KR20180111004A - Lens driving device and dual camera module - Google Patents

Abstract

The present invention relates to a dual camera module. According to an embodiment of the present invention, the dual camera module comprises: a first lens driving device and a second lens driving device including a second surface facing a first surface of the first lens driving device. The first lens driving device includes: a housing; a bobbin disposed in the housing; a first coil disposed in the bobbin; a magnet disposed in the housing and facing the first coil; a base disposed under the housing; a substrate disposed on the base and including a second coil facing the magnet; an upper elastic member disposed on the upper side of the bobbin and coupled to the bobbin and the housing; and a support member coupled to the upper elastic member and the substrate. The magnet is disposed at a side portion of the housing. The upper surface of the magnet includes a first part overlapping the upper elastic member in the optical axis direction and not overlapping the housing in the optical axis direction.

Description

[0001] LENS DRIVING DEVICE AND CAMERA MODULE [0002]

The present embodiment relates to a lens driving device and a camera module.

The following description provides background information for the present embodiment and does not describe the prior art.

Background of the Invention [0002] With the widespread use of various portable terminals and the commercialization of wireless Internet services, demands of consumers related to portable terminals have diversified, and various kinds of additional devices have been installed in portable terminals.

Among them, there is a camera module which photographs a subject as a photograph or a moving picture. Meanwhile, in recent years, a dual camera module in which two camera modules are arranged side by side has been studied.

However, in the conventional dual camera module, the distances between the camera modules are narrow and there is a problem that mutual magnetic field interference occurs.

The present embodiment is intended to provide a structure capable of eliminating mutual interference between magnets in a dual OIS lens driving device structure.

Furthermore, in order to secure the magnetic force of the magnet for driving the AF in the above-mentioned structure, a structure for securing the z-axis length of the magnet is provided.

The dual camera module according to the present embodiment includes a first lens driving device and a second lens driving device including a second surface facing the first surface of the first lens driving device, A housing; A bobbin disposed within the housing; A first coil disposed in the bobbin; A magnet disposed in the housing and facing the first coil; A base disposed below the housing; A substrate including a second coil facing the magnet and disposed on the base; An upper elastic member disposed above the bobbin and coupled to the bobbin and the housing; And a support member coupled to the upper elastic member and the substrate, wherein the magnet is disposed on the side of the housing, the upper surface of the magnet overlaps with the upper elastic member in the direction of the optical axis, and the upper surface of the magnet overlaps with the upper elastic member in the direction of the optical axis And may include a non-overlapping first portion.

The upper surface of the magnet further includes a second portion overlapping with the housing in the direction of the optical axis and not overlapping with the upper elastic member in the direction of the optical axis, and an upper plate of the housing is provided above the second portion of the upper surface of the magnet .

The first portion of the upper surface of the magnet may contact the upper elastic member.

In the dual camera module, the first lens driving device may further include a cover coupled to the base and receiving the housing therein, and a stopper protruding toward the upper plate of the cover may be disposed on the upper plate of the housing.

The housing includes a first side disposed on the first surface side of the first lens driving device, a second side disposed on the opposite side of the first side, and a second side disposed between the first side and the second side, Wherein the magnet includes a first magnet disposed on a second side of the housing, a second magnet disposed on a third side of the housing, and a third magnet disposed on the second side of the housing, And a third magnet disposed on the four sides.

A dummy member having a mass corresponding to the first magnet may be disposed on the first side of the housing.

The top plate of the housing may be disposed on each of the second side, the third side and the fourth side and may not be disposed on the first side.

The lens driving apparatus according to the present embodiment includes a housing; A bobbin disposed within the housing; A first coil disposed in the bobbin; A magnet disposed in the housing and facing the first coil; A base disposed below the housing; A substrate including a second coil facing the magnet and disposed on the base; An upper elastic member disposed above the bobbin and coupled to the bobbin and the housing; And a support member coupled to the upper elastic member and the substrate, wherein the magnet is disposed on the side of the housing, and the upper surface of the magnet is disposed on the same plane as the upper surface of the housing to which the upper elastic member is coupled .

The mutual interference between the magnets in the structure of the dual OIS lens driving device can be minimized through the present embodiment.

Further, in the above-mentioned structure, a magnetic force for driving the AF can be secured.

1 is a perspective view showing a dual camera module according to the present embodiment.
2 is a perspective view showing a state in which the cover of each of the first lens driving device and the second lens driving device according to the present embodiment is removed.
3 is a perspective view showing the arrangement structure of magnets, coils, and dummy members of the first lens driving device and the second lens driving device according to the present embodiment.
4 is an exploded perspective view of the first lens driving device according to the present embodiment.
5 is an exploded perspective view of the first mover of the first lens driving device according to the present embodiment.
6 is an exploded perspective view of the second mover of the first lens driving device according to the present embodiment.
7 is an exploded perspective view of the stator of the first lens driving device according to the present embodiment.
8 is an exploded perspective view of the elastic member of the first lens driving device according to the present embodiment.
9 is a sectional view of the first lens driving device according to the present embodiment.
10 is a sectional view of a part of the first lens driving apparatus according to the present embodiment.
11 is a plan view of a part of the first lens driving apparatus according to the present embodiment.
12 is an exploded perspective view of the second lens driving device according to the present embodiment.
13 is a diagram showing a magnetic field distribution of a magnet of a dual camera module according to a comparative example.
14 is a diagram showing the magnetic field distribution of the magnet of the dual camera module according to the present embodiment.
15 is a perspective view of an optical apparatus according to the present embodiment.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the technical spirit of the present invention is not limited to some embodiments described.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements.

When a component is described as being "connected" or "coupled" to another component, the component may be directly coupled or coupled to the other component, but another component It is to be understood that the elements may be " connected " or " coupled ".

The 'optical axis direction' used below is defined as the optical axis direction of the lens coupled to the lens driving device. On the other hand, 'optical axis direction' can correspond to 'vertical direction', 'z axis direction', and the like.

The autofocus function is used to adjust the distance to the image sensor by moving the lens in the direction of the optical axis according to the distance of the subject so that a clear image of the subject can be obtained with the image sensor. Function. On the other hand, 'autofocus' can be mixed with 'AF (Auto Focus)'.

The 'camera shake correction function' used below is defined as a function of moving or tilting the lens in the direction perpendicular to the optical axis direction so as to cancel the vibration (motion) generated in the image sensor by the external force. Meanwhile, 'camera shake correction' can be mixed with 'OIS (Optical Image Stabilization)'.

Hereinafter, the configuration of an optical apparatus according to this embodiment will be described with reference to the drawings.

15 is a perspective view of an optical apparatus according to the present embodiment.

The optical device may be any one of a mobile phone, a mobile phone, a smart phone, a portable smart device, a digital camera, a laptop computer, a digital broadcast terminal, a PDA (Personal Digital Assistants), a PMP Lt; / RTI > However, the type of the optical device is not limited thereto, and any device for photographing the image or the photograph may be referred to as an optical device.

The optical device may include the main body 1. [ The main body 1 can form an appearance of an optical device. The main body 1 can accommodate the camera module 3. The display unit 2 may be disposed on one side of the main body 1. [ For example, the display unit 2 and the camera module 3 are disposed on one side of the main body 1, and the camera module 3 is further disposed on the other side (the side opposite to the one side) of the main body 1 .

The optical device may include a display portion 2. [ The display unit 2 may be disposed on one side of the main body 1. [ The display unit 2 can output the image photographed by the camera module 3.

The optical device may include a camera module 3. The camera module 3 may be disposed in the main body 1. [ At least a part of the camera module 3 can be housed inside the main body 1. [ A plurality of camera modules 3 may be provided. The camera module 3 can be disposed on one side of the main body 1 and on the other side of the main body 1, respectively. The camera module 3 can take an image of a subject. In this embodiment, a dual camera module may be applied to the camera module 3 of the optical device.

