KR20160080627A - Lens driving unit and camera module including the same - Google Patents

Abstract

According to an embodiment of the present invention, a lens operating unit comprises: a first holder on which a filter is mounted; a lens barrel vertically movable in the first direction with respect to the first holder; and a second holder placed on a lower portion of the first holder and having an image sensor mounted thereon, wherein the filter may comprise a masking unit on an edge. The purpose of the present invention is to provide a lens operating unit capable of preventing image quality degradation or image distortion.

Description

[0001] The present invention relates to a lens driving apparatus and a camera module including the lens driving unit,

An embodiment relates to a lens driving apparatus and a camera module including the lens driving apparatus.

The contents described in this section merely provide background information on the embodiment and do not constitute the prior art.

In recent years, IT products such as mobile phones, smart phones, tablet PCs, and notebooks, which incorporate ultra-compact digital cameras, are actively under development.

The camera module may be provided with an image sensor in which incident light including an image of a subject is incident to image the image.

And parts that can reflect incident light may be disposed at a portion adjacent to the image sensor. Therefore, when the incident light is incident on and reflected by such a component, the image formed on the image sensor may be distorted or the image quality of the image may be deteriorated.

Therefore, it is an object of the present invention to provide a lens driving apparatus and a camera module including the lens driving apparatus, which are capable of preventing distortion of an image formed on an image sensor or deterioration of image quality of an image.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

One embodiment of the lens driving device includes: a first holder in which a filter is mounted; A lens barrel which is vertically movable in a first direction with respect to the first holder; And a second holder disposed under the first holder and on which an image sensor is mounted. The filter may be provided with a masking portion at an edge portion thereof.

The filter may be formed in a rectangular shape in a first direction, and the masking portion may be disposed around the filter.

The masking portion may have a constant width at each side of the filter.

The masking portion may have depressions formed in the edges of the filter from the inner side to the outer side, and the depressions may be disposed at at least two corner portions of the four corners of the filter.

The masking portion may have an inner end formed in a quadrangular shape, and the depression may be formed in an outer direction at an edge portion of the inner end.

The filter and the image sensor may be disposed to face each other in the first direction.

The second holder includes: a first terminal formed at an edge portion; And a second terminal formed adjacent to a portion where the image sensor is mounted, and the image sensor and the second terminal may be connected to each other by a wire.

The masking portion may be provided to overlap at least part of the second terminal and the wire in a first direction.

The image sensor may be formed in a rectangular shape in a first direction, and the depressed portion may be formed to avoid a corner of the image sensor in a first direction.

The filter and the image sensor may be spaced apart from each other by a predetermined distance in the first direction.

The depressed portion may be formed in at least one of an arcuate shape, a curved shape, and a polygonal shape as viewed in the first direction.

The masking portion may be coupled to the upper surface of the filter.

The masking portion may be formed of an opaque material and may be provided in the form of a film applied to the filter.

Another embodiment of the lens driving device includes: a first holder; A lens barrel which is vertically movable in a first direction with respect to the first holder; A second holder disposed under the first holder and having an image sensor mounted thereon; A filter mounted on the first holder; And a masking portion provided on the upper edge of the filter.

The filter may be an infrared cut filter.

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

Wherein the second holder includes a first terminal formed at an edge portion and a second terminal formed adjacent to a portion where the image sensor is mounted, the image sensor and the second terminal being connected to each other by a wire, The masking portion may be provided to overlap at least part of the second terminal and the wire in a first direction.

Wherein the masking portion is formed with a rectangular inner side end portion and a depression portion is formed outward at an edge portion of the inner end portion, the image sensor is formed in a quadrangular shape in a first direction, May be formed to avoid the edges of the sensor.

The masking portion may block at least part of the light passing through the lens barrel and incident on the edge portion from passing through the filter.

The second holder may be formed of a circuit board.

One embodiment of the camera module may include the lens driving apparatus described above.

In an embodiment, the masking portion may block incident light from entering the second terminal or wire to prevent flare, thereby preventing distortion of the image formed on the image sensor or deterioration of image quality.

