KR102617337B1 - A lens moving unit, and camera module and optical instrument including the same - Google Patents

Abstract

The embodiment includes sides and first to fourth corner portions, each of the first to fourth corner portions being a housing disposed between two adjacent sides, disposed inside the housing, and configured to mount a lens. A bobbin, a first coil disposed on the outer peripheral surface of the bobbin, first magnets disposed on sides of the housing, a substrate disposed in the first corner and including first to sixth pads, on the substrate A first position sensor disposed and electrically connected to the first to sixth pads, a first and second position sensor disposed in the first corner and coupled to a corresponding one of the first and second pads 2 upper springs, a third upper spring disposed at the second corner and coupled to the third pad, a fourth upper spring disposed at the third corner and coupled to the fourth pad, the fourth upper spring It includes a fifth upper spring disposed at a corner, and first and second lower springs coupled to the lower part of the housing, electrically connected to the first coil, and coupled to the fifth and sixth pads. .

Description

Lens driving device, and camera module and optical device including the same {A LENS MOVING UNIT, AND CAMERA MODULE AND OPTICAL INSTRUMENT INCLUDING THE SAME}

Embodiments relate to a lens driving device and a camera module and optical device including the same.

Since it is difficult to apply the voice coil motor (VCM) technology used in existing general camera modules to camera modules for ultra-small size and low power consumption, related research has been actively conducted.

Demand and production of electronic products such as smartphones and cell phones equipped with cameras are increasing. Cameras for mobile phones are trending towards higher resolution and miniaturization, and actuators are also becoming smaller, larger in diameter, and multi-functional accordingly. In order to implement a high-resolution mobile phone camera, additional functions such as improved mobile phone camera performance and auto focusing, improved shutter shake, and zoom function are required.

The embodiment provides a lens driving device that can reduce size, reduce current consumption, and improve sensitivity of OIS driving, and a camera module and optical device including the same.

A lens driving device according to an embodiment includes a housing including side portions and first to fourth corner portions, each of the first to fourth corner portions being disposed between two adjacent sides; a bobbin disposed inside the housing and for mounting a lens; a first coil disposed on the outer peripheral surface of the bobbin; First magnets disposed on sides of the housing; a board disposed in the first corner and including first to sixth pads; a first position sensor disposed on the board and electrically connected to the first to sixth pads; first to fourth upper springs disposed in the first corner and coupled to a corresponding one of the first to fourth pads; a fifth upper spring disposed at each of the second corner portions and coupled to the fifth pad; a sixth upper spring disposed at the third corner and coupled to the sixth pad; a seventh upper spring disposed at the fourth corner; and first and second lower springs coupled to the lower part of the housing and electrically connected to the first coil, wherein two of the first to sixth upper springs and the first and second lower springs are connected to each other

The lens driving device may further include a circuit board disposed below the first and second lower springs and electrically connected to the remaining four of the first to sixth upper springs.

The lens driving device is disposed at the first to fourth corner portions, connects the two of the first to sixth upper springs and the first and second lower springs, and connects the first to sixth upper springs. It may further include support members connecting the remaining four of these to the circuit board.

Each of the first upper spring and the fifth to seventh upper springs includes a first inner frame coupled to the bobbin; a first outer frame having a first coupling portion coupled to a corresponding one of first to fourth corner portions of the housing; And it may include a first frame connection part connecting the first inner frame and the first outer frame.

Each of the second to fourth upper springs may include a first outer frame having a first coupling portion coupled to a first corner portion of the housing.

Each of the fifth and sixth upper springs may further include an upper extension frame extending from a first coupling portion of the first outer frame of each of the fifth and sixth upper springs toward the first corner portion.

Contact portions are provided at ends of the first to fourth upper springs and ends of upper extension frames of the fifth and sixth upper springs, and each of the contact portions corresponds to a corresponding one of the first to sixth pads. Can be combined with any one.

Each of the second and third upper springs includes a second coupling portion to which a corresponding one of the support members is coupled; And it may include a connection part connecting the first coupling part and the second coupling part.

The first position sensor transmits signals for data communication to or receives signals for data communication from the circuit board through four of the first to sixth pads, and the remaining two of the first to sixth pads A driving signal can be provided to the first coil through the pads.

A lens driving device according to another embodiment includes a housing including side portions and first to fourth corner portions, each of the first to fourth corner portions being disposed between two adjacent sides; a bobbin disposed inside the housing and for mounting a lens; a first coil disposed on the outer peripheral surface of the bobbin; First magnets disposed on sides of the housing; a board disposed in the first corner and including first to sixth pads; a first position sensor disposed on the board and electrically connected to the first to sixth pads; first and second upper springs disposed in the first corner and coupled to a corresponding one of the first and second pads; a third upper spring disposed at each of the second corner portions and coupled to the third pad; a fourth upper spring disposed at the third corner and coupled to the fourth pad; a fifth upper spring disposed at the fourth corner; and first and second lower springs coupled to the lower portion of the housing, electrically connected to the first coil, and coupled to the fifth and sixth pads.

The board includes a body on which the first position sensor is disposed on the front side; It includes first and second protrusions bent from the upper surface of the body, wherein the first to fourth pads are spaced apart from each other on the upper surface of the body and the first and second protrusions, and the fifth and fourth pads are disposed spaced apart from each other on the upper surface of the body and the first and second protrusions. 6 Pads may be arranged to be spaced apart from each other on the lower surface of the body.

The body is disposed parallel to the inner surface of the first corner portion, and each of the first and second protrusions may protrude from the front of the body toward the rear of the body based on the rear of the body.

The body may include an upper end and a lower end, and the upper end of the body may include a portion whose length in the horizontal direction decreases from top to bottom.

The lens driving device includes a circuit board disposed below the first and second lower springs; and support members disposed at each of the first to fourth corner portions and connecting each of the first to fifth upper springs to the circuit board.

The first to fourth upper elastic members may be electrically connected to the circuit board through the support members.

A groove in which the body is placed may be provided in the first corner of the housing.

Each of the first and second lower springs includes a second inner frame coupled to the bobbin, a second outer frame coupled to the housing, and a second frame connection portion connecting the second inner frame and the second outer frame. It may include, and each of the fifth and sixth pads may be coupled to a corresponding one of the second outer frames of the first and second lower springs.

The first position sensor transmits signals for data communication to or receives signals for data communication from the circuit board through the first to fourth pads, and provides a driving signal to the first coil through the fifth and sixth pads. can be provided.

A camera module according to an embodiment includes a lens; a lens driving device according to the above-described embodiment that moves the lens; an image sensor that converts an image incident through the lens driving device into an electrical signal; and a first control unit providing a clock signal, a data signal, and a power signal to the first position sensor.

An optical device according to an embodiment includes a display module including a plurality of pixels whose colors change by electrical signals; A camera module according to the above-described embodiment that converts an image incident through a lens into an electrical signal; and a second control unit that controls the display module and the camera module.

The embodiment can reduce the size, reduce current consumption, and improve the sensitivity of OIS driving.

1 shows an exploded perspective view of a lens driving device according to an embodiment.
FIG. 2 shows a combined perspective view of the lens driving device excluding the cover member of FIG. 1.
FIG. 3 shows a perspective view of the bobbin, first coil, and second and third magnets shown in FIG. 1.
FIG. 4 shows an exploded perspective view of the housing and first magnet shown in FIG. 1.
Figure 5 shows an exploded perspective view of the housing, first position sensor, and board shown in Figure 1;
FIG. 6A shows an enlarged view of the board and first position sensor shown in FIG. 5.
FIG. 6B shows a configuration diagram of the first position sensor shown in FIG. 6A.
FIG. 7 is a cross-sectional view of the lens driving device shown in FIG. 2 cut in the AB direction.
FIG. 8 is a cross-sectional view of the lens driving device shown in FIG. 2 cut in the CD direction.
FIG. 9A shows a top view of the upper elastic member shown in FIG. 1.
FIG. 9B shows an enlarged view of the first outer frame of the sixth and seventh upper elastic members shown in FIG. 9A.
FIG. 9C shows a top view of the lower elastic member shown in FIG. 1.
FIG. 10 shows a perspective view of the upper elastic member, lower elastic member, base, support member, second coil, and circuit board shown in FIG. 1 combined.
Figure 11 shows an exploded perspective view of the second coil, circuit board, base, and second position sensor shown in Figure 1;
Figure 12 shows a perspective view of a lens driving device according to another embodiment.
Figure 13a shows an exploded perspective view of the housing and the board on which the first position sensor is mounted.
Figure 13B shows a combined perspective view of the housing, first position sensor, and board.
Figure 14 shows a combined perspective view of the board and the first position sensor.
Figure 15 shows the upper elastic member shown in Figure 12.
Figure 16 shows the lower elastic member of the embodiment shown in Figure 12.
Figure 17 shows the electrical connection between the first and second lower springs and the pads of the board.
Figure 18 shows a perspective view of a lens driving device according to another embodiment.
FIG. 19 is a cross-sectional view in the EF direction of the lens driving device of FIG. 18.
Figure 20A shows the upper elastic member shown in Figure 18.
Figure 20b shows a partially enlarged view of Figure 20a.
FIG. 21 shows the connection relationship between the upper elastic member, board, and support members shown in FIG. 18.
Figure 22 shows an exploded perspective view of a camera module according to an embodiment.
Figure 23 shows a perspective view of a portable terminal according to an embodiment.
FIG. 24 shows a configuration diagram of the portable terminal shown in FIG. 23.

Hereinafter, embodiments will be clearly revealed through the accompanying drawings and descriptions of the embodiments. In the description of the embodiment, each layer (film), region, pattern or structure is “on” or “under” the substrate, each layer (film), region, pad or pattern. In the case where it is described as being formed, “on” and “under” include both being formed “directly” or “indirectly through another layer.” do. Additionally, the standards for top/top or bottom/bottom of each floor are explained based on the drawing.

In the drawings, sizes are exaggerated, omitted, or schematically shown for convenience and clarity of explanation. Additionally, the size of each component does not entirely reflect the actual size. Additionally, the same reference numbers indicate the same elements throughout the description of the drawings.

Hereinafter, a lens driving device according to an embodiment will be described as follows with reference to the attached drawings. For convenience of explanation, the lens driving device according to the embodiment is described using a Cartesian coordinate system (x, y, z), but it can also be described using another coordinate system, and the embodiment is not limited to this. In each drawing, the x-axis and y-axis refer to directions perpendicular to the z-axis, which is the optical axis direction. The z-axis direction, which is the optical axis direction, is called the 'first direction', the x-axis direction is called the 'second direction', and the y The axial direction may be referred to as the 'third direction'.

An 'image stabilization device' applied to small camera modules of mobile devices such as smartphones or tablet PCs is a device that prevents the outline of the captured image from being clearly formed due to vibration caused by the user's hand shaking when shooting still images. It may refer to a device configured to do so.

Additionally, an 'autofocusing device' is a device that automatically focuses an image of a subject onto the image sensor surface. Such image stabilization devices and auto-focusing devices can be configured in various ways. The lens driving device according to the embodiment moves the optical module composed of at least one lens in a first direction parallel to the optical axis, or moves the optical module composed of at least one lens in a first direction parallel to the optical axis. An image stabilization operation and/or an auto-focusing operation may be performed by moving about a surface formed by the second and third directions perpendicular to the .

FIG. 1 shows an exploded perspective view of the lens driving device 100 according to an embodiment, and FIG. 2 shows a combined perspective view of the lens driving device 100 excluding the cover member 300 of FIG. 1.

1 and 2, the lens driving device 100 includes a bobbin (110), a first coil (120), a first magnet (130), a housing (140), and an upper elastic member (150). , a lower elastic member 160, a first position sensor 170, and a second magnet 180.

Additionally, the lens driving device 100 includes a third magnet 185, a board 190, a support member 220, a second coil 230, second position sensors 240a and 240b, a circuit board 250, It may further include a base 210 and a cover member 300.

The cover member 300 includes a bobbin 110, a first coil 120, a first magnet 130, a housing 140, and an upper elastic member 150 in a receiving space formed together with the base 210. ), lower elastic member 160, first position sensor 170, second magnet 180, board 190, support member 220, second coil 230, second position sensor 240, and a circuit board 250.

The cover member 300 may have a box shape with an open bottom and include a top portion and side walls, and the lower portion of the cover member 300 may be coupled to the upper portion of the base 210 . The shape of the upper end of the cover member 300 may be polygonal, for example, square or octagon.

