KR20220133044A - Actuator device - Google Patents

Abstract

The present invention relates to an actuator device which comprises: a housing; a holder arranged inside the housing; a reflection member arranged in the holder; a moving plate arranged between the housing and the holder; a mover rigid coupled to the holder; a first magnet arranged in the mover rigid; a second magnet arranged in the housing and generating a repulsive force against the first magnet; and a driving unit for tilting the holder, wherein the center axis of the first magnet is arranged to be eccentric to the center axis of the moving plate based on a first optical axis. The actuator device of the present invention can carry out an optical image stabilization (OIS) function by tilting the reflection member.

Description

Actuator device

This embodiment relates to an actuator device.

A camera device is a device that takes a picture or a video of a subject, and is installed in an optical device such as a smartphone, a drone, or a vehicle.

In recent camera devices, in order to improve image quality, an optical image stabilization (OIS) function that corrects image shake caused by user movement, and automatic adjustment of the distance between the image sensor and the lens to align the focal length of the lens There is a demand for a zoom function that increases or decreases the magnification of a distant subject through an auto focus (AF) function and a zoom lens.

This embodiment intends to provide an actuator device in which an OIS function is implemented through tilting of a reflective member.

Furthermore, it is an object of the present invention to provide an actuator device in which the performance of the first axis tilt driving is improved.

The actuator device according to this embodiment includes a housing; a holder disposed within the housing; a reflective member disposed on the holder; a moving plate disposed between the housing and the holder; a mover rigid coupled to the holder; a first magnet disposed on the mover rigid; a second magnet disposed in the housing and generating a repulsive force with the first magnet; and a driving unit for tilting the holder, wherein a central axis of the first magnet is eccentric with a central axis of the moving plate with respect to a first optical axis.

A horizontal axis passing through the central axis of the first magnet may be eccentric in a direction of a horizontal axis passing through the central axis of the moving plate and a second optical axis perpendicular to the first optical axis with respect to the facing surface.

A vertical axis passing through the central axis of the first magnet may not be eccentric in a direction between a vertical axis passing through the central axis of the moving plate and the horizontal axis with respect to the facing surface.

A portion of the housing may be disposed between the moving plate and the mover rigid.

The housing may include two holes into which the mover rigid is inserted.

The horizontal axis of the first magnet may be disposed higher than the horizontal axis of the moving plate.

At least a portion of the second magnet may be disposed between the first magnet and the moving plate.

The moving plate may be disposed between the mover rigid and the holder.

The driving unit may include a first driving unit and a second driving unit, the first driving unit may include a first driving magnet and a first coil, and may include the second driving unit, a second driving magnet and a second coil.

The first driving unit may tilt the holder based on a first axis of the moving plate.

The second driving unit may tilt the holder based on a second axis perpendicular to the first axis of the moving plate.

A center of the second magnet may be disposed at the same height as a center of the first magnet.

The housing includes a second portion disposed above the holder and a third portion disposed below the holder, wherein the holder is disposed between the second portion and the third portion of the housing by the first driving portion. In an initial state in which current is not applied to the first driving unit, the holder may be in contact with the housing.

A first direction driving current may be applied to the first coil to drive the first coil, and a second direction driving current opposite to the first direction driving current may not be used to drive the first coil. .

The first axis of the moving plate may be defined by a first protrusion of the moving plate and a groove of the housing.

The moving plate includes a first surface facing the housing and a second surface facing the holder, and the first surface of the moving plate includes a plurality of first protrusions spaced apart from each other in the direction of the first axis. and the second surface of the moving plate may include a plurality of second protrusions spaced apart from each other in the direction of the second axis.

The housing includes a plurality of grooves in which the plurality of first protrusions are disposed, wherein the plurality of grooves of the housing includes a first groove in four-point contact with one first protrusion among the plurality of first protrusions; It may include a second groove in contact with the other first protrusion of the first protrusion at two points.

The holder includes a plurality of grooves in which the plurality of second projections are disposed, and the plurality of grooves of the holder includes a first groove in four-point contact with one second projection among the plurality of second projections, and the plurality of grooves. It may include a second groove in contact with the second protrusion of the other one of the second protrusions at two points.

a substrate disposed on the housing, the first driving magnet may be disposed on a lower surface of the holder, and the first coil may be disposed on the substrate at a position corresponding to the first driving magnet.

The second driving magnet includes a first sub-magnet disposed on a first side of the holder and a second sub-magnet disposed on a second side of the holder, wherein the second coil is disposed on the substrate and the second It may include a first sub-coil disposed at a position corresponding to the first sub-magnet, and a second sub-coil disposed on the substrate and disposed at a position corresponding to the second sub-magnet.

The holder includes a first protrusion formed on an upper surface of the holder and a second protrusion formed on a lower surface of the holder, and in the initial state, the first protrusion of the holder is in contact with the second portion of the housing, , the second protrusion of the holder may be brought into contact with the third portion of the housing by applying a current to the first driving unit or by impact.

The moving plate may be disposed between the first magnet and the holder.

The first magnet and the second magnet may be disposed between the mover rigid and the moving plate.

A camera device according to this embodiment includes a printed circuit board; an image sensor disposed on the printed circuit board; actuator device; and a lens disposed in an optical path formed by the reflective member and the image sensor of the actuator device.

The optical device according to the present embodiment includes a main body; The camera device of claim 24 disposed on the main body; and a display disposed on the main body and outputting at least one of an image and an image captured by the camera device.

The actuator device according to this embodiment includes a fixing unit; a moving part that moves with respect to the fixed part; a moving plate disposed between the fixed part and the moving part; a first magnet disposed on the moving part; a second magnet disposed on the fixing part and generating a repulsive force with the first magnet; and a driving unit for tilting the moving unit based on x and y axes perpendicular to each other of the moving plate, wherein in the y axis direction, a horizontal axis passing through the center of the second magnet is eccentric with the x axis of the moving plate can be arranged as much as possible.

The moving plate may include a plurality of first convex portions formed on one surface and a plurality of second convex portions formed on the other surface.

The x-axis may correspond to a straight line connecting two convex parts among the plurality of first convex parts.

The y-axis may correspond to a straight line connecting two convex parts among the plurality of second convex parts.

In a direction passing through the x-axis, the center of the second magnet may not be eccentric with the y-axis.

When viewed from the moving plate toward the first magnet, the center of the second magnet may be arranged to coincide with the y-axis.

The driving unit may include a first driving unit and a second driving unit, the first driving unit may include a first driving magnet and a first coil, and may include the second driving unit, a second driving magnet and a second coil.

A central portion of the second magnet may be disposed at the same height as a central portion of the first magnet.

The fixing part includes a second part disposed above the movable part and a third part disposed below the movable part, and the movable part is the second part of the fixing part by the first driving magnet and the first coil. In an initial state that moves between the part and the third part and no current is applied to the first coil, the moving part may be in contact with the second part of the fixing part.

The actuator device according to this embodiment includes a fixing unit; a moving part that moves with respect to the fixed part; a moving plate disposed between the fixed part and the moving part; a first magnet disposed on the moving part; a second magnet disposed on the fixing part; and a driving unit for tilting the moving unit, wherein a part of the fixed unit is disposed between the moving plate and the second magnet, and in an initial state in which no current is applied to the driving unit, the moving unit is in contact with the fixed unit. can be

The fixing part may include a housing, the moving part may include a holder disposed in the housing, and in an initial state in which no current is applied to the driving part, the holder may be in contact with the upper plate of the housing.

The actuator device according to this embodiment includes a housing; a holder disposed within the housing; a reflective member disposed on the holder; a moving plate disposed between the housing and the holder; a mover rigid coupled to the holder; a first magnet disposed on the mover rigid; a second magnet disposed in the housing and generating a repulsive force with the first magnet; and a driving unit for tilting the holder, wherein in an initial state in which no current is applied to the driving unit, the holder may be in contact with the housing.

In the initial state, the holder may be in contact with the inner surface of the housing adjacent to the incident surface of the reflective member.

As a current is applied to the driving unit, the holder may be spaced apart from the inner surface of the housing and may be tilted based on a first axis of the moving plate.

The housing includes a second portion disposed above the holder and a third portion disposed below the holder, wherein the holder is movable between the second portion and the third portion of the housing by the driving unit. can

According to the present embodiment, the poor performance of the first axis tilt driving may be improved.

Furthermore, it is possible to fundamentally block the problem of the moving plate being removed when the first axis is driven.

In more detail, through the eccentric arrangement of the repulsive magnet, only the current in the opposite direction may be used without using the current in the direction in which the moving plate can be removed when the first axis is driven.

1 is a perspective view of a camera device according to the present embodiment.
2 is a bottom perspective view of the camera device according to the present embodiment.
3 is a plan view of the camera device according to the present embodiment.
4 is a cross-sectional view taken along line AA of FIG. 3 .
FIG. 5 is a cross-sectional view taken along line BB of FIG. 3 .
FIG. 6 is a cross-sectional view taken along CC of FIG. 3 .
7 is an exploded perspective view of the camera device according to the present embodiment.
8 is a perspective view in which a cover member is omitted in the camera device according to the present embodiment.
9 is a perspective view of a reflective member driving device according to the present embodiment.
10 is an exploded perspective view of the reflective member driving device according to the present embodiment.
11 is a bottom exploded perspective view of the reflective member driving apparatus according to the present embodiment.
12 and 13 are views for explaining a structure related to the moving plate of the reflective member driving apparatus according to the present embodiment.
14 is a perspective view of a state in which the configuration of the moving part of the reflective member driving apparatus according to the present embodiment is omitted.
15 is a perspective view of the reflective member driving device of FIG. 14 in a state in which the configuration of the substrate and the like are omitted.
16 is a perspective view illustrating a fixing part and related configuration of the reflective member driving device according to the present embodiment.
17 is a perspective view illustrating a state in which a moving part is disposed on a fixed part in the reflective member driving apparatus according to the present embodiment.
18 is an exploded perspective view showing the related shapes of the mover rigid and the fixing part of the reflective member driving apparatus according to the present embodiment.
19 is a perspective view illustrating an arrangement state of the second magnet of the fixing part of the reflective member driving apparatus according to the present embodiment.
20 is a perspective view illustrating a coupling state between the holder and the mover rigid of the reflective member driving device according to the present embodiment.
Fig. 21 is a front view showing the holder of the reflective member driving device according to the present embodiment.
22 is a perspective view illustrating a mover rigid, a first magnet, and a second magnet of the reflective member driving apparatus according to the present embodiment.
23 is a perspective view illustrating a first magnet, a second magnet, and a driving unit of the reflective member driving apparatus according to the present embodiment.
24 is a perspective view illustrating a first magnet, a second magnet, and a driving magnet of the reflective member driving apparatus according to the present embodiment.
25 is a side view illustrating the first magnet, the second magnet, and the driving magnet of the reflective member driving apparatus according to the present embodiment.
26 is a cross-sectional view of the reflective member driving device according to the present embodiment.
27 is a cross-sectional perspective view of a reflective member driving device according to a modification.
28 is a perspective view (a) and a rear side view (b) illustrating the first magnet and the second magnet of the reflective member driving apparatus according to the present embodiment.
29 is a perspective view illustrating a state in which the moving plate is disposed on the moving part of the reflective member driving apparatus according to the present embodiment.
30 and 31 are views for explaining a tilt with respect to the x-axis of the reflective member driving apparatus according to the present embodiment.
32 to 34 are views for explaining the tilt about the y-axis of the reflective member driving apparatus according to the present embodiment.
35 is a perspective view of the lens driving device according to the present embodiment.
36 is a perspective view in which a part of the lens driving apparatus according to the present embodiment is omitted.
37 is a perspective view of the lens driving device in the state shown in FIG. 36 as viewed from another direction.
38 is a perspective view in which a part of the lens driving apparatus according to the present embodiment is omitted.
Fig. 39 is a perspective view of the lens driving device according to the present embodiment, in which components such as a substrate and a coil are omitted.
FIG. 40 is a perspective view of a state in which the first lens and related components are omitted in the lens driving device of the state shown in FIG. 39 .
41 is a perspective view and a partially enlarged view of a partial configuration of the lens driving apparatus according to the present embodiment.
42 is a view for explaining an arrangement structure of a coil and a sensor of the lens driving device according to the present embodiment.
43 is a perspective view illustrating a state in which the second housing is omitted in the lens driving device of the state shown in FIG. 39 .
44 is a perspective view of a state in which a guide rail is omitted from the lens driving device of the state shown in FIG. 43 .
45 is an enlarged view of a partial configuration of the lens driving apparatus according to the present embodiment.
46 is a perspective view of a first moving part and a second moving part and related configurations of the lens driving device according to the present embodiment.
47 is a perspective view of a second moving part and related components of the lens driving device according to the present embodiment.
48 is an exploded perspective view of the lens driving device according to the present embodiment.
49 is a perspective view of a second housing of the lens driving device according to the present embodiment.
50 and 51 are exploded perspective views of a part of the lens driving apparatus according to the present embodiment.
52 is a cross-sectional view of the lens driving device according to the present embodiment.
53 to 55 are diagrams for explaining implementation of a zoom function and an autofocus function of the lens driving apparatus according to the present embodiment.
56 is a perspective view of a partial configuration of the camera device according to the present embodiment.
57 is an exploded perspective view of an image sensor, a filter, and related components of the camera device according to the present embodiment.
58 is a perspective view of the front side of the optical device according to the present embodiment.
59 is a perspective view of the rear side of the optical device according to the present embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical spirit of the present invention is not limited to some embodiments described, but may be implemented in various different forms, and within the scope of the technical spirit of the present invention, one or more of the components may be selected between the embodiments. It can be used by combining or substituted with

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be generally understood by those of ordinary skill in the art to which the present invention pertains, unless specifically defined and described explicitly. It may be interpreted as a meaning, and generally used terms such as terms defined in advance may be interpreted in consideration of the contextual meaning of the related art.

In addition, the terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In this specification, the singular form may also include the plural form unless otherwise specified in the phrase, and when it is described as "at least one (or one or more) of A and (and) B, C", it is combined with A, B, C It may include one or more of all possible combinations.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the component from other components, and are not limited to the essence, order, or order of the component by the term.

And, when it is described that a component is 'connected', 'coupled', or 'connected' to another component, the component is directly 'connected', 'coupled', or 'connected' to the other component. In addition to the case, it may include a case of 'connected', 'coupled', or 'connected' by another element between the element and the other element.

In addition, when it is described as being formed or disposed on "above (above)" or "below (below)" of each component, "above (above)" or "below (below)" means that two components are directly connected to each other. It includes not only the case of contact, but also the case where one or more other components are formed or disposed between two components. In addition, when expressed as "upper (upper)" or "lower (lower)", the meaning of not only an upper direction but also a lower direction based on one component may be included.

Hereinafter, a reflective member driving apparatus according to the present embodiment will be described with reference to the drawings.