The depressed portion formed in the masking portion may allow the active aligning device to recognize the edge of the image sensor and recognize the accurate position on the xy plane of the image sensor so that the active aligning process of the lens driving device can smoothly proceed There is an effect.

1 is a perspective view showing a part of a lens driving apparatus according to an embodiment.
2 and 3 are exploded perspective views showing a part of a lens driving apparatus according to an embodiment.
4 is a diagram showing a part of a lens driving apparatus according to an embodiment.
5 is a perspective view illustrating a first holder according to an embodiment.
6 is a plan view of a second holder according to one embodiment.
FIG. 7 is a view showing a masking portion overlapped in FIG.
8 is a view showing a portion B in Fig.
9 is a cross-sectional view showing a part of a lens driving apparatus according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments are to be considered in all aspects as illustrative and not restrictive, and the invention is not limited thereto. It is to be understood, however, that the embodiments are not intended to be limited to the particular forms disclosed, but are to include all modifications, equivalents, and alternatives falling within the spirit and scope of the embodiments. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience.

The terms "first "," second ", and the like can be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. In addition, terms specifically defined in consideration of the constitution and operation of the embodiment are only intended to illustrate the embodiments and do not limit the scope of the embodiments.

In the description of the embodiments, when it is described as being formed on the "upper" or "on or under" of each element, the upper or lower (on or under Quot; includes both that the two elements are in direct contact with each other or that one or more other elements are indirectly formed between the two elements. Also, when expressed as "on" or "on or under", it may include not only an upward direction but also a downward direction with respect to one element.

It is also to be understood that the terms "top / top / top" and "bottom / bottom / bottom", as used below, do not necessarily imply nor imply any physical or logical relationship or order between such entities or elements, But may be used only to distinguish one entity or element from another entity or element.

Further, in the drawings, an orthogonal coordinate system (x, y, z) can be used. In the drawing, the x axis and the y axis mean an axis perpendicular to the optical axis. For convenience, the optical axis direction (z axis direction) can be referred to as a first direction, the x axis direction as a second direction, and the y axis direction as a third direction.

1 is a perspective view showing a part of a lens driving apparatus according to an embodiment. 2 is an exploded perspective view showing a part of a lens driving apparatus according to an embodiment.

An image stabilizer applied to a small-sized camera module of a mobile device such as a smart phone or a tablet PC is a device for preventing the outline of the photographed image from being formed due to the vibration caused by the shaking of the user at the time of shooting the still image Means a configured device.

The autofocusing apparatus is a device that automatically focuses an image of an object on an image sensor surface. In this embodiment, the optical module including a plurality of lenses may be moved in a first direction or may be moved with respect to a plane perpendicular to the first direction. In this case, Correction operation and / or auto focusing operation.

As shown in FIGS. 1 and 2, the lens driving apparatus according to the embodiment may include a movable portion. At this time, the movable portion can perform functions of auto focusing of the lens and correction of camera shake. The movable part may include a bobbin 110, a first coil 120, a first magnet 130, a housing 140, an upper elastic member 150, and a lower elastic member 160.

The bobbin 110 is disposed inside the housing 300 and has a first coil 120 disposed on the outer circumferential surface of the bobbin 110 and disposed inside the first magnet 130. The first magnet 130 and the first coil 130, (120) so as to reciprocate in a first direction in an inner space of the housing (140). The first coil 120 may be installed on the outer circumferential surface of the bobbin 110 to enable electromagnetic interaction with the first magnet 130.

Further, the bobbin 110 is elastically supported by the upper and lower elastic members 150 and 160, and can perform the auto focusing function by moving in the first direction.

The bobbin 110 may include a lens barrel 400 in which at least one lens is installed. The lens barrel 400 can be coupled to the inside of the bobbin 110 in various ways.

For example, female threads are formed on the inner circumferential surface of the bobbin 110, male thread corresponding to the threads is formed on the outer circumferential surface of the lens barrel 400, and the lens barrel 400 is screw- Lt; / RTI > However, the present invention is not limited thereto, and the lens barrel 400 may be directly fixed to the inside of the bobbin 110 by a method other than screwing, without forming a thread on the inner circumferential surface of the bobbin 110.