Hereinafter, the configuration of a dual camera module according to the present embodiment will be described with reference to the drawings.

1 is a perspective view showing a dual camera module according to the present embodiment.

The dual camera module may include a first camera module and a second camera module. The dual camera module may include a first lens driving device 1000 and a second lens driving device 2000. The first camera module may include a first lens driving apparatus 1000. The second camera module may include a second lens configuration device 2000. In this embodiment, each of the first and second lens driving apparatuses 1000 and 2000 may perform an autofocus function and / or a camera shake correction function. That is, in this embodiment, the first and second lens driving apparatuses 1000 and 2000 may be an 'OIS module (Optical Image Stabilization Module)', an 'OIS actuator', or an 'AF actuator'. The dual camera module may include a first lens driving device 1000 including a first side and a second lens driving device 2000 including a second side opposite the first side. The first surface may be one surface of the cover 1100 of the first lens driving apparatus 1000 to be described later and the second surface may be a surface of the cover 2100 of the second lens driving apparatus 2000 described later. The dual camera module may include first and second lens driving apparatuses 1000 and 2000 arranged side by side on the printed circuit board 11. In another embodiment, the printed circuit board 11 may be separated so that the first lens driving apparatus 1000 is disposed on the first printed circuit board and the second lens driving apparatus 2000 is disposed on the second printed circuit board have.

The dual camera module may include a lens module. The lens module may include at least one lens. The lens module may include a lens and a barrel. The lens module may include a first lens module coupled to the first lens driving device 1000 and a second lens module coupled to the second lens driving device 2000. [ The first lens module may be coupled to the bobbin 1210 of the first lens driving apparatus 1000. The first lens module may be coupled to the bobbin 1210 by screws and / or adhesives. The first lens module can move integrally with the bobbin 1210. [ And the second lens module may be coupled to the bobbin 2210 of the second lens driving device 2000. The second lens module may be coupled to the bobbin 2210 by screws and / or adhesives. The second lens module can move integrally with the bobbin 1210.

The dual camera module may include a filter. The filter may include an infrared filter. The infrared filter can block the light of the infrared region from entering the image sensor. An infrared filter may be disposed between the lens module and the image sensor. The infrared filter includes a first infrared filter disposed below the lens coupled to the first lens driving apparatus 1000 and a second infrared filter disposed below the lens coupled to the second lens driving apparatus 2000 . For example, the infrared filter may be disposed in the sensor base 12 (13). In another example, an infrared filter may be disposed in base 1430 (2430).

The dual camera module may include a printed circuit board (11). The first lens driving apparatus 1000 and the second lens driving apparatus 2000 may be disposed on the printed circuit board 11. [ At this time, the first sensor base 12 may be disposed between the printed circuit board 11 and the first lens driving apparatus 1000. A second sensor base 13 may be disposed between the printed circuit board 11 and the second lens driving device 2000. The printed circuit board 11 may be electrically connected to the first and second lens driving devices 1000 and 2000. An image sensor may be disposed on the printed circuit board 11. [ The printed circuit board 11 may be electrically connected to the image sensor.

The dual camera module may include an image sensor. The image sensor may be disposed on the printed circuit board 11. [ The image sensor can be electrically connected to the printed circuit board (11). In one example, the image sensor may be coupled to the printed circuit board 11 by Surface Mounting Technology (SMT). As another example, the image sensor may be coupled to the printed circuit board 11 by a flip chip technique. The image sensor includes a first image sensor disposed on the lower side of the lens coupled to the first lens driving apparatus 1000 and a second image sensor disposed on the lower side of the lens coupled to the second lens driving apparatus 2000 . The image sensor can be arranged so that the lens and the optical axis coincide. That is, the optical axis of the image sensor and the optical axis of the lens can be aligned. The image sensor can convert the light irradiated to the effective image area of the image sensor into an electrical signal. The image sensor may be any one of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID.

The dual camera module may include a control unit. The control unit may be disposed on the printed circuit board (11). The control unit can individually control the direction, intensity, and amplitude of the current supplied to the first coil 1220 and the second coil 1422 of the first lens driving apparatus 1000. The control unit can individually control the direction, intensity, and amplitude of the current supplied to the first coil 2220 and the second coil 2422 of the second lens driving apparatus 2000. The control unit may control the first and second lens driving apparatuses 1000 and 2000 to perform the autofocus function and / or the camera shake correction function. Further, the control unit may perform autofocus feedback control and / or camera shake correction feedback control for the first and second lens driving apparatuses 1000 and 2000.

Hereinafter, the configuration of the first lens driving apparatus will be described with reference to the drawings.

FIG. 2 is a perspective view showing a state in which the cover of each of the first lens driving apparatus and the second lens driving apparatus according to the present embodiment is removed, FIG. 3 is a perspective view of the first lens driving apparatus and the second lens driving apparatus FIG. 4 is an exploded perspective view of the first lens driving apparatus according to the present embodiment, and FIG. 5 is a sectional view of the first lens driving apparatus according to the present embodiment Fig. 6 is an exploded perspective view of the second mover of the first lens driving device according to the present embodiment, Fig. 7 is an exploded perspective view of the stator of the first lens driving device according to the present embodiment, and Fig. 8 is an exploded perspective view of the elastic member of the first lens driving apparatus according to the present embodiment, FIG. 9 is a sectional view of the first lens driving apparatus according to the present embodiment, FIG. 10 is a cross- Sectional view of a portion of Fig. 11 FIG. 13 is a view showing a magnetic field distribution of a magnet of a dual camera module according to a comparative example, and FIG. 14 is a view showing a magnetometer of a dual camera module according to the present embodiment Fig.

The first lens driving apparatus 1000 may be a voice coil motor (VCM). Further, the first lens driving apparatus 1000 may be an OIS, and may be an OIS for Dual OIS.

The first lens driving apparatus 1000 may include a cover 1100. The cover 1100 can be coupled to the base 1430. The cover 1100 can house the housing 1310 inside. The cover 1100 may form an appearance of the first lens driving apparatus 1000. [ The cover 1100 may be in the form of a hexahedron with a lower surface opened. The cover 1100 may be non-magnetic. The cover 1100 may be formed of a metal material. The cover 1100 may be formed of a metal plate. The cover 1100 may be connected to the ground portion of the printed circuit board 11. Through this, the cover 1100 can be grounded. The cover 1100 may block electromagnetic interference (EMI). At this time, the cover 1100 may be referred to as an EMI shield can.

The cover 1100 may include an upper plate 1110 and a side plate 1120. The cover 1100 may include a top plate 1110 and a side plate 1120 extending downward from an outer periphery or edge of the top plate 1110. The lower end of the side plate 1120 of the cover 1100 may be disposed at the step 1434 of the base 1430. [ The inner surface of the side plate 1120 of the cover 1100 can be joined to the base 1430 by an adhesive.

The top plate 1110 of the cover 1100 may include a hole 1111. The hole 1111 may be formed in the top plate 1110 of the cover 1100. The hole 1111 can expose the lens upward. The hole 1111 may be formed in a size and shape corresponding to the lens. The size of the hole 1111 may be larger than the diameter of the lens module so that the lens module can be inserted and assembled through the hole 1111. The light introduced through the hole 1111 can pass through the lens. At this time, the light passing through the lens can be converted into an electrical signal in the image sensor and can be obtained as an image.

The first lens driving apparatus 1000 may include a first mover 1200. The first movable element 1200 can be coupled to the lens. The first mover 1200 can be coupled to the second mover 1300 through the elastic member 1500. [ The first mover 1200 can move through the interaction with the second mover 1300. [ At this time, the first mover 1200 can move integrally with the lens. On the other hand, the first mover 1200 can move during AF driving. At this time, the first mover 1200 may be referred to as an 'AF mover'. However, the first mover 1200 can move even during OIS driving.