9 is a perspective view of the reflective member driving device according to the present embodiment, FIG. 10 is an exploded perspective view of the reflective member driving device according to the present embodiment, and FIG. 11 is a bottom exploded perspective view of the reflective member driving device according to the present embodiment. , 12 and 13 are views for explaining the structure related to the moving plate of the reflective member driving device according to the present embodiment, and FIG. 14 is a state in which the configuration of the moving part of the reflective member driving device according to the present embodiment is omitted. is a perspective view of the reflective member driving device of FIG. 14 , and FIG. 16 is a perspective view of a state in which the configuration of the substrate and the like are omitted, and FIG. , Figure 17 is a perspective view showing a state in which the moving part is arranged in the fixed part in the reflective member driving device according to this embodiment, and Figure 18 is the related shape of the mover rigid and the fixed part of the reflective member driving device according to this embodiment. It is an exploded perspective view showing, FIG. 19 is a perspective view showing an arrangement state of the second magnet of the fixing part of the reflective member driving device according to the present embodiment, and FIG. 20 is a holder and a mover of the reflective member driving device according to the present embodiment. It is a perspective view showing the coupling state of the rigid, FIG. 21 is a front view showing the holder of the reflective member driving device according to the present embodiment, and FIG. 22 is the mover rigid, the first magnet and the reflective member driving device according to the present embodiment. A perspective view illustrating a second magnet, FIG. 23 is a perspective view illustrating a first magnet, a second magnet, and a driving unit of the reflective member driving device according to the present embodiment, and FIG. 24 is a reflective member driving device according to the present embodiment. A perspective view showing a first magnet, a second magnet and a driving magnet, FIG. 25 is a side view showing the first magnet, the second magnet and the driving magnet of the reflective member driving device according to the present embodiment, and FIG. 26 is this embodiment A cross-sectional view of a reflective member driving device according to an example, FIG. 27 is a cross-sectional perspective view of a reflective member driving device according to a modification, and FIG. 28 is a first magnet and a second magnet of the reflective member driving device according to the present embodiment. Perspective (a) and after It is a side view (b), and FIG. 29 is a perspective view showing a state in which the moving plate is disposed on the moving part of the reflective member driving apparatus according to the present embodiment.

The reflective member driving apparatus 1000 may perform an optical image stabilization (OIS) function. The reflective member driving apparatus 1000 may perform a hand shake correction function. The reflective member driving apparatus 1000 may move the reflective member 1220 . The reflective member driving apparatus 1000 may tilt the reflective member 1220 . The reflective member driving apparatus 1000 may tilt the reflective member 1220 and the reflective member 1220 about two axes. The reflective member driving apparatus 1000 may tilt the reflective member 1220 about the x-axis and the y-axis. The x-axis and the y-axis may be perpendicular to each other.

The reflective member driving device 1000 may be a reflective member actuator. The reflective member driving device 1000 may be an OIS actuator. The reflective member driving device 1000 may be an OIS driving device. The reflective member driving device 1000 may be a prism driving device. The reflective member driving device 1000 may be an actuator. The reflective member driving device 1000 may be an actuator device. The reflective member driving device 1000 may be an actuator driving device. The reflective member driving device 1000 may be a tilting device.

The reflective member driving apparatus 1000 may include a fixing unit 1100 . The fixed part 1100 may be a relatively fixed part when the moving part 1200 moves. The fixing unit 1100 may accommodate at least a portion of the moving unit 1200 . The fixing unit 1100 may be disposed outside the moving unit 1200 .

The reflective member driving apparatus 1000 may include a housing 1110 . The fixing part 110 may include a housing 1110 . The housing 1110 may be disposed outside the holder 1210 . The housing 1110 may accommodate at least a portion of the holder 1210 . The housing 1110 may include an opening or a hole in the upper plate and any one of the side plates for securing a path of light. The housing 1110 may include an upper plate, a lower plate, and a plurality of side plates.

The housing 1110 may include a first portion 1111 . The first portion 1111 may be formed on a side plate of the housing 1110 . A moving plate 1300 may be disposed on the first portion 1111 . The first portion 1111 may be disposed between the holder 1210 and the mover rigid 1230 . The first portion 1111 may be disposed between the mover rigid 1230 and the moving plate 1300 . A second magnet 1120 may be disposed on the first portion 1111 . The moving plate 1300 may be disposed on one side of the first part 1111 and the second magnet 1120 may be disposed on the other side of the opposite side. A portion of the housing 1110 may be disposed between the moving plate 1300 and the mover rigid 1230 .

The housing 1110 may include a second portion 1112 . The second portion 1112 may be disposed on the holder 1210 . The second part 1112 may come into contact with the holder 1210 when the holder 1210 moves upward. The second portion 1112 may overlap the holder 1210 in the moving direction of the holder 1210 . The second part 1112 may be a top plate of the housing 1110 .

The housing 1110 may include a third portion 1113 . The third portion 1113 may be disposed under the holder 1210 . The third portion 1113 may be in contact with the holder 1210 when the holder 1210 moves downward. The third portion 1113 may overlap the holder 1210 in the moving direction. The third portion 1113 may be a lower plate of the housing 1110 .

The housing 1110 may include a hole 1114 . The hole 1114 may be a mover rigid through hole. The hole 1114 may be formed in the side plate of the housing 1110 . The hole 1114 may be formed in the first portion 1111 of the housing 1110 . A mover rigid 1230 may be disposed in the hole 1114 . The mover rigid 1230 may be disposed to pass through the hole 1114 . The hole 1114 may be formed to be larger than the moving space of the mover rigid 1230 so as not to interfere with the mover rigid 1230 . The housing 1110 may include two holes 1114 into which the mover rigid 1230 is inserted.

The housing 1110 may include a groove 1115 . The groove 1115 may be a moving plate first protrusion receiving groove. A first protrusion 1310 of the moving plate 1300 may be disposed in the groove 1115 . The groove 1115 may accommodate at least a portion of the moving plate 1300 . The groove 1115 may restrict movement except for rotation of the first protrusion 1310 of the moving plate 1300 . The groove 1115 may include an inclined surface in contact with the first protrusion 1310 of the moving plate 1300 . The inclined surface may include a plurality of inclined surfaces.

The housing 1110 may include a plurality of grooves 1115 in which the plurality of first protrusions 1310 are disposed. The plurality of grooves 1115 of the housing 1110 includes a first groove 1115-1 in four-point contact with one of the plurality of first projections 1310 and a plurality of first projections ( 1310) may include a second groove 1115-2 contacting the other first protrusion 1310 at two points.

The groove 1115 may include a first groove 1115 - 1 . The first groove 1115 - 1 may be a four-point contact groove. The first groove 1115 - 1 may contact one of the two first protrusions 1310 of the moving plate 1300 at four points. Through this, the first groove 1115 - 1 of the housing 1110 may constrain movement in four directions, up, down, left, and right except for rotation of one of the first protrusions 1310 of the moving plate 1300 .

The groove 1115 may include a second groove 1115 - 2 . The second groove 1115 - 2 may be a two-point contact groove. The second groove 1115 - 2 may contact the other one of the two first protrusions 1310 of the moving plate 1300 at two points. Through this, the second groove 1115 - 2 of the housing 1110 may constrain the movement of the other one of the first protrusions 1310 of the moving plate 1300 in two directions. For example, the second groove 1115 - 2 of the housing 1110 may constrain the vertical movement of the first protrusion 1310 of the moving plate 1300 and may not restrict the movement in the left and right directions.

The housing 1110 may include a protrusion 1116 . The protrusion 1116 may be coupled to the lens driving device 2000 . The protrusion 1116 may be formed on a side plate of the housing 1110 . The protrusion 1116 may be formed on a side of the housing 1110 facing the lens driving device 2000 . The protrusion 1116 may include a trapezoidal cross-section. The protrusion 1116 may be coupled to the housing 2110 of the lens driving device 2000 . The protrusion 1116 may be inserted into the first groove 2111 of the housing 2110 of the lens driving device 2000 . The protrusion 1116 may be coupled to the housing 2110 of the lens driving device 2000 by an adhesive.

The housing 1110 may include a protrusion 1117 . The protrusion 1117 may be coupled to the lens driving device 2000 . The protrusion 1117 may be formed on the side plate of the housing 1110 . The protrusion 1117 may be formed on a side of the housing 1110 facing the lens driving device 2000 . The protrusion 1117 may have a circular cross-section. The protrusion 1117 may be coupled to the housing 2110 of the lens driving device 2000 . The protrusion 1117 may be inserted into the second groove 2112 of the housing 2110 of the lens driving device 2000 . The protrusion 1117 may be coupled to the housing 2110 of the lens driving device 2000 by an adhesive.

The housing 1110 may include a protrusion 1118 . The protrusion 1118 may be a mover-rigid contact protrusion. The protrusion 1118 may be formed on the second surface of the housing 1110 . The protrusion 1118 may be in contact with the mover rigid 1230 . The protrusion 1118 may be formed on the inner circumferential surface of the hole 1114 of the housing 1110 through which the mover rigid 1230 passes. The protrusion 1118 may be formed to contact at least one of a lower surface and an upper surface of the mover rigid 1230 when the mover rigid 1230 is moved. The protrusion 1118 may prevent the mover rigid 1230 from being detached from the original position too much.

The protrusion 1118 may include a plurality of protrusions. The protrusion 1118 may include two protrusions. The two protrusions may be spaced apart from each other by the same distance as the second groove disposed below among the grooves 1119 of the housing 1110 . When the body portion of the mover-rigid 1230 moves downward, the body portion of the mover-rigid 1230 may contact the two protrusions 1118 of the housing 1110 .

The housing 1110 may include a groove 1119 . At least a portion of the protrusion 1231 may be disposed in the groove 1119 . A portion of the protrusion 1231 may be disposed in the groove 1119 . The groove 1119 may be opened to the outside of the housing 1110 . The groove 1119 may be larger than the protrusion 1231 of the mover rigid 1230 . The groove 1119 may be spaced apart from the protrusion 1231 of the mover rigid 1230 . In an initial state in which power is not applied to the driving unit 1400 , the groove 1119 may be spaced apart from the protrusion 1231 of the mover rigid 1230 . Even when power is applied to the driving unit 1400 to be driven, the groove 1119 may be spaced apart from the protrusion 1231 of the mover-rigid 1230 . The groove 1119 of the housing 1110 and the protrusion 1231 of the mover rigid 1230 may be contactable by an external impact. That is, the groove 1119 of the housing 1110 and the protrusion 1231 of the mover-rigid 1230 do not come into contact within the normal driving range of the mover-rigid 1230. have. The groove 1119 of the housing 1110 and the protrusion 1231 of the mover rigid 1230 may perform a stopper function upon impact.

The groove 1119 may include a first groove portion and a second groove portion recessed from the first groove portion. The groove 1119 may be formed as a two-stage groove. The groove 1119 may have a double groove shape. A damper 1500 may be disposed in the second groove portion. A contact area between the damper 1500 and the housing 1110 may be increased by the second groove. The second groove may prevent flow of the damper 1500 .

The groove 1119 may include a plurality of grooves. The groove 1119 may include a first groove in which at least a portion of the first protruding area of the mover rigid 1230 is disposed, and a second groove in which at least a portion of the second protruding area is disposed. The housing 1110 may include a first surface facing the upper surface of the body portion of the mover rigid 1230 . The housing 1110 may include a second surface facing the lower surface of the body portion of the mover rigid 1230 . The housing 1110 may include a first groove formed on the first surface of the housing 1110 and a second groove formed on the second surface of the housing 1110 .

The reflective member driving apparatus 1000 may include a second magnet 1120 . The fixing unit 1100 may include a second magnet 1120 . The second magnet 1120 may be disposed on the fixing part 1100 . The second magnet 1120 may be a second repulsive force magnet. The second magnet 1120 may be disposed in the housing 1110 . The second magnet 1120 may be disposed on the first portion 1111 of the housing 1110 . The second magnet 1120 may be disposed opposite to the moving plate 1300 with respect to the first portion 1111 of the housing 1110 . The second magnet 1120 may be disposed between the first magnet 1240 and the moving plate 1300 . The second magnet 1120 may be disposed to face the first magnet 1240 . The second magnet 1120 may generate a repulsive force with the first magnet 1240 . The second magnet 1120 may be disposed to generate a repulsive force with the first magnet 1240 . The second magnet 1120 may be disposed to face the same polarity as that of the first magnet 1240 . The second magnet 1120 may push the first magnet 1240 out.

At least a portion of the second magnet 1120 may be disposed between the first magnet 1240 and the moving plate 1300 . The second magnet 1120 may be disposed between the first magnet 1240 and the moving plate 1300 . The center of the second magnet 1120 may be disposed at the same height as the center of the first magnet 1240 .

In this embodiment, the driving unit 1400 may tilt the moving unit 1200 based on the x-axis and the y-axis perpendicular to each other of the moving plate 1300 . At this time, in the y-axis direction, a horizontal axis passing through the center of the second magnet 1120 may be arranged to be eccentric with the x-axis of the moving plate 1300 . The horizontal axis may be parallel to the x-axis.

In a direction passing through the x-axis, the center of the second magnet 1120 may not be eccentric with the y-axis. When viewed from the moving plate 1300 toward the first magnet 1240, the center of the second magnet 1120 may be arranged to coincide with the y-axis. The center of the second magnet 1120 may be disposed at the same height as the center of the first magnet 1240 . The center of the second magnet 1120 may be disposed at the same height as the center of the first magnet 1240 . The center of gravity of the second magnet 1120 may be disposed at the same height as the center of gravity of the first magnet 1240 .

The second magnet 1120 may include a second surface disposed opposite to the first surface of the second magnet 1120 . The first magnet 1240 may include a first surface facing the second surface of the second magnet 1120 . The first surface of the first magnet 1240 may have the same polarity as the second surface of the second magnet 1120 .

In a direction in which the first surface of the first driving magnet 1411 faces, the second magnet 1120 may be disposed so as not to overlap the first driving magnet 1411 . In a direction in which the first surface of the second magnet 1120 faces, the second magnet 1120 may be disposed so as not to overlap the first driving magnet 1411 .

The reflective member driving apparatus 1000 may include a substrate 1130 . The fixing unit 1100 may include a substrate 1130 . The substrate 1130 may be a flexible printed circuit board (FPCB). The substrate 1130 may be a flexible printed circuit board. The substrate 1130 may be disposed in the housing 1110 .

The reflective member driving apparatus 1000 may include a SUS 1140 . The fixing unit 1100 may include a suspension 1140 . The suspension 1140 may be disposed on the substrate 1130 . The suspension 1140 may be disposed on the outer surface of the substrate 1130 . The suspension 1140 may reinforce the strength of the substrate 1130 .

The reflective member driving apparatus 1000 may include a gyro sensor 1150 . The fixing unit 1100 may include a gyro sensor 1150 . The gyro sensor 1150 may detect shaking of the camera device 10 . The shake detected by the gyro sensor 1150 may be offset through the hand shake correction function. The gyro sensor 1150 may be disposed on the substrate 1130 . The gyro sensor 1150 may be disposed on the outer surface of the substrate 1130 .