Alternatively, it is also possible that the above-mentioned one or more lenses without the lens barrel 400 are integrally formed with the bobbin 110. However, in the embodiment, a lens driving apparatus in which a lens barrel 400 is separately provided will be described.

The lens coupled to the lens barrel 400 may be a single lens, or two or more lenses may be configured to form an optical system.

The auto focusing function is controlled according to the direction of the current, and the auto focusing function may be realized by moving the bobbin 110 in the first direction. For example, when the forward current is applied, the bobbin 110 can move upward from the initial position, and when the reverse current is applied, the bobbin 110 can move downward from the initial position. Alternatively, the amount of unidirectional current may be adjusted to increase or decrease the movement distance from the initial position in one direction.

The upper and lower surfaces of the bobbin 110 may have a plurality of upper support protrusions and lower support protrusions. The upper support protrusion may be provided in a cylindrical shape or a prismatic shape, and the upper elastic member 150 may be engaged and fixed. The lower support protrusions may be cylindrical or prismatic like the upper support protrusions, and the lower elastic members 160 may be engaged and fixed.

At this time, the upper elastic member 150 may have a through hole corresponding to the upper supporting protrusion, and the lower elastic member 160 may have a through hole corresponding to the lower supporting protrusion. The support protrusions and the through holes may be fixedly joined by an adhesive member such as a thermal fusion adhesive or an epoxy.

The housing 140 has a hollow column shape for supporting the first magnet 130, and may be formed in a substantially rectangular shape. The first magnet 130 and the support member 220 may be coupled to the side surface of the housing 140. As described above, the bobbin 110 guided by the housing 140 and moving in the first direction may be disposed on the inner circumferential surface of the housing 140.

The upper elastic member 150 and the lower elastic member 160 are coupled to the housing 140 and the bobbin 110 and the upper elastic member 150 and the lower elastic member 160 are coupled to the first And / or downward motion in the direction of the arrow. The upper elastic member 150 and the lower elastic member 160 may be formed of leaf springs.

As shown in FIG. 2, the upper elastic members 150 may be provided separately from each other. Each of the divided portions of the upper elastic member 150 can be supplied with different polarity currents or different powers through the multi-split structure. Also, the lower elastic member 160 may have a multi-split structure and may be electrically connected to the upper elastic member 150.

Meanwhile, the upper elastic member 150, the lower elastic member 160, the bobbin 110, and the housing 140 may be assembled through heat bonding and / or bonding using an adhesive or the like.

The base 210 may be disposed at a lower portion of the bobbin 110, may have a substantially rectangular shape, and may have a printed circuit board 250 thereon.

A supporting groove having a corresponding size may be formed on the surface of the base 210 opposite to the portion on which the terminal surface 253 of the printed circuit board 250 is formed. The support groove is recessed to a certain depth from the outer circumferential surface of the base 210 so that the portion where the terminal surface 253 is formed is prevented from protruding outward or can be adjusted.

The support member 220 is disposed on the side surface of the housing 140 and has an upper side coupled to the housing 140 and a lower side coupled to the base 210. The bobbin 110 and the housing 140 Can be movably supported in a second direction and a third direction perpendicular to the first direction, and can be electrically connected to the first coil (120).

Since the support members 220 according to the embodiment are respectively disposed on the outer surfaces of the corners of the housing 140, a total of four support members 220 may be installed symmetrically. Further, the support member 220 may be electrically connected to the upper elastic member 150. That is, for example, the support member 220 may be electrically connected to a portion where the through hole of the upper elastic member 150 is formed.

Since the support member 220 is formed separately from the upper elastic member 150, the support member 220 and the upper elastic member 150 can be electrically connected through a conductive adhesive agent, solder, or the like. Accordingly, the upper elastic member 150 can apply an electric current to the first coil 120 through the electrically connected support member 220.