The first mover 1200 may include a bobbin 1210. The bobbin 1210 may be disposed in or on the inside of the housing 1310. The bobbin 1210 may be disposed in the hole 1311 of the housing 1310. The bobbin 1210 may be movably coupled to the housing 1310. The bobbin 1210 can move in the direction of the optical axis with respect to the housing 1310. A lens may be coupled to the bobbin 1210. The bobbin 1210 and the lens may be coupled by a screw connection and / or an adhesive. The first coil 1220 may be coupled to the bobbin 1210. The upper elastic member 1510 may be coupled to the upper or upper surface of the bobbin 1210. A lower elastic member 1520 may be coupled to the lower or lower surface of the bobbin 1210. The bobbin 1210 may be bonded to the elastic member 1500 by thermal welding and / or an adhesive. The bonding agent for bonding the bobbin 1210 and the lens and the bobbin 1210 and the elastic member 1500 may be an epoxy which is cured by at least one of ultraviolet (UV), heat, and laser.

The bobbin 1210 may include a hole 1211. The hole 1211 can penetrate the bobbin 1210 in the optical axis direction. The lens module can be accommodated in the hole 1211. For example, a thread corresponding to a thread formed on the outer circumferential surface of the lens module may be formed on the inner circumferential surface of the bobbin 1210 forming the hole 1211.

The bobbin 1210 may include a protrusion 1212. The protrusion 1212 may be disposed on the side surface of the bobbin 1210. The protrusion 1212 may protrude from the side surface of the bobbin 1210 and may be integrally formed. The first coil 1220 may be wound on the projection 1212. Alternatively, the first coil 1220 already wound on the projection 1212 can be engaged. The protrusion 1212 may include a first protrusion and a second protrusion. The bobbin 1210 may include a first projection disposed on a first side of the bobbin 1210 and a second projection disposed on a second side disposed opposite the first side of the bobbin 1210. Each of the first projection and the second projection may be divided into two projections. Alternatively, each of the first projection and the second projection may be formed in a straight line without separating. The first protrusion may be wound with the first coil unit 1221. And the second projection may be wound with the second coil unit 1222. [

The first mover 1200 may include a first coil 1220. The first coil 1220 may be disposed on the bobbin 1210. The first coil 1220 may be disposed between the bobbin 1210 and the housing 1310. The first coil 1220 may be disposed on the outer peripheral surface of the bobbin 1210. The first coil 1220 may be wound directly on the bobbin 1210. The first coil 1220 may be opposed to the magnet 1320. The first coil 1220 can be electromagnetically interacted with the magnet 1320. In this case, when an electric current is supplied to the first coil 1220 and an electromagnetic field is formed around the first coil 1220, electromagnetic coupling between the first coil 1220 and the magnet 1320 causes the first coil 1220 can be moved with respect to the magnet 1320. The first coil 1220 may be a single coil formed integrally.

The first coil 1220 may include both ends for power supply. One end of the first coil 1220 is connected to the first upper elastic unit 1510a and the other end of the first coil 1220 is connected to the second upper elastic unit 1510b Can be combined. That is, the first coil 1220 can be electrically connected to the upper elastic member 1510. More specifically, the first coil 1220 can be sequentially powered via the printed circuit board 11, the substrate 1410, the support member 1600, and the upper elastic member 1510. Alternatively, the first coil 1220 may be electrically connected to the lower elastic member 1520.

The first coil 1220 may include a first coil unit 1221 and a second coil unit 1222 which are spaced apart from each other. The first coil 1220 may include a first coil unit 1221 facing the second magnet unit 1322 and a second coil unit 1222 facing the third magnet unit 1323. [ The first coil unit 1221 and the second coil unit 1222 may be disposed apart from each other on the opposite side of the outer surface of the bobbin 1210. The first coil unit 1221 may be wound around the first protrusion 1212 so as to enclose the upper surface and the lower surface of the first protrusion 1212. The first coil unit 1221 may be inserted into the first protrusion 1212 and the second coil unit 1222 may be inserted into the second protrusion 1213. [ The second coil unit 1222 may be wound on the second protrusion 1213 so as to surround the upper surface and the lower surface of the second protrusion 1213. The first coil unit 1221 and the second coil unit 1222 may be referred to as a 'spectacle coil'. The first coil unit 1221 and the second coil unit 1222 are elliptical. A track shape, and a closed curve shape.

The first coil 1200 may not be opposed to the first magnet unit 1321 of the magnet 1320. More specifically, the first coil 1220 is opposed to the second magnet unit 1322 and the third magnet unit 1323 of the magnet 1320, but may not be opposed to the first magnet unit 1321. The first coil unit 1221 is disposed so as to face the second magnet unit 1322 and the second coil unit 1222 is disposed so as to face the third magnet unit 1323. The first magnet unit 1321 The division structure of the opposing first coils 1220 may not be disposed.

The first coil 1220 may include a connection portion (not shown) for electrically connecting the first coil unit 1221 and the second coil unit 1222. The connection portion of the first coil 1220 may be a connection coil (not shown). One end of the first coil unit 1221 and one end of the second coil unit 1222 may be connected to the connection part of the first coil 1220. The connection portion of the first coil 1220 may be disposed between the first coil unit 1221 and the second coil unit 1222. The connection portion of the first coil 1220 may be opposed to the first magnet unit 1321. [ In other embodiments, the connection portion of the first coil 1220 may be opposed to the dummy member 1330. The connection portion of the first coil 1220 may be disposed between the first magnet unit 1321 and the bobbin 1210 or between the dummy member 1330 and the bobbin 1210.

The distance between the first coil unit 1221 and the second magnet unit 1322 and / or the distance between the second coil unit 1222 and the third magnet unit 1323 (see L1 in Fig. 11) May be 60 [mu] m to 150 [mu] m. The distance between the bobbin 1210 and the first magnet unit 1321 (refer to L2 in Fig. 11) may be 60 mu m to 200 mu m.

The first lens driving apparatus 1000 may include a second mover 1300. The second mover 1300 may be movably coupled to the stator 1400 via a support member 1600. [ The second mover 1300 can support the first mover 1200 through the elastic member 1500. [ The second mover 1300 can move the first mover 1200 or move with the first mover 1200. The second mover 1300 can move through interaction with the stator 1400. [ The second mover 1300 can move during OIS driving. At this time, the second mover 1300 may be referred to as an 'OIS mover'. The second mover 1300 can move integrally with the first mover 1200 during OIS driving.

The second mover 1300 may include a housing 1310. The housing 1310 may be disposed outside the bobbin 1210. The housing 1310 can house at least a portion of the bobbin 1210 either inside or inside. The housing 1310 may be disposed (inside) the cover 1100. The housing 1310 may be disposed between the cover 1100 and the bobbin 1210. The housing 1310 may be formed of a material different from that of the cover 1100. The housing 1310 may be formed of an insulating material. The housing 1310 may be formed of an injection molded article. The outer side surface of the housing 1310 may be spaced apart from the inner surface of the side plate 1120 of the cover 1100. Through the spacing space between the housing 1310 and the cover 1100, the housing 1310 can move for OIS driving. A magnet 1320 may be disposed in the housing 1310. The housing 1310 and the magnet 1320 may be bonded together by an adhesive. A top elastic member 1510 may be coupled to the top or top surface of the housing 1310. A lower elastic member 1520 may be coupled to the upper or lower surface of the housing 1310. The housing 1310 may be joined to the elastic member 1500 by thermal fusion bonding and / or adhesive. The adhesive for joining the housing 1310 and the magnet 1320 and the housing 1310 and the elastic member 1500 may be an epoxy that is cured by at least one of ultraviolet (UV), heat, and laser.