The reflective member driving apparatus 1000 may include a plate 1160 . The fixing unit 1100 may include a plate 1160 . The plate 1160 may be coupled to the housing 1110 . The plate 1600 may cover the mover rigid 1230 . The plate 1600 may cover the mover rigid 1230 . The plate 1160 may be disposed to cover the open portion of the housing 1110 . The plate 1160 may be disposed to close the opened front of the housing 1110 . The plate 1160 may be formed of a metal plate. The housing 1110 may include a groove in which an adhesive for fixing the plate 1160 to the housing 1110 is disposed.

The reflective member driving apparatus 1000 may include a driver IC 1170 . The fixing unit 1100 may include a driver IC 1170 . The driver IC 1170 may be disposed on the substrate 1130 . The driver IC 1170 may be electrically connected to the first coil 1412 and the second coil 1422 . The driver IC 1170 may supply current to the first coil 1412 and the second coil 1422 . The driver IC 1170 may control one or more of a voltage and a current applied to each of the first coil 1412 and the second coil 1422 . The driver IC 1170 may be electrically connected to the Hall sensors 1413 and 1423 . The driver IC 1170 may feedback-control the voltage and current applied to the first coil 1412 and the second coil 1422 through the position of the reflective member 1220 sensed by the Hall sensors 1413 and 1423 . .

The reflective member driving apparatus 1000 may include a moving unit 1200 . The moving unit 1200 may be a moving unit. The moving part 1200 may be a movable part. The moving unit 1200 may be a mover. The moving unit 1200 may move with respect to the fixed unit 1100 . The moving unit 1200 may be tilted with respect to the fixed unit 1100 . The moving unit 1200 may be disposed in the fixed unit 1100 . At least a portion of the moving unit 1200 may be spaced apart from the fixed unit 1100 .

In the present embodiment, in an initial state in which no current is applied to the driving unit 1400 , the moving unit 1200 may be in contact with the fixed unit 1100 .

The reflective member driving apparatus 1000 may include a holder 1210 . The moving unit 1200 may include a holder 1210 . The holder 1210 may be disposed in the housing 1110 . The holder 1210 is movable with respect to the housing 1110 . The holder 1210 may be tilted with respect to the housing 1110 . At least a portion of the holder 1210 may be spaced apart from the housing 1110 . The holder 1210 may be in contact with the housing 1110 .

In this embodiment, the holder 1210 may move between the second part 1112 and the third part 1113 of the housing 1110 by the first driving part 1410 . In an initial state in which no current is applied to the first driving unit 1410 , the holder 1210 may be in contact with the housing 1110 . In the initial state, the holder 1210 may be in contact with the inner surface of the housing 1110 adjacent to the incident surface of the reflective member 1220 . As current is applied to the driving unit 1400 , the holder 1210 may be spaced apart from the inner surface of the housing 1110 and may be tilted based on the first axis of the moving plate 1300 .

The holder 1210 may include a groove 1211 . The groove 1211 may be a moving plate second protrusion receiving groove. The second protrusion 1320 of the moving plate 1300 may be disposed in the groove 1211 . The groove 1211 may accommodate at least a portion of the moving plate 1300 . The groove 1211 may restrict movement except for rotation of the second protrusion 1320 of the moving plate 1300 . The groove 1211 may include an inclined surface in contact with the second protrusion 1320 of the moving plate 1300 . The inclined surface may include a plurality of inclined surfaces.

The holder 1210 may include a plurality of grooves 1211 in which the plurality of second protrusions 1320 are disposed. The plurality of grooves 1211 of the holder 1210 includes a first groove 1211-1 in four-point contact with one of the second projections 1320 among the plurality of second projections 1320, and a plurality of second projections ( A second groove 1211 - 2 in contact with the second protrusion 1320 of the other one of the 1320 , 1211 - 2 may be included.

The groove 1211 may include a first groove 1211-1. The first groove 1211-1 may be a four-point contact groove. The first groove 1211-1 may contact one of the two second protrusions 1320 of the moving plate 1300 at four points. Through this, the first groove 1211-1 of the holder 1210 may constrain movement in four directions, up, down, left, and right except for rotation of one of the second protrusions 1320 of the moving plate 1300 .

The groove 1211 may include a second groove 1211 - 2 . The second groove 1211 - 2 may be a two-point contact groove. The second groove 1211 - 2 may be a two-point contact groove. The second groove 1211 - 2 may contact the other one of the two second protrusions 1320 of the moving plate 1300 at two points. Through this, the second groove 1211 - 2 of the holder 1210 may constrain the movement of the other one of the second protrusions 1320 of the moving plate 1300 in two directions. For example, the second groove 1211 - 2 of the holder 1210 may constrain the movement in the left and right directions of the second protrusion 1320 of the moving plate 1300 and may not restrict the movement in the vertical direction.

The holder 1210 may include a first protrusion 1212 . The first protrusion 1212 may be an upper stopper. The first protrusion 1212 may be formed on the upper surface of the holder 1210 . The first protrusion 1212 may protrude from the upper surface of the holder 1210 . The first protrusion 1212 may contact the housing 1110 when the holder 1210 moves upward. The first protrusion 1212 may contact the second portion 1112 of the housing 1110 when the holder 1210 moves upward.

The holder 1210 may include a second protrusion 1213 . The second protrusion 1213 may be a lower stopper. The second protrusion 1213 may be formed on the lower surface of the holder 1210 . The second protrusion 1213 may protrude from the lower surface of the holder 1210 . The second protrusion 1213 may contact the housing 1110 when the holder 1210 moves downward. The second protrusion 1213 may contact the third portion 1113 of the housing 1110 when the holder 1210 moves downward.

In the present embodiment, in the initial state, the first protrusion 1212 of the holder 1210 may be in contact with the second portion 1112 of the housing 1110 . The second protrusion 1213 of the holder 1210 may come into contact with the third portion 1113 of the housing 1110 by applying a current to the first driving unit 1410 or by an impact.

The holder 1210 may include an adhesive receiving groove 1214 . The adhesive receiving groove 1214 may receive an adhesive for fixing the reflective member 1220 to the holder 1210 . The adhesive receiving groove 1214 may be formed on a surface in contact with the reflective member 1220 . An adhesive may be disposed in the adhesive receiving groove 1214 .

The holder 1210 may include a groove 1215 . The groove 1215 may be a spacing groove providing a separation space between the reflective member 1220 and the reflective member 1220 . The groove 1215 may be formed on a surface in contact with the reflective member 1220 . A contact area between the reflective member 1220 and the holder 1210 may be reduced by the groove 1215 .

The holder 1210 may include a groove 1216 . The groove 1216 may be a slimming groove. The groove 1216 may be formed in the center of the holder 1210 . The weight of the holder 1210 may be reduced by the groove 1216 .

The holder 1210 may include a magnet receiving groove 1217 . Driving magnets 1411 and 1421 may be disposed in the magnet receiving groove 1217 . The magnet receiving groove 1217 may be formed in a shape corresponding to the driving magnets 1411 and 1421 . The magnet receiving groove 1217 may be concavely formed on the lower surface of the holder 1210 . The magnet receiving groove 1217 may be formed on the lower surface and both sides of the holder 1210 . The magnet accommodating groove 1217 may include a plurality of magnet accommodating grooves. The magnet accommodating groove 1217 may include a first magnet accommodating groove accommodating the first driving magnet 1411 and the yoke 1414 . The magnet accommodating groove 1217 may include a second magnet accommodating groove accommodating the second driving magnet 1421 and the yoke 1424 .

The holder 1210 may include a groove 1218 . The groove 1218 may be a mover rigid receiving groove. A coupling portion 1232 of the mover rigid 1230 may be disposed in the groove 1218 . The groove 1218 may be formed in a shape corresponding to the coupling portion 1232 of the mover rigid 1230 . The groove 1218 may include a groove in which an adhesive for fixing the coupling portion 1232 of the mover rigid 1230 to the holder 1210 is accommodated. The holder 1210 may include a plurality of protrusions formed in the groove 1218 . At least a portion of the coupling portion 1232 of the mover rigid 1230 may be inserted into the groove 1218 . The reflective member driving device 1000 may include an adhesive for fixing the mover rigid 1230 to the holder 1210 . At least a portion of the adhesive may be disposed between the plurality of protrusions formed in the grooves 1218 of the holder 1210 . Through this, the coupling force between the mover rigid 1230 and the holder 1210 may be improved.

The holder 1210 may include a lateral stopper 1219 . The side stoppers 1219 may be formed on both sides of the holder 1210 . The side stopper 1219 may protrude from a side surface of the holder 1210 . The side stopper 1219 may contact the housing 1110 when the holder 1210 moves laterally. The side stopper 1219 may contact the side plate of the housing 1110 when the holder 1210 moves laterally.

The reflective member driving apparatus 1000 may include a reflective member 1220 . The moving unit 1200 may include a reflective member 1220 . The reflective member 1220 may be disposed on the holder 1210 . The reflective member 1220 may be disposed in the holder 1210 . The reflective member 1220 may be coupled to the holder 1210 . The reflective member 1220 may be fixed to the holder 1210 . The reflective member 1220 may be fixed to the holder 1210 by an adhesive. The reflective member 1220 may move integrally with the holder 1210 . The reflective member 1220 may change the path of light. The reflective member 1220 may reflect light. The reflective member 1220 may include a prism. The reflective member 1220 may include a mirror. The reflective member 1220 may be formed in a triangular prism shape. An angle between the path of the light incident on the reflective member 1220 and the path of the light exiting may be 90 degrees.

The reflective member driving apparatus 1000 may include a mover rigid 1230 . The moving unit 1200 may include a mover rigid 1230 . The mover rigid 1230 may be coupled to the holder 1210 . The mover rigid 1230 may be formed of a member separate from the holder 1210 . The mover rigid 1230 may be coupled to the holder 1210 through the hole 1114 of the housing 1110 . The mover rigid 1230 may be formed of a non-magnetic metal. A first magnet 1240 and a second magnet 1120 may be disposed between the mover rigid 1230 and the holder 1210 . The first magnet 1240 and the second magnet 1120 may be disposed so that the same polarity faces each other and may repel each other. The first magnet 1240 fixed to the housing 1110 may push the second magnet 1120 outward. The mover rigid 1230 to which the second magnet 1120 is fixed by the repulsive force of the first magnet 1240 may also be pressed to the outside. The holder 1210 to which the mover rigid 1230 is fixed may also be pressed to the outside. Through this, the holder 1210 may press the moving plate 1300 against the housing 1110 . Through this, the moving plate 1300 may be disposed between the holder 1210 and the housing 1110 without being removed.

The mover rigid 1230 may include a protrusion 1231 . The protrusion 1231 may extend from the body portion of the mover rigid 1230 . The protrusion 1231 may be coupled to the housing 1110 by a damper 1500 . The protrusion 1231 may be disposed in the central region of the mover rigid 1230 . The protrusion 1231 may be formed in the central region of the mover rigid 1230 . The protrusion 1231 may protrude from the upper surface of the body portion of the mover rigid 1230 . The protrusion 1231 may contact the housing 1110 when the mover rigid 1230 is moved.

The protrusion 1231 may include a plurality of protrusions. The protrusion 1231 of the mover-rigid 1230 may include a first protrusion formed on the upper surface of the body portion of the mover-rigid 1230 . It may include a second protrusion formed on the lower surface of the body portion of the mover rigid 1230. At least a portion of the first protrusion of the mover rigid 1230 may be disposed in the first groove of the housing 1110 . At least a portion of the second protrusion of the mover rigid 1230 may be disposed in the second groove of the housing 1110 . The protrusion 1231 may include a first protruding area protruding to one side and a second protruding area protruding to the other side. Each of the first and second protrusion regions may be referred to as a protrusion.

The mover rigid 1230 may include a body portion. The body portion may be disposed on the opposite side of the moving plate 1300 with respect to the first portion 1111 of the housing 1110 . The mover rigid 1230 may include two coupling portions 1232 protruding from both sides of the body portion. The mover rigid 1230 may include two protrusions 1231 protruding vertically from the body.

The mover rigid 1230 may include a coupling portion 1232 . The coupling part 1232 may be a leg part. The coupling portion 1232 may extend from the body portion of the mover rigid 1230 . The coupling part 1232 may pass through the hole 1114 of the housing 1110 . The coupling part 1232 may be coupled to the holder 1210 . The coupling part 1232 may be fixed to the holder 1210 by an adhesive. At least a portion of the coupling portion 1232 may be inserted into the groove 1218 of the holder 1210 .

The reflective member driving apparatus 1000 may include a first magnet 1240 . The moving unit 1200 may include a first magnet 1240 . The first magnet 1240 may be disposed on the moving unit 1200 . The first magnet 1240 may be a first repulsive force magnet. The first magnet 1240 may be disposed on the mover rigid 1230 . The first magnet 1240 may be disposed on the body of the mover rigid 1230 . The first magnet 1240 may be disposed to face the second magnet 1120 . The first magnet 1240 may be disposed to generate a repulsive force with the second magnet 1120 . The first magnet 1240 may be disposed to face the same polarity as the second magnet 1120 . The first magnet 1240 may push the second magnet 1120 .

In this embodiment, based on the first optical axis, the central axis of the first magnet 1240 may be arranged to be eccentric with the central axis of the moving plate 1300 . In this case, the first optical axis may be the z-axis. The first optical axis may be an axis perpendicular to the sensor surface of the image sensor 3400 . The first optical axis may be an optical axis of lens groups disposed adjacent to the image sensor 3400 .

As shown in FIG. 26 , the horizontal central axis (A) of the first magnet 1240 and the second magnet 1120 is a horizontal central axis (B) of the moving plate 1300 and a longitudinal gap (G) It may be eccentrically arranged to have

When viewed from the moving plate 1300 toward the first magnet 1240 , the center of the first magnet 1240 may be arranged to be eccentric with the center of the moving plate 1300 .

Based on the facing surface, the horizontal axis passing through the central axis of the first magnet 1240 may be eccentric in the direction of the horizontal axis passing through the central axis of the moving plate 1300 and the second optical axis perpendicular to the first optical axis. In this case, the horizontal axis may be the x-axis. The horizontal axis may be disposed in a horizontal direction. The second optical axis may be a y-axis. The second optical axis may be an axis parallel to the sensor surface of the image sensor 3400 . The second optical axis may be disposed in a vertical direction. Based on the facing surface, the horizontal axis that meets or comes into contact with the central axis of the first magnet 1240 may be eccentric in the direction of the horizontal axis passing through the central axis of the moving plate 1300 and the second optical axis perpendicular to the first optical axis. . The center of the first magnet 1240 may be arranged to be eccentric in the longitudinal direction with respect to the center of the moving plate 1300 .

Based on the facing surface, the vertical axis passing through the central axis of the first magnet 1240 may not be eccentric in the direction of the vertical axis and the horizontal axis passing through the central axis of the moving plate 1300 . In this case, the horizontal axis may be the x-axis. The horizontal axis may be disposed in a horizontal direction. The second optical axis may be a y-axis. The second optical axis may be an axis parallel to the sensor surface of the image sensor 3400 . The second optical axis may be disposed in a vertical direction. The center of the first magnet 1240 may be disposed so as not to be eccentric in the horizontal direction with respect to the center of the moving plate 1300 .