The cover member 300 may have a hollow portion at the upper end that exposes a lens (not shown) coupled to the bobbin 110 to external light. Additionally, in order to prevent foreign substances such as dust or moisture from penetrating into the camera module, a window made of a light-transmissive material may be additionally provided in the hollow of the cover member 300.

The material of the cover member 300 may be a non-magnetic material such as SUS to prevent sticking to the first magnet 130, but is made of a magnetic material to prevent electromagnetic force between the first coil 120 and the first magnet 130. It can also function as a yoke to improve .

Next, the bobbin 110 will be described.

The bobbin 110 is disposed inside the housing 140 and moves in the optical axis (OA) direction or a first direction (for example, the Z-axis direction) by electromagnetic interaction between the first coil 120 and the first magnet 130. ) can be moved to .

FIG. 3 shows a perspective view of the bobbin 110, the first coil 120, and the second and third magnets 180 and 185 shown in FIG. 1.

Referring to FIG. 3, the bobbin 110 may have a hollow for mounting a lens or lens barrel. For example, the hollow shape of the bobbin 110 may be circular, oval, or polygonal, but is not limited thereto.

A lens may be directly mounted in the hollow of the bobbin 110, but is not limited to this. In another embodiment, a lens barrel on which at least one lens is mounted or coupled may be coupled or mounted in the hollow of the bobbin 110. . The lens or lens barrel may be coupled to the inner peripheral surface 110a of the bobbin 110 in various ways.

The bobbin 110 may include first sides 110b-1 spaced apart from each other and second sides 110b-2 spaced apart from each other, and each of the second sides 110b-1 has two adjacent sides. The first sides of the dog can be connected to each other. For example, the horizontal or horizontal length of each of the first sides 110b-1 of the bobbin 110 may be greater than the horizontal or horizontal length of each of the second sides 110b-2.

A guide portion 111 may be provided on the upper surface of the bobbin 110 to guide the installation position of the upper elastic member 150. For example, as illustrated in FIG. 3, the guide portion 111 of the bobbin 110 moves in a first direction (e.g., from the upper surface) to guide the path along which the frame connection portion 153 of the upper elastic member 150 passes. It can protrude in the Z-axis direction).

Additionally, the outer peripheral surface 110b of the bobbin 110 may include a protrusion 112 protruding in the second and/or third directions. The inner frame 151 of the upper elastic member 150 may be seated on the upper surface 112a of the protrusion 112 of the bobbin 110.

The protrusion 112 of the bobbin 110 is such that when the bobbin 110 moves in the optical axis direction for auto focusing, even if the bobbin 110 moves beyond a specified range due to an external impact, etc., the bobbin 110 remains in the housing 140. ) can play a role in preventing direct collisions.

The bobbin 110 may include an upper support protrusion 113a coupled to and fixed to the upper elastic member 150.

A coil seating groove into which the first coil 120 is seated, inserted, or placed may be provided on the outer peripheral surface of the bobbin 110. The seating groove for the coil may have a groove structure recessed from the outer surface 110b of the first and second sides 110b-1 and 110b-2 of the bobbin 110, and has the shape of the first coil 120 and It may have a matching shape, for example a ring shape.

The bobbin 110 may have a second magnet seating groove 180a on its outer peripheral surface, into which the second magnet 180 is seated, inserted, fixed, or disposed.

The second magnet seating groove 180a of the bobbin 110 may have a structure recessed from the outer peripheral surface 110b of the bobbin 110 and may have an opening open to the upper surface of the bobbin 110, but is limited to this. It doesn't work.

The second magnet seating groove 180a of the bobbin 110 may be located above the coil seating groove where the first coil 120 is placed and may be spaced apart from the coil seating groove, but is not limited thereto. no.

Additionally, the bobbin 110 may have a third magnet seating groove 185a on its upper surface into which the third magnet 185 is seated, inserted, fixed, or disposed.

The third magnet seating groove 185a may have a structure recessed from the outer peripheral surface 110b of the bobbin 110 and may have an opening open to the upper surface of the bobbin 110, but is not limited thereto.

The third magnet seating groove 185a of the bobbin 110 may be located above the coil seating groove where the first coil 120 is placed and may be spaced apart from the coil seating groove, but is not limited thereto. no.

The seating groove 180a for the second magnet may be provided on any one of the second sides 110b-2 of the bobbin 110, and the seating groove 185a for the third magnet may be provided on the second side portion 110b-2 of the bobbin 110. It may be provided on any other one of the side portions 110b-2.

The third magnet seating groove 185a may be arranged to face the second magnet seating groove 180a. For example, the second and third magnet seating grooves 180a and 185a may be provided on two second sides of the bobbin 110 facing each other.

By arranging or aligning the second magnet 180 and the third magnet 185 on the bobbin 110 in a balanced manner with respect to the first position sensor 170, the second magnet 180 with respect to the first coil 120 The third magnet 185 can offset the influence of the magnetic force, thereby improving the accuracy of AF (Auto Focusing) driving.

The first coil 120 is disposed on the outer peripheral surface 110b of the bobbin 110.

The first coil 120 may be disposed below the second and third magnets 180 and 180, but is not limited thereto. For example, the first coil 120 may not overlap the second and third magnets 180 and 185 in the second or third direction, but is not limited to this.

For example, the first coil 130 may be placed in the coil seating groove, the second magnet 180 may be inserted or placed in the second magnet seating groove 180a, and the third magnet 185 may be It may be inserted or placed in the third magnet seating groove (185a).

Each of the second magnet 180 and the third magnet 185 disposed on the bobbin 110 may be spaced apart from the first coil 120 in the optical axis (OA) direction, but is not limited thereto, and other embodiments In the bobbin 110, each of the second magnet 180 and the third magnet 185 is in contact with the first coil 120 or overlaps the first coil 120 in the second or third direction. It could be.

The first coil 120 may have a ring shape surrounding the outer peripheral surface 110b of the bobbin 110 in a direction rotating about the optical axis OA.

The first coil 120 may be wound directly on the outer peripheral surface 110b of the bobbin 110, but is not limited to this. According to another embodiment, the first coil 120 is wound on the bobbin 110 using a coil ring. ), or may be provided as an angled ring-shaped coil block.

When a driving signal (e.g., driving current) is supplied, the first coil 120 can form electromagnetic force through electromagnetic interaction with the first magnet 130, and the bobbin ( 110) can be moved.

At the initial position of the AF movable unit, the first coil 120 may be arranged to correspond to the first magnet 130 disposed in the housing 140 or to be aligned in a direction perpendicular to the optical axis OA.

For example, the AF moving unit may include a bobbin 110 and components coupled to the bobbin 110 (e.g., a first coil 120, second and third magnets 180, 185, and AF). The initial position of the movable part is the initial position of the AF movable part in a state where power is not applied to the first coil 1120, or the upper and lower elastic members 150 and 160 are elastically deformed only by the weight of the AF movable part. It may be the location where it is placed.

The second magnet 180 is disposed in the second magnet seating groove 180a of the bobbin 110, and a portion of one side of the second magnet 180 facing the first position sensor 170 is the second magnet. It may be exposed from the seating groove 180a for the magnet.

For example, the boundary surfaces of the N and S poles of each of the second and third magnets 180 and 185 disposed on the bobbin 110 may be parallel to the direction perpendicular to the optical axis OA. For example, the first position sensor The surfaces of each of the second and third magnets 180 and 185 facing 170 may be divided into an N pole and an S pole, but are not limited thereto.

For example, in another embodiment, the boundary surfaces of the N and S poles of the second and third magnets 180 and 185 disposed on the bobbin 110 may be parallel to the optical axis OA.

The second magnet 180 can move in the optical axis direction together with the bobbin 110, and the first position sensor 170 can detect the strength of the magnetic field of the second magnet 180 moving in the optical axis direction. Since the intensity of the magnetic field detected by the first position sensor 170 changes according to the displacement of the bobbin 110 in the optical axis direction, the bobbin 110 is detected based on the intensity of the magnetic field detected by the first position sensor 170. Displacement in the direction of the optical axis can be detected.

The magnetic field of the second magnet 180 may affect the interaction between the first magnet 130 and the first coil 120, and the third magnet 185 may determine that the magnetic field of the second magnet 180 may affect the interaction between the first magnet 130 and the first coil 120. It may serve to alleviate or eliminate the effect on the interaction between the magnet 130 and the first coil 120.

For example, the third magnet 185 may be disposed on a second side opposite to the second side of the bobbin 110 where the second magnet 180 is disposed to face the second magnet 180. Through the arrangement of these second and third magnets 180 and 185, the magnetic field of the third magnet 185 is generated by a second magnet ( The magnetic field of the second magnet 180 can be compensated, and as a result, the influence of the magnetic field of the second magnet 180 on the AF operation can be alleviated or eliminated, and thus the embodiment can improve the accuracy of the AF operation.

Next, the housing 140 will be described.

The housing 140 accommodates the bobbin 110 inside and supports the board 190 on which the first magnet 130 and the first position sensor 170 are disposed.

The housing 140 may have an overall hollow pillar shape. For example, the housing 140 may have a polygonal (eg, square or octagonal) or circular hollow shape.

Figure 4 shows an exploded perspective view of the housing 140 and the first magnet 130 shown in Figure 1, and Figure 5 shows the housing 140 shown in Figure 1, the first position sensor 170, and the board ( 190) shows an exploded perspective view.

Referring to FIGS. 4 and 5 , the housing 140 may include a plurality of side portions 141 and 142 . For example, the housing 140 may include first side parts 141 spaced apart from each other and second side parts 142 spaced apart from each other.

Each of the first sides 141 of the housing 140 may be disposed or positioned between two adjacent second sides 142, and may connect the second sides 142 to each other, and may have a predetermined depth. It may include the plane of . For example, the second side portions 142 may be located at a corner or corner of the housing 140 and may be expressed as a corner portion.

For example, the number of first sides 141 of the housing 140 is four and the number of second sides 142 is four, but the number is not limited thereto.

The horizontal length of each of the first sides 141 of the housing 140 may be greater than the horizontal length of each of the second sides 142, but is not limited thereto.

A first magnet 130 may be placed or installed on the first sides 141 of the housing 140. Each of the second sides 142 of the housing 140 may be disposed between two adjacent first sides 141, and a support member 220 is provided on the second sides 142 of the housing 140. can be placed.

When the bobbin 110 moves in the optical axis (OA) direction, the housing 140 is seated at a position corresponding to the protrusion 112 of the bobbin 110 to avoid interference with the protrusion 112 of the bobbin 110. A groove 146 may be provided.

For example, when the initial position of the bobbin 110 is set to the state in which the bottom surface of the protrusion 111 of the bobbin 110 and the bottom surface 146a of the seating groove 146 of the housing 140 are in contact, the auto focusing function is activated. It can be controlled in one direction (eg, positive Z-axis direction from the initial position).

However, for example, if the initial position of the bobbin 110 is set at a position where the bottom surface of the protrusion 111 of the bobbin 110 and the bottom surface 146a of the seating groove 146 of the housing 140 are spaced a certain distance apart, The auto-focusing function can be controlled in both directions (eg, in the positive Z-axis direction at the initial position and in the negative Z-axis direction at the initial position).

The housing 140 includes a first magnet seating portion 141a for accommodating the first magnet 130, a board mounting groove 141-1 for accommodating the board 190, and a first position sensor 170. It may be provided with a mounting groove (141-2) for the first position sensor to accommodate.

The first magnet seating portion 141a may be provided at the inner bottom of at least one of the first sides 141 of the housing 140. For example, the first magnet seating portion 141a may be provided at the inner bottom of each of the four first side portions 141, and each of the first magnets 130-1 to 130-4 is the first magnet seating portion. It can be inserted and fixed to the corresponding one of (141a).

The first magnet seating portion 141a of the housing 140 may be formed with a groove corresponding to the size of the first magnet 130. An opening may be formed in the bottom surface of the first magnet seating portion 141a of the housing 140 facing the second coil 240, and the first magnet 130 is fixed to the first magnet seating portion 141a. The bottom surface may face the second coil 230 in the optical axis direction.

The mounting groove 141-1 for the board may be provided on or at the top of any one of the second sides 142 of the housing 140.

In order to facilitate mounting of the board 190, the mounting groove 141-1 for the board may be in the form of a groove with an open top, a side and a bottom, and may have an opening that opens to the inside of the housing 140. You can. The bottom of the mounting groove 141-1 for the board may have a shape that corresponds to or matches the shape of the board 110.

The mounting groove 141-2 for the first position sensor may be provided at the bottom of the mounting groove 141-1 for the board. The first position sensor mounting groove 141-2 may have a structure that is recessed from the bottom of the board mounting groove 141-1.