The housing 1310 may include four sides and four corner portions disposed between the four sides. The housing 1310 includes a first side disposed on the first surface side of the first lens driving apparatus 1000, a second side disposed on the opposite side of the first side, and a second side disposed between the first side and the second side And may include a third side and a fourth side disposed opposite to each other. The first side of the housing 1310 may be disposed on the first surface side of the first lens driving apparatus 1000. [ The housing 1310 may include four sides, and the four sides may optionally be referred to as a 'first side' to a 'fourth side' to distinguish one another. For example, the second side may be disposed on the first surface side of the first lens driving apparatus 1000, unlike the previous description.

The housing 1310 may include a hole 1311. The hole 1311 may be formed in the housing 1310. The hole 1311 may be formed to penetrate the housing 1310 in the optical axis direction. A bobbin 1210 may be disposed in the hole 1311. The hole 1311 may be formed in a shape corresponding to the bobbin 1210 at least in part. The inner circumferential surface of the housing 1310 forming the hole 1311 may be spaced apart from the outer circumferential surface of the bobbin 1210. However, the housing 1310 and the bobbin 1210 may be overlapped with each other in the direction of the optical axis at least in part to limit the moving stroke distance of the bobbin 1210 in the optical axis direction.

The housing 1310 may include a magnet coupling portion 1312. A magnet 1320 may be coupled to the magnet coupling portion 1312. The magnet coupling portion 1312 may include a receiving groove formed by recessing a portion of the inner circumferential surface and / or the lower surface of the housing 1310. The magnet coupling portion 1312 may be formed on each of the four sides of the housing 1310. Alternatively, the magnet coupling portion 1312 may be formed at each of the four corners of the housing 1310.

The housing 1310 may include a top plate 1313. The housing 1310 may include a top plate 1313 disposed above the upper surface of the magnet 1320. The upper plate 1313 can support the upper surface of the magnet 1320. An adhesive may be disposed between the upper plate 1313 and the magnet 1320. The upper plate 1313 may be disposed above a part of the upper surface of the magnet 1320. A stopper 1314 protruding toward the upper plate 1110 of the cover 1100 may be disposed on the upper plate 1313. The upper plate 1313 may be integrally formed with the housing 1310. The stopper 1314 may be integrally formed with the upper plate 1313. The upper plate 1313 may be disposed on the second side, the third side and the fourth side of the housing 1310, respectively. That is, three upper plates 1313 can be disposed in the housing 1310. The upper plate 1313 may not be disposed on the first side of the housing 1310 where the dummy member 1330 is disposed. The top plate 1313 of the housing 1310 may be disposed on each of the second side, the third side and the fourth side of the housing 1310 and may not be disposed on the first side of the housing 1310. That is, the upper plate 1313 of the housing 1310 may not be disposed on the upper portion of the dummy member 1330 disposed on the first side of the housing 1310. That is, the housing 1310 may be asymmetric with respect to the center axis of the lens coupled to the bobbin 1210. [

The housing 1310 may include a stopper 1314. The stopper 1314 may be disposed on the upper plate 1313. [ The stopper 1314 may be integrally formed with the upper plate 1313. Two stoppers 1314 may be provided for each top plate 1313. That is, a total of six stoppers 1314 may be disposed in the housing 1310. The two stoppers 1314 may be disposed at both ends of the upper plate 1313, respectively. The upper surface of the stopper 1314 may form the upper end of the housing 1310. The stopper 1314 may overlap the upper plate 1110 of the cover 1100 in the optical axis direction. That is, when the housing 1310 continues to move upward, the upper surface of the stopper 1314 comes into contact with the upper plate 1110 of the cover 1100. Therefore, the stopper 1314 can limit the moving distance of the housing 1310 to the upper side.

The second mover 1300 may include a magnet 1320. The magnet 1320 may be disposed in the housing 1310. The magnet 1320 may be fixed to the housing 1310 by an adhesive. The magnet 1320 may be disposed between the bobbin 1210 and the housing 1310. The magnet 1320 can be opposed to the first coil 1220. The magnet 1320 may be electromagnetically interacted with the first coil 1220. The magnet 1320 can be opposed to the second coil 1422. The magnet 1320 may be electromagnetically interacted with the second coil 1422. The magnet 1320 can be commonly used for AF driving and OIS driving. The magnet 1320 may be disposed on the side of the housing 1310. At this time, the magnet 1320 may be a flat plate magnet having a flat plate shape. Alternatively, the magnet 1320 may be disposed at a corner of the housing 1310. [ At this time, the magnet 1320 may be a corner magnet having an inner side surface having a hexahedron shape wider than the outer side surface.

In this embodiment, the upper surface of the magnet 1320 may include a first portion overlapping with the upper elastic member 1510 in the optical axis direction. The first portion of the upper surface of the magnet 1320 may not overlap with the housing 1310 in the direction of the optical axis. The first portion of the upper surface of the magnet 1320 may be exposed from the housing 1310 so as to face the upper elastic member 1510. [ The first portion of the upper surface of the magnet 1320 may contact the upper elastic member 1510. [ The upper surface of the magnet 1320 may include a second portion that overlaps with the housing 1310 in the optical axis direction. An upper plate 1313 of the housing 1310 may be disposed above the second portion of the upper surface of the magnet 1320. The second portion of the upper surface of the magnet 1320 may be engaged with the upper plate 1313 of the housing 1310. [ The second portion of the upper surface of the magnet 1320 may not overlap with the upper elastic member 1510 in the direction of the optical axis. The upper surface of the magnet 1320 may further include a third portion that does not overlap with the housing 1310 and the upper elastic member 1510 in the direction of the optical axis. That is, the upper surface of the magnet 1320 has a first portion overlapping the upper elastic member 1510 in the direction of the optical axis, a second portion overlapping the upper plate 1313 of the housing 1310, a second portion overlapping the upper elastic member 1510, And a third portion that does not overlap with all of the top plate 1313 of the housing 1310. [ However, the third part may not exist.

In this embodiment, the upper surface of the magnet 1320 may be disposed on the same plane as the upper surface of the housing 1310 to which the upper elastic member 1510 is coupled. For this structure, a part of the housing 1310 may be omitted in this embodiment. That is, the structure can be described as a part of the housing 1310 is omitted and the upper elastic member 1510 is disposed at the corresponding portion. A portion of the upper surface of the magnet 1320 may contact the upper elastic member 1510. [ Further, another portion of the upper surface of the magnet 1320 may contact the upper plate 1313 of the housing 1310. [

The magnets 1320 may include a plurality of magnets that are spaced apart from each other. The magnets 1320 may include three magnets that are spaced apart from each other. The magnet 1320 may include first to third magnet units 1321, 1322, and 1323. The magnet 1320 includes a first magnet unit 1321 disposed on the second side of the housing 1310, a second magnet unit 1322 disposed on the third side of the housing 1310, And a third magnet unit 1323 disposed on the fourth side. The first magnet unit 1321 can face the first coil unit 1422a of the second coil 1422. [ The second magnet unit 1322 may face the first coil unit 1221 of the first coil 1220 and face the second coil unit 1422b of the second coil 1422. [ The third magnet unit 1323 may face the second coil unit 1222 of the first coil 1220 and may face the third coil unit 1422c of the second coil 1422. [ The second magnet unit 1322 and the third magnet unit 1323 can move the bobbin 1210 in the optical axis direction. The first magnet unit 1321, the second magnet unit 1322 and the third magnet unit 1323 can move the housing 1310 in a direction perpendicular to the optical axis direction.