Based on the facing surface, a horizontal line passing through the center of the first magnet 1240 may be vertically eccentric with a horizontal line passing through the center of the moving plate 1300 . Based on the facing surface, the vertical line passing through the center of the first magnet 1240 may not be eccentric in the horizontal direction from the vertical line passing through the center of the moving plate 1300 .

The horizontal axis of the first magnet 1240 may be disposed higher than the horizontal axis of the moving plate 1300 . As a modification, the horizontal axis of the first magnet 1240 may be disposed lower than the horizontal axis of the moving plate 1300 .

The first magnet 1240 and the second magnet 1120 may be disposed between the mover rigid 1230 and the moving plate 1300 .

The size of the first magnet 1240 may be different from the size of the second magnet 1120 . The first magnet 1240 may be formed in a size different from that of the second magnet 1120 . The size of the first magnet 1240 may be larger than the size of the second magnet 1120 . The first magnet 1240 may be formed to be larger than the second magnet 1120 .

The area of the first surface of the first magnet 1240 may be greater than the area of the second surface of the second magnet 1120 facing the first surface. The first surface and the second surface are arbitrarily referred to as one of the two surfaces, and the other may be referred to as the second surface, and both may be referred to as the first surface. The first magnet 1240 may include a first surface. The second magnet 1120 may include a first surface facing the first surface of the first magnet 1240 . The area of the first surface of the first magnet 1240 may be larger than the area of the first surface of the second magnet 1120 .

The first surface of the first magnet 1240 may include a first side. The first surface of the second magnet 1120 may include a first side disposed in a direction corresponding to the first side of the first magnet 1240 . The first side of the second magnet 1120 may be 55% to 75% of the first side of the first magnet 1240 . The first side of the second magnet 1120 may be 60% to 66% of the first side of the first magnet 1240 . The first side of the second magnet 1120 may be 62% to 64% of the first side of the first magnet 1240 . The height H1 of the first magnet 1240 may be greater than the height H2 of the second magnet 1120 . The width W1 of the first magnet 1240 may be greater than the width W2 of the second magnet 1120 .

The area of the first surface of the second magnet 1120 may be 30% to 50% of the area of the first surface of the first magnet 1240 . The area of the first surface of the second magnet 1120 may be 35% to 45% of the area of the first surface of the first magnet 1240 . The area of the first surface of the second magnet 1120 may be 38% to 42% of the area of the first surface of the first magnet 1240 .

The first magnet 1240 and the second magnet 1120 may be formed to have the same thickness. The volume of the second magnet 1120 may be 30% to 50% of the volume of the first magnet 1240 .

When viewed from the second magnet 1120 toward the first magnet 1240 , an edge region of the second magnet 1120 may be disposed within the first surface of the first magnet 1240 . The edge region may be an edge region. The edge region may be a corner. The first magnet 1240 may be disposed such that all regions of the second magnet 1120 overlap the first magnet 1240 in a first direction in which the first magnet 1240 faces the second magnet 1120 . The first magnet 1240 may be disposed such that all regions of the second magnet 1120 overlap the first magnet 1240 in the first direction in which the first magnet 1240 faces the second magnet 1120 .

As a modification, the size of the first magnet 1240 may be smaller than the size of the second magnet 1120 . The second magnet 1120 may be formed to be larger than the first magnet 1240 .

The central axes of the first magnet 1240 and the second magnet 1120 may coincide with each other. However, a tolerance of +-1% to +-2% may occur in the actual product.

In this embodiment, the second magnet 1120 may include a second surface facing the first surface of the first magnet 1240 . In this case, in a direction perpendicular to the first surface, the central axis of the first magnet 1240 may be arranged to be eccentric with the central axis of the moving plate 1300 . The area of the first surface of the first magnet 1240 may be larger than the area of the second surface of the second magnet 1120 .

In the present embodiment, in an initial state in which no current is applied to the driving unit 1400 , the moving unit 1200 may be in contact with the fixed unit 1100 . When viewed from the second magnet 1120 toward the first magnet 1240 , an edge of the first magnet 1240 may surround the second magnet 1120 . When viewed from the second magnet 1120 toward the first magnet 1240 , the second magnet 1120 may be disposed inside the corner of the first magnet 1240 .

The first magnet 1240 may include a first surface facing the second magnet 1120 and a second surface opposite to the first surface. The first surface of the first magnet 1240 may include a first side and a second side shorter than the first side. A first side of the first magnet 1240 may be formed to be 1 mm to 5 mm. The second side of the first magnet 1240 may be formed to be 0.8 mm to 4 mm. A thickness between the first and second surfaces of the first magnet 1240 may be 0.1 mm to 0.5 mm.

In this embodiment, the force Fx formed by the first driving unit 1410 may be within 7 mN. In addition, the force Fy formed by the second driver 1420 may be within 7 mN. Alternatively, the force Fx formed by the first driver 1410 may be within 3 mN. In addition, the force Fy formed by the second driver 1420 may be within 3 mN.

A first surface of the first magnet 1240 may be formed in a square shape. The first surface of the second magnet 1120 may be formed in a square shape. Alternatively, each of the first surface of the first magnet 1240 and the first surface of the second magnet 1120 may be formed in a rectangular shape. The first magnet 1240 may have a square cross-section at least in part. The second magnet 1120 may have a square cross-section at least in part. The first magnet 1240 may have a rounded edge. The second magnet 1120 may have a rounded edge.

As a modification, the first magnet 1240 may have a circular cross-section. The first magnet 1240 may be formed in a cylindrical shape. The second magnet 1120 may have a circular cross-section. The second magnet 1120 may be formed in a cylindrical shape. The first magnet 1240 may have a rounded edge. The first magnet 1240 may have a curved edge. The first magnet 1240 may be formed so that an edge has a curvature. The first magnet 1240 may have a C-cut or an R-cut edge. The second magnet 1120 may have a rounded edge. The second magnet 1120 may have a curved edge. The second magnet 1120 may be formed so that an edge has a curvature. The second magnet 1120 may have a C-cut or R-cut edge.

The reflective member driving apparatus 1000 may include a moving plate 1300 . The moving plate 1300 may be an inter-plate. The moving plate 1300 may be disposed between the housing 1110 and the holder 1210 . The moving plate 1300 may be disposed between the mover rigid 1230 and the holder 1210 . The moving plate 1300 may be disposed between the first magnet 1240 and the holder 1210 . The moving plate 1300 may be disposed between the fixed unit 1100 and the moving unit 1200 . The moving plate 1300 may be disposed between the first surface of the second magnet 1120 and the holder 1210 . The moving plate 1300 may guide the movement of the holder 1210 with respect to the housing 1110 . The moving plate 1300 may provide a tilt center of the holder 1210 . That is, the holder 1210 may be tilted around the moving plate 1300 . The moving plate 1300 may have one side disposed on the holder 1210 and the other side disposed on the housing 1110 . The moving plate 1300 may contact the holder 1210 and the housing 1110 .

The moving plate 1300 may include a first surface facing the housing 1110 and a second surface facing the holder 1210 . The first surface of the moving plate 1300 may include a plurality of first protrusions 1310 spaced apart from each other in the direction of the first axis. The second surface of the moving plate 1300 may include a plurality of second protrusions 1320 spaced apart from each other in the direction of the second axis.

The moving plate 1300 may include a plurality of first convex portions formed on one surface and a plurality of second convex portions formed on the other surface. The first convex portion may be a first protrusion 1310 . The second convex portion may be a second protrusion 1320 . The x-axis may correspond to a straight line connecting two convex parts among the plurality of first convex parts. The x-axis may coincide with or parallel to a straight line connecting two convex parts among the plurality of first convex parts. The y-axis may correspond to a straight line connecting two convex parts among the plurality of second convex parts. The y-axis may coincide with or parallel to a straight line connecting the two convex parts among the plurality of second convex parts. As a modification, the first protrusion may be the second protrusion 1320 and the second protrusion may be the first protrusion 1310 .

The moving plate 1300 may include a first protrusion 1310 . The first protrusion 1310 may be disposed on the housing 1110 . The first protrusion 1310 may be in contact with the housing 1110 . The first protrusion 1310 may be disposed in the groove 1115 of the housing 1110 . The first protrusion 1310 may provide a first axis tilt center with respect to the holder 1210 . The first protrusion 1310 may provide an x-axis tilt center with respect to the holder 1210 . The first protrusion 1310 may include two first protrusions. The two first protrusions may be spaced apart from each other in the x-axis direction. The two first protrusions may be disposed on the x-axis. The holder 1210 may be tilted around the first protrusion 1310 of the moving plate 1300 by the first driving unit 1410 . The holder 1210 may be tilted in the vertical direction based on the first protrusion 1310 of the moving plate 1300 by the first driving unit 1410 .

The first axis of the moving plate 1300 may be defined by the first protrusion 1310 of the moving plate 1300 and the groove 1115 of the housing 1110 . In this embodiment, by disposing the first protrusion 1310 of the moving plate 1300 on the housing 1110 side rather than the holder 1210 side, the center of rotation of the tilt about the first axis may be further away. Through this, the accuracy of the hall value for detecting the first axis tilt movement amount may be increased. A mechanical stroke for the x-axis tilt drive can be secured.

The moving plate 1300 may include a second protrusion 1320 . The second protrusion 1320 may be disposed on the holder 1210 . The second protrusion 1320 may be in contact with the holder 1210 . The second protrusion 1320 may be disposed in the groove 1211 of the holder 1210 . The second protrusion 1320 may provide a second axis tilt center perpendicular to the first axis with respect to the holder 1210 . The second protrusion 1320 may provide a y-axis tilt center with respect to the holder 1210 . The second protrusion 1320 may include two second protrusions. The two second protrusions may be spaced apart from each other in the y-axis direction. The two second protrusions may be disposed on the y-axis. The holder 1210 may be tilted around the second protrusion 1320 of the moving plate 1300 by the second driving unit 1420 . The holder 1210 may be tilted in the left and right directions based on the second protrusion 1320 of the moving plate 1300 by the second driving unit 1420 .

As a modification, the first protrusion 1310 of the moving plate 1300 may provide the y-axis tilt center to the holder 1210 and the second protrusion 1320 of the moving plate 1300 may provide the x-axis tilt center. have.

The reflective member driving apparatus 1000 may include grease. Grease may be disposed between the moving plate 1300 and the housing 1110 . The grease may be formed of a material different from that of the damper 1500 . The grease may be spaced apart from the damper 1500 . Grease may be distinguished from the damper 1500 . Grease may be applied in a shape different from that of the damper 1500 . Grease may be applied at a different location than the damper 1500 .

The reflective member driving apparatus 1000 may include a driving unit 1400 . The driving unit 1400 may move the moving unit 1200 with respect to the fixed unit 1100 . The driving unit 1400 may tilt the moving unit 1200 with respect to the fixed unit 1100 . The driving unit 1400 may tilt the holder 1210 . The driving unit 1400 may tilt the moving unit 1200 based on the x-axis and the y-axis perpendicular to each other of the moving plate 1300 . The driving unit 1400 may include a coil and a magnet. The driving unit 1400 may move the moving unit 1200 through electromagnetic interaction. As a modification, the driving unit 1400 may include a shape memory alloy (SMA).

The driving unit 1400 may include a first driving unit 1410 and a second driving unit 1420 . The first driving unit 1410 may include a first driving magnet 1411 and a first coil 1412 . It may include a second driving unit 1420 , a second driving magnet 1421 , and a second coil 1422 . The first driving magnet 1411 and the first coil 1412 may tilt the holder 1210 about the first axis. The second driving magnet 1421 and the second coil 1422 may tilt the holder 1210 about a second axis perpendicular to the first axis. Either one of the first driving magnet 1411 and the second driving magnet 1421 may be referred to as a third magnet, and the other may be referred to as a fourth magnet.

The driving unit 1400 may include a first driving unit 1410 . The first driving unit 1410 may tilt the moving unit 1200 about the first axis with respect to the fixed unit 1100 . The first driving unit 1410 may tilt the holder 1210 based on a first axis of the moving plate 1300 . The first driving unit 1410 may tilt the moving unit 1200 about the x-axis with respect to the fixed unit 1100 . The first driving unit 1410 may include a coil and a magnet. The first driving unit 1410 may move the moving unit 1200 through electromagnetic interaction. As a modification, the first driving unit 1410 may include a shape memory alloy (SMA).

The first driving unit 1410 may include a first driving magnet 1411 . The first driving magnet 1411 may be disposed on the holder 1210 . The first driving magnet 1411 may be disposed on the lower surface of the holder 1210 . The first driving magnet 1411 may be fixed to the holder 1210 . The first driving magnet 1411 may be fixed to the holder 1210 by an adhesive. The first driving magnet 1411 may be disposed between the holder 1210 and the lower surface of the housing 1110 . The first driving magnet 1411 may be disposed between the holder 1210 and the lower plate of the housing 1110 . The first driving magnet 1411 may move integrally with the holder 1210 . The first driving magnet 1411 may tilt the holder 1210 . The first driving magnet 1411 may tilt the holder 1210 with respect to the first axis. The first driving magnet 1411 may be disposed to face the first coil 1412 . The first driving magnet 1411 may face the first coil 1412 . The first driving magnet 1411 may be disposed at a position corresponding to the first coil 1412 . The first driving magnet 1411 may interact with the first coil 1412 . The first driving magnet 1411 may electromagnetically interact with the first coil 1412 . At least a portion of the first driving magnet 1411 may be disposed in the groove 1217 of the holder 1210 .

The first driving magnet 1411 may include a first surface in a direction toward the reflective member 1220 . The second magnet 1120 may include a first surface in a direction toward the reflective member 1220 . The first surface of the first driving magnet 1411 may include a first area closest to the second magnet 1120 . The first region of the first driving magnet 1411 may have a polarity different from that of the first surface of the second magnet 1120 . The first surface of the first driving magnet 1411 may include a second region having a polarity different from that of the first region. The first region of the first driving magnet 1411 may have an S pole and the second region may have an N pole. In this case, the first surface of the second magnet 1120 may have an N pole. As a modification, the first region of the first driving magnet 1411 may have an N pole and the second region may have an S pole.

In the present embodiment, magnetic field interference may be minimized through the arrangement of the magnet polarities of the first driving magnet 1411 and the second magnet 1120 .

The first driving magnet 1411 may include a second surface opposite to the first surface of the first driving magnet 1411 . The second surface of the first driving magnet 1411 may include a third region having a polarity different from that of the first region. The second surface of the first driving magnet 1411 may include a fourth region having a polarity different from that of the second region. The second surface of the first driving magnet 1411 may face the first coil 1412 . The third region may have an N pole and the fourth region may have an S pole. Alternatively, the third region may have an S pole and the fourth region may have an N pole.

The first driving magnet 1411 may include a neutral portion disposed between the first region and the second region. The first driving magnet 1411 may include a neutral portion disposed between the third region and the fourth region. The neutral portion may be a portion having a polarity close to neutral. The neutral portion may be a void. Alternatively, as a modification, the neutral portion may be disposed between the first region and the third region and between the second region and the fourth region.

The region of the first driving magnet 1411 closest to the first surface of the second magnet 1120 may have a polarity for generating attractive force with the first surface of the second magnet 1120 . The first surface of the second magnet 1120 and the first area of the first driving magnet 1411 closest to the first surface of the second magnet 1120 may generate attractive forces to each other.