In order to facilitate installation of the first position sensor 170, the mounting groove 141-2 for the first position sensor may be in the form of a groove with an open top and a side and a bottom, and may be formed in the first position sensor 141-2 of the housing 140. 2 It may have an opening that opens to the inner surface of the side portion 142. The mounting groove 141-2 for the first position sensor may have a shape that corresponds to or matches the shape of the first position sensor 170.

Each of the first magnet 130 and the board 190 is fixed to the first magnet seating portion 141a of the housing 140 and the board mounting groove 141-1 by an adhesive member, such as epoxy or double-sided tape. You can. Additionally, the first position sensor 170 may be fixed to the first position sensor mounting portion 141-2 by an adhesive member.

Each of the first sides 141 of the housing 140 may be arranged parallel to a corresponding one of the side walls of the cover member 300. Additionally, the area of each of the first sides 141 of the housing 140 may be larger than the area of each of the second sides 142.

Each of the second sides 142 of the housing 140 may have a through hole 147 that forms a path through which the support member 220 passes. For example, the housing 140 may include a through hole 147 penetrating the upper part of the second side 142.

In another embodiment, the through hole provided in the second side of the housing 140 may have a structure that is recessed from the outer surface of the second side 142 of the housing 140, and at least a portion of the through hole is in the second side 142. It can be opened to the outer side of.

The number of through holes 147 of the housing 140 may be the same as the number of support members. One end of the support member 220 may pass through the hole 147 and be connected or bonded to the upper elastic member 150.

Additionally, in order to prevent direct collision with the inner surface of the upper end of the cover member 300 shown in FIG. 1, the housing 140 may be provided with stoppers 144-1 to 144-4 at the upper end.

For example, stoppers 144-1 to 144-4 may be provided on the upper surfaces of each of the second sides 142 of the housing 140.

The housing 140 may include at least one upper support protrusion 143 coupled to the outer frame 152 of the upper elastic member 150.

The upper support protrusion 143 of the housing 140 may be formed on the upper surface of at least one of the first side 141 or the second side 142 of the housing 140. For example, the upper support protrusion 143 of the housing 140 may be provided on the upper surfaces of the second sides of the housing 140, but is not limited thereto.

The housing 140 may have a lower support protrusion (not shown) on its lower surface that is coupled to and fixed to the outer frame 162 of the lower elastic member 160.

The housing 140 is located at the bottom or bottom of the second side 142 not only to form a path through which the support member 220 passes, but also to secure a space to fill with gel-type silicone that can play a damping role. It may be provided with a groove (142a) formed. That is, in order to alleviate the vibration of the support member 220, the groove 142a of the housing 140 may be filled with a damping member, for example, silicon.

The housing 140 may be provided with at least one stopper 149 protruding from the outer surface of the first sides 141, and the at least one stopper 149 may be provided when the housing 140 is positioned at the second and/or second stopper 149. Collision with the cover member 300 can be prevented when moving in three directions.

In order to prevent the lower surface of the housing 140 from colliding with the base 210 and/or the circuit board 250, the housing 140 may further include a stopper (not shown) protruding from the lower surface.

At the initial position of the AF movable unit, the first magnets 130-1 to 130-4 may be disposed in the housing 140 so that at least a portion overlaps the first coil 120 in a direction perpendicular to the optical axis OA. .

For example, the first magnets 130-1 to 130-4 may be inserted or disposed within a corresponding seating portion 141a of the first sides 141 of the housing 140.

In another embodiment, the first magnets 130-1 to 130-4 are disposed on the outer surface of the first sides 141 of the housing 140, or on the second sides 142 of the housing 140. It may be placed on the inner or outer side of.

The shape of each of the first magnets 130-1 to 130-4 may be a rectangular parallelepiped shape corresponding to the first side 141 of the housing 140, but is not limited thereto, and in another embodiment, the One side of the first magnet facing one side of the first coil 120 may correspond to or coincide with the curvature of one side of the first coil 120.

Each of the first magnets 130 may be composed of one body, and may be arranged so that the side facing the first coil 120 is the S pole, and the side opposite to it is the N pole. However, this is not limited, and the side of each of the first magnets 130-1 to 130-4 facing the first coil 120 may be an N pole, and the side opposite to it may be an S pole.

At least two of the first magnets 130-1 to 130-4 may be arranged or installed on the first sides of the housing 140 to face each other.

For example, two pairs of first magnets 130 - 1 to 130 - 4 that face each other so as to intersect may be disposed on the first sides 141 of the housing 140 . At this time, the planar shape of each of the first magnets 130-1 to 130-4 may be approximately square, or alternatively, it may be triangular or diamond-shaped.

In another embodiment, only a pair of first magnets facing each other may be disposed on first sides of the housing 140 facing each other.

FIG. 7 is a cross-sectional view of the lens driving device 100 shown in FIG. 2 cut in the AB direction, and FIG. 8 is a cross-sectional view of the lens driving device 100 shown in FIG. 2 cut in the CD direction.

Referring to FIGS. 7 and 8, each of the second and third magnets 180 and 185 in the direction 701 perpendicular to the optical axis OA may not overlap with the first coil 120, but is limited to this. It doesn't work.

Additionally, at the initial position of the AF movable unit, the second magnet 180 may overlap or be aligned with the third magnets 180 and 185 in a direction perpendicular to the optical axis OA.

Additionally, the first position sensor 170 may overlap each of the second and third magnets 180 and 185 in a direction perpendicular to the optical axis OA at the initial position of the AF movable unit, but is not limited thereto. In another embodiment, the first position sensor 170 may not overlap with at least one of the second and third magnets 180 and 185 in a direction perpendicular to the optical axis OA.

Next, the first position sensor 170 and the board 190 will be described.

FIG. 6A shows an enlarged view of the board 190 and the first position sensor 170 shown in FIG. 5, and FIG. 6B shows a configuration diagram of the first position sensor 170 shown in FIG. 6A.

Referring to FIGS. 6A and 6B , the first position sensor 170 is mounted on the board 190 disposed in the housing 140 and may be fixed to the housing 140. For example, the first position sensor 170 may move together with the housing 140 during hand shake correction.

The first position sensor 170 can monitor the strength of the magnetic field of the second magnet 180 mounted on the bobbin 110 according to the movement of the bobbin 110, and output an output signal according to the detected result. there is.

In the embodiment of Figure 1, the first position sensor 170 detects the displacement of the bobbin 110 by detecting the strength of the magnetic field of the second magnet 180, but is not limited thereto. In another embodiment, the second and The third magnets may be omitted, and an output signal may be generated according to the result of detecting the strength of the magnetic field of the first magnets of the first position sensor 170, and this output signal may be used to determine the displacement of the bobbin 110. Can be sensed or controlled.

The first position sensor 170 may be placed on the bottom of the board 190. Here, the lower surface of the board 190 is the side of the board 190 that faces the upper surface of the housing 140 when the board 190 is mounted on the housing 140, or the mounting groove 141 for the board of the housing 140. 1) It may be a surface in contact with 1).

Referring to FIG. 6B, the first position sensor 170 may include a Hall sensor 61 and a driver 62.

For example, the Hall sensor 61 may be made of silicon-based material, and as the surrounding temperature increases, the output (VH) of the Hall sensor 61 may increase.

Additionally, in another embodiment, the Hall sensor 61 may be made of GaAs, and the output (VH) of the Hall sensor 61 may have a slope of about -0.06%/°C with respect to the ambient temperature.

The first position sensor 170 may further include a temperature sensing element 63 capable of detecting the ambient temperature. The temperature sensing element 63 may output a temperature sensing signal (Ts) according to the result of measuring the temperature around the first position sensor 170 to the driver 62.

For example, the Hall sensor 61 of the first position sensor 190 may generate an output according to the result of detecting the strength of the magnetic force of the first magnets 130-1 to 130-4.

The driver 62 may output a driving signal (dV) for driving the Hall sensor 61 and a driving signal (Id1) for driving the first coil 120.

For example, the driver 62 receives a clock signal (SCL), a data signal (SDA), and a power signal (VCC, GND) from the control unit 830 using data communication using a protocol, for example, I2C communication. can do.

The driver 62 uses a clock signal (SCL) and power signals (VCC, GND) to provide a driving signal (dV) for driving the Hall sensor 61 and a driving signal for driving the first coil 120. (Id1) can be generated.

Additionally, the driver 62 receives the output (VH) of the Hall sensor 61, and uses data communication using a protocol, for example, I2C communication, to provide information about the output (VH) of the Hall sensor 61. A clock signal (SCL) and a data signal (SDA) may be transmitted to the control unit 830.

In addition, the driver 62 receives the temperature detection signal (Ts) measured by the temperature sensing element 63, and sends the temperature detection signal (Ts) to the control unit using data communication using a protocol, for example, I2C communication. It can be sent to (830).

The control unit 830 may perform temperature compensation for the output VH of the Hall sensor 61 based on the change in ambient temperature measured by the temperature sensing element 63 of the first position sensor 170.

For example, when the driving signal (dV) or bias signal of the Hall sensor 61 is 1 [mA], the output (VH) of the Hall sensor 61 of the first position sensor 170 is -20 [mV] ~ It may be +20[mV].

And in the case of temperature compensation for the output (VH) of the Hall sensor 61, which has a negative slope with respect to changes in ambient temperature, the output (VH) of the Hall sensor 61 of the first position sensor 170 is 0 [ mV] to +30[mV].

When displaying the output of the Hall sensor 61 of the first position sensor 170 in the xy coordinate system, the output range of the Hall sensor 61 of the first position sensor 170 is set to the first quadrant (e.g., 0 [mV]) The reason for setting it to +30[mV]) is as follows.

As the ambient temperature changes, the output of the Hall sensor 61 in the first quadrant of the xy coordinate system and the output of the Hall sensor 61 in the third quadrant move in opposite directions, so both the first and third quadrants are used for AF. This is because the accuracy and reliability of the Hall sensor may decrease when used as a drive control section. In order to accurately compensate for changes in ambient temperature, a certain range in the first quadrant can be set as the output range of the Hall sensor 61 of the first position sensor 170.

The first position sensor 170 has first to third terminals for a clock signal (SCL) and two power signals (VCC, GND), a fourth terminal for data (SDA), and a first coil (120). ) may include fifth and sixth terminals for providing a driving signal to the terminal.

The first to sixth terminals of the first position sensor 170 may be electrically connected to a corresponding one of the pads 190-1 to 190-6 of the board 190.

The board 190 may include first to sixth pads 190-1 to 190-6 provided on the top surface, and a circuit pattern or wiring (not shown).

Referring to FIG. 6A, the board 190 includes a body portion 190-1, a first bent portion 190-2 bent at one end of the body portion 190-1, and a body portion 190-2. It may include a second bent portion 190-3 bent at the other end.

For example, each of the first and second bent portions 190-2 and 190-3 may be bent in the same direction with respect to the body portion 190-1.

For example, the first and second bent parts 190-2 and 190-3 of the board 190 disposed in the board mounting groove 141-1 of the housing 140 are based on the body portion 190-1. It may be bent in a direction toward the edge of the second side 142 of the housing 140.

For example, the board 190 disposed in the housing 140 may include a first side 6a facing the optical axis OA, and a second side 6b located opposite the first side 6a, The first side 6a of the board 190 may be flat, and the second side 6b of the board 190 may be bent.

In FIG. 6A, the board 190 has both ends bent to facilitate bonding with the upper elastic members, but the board 190 is not limited to this. In another embodiment, the board 190 may have a straight shape rather than a bent shape.

The first to sixth pads 190-1 to 190-6 may be arranged to be spaced apart from each other on the upper surface of the board 190 to facilitate electrical connection with the upper elastic member 150.

For example, the first pad 190-1 may be placed on one end of the first bent part 190-2 of the board 190, and the first pad 190-1 may be placed on one end of the second bent part 190-3 of the board 190. A sixth pad 190-6 may be disposed, and the second to fifth pads 190-2 to 190-5 may be disposed between the first pad 190-1 and the sixth pad 190-6. They can be placed spaced apart from each other.

The first to sixth pads 190-1 to 190-6 may be disposed in contact with the second side 6b of the board 190, which is used for bonding with the first to sixth upper elastic members. This is to secure space on the upper surface of the board 190.

The area of each of the first and sixth pads 190-1 and 190-6 may be larger than the area of each of the second to fifth pads 190-2 to 190-5, but is not limited thereto.

