Lens driving device and camera module

Abstract

To solve the problem that distances between camera modules are narrow and mutual magnetic field interference occurs in a conventional dual camera module.SOLUTION: The lens driving device comprises: a housing; a bobbin disposed in the housing; a magnet and a dummy member arranged at the housing; a first coil disposed on the bobbin; and a board including a second coil facing the magnet. The housing includes a first side portion and a second side portion facing each other, and a third side portion and a fourth side portion facing each other. The magnet includes a first magnet unit disposed at the first side portion, a second magnet unit disposed at the third side portion, and a third magnet unit disposed at the fourth side portion. The dummy member is disposed at the second side portion.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] This embodiment relates to a lens driving device and a camera module. [Background technology]

[0002] The following description is provided only to provide background information for the present embodiment and does not describe the prior art. It was not.

[0003] As various mobile terminals become widely used and wireless Internet services become commercially available, Accordingly, consumer needs related to mobile terminals have become more diverse, and various additional devices are being installed on mobile terminals. It is attached.

[0004] A typical example of this is the camera module, which captures the subject as photos or videos. Meanwhile, dual camera modules, which have two camera modules arranged side by side, have been researched in recent years. It is being studied.

[0005] In conventional dual camera modules, the distance between the camera modules is narrow, There is a problem of magnetic field interference occurring. Summary of the Invention [Problem to be solved by the invention]

[0006] This embodiment is a method for preventing mutual interference between magnets in a dual OIS lens driving device structure. It tries to provide a structure that can be eliminated.

[0007] Furthermore, in order to secure the magnetic force of the magnet for the AF drive in the above structure, An attempt is made to provide a structure that ensures shaft length. [Means for solving the problem]

[0008] The lens driving device according to the present embodiment includes a housing; a bobbin disposed in the housing; a magnet and a dummy member disposed in the housing; a first a substrate including a coil; and a second coil facing the magnet, and the housing , including a first side and a second side facing each other, and a third side and a fourth side facing each other. The magnet includes a first magnet unit disposed on the first side and a third magnet unit disposed on the third side. a second magnet unit disposed on the fourth side portion, and a third magnet unit disposed on the fourth side portion. The dummy member may include a knit and may be disposed on the second side.

[0009] The lens driving device according to the present embodiment includes a housing; a bobbin disposed in the housing; a magnet disposed in the housing; a first coil disposed in the bobbin; and a substrate including a second coil facing the magnet, and the housings are The magnet includes a first side and a second side that face each other, and a third side and a fourth side that face each other. The magnet unit includes a first magnet unit disposed on the first side and a second magnet unit disposed on the third side. a second magnet unit and a third magnet unit disposed on the fourth side The first magnet unit is a two-pole magnet and is connected to the second magnet unit. The third magnet unit may be a four-pole magnet.

[0010] The first coil includes a first coil unit facing the second magnet unit and a front The magnet assembly may include a second coil unit facing the third magnet unit.

[0011] The first coil is a connecting member that connects the first coil unit and the second coil unit. a connecting portion of the first coil, the connecting portion being connected to the first magnet unit and the bobbin or between the dummy member and the bobbin.

[0012] The first coil is a first coil unit that faces the second magnet unit in the horizontal direction. and a second coil unit facing the third magnet unit in the horizontal direction. The second coil is connected to a third coil unit that faces the first magnet unit in a vertical direction. a fourth coil unit facing the second magnet unit in the vertical direction; a fifth coil unit facing the third magnet unit in the vertical direction; can be done.

[0013] The substrate includes a hole, and the hole of the substrate is adjacent to the dummy member. The insulating layer 14 may be formed closer to one side of the substrate.

[0014] The second magnet unit and the third magnet unit support the bobbin in the optical axis direction. 3. The first magnet unit, the second magnet unit and the third magnet unit are moved in the same direction. The magnet unit can move the housing in a direction perpendicular to the optical axis direction.

[0015] Each of the second magnet unit and the third magnet unit includes the first coil and a first surface facing the first pole, the first surface being capable of having two poles.