Each of the second magnet 1120 and the first driving magnet 1411 may include a first surface facing the center of the moving unit 1200 . The first surface of the first driving magnet 1411 may include a first region and a second region having different polarities. The first surface of the second magnet 1120 may be disposed closer to the first driving magnet 1411 than the second driving magnet 1421 . The first area of the first driving magnet 1411 may be disposed closer to the second magnet 1120 than the second area. The first region of the first driving magnet 1411 may have a polarity different from that of the first surface of the second magnet 1120 .

Each of the second magnet 1120 and the first driving magnet 1411 may include a first surface facing the center of the holder 1210 . The first surface of the first driving magnet 1411 and the first surface of the second magnet 1120 may include regions having different polarities.

The first driving unit 1410 may include a first coil 1412 . The first coil 1412 may be disposed on the substrate 1130 . The first coil 1412 may be disposed in the housing 1110 . The first coil 1412 may be disposed on the substrate 1130 at a position corresponding to the first driving magnet 1411 . The first coil 1412 may be disposed under the holder 1210 . The first coil 1412 may interact with the first driving magnet 1411 . When a current is applied to the first coil 1412 , an electromagnetic field is formed around the first coil 1412 to interact with the first driving magnet 1411 . The first driving magnet 1411 and the first coil 1412 may tilt the holder 1210 with respect to the first axis. In this case, the first axis may be the x-axis.

In this embodiment, a first direction driving current may be applied to the first coil 1412 to drive the first coil 1412 . In this case, the second direction driving current opposite to the first direction driving current may not be used to drive the first coil 1412 . That is, only a current in one of a reverse direction or a forward direction may be supplied to the first coil 1412 .

The reflective member driving apparatus 1000 may include a Hall sensor 1413 . The Hall sensor 1413 may detect the first driving magnet 1411 . The Hall sensor 1413 may detect a magnetic force of the first driving magnet 1411 . The Hall sensor 1413 may detect the position of the holder 1210 . The Hall sensor 1413 may detect the position of the reflective member 1220 . The Hall sensor 1413 may detect a tilt amount with respect to the x-axis of the holder 1210 .

The reflective member driving device 1000 may include a yoke 1414 . The yoke 1414 may be disposed between the first driving magnet 1411 and the holder 1210 . The yoke 1414 may be formed in a shape corresponding to the first driving magnet 1411 . The yoke 1414 may increase the interaction force between the first driving magnet 1411 and the first coil 1412 .

The driving unit 1400 may include a second driving unit 1420 . The second driving unit 1420 may tilt the moving unit 1200 about the second axis with respect to the fixed unit 1100 . The second driving unit 1420 may tilt the holder 1210 based on a second axis perpendicular to the first axis of the moving plate 1300 . The second driving unit 1420 may tilt the moving unit 1200 about the y-axis with respect to the fixed unit 1100 . The second driving unit 1420 may include a coil and a magnet. The second driving unit 1420 may move the moving unit 1200 through electromagnetic interaction. As a modification, the second driving unit 1420 may include a shape memory alloy (SMA).

The second driving unit 1420 may include a second driving magnet 1421 . The second driving magnet 1421 may be disposed on the holder 1210 . The second driving magnet 1421 may be disposed on both sides of the holder 1210 . The second driving magnet 1421 may be fixed to the holder 1210 . The second driving magnet 1421 may be fixed to the holder 1210 by an adhesive. The second driving magnet 1421 may be disposed between the holder 1210 and a side surface of the housing 1110 . The second driving magnet 1421 may be disposed between the holder 1210 and the side plate of the housing 1110 . The second driving magnet 1421 may move integrally with the holder 1210 . The second driving magnet 1421 may tilt the holder 1210 . The second driving magnet 1421 may tilt the holder 1210 with respect to a second axis perpendicular to the first axis. The second driving magnet 1421 may be disposed to face the second coil 1422 . The second driving magnet 1421 may face the second coil 1422 . The second driving magnet 1421 may be disposed at a position corresponding to the second coil 1422 . The second driving magnet 1421 may interact with the second coil 1422 . The second driving magnet 1421 may electromagnetically interact with the second coil 1422 .

The second driving magnet 1421 may include a neutral portion having no polarity. The neutral portion may be a void. The neutral part may be disposed between the N pole and the S pole. The neutral portion may be disposed between the first portion corresponding to the front of the second driving magnet 1421 and the second portion corresponding to the rear of the second driving magnet 1421 . Alternatively, the neutral portion may be disposed between the inner portion and the outer portion of the second driving magnet 1421 .

The second driving magnet 1421 may include a first sub-magnet 1421-1. The first sub-magnet 1421-1 may be disposed on one side of the holder 1210 . The first sub-magnet 1421-1 may be disposed to face the first sub-coil 1422-1. The first sub-magnet 1421-1 may face the first sub-coil 1422-1. The first sub-magnet 1421-1 may be disposed at a position corresponding to the first sub-coil 1422-1. The first sub-magnet 1421-1 may interact with the first sub-coil 1422-1. The first sub-magnet 1421-1 may electromagnetically interact with the first sub-coil 1422-1.

The second driving magnet 1421 may include a second sub-magnet 1421 - 2 . The second sub magnet 1421 - 2 may be disposed on the other side of the holder 1210 . The second sub-magnet 1421 - 2 may be disposed opposite to the first sub-magnet 1421-1 . The second sub-magnet 1421-2 may have the same size and shape as the first sub-magnet 1421-1. The second sub magnet 1421 - 2 may be disposed to face the second sub coil 1422 - 2 . The second sub magnet 1421 - 2 may face the second sub coil 1422 - 2 . The second sub magnet 1421 - 2 may be disposed at a position corresponding to the second sub coil 1422 - 2 . The second sub magnet 1421 - 2 may interact with the second sub coil 1422 - 2 . The second sub magnet 1421 - 2 may electromagnetically interact with the second sub coil 1422 - 2 .

The second driving unit 1420 may include a second coil 1422 . The second coil 1422 may be disposed on the substrate 1130 . The second coil 1422 may be disposed in the housing 1110 . The second coil 1422 may be disposed on the second portion of the substrate 1130 . The second coil 1422 may be disposed on both sides of the holder 1210 . When a current is applied to the second coil 1422 , an electromagnetic field is formed around the second coil 1422 to interact with the second driving magnet 1421 . The second coil 1422 may include two sub-coils 1421-1 and 1421-2 disposed opposite to each other with respect to the holder 1210 . The two sub-coils 1421-1 and 1421-2 may be electrically connected to each other. The second driving magnet 1421 and the second coil 1422 may tilt the holder 1210 with respect to a second axis perpendicular to the first axis. In this case, the second axis may be a y-axis. The first axis may be an x-axis, and the z-axis may be an optical axis of the image sensor 3400 .

The second coil 1422 may include a first sub-coil 1422-1. The first sub coil 1422-1 may be disposed on the substrate 1130 . The first sub coil 1422-1 may be disposed in the housing 1110 . The first sub coil 1422-1 may be disposed on the second portion of the substrate 1130 . The first sub coil 1422-1 may be disposed on the side of the holder 1210 . When a current is applied to the first sub-coil 1422-1, an electromagnetic field is formed around the first sub-coil 1422-1 to interact with the first sub-magnet 1421-1.

The second coil 1422 may include a second sub-coil 1422 - 2 . The second sub coil 1422 - 2 may be disposed on the substrate 1130 . The second sub coil 1422 - 2 may be disposed in the housing 1110 . The second sub coil 1422 - 2 may be disposed on the second portion of the substrate 1130 . The second sub coil 1422 - 2 may be disposed on the side of the holder 1210 . When a current is applied to the second sub coil 1422 - 2 , an electromagnetic field is formed around the second sub coil 1422 - 2 to interact with the second sub magnet 1421 - 2 .

The second driving magnet 1421 includes a first sub-magnet 1421-1 disposed on a first side of the holder 1210 and a second sub-magnet 1421-2 disposed on a second side of the holder 1210. may include. The second coil 1422 includes a first sub-coil 1422-1 disposed on the substrate and disposed at a position corresponding to the first sub-magnet 1421-1, and a second sub-magnet 1421-2 disposed on the substrate. ) and a second sub-coil 1422 - 2 disposed at a position corresponding to it may be included.

The reflective member driving apparatus 1000 may include a Hall sensor 1423 . The hall sensor 1423 may detect the second driving magnet 1421 . The Hall sensor 1423 may detect a magnetic force of the second driving magnet 1421 . The Hall sensor 1423 may detect the position of the holder 1210 . The Hall sensor 1423 may detect the position of the reflective member 1220 . The Hall sensor 1423 may detect a tilt amount with respect to the y-axis of the holder 1210 .

The reflective member driving device 1000 may include a yoke 1424 . The yoke 1424 may be disposed between the second driving magnet 1421 and the holder 1210 . The yoke 1424 may be formed in a shape corresponding to the second driving magnet 1421 . The yoke 1424 may increase the interaction force between the second driving magnet 1421 and the second coil 1422 .

The reflective member driving apparatus 1000 may include a damper 1500 . The damper 1500 may include an adhesive material. The damper 1500 may have viscosity. The damper 1500 may be disposed between the fixed part 1100 and the moving part 1200 . The damper 1500 may be disposed between the mover rigid 1230 and the housing 1110 . The damper 1500 may connect the mover rigid 1230 and the housing 1110 . The damper 1500 may be coupled to the mover rigid 1230 and the housing 1110 . The damper 1500 may be disposed on the mover rigid 1230 . The damper 1500 may be combined with the mover rigid 1230 . The damper 1500 may be coupled to the mover rigid 1230 . The mover rigid 1230 may be coupled to the housing 1110 . The housing 1110 and the mover rigid 1230 may be adhered to each other by the damper 1500 .

The damper 1500 may be disposed on at least one of an upper portion and a lower portion of the first portion 1111 of the housing 1110 . The damper 1500 may connect the protrusion 1231 of the mover rigid 1230 and the housing 1110 . At least a portion of the damper 1500 may be disposed between the protrusion 1231 of the mover rigid 1230 and the housing 1110 in the groove 1119 of the housing 1110 . At least a portion of the damper 1500 may be disposed in a second groove recessed from the first groove portion of the housing 1110 .

In the present embodiment, a gel component bond serving as a damper may be applied between the housing 1110 and the mover rigid 1230 . Through this, it is possible to increase the responsiveness of the actuator by securing a phase margin while maintaining a gain value. That is, the FRA characteristics may be improved. In particular, a response characteristic of a tilt with respect to the x-axis may be improved. Tilt about the y-axis (yaw) can also be improved.

30 and 31 are views for explaining a tilt with respect to the x-axis of the reflective member driving apparatus according to the present embodiment.

In the present embodiment, the holder 1210 may be disposed between the upper plate and the lower plate of the housing 1110 in an initial state in which current is not supplied to the first driving unit 1410 . In this case, the holder 1210 may be in contact with the upper plate of the housing 1110 (see FIG. 30 ).

At this time, when a current in the first direction is applied to the first coil 1412 , the holder 1210 is moved by the electromagnetic interaction between the first coil 1412 and the first driving magnet 1411 of the moving plate 1300 . The first protrusion 1310 may be tilted downward (see θ in FIG. 31 ).

That is, current is applied to the first coil 1412 so that the holder 1210 may be tilted downward with respect to the housing 1110 about the x-axis. At this time, since the reflective member 1220 is also tilted together with the holder 1210 , the optical path is changed so that the shaking sensed by the gyro sensor 1150 may be offset.

In the present embodiment, only the current in the first direction may be used to control the first coil 1412 and the current in the first direction opposite to the first direction may not be used. Through this, the problem of removing the moving plate 1300 that may occur when the current in the second direction is applied to the first coil 1412 can be fundamentally blocked.

In more detail, as a comparative example, when the centers of the first magnet 1240 and the second magnet 1120 are disposed at the same height as the first protrusion 1310 of the moving plate 1300, the first magnet 1240 and the second magnet 1240 If the repulsive force between the two magnets 1120 and the electromagnetic force between the first coil 1412 and the first driving magnet 1411 are non-uniform, the moving part 1200 slides by the electromagnetic force and the moving plate 1300 can be removed. have. When the electromagnetic force between the first coil 1412 and the first driving magnet 1411 is greater than the repulsive force between the first magnet 1240 and the second magnet 1120 , the mover rigid 1230 is the first magnet 1240 . and the second magnet 1120 may fall out by the gap between the moving plate 1300 and the moving plate 1300 . This may cause poor hall calibration dynamic characteristics.

In the present embodiment, the center axis of the repulsive force and the x-axis driving center axis may be shifted by a certain distance. Through this, the reflective member 1220 may be mechanically shifted upward. In this case, the upward direction may be a direction opposite to gravity.

In this embodiment, the current control may be controlled by a code (code). In the pivot structure like this embodiment, it is difficult to know the initial position in the open state due to sagging due to gravity, etc. control method) may be required. In the present embodiment, since it is controlled in a closed manner, more precise driving can be performed. Furthermore, in the present embodiment, noise generated by moving the moving unit 1200 back and forth by the closed method can also be minimized.

32 to 34 are views for explaining a tilt about the y-axis of the reflective member driving apparatus according to the present embodiment.

In the present embodiment, the holder 1210 may be disposed between both sides of the housing 1110 in an initial state in which current is not supplied to the second driving unit 1420 . In this case, the holder 1210 may be spaced apart from both sides of the housing 1110 (see FIG. 32 ).

At this time, when a current in the first direction is applied to the second coil 1422 , the holder 1210 is moved by the electromagnetic interaction between the second coil 1422 and the second driving magnet 1421 of the moving plate 1300 . The second protrusion 1320 may be tilted to one side (see FIG. 33 a).

On the other hand, when a current in a second direction opposite to the first direction is applied to the second coil 1422 , the holder 1210 is moved by electromagnetic interaction between the second coil 1422 and the second driving magnet 1421 . It may be tilted to the other side with respect to the second protrusion 1320 of the moving plate 1300 (see FIG. 34 b).

That is, current is selectively applied to the second coil 1422 in both directions so that the holder 1210 can be tilted in the left and right directions with respect to the housing 1110 about the y-axis. At this time, since the reflective member 1220 is also tilted together with the holder 1210 , the optical path is changed so that the shaking sensed by the gyro sensor 1150 may be offset. Therefore, in the present embodiment, hand shake correction for the x-axis tilt and the y-axis tilt, that is, the two-axis tilt, may be performed.

Hereinafter, a lens driving device according to the present embodiment will be described with reference to the drawings.