The first magnet unit 1321 may be a 2 pole magnet. In this embodiment, the second magnet unit 1322 and the third magnet unit 1323 may be a 4 pole magnet. The bipolar magnet may be a bipolar magnet, and the quadrupole magnet may be a quadrupole magnet. The magnetic interference between the magnets 1320 of the first lens driving apparatus 1000 and the magnets 2320 of the second lens driving apparatus 2000 can be reduced. In the comparative example, the second magnet unit 1322 and the third magnet unit 1323 are provided as bipolar magnets. Fig. 13 is a view showing the magnetic field distribution of the comparative example. Fig. 14 is a view showing the magnetic field distribution of the present embodiment. Comparing FIG. 14 with FIG. 13, it can be seen that the magnetic interference between the magnet 1320 of the first lens driving apparatus 1000 and the magnet 2320 of the second lens driving apparatus 2000 is reduced or eliminated.

Each of the second magnet unit 1322 and the third magnet unit 1323 may include a first surface opposed to the first coil 1220. The first surface may include a neutral portion 1324 that is disposed horizontally in the center portion. Neutral portion 1324 may be a neutral region and may not include polarity. The first surface may have a polarity different from that of the upper portion and the lower portion with respect to the neutral portion 1324. [ That is, the upper side of the neutral portion 1324 may have an S pole, and the lower side of the neutral portion 1324 may have an N pole. As an alternative, the upper side of the neutral portion 1324 may have an N pole, and the lower side of the neutral portion 1324 may have an S pole. The vertical length (see L in Fig. 10) of the neutral portion 1324 may be 0.1 mm to 0.5 mm.

Each of the first to third magnet units 1321, 1322, and 1323 may include a second surface opposing the second coil 1422 and a third surface disposed opposite to the second surface. The second surface may be the inner side which is the center side of the first lens driving apparatus 1000, and the third surface may be the outer side opposite the inner side. The second and third surfaces of each of the first to third magnet units 1321, 1322, and 1323 may have different polarities. That is, the second surface may have N poles and the third surface may have S poles. Alternatively, the second surface may have an S pole and the third surface may have an N pole.

The second mover 1300 may include a dummy member 1330. A dummy member 1330 may be disposed on the first side of the housing 1310. The dummy member 1330 may include a nonmagnetic material. The dummy member 1330 may have a mass corresponding to the first magnet unit 1321. [ The dummy member 1330 may be disposed at a position corresponding to the first magnet unit 1321 for weight balance. Alternatively, the intensity of the magnetism of the dummy member 1330 may be weaker than the intensity of the magnetism of the first magnet unit 1321. The dummy member 1330 may be disposed to center the weight on the opposite side of the first magnet unit 1321. The dummy member 1330 may be non-magnetic. The dummy member 1330 may be made of tungsten at 95% or more. That is, the dummy member 1330 may be a tungsten alloy. For example, the specific gravity of the dummy member 1330 may be 18,000 or more. The dummy member 1330 can be entirely exposed from the housing 1310 on the upper surface. That is, the upper surface of the dummy member 1330 may overlap or not be supported in the direction of the optical axis with the housing 1310. The upper plate 1313 of the housing 1310 may not be disposed above the dummy member 1330. [ The second coil 1422 may not be disposed between the dummy member 1330 and the substrate 1410. [

The dummy member 1330 may include a shape for being assembled to the housing 1310. [ The dummy member 1330 may include protrusions protruding from both sides. The dummy member 1330 may include a shape for interference avoidance with adjacent motion components. The dummy member 1330 may include a groove formed at a portion where the upper surface and the inner surface meet. The length of the outer surface of the dummy member 1330 in the horizontal direction may be shorter than the length in the corresponding direction of the first magnet unit 1321. [ The thickness of the dummy member 1330 may correspond to the thickness of the first magnet unit 1321. Alternatively, the thickness of the dummy member 1330 may be larger or smaller than the thickness of the first magnet unit 1321. The shape of the dummy member 1330 may be different from the shape of the first magnet unit 1321. [ Alternatively, the shape of the dummy member 1330 may correspond to the shape of the first magnet unit 1321. The dummy member 1330 may be disposed at the same height as the first magnet unit 1321. [ Alternatively, the dummy member 1330 may be disposed higher or lower than the first magnet unit 1321. The upper end of the dummy member 1330 may be disposed at the same height as the upper end of the first magnet unit 1321. Alternatively, the upper end of the dummy member 1330 may be disposed higher or lower than the upper end of the first magnet unit 1321. The lower end of the dummy member 1330 may be disposed at a height corresponding to the lower end of the first magnet unit 1321. Alternatively, the lower end of the dummy member 1330 may be disposed higher or lower than the lower end of the first magnet unit 1321. 3, the dummy member 1330 may be disposed between the magnet 1320 of the first lens driving apparatus 1000 and the magnet 2320 of the second lens driving apparatus 2000. [ The transverse length of the dummy member 1330 may be the same as the transverse length of the first magnet unit 1321, or may be shorter or longer. The vertical length of the dummy member 1330 may be equal to, shorter or longer than the transverse length of the first magnet unit 1321.

The first lens driving apparatus 1000 may include a stator 1400. The stator 1400 may be disposed below the first and second mover members 1200 and 1300. The stator 1400 can movably support the second mover 1300. [ The stator 1400 can move the second mover 1300. At this time, the first mover 1200 can move together with the second mover 1300. [

The stator 1400 may include a substrate 1410. The substrate 1410 may include a second coil 1422 facing the magnet 1320. Or the substrate 1410 may include a circuit member 1420 that includes a second coil 1422 that is opposite the magnet 1320. Substrate 1410 may be disposed on base 1430. The substrate 1410 may be disposed between the housing 1310 and the base 1430. A support member 1600 may be coupled to the substrate 1410. The substrate 1410 can supply power to the second coil 1422. The substrate 1410 may be coupled to the circuit member 1420. The substrate 1410 may be coupled to the second coil 1422. The substrate 1410 may be coupled to a printed circuit board 11 disposed below the base 1430. The substrate 1410 may include a flexible printed circuit board (FPCB). The substrate 1410 can be bent at a portion.

The substrate 1410 may include a body portion 1411. The substrate 14100 may include a hole 1411a formed in the body portion 1411. The substrate 1410 may include a hole 1411a corresponding to a lens coupled to the bobbin 1210. A hole 1411a may be eccentrically disposed on the first surface side of the first lens driving apparatus 1000. In this embodiment, the number of turns of the first coil unit 1422a through the eccentric arrangement structure of the holes 1411a is The substrate 1410 and the circuit member 1420. The hole 1411a of the substrate 1410 is formed closer to one side of the substrate 1411 One side of the substrate 1410 may be adjacent to the dummy member 1330. The shortest distance from the other side opposite to one side of the substrate 1410 to the hole 1411a is a distance May be larger than the shortest distance to the hole 1411a.

The substrate 1410 includes a hole 1411a, an inner peripheral surface formed by the hole 1411a, a first side disposed on the first side of the housing 1310, and a second side disposed on the second side of the housing 1310 Lt; / RTI > The distance between the inner circumferential surface of the substrate 1410 and the second side of the substrate 1410 (see W4 in Fig. 7) is larger than the distance between the inner circumferential surface of the substrate 1410 and the first side of the substrate 1410 ). A first coil unit 1422a may be disposed between the inner circumferential surface of the substrate 1410 and the second side of the substrate 1410. [ The second coil 1422 may not be disposed between the inner circumferential surface of the substrate 1410 and the first side of the substrate 1410. [

The substrate 1410 has a first side disposed on the first surface side of the first lens driving apparatus 1000, a second side disposed on the opposite side of the first side, and a second side disposed between the first side and the second side And may include a third side and a fourth side disposed opposite to each other. At this time, the distance between the third side and the fourth side (see W1 in Fig. 7) may be longer than the distance between the first side and the second side (see W2 in Fig. 7). The length L1 in the longitudinal direction of the first coil unit 1422a is formed longer than the length L2 in the longitudinal direction of the second and third coil units 1422b and 1422c through the above- A space can be secured.