In FIG. 2, the linear supporting member 220 is shown as an embodiment, but the present invention is not limited thereto. That is, the support member 220 may be provided in the form of a plate-like member or the like.

The second coil 230 can perform the camera shake correction by moving the housing 140 in the second and / or third directions through the electromagnetic interaction with the first magnet 130.

Here, the second and third directions may include directions substantially in the x- and y-axis directions as well as the x- and y-axis directions. In other words, as seen from the driving aspect of the embodiment, the housing 140 may move parallel to the x- and y-axes, but may also be slightly inclined to the x- and y-axes when it is supported by the support member 220 have.

Therefore, the first magnet 130 needs to be installed at a position corresponding to the second coil 230.

The second coil 230 may be disposed to face the first magnet 130 fixed to the housing 140. In an embodiment, the second coil 230 may be disposed outside the first magnet 130. Alternatively, the second coil 230 may be installed at a predetermined distance below the first magnet 130.

According to the embodiment, a total of four second coils 230 may be provided on four side portions of the circuit member 231, but the present invention is not limited thereto. For example, one second coil 230, Only two can be installed, and four or more can be installed.

A circuit pattern may be formed on the circuit member 231 in the form of a second coil 230 and a separate second coil may be disposed on the circuit member 231. However, Only a separate second coil 230 may be disposed on the circuit member 231 without forming a circuit pattern on the member 231 in the form of the second coil 230. [

Alternatively, the second coil 230 may be formed by winding the wire in a donut shape, or may be electrically connected to the printed circuit board 250 by forming the second coil 230 in the form of an FP coil.

The circuit member 231 including the second coil 230 may be installed on the upper surface of the printed circuit board 250 disposed on the upper side of the base 210. However, the present invention is not limited thereto. The second coil 230 may be disposed closely to the base 210, may be spaced apart from the base 210, may be separately formed on the substrate, It may also be laminated.

The printed circuit board 250 is electrically connected to at least one of the upper elastic member 150 and the lower elastic member 160 and is coupled to the upper surface of the base 210. As shown in FIG 2, A through hole into which the support member 220 is inserted may be formed at a position corresponding to an end of the support member 220.

The printed circuit board 250 may have a bent terminal surface 253 on which the terminal 251 is mounted. A plurality of terminals 251 are disposed on the terminal surface 253 so that current can be supplied to the first coil 120 and the second coil 230 by receiving external power. The number of terminals formed on the terminal surface 253 may be increased or decreased depending on the type of components that need to be controlled. In addition, the printed circuit board 250 may have one or more terminal surfaces 253.

The cover member 300 may be provided in a substantially box shape and may receive the moving part, the second coil 230, a part of the printed circuit board 250, and the like, and may be coupled with the base 210. The cover member 300 protects the movable portion, the second coil 230 and the printed circuit board 250 received in the first and second magnets 130 and 130 from being damaged. In particular, It is possible to limit the electromagnetic field generated by the first coil 120, the second coil 230, and the like from leaking to the outside, thereby focusing the electromagnetic field.

Meanwhile, although the second coil 230 and the support member 220 for performing the shaking motion correction function are illustrated in the embodiment, the lens driving apparatus which performs only the auto focusing operation in which the shaking motion correction function is omitted in another embodiment, Can be applied.

3 is an exploded perspective view showing a part of a lens driving apparatus according to an embodiment. 4 is a diagram showing a part of a lens driving apparatus according to an embodiment.

As shown in FIG. 3, the lens driving apparatus of the embodiment may further include a first holder 600 and a second holder 800. The first holder 600 is disposed under the base 210, and the filter 610 can be mounted.

The filter 610 may block the light of a specific frequency band in the light passing through the lens barrel 400 from entering the image sensor 810, which will be described later. At this time, it is preferable that the filter 610 is provided to be placed on the x-y plane.

In addition, the filter 610 may be coupled to the upper surface of the first holder 600, and the filter 610 may be an infrared cut filter. A hollow may be formed in the first holder 600 where the filter 610 is mounted so that light passing through the filter 610 can be incident on the image sensor 810.