[0016] Each of the first to third magnet units includes a second surface facing the second coil. The second surface may have two poles.

[0017] The lens driving device according to the present embodiment includes a housing; a bobbin disposed in the housing; a first coil disposed on the bobbin; a magnet disposed in the housing; and a first substrate including a second coil facing the magnet, and the housing The mask includes a first side and a second side facing each other, and a third side and a fourth side facing each other. The magnet includes a first magnet unit disposed on a first side of the housing, and a second magnet unit disposed on the first side of the housing. a second magnet unit disposed on a third side of the housing; and a fourth magnet unit disposed on a fourth side of the housing. and a third magnet unit disposed on the first coil. The plurality of coil units include a first coil facing the second magnet unit. a second coil unit facing the third magnet unit, The coil unit is not disposed between the bobbin and the first magnet unit. There is.

[0018] The lens driving device according to the present embodiment includes a housing; a bobbin disposed in the housing; a magnet and a dummy member disposed in the housing; a first a substrate including a coil; and a second coil facing the magnet, and the housing , including a first side and a second side facing each other, and a third side and a fourth side facing each other. The magnet includes a first magnet unit disposed on the first side and a third magnet unit disposed on the third side. a second magnet unit disposed on the fourth side portion, and a third magnet unit disposed on the fourth side portion. The dummy member may include a knit, and the dummy member may be disposed on the second side.

[0019] The lens driving device according to the present embodiment includes a housing; a bobbin disposed in the housing; a magnet disposed in the housing; a first coil disposed in the bobbin; and a substrate including a second coil facing the magnet, and the housings are The magnet includes a first side and a second side that face each other, and a third side and a fourth side that face each other. The magnet unit includes a first magnet unit disposed on the first side and a second magnet unit disposed on the third side. a second magnet unit and a third magnet unit disposed on the fourth side The first magnet unit is a two-pole magnet and is connected to the second magnet unit. The third magnet unit may be a four-pole magnet.

[0020] The first coil includes a plurality of coil units, and the plurality of coil units include a first coil unit facing the second magnet unit, and the third magnet unit The coil unit may include a second coil unit facing the first coil unit.

[0021] The coil unit is not disposed between the bobbin and the first magnet unit. There are times when this happens.

[0022] The coil unit may not be disposed between the bobbin and the dummy member. .

[0023] The first magnet unit is a two-pole magnet and is connected to the second magnet unit. The third magnet unit may be a four-pole magnet.

[0024] A dummy member may be included disposed on the second side of the housing.

[0025] The second coil may not be disposed between the dummy member and the substrate.

[0026] The dummy member may include a non-magnetic material.

[0027] The first coil is a connecting member that connects the first coil unit and the second coil unit. a connecting portion of the first coil connected to the first magnet unit and the bobbin or between the dummy member and the bobbin.

[0028] The substrate includes a hole, the hole being closer to one side of the substrate. can be achieved.

[0029] The one side surface of the substrate may be adjacent to the dummy member.

[0030] The shortest distance from the other side of the substrate opposite to the one side to the hole is It may be greater than the shortest distance from the side to said hole.

[0031] The first coil is a first coil unit that faces the second magnet unit in the horizontal direction. and a second coil unit facing the third magnet unit in the horizontal direction. The second coil is connected to a third coil unit that faces the first magnet unit in a vertical direction. a fourth coil unit facing the second magnet unit in the vertical direction; a fifth coil unit facing the third magnet unit in the vertical direction; can be done.

[0032] The first coil unit and the second coil unit may have an elliptical shape, a track shape, a closed curve, It can have at least one of the linear shapes.

[0033] The second magnet unit and the third magnet unit support the bobbin in the optical axis direction. 3. The first magnet unit, the second magnet unit and the third magnet unit are moved in the same direction. The magnet unit can move the housing in a direction perpendicular to the optical axis direction.