The upper elastic members bonded to the first and sixth pads 190-1 and 190-6 are larger in the housing 140 than the upper elastic members bonded to the second to fifth pads 190-2 to 190-5. Since the position where it is coupled to is far away, the purpose is to increase the bonding force with the upper elastic member by increasing the area of the pad.

The circuit pattern or wiring (not shown) of the board 190 electrically connects the first to sixth pads 190-1 to 190-6 and the first to sixth terminals of the first position sensor 170. , may be provided on at least one of the lower and upper surfaces of the board 190, but is not limited thereto.

For example, board 190 may be a printed circuit board, or FPCB.

In another embodiment, the first position sensor 170 may be disposed on the upper surface of the board 190, and the pads 190-1 to 190-4 may be provided on the lower surface of the board 190.

The first to sixth pads 190-1 to 190-6 of the board 190 may be electrically connected to terminals of the circuit board 250 by the upper elastic member 150 and the support member 220. , As a result, the first position sensor 170 can be electrically connected to the circuit board 250.

Next, the upper elastic member 150, lower elastic member 160, and support member 220 will be described.

FIG. 9A shows a top view of the upper elastic member 150 shown in FIG. 1, and FIG. 9B shows a first outer frame of the sixth and seventh upper elastic members 150-6 and 150-7 shown in FIG. 9A. Shows an enlarged view of 152a, Figure 9c shows a top view of the lower elastic member 160 shown in Figure 1, Figure 10 shows the upper elastic member 150, the lower elastic member 160 shown in Figure 1, It shows a perspective view of the base 210, the support member 220, the second coil 230, and the circuit board 250 combined, and FIG. 11 shows the second coil 230 and the circuit board 250 shown in FIG. 1. , shows an exploded perspective view of the base 210, and the second position sensors 240a and 240b.

The upper elastic member 150 and the lower elastic member 160 support the bobbin 110 by elasticity.

The upper elastic member 150 may be coupled to the upper part of the bobbin 110 and the upper part of the housing 140, and may support the upper part of the bobbin 110 and the upper part of the housing 140. The lower elastic member 160 is connected to the lower portion of the bobbin 110 and the lower portion of the housing 140 and may support the lower portion of the bobbin 110 and the lower portion of the housing 140.

The support member 220 can support the housing 140 to be movable in a direction perpendicular to the optical axis with respect to the base 210, and includes at least one of the upper or lower elastic members 150 and 160 and the circuit board 250. It can be connected electrically.

Referring to FIG. 9A, the upper elastic member 150 may include a plurality of upper springs 150-1 to 150-8 that are electrically separated from each other. Figure 9a shows eight electrically separated upper springs, but is not limited thereto.

The upper elastic member 150 includes first to sixth upper springs 150-1 to 150 that are directly bonded and electrically connected to the first to sixth pads 191-1 to 191-6 of the board 190. -6), and the seventh and eighth upper springs 150-7 and 150-8 that are not electrically connected to the first to sixth pads 191-1 to 191-6 of the board 190. It can be included.

A plurality of upper springs may be disposed on the first corner of the housing 140 where the board 190 is disposed, and at least one upper spring may be disposed on each of the second to fourth corner portions excluding the first corner portion. It can be.

Referring to FIGS. 2, 5, 9A, and 10, four upper springs 150-1 to 150-4 may be disposed at the first corner of the housing 140, and the second corner portion may be Two upper springs 150-5 and 150-8 may be disposed in the third corner, one upper spring 150-6 may be disposed in the fourth corner, and one upper spring may be disposed in the fourth corner. This can be placed. This is to allow the upper springs 150-1 to 150-6 to be easily bonded to the six pads 190-1 to 190-6 of the board 190.

One of the upper springs 150-1, 150-6, 150-7, and 150-8 disposed at each of the first to fourth corner portions of the housing 140 is connected to the upper part of the housing 140 and the bobbin 110. It can be combined with the upper part of .

At least one of the first to fourth upper springs 150-1 to 150-4, and at least one of the fifth to eighth upper springs 150-5 to 150-8 are coupled to the bobbin 110. The first inner frame 151, the first outer frame 152 coupled to the corresponding one of the first to fourth corner portions of the housing 140a, and the first inner frame and the first outer frame connecting the first inner frame and the first outer frame. 1 May include a frame connection portion 153.

For example, one of the upper springs 150-1, 150-6, 150-7, and 150-8 disposed in each of the first to fourth corner portions of the housing 140 is the first spring coupled to the bobbin 110. It may include an inner frame 151, a first outer frame 152 coupled to the housing 140, and a first frame connection portion 153 connecting the first inner frame 151 and the first outer frame 152. You can.

For example, the first inner frame 151 may be provided with a through hole h1 for coupling to the upper support protrusion 113a of the bobbin 110, and the first outer frame 152 may be provided with the upper support protrusion 140. A through hole (h2) may be provided to be coupled to the protrusion 143.

For example, the first to fourth upper springs 150-1 to 150-4 are arranged to be spaced apart from each other at the first corner of the housing 140 where the board 190 is disposed, and the first to fourth upper springs 150-1 to 150-4 are disposed at a distance from each other at the first corner of the housing 140 where the board 190 is disposed. It can be combined with the corner part.

For example, the second and third upper springs 150-2 and 150-3 may be located or disposed between the first upper spring 150-1 and the fourth upper spring 150-4.

For example, the fifth and sixth upper springs 150-5 and 150-6 are disposed in a corresponding one of the second and third corner parts adjacent to the first corner part, and the second and third corner parts It can be combined with any of the corresponding ones.

For example, the seventh upper spring 150-7 may be disposed in the fourth corner of the housing 140 diagonally opposite the first corner and coupled to the fourth corner.

For example, the eighth upper spring 150-8 may be disposed in any one of the second to third corner parts and may be coupled to any one of the second to third corner parts.

Referring to FIG. 9A, each of the first to fourth upper springs 150-1 to 150-4 disposed at the first corner of the housing 140 is coupled to the first corner of the housing 140. It may include 1 coupling portion (410a to 410d).

The first to sixth pads 191-1 to 191-6 of the board 190 are respectively attached to the first coupling portions 410a to 410d of the first to fourth upper springs 150-1 to 150-4. Contact parts (P2 to P5) that contact or are connected to a corresponding one of the contact parts (P2 to P5) may be provided.

Each of the contact parts P2 to P5 may extend or protrude from a corresponding end of the first coupling parts 410a to 410d, and may be connected to a corresponding end of the board 190 by soldering or a conductive adhesive member. Can be bonded to pad.

One end of the first outer frame of each of the first and second upper springs 150-1 and 150-3 has a third spring coupled to one end of the first and second support members 220-1 and 220-2. A coupling portion 590 may be provided.

The second and third upper springs 150-2 and 150-3 may be disposed between the first and fourth upper springs 150-1 and 150-4. The second and third upper springs 150-2 and 150-3 each have second coupling portions 430a and 430b and first coupling portions 410b and 410c coupled to the second and third support members, respectively. It may include connecting portions 420a and 420b that connect the second coupling portions 430a and 430b to each other.

The first outer frame 152 of each of the fifth to eighth upper springs 150-5 to 150-8 disposed at the second to fourth corner portions of the housing 140 is disposed at the second to fourth corner portions of the housing 140. First coupling parts 510, 560, 570 coupled to the fourth corner portions, second coupling parts 520a, 520b, 570a coupled to the fifth to eighth support members 220-5 to 220-8, 570b), and connection portions 530a, 530b, 580a, and 580b connecting the first coupling portions 510, 560, and 570 and the second coupling portions 520a, 520b, 570a, and 570b.

The fifth to eighth support members 220-5 to 220-8 are connected to the second coupling portions 520a, 520b, 570a, 570b by soldering or a conductive adhesive member (e.g., conductive epoxy) (901, see FIG. 10). ) can be electrically connected to.

First outer frames of the first to fourth upper elastic members 150-1 to 150-4, and first outer frames of the fifth to eighth upper elastic members 150-5 to 150-8 (152, 152a, 152b) Each of the first coupling portions 410a to 410d, 510, 560, and 570 may include one or more coupling regions (e.g., S1 to S8) coupled to the housing 140. .

In FIG. 9A, the coupling regions S1 to S8 may be implemented in the form of through holes, and the second coupling portions 420a, 420b, 520a, 520b, 570a, 570b, and the third coupling portion 590 have through holes. However, it is not limited to this, and in other embodiments, it may be implemented in various shapes sufficient to be combined with the housing 140, such as a groove shape.

The connection portions 430a, 430b, 530a, 530b, 580a, and 580b may be bent at least once, and the width W2 of the connection portions 430a, 430b, 530a, 530b, 580a, and 580b is the upper elastic member 150. ) may be narrower than the width (W1) of the first frame connection portion 153 (W2<W1).

Because W2<W1, the connecting portions 430a, 430b, 530a, 530b, 580a, and 580b can be easily moved in the optical axis direction, thereby reducing the stress applied to the upper elastic member 150 and the support member 220. The stress applied to can be distributed.

In the embodiment, the width W1 of the first frame connection portion 153 of the upper elastic member 150 is wider than the width of the second frame connection portions 163-1 and 163-2 of the lower elastic member 160. The example is not limited to this.

For example, the first outer frames 152 of the sixth and seventh upper springs 150-6 and 150-6 may be left and right symmetrical with respect to the reference lines 501 and 502.

Also, for example, the first outer frames of the fifth and eighth upper springs 150-5 and 150-8 may be left and right symmetrical with respect to the reference line 501.

The reference line 501 may be a straight line passing through the center point 101 (see FIG. 9A) and the corners of the second and third corner portions of the housing 140, and the reference line 502 may be a straight line passing through the center point 101 (see FIG. 9A). It may be a straight line passing through the corners of the first and fourth corner portions of the housing 140 and the housing 140 facing each other. For example, the center point 101 may be the center of the bobbin 110 or the center of the housing 140, and the corners of the housing 140 may be stoppers 144-1 to 144-4.

For example, in order to support the housing 140 in a balanced manner so that it is not biased to one side, the first coupling portions 410a to 410d, 510, 560, 570 of the first to eighth upper elastic members 150-1 to 150-8 ) may be left-right symmetrical with respect to the reference lines 501 and 502, but are not limited thereto.

The fifth upper spring 150-5 disposed at the second corner portion is a first upper extension frame 154a extending from one end of the first coupling portion 570 of the first outer frame 152a toward the first corner portion. may include. For example, one end of the first upper extension frame 154a may be connected to the first outer frame 152a, and the other end may be connected to the pad 190-1.

In addition, the sixth upper spring 160-6 disposed at the third corner portion is a second upper extension frame 154b extending from one end of the first coupling portion 510 of the first outer frame 152 toward the first corner portion. ) may include. For example, one end of the second upper extension frame 154b may be connected to the first outer frame 152 and the other end may be connected to the pad 190-6.

Each of the first and second upper extension frames 154a and 154b has contact portions ( P1, P6) can be provided.

For example, each of the contact portions P1 and P6 may extend or protrude from a corresponding end of one of the first and second upper extension frames 154a and 154b, and may be connected to the board 190 by soldering or a conductive adhesive member. ) may be bonded to a corresponding one of the first and sixth pads 191-1 and 191-6. For example, the width of each of the contact portions P1 to P6 may be narrower than the width of the outer frame of the corresponding upper spring, but is not limited thereto.

A through hole h3 coupled to the upper support protrusion of the housing 140 may be provided in each of the first and second upper extension frames 154a and 154b.

The first coupling portions 410a to 410d, 510, 560, and 570 may contact the upper surfaces of the corner portions 142 of the housing 140 and may be supported by the corner portions 142 of the housing 140. there is. On the other hand, the connection portions 430a, 430b, 530a, 530b, 580a, and 580b do not contact the upper surface of the housing 140 and may be spaced apart from the housing 140. Additionally, in order to prevent oscillation due to vibration, a damper (not shown) may be filled in the empty space between the connection parts 430a, 430b, 530a, 530b, 580a, 580b and the housing 140.

Referring to FIG. 9C, the lower elastic member 160 may include a plurality of lower springs 160-1 and 160-2.

For example, the first and second lower springs 160-1 and 160-2 each have second inner frames 161-1 and 161-2 coupled to or fixed to the lower part of the bobbin 110. ), second outer frames 162-1 to 162-3, second inner frames 161-1, 161-2, and second outer frames 162 coupled or fixed to the lower part of the housing 140. -1, 162-2) to each other, and may include connection frames (164-1, 164-2) to connect the second outer frames to each other. You can.

The width of each of the connecting frames 164-1 and 164-2 may be smaller than the width of each of the first inner frames, but is not limited thereto.