The base 210 and the first holder 600 may be bonded to each other by an adhesive. At this time, the adhesive used is, for example, an epoxy, a thermosetting adhesive, or an ultraviolet ray-curable adhesive.

At this time, the adhesive may seal the foreign substances in the lens driving device to prevent foreign substances from entering the lens driving device. Therefore, when bonding the base 210 and the first holder 600 using an adhesive, it is necessary to apply the adhesive so that the adhesive portion is sufficiently sealed.

The second holder 800 is disposed under the first holder 600, and the image sensor 810 can be mounted. The image sensor 810 is a portion where the light passing through the filter 610 is incident and the image included in the light is imaged.

At this time, it is preferable that the image sensor 810 is provided to be placed on the x-y plane. In an embodiment, the image sensor 810 may be mounted on the upper surface of the first holder 600.

The second holder 800 may include various circuits, elements, and a controller for converting an image formed on the image sensor 810 into an electrical signal and transmitting the electrical signal to an external device.

The second holder 800 can be coupled to the first holder 600. As in the case of the base 210 and the first holder 600, have. Meanwhile, the second holder 800 may be formed as a circuit board on which the image sensor 810 is mounted, a circuit pattern is formed, and various devices are coupled to the second holder 800.

Meanwhile, as shown in FIG. 9, the filter 610 and the image sensor 810 may be disposed to face each other in the first direction. At this time, the filter 610 and the image sensor 810 may be spaced apart from each other by a predetermined distance in the first direction.

5 is a perspective view illustrating a first holder 600 according to an embodiment. As described above, the filter 610 may be mounted on the first holder 600, and the masking unit 500 may be provided.

The masking portion 500 may be provided at an edge portion of the filter 610 and at least a portion of the light incident on the edge portion through the lens barrel 400 may be passed through the filter 610 It can play a role of blocking passage.

The reason why the edge portion of the filter 610 is provided with the masking portion 500 will be described in detail with reference to FIG.

5, for example, the filter 610 may be formed in a rectangular shape in a first direction, and the masking part 500 may be formed along each side of the filter 610 And may be formed symmetrically with respect to the filter 610.

At this time, the masking part 500 may have a constant width at each side of the filter 610. In addition, the masking part 500 may have a depression 510 formed at an edge portion of the filter 610 in a direction from the inside to the outside.

Specifically, for example, the masking part 500 may have a rectangular inner side end, and the recessed part 510 may be formed at a corner part of the inner end in an outward direction. At this time, the depressed portion 510 may be disposed at at least two corners of four corners of the filter 610.

The masking portion 500 may be coupled to the upper surface 611 of the filter 610 (see FIG. 9), for example. At this time, the masking part 500 may be formed of an opaque material and may be provided in the form of a film applied to the filter 610.

At this time, the masking part 500 may be adhered to the upper surface 611 of the filter 610 using an adhesive or the like, for example, a separate film of opaque material. In another embodiment, an opaque liquid adhesive material may be applied to the top surface 611 of the filter 610 to cure the adhesive material to form the masking portion 500, The masking part 500 may be formed.

6 is a plan view of a second holder 800 according to an embodiment. The image sensor 810 may be mounted on the second holder 800 as described above and the first terminal 820, the second terminal 830 and the wire 840 may be provided.

The first terminal 820 may be formed at an edge portion of the second holder 800 and the second holder 800 may be electrically connected to an external device through the first terminal 820. 6, the first terminal 820 may be provided on both sides of the second holder 800, or may be provided on one side of the second holder 800 have. The plurality of first terminals 820 may be provided.

The second terminal 830 may be formed adjacent to a portion where the image sensor 810 is mounted and may be electrically connected to the image sensor 810 through a wire 840 described later. In addition, the second terminals 830 may be provided in plural around the image sensor 810 as shown in FIG.

The wire 840 may serve to electrically connect the image sensor 810 and the second terminal 830. The wire 840 may be made of a conductive material such as gold, silver, copper, copper alloy, or the like.