The substrate 1410 may include a terminal portion 1412. The terminal portion 1412 is electrically connected to the substrate 1410? And may extend from the body portion 1411. [ The terminal portion 1412 may be formed by bending a part of the substrate 1410 downward. At least a part of the terminal portion 1412 may be exposed to the outside. The terminal portion 1412 may be coupled to the printed circuit board 11 disposed below the base 1430 by soldering. The terminal portion 1412 may be disposed in the terminal accommodating portion 1433 of the base 1430. [

The substrate 1410 may include a circuit member 1420. The stator 1400 may include a circuit member 1420. The circuit member 1420 may be disposed on the base 1430. The circuit member 1420 may be disposed on the substrate 1410. The circuit member 1420 may be disposed between the magnet 1320 and the base 1430. Here, although the circuit member 1420 is described as being separate from the substrate 1410, the circuit member 1420 can be understood as a constituent included in the substrate 1410. [

The circuit member 1420 may include a substrate portion 1421. The substrate portion 1421 may be a circuit board. The substrate portion 1421 may be an FPCB. The second coil 1422 may be integrally formed with a fine pattern coil (FP coil) on the substrate portion 1421. A hole through which the support member 1600 passes may be formed in the substrate portion 1421. [ A hole 1421a may be formed in the substrate portion 1421. [ The holes 1421a of the substrate portion 1421 may be formed to correspond to the holes 1411a of the substrate 1410. [

Circuit member 1420 may include a second coil 1422. And the second coil 1422 can face the magnet 1320. [ The second coil 1422 can be electromagnetically interacted with the magnet 1320. In this case, when a current is supplied to the second coil 1422 to form a magnetic field around the second coil 1422, the magnet 1320 is magnetically coupled to the second coil 1422 by the electromagnetic interaction between the second coil 1422 and the magnet 1320. [ Can move relative to the second coil 1422. The second coil 1422 can move the housing 1310 and the bobbin 1210 in a direction perpendicular to the optical axis with respect to the base 1430 through an electromagnetic interaction with the magnet 1320. [ The second coil 1422 may be a fine pattern coil (FP coil) formed integrally with the base plate 1421.

The second coil 1422 includes a first coil unit 1422a facing the first magnet unit 1321, a second coil unit 1422b facing the second magnet unit 1322, 1323 and a third coil unit 1422c opposite to the third coil unit 1422c. The number of turns of the coil in the first coil unit 1422a may be greater than the number of turns of the coil in the second coil unit 1422b. The number of times the coil is wound in the third coil unit 1422c may correspond to the number of times the coil is wound in the second coil unit 1422b. In the present embodiment, movement in the X axis direction during the OIS driving can be performed through the first coil unit 1422a, and movement in the Y axis direction can be performed through the second coil unit 1422b and the third coil unit 1422c . Therefore, in this embodiment, the number of turns of the first coil unit 1422a is made higher than the number of turns of the second coil unit 1422b and the third coil unit 1422c in order to supplement the insufficient driving force in the X- . For example, the ratio of the number of turns of the first coil unit 1422a to the number of turns of the second coil unit 1422b (or the third coil unit 1422c) may be 1.5: 2.0 to 1: 1. This is to compensate for the fact that the second coil 1422 is not disposed at a position opposite to the first coil unit 1422a. That is, the ratio of the number of turns of the first coil unit 1422a to the number of turns of the second coil unit 1422b (or the third coil unit 1422c) can be arranged to 1.5: 2.0 due to spatial limitation. The length in the longitudinal direction of the first coil unit 1422a (see L1 in Fig. 7) is longer than the length in the longitudinal direction of the second coil unit 1422b and the third coil unit 1422c (see L2 in Fig. 7) . The length in the width direction of the first coil unit 1422a (see L3 in Fig. 7) is longer than the width direction (see L4 in Fig. 7) of each of the second coil unit 1422b and the third coil unit 1422c .

The center axis (see C1 in FIG. 9) of the lens coupled to the bobbin 1210 in this embodiment is located in the direction of the dummy member 1330 from the central axis of the first lens driving apparatus 1000 It can be arranged eccentrically. The center axis C1 of the bobbin 1210 may be disposed eccentrically in the direction of the dummy member 1330 from the center axis C2 of the housing 1310. [ At this time, the center axis C1 of the lens can coincide with the center axis C1 of the bobbin 1210 or the center axis of the hole 1311 of the housing 1310. [ The center axis C2 of the first lens driving apparatus 1000 and the center axis C2 of the housing 1310 may coincide with each other. The center axis C2 of the housing 1310 may be a center axis of the housing 1310, not the center axis of the hole 1311 of the housing 1310, Further, the hole 1411a may be disposed eccentrically to the first surface side of the first lens driving apparatus 1000. [ The length L1 in the longitudinal direction of the first coil unit 1422a is formed longer than the length L2 in the longitudinal direction of the second and third coil units 1422b and 1422c through the above- A space can be secured.

The stator 1400 may include a base 1430. The base 1430 may be disposed below the housing 1310. The base 1430 may be disposed on the lower side of the substrate 1410. The substrate 1410 may be disposed on the upper surface of the base 1430. The base 1430 can be coupled to the cover 1100. The base 1430 may be disposed on the upper side of the printed circuit board 11.

The base 1430 may include a hole 1431. Holes 1431 may be formed in base 1430. The hole 1431 may be formed to penetrate the base 1430 in the optical axis direction. Light passing through the lens module through the hole 1431 can be incident on the image sensor. That is, light passing through the lens module can be incident on the image sensor through the hole 1421a of the circuit member 1420, the hole 1411a of the substrate 1410, and the hole 1431 of the base 1430.

The base 1430 may include a sensor coupling portion 1432. A second sensor (not shown) may be disposed in the sensor coupling portion 1432. The sensor coupling portion 1432 can receive at least a part of the second sensor. The sensor coupling portion 1432 may include a groove formed by recessing the upper surface of the base 1430. The sensor coupling portion 1432 may include two grooves. At this time, a second sensor is disposed in each of the two grooves to sense movement of the magnet 1320 in the X-axis direction and in the Y-axis direction.

The base 1430 may include a terminal receiving portion 1433. A terminal portion 1412 of the substrate 1410 may be disposed in the terminal accommodating portion 1433. The terminal accommodating portion 1433 may include a groove formed by a part of the side surface of the base 1430 being recessed inward. The width of the terminal accommodating portion 1433 may be formed to correspond to the width of the terminal portion 1412 of the substrate 1410. [ The length of the terminal accommodating portion 1433 may be formed corresponding to the length of the terminal portion 1412 of the substrate 1410.

The base 1430 may include a step 1434. The step 1434 may be formed on the side surface of the base 1430. The stepped portion 1434 can be formed around the outer circumferential surface of the base 1430. The step portion 1434 may be formed by recessing the upper portion of the side surface of the base 1430. Alternatively, the stepped portion 1434 may be formed by protruding a lower portion of the side surface of the base 1430. The lower end of the side plate 1120 of the cover 1100 may be disposed on the stepped portion 1434.

The first lens driving apparatus 1000 may include an elastic member 1500. The elastic member 1500 can be coupled to the bobbin 1210 and the housing 1310. The elastic member 1500 can elastically support the bobbin 1210. The elastic member 1500 may have elasticity at least in part. The elastic member 1500 can movably support the bobbin 1210. The elastic member 1500 can support the movement of the bobbin 1210 during AF driving. At this time, the elastic member 1500 may be referred to as an 'AF supporting member'.