The connection frames 164-1 and 164-2 are connected to the second coils 230-1 to 230-2 to avoid spatial interference with the second coils 230 and the first magnets 130-1 to 130-4. 4) and located outside the second coils (230-1 to 230-4) and the first magnets (130-1 to 130-4) with respect to the first magnets (130-1 to 130-4) can do. At this time, the outside of the second coils 230-1 to 230-4 and the first magnets 130-1 to 130-4 are the second coils 230-1 to 230-4 and the first magnets. It may be opposite to the area where the center of the bobbin 110 or the center of the housing 140 is located based on (130-1 to 130-4).

Also, for example, the connection frames 164-1 and 164-2 may be positioned so as not to overlap the second coils 230-1 to 230-4 in the optical axis direction, but are not limited thereto, and in other embodiments, At least a portion of the connection frames 164-1 and 164-2 may be aligned with or overlap the second coils 230-1 to 230-4 in the optical axis direction.

A first connection protrusion to which the other end of the first support member 220-1 is bonded is at a portion where the connection frame 164-1 of the first lower spring 160-1 and the second outer frame 162-2 are connected. (165-1) can be provided.

A second connection protrusion 165-2 to which the other end of the fourth support member 220-4 is bonded may be provided at a portion where the connection frame of the second lower spring 160-2 and the second outer frame are connected. . Each of the first and second connection protrusions 165-1 and 165-2 has a hole 165a for coupling the other end of the first and fourth support members 220-1 and 220-4. ) can be provided.

The upper springs 150-1 to 150-8 and the lower springs 160-1 and 160-2 may be made of leaf springs, but are not limited thereto and may be implemented as coil springs, etc.

Next, the support members 220-1 to 220-8 will be described.

The support members 220-1 to 220-8 may be arranged to correspond to the corner portions 142 of the housing 140, and two of the upper springs 150-1 to 150-8 (e.g., 150-8) may be disposed to correspond to the corners 142 of the housing 140. -1, 150-4) and the first and second lower springs 160-1, 160-2 can be connected to each other, and the other four of the upper springs 150-1 to 150-8 (e.g., 150-2, 150-3, 150-5, 150-6) and the circuit board 250 can be connected to each other.

For example, the first and second support members (220-2, 220-3) are two (150-2, 150) of the four upper springs (150-1 to 150-4) located at the first corner portion. -3) and the circuit board 250 can be connected, and the third and fourth support members 220-1 and 220-4 are upper springs 150-1 to 150-4 located at the first corner portion. ) of the other two (150-1, 150-4) and the first and second lower springs (160-1, 160-2) can be connected to each other.

Additionally, the fifth support member 220-5 may connect the upper spring 150-5 located at the second corner and the circuit board 250, and the sixth support member 220-6 may connect the upper spring 150-5 located at the second corner to the circuit board 250. The upper spring 150-6 located in the upper part and the circuit board 250 can be connected to each other, and the seventh support member connects the upper spring 150-7 located in the fourth corner part and the circuit board 250 to each other. It can be connected, and the eighth support member 220-8 can connect the upper spring 150-8 located at the second corner and the circuit board.

The support members 220-1 to 220-8 may electrically connect at least one of the upper springs located at at least one of the corner portions to the circuit board.

For example, the support members 220-2, 220-3, 220-5, and 220-6 support the upper springs 150-2, 150-3, 150-5, and 150-6 and the circuit board 250. They can be electrically connected to each other.

The support members 220-1 to 220-8 are spaced apart from the housing 140 and are not fixed to the housing 140, but support members 220-2, 220-3, 220-5 to 220-8 ) one end of the second coupling portions (420a, 420b, 520a, 520b, 570a) of the second, third, fifth to eighth elastic members (150-2, 150-3, 150-5 to 150-8) , 570b) is directly connected or bonded.

Additionally, other ends of the support members 220-2, 220-3, 220-5 to 220-8 may be directly connected to or bonded to the circuit board 250.

One end of the support members 220-1 and 220-4 is directly connected or bonded to the third coupling portion 590 of the first and fourth upper springs 220-1 and 220-4.

The other ends of the support members 220-1 and 220-4 have through holes 165a provided in the first and second connection protrusions 165-1 and 165-2 of the lower springs 160-1 and 160-2. ) can be directly connected or bonded to.

Between the second coupling portions (420a, 420b, 520a, 520b, 570a, 570b) and the first coupling portions (410b, 410c, 510, 560, 570) by the connecting portions (430a, 430b, 530a, 530b, 580a, 580b) A single contact may be formed.

For example, the support members 220-2, 220-3, 220-5 to 220-8 may pass through the through hole 147 (see FIG. 4) provided in the corner portion 142 of the housing 140. The members 220-1 and 220-4 may be disposed adjacent to the boundary line between the first side 141 and the corner portion 142 of the housing 140, and define the corner portion 142 of the housing 140. It may not pass.

Each of the support members 220-1 to 220-4 may independently electrically connect the first to fourth upper elastic members 150-1 to 150-4 and the circuit board 250.

In order to support the housing 140 in a balanced manner through symmetrical arrangement, each of the sixth and seventh support members 220-6 and 220-7 includes a sixth upper elastic member 150-6 or a seventh upper elastic member. It may include two support members (220-6a and 220-6b, or 220-7a and 2207b) connected or bonded to the member (150-7), and two support members (220-6a and 220- At least one of 6b, or 220-7a and 2207b) may be electrically connected to the circuit board 250.

The first coil 120 may be directly connected to or bonded to a corresponding one of the second inner frames of the first and second lower springs 160-1 and 160-2.

The four pads (191-1, 191-3, 191-4, 191-6) of the board 190 have four corresponding upper springs (150-5, 150-2, 150-3, 150- 6), and support members (220-5, 220-2, 220-3, 220-6) electrically connected to the four upper springs (150-5, 150-2, 150-3, 150-6) ) can be electrically connected to the circuit board 250.

In addition, the two pads 191-2 and 191-5 of the board 190 have corresponding two upper springs 150-1 and 150-4, and two upper springs 150-1 and 150. -4) and can be electrically connected to the first coil 120 by the support members 220-1 and 220-4, and the first and second lower springs 160-1 and 160-2. there is.

The six pads 191-1 to 191-6 of the board 190 and the first position sensor 190 are electrically connected, and four of the six pads 191-1 to 191-6 (e.g. , 191-1, 191-3, 191-4, 191-6) may be electrically connected to the circuit board 250. Four pads (e.g., 191-1, 191-3, 191-4, 191-6) of the board 190, and upper springs (150-2, 150-3, 150-5, 150-) connected thereto. 6), and a clock signal (SCL) for data communication between the first position sensor 170 and the circuit board 250 through the support members 220-2, 220-3, 220-5, and 220-6. , power signals (VCC, GND) can be transmitted and received.

The support member 220 may be implemented as a member capable of supporting elasticity, for example, a suspension wire, a leaf spring, or a coil spring. Additionally, in another embodiment, the support member 220 may be formed integrally with the upper elastic member 150.

In the embodiment of FIG. 10, the second and fifth pads 191-2 and 191-5 of the board 190 are connected to the first and fourth support members 220-1 and 220-4. By being connected to the second lower springs, it is connected to the first coil 120, but is not limited to this.

In another embodiment, the first coil 120 may be bonded to the first inner frames of any two of the upper springs 150-2, 150-5, and 150-6, and the first and fourth support members (220-1, 220-4) may be omitted.

In another embodiment, one end of the first coil 120 may be bonded to the second inner frame of any one of the first and second lower springs 160-1 and 160-2, and the first coil 120 ) The remaining end may be bonded to the first inner frame of any one of the upper springs 150-2, 150-5, and 150-6, and the first and fourth support members 220-1 and 220- At least one of 4) may be provided.

Next, the base 210, the circuit board 250, and the second coil 230 will be described.

Referring to FIG. 11, the base 210 may have a hollow corresponding to the hollow of the bobbin 110 and/or the hollow of the housing 140, and may have a shape that matches or corresponds to the cover member 300, for example. , may have a square shape.

The base 210 may be provided with a step 211 on which adhesive can be applied when fixing the cover member 300 by adhesive. At this time, the step 211 may guide the cover member 300 coupled to the upper side, and the lower end of the side plate of the cover member 300 may contact the step 211.

The step 211 of the base 210 and the lower end of the side plate of the cover member 300 may be bonded or fixed with an adhesive or the like.

A support portion 255 may be provided in an area of the base 210 facing the terminal 251 of the circuit board 250. The support portion 255 may support the terminal surface 253 of the circuit board 250 on which the terminal 251 is formed.

The base 210 may have a groove 212 in an area corresponding to the edge of the cover member 300. When the edge of the cover member 300 has a protruding shape, the protrusion of the cover member 300 may be fastened to the base 210 in the second groove 212.

In addition, the upper surface of the base 210 may be provided with seating grooves 215-1 and 215-2 in which the second position sensor 240 including the OIS position sensors 240a and 240b can be placed. . A seating portion (not shown) where the filter 610 of the camera module 200 is installed may be formed on the lower surface of the base 210.

The second coil 230 may be disposed on the upper part of the circuit board 250, and the OIS position sensors 240a and 240b may be located in the seating grooves 215-1,215 of the base 210 located below the circuit board 250. -2) It can be placed within.

The OIS position sensors 240a and 240b can detect the displacement of the OIS moving part in a direction perpendicular to the optical axis. Here, the OIS movable part may include an AF movable part and components mounted on the housing 140.

For example, the OIS movable unit may include an AF movable unit and the housing 140, and may further include magnets 130-1 to 130-4 depending on the embodiment. For example, the AF movable unit may include the bobbin 110 and components mounted on the bobbin 110 and moving together with the bobbin 110. For example, the AF movable unit may include a bobbin 110, a lens (not shown) mounted on the bobbin 110, and a first coil 120.

The circuit board 250 is disposed on the upper surface of the base 210 and may have a hollow corresponding to the hollow of the bobbin 110, the hollow of the housing 140, or/and the hollow of the base 210. . The shape of the outer peripheral surface of the circuit board 250 may be consistent with or correspond to the upper surface of the base 210, for example, a square shape.

The circuit board 250 is bent from the upper surface and may have a plurality of terminals 251 for receiving electrical signals from the outside, or at least one terminal surface 253 provided with pins. .

The second coil 230 is disposed on the upper part of the circuit board 250 to face the magnets 130-1 to 130-4 fixed to the housing 140 in the optical axis direction.

The second coil 230 may include four second coils 230-1 to 230-4 installed on four sides of the square circuit member 231. For example, the second coil 230 includes two second coils 230-1 and 230-3 for the second direction and two second coils 230-2 and 230-4 for the third direction. It can be done, but it is not limited to this. In another embodiment, the second coil 230 may include only one second coil for the second direction and one second coil for the third direction, or may include four or more second coils.

The housing 140 is moved in the second and/or third direction by interaction between the magnets 130-1 to 130-4 and the second coils 230-1 to 230-4 arranged to face each other. , may move in the x-axis and/or y-axis direction, and thereby camera shake correction may be performed.

In FIG. 11, the second coils 230-1 to 230-4 are implemented in a form provided on a circuit member 231 separate from the circuit board 250, but are not limited thereto, and in another embodiment, the second coils 230-1 to 230-4 The coils 230 - 1 to 2130 - 4 may be implemented in the form of a ring-shaped coil block, or in the form of an FP coil, or in the form of a circuit pattern formed on the circuit board 250 .

The second coil 230 may include a through hole 230a penetrating the circuit member 231, and the support members may be electrically connected to the circuit board 250 through the through hole 230a.

Each of the OIS position sensors 240a and 240b may be a Hall sensor, and any sensor that can detect the magnetic field strength can be used. For example, each of the position sensors 240a and 240b may be implemented in the form of a driver including a Hall sensor, or may be implemented solely as a position detection sensor such as a Hall sensor.

Terminals 251 may be provided on the terminal surface 253 of the circuit board 250.

Signals (SCL, SDA, VCC, GND) for data communication with the first position sensor 190 can be transmitted and received through a plurality of terminals 251 installed on the terminal surface 253 of the circuit board 250, , driving signals can be supplied to the OIS position sensors 240a and 240b, and signals output from the OIS position sensors 240a and 240b can be received and output to the outside.

According to the embodiment, the circuit board 250 may be provided as an FPCB, but this is not limited, and the terminals of the circuit board 250 may be formed directly on the surface of the base 210 using a surface electrode method, etc. do.

In the embodiment, since the drive signal is directly provided from the first position sensor 170 to the first coil 120 through the support members 220-1 and 220-4, the first signal is provided through the circuit board 250. Compared to the case where a driving signal is provided to one coil, the number of support members can be reduced and the electrical connection structure can be simplified.