Fig. 35 is a perspective view of the lens driving device according to the present embodiment, Fig. 36 is a perspective view omitting a part of the lens driving device according to the present embodiment, and Fig. 37 is another view of the lens driving device in the state shown in Fig. 36 It is a perspective view viewed from the direction, FIG. 38 is a perspective view in which some components of the lens driving device according to the present embodiment are omitted, and FIG. 40 is a perspective view of a state in which the first lens and related components are omitted in the lens driving device of the state shown in FIG. 39, and FIG. 42 is a view for explaining the arrangement structure of a coil and a sensor of the lens driving device according to the present embodiment, and FIG. 43 is a perspective view of the lens driving device of the state shown in FIG. 39 in which the second housing is omitted. 44 is a perspective view of a state in which the guide rail is omitted from the lens driving device of the state shown in FIG. 43 , FIG. 45 is an enlarged view of a partial configuration of the lens driving device according to the present embodiment, and FIG. 46 is this embodiment A perspective view of a first moving part and a second moving part and a related configuration of the lens driving device according to an example, FIG. 47 is a perspective view of the second moving part and related configuration of the lens driving device according to the present embodiment, and FIG. An exploded perspective view of the lens driving device according to the embodiment, FIG. 49 is a perspective view of a second housing of the lens driving device according to the present embodiment, and FIGS. 50 and 51 are exploded views of a part of the lens driving device according to the present embodiment It is a perspective view, and FIG. 52 is a cross-sectional view of the lens driving device according to the present embodiment.

The lens driving device 2000 may perform a zoom function. The lens driving device 2000 may perform a continuous zoom function. The lens driving apparatus 2000 may perform an auto focus (AF) function. The lens driving device 2000 may move the lens. The lens driving device 2000 may move the lens along an optical axis. The lens driving device 2000 may move lenses formed in a plurality of groups for each group. The lens driving device 2000 may move the second group lens. The lens driving device 2000 may move the third group lens. The lens driving device 2000 may be a lens actuator. The lens driving device 2000 may be an AF actuator. The lens driving device 2000 may be a zoom actuator. The lens driving device 2000 may include a voice coil motor (VCM).

The lens driving device 2000 may include a lens. Alternatively, the lens may be described as one configuration of the camera device 10 instead of one configuration of the lens driving device 2000 . The lens may be disposed in an optical path formed by the reflective member 1220 and the image sensor 3400 of the reflective member driving apparatus 1000 . The lens may include a plurality of lenses. The plurality of lenses may form a plurality of groups. The lenses may form three groups. The lens may include first to third group lenses. A first group lens, a second group lens, and a third group lens may be sequentially disposed between the reflective member 1220 and the image sensor 3400 . The first group of lenses may include a first lens 2120 . The second group of lenses may include a second lens 2220 . The third group of lenses may include a third lens 2320 .

The lens driving device 2000 may include a fixing unit 2100 . The fixed part 2100 may be a relatively fixed part when the first moving part 2200 and the second moving part 2300 move.

The lens driving device 2000 may include a housing 2110 . The fixing part 2100 may include a housing 2110 . The housing 2110 may be disposed outside the first holder 2210 and the second holder 2310 . The housing 2110 may accommodate at least a portion of the first holder 2210 and the second holder 2310 . The housing 2110 may include a front plate, a rear plate, and a plurality of connection plates. In this case, the front plate may be called an upper plate, the rear plate may be called a lower plate, and the connecting plate may be called a side plate.

The housing 2110 may include a first housing 2110-1. The first housing 2110-1 may form a front plate of the housing 2110. The first housing 2110-1 may be coupled to the first lens 2120. The first housing 2110-1 may be a cover. The first housing 2110-1 may be coupled to the reflective member driving device 1000 . A first lens 2120 may be fixed to the first housing 2110-1.

The housing 2110 may include a second housing 2110 - 2 . The second housing 2110 - 2 may form a rear plate and a connection plate of the housing 2110 . The second housing 2110 - 2 may be opened forward. The first housing 2110-1 may be coupled to the front of the second housing 2110-2. A portion of the guide rail 2130 may be disposed between the first housing 2110-1 and the second housing 2110-2.

The housing 2110 may include a first groove 2111 . The first groove 2111 may be coupled to the protrusion 1116 of the housing 1110 of the reflective member driving apparatus 1000 . The first groove 2111 may be formed in a shape corresponding to the protrusion 1116 of the reflective member driving apparatus 1000 . An adhesive for coupling the reflective member driving device 1000 to the lens driving device 2000 may be disposed in the first groove 2111 .

The housing 2110 may include a second groove 2112 . The second groove 2112 may be coupled to the protrusion 1117 of the housing 1110 of the reflective member driving device 1000 . The protrusion 1117 of the reflective member driving device 1000 may be inserted into the second groove 2112 . The second groove 2112 may be formed in a shape corresponding to the protrusion 1117 of the reflective member driving apparatus 1000 . An adhesive for coupling the reflective member driving device 1000 to the lens driving device 2000 may be disposed in the second groove 2112 .

The housing 2110 may include a first hole 2113 . The first hole 2113 may expose the protrusion 2211 of the first holder 2210 and the protrusion 2311 of the second holder 2310 . The first hole 2113 may be formed in the connection plate of the housing 2110 . In the manufacturing test step, the protrusion 2211 of the first holder 2210 and the protrusion 2311 of the second holder 2310 exposed through the first hole 2113 are checked to determine the normality of the lens driving device 2000 . You can check if it works.

The housing 2110 may include a plate 2113 - 1 . The plate 2113 - 1 may cover the first hole 2113 . The plate 2113 - 1 may be disposed in the first hole 2113 to close the first hole 2113 .

The housing 2110 may include a second hole 2114 . The second hole 2114 may be a coil receiving hole in which the first coil 2412 and the second coil 2422 are disposed. A first coil 2412 and a second coil 2422 may be disposed in the second hole 2114 . The second hole 2114 may be formed to be larger than the first coil 2412 and the second coil 2422 .

The housing 2110 may include a protrusion 2115 . The protrusion 2115 may be formed on the second housing 2110 - 2 . The protrusion 2115 may be formed as a two-stage protrusion. The protrusion 2115 may be coupled to the guide rail 2130 . The protrusion 2115 may be coupled to the first housing 2110-1. The guide rail 2130 may be coupled to a portion of the protrusion 2115 having a large diameter, and the first housing 2110-1 may be coupled to a portion having a small diameter of the protrusion 2115 .

The protrusion 2115 may include a first protrusion 2115 - 1 . The first protrusion 2115 - 1 may include a first portion having a first diameter D2 and a second portion protruding from the first portion and having a second diameter D1 . The protrusion 2115 may include a second protrusion 2115 - 2 . The second protrusion 2115 - 2 may include a third portion having a third diameter D3 and a fourth portion protruding from the third portion and having a fourth diameter D4 . In this case, the fourth diameter D4 may be smaller than the second diameter D1. Through this, the first protrusion 2115-1 may be more tightly coupled to the first housing 2110-1 than the second protrusion 2115-2.

The housing 2110 may include a guide protrusion 2116 . The guide protrusion 2116 may be formed on the inner surface of the housing 2110 . The guide protrusion 2116 may be formed in a shape corresponding to the shape of at least a portion of the first holder 2210 and the second holder 2310 . Through this, the guide protrusion 2116 may guide the movement of the first holder 2210 and the second holder 2310 in the optical axis direction. In this case, the optical axis direction may be a z-axis direction perpendicular to the x-axis and the y-axis. The guide protrusion 2116 may be disposed in the optical axis direction. The guide protrusion 2116 may extend in the optical axis direction.

The housing 2110 may include a groove 2117 . The groove 2117 may be formed in the first housing 2110-1. The groove 2117 of the first housing 2110-1 may be coupled to the protrusion 2115 of the second housing 2110-2.

The housing 2110 may include a protrusion 2118 . The protrusion 2118 may be coupled to the substrate 2140 . The protrusion 2118 may be inserted into the groove of the substrate 2140 . The protrusion 2118 may be formed to have a corresponding size and shape to fit into the groove of the substrate 2140 .

The housing 2110 may include a vent hole 2119 . The vent hole 2119 may be formed in the rear plate of the housing 2110 . The vent hole 2119 may form a gap between the housing 2110 and the dummy glass 2600 . Air may flow into the gap between the housing 2110 and the dummy glass 2600 . A gas generated during the curing process of the adhesive may escape through the vent hole 2119 .

The lens driving device 2000 may include a first lens 2120 . Alternatively, the first lens 2120 may be described as one configuration of the camera device 10 rather than one configuration of the lens driving device 2000 . The fixing unit 2100 may include a first lens 2120 . The first lens 2120 may be disposed on the optical axis. The first lens 2120 may be disposed between the reflective member 1220 and the image sensor 3400 . The first lens 2120 may be disposed between the reflective member 1220 and the second lens 2220 . The first lens 2120 may be disposed in the first housing 2110-1. The first lens 2120 may be fixed to the first housing 2110-1. The first lens 2120 may maintain a fixed state even when the second lens 2220 and the third lens 2320 move.

The first lens 2120 may be a first group lens. The first lens 2120 may include a plurality of lenses. The first lens 2120 may include three lenses.

The lens driving device 2000 may include a guide rail 2130 . The fixing part 2100 may include a guide rail 2130 . The guide rail 2130 may be coupled between the first housing 2110-1 and the second housing 2110-2. The guide rail 2130 may guide the movement of the first holder 2210 and the second holder 2310 . The rail 2130 may guide the first holder 2210 and the second holder 2310 to move in the optical axis direction. The guide rail 2130 may include a rail disposed in the optical axis direction. The guide rail 2130 may include a rail extending in the optical axis direction. The guide rail 2130 may include a rail formed so that the ball 2500 rolls.

The lens driving device 2000 may include a substrate 2140 . The fixing part 2100 may include a substrate 2140 . The substrate 2140 may be disposed on both sides of the housing 2110 . The substrate 2140 may be an FPCB. A first coil 2412 and a second coil 2422 may be disposed on the substrate 2140 .

The substrate 2140 may include a first region 2140-1. The first region 2140-1 may be formed at an end of the substrate 2140. A terminal may be disposed in the first region 2140-1. The substrate 2140 may include a second region 2140 - 2 . The first region 2140-1 of the substrate 2140 may be bent inward with respect to the second region 2140-2. Through this, the size of the printed circuit board 3300 can be minimized while securing a soldering arrangement area connecting the terminals of the board 2140 and the printed circuit board 3300 . The first region 2140-1 may form an obtuse angle with the second region 2140-2.

The substrate 2140 may include a first substrate 2141 . The first substrate 2141 may be disposed on one side of the housing 2110 . A first coil 2412 may be disposed on the first substrate 2141 . First and second Hall sensors 2413 and 2414 may be disposed on the first substrate 2141 .

The substrate 2140 may include a second substrate 2142 . The second substrate 2142 may be disposed on the other side of the housing 2110 . The second substrate 2142 may be disposed opposite to the first substrate 2141 . A second coil 2422 may be disposed on the second substrate 2142 . Third and fourth Hall sensors 2423 and 2424 may be disposed on the second substrate 2142 .

The lens driving device 2000 may include a SUS 2145 . The suspension 2145 may be disposed on the substrate 2140 . The suspension 2145 may reinforce the strength of the substrate 2140 . The suspension 2145 may dissipate heat generated by the substrate 2140 .

The lens driving device 2000 may include an EEPROM 2150 . The EEPROM 2150 may be electrically connected to the first coil 2412 and the second coil 2422 . The EEPROM 2150 may be used to control currents applied to the first coil 2412 and the second coil 2422 before connecting the lens driving device 2000 to the driver IC 3900 in the manufacturing stage. That is, the EEPROM 2150 may be used to test whether the lens driving device 2000 operates normally. The EEPROM 2150 may be disposed on the inner surface of the substrate 2140 .

The lens driving device 2000 may include a first moving unit 2200 . The first moving unit 2200 may move with respect to the fixed unit 2100 . At least a portion of the first moving part 2200 may be disposed between the fixed part 2100 and the second moving part 2300 . The first moving part 2200 may move between the fixed part 2100 and the second moving part 2300 .

The lens driving device 2000 may include a first holder 2210 . The first moving unit 2200 may include a first holder 2210 . The first holder 2210 may be disposed in the housing 2110 . The first holder 2210 may move with respect to the housing 2110 . At least a portion of the first holder 2210 may be spaced apart from the housing 2110 . The first holder 2210 may be in contact with the housing 2110 . The first holder 2210 may be in contact with the housing 2110 during movement. Alternatively, in the initial state, the first holder 2210 may be in contact with the housing 2110 .

The first holder 2210 may include a protrusion 2211 . The protrusion 2211 may be a test protrusion. The protrusion 2211 may be formed on the outer surface of the first holder 2210 . The protrusion 2211 may protrude from the first holder 2210 . The protrusion 2211 may be seen from the outside through the first hole 2113 of the housing 2110 . The protrusion 2211 may be used to test whether the lens driving device 2000 operates normally. The protrusion 2211 may include a flat surface 2211-1 and an inclined surface 2211-2.

The first holder 2210 may include a rail groove 2212 . A ball 2500 may be disposed in the rail groove 2212 . In the rail groove 2212, the ball 2500 may roll. The rail groove 2212 and the ball 2500 may contact each other at two points. The rail groove 2212 may be disposed in the optical axis direction. The rail groove 2212 may extend in the optical axis direction.

The rail groove 2212 may include a plurality of rail grooves. The rail groove 2212 may include four rail grooves. The rail groove 2212 may include first to fourth rail grooves. One or more balls 2500 may be disposed in each of the plurality of rail grooves 2212 .

The first holder 2210 may include a protrusion 2213 . The protrusion 2213 may be formed on a surface of the first holder 2210 facing the first housing 2110-1. The protrusion 2213 may come into contact with the first housing 2110-1 when the first holder 2210 moves in a direction closer to the first housing 2110-1. In this case, when the protrusion 2213 is formed, the contact area between the first holder 2210 and the first housing 2110-1 may be reduced compared to the case where the protrusion 2213 is omitted. Through this, the impact and noise generated due to the contact between the first holder 2210 and the first housing 2110-1 can be minimized.

The lens driving device 2000 may include a second lens 2220 . Alternatively, the second lens 2220 may be described as one configuration of the camera device 10 rather than one configuration of the lens driving device 2000 . The first moving unit 2200 may include a second lens 2220 . The second lens 2220 may be disposed on the optical axis. The second lens 2220 may be disposed between the reflective member 1220 and the image sensor 3400 . The second lens 2220 may be disposed between the first lens 2120 and the third lens 2320 . The second lens 2220 may be disposed in the first holder 2210 . The second lens 2220 may be coupled to the first holder 2210 . The second lens 2220 may be fixed to the first holder 2210 . The second lens 2220 may move with respect to the first lens 2120 . The second lens 2220 may move separately from the third lens 2320 .

The second lens 2220 may be a second group lens. The second lens 2220 may include a plurality of lenses. The second lens 2220 may include two lenses.

The lens driving device 2000 may include a second moving unit 2300 . The second moving part 2300 may move with respect to the fixed part 2100 . The second moving unit 2300 may move separately from the first moving unit 2200 . The second moving part 2300 may be disposed behind the first moving part 2200 . The second moving unit 2300 may move in a direction closer to and away from the first moving unit 2200 .