The elastic member 1500 may include a top elastic member 1510. The upper elastic member 1510 may be disposed on the upper side of the bobbin 1210. The upper elastic member 1510 may be coupled to the bobbin 1210 and the housing 1310. The upper elastic member 1510 may be coupled to the upper surface of the bobbin 1210. The upper elastic member 1510 may be coupled to the upper surface of the housing 1310. The upper elastic member 1510 may be engaged with the support member 1600. [ The upper elastic member 1510 may be formed of a leaf spring.

The upper elastic member 1510 may be used as a conductive line for supplying electricity to the first coil 1220. [ The upper elastic member 1510 may include a first upper elastic unit 1510a and a second upper elastic unit 1510b that are spaced apart from each other. The first upper elastic unit 1510a may be coupled to one end of the first coil 1220 and the second upper elastic unit 1510b may be coupled to the other end of the first coil 1220. [ The upper elastic member 1510 and the first coil 1220 may be joined by soldering.

The upper elastic member 1510 may include an outer portion 1511. [ The outer portion 1511 may be coupled to the housing 1310. The outer portion 1511 may be coupled to the upper surface of the housing 1310. The outer portion 1511 may include a hole or groove coupled to the projection of the housing 1310. The outer portion 1511 may be fixed to the housing 1310 by an adhesive.

The upper elastic member 1510 may include a medial portion 1512. The inner side 1512 can be coupled to the bobbin 1210. The inner side portion 1512 can be coupled to the upper surface of the bobbin 1210. Inner portion 1512 may include a hole or groove coupled to a projection of bobbin 1210. The inner side portion 1512 can be fixed to the bobbin 1210 by an adhesive.

The upper elastic member 1510 may include a connection portion 1513. The connection portion 1513 can connect the outer portion 1511 and the inner portion 1512. The connection portion 1513 can elastically connect the outer side portion 1511 and the inner side portion 1512. The connection portion 1513 may have elasticity. At this time, the connection portion 1513 may be referred to as an " elastic portion ". The connection portion 1513 may be formed by bending two or more times.

The upper elastic member 1510 may include an engagement portion 1514. [ The engaging portion 1514 can be engaged with the supporting member 1600. [ The engaging portion 1514 may be coupled to the support member 1600 by soldering. The engaging portion 1514 may include a hole or groove coupled with the support member 1600. The engaging portion 1514 may extend from the outer portion 1511. [ The engaging portion 1514 may include a bent portion formed by bending.

The elastic member 1500 may include a lower elastic member 1520. The lower elastic member 1520 may be disposed on the lower side of the bobbin 1210. The lower elastic member 1520 may be coupled to the bobbin 1210 and the housing 1310. The lower elastic member 1520 can be coupled to the lower surface of the bobbin 1210. The lower elastic member 1520 can be coupled to the lower surface of the housing 1310. The lower elastic member 1520 may be formed of a leaf spring. The lower elastic member 1520 may be integrally formed.

The lower elastic member 1520 may include an outer portion 1521. [ The outer portion 1521 can be coupled to the housing 1310. The outer portion 1521 may be coupled to the lower surface of the housing 1310. The outer portion 1521 may include a hole or groove coupled to the projection of the housing 1310. The outer portion 1521 can be fixed to the housing 1310 by an adhesive.

The lower elastic member 1520 may include a medial portion 1522. [ The inner side 1522 can be coupled to the bobbin 1210. The inner side portion 1522 can be coupled to the lower surface of the bobbin 1210. The medial portion 1522 may include a hole or groove coupled to the projection of the bobbin 1210. The inner side portion 1522 can be fixed to the bobbin 1210 by an adhesive.

The lower elastic member 1520 may include a connection portion 1523. The connection portion 1523 can connect the outer portion 1521 and the inner portion 1522. [ The connection portion 1523 can elastically connect the outer portion 1521 and the inner portion 1522. [ The connection portion 1523 may have elasticity. At this time, the connection portion 1523 may be referred to as an " elastic portion ". The connection portion 1523 may be formed by bending two or more times.

The first lens driving apparatus 1000 may include a support member 1600. [ The support member 1600 may be a suspension wire. The support member 1600 can movably support the housing 1310. [ The support member 1600 can elastically support the housing 1310. [ The support member 1600 may have elasticity at least in part. The support member 1600 can support the movement of the housing 1310 and the bobbin 1210 during OIS driving. At this time, the support member 1600 may be referred to as an 'OIS support member'. The support member 1600 may include a plurality of wires. The support member 1600 may include four wires that are spaced apart from each other. Alternatively, the support member 1600 may be formed of a leaf spring. The support member 1600 may be coupled to the upper elastic member 1510 and the substrate 1410. The support member 1600 may be coupled to the upper elastic member 1510 and the circuit member 1420 of the substrate 1410. The support member 1600 may be soldered to the lower surface of the substrate 1410 through the hole of the substrate 1410. Alternatively, the support member 1600 may be soldered to the lower surface of the circuit member 1420 through the hole of the circuit member 1420.

The damper (not shown) of the first lens driving apparatus 1000 may be disposed on the support member 1600. [ The damper may be disposed in the support member 1600 and the housing 1310. The damper may be disposed on the elastic member 1500. The damper may be disposed on the elastic member 1500 and / or the support member 1600 to prevent the resonance phenomenon occurring in the elastic member 1500 and / or the support member 1600. [

The first lens driving apparatus 1000 may include a first sensor (not shown). The first sensor may be a sensor for AF feedback. The first sensor may be disposed on the bobbin 1210. Alternatively, the first sensor may be disposed in the housing 1310. The first sensor may sense movement of the first mover 1200. The first sensor may include a Hall sensor. At this time, the Hall sensor can sense the movement of the bobbin 1210 and the lens by sensing the magnetic force of the magnet 1320 or the magnet disposed separately. The sensed value sensed by the first sensor may be used for AF feedback control.

The first lens driving apparatus 1000 may include a second sensor. The second sensor may be a sensor for OIS feedback. A second sensor may be disposed between the base 1430 and the substrate 1410. And the second sensor can sense the movement of the second mover 1300. The second sensor may include a Hall sensor. At this time, the hall sensor senses the magnetic force of the magnet 1320 and can detect the movement of the housing 1310 and the magnet 1320. The sensed value sensed by the second sensor can be used for OIS feedback control.

Hereinafter, the configuration of the second lens driving apparatus will be described with reference to the drawings.

12 is an exploded perspective view of the second lens driving device according to the present embodiment.

The second lens driving apparatus 2000 may be a voice coil motor (VCM).

The second lens driving apparatus 2000 may include a cover 2100. The cover 2100 can house the housing 2310 on the inside. The cover 2100 may be coupled to the base 2430.

The second lens driving apparatus 2000 may include a first movable element 2200. The first movable element 2200 can move during AF driving.

The first movable element 2200 may include a bobbin 2210. The bobbin 2210 may be disposed on the inner side of the housing 2310. The bobbin 2210 may be movably coupled to the housing 2310 by an elastic member 1500.

The first mover 2200 may include a first coil 2220. The first coil 2220 may be disposed on the bobbin 2210. The first coil 2220 can be opposed to the magnet 2320. The first movable element 2200 can perform AF driving through the electromagnetic interaction between the first coil 2220 and the magnet 2320. [

The second lens driving apparatus 2000 may include a second mover 2300. The second movable element 2300 can move during OIS driving. The first mover 2200 can move with the second mover 2300 when the OIS is driven.

The second mover 2300 may include a housing 2310. The housing 2310 may be disposed outside the bobbin 2210. The housing 2310 can house the bobbin 2210 inside. The housing 2310 may be disposed between the bobbin 2210 and the cover 2100.