Additionally, since the first position sensor 170 can be implemented as a driver IC capable of measuring temperature, the output of the Hall sensor is compensated to have a minimum change according to temperature change, or the output of the Hall sensor is made to have a constant slope according to temperature change. By compensating, the accuracy of AF driving can be improved regardless of temperature changes.

FIG. 12 shows a perspective view of the lens driving device 100-1 according to another embodiment, and FIG. 13A shows an exploded perspective view of the housing 140a and the board 190a on which the first position sensor 170 is mounted. FIG. 13B shows a combined perspective view of the housing 140a, the first position sensor 170, and the board 190a, and FIG. 14 shows a combined perspective view of the board and the first position sensor.

12 to 14, the lens driving device 100-1 includes a bobbin 110, a first coil 120, a first magnet 130, a housing 140a, and an upper elastic member 150A. , a lower elastic member 160A, a first position sensor 170, a second magnet 180, a board 190a, and a support member 220A.

In addition, the lens driving device 100-1 includes a third magnet 185, a second coil 230, second position sensors 240a and 240b, a circuit board 250, a base 210, and a cover member ( 300) may further be included.

Referring to FIG. 14, the board 190a includes a body 3, first and second protrusions 4a and 4b, and first to sixth pads 5a to 5f.

For example, the body 3 may be disposed parallel to the inner surface of the first corner portion, and the first and second protrusions 4a and 4b may be disposed parallel to the upper surface of the first corner portion.

The body 3 includes an upper part 3a and a lower part 3b.

The upper part 3a of the body 3 may include a portion whose width or length in the horizontal direction decreases from top to bottom. This is to stably seat or place the body 3 in the housing 140a so that the body 3 coupled to the housing 140a does not move downward due to gravity.

The width or horizontal length of the lower end 3b of the body 3 may be constant, and may be equal to or smaller than the width or horizontal length of the upper end 3b of the body 3.

The first position sensor 170 may be disposed on one side (eg, front side) of the body 3.

13A and 13B, the first position sensor 170 is disposed on the front side of the body 3 facing the outer peripheral surface of the bobbin 110, but the first position sensor 170 is not limited to this. In another embodiment, the first position sensor 170 may be placed on the rear side of the body 3 facing the inner surface of the housing 140, and in this case, the housing 140 is seated or It may be disposed and provided with a guide groove that allows the first position sensor 170 to move in the optical axis direction as the bobbin 110 moves. At this time, the guide groove provided in the housing 140 may be structured to support or guide the first position sensor 170 in order to set the initial position of the first position sensor 170.

The first protrusion 4a is disposed at one end of the upper end 3a of the body 3, and the second protrusion 4a is disposed at the other end of the upper end 3a of the body 3.

For example, the first protrusion 4a is connected to one end of the upper surface of the upper part 3a of the body 3, is bent at one end of the upper surface of the upper part 3a of the body 3, and covers the rear of the body 3. As a standard, it may be a structure that protrudes from the front to the back of the body 3.

For example, the second protrusion 4b is connected to the other end of the upper surface of the upper part 3a of the body 3, is bent at the other end of the upper surface of the upper part 3a of the body 3, and covers the rear of the body 3. As a standard, it may be a structure that protrudes from the front to the back of the body 3.

The second and third pads 5b and 5c may be disposed on the upper surface of the upper end 3a of the body 3 to be spaced apart from each other, and the first and fourth pads 5a and 5d may be disposed on the upper surface of the upper end 3a of the body 3, respectively. It may be disposed on a corresponding one of the second protrusions 4a and 4b.

In order to facilitate bonding between the first and second upper extension frames 154a and 154b and the first and fourth pads 5a and 5d, one end of each of the first and second protrusions 4a and 4b has It may be bent toward the first and second upper extension frames 154a and 154b.

In order to facilitate direct bonding with the first and second lower springs 160-1 and 160-2, the fifth and sixth pads 5e and 5f are located on the lower surface of the lower part 3a of the body 3. They can be placed spaced apart from each other.

In FIG. 5, the housing 140 has a mounting groove 141-2 for the first position sensor in which the first position sensor 170 is disposed, but the housing 140a in FIG. 12 has the first position sensor 170. It does not have an arranged groove.

Board seating grooves 141-1a and 141-2a in which the board 190a is seated or disposed may be provided at the top or top of any one of the corner portions 142 of the housing 140a.

For example, the first corner of the housing 140a includes a first groove 141-1a in which the first and second protrusions 4a and 4b are disposed, and a second groove in which the body 3 is disposed or seated ( 141-2a) can be provided.

The first groove 141-1a may be in the form of a groove with an open top, sides, and bottom, and may have an opening that opens to the inside of the housing 140.

In addition, the second groove 141-2a may have a structure that is recessed from the bottom of the first groove 141-1a, and in order to facilitate mounting of the first position sensor 170, a mounting groove for the first position sensor ( 141-2) may be in the form of a groove with an open top, sides, and bottom, and may have an opening that opens to the inner surface of the first corner portion 142 of the housing 140a.

The second groove 142-2 may have a portion whose diameter decreases from top to bottom so as to correspond to or have the same shape as the body 3 of the board 190a.

The housing 140a shown in FIGS. 13A and 13B does not have the stoppers 144-1 to 144-4 of the housing 140 shown in FIG. 4, but in another embodiment, the stopper 144 shown in FIG. 4 -1 to 144-4) may also be provided.

In addition, the through hole 47a of the housing 140a shown in FIGS. 13A and 13B has a partially open structure, but the structure is not limited thereto, and in another embodiment, it may be in the form of a through hole as shown in FIG. 4.

FIG. 15 shows the upper elastic member 150A shown in FIG. 12. The same reference numerals as in FIG. 9A indicate the same configuration, and the content described in FIG. 9A may be equally applied to the same configuration.

The upper elastic member 150A may include a plurality of upper springs 150-3, 150-5, 150-7, 150-8, 150-9, and 150-10.

In FIG. 10, because the six pads 191-1 to 191-6 of the board 190a disposed at the first corner of the housing 140 are directly bonded to the six upper springs, the first corner Four upper springs 150-1 to 150-4 spaced apart from each other may be disposed in the unit.

In Figure 15, the four pads 5a to 5d of the board 190a disposed at the first corner of the housing 140a are connected to the four upper springs 150-3, 150-5, 150-9, and 150-10. Since the structure is electrically connected to the first corner portion, two upper springs 150-9 and 150-10 spaced apart from each other may be disposed.

For example, the upper springs 150-9 and 150-10 may be disposed at the first corner of the housing 140a and may be connected to the pads 5b and 5c of the board 190a.

The upper spring 150-3 may be disposed in the second corner of the housing 140a and connected to the pad 4b of the board 190a.

The upper spring 150-5 may be disposed in the third corner of the housing 140a and connected to the pad 4a of the board 190a.

The upper spring 150-7 may be disposed at the fourth corner of the housing 140a.

The first and second lower springs 160-1 and 160-2 may be coupled to the pads 5e and 5f.

For example, the upper spring 150-9 of FIG. 15 may have a structure in which the first coupling portions 410a and 410b of the first and second upper springs 150-1 and 150-2 of FIG. 9A are connected to each other. , the upper spring 150-10 of FIG. 15 may have a structure in which the first coupling portions 410c and 410d of the third and fourth upper springs 150-3 and 150-4 of FIG. 9A are connected to each other, The contact portions P2 and P5 may be omitted.

The support member 220A of the embodiment of FIG. 15 may include support members 220-2, 220-3, 220-5 to 220-8, and the first and fourth upper springs 150 of FIG. 9A. -1, 150-4) and the support members 220-1, 220-4 connecting the first and second lower springs 160-1 and 160-2 may be omitted.

For example, the support members 220-2, 220-3, 220-5 to 220-8 may be disposed at the first to fourth corners of the housing 140a, and the upper springs 150-3 and 150 -5, 150-7, 150-8, 150-9, 150-10) and the circuit board 250 can be connected.

For example, the support members 220-2 and 220-3 may be disposed at the first corner and connect the circuit board to the corresponding one of the first and second upper springs 150-9 and 150-10. You can.

The support member 220-5 may be disposed at the second corner and connect the upper spring 150-5 and the circuit board 250.

The support member 220-6 may be disposed at the third corner and connect the upper spring 150-6 and the circuit board 250.

The support member 220-7 may be disposed at the fourth corner and connect the upper springs 150-7 and 150-8 and the circuit board 250. For example, two support members spaced apart from each other may be disposed at each corner of the housing 140a.

For example, the upper spring 150-10 may be coupled only to the first corner of the bobbin 110 and the first corner of the housing 140a, and the upper spring 150-9 may be coupled to the bobbin 110 and the housing ( It may be coupled to each of the first corners of 140a).

At least one of the upper springs 150-6 to 150-8 (e.g., 150-6 to 150-8) is connected to the bobbin 110, the first inner frame 151, and the first to fourth corner portions. It may include a first outer frame 152 coupled to a corresponding one, and a first frame connection portion 153 connecting the first inner frame 151 and the second outer frame 152.

Each of the first and second lower springs 160-1 to 160-2 includes a second inner frame 161 coupled to the bobbin 110, a second outer frame 162 coupled to the housing 140a, and It may include a second frame connection portion 163 connecting the second inner frame 161 and the second outer frame 162. Each of the pads 5e and 5f of the board 190a may be coupled to a corresponding one of the second outer frames of the first and second lower springs 161 and 162.

The upper spring 150-5 may include an upper extension frame 154a, one end of which is connected to the first outer frame of the upper spring 150-5, and the other end of which is connected to the pad 5a.

The upper spring 150-6 may include an upper extension frame 154b, one end of which is connected to the first outer frame of the upper spring 150-6, and the other end of which is coupled to the pad 5d of the board 190a. there is.

Each of the upper springs 150-9 and 150-10 of FIG. 15 may include a first coupling portion, a second coupling portion, and a connecting portion, and the first coupling portions 510, 560, and 570 described in FIG. 9A. , the description of the second coupling portions 520a, 520b, 570a, and 570b, and the connecting portions 530a, 530b, 580a, and 580b may be applied.

FIG. 16 shows the lower elastic member 160A of the embodiment shown in FIG. 12, and FIG. 17 shows the electrical connection between the first and second lower springs 160-1 and 160-2 and the pads of the board 190a. represents.

Referring to FIGS. 16 and 17, the lower elastic member 160A shown in FIG. 16 may have a structure in which the first and second connection protrusions 165-1 are omitted from the lower elastic member 160 of FIG. 9C. , the content described in Figure 9c can be applied in the same way.

Each of the fifth and sixth pads 4e and 4f of the board 190a is connected to a second outer frame 162-2 corresponding to one of the first and second lower springs 160-1 and 160-2. ) is connected or bonded to.

For example, each of the fifth and sixth pads 5e and 5f of the board 190a is connected to a corresponding one of the first and second lower springs 160-1 and 160-2 by soldering or a conductive adhesive member. It may be bonded to the through hole h6 provided in the second outer frame 162-2.

12, the first position sensor 170 includes upper springs 150-5, 150-6, 150-9, 150-10, and support members 220-2, 220-3, and 220. Signals for data communication can be transmitted to or received from the circuit board 250 through -5, 220-6).

Additionally, the first coil 120 is electrically connected to the first and second lower springs 160-1 and 160-2, and is connected to the fifth and sixth pads 5e and 5f of the board 190a. By directly connecting the first and second lower springs 160-1 and 160-2, the first position sensor 170 and the first coil 120 can be electrically connected, and the first position sensor 170 is A driving signal may be provided to the first coil 120.

FIG. 18 is a perspective view of a lens driving device 100-2 according to another embodiment, FIG. 19 is a cross-sectional view of the lens driving device 100-2 of FIG. 18 in the EF direction, and FIG. 20A is a cross-sectional view of the lens driving device 100-2 of FIG. 18. The upper elastic member 150A is shown, FIG. 20B is a partially enlarged view of FIG. 20A, and FIG. 21 shows the connection relationship between the upper elastic member, the board 190a, and the support members shown in FIG. 18.

The lens driving device 100-2 includes a bobbin 110, a first coil 120, a first magnet 130, a housing 140a, an upper elastic member 150B, a lower elastic member 160A, and a first position. It includes a sensor 170, a second magnet 180, a board 190a, and a support member 220A.

In addition, the lens driving device 100-2 includes a third magnet 185, a second coil 230, second position sensors 240a and 240b, a circuit board 250, a base 210, and a cover member ( 300) may further be included.