On the other hand, a bonding portion 700 may be formed on the second holder 800. The adhesive portion 700 may serve to couple the first holder 600 and the second holder 800 together. The adhesive 700 may be formed by applying an adhesive and the adhesive may be applied on the lower surface of the first holder 600 or on the upper surface of the second holder 800. However, An adhesive may be applied to form the adhesive portion 700. [

At this time, for example, an epoxy, a thermosetting adhesive, an ultraviolet ray-curable adhesive, or the like may be used as the adhesive for forming the adhesive portion 700.

FIG. 7 is a view showing a state where the masking unit 500 is overlapped in FIG. 8 is a view showing a portion B in Fig. The masking portion 500 may be coupled to the upper surface 611 of the filter 610 as described above. However, in order to explain the structure in which the masking portion 500 overlaps the second holder 800 Figures 7 and 8 are shown for convenience.

Since the filter 610 and the image sensor 810 are opposed to each other in the first direction, the masking part 500, which is coupled to the edge of the filter 610, The second terminal 830 and the wire 840 overlap with the second holder 800 and overlap with at least a part of the wire 840 as shown in FIG.

The image sensor 810 may be formed in a rectangular shape in a first direction and the recessed portion 510 may be formed to avoid the edge 811 of the image sensor 810 in a first direction. have.

The structure of the depression 510 is such that when the lens driving device is assembled, the movable part including the lens barrel 400 is moved so that light passing through the lens barrel 400 enters the image sensor 810 at a predetermined position it is possible to smoothly carry out the active align process to align the xy plane.

Specifically, the automated active alignment equipment used in the active alignment process recognizes the four corners 811 of the image sensor 810 and locates the image sensor 810 on the xy plane, The active alignment process can be performed by moving the portion on the xy plane.

That is, the active aligning apparatus recognizes the position on the xy plane of the four corners 811 of the image sensor 810 from above the filter 610 and the masking unit 500 using the sensing means provided therein And the active alignment process can be performed accordingly.

The concave portion 510 is formed to avoid the edge 811 of the image sensor 810 in the first direction so that the active aligning device can prevent the image sensor 810, It is possible to recognize the four corners 811 of the image sensor 810 and to grasp the accurate position on the xy plane of the image sensor 810. [

The depression 510 may have any shape as long as it can avoid the edge 811 of the image sensor 810. For example, the depression 510 may be formed in an arc shape, a curved shape, a polygonal shape, or the like as viewed in the first direction.

9 is a cross-sectional view showing a part of a lens driving apparatus according to an embodiment. 9, the masking part 500 coupled to the edge of the upper surface 611 of the filter 610 passes through the lens barrel 400 and is incident on the image sensor 810, It is possible to prevent the unnecessary portion from being incident on the image sensor 810.

Particularly, the incident light L incident on the second terminal 830 and the wire 840 is reflected by the second terminal 830 of the conductive material and the wire 840 to generate an instant flash, that is, a flare phenomenon And this flare phenomenon may distort the image formed on the image sensor 810 or lower the image quality.

Therefore, in the embodiment, the masking part 500 can block the incident light L from entering the second terminal 830 and the wire 840, thereby preventing the flare phenomenon, and accordingly, the image sensor 810 Can be prevented from being distorted or deteriorated in image quality.

The depressed portion 510 formed in the masking portion 500 recognizes the edge 811 of the image sensor 810 and recognizes the exact position on the xy plane of the image sensor 810 The active alignment process of the lens driving device can be smoothly performed.

Meanwhile, the lens driving apparatus according to the above-described embodiments can be used in various fields, for example, a camera module. For example, the camera module can be applied to a mobile device such as a mobile phone.

The camera module according to the embodiment may include a lens barrel 400, an image sensor 810, a printed circuit board 250, and an optical system coupled to the bobbin 110. The lens barrel 400, the image sensor 810, and the printed circuit board 250 are as described above.

In addition, the optical system may include at least one lens that transmits an image to the image sensor 810. [ At this time, the optical system may be provided with an actuator module capable of performing autofocusing function and camera-shake correction function.