The second movable element 2300 may include a magnet 2320. The magnet 2320 may be disposed in the housing 2310. The magnet 2320 can be opposed to the first coil 2220. The magnet 2320 can be opposed to the second coil 2422. The magnet 2320 may be disposed at four corners disposed between the four sides of the housing 2310. The magnet 2320 may include four corner magnets disposed in each of the four corner portions.

The second lens driving apparatus 2000 may include a stator 2400. The stator 2400 can movably support the second mover 2300. [

The stator 2400 may include a substrate 2410. The substrate 2410 may be disposed on the base 1430. The substrate 2410 may be disposed between the housing 1310 and the base 1430. The substrate 2410 may include a circuit member 2420 that includes a second coil 2422 facing the magnet 2320. The substrate 2410 may be disposed on the base 2430.

The substrate 2410 may include a terminal portion 2412. The substrate 2410 may include a terminal portion 2412 formed by bending partly. The terminal portion 2412 can be coupled to the printed circuit board 11 by soldering.

The substrate 2410 may include a circuit member 2420. The circuit member 2420 may include a substrate portion and a second coil 2422 formed of a fine pattern coil (FP coil) on the substrate portion. The circuit member 2420 may include a second coil 2422. And the second coil 2422 can face the magnet 2320. [ The OIS drive can be performed by the electromagnetic interaction between the second coil 2422 and the magnet 2320.

The stator 2400 may include a base 2430. The base 2430 may be disposed on the lower side of the housing 2310. The base 2430 can support the substrate 2410.

The second lens driving device 2000 may include an elastic member 2500. The elastic member 2500 may be coupled to the bobbin 2210 and the housing 2310. The elastic member 2500 can support the movement of the bobbin 2210 during AF driving. The elastic member 2500 may include a top elastic member 2510. The upper elastic member 2510 may be disposed on the upper side of the bobbin 2210 and may be coupled to the bobbin 2210 and the housing 2310. The elastic member 2500 may include a lower elastic member 2520. The lower elastic member 2520 may be disposed below the bobbin 2210 and may be coupled to the bobbin 2210 and the housing 2310. [

The second lens driving apparatus 2000 may include a support member 2600. [ The support member 2600 can movably support the second mover 2300. [ The support member 2600 may be coupled to the upper elastic member 2510 and the substrate 2410.

The present embodiment proposes a structure capable of eliminating mutual interference between magnets in a voice coil motor (VCM) structure.

In this embodiment, the magnet 1320 of the first lens driving apparatus 1000 is composed of three magnets, the two magnets may be quadrupole magnets, and the remaining one magnet may be a bipolar magnet. Two first coils 1220 are connected in series to be opposed to the four-pole magnets to provide a driving force required for the AF operation, and a second coil 1422 is disposed at the lower end of each magnet, OIS momentum can be provided. A dummy mass is disposed on the opposite side of the bipolar magnet to prevent the oscillation due to weight eccentricity during OIS operation.

In the mechanism of the present embodiment, the first coil 1220 is linearly wound on two opposite sides of the four sides of the bobbin 1210, and three magnets and a dummy member can be assembled into the housing instead of the four magnets. In the Y direction, propulsive force is generated in the divided configuration of the two quadruple magnet magnets and the pair of second coils 1422, but in the X direction, only the two-pole magnet and the one second coil 1422 have a propulsive force The propulsion force in the X direction is inevitably small. In order to solve this problem, in this embodiment, the lens center axis C1 is eccentric from the product center axis C2 in the direction of the dummy member 1330 and the remaining space on the side of the base 1430 in the two- The number of turns of the coil 1422 is increased to increase the driving force in the X direction.

As in the comparative example, when the bipolar magnet is used alone, the density of the crest distribution with adjacent magnets is increased, so that attractive force or repulsive force is generated between adjacent VCMs, which may cause difficulties in OIS control. The magnetic field distribution according to the comparative example is shown in Fig.

In this embodiment, by applying the quadruple magnet magnet, the magnetic field interference between the magnets of the two lens driving devices can be reduced. This is shown in Fig. Meanwhile, in the present embodiment, when designing negligible force or repulsion between adjacent VCMs due to magnetic field interference, OIS control can be performed while ignoring the influence of magnetic field interference.

In this embodiment, the portion of the housing 1310, which has been in contact with the top surface of the magnet 1320 and has a minimum ejection thickness, is removed and the assembly surface of the upper elastic member 1510 and the magnet 1320, Can be configured to coincide with each other. In this embodiment, the space that is flush with the mounting surface of the upper elastic member 1510 but does not pass through the upper elastic member 1510 is filled with the injection material so that the outer portion of the housing (the stopper 1314) 1310 can be formed. 11, a housing 1310 that exposes a part of the upper surface of the magnet 1320 while maintaining a gap with respect to the cover 1100, as shown in FIG. 11, The magnet 1320 can be mechanically restrained by the upper plate 1313 of the housing 1310 connected to the stopper 1314 of the stopper 1314. [ That is, the mechanical restraining effect of the magnet 1320 and the effect of assembling the upper surface of the magnet 1320 upwardly can be ensured through the present embodiment.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, the present invention includes and operates through one or more of all the elements of the embodiments. It is also to be understood that the term " comprising " as used herein is intended to encompass a wide range of components, including but not limited to other components, Should be construed as being. It is to be understood that the term " disposed " as used herein is to be interpreted as including a case where the term "disposed" is used as a separate member, and a case where the term "

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1000: first lens driving device 2000: second lens driving device

Claims (8)

And a second lens driving device including a first lens driving device and a second surface facing the first surface of the first lens driving device,
The first lens driving device
housing;
A bobbin disposed within the housing;
A first coil disposed in the bobbin;
A magnet disposed in the housing and facing the first coil;
A base disposed below the housing;
A substrate including a second coil facing the magnet and disposed on the base;
An upper elastic member disposed above the bobbin and coupled to the bobbin and the housing; And
And a supporting member coupled to the upper elastic member and the substrate,
Wherein the magnet is disposed on a side of the housing,
Wherein the upper surface of the magnet includes a first portion overlapping with the upper elastic member in the direction of the optical axis and not overlapping with the housing in the direction of the optical axis. The method according to claim 1,
The upper surface of the magnet further includes a second portion overlapping with the housing in the optical axis direction and not overlapping with the upper elastic member in the direction of the optical axis,
And a top plate of the housing is disposed above a second portion of the top surface of the magnet. 3. The method of claim 2,
Wherein the first portion of the upper surface of the magnet is in contact with the upper elastic member. The method according to claim 1,
The first lens driving device further includes a cover coupled to the base and receiving the housing therein,
And a stopper protruding toward the upper plate of the cover is disposed on the upper plate of the housing. The method according to claim 1,
The housing includes a first side disposed on the first surface side of the first lens driving device, a second side disposed on the opposite side of the first side, and a second side disposed between the first side and the second side, And a third side and a fourth side disposed on the opposite side,
Wherein the magnet comprises a first magnet disposed on a second side of the housing, a second magnet disposed on a third side of the housing, and a third magnet disposed on a fourth side of the housing. 6. The method of claim 5,
And a dummy member having a mass corresponding to the first magnet is disposed on a first side of the housing. 6. The method of claim 5,
Wherein the top plate of the housing is disposed on each of the second side, the third side and the fourth side and is not disposed on the first side. housing;
A bobbin disposed within the housing;
A first coil disposed in the bobbin;
A magnet disposed in the housing and facing the first coil;
A base disposed below the housing;
A substrate including a second coil facing the magnet and disposed on the base;
An upper elastic member disposed above the bobbin and coupled to the bobbin and the housing; And
And a supporting member coupled to the upper elastic member and the substrate,
Wherein the magnet is disposed on a side of the housing,
Wherein the upper surface of the magnet is disposed on the same plane as the upper surface of the housing to which the upper elastic member is coupled.

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