Except for the upper elastic member 150B and the support member 220A shown in FIG. 18, the description of the embodiment shown in FIG. 12 may be equally applied to the remaining components of the lens driving device 100-2. .

Referring to FIG. 20, the upper elastic member 150B may include upper springs 150B-1 to 150B-4 that are electrically separated from each other.

Each of the upper springs 150B-1 to 150B-4 is disposed in a corresponding one of the four corners of the housing 140a, and the upper spring 150B-4 is disposed in the fourth corner of the housing 140a. ), one end of which is disposed in the first corner of the housing 140 and may be coupled to the first corner.

The board 190a is disposed at a first corner of the housing 140a, and the fourth corner of the housing 140a may face the first corner diagonally.

Each of the upper springs 150B-1 to 150B-4 is directly connected to a corresponding one of the first to fourth pads 5a to 5d of the board 190a disposed in the first corner of the housing 140a. They are bonded and electrically connected.

The first upper spring 150B-1 may include a first outer frame 152-3' coupled to the first corner portion of the housing 140a.

The first outer frame 152-3' of the first upper spring 150B-1 has a first coupling portion including coupling regions S1' to S3' coupled to the first corner portion of the housing 140a. (81), a second coupling portion 82 coupled to a corresponding one of the first to fourth support members 220B-1 to 220B-4 (e.g., 220B-1), and a first coupling portion ( Combination of the first connection portion 83a and the first coupling portion 81 connecting one of the coupling regions (S1' to S3') (e.g., S1') of 81) with the second coupling portion 82. It may include a second connection portion 83a connecting the second connection portion 82 with any other one of the regions S1' to S3' (eg, S3').

For example, the coupling areas S1' to S3' of the first coupling portion 81 of the first upper spring 150B-1 may be spaced apart from each other and may be coupled to the upper support protrusion 143 of the housing 140a. It may be in the form of a through hole.

One of the first coupling regions S1' to S3' of the first coupling portion of the first upper spring 150B-1 (eg, S2') includes the first to fourth pads 5a of the board 190a. A contact portion Q3 connected or bonded to the corresponding one of through 5d) may be provided.

The contact portion Q3 may extend or protrude from one end of the first outer frame where the coupling area is provided, and may be bonded to the pad 5c of the board 190a by soldering or a conductive adhesive member.

The second to third upper springs 150B-2 to 150B-3 each correspond to the first inner frame 151' coupled to the bobbin 110 and the second and third corner portions of the housing 140a. It may include a first outer frame 152' coupled to either one, and a first frame connection portion 153' connecting the first inner frame 151' and the first outer frame 152'.

The first outer frame 152' of each of the second to third upper springs 150B-2 to 150B-3 has a coupling area coupled to a corresponding one of the second and third corner portions of the housing 140a. A first coupling portion 71 including S5' to S8', a corresponding one of the first to fourth support members 220B-1 to 220B-4 (e.g., 220B-2, 220B- 3), the second coupling portion 72 is coupled to any one of the coupling regions (S5' to S8') of the first coupling portion (71) (e.g., S5') and the second coupling portion (72). The first connection portion 83a connects the second connection portion 82 with any other one of the connection regions S5' to S8' of the first connection portion 81 (e.g., S8'). It may include 2 connection portions (83a).

For example, the coupling areas S5' to S8' of the first coupling portion 71 of each of the second to third upper springs 150B-2 to 150B-3 may be spaced apart from each other, and the housing 140a It may be in the form of a through hole combined with the upper support protrusion 143. Additionally, the second coupling portions 72 and 82 of each of the first to fourth upper springs may be in the form of a hole coupled to the support members 220B-1 to 220B-4.

Each of the second to third upper springs 150B-2 to 150B-3 is connected to a first coupling portion ( A first upper extension frame (154a', 154b') connected to any one (e.g., S5') of the coupling areas (S5' to S8') of 71) and extending toward the first corner portion of the housing (140a) It may further include.

Since the first upper extension frames 154a' and 154b' are connected to any one of the coupling regions (S5' to S8') of the first coupling portion 71 (e.g., S5'), they are connected to the housing 140a. The supporting force can be improved and the first upper extension frames 154a' and 154b' can be prevented from breaking. The through hole h3 provided in the first upper extension frames 154a' and 154b' shown in FIG. 20 is also intended to improve coupling force and support force with the housing 140a.

At one end of the first upper extension frames 154a' and 154b', contact portions Q1 and Q4 are provided to be connected or bonded to a corresponding one of the first to fourth pads 5a to 5d of the board 190a. It can be.

The contact portions Q1 and Q4 may extend or protrude from one end of the first upper extension frames 154a' and 154b' and may be bonded to the pads 5a and 5d of the board 190a by soldering or a conductive adhesive member. You can.

The fourth upper spring 150B-4 includes first inner frames 151-1' and 151-2' coupled to the bobbin 110, and first outer frames 152-1 coupled to the housing 140a. 'and 152-2'), first frame connectors connecting the first inner frames (151-1' and 151-2') and the first outer frames (152-1' and 152-2') 153-1' and 153-2'), and a connection frame 154' connecting the first inner frames 151-1' and 151-2' to each other.

In FIG. 20, the fourth upper spring 150B-4 illustrates that the number of the first inner frame and the first outer frame is two, and the number of connecting frames is one, but it is not limited thereto, and in other embodiments The number of each of the first inner frame and the first outer frame may be 3 or more, and the number of connecting frames may be 2 or more.

One of the two first outer frames of the fourth upper spring 150B-4 (152-1') is disposed at the first corner of the housing (140a), and the other one (152-3') is It may be placed in the fourth corner of the housing 140a and may be spaced apart from each other.

The two first inner frames of the fourth upper spring 150B-4 are disposed to be spaced apart from each other and may be disposed on the two first side portions 110b-1 of the bobbin 110 facing each other.

For example, the two first inner frames 151-1' and 151-2' of the fourth upper spring 150B-4 correspond to the two first sides 141 of the housing 140a facing each other. It may be disposed on the first sides 110b-1 of the bobbin 110.

For example, the first inner frame 151-1' may be disposed on the bobbin 110 adjacent to the second corner of the housing 140a, and the first inner frame 151-1' may be positioned on the bobbin 110 adjacent to the second corner of the housing 140a. ) may be placed on the bobbin 110 adjacent to the third corner portion.

For example, the first frame connection portion 153-1' is connected to the first outer frame 152-1' of the fourth upper spring 150B-4 located at the fourth corner and the first inner frame adjacent to the third corner. (151-1') can be connected.

In addition, the first frame connection portion 153-2' includes the first outer frame 152-1' of the fourth upper spring 150B-4 located at the first corner portion and the first inner frame adjacent to the second corner portion ( 151-2') can be connected.

One end of the connection frame 154' of the fourth upper spring 150B-4 may be connected to the first inner frame 151-1', and the other end of the connection frame 154' may be connected to the first inner frame 151-1'. 2').

The connection frame 154' of the fourth upper spring 150B-4 may have a curved shape surrounding at least a portion of the outer peripheral surface 110b of the bobbin 110 to avoid spatial interference with the bobbin 110.

For example, the connection frame 154' of the fourth upper spring 150B-4 may have a curved shape surrounding at least a portion of the upper outer peripheral surface 110b of the bobbin 110.

For example, the connection frame 154' of the fourth upper spring 150B-4 may have a curved shape that is convex toward the fourth corner with respect to the reference line 502', but is not limited thereto.

Also, for example, the connection frame 154' of the fourth upper spring 150B-4 may be curved extending to the right of the reference line 501'.

For example, the reference line 501' may be a straight line passing through the center point 101 and the second coupling portions 72 of the second and third upper frames 150B-2 and 150B-3, and the reference line 502' may be a straight line passing through the center point 101 and the second coupling portions of the first and fourth upper frames, but is not limited thereto, and the reference lines 501' and 502' are the reference lines 501 and 502 of FIG. 9A. ) can also be defined as follows.

The first outer frame 152-1' of the fourth upper spring 150B-4 is connected to the first outer spring 152-1' of the second and third upper springs 150B-2 and 150B-3. The explanation may apply.

The first outer frame 152-2' of the fourth upper spring 150B-4 may be spaced apart from the first outer frame 152-3' of the first upper spring 150B-1, and the housing 140a ) may include a first coupling portion including a coupling region (S4') coupled to the first corner portion.

The coupling area S4' of the first outer frame 152-2' of the fourth upper spring 150B-4 is the coupling area of the first coupling portion 81 of the first upper spring 150B-1 ( It can be placed between S2' and S3').

One end of the first coupling portion of the first outer frame 152-3' of the fourth upper spring 150B-4 is attached to a corresponding one of the first to fourth pads 5a to 5d of the board 190a. A contact portion Q2 that is connected or bonded may be provided.

The contact portion Q2 may extend or protrude from one end of the first outer frame 152-3' of the fourth upper spring 150B-4, and may be connected to the pad 5b of the board 190a by soldering or a conductive adhesive member. ) can be bonded to.

The first outer frames 152' and 152-1' of the second to third upper springs 150B-2 to 150B-3 may be left and right symmetrical with respect to the reference lines 501'502'.

In addition, the first outer frame 152-3' of the first upper spring 150B-1 and the first outer frame 152 of the fourth upper spring 150B-4 are disposed at the first corner of the housing 140a. The overall shape of -2') may be left-right symmetrical with respect to the reference line 502'. As a result, the support members 220B-1 to 220B-4 can support the housing 140a in a balanced manner without being biased to one side.

The width of each of the first and second connection parts 83a and 83b and 73a and 73b may decrease in the direction from the first connection parts 81 and 71 to the second connection parts 82 and 72. Because of this, each of the first and second connecting parts (83a and 83b, 73a and 73b) can be easily moved in the optical axis direction, and the stress applied to the upper elastic member 150B and the support member 220B The effect of dispersing stress can be improved.

The support member 220B may include first to fourth support members 220B-1 to 220B-4 disposed at corner portions of the housing 140a.

As shown in FIG. 21, each of the first to fourth support members 220B-1 to 220B-4 may be disposed on a corresponding one of the first to fourth corner portions of the housing 140a, It may be bonded to a corresponding one of the first outer frames of the first to fourth upper springs 150B-1 to 150B-4.

For example, one end of each of the first to fourth support members 220B-1 to 220B-4 is connected to a first outer frame corresponding to one of the first to fourth upper springs 150B-1 to 150B-4. It can be bonded to the second coupling portions 82 and 72 of (152', 152-2', and 152-3), and the other end can be bonded to the circuit board 250, and the upper springs (150B-1 to 150B-1) 150B-4) and the support members 220B-1 to 220B-4, respectively, connect the first to fourth pads 5a to 5d of the board 190a and the corresponding four terminals of the circuit board 250. The terminals may be electrically connected.

The two pads 5e and 5f of the board 190a may be directly connected to the first and second lower springs 160-1 and 160-2, as described in FIG. 17, and the first coil 120 ) can be electrically connected to.

The details described in FIGS. 12 to 17 may be applied to data communication between the first position sensor 170 and the circuit board 250 and provision of a driving signal from the first position sensor to the first coil 120.

Compared to the embodiment 100-1 shown in FIG. 12, the embodiment 100-2 shown in FIG. 18 can reduce the number of support members, and the reduction in the number of support members makes it possible to reduce the number of support members. The size can be reduced.

Additionally, because the number of support members is reduced, the resistance of the support members can be reduced, thereby reducing current consumption and improving the sensitivity of OIS driving.

In addition, instead of reducing the number of support members, the thickness of the support members can be increased to obtain the same elastic force, and as the thickness of the support members increases, the influence of the OIS movable part due to external shock can be reduced.

Figure 22 shows an exploded perspective view of the camera module 200 according to an embodiment.

Referring to Figure 22, the camera module includes a lens barrel 400, a lens driving device 100, an adhesive member 710, a filter 610, a first holder 600, a second holder 800, and an image sensor ( 810), a motion sensor 820, a control unit 830, and a connector 840.

A lens barrel 400 may be mounted on the bobbin 110 of the lens driving device 100.

The first holder 600 may be placed below the base 210 of the lens driving device 100. The filter 610 is mounted on the first holder 600, and the first holder 600 may have a protrusion 500 on which the filter 610 is seated.

The adhesive member 710 may couple or attach the base 210 of the lens driving device 100 to the first holder 600. In addition to the above-described adhesive role, the adhesive member 710 may also serve to prevent foreign substances from entering the lens driving device 100.

For example, the adhesive member 710 may be epoxy, thermosetting adhesive, ultraviolet curing adhesive, etc.