The lens driving device 2000 may include a second holder 2310 . The second moving unit 2300 may include a second holder 2310 . The second holder 2310 may be disposed in the housing 2110 . The second holder 2310 may move with respect to the housing 2110 . At least a portion of the second holder 2310 may be spaced apart from the housing 2110 . The second holder 2310 may be in contact with the housing 2110 . The second holder 2310 may come into contact with the housing 2110 when moving. Alternatively, in the initial state, the second holder 2310 may be in contact with the housing 2110 . The second holder 2310 may be in contact with the first holder 2210 . The second holder 2310 may be spaced apart from the first holder 2210 . The second holder 2310 may come into contact with the first holder 2210 when moving. Alternatively, in the initial state, the second holder 2310 may be in contact with the first holder 2210 .

The second holder 2310 may include a protrusion 2311 . The protrusion 2311 may be a test protrusion. The protrusion 2311 may be formed on the outer surface of the second holder 2310 . The protrusion 2311 may protrude from the second holder 2310 . The protrusion 2311 may be seen from the outside through the first hole 2113 of the housing 2110 . The protrusion 2311 may be used when testing whether the lens driving device 2000 operates normally. The protrusion 2311 may include a flat surface 2311 - 1 and an inclined surface 2311 - 2 .

The second holder 2310 may include a rail groove 2312 . A ball 2500 may be disposed in the rail groove 2312 . In the rail groove 2312, the ball 2500 may roll. The rail groove 2312 and the ball 2500 may contact each other at two points. The rail groove 2312 may be disposed in the optical axis direction. The rail groove 2312 may extend in the optical axis direction.

The rail groove 2312 may include a plurality of rail grooves. The rail groove 2312 may include four rail grooves. The rail groove 2312 may include first to fourth rail grooves. One or more balls 2500 may be disposed in each of the plurality of rail grooves 2312 .

The second holder 2310 may include a protrusion 2313 . The protrusion 2313 may be formed on a surface facing the first holder 2210 of the second holder 2310 . The protrusion 2313 may come into contact with the first holder 2210 when the second holder 2310 moves in a direction closer to the first holder 2210 . In this case, when the protrusion 2313 is formed, the contact area between the second holder 2310 and the first holder 2210 may be reduced compared to the case where the protrusion 2313 is omitted. Through this, shock and noise generated due to the contact between the second holder 2310 and the first holder 2210 can be minimized.

The lens driving device 2000 may include a third lens 2320 . Alternatively, the third lens 2320 may be described as one configuration of the camera device 10 rather than one configuration of the lens driving device 2000 . The second moving unit 2300 may include a third lens 2320 . The third lens 2320 may be disposed on the optical axis. The third lens 2320 may be disposed between the reflective member 1220 and the image sensor 3400 . The third lens 2320 may be disposed between the second lens 2220 and the image sensor 3400 . The third lens 2320 may be disposed in the second holder 2310 . The third lens 2320 may be coupled to the second holder 2310 . The third lens 2320 may be fixed to the second holder 2310 . The third lens 2320 may move with respect to the first lens 2120 . The third lens 2320 may move separately from the second lens 2220 .

The third lens 2320 may be a third group lens. The third lens 2320 may include a plurality of lenses. The third lens 2320 may include two lenses.

The lens driving device 2000 may include a driving unit 2400 . The driving unit 2400 may move at least some of the plurality of lenses. The driving unit 2400 may move the first moving unit 2200 and the second moving unit 2300 with respect to the fixed unit 2100 . The driving unit 2400 may include a coil and a magnet. The driving unit 2400 may move the first moving unit 2200 and the second moving unit 2300 through electromagnetic interaction. As a modification, the driving unit 2400 may include a shape memory alloy.

The driving unit 2400 may include a first driving unit 2410 . The first driving unit 2410 may move the first moving unit 2200 with respect to the fixing unit 2100 . The first driving unit 2410 may move the first moving unit 2200 with respect to the second moving unit 2300 . The first driver 2410 may be used to drive a zoom function. Alternatively, the first driver 2410 may be used to drive the auto focus function.

The first driving unit 2410 may include a first driving magnet 2411 . The first driving magnet 2411 may be disposed in the first holder 2210 . The first driving magnet 2411 may be disposed on a side surface of the first holder 2210 . The first driving magnet 2411 may be coupled to the first holder 2210 . The first driving magnet 2411 may be fixed to the first holder 2210 . The first driving magnet 2411 may be fixed to the first holder 2210 by an adhesive. The first driving magnet 2411 may move integrally with the first holder 2210 . The first driving magnet 2411 may be disposed to face the first coil 2412 . The first driving magnet 2411 may face the first coil 2412 . The first driving magnet 2411 may be disposed at a position corresponding to the first coil 2412 . The first driving magnet 2411 may interact with the first coil 2412 . The first driving magnet 2411 may electromagnetically interact with the first coil 2412 .

The first driving magnet 2411 may include a first magnet unit 2411 - 1 . The first magnet unit 2411 - 1 may have a first polarity. The first driving magnet 2411 may include a second magnet unit 2411 - 2 . The second magnet unit 2411 - 2 may have a second polarity different from the first polarity. In this case, the first polarity may be an N pole and the second polarity may be an S pole. Conversely, the first polarity may be an S pole and the second polarity may be an N pole.

The first driving magnet 2411 may include a neutral part 2411-3. The neutral part 2411-3 may be disposed between the first magnet part 2411-1 and the second magnet part 2411-2. The neutral portion 2411-3 may have a neutral polarity. The neutral portion 2411-3 may be a non-magnetized portion.

The first driving unit 2410 may include a first coil 2412 . The first coil 2412 may be disposed on the substrate 2140 . The first coil 2412 may be disposed on the first substrate 2141 . The first coil 2412 may be disposed in the housing 2110 . The first coil 2412 may be disposed outside the first holder 2210 . When a current is applied to the first coil 2412 , an electromagnetic field is formed around the first coil 2412 to interact with the first driving magnet 2411 .

Alternatively, the first coil 2412 may be disposed on the first holder 2210 , and the first driving magnet 2411 may be disposed on the housing 2110 .

The first coil 2412 may be formed in a ring shape. The first coil 2412 may be formed as a square ring or a circular ring. Even when the first coil 2412 is formed in a rectangular ring shape, the corner portion may be formed to be curved. The first coil 2412 may include a first portion 2412 - 1 and a second portion 2412 - 2 having a gap G1 therebetween. First and second Hall sensors 2413 and 2414 may be disposed in the gap G1 of the first coil 2412 .

The lens driving device 2000 may include a Hall sensor. The Hall sensor may detect the first driving magnet 2411 . The Hall sensor may include a plurality of Hall sensors. The Hall sensor may include a first Hall sensor 2413 and a second Hall sensor 2414 . The first Hall sensor 2413 and the second Hall sensor 2414 may be spaced apart from each other. The first Hall sensor 2413 and the second Hall sensor 2414 may be spaced apart to form a gap G2 therebetween. The first Hall sensor 2413 and the second Hall sensor 2414 may detect the first driving magnet 2411 . The first Hall sensor 2413 and the second Hall sensor 2414 may detect a magnetic force of the first driving magnet 2411 . The first Hall sensor 2413 and the second Hall sensor 2414 may detect the position of the first holder 2210 . The first Hall sensor 2413 and the second Hall sensor 2414 may detect the position of the second lens 2220 .

The lens driving device 2000 may include a yoke 2415 . The yoke 2415 may be disposed between the first driving magnet 2411 and the first holder 2210 . The yoke 2415 may be formed in a shape corresponding to the first driving magnet 2411 . The yoke 2415 may increase the interaction force between the first driving magnet 2411 and the first coil 2412 .

The yoke 2415 may include an extension 2415 - 1 . The extension 2415 - 1 may surround the front and rear surfaces of the first driving magnet 2411 . The yoke 2415 may include a groove 2415 - 2 . The groove 2415 - 2 may be formed in the center of the body portion of the yoke 2415 .

The driving unit 2400 may include a second driving unit 2420 . The second driving unit 2420 may move the second moving unit 2300 with respect to the fixing unit 2100 . The second driving unit 2420 may move the second moving unit 2300 with respect to the first moving unit 2200 . The second driver 2420 may be used to drive an autofocus function. Alternatively, the second driver 2420 may be used to drive the zoom function.

The second driving unit 2420 may include a second driving magnet 2421 . The second driving magnet 2421 may be disposed in the second holder 2310 . The second driving magnet 2421 may be disposed on a side surface of the second holder 2310 . The second driving magnet 2421 may be coupled to the second holder 2310 . The second driving magnet 2421 may be fixed to the second holder 2310 . The second driving magnet 2421 may be fixed to the second holder 2310 by an adhesive. The second driving magnet 2421 may move integrally with the second holder 2310 . The second driving magnet 2421 may be disposed to face the second coil 2422 . The second driving magnet 2421 may face the second coil 2422 . The second driving magnet 2421 may be disposed at a position corresponding to the second coil 2422 . The second driving magnet 2421 may interact with the second coil 2422 . The second driving magnet 2421 may electromagnetically interact with the second coil 2422 .

The second driving unit 2420 may include a second coil 2422 . The second coil 2422 may be disposed on the substrate 2140 . The second coil 2422 may be disposed on the second substrate 2142 . The second coil 2422 may be disposed in the housing 2110 . The second coil 2422 may be disposed outside the second holder 2310 . When a current is applied to the second coil 2422 , an electromagnetic field is formed around the second coil 2422 to interact with the second driving magnet 2421 .

Alternatively, the second coil 2422 may be disposed on the second holder 2310 and the second driving magnet 2421 may be disposed on the housing 2110 .

The lens driving device 2000 may include a Hall sensor. The Hall sensor may detect the second driving magnet 2421 . The Hall sensor may include a plurality of Hall sensors. The Hall sensor may include a third Hall sensor 2423 and a fourth Hall sensor 2424 . The third Hall sensor 2423 and the fourth Hall sensor 2424 may be spaced apart from each other. The third Hall sensor 2423 and the fourth Hall sensor 2424 may be spaced apart to form a gap G2 therebetween. The third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the second driving magnet 2421 . The third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the magnetic force of the second driving magnet 2421 . The third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the position of the second holder 2310 . The third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the position of the third lens 2320 .

The lens driving device 2000 may include a yoke 2425 . The yoke 2425 may be disposed between the second driving magnet 2421 and the second holder 2310 . The yoke 2425 may be formed in a shape corresponding to the second driving magnet 2421 . The yoke 2425 may increase the interaction force between the second driving magnet 2421 and the second coil 2422 .

The lens driving device 2000 may include a first yoke 2430 . The first yoke 2430 may be disposed such that an attractive force acts between the first yoke 2430 and the first driving magnet 2411 . The first yoke 2430 may be disposed in the housing 2110 . The first yoke 2430 may be disposed on the substrate 2140 . The first yoke 2430 may be disposed on the first substrate 2141 . The first holder 2210 may press the ball 2500 toward the guide rail 2130 by the attractive force between the first driving magnet 2411 and the first yoke 2430 . That is, the ball 2500 may be maintained between the first holder 2210 and the guide rail 2130 without being separated by the attractive force between the first driving magnet 2411 and the first yoke 2430 .

The lens driving device 2000 may include a second yoke 2440 . The second yoke 2440 may be disposed such that an attractive force acts between the second yoke 2440 and the second driving magnet 2421 . The second yoke 2440 may be disposed in the housing 2110 . The second yoke 2440 may be disposed on the substrate 2140 . The second yoke 2440 may be disposed on the second substrate 2142 . The second holder 2310 may press the ball 2500 toward the guide rail 2130 by the attractive force between the second driving magnet 2421 and the second yoke 2440 . That is, the ball 2500 may be maintained between the second holder 2310 and the guide rail 2130 without being separated by the attractive force between the second driving magnet 2421 and the second yoke 2440 .

The lens driving device 2000 may include a ball 2500 . The ball 2500 may guide the movement of the first holder 2210 . The ball 2500 may be disposed between the first holder 2210 and the guide rail 2130 . The ball 2500 may guide the movement of the second holder 2310 . The ball 2500 may be disposed between the second holder 2310 and the guide rail 2130 . The ball 2500 may be formed in a spherical shape. The ball 2500 may roll the rail groove 2212 of the first holder 2210 and the rail 2133 of the guide rail 2130 . The ball 2500 may move in the optical axis direction between the rail groove 2212 of the first holder 2210 and the rail 2133 of the guide rail 2130 . The ball 2500 may roll the rail groove 2312 of the second holder 2310 and the rail 2133 of the guide rail 2130 . The ball 2500 may move in the optical axis direction between the rail groove 2312 of the second holder 2310 and the rail 2133 of the guide rail 2130 . The ball 2500 may include a plurality of balls. The ball 2500 may be provided in a total of eight, four in the first holder 2210 and four in the second holder 2310 .

The lens driving device 2000 may include a dummy glass 2600 . The dummy glass 2600 may be disposed in the housing 2110 . The dummy glass 2600 may close the rear opening of the housing 2110 . The dummy glass 2600 may be formed to be transparent to allow light to pass therethrough.

The lens driving device 2000 may include a poron 2700 . The poron 2700 may be a shock absorbing member. The poron 2700 may minimize the shock and noise generated by the movement of the first holder 2210 and the second holder 2310 . The poron 2700 may be disposed at a portion where the first holder 2210 collides with the housing 2110 . The poron 2700 may be disposed at a portion where the second holder 2310 collides with the housing 2110 .

53 to 55 are diagrams for explaining implementation of a zoom function and an autofocus function of the lens driving apparatus according to the present embodiment.

In this embodiment, the first lens 2120 , the second lens 2220 , and the third lens 2320 may be arranged in a state aligned with the optical axis OA in an initial state in which no current is supplied to the driving unit 2400 . There is (see FIG. 53).

At this time, when a current is applied to the first coil 2412 , the second lens 2220 may move along the optical axis OA due to electromagnetic interaction between the first coil 2412 and the first driving magnet 2411 . There is (see FIG. 54 a). As the second lens 2220 moves while the first lens 2120 is fixed, a zoom function may be performed. When a current in the first direction is applied to the first coil 2412 , the second lens 2220 may move in a direction closer to the first lens 2120 . When a current in a second direction opposite to the first direction is applied to the first coil 2412 , the second lens 2220 may move in a direction away from the first lens 2120 .

On the other hand, when a current is applied to the second coil 2422, the third lens 2320 may move along the optical axis OA due to electromagnetic interaction between the second coil 2422 and the second driving magnet 2421. There is (see FIG. 55 b). An autofocus (AF) function may be performed by relative movement of the third lens 2320 with respect to the first lens 2120 and the second lens 2220 . When a current in the first direction is applied to the second coil 2422 , the third lens 2320 may move in a direction closer to the first lens 2120 . When a current in a second direction opposite to the first direction is applied to the second coil 2422 , the third lens 2320 may move in a direction away from the first lens 2120 .

Hereinafter, a camera device according to the present embodiment will be described with reference to the drawings.

FIG. 1 is a perspective view of a camera device according to this embodiment, FIG. 2 is a bottom perspective view of the camera device according to this embodiment, FIG. 3 is a plan view of the camera device according to this embodiment, and FIG. 4 is A-A of FIG. , FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3 , FIG. 6 is a cross-sectional view taken along line C-C of FIG. 3 , and FIG. 7 is an exploded perspective view of the camera device according to this embodiment, and FIG. 8 is this embodiment A perspective view in which the cover member is omitted in the camera device according to , FIG. 56 is a perspective view of a partial configuration of the camera device according to the present embodiment, and FIG. is a perspective view.