Actuator modules that perform autofocusing can be configured in various ways, and a voice coil unit motor is generally used. The lens driving apparatus according to the above-described embodiment may serve as an actuator module that performs an auto focusing function or a camera shake correction function.

While only a few have been described above with respect to the embodiments, various other forms of implementation are possible. The technical contents of the embodiments described above may be combined in various forms other than mutually incompatible technologies, and may be implemented in a new embodiment through the same.

400: lens barrel
500: masking portion
510: depression
600: first holder
610: Filter
611: filter upper surface
700:
800: Second holder
810: Image sensor
811: Image sensor edge
820: first terminal
830: Second terminal
840: Wire
L: incident light

Claims (21)

A first holder on which a filter is mounted;
A lens barrel which is vertically movable in a first direction with respect to the first holder; And
And a second holder disposed below the first holder and on which the image sensor is mounted,
The filter includes:
Wherein a masking portion is provided at an edge portion. The method according to claim 1,
Wherein the filter is formed into a quadrangular shape in a first direction,
Wherein the masking portion is disposed around the filter. 3. The method of claim 2,
Wherein the masking portion comprises:
Wherein the filter has a constant width at each side of the filter. The method of claim 3,
Wherein the masking portion comprises:
Wherein a depression is formed at an edge portion of the filter from an inner side to an outer side and the depression is disposed at at least two corner portions of four corners of the filter. 5. The method of claim 4,
Wherein the masking portion comprises:
Wherein the inner end portion is formed in a quadrangular shape and the depressed portion is formed in an outer direction at a corner portion of the inner end portion. 6. The method of claim 5,
Wherein the filter and the image sensor are opposed to each other in a first direction. The method according to claim 6,
Wherein the second holder comprises:
A first terminal formed on an edge portion; And
And a second terminal formed adjacent to a portion where the image sensor is mounted,
Wherein the image sensor and the second terminal are connected to each other by a wire. 8. The method of claim 7,
Wherein the masking portion is provided so as to overlap at least part of the second terminal and the wire in a first direction. 8. The method of claim 7,
Wherein the image sensor is formed in a rectangular shape in a first direction,
Wherein the depressed portion is formed to avoid a corner of the image sensor in a first direction. The method according to claim 6,
Wherein the filter and the image sensor are spaced apart from each other by a predetermined distance in a first direction. 6. The method of claim 5,
Wherein the depression comprises:
Wherein at least one of an arc shape, a curved shape, and a polygonal shape is formed in the first direction. The method according to claim 1,
And the masking portion is coupled to an upper surface of the filter. The method according to claim 1,
Wherein the masking portion is formed of an opaque material and is provided in the form of a film applied to the filter. A first holder;
A lens barrel which is vertically movable in a first direction with respect to the first holder;
A second holder disposed under the first holder and having an image sensor mounted thereon;
A filter mounted on the first holder; And
And a masking portion
And the lens driving device. 15. The method of claim 14,
Wherein the filter is an infrared cut filter. 15. The method of claim 14,
Wherein the filter and the image sensor are spaced apart from each other in a first direction. 17. The method of claim 16,
Wherein the second holder includes a first terminal formed at an edge portion and a second terminal formed adjacent to a portion where the image sensor is mounted,
Wherein the image sensor and the second terminal are connected to each other by a wire,
Wherein the masking portion is provided so as to overlap at least part of the second terminal and the wire in a first direction. 18. The method of claim 17,
Wherein the masking portion has an inner end formed in a quadrangular shape, a depression is formed in a corner portion of the inner end in an outward direction,
Wherein the image sensor is formed in a rectangular shape in a first direction,
Wherein the depressed portion is formed to avoid a corner of the image sensor in a first direction. 18. The method of claim 17,
Wherein the masking portion comprises:
And blocks at least part of the light passing through the lens barrel and incident on the edge portion from passing through the filter. 15. The method of claim 14,
And the second holder is formed of a circuit board. A camera module comprising the lens driving device according to any one of claims 1 to 20.

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