The filter 610 may serve to block light of a specific frequency band from light passing through the lens barrel 400 from entering the image sensor 810. The filter 610 may be an infrared blocking filter, but is not limited thereto. At this time, the filter 610 may be arranged parallel to the x-y plane.

A hollow may be formed in a portion of the first holder 600 where the filter 610 is mounted so that light passing through the filter 610 can enter the image sensor 810.

The second holder 800 is disposed below the first holder 600, and the image sensor 810 may be mounted on the second holder 600. The image sensor 810 is a site where light passing through the filter 610 is incident and an image included in the light is formed.

The second holder 800 may be equipped with various circuits, elements, and control units to convert the image formed on the image sensor 810 into an electrical signal and transmit it to an external device.

The second holder 800 can be implemented as a circuit board on which an image sensor can be mounted, a circuit pattern can be formed, and various elements can be combined.

The image sensor 810 may receive an image included in light incident through the lens driving device 100 and convert the received image into an electrical signal.

The filter 610 and the image sensor 810 may be arranged to be spaced apart from each other in the first direction.

The motion sensor 820 is mounted on the second holder 800 and can be electrically connected to the control unit 830 through a circuit pattern provided on the second holder 800.

The motion sensor 820 outputs rotational angular velocity information resulting from the movement of the camera module 200. The motion sensor 820 may be implemented as a 2-axis or 3-axis gyro sensor, or an angular velocity sensor.

The control unit 820 is mounted on the second holder 800 and may be electrically connected to the second position sensor 240 and the second coil 230 of the lens driving device 100. For example, the second holder 800 may be electrically connected to the circuit board 250 of the lens driving device 100, and the control unit 820 mounted on the second holder 800 may be connected to the circuit board 250 through the circuit board 250. 2 It may be electrically connected to the position sensor 240 and the second coil 230.

Based on the output signals provided from the position sensor 240 of the lens driving device 100, the control unit 830 outputs a driving signal capable of performing image stabilization correction for the OIS movable part of the lens driving device 100. You can.

Also, for example, the control unit 830 may use drive signals IS1 to IS4 or drive signals DS and control signals C1 to C4 to drive the first coils 120-1 to 120-4. It can be provided to the substrate 250.

The connector 840 is electrically connected to the second holder 800 and may have a port for electrical connection to an external device.

In addition, the lens driving device 100 according to the embodiment forms an image of an object in space by using the characteristics of light, such as reflection, refraction, absorption, interference, and diffraction, and aims to increase the visual power of the eye or uses a lens. It may be included in an optical instrument for the purpose of recording and reproducing images, or for optical measurement, propagation or transmission of images, etc. For example, an optical device according to an embodiment may include a smartphone and a portable terminal equipped with a camera.

FIG. 23 shows a perspective view of a portable terminal 200A according to an embodiment, and FIG. 24 shows a configuration diagram of the portable terminal shown in FIG. 23.

23 and 24, the portable terminal (200A, hereinafter referred to as “terminal”) includes a body 850, a wireless communication unit 710, an A/V input unit 720, a sensing unit 740, and an input/output unit 720. It may include an output unit 750, a memory unit 760, an interface unit 770, a control unit 780, and a power supply unit 790.

The body 850 shown in FIG. 23 is in the form of a bar, but is not limited to this, and is a slide type, folder type, or swing type in which two or more sub-bodies are coupled to enable relative movement. It may have various structures such as , swirl type, etc.

The body 850 may include a case (casing, housing, cover, etc.) that forms the exterior. For example, the body 850 may be divided into a front case 851 and a rear case 852. Various electronic components of the terminal may be built into the space formed between the front case 851 and the rear case 852.

The wireless communication unit 710 may be configured to include one or more modules that enable wireless communication between the terminal 200A and a wireless communication system or between the terminal 200A and the network where the terminal 200A is located. For example, the wireless communication unit 710 may be configured to include a broadcast reception module 711, a mobile communication module 712, a wireless Internet module 713, a short-range communication module 714, and a location information module 715. there is.

The A/V (Audio/Video) input unit 720 is for inputting audio or video signals and may include a camera 721 and a microphone 722.

The camera 721 may be a camera 200 including a camera module 200 according to the embodiment shown in FIG. 22 .

The sensing unit 740 monitors the current state of the terminal 200A, such as the open/closed state of the terminal 200A, the location of the terminal 200A, presence or absence of user contact, the direction of the terminal 200A, acceleration/deceleration of the terminal 200A, etc. It is possible to detect and generate a sensing signal to control the operation of the terminal 200A. For example, if the terminal 200A is in the form of a slide phone, it can sense whether the slide phone is opened or closed. In addition, it is responsible for sensing functions related to whether the power supply unit 790 supplies power and whether the interface unit 770 is connected to an external device.

The input/output unit 750 is for generating input or output related to vision, hearing, or tactile sensation. The input/output unit 750 can generate input data for controlling the operation of the terminal 200A and can also display information processed by the terminal 200A.

The input/output unit 750 may include a key pad unit 730, a display module 751, a sound output module 752, and a touch screen panel 753. The key pad unit 730 can generate input data through key pad input.

The display module 751 may include a plurality of pixels whose colors change according to electrical signals. For example, the display module 751 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, or a three-dimensional display. It may include at least one display (3D display).

The audio output module 752 outputs audio data received from the wireless communication unit 710 in call signal reception, call mode, recording mode, voice recognition mode, or broadcast reception mode, or stored in the memory unit 760. Audio data can be output.

The touch screen panel 753 can convert the change in capacitance that occurs due to the user's touch to a specific area of the touch screen into an electrical input signal.

The memory unit 760 may store programs for processing and controlling the control unit 780 and stores input/output data (e.g., phone book, messages, audio, still images, photos, videos, etc.). It can be stored temporarily. For example, the memory unit 760 may store images captured by the camera 721, such as photos or videos.

The interface unit 770 serves as a passage connecting external devices connected to the terminal 200A. The interface unit 770 receives data from an external device, receives power and transmits it to each component inside the terminal 200A, or transmits data inside the terminal 200A to an external device. For example, the interface unit 770 includes a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port for connecting a device equipped with an identification module, and audio I/O (Input/ Output) port, video I/O (Input/Output) port, and earphone port.

The controller 780 can control the overall operation of the terminal 200A. For example, the control unit 780 may perform related control and processing for voice calls, data communications, video calls, etc. The control unit 780 may include the panel control unit 144 of the touch screen panel driver shown in FIG. 1 or may perform the function of the panel control unit 144.

The control unit 780 may be equipped with a multimedia module 781 for multimedia playback. The multimedia module 781 may be implemented within the control unit 180 or may be implemented separately from the control unit 780.

The control unit 780 can perform pattern recognition processing to recognize handwriting or drawing input on the touch screen as text and images, respectively.

For example, the control unit 780 may use driving signals IS1 to IS4 or drive signals (IS1 to IS4) to drive the first to fourth coils 120-1 to 120-4 of the lens driving device 100 according to the embodiment. DS) and control signals C1 to C4 may be provided to the camera module 200 included in the camera 721.

The power supply unit 790 can receive external power or internal power under the control of the control unit 780 and supply power necessary for the operation of each component.

The features, structures, effects, etc. described in the embodiments above are included in at least one embodiment of the present invention and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified and implemented in other embodiments by a person with ordinary knowledge in the field to which the embodiments belong. Therefore, contents related to such combinations and modifications should be construed as being included in the scope of the present invention.

110: bobbin 120: first coil
130: first magnet 140: housing
150: upper elastic member 160: lower elastic member
170: first position sensor 180, 185: second and third magnets
190: board 210: base
220: support member 230: second coil
240: second position sensors 250: circuit board
300: Absence of cover.

Claims (24)

housing;
a bobbin disposed inside the housing;
a first coil disposed on the outer peripheral surface of the bobbin;
a first magnet disposed in the housing;
a first circuit board disposed in the housing and including first to sixth pads;
a first position sensor disposed on the first circuit board and electrically connected to the first to sixth pads;
an upper elastic member coupled to the upper part of the housing; and
a lower elastic member coupled to the lower portion of the housing;
The upper elastic member includes first to fourth upper springs,
The lower elastic member includes first and second lower springs electrically connected to the first coil,
Each of the first to fourth upper springs includes a first outer frame coupled to the upper part of the housing,
The first outer frame of each of the first to fourth upper springs is coupled to a corresponding one of the first to fourth pads,
A lens driving device wherein the first lower spring is electrically connected to the fifth pad and the second lower spring is electrically connected to the sixth pad. According to paragraph 1,
a second circuit board disposed below the first and second lower springs; and
A lens driving device comprising a support member coupled to the upper elastic member and electrically connected to the second circuit board. According to paragraph 2,
A lens driving device wherein the support member is a suspension wire. According to paragraph 2,
A lens driving device wherein the support member is disposed at a corner of the housing. According to paragraph 1,
The first magnet is a lens driving device disposed at a corner of the housing. According to paragraph 1,
A lens driving device comprising a second magnet facing the first position sensor and disposed on the bobbin. According to paragraph 1,
Each of the first and second lower springs,
It includes a second inner frame coupled to the bobbin, a second outer frame coupled to the housing, and a second frame connection portion connecting the second inner frame and the second outer frame,
The fifth pad is coupled to the second outer frame of the first lower spring,
The sixth pad is coupled to the second outer frame of the second lower spring. According to paragraph 1,
The first lower spring is coupled to the fifth pad by soldering or a conductive adhesive member, and the second lower spring is coupled to the sixth pad by soldering or a conductive adhesive member. According to paragraph 1,
The first position sensor is disposed on the front side of the first circuit board facing the outer peripheral surface of the bobbin,
The first to fourth pads are located above the first position sensor,
The fifth and sixth pads are located below the first position sensor. According to paragraph 2,
The second circuit board faces the first magnet and includes a second coil that moves the housing by interacting with the first magnet. According to clause 10,
a base disposed below the second circuit board; and
A lens driving device disposed on the base, electrically connected to the second circuit board, and including a second position sensor for detecting displacement of the housing. According to clause 11,
The second position sensor includes a first sensor and a second sensor,
The base is a lens driving device including a first seating groove for placing the first sensor and a second seating groove for placing the second sensor. The method of claim 2, wherein the first position sensor is:
Transmitting signals for data communication to or receiving signals for data communication from the second circuit board through the first to fourth upper springs and the support member,
A lens driving device that supplies a driving signal to the first coil through the first and second lower springs. housing;
a bobbin disposed inside the housing;
a first coil disposed on the outer peripheral surface of the bobbin;
a first magnet disposed in the housing;
a first circuit board disposed in the housing and including first to sixth pads;
a first position sensor disposed on the first circuit board and electrically connected to the first to sixth pads;
an upper elastic member coupled to the upper part of the housing; and
It includes a lower elastic member coupled to the upper part of the housing,
The upper elastic member includes a first upper spring coupled to the first pad, a second upper spring coupled to the second pad, a third upper spring coupled to the third pad, and a third upper spring coupled to the fourth pad. Includes 4 upper springs,
The lower elastic member includes a first lower spring coupled to the fifth pad and a second lower spring coupled to the sixth pad,
The first to fourth pads are disposed higher than the first position sensor
The fifth and sixth pads are disposed lower than the first position sensor. According to clause 14,
A second circuit board disposed below the first and second lower springs and including a second coil facing the first magnet in an optical axis direction,
A lens driving device in which the housing moves in a direction perpendicular to the optical axis direction by interaction between the first magnet and the second coil. According to clause 15,
A lens driving device comprising a support member coupled to the upper elastic member and electrically connected to the second circuit board. According to clause 14,
The first position sensor includes first to sixth terminals electrically connected to the first to sixth pads of the first circuit board,
The first to fourth terminals are for a clock signal, power signal, and data, and the fifth and sixth terminals are for supplying a drive signal to the first coil. According to clause 14,
The first circuit board includes an upper part and a lower part disposed below the upper part,
The first to fourth pads are disposed at the upper portion, and the fifth and sixth pads are disposed at the lower portion. According to clause 18,
A lens driving device wherein the width of the lower part is smaller than the width of the upper part. According to clause 14,
A lens driving device comprising a second magnet facing the first position sensor and disposed on the bobbin. According to clause 20,
A lens driving device wherein the second magnet overlaps the first coil in a direction perpendicular to the optical axis. According to clause 14,
The first position sensor is a lens driving device including a Hall sensor and a driver. lens;
The lens driving device according to any one of claims 1 to 22; and
A camera module containing an image sensor. An optical device comprising the camera module according to claim 23.

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