The camera device 10 may include a cover member 3100 . The cover member 3100 may be a 'cover can' or a 'shield can'. The cover member 3100 may be disposed to cover the reflective member driving device 1000 and the lens driving device 2000 . The cover member 3100 may be disposed outside the reflective member driving device 1000 and the lens driving device 2000 . The cover member 3100 may surround the reflective member driving device 1000 and the lens driving device 2000 . The cover member 3100 may accommodate the reflective member driving device 1000 and the lens driving device 2000 . The cover member 3100 may be formed of a metal material. The cover member 3100 may block electromagnetic interference (EMI).

The cover member 3100 may include a top plate 3110 . The upper plate 3110 may include an opening or a hole. Light may be incident through the opening or hole of the upper plate 3110 . The opening or hole of the upper plate 3110 may be formed at a position corresponding to the reflective member 1220 .

The cover member 3100 may include a side plate 3120 . The side plate 3120 may include a plurality of side plates. The side plate 3120 may include four side plates. The side plate 3120 may include first to fourth side plates. The side plate 3120 may include first and second side plates disposed opposite to each other, and third and fourth side plates disposed opposite to each other.

The camera device 10 may include a printed circuit board 3300 (PCB, Printed Circuit Board). The printed circuit board 3300 may be a board or a circuit board. A sensor base 3500 may be disposed on the printed circuit board 3300 . The printed circuit board 3300 may be electrically connected to the reflective member driving device 1000 and the lens driving device 2000 . The printed circuit board 3300 may be provided with various circuits, elements, control units, etc. to convert an image formed on the image sensor 3400 into an electrical signal and transmit it to an external device.

The printed circuit board 3300 may include a marking unit 3310 . A marking unit 3310 may be disposed on the rear surface of the printed circuit board 3300 .

The camera device 10 may include a SUS 3320 . The suspension 3320 may be disposed on the rear surface of the printed circuit board 3300 . The suspension 3320 may reinforce the strength of the printed circuit board 3300 . The suspension 3320 may emit heat generated in the printed circuit board 3300 .

The camera device 10 may include an image sensor 3400 . The image sensor 3400 may be disposed on the printed circuit board 3300 . Light passing through the lens and filter 3600 may be incident to the image sensor 3400 to form an image. The image sensor 3400 may be electrically connected to the printed circuit board 3300 . For example, the image sensor 3400 may be coupled to the printed circuit board 3300 by a surface mounting technology (SMT). As another example, the image sensor 3400 may be coupled to the printed circuit board 3300 by flip chip technology. The image sensor 3400 may be disposed so that the lens and the optical axis coincide. The optical axis of the image sensor 3400 and the optical axis of the lens may be aligned. The image sensor 3400 may convert light irradiated to the effective image area of the image sensor 3400 into an electrical signal. The image sensor 3400 may include any one or more of a charge coupled device (CCD), a metal oxide semi-conductor (MOS), a CPD, and a CID.

The camera device 10 may include a sensor base 3500 . The sensor base 3500 may be disposed on the printed circuit board 3300 . A filter 3600 may be disposed on the sensor base 3500 . An opening may be formed in a portion of the sensor base 3500 where the filter 3600 is disposed so that light passing through the filter 3600 may be incident on the image sensor 3400 .

The camera device 10 may include a filter 3600 . The filter 3600 may serve to block light of a specific frequency band from being incident on the image sensor 3400 in light passing through the lens. The filter 3600 may be disposed between the lens and the image sensor 3400 . The filter 3600 may be disposed on the sensor base 3500 . The filter 3600 may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor 3400 .

The camera device 10 may include a substrate 3700 . The substrate 3700 may be connected to the printed circuit board 3300 . The substrate 3700 may extend from the printed circuit board 3300 . The substrate 3700 may include a terminal electrically connected to the reflective member driving apparatus 1000 . The substrate 3700 may include an extension extending outward.

The camera device 10 may include a connector 3710 . The connector 3710 may be disposed on the board 3700 . The connector 3710 may be disposed on the lower surface of the extension part of the board 3700 . The connector 3710 may be connected to, for example, a power supply unit of a smartphone.

The camera device 10 may include a temperature sensor 3800 . The temperature sensor 3800 may sense a temperature. The temperature sensed by the temperature sensor 3800 may be used for more accurate control of any one or more of a hand shake correction function, an autofocus function, and a zoom function.

The camera device 10 may include a driver IC 3900 . The driver IC 3900 may be electrically connected to the lens driving device 2000 . The driver IC 3900 may be described as one configuration of the lens driving device 2000 . The driver IC 3900 may be electrically connected to the first coil 2412 and the second coil 2422 of the lens driving device 2000 . The driver IC 3900 may supply current to the first coil 2412 and the second coil 2422 of the lens driving device 2000 . The driver IC 3900 may control at least one of a voltage or a current applied to each of the first coil 2412 and the second coil 2422 of the lens driving device 2000 . The driver IC 3900 may be electrically connected to the Hall sensors 2413 , 2414 , 2423 , and 2424 . The driver IC 3900 includes the first coil 2412 and the second coil 2422 through the positions of the second lens 2220 and the third lens 2320 sensed by the Hall sensors 2413, 2414, 2423, and 2424. It is possible to feedback control the voltage and current applied to the .

Hereinafter, an optical device according to the present embodiment will be described with reference to the drawings.

58 is a perspective view of the front side of the optical device according to the present embodiment, and FIG. 59 is a perspective view of the rear side of the optical device according to the present embodiment.

The optical device 1 is a mobile phone, a mobile phone, a mobile terminal, a mobile terminal, a smart phone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, PDA (Personal Digital Assistants) , PMP (Portable Multimedia Player), and may include any one or more of navigation. The optical device 1 may include any device for taking an image or a picture.

The optical device 1 may include a body 20 . The optical device 1 may include a camera device 10 . The camera device 10 may be disposed on the body 20 . The camera device 10 may photograph a subject. The optics 1 may include a display 30 . The display 30 may be disposed on the body 20 . The display 30 may output any one or more of an image and an image captured by the camera device 10 . The display 30 may be disposed on the first surface of the body 20 . The camera device 10 may be disposed on one or more of a first surface of the body 20 and a second surface opposite to the first surface.

The camera device 10 according to the present embodiment may be a folded camera module. The folded camera module may have an angle of view of 15 degrees to 40 degrees. The folded camera module may have a focal length of 18 mm to 20 mm or more. The folded camera module may be used as a rear camera of the optical device 1 . A main camera having an angle of view of 70 degrees to 80 degrees may be disposed on the rear side of the optical device 1 . In this case, the folded camera may be disposed next to the main camera. That is, the camera device 10 according to the present embodiment may be applied to any one or more of a plurality of rear cameras of the optical device 1 . The camera device 10 according to the present embodiment may be applied to one of the two, three, four or more rear cameras of the optical device 1 .

Meanwhile, the camera device 10 according to the present embodiment may also be disposed on the front side of the optical device 1 . However, when the front camera of the optical device 1 is one, a wide-angle camera may be applied. When there are two or more front cameras of the optical device 1, one of them may be a tele camera as in this embodiment. However, since the focal length is not longer than that of the rear tele camera, a normal camera module that does not include a reflective member rather than a folded camera module may be applied.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (40)

housing;
a holder disposed within the housing;
a reflective member disposed on the holder;
a moving plate disposed between the housing and the holder;
a mover rigid coupled to the holder;
a first magnet disposed on the mover rigid;
a second magnet disposed in the housing and generating a repulsive force with the first magnet; and
It includes a driving unit for tilting the holder,
With respect to the first optical axis, the central axis of the first magnet is an actuator device arranged to be eccentric with the central axis of the moving plate. According to claim 1,
With respect to the opposite surface, a horizontal axis passing through the central axis of the first magnet is eccentric in the direction of a horizontal axis passing through the central axis of the moving plate and a second optical axis perpendicular to the first optical axis. 3. The method of claim 2,
A vertical axis passing through the central axis of the first magnet is not eccentric in the direction of the vertical axis passing through the central axis of the moving plate and the horizontal axis with respect to the opposite surface. According to claim 1,
A portion of the housing is an actuator device disposed between the moving plate and the mover rigid. According to claim 1,
The housing is an actuator device including two holes into which the mover rigid is inserted. 3. The method of claim 2,
The horizontal axis of the first magnet is an actuator device disposed higher than the horizontal axis of the moving plate. According to claim 1,
At least a portion of the second magnet is an actuator device disposed between the first magnet and the moving plate. According to claim 1,
The moving plate is an actuator device disposed between the mover rigid and the holder. According to claim 1,
The driving unit includes a first driving unit and a second driving unit,
The first driving unit includes a first driving magnet and a first coil,
An actuator device comprising the second driving unit, a second driving magnet, and a second coil. 10. The method of claim 9,
The first driving unit is an actuator device for tilting the holder based on a first axis of the moving plate. 11. The method of claim 10,
The second actuator tilts the holder based on a second axis perpendicular to the first axis of the moving plate. According to claim 1,
An actuator device in which the center of the second magnet is disposed at the same height as the center of the first magnet. 11. The method of claim 10,
The housing includes a second portion disposed above the holder and a third portion disposed below the holder,
the holder is moved between the second part and the third part of the housing by the first driving part;
In an initial state in which no current is applied to the first driving unit, the holder is in contact with the housing. 14. The method of claim 13,
A first direction driving current is applied to the first coil to drive the first coil,
A second direction driving current opposite to the first direction driving current is not used to drive the first coil. 11. The method of claim 10,
The first axis of the moving plate is an actuator device defined by a first protrusion of the moving plate and a groove of the housing. 12. The method of claim 11,
The moving plate includes a first surface facing the housing and a second surface facing the holder,
The first surface of the moving plate includes a plurality of first projections spaced apart from each other in the direction of the first axis,
The second surface of the moving plate is an actuator device including a plurality of second projections spaced apart from each other in the direction of the second axis. 17. The method of claim 16,
The housing includes a plurality of grooves in which the plurality of first protrusions are disposed,
The plurality of grooves of the housing includes a first groove making four-point contact with one of the plurality of first protrusions and a second groove making two-point contact with the other first protrusion of the plurality of first protrusions. Including actuator device. 17. The method of claim 16,
The holder includes a plurality of grooves in which the plurality of second projections are disposed,
The plurality of grooves of the holder includes a first groove making four-point contact with one of the second protrusions among the plurality of second protrusions, and a second groove making two-point contact with the second protrusion of another one of the plurality of second protrusions. Including actuator device. 10. The method of claim 9,
a substrate disposed on the housing;
The first driving magnet is disposed on the lower surface of the holder,
The first coil is an actuator device disposed on the substrate at a position corresponding to the first driving magnet. 20. The method of claim 19,
The second driving magnet includes a first sub-magnet disposed on a first side of the holder, and a second sub-magnet disposed on a second side of the holder,
The second coil includes a first sub-coil disposed on the substrate and disposed at a position corresponding to the first sub-magnet, and a second sub-coil disposed on the substrate and disposed at a position corresponding to the second sub-magnet. Including actuator device. 14. The method of claim 13,
The holder includes a first protrusion formed on the upper surface of the holder, and a second protrusion formed on the lower surface of the holder,
In the initial state, the first projection of the holder is in contact with the second portion of the housing,
An actuator device such that the second protrusion of the holder comes into contact with the third portion of the housing by applying a current to the first driving unit or by impact. According to claim 1,
The moving plate is an actuator device disposed between the first magnet and the holder. According to claim 1,
The first magnet and the second magnet are an actuator device disposed between the mover rigid and the moving plate. printed circuit board;
an image sensor disposed on the printed circuit board;
The actuator device of claim 1 ; and
and a lens disposed in an optical path formed by the reflective member of the actuator device and the image sensor. main body;
The camera device of claim 24 disposed on the main body; and
and a display disposed on the main body and outputting at least one of an image and an image captured by the camera device. fixed part;
a moving part that moves with respect to the fixed part;
a moving plate disposed between the fixed part and the moving part;
a first magnet disposed on the moving part;
a second magnet disposed on the fixing part and generating a repulsive force with the first magnet; and
And a driving unit for tilting the moving unit with respect to the x-axis and y-axis perpendicular to each other of the moving plate,
In the y-axis direction, a horizontal axis passing through the center of the second magnet is an actuator device disposed to be eccentric with the x-axis of the moving plate. 27. The method of claim 26,
The moving plate includes a plurality of first convex portions formed on one surface, and an actuator device including a plurality of second convex portions formed on the other surface. 28. The method of claim 27,
The x-axis corresponds to a straight line connecting two convex parts among the plurality of first convex parts. 28. The method of claim 27,
The y-axis corresponds to a straight line connecting two convex parts among the plurality of second convex parts. 27. The method of claim 26,
In a direction passing through the x-axis, the center of the second magnet is not eccentric with the y-axis. 27. The method of claim 26,
When viewed from the moving plate toward the first magnet, the center of the second magnet is an actuator device arranged to coincide with the y-axis. 27. The method of claim 26,
The driving unit includes a first driving unit and a second driving unit,
The first driving unit includes a first driving magnet and a first coil,
An actuator device comprising the second driving unit, a second driving magnet, and a second coil. 27. The method of claim 26,
A central portion of the second magnet is disposed at the same height as a central portion of the first magnet. 33. The method of claim 32,
The fixing part includes a second part disposed above the moving part, and a third part disposed below the moving part,
The moving part is moved between the second part and the third part of the fixed part by the first driving magnet and the first coil,
In an initial state in which no current is applied to the first coil, the moving part is in contact with the second part of the fixing part. fixed part;
a moving part that moves with respect to the fixed part;
a moving plate disposed between the fixed part and the moving part;
a first magnet disposed on the moving part;
a second magnet disposed on the fixing part; and
It includes a driving unit for tilting the moving unit,
A portion of the fixing part is disposed between the moving plate and the second magnet,
In an initial state in which no current is applied to the driving unit, the moving unit is in contact with the fixed unit. 36. The method of claim 35,
The fixing unit includes a housing,
The moving part includes a holder disposed in the housing,
In an initial state in which no current is applied to the driving unit, the holder is in contact with the upper plate of the housing. housing;
a holder disposed within the housing;
a reflective member disposed on the holder;
a moving plate disposed between the housing and the holder;
a mover rigid coupled to the holder;
a first magnet disposed on the mover rigid;
a second magnet disposed in the housing and generating a repulsive force with the first magnet; and
It includes a driving unit for tilting the holder,
In an initial state in which no current is applied to the driving unit, the holder is in contact with the housing. 38. The method of claim 37,
In the initial state, the holder is in contact with the inner surface of the housing adjacent to the incident surface of the reflective member. 39. The method of claim 38,
As a current is applied to the driving unit, the holder is spaced apart from the inner surface of the housing and is tilted based on a first axis of the moving plate. 38. The method of claim 37,
The housing includes a second portion disposed above the holder and a third portion disposed below the holder,
and the holder is moved between the second part and the third part of the housing by the driving part.

Images