[0034] The bobbin includes a first protrusion and a second protrusion disposed on an opposite side to the first protrusion, The first coil unit is disposed so as to cover the first protrusion, and the second coil unit may be disposed so as to cover the second protrusion.

[0035] The lens driving device is disposed on the upper portion of the bobbin and is connected to the bobbin and the housing. an upper elastic member coupled to the substrate; and a support member coupled to the upper elastic member and the substrate. the first coil unit and the second coil unit are electrically connected to each other, The upper elastic member includes a first upper elastic unit and a second upper elastic unit spaced apart from each other, One side end of the first coil unit is connected to the first upper elastic unit. One side end of the coil may be coupled to the second upper elastic unit.

[0036] Each of the second magnet unit and the third magnet unit includes the first coil and a first surface facing the first pole, the first surface being capable of having two poles.

[0037] Each of the first to third magnet units includes a second surface facing the second coil. The second surface may have two poles.

[0038] The camera module according to the present embodiment includes the first lens driving device and the first lens driving A second lens drive assembly may be included adjacent the assembly.

[0039] The second lens driving device is adjacent to a fourth side of the housing of the first lens driving device. the second lens driving device is disposed in a housing; the housing of the second lens driving device a bobbin disposed in the housing; and a bobbin disposed on the outer peripheral surface of the bobbin of the second lens driving device. A third coil is disposed in the housing of the second lens driving device and faces the third coil. and a fourth coil facing the magnet of the second lens driving device. The magnet of the second lens driving device is disposed in a housing of the second lens driving device. The magnet unit may include four magnet units disposed at the corners of the ring.

[0040] The dual camera module according to the present embodiment includes a first lens driving device and the first lens a second lens drive including a second surface opposed to the first surface of the drive; The actuator includes a housing; a bobbin disposed within the housing; and a a first coil; a magnet disposed in the housing and facing the first coil; a base disposed under the housing; a second coil facing the magnet; a substrate disposed on the base; a substrate disposed above the bobbin and connected to the bobbin and the housing; an upper elastic member coupled to the substrate; and a support member coupled to the upper elastic member and the substrate, The magnet is disposed on a side of the housing, and the upper surface of the magnet is a first portion that overlaps with the elastic member in the optical axis direction and does not overlap with the housing in the optical axis direction; It can include.

[0041] The upper surface of the magnet overlaps with the housing in the optical axis direction. a second portion of the upper surface of the magnet that does not overlap with the material in the optical axis direction; An upper plate of the housing may be disposed on the side.

[0042] A first portion of the upper surface of the magnet may contact the upper resilient member.

[0043] The dual camera module includes a first lens driving device coupled to the base. The housing further includes a cover for receiving the housing therein, and the cover is attached to a top plate of the housing. A stopper protruding toward the top plate of the holder can be provided.

[0044] The housing includes a first side portion disposed on a first surface side of the first lens driving device, and a second side portion disposed on the opposite side of the first side portion; and a second side portion disposed between the first side portion and the second side portion. and a third side and a fourth side disposed opposite each other and including a magnet. a first magnet disposed on a second side of the housing; and a second magnet disposed on a third side of the housing. a second magnet disposed on a fourth side of the housing; and a third magnet disposed on a fourth side of the housing. can be done.

[0045] A dummy member having a mass corresponding to the first magnet is provided on a first side of the housing. It can be arranged.

[0046] The upper plate of the housing is disposed on each of the second side, the third side, and the fourth side. and may not be disposed on the first side.

[0047] The lens driving device according to the present embodiment includes a housing; a bobbin disposed in the housing; a first coil disposed on the bobbin; a second coil disposed in the housing; a base disposed under the housing; a substrate disposed on the base and including a second coil; an upper elastic member coupled to the bin and to the housing; and an upper elastic member coupled to the base. The magnet is disposed on a side of the housing, and the magnet is supported by a support member. The upper surface of the net is disposed in the same plane as the upper surface of the housing to which the upper elastic member is joined. It can be done.

[0048] The dual camera module according to the present embodiment includes a first lens driving device and the first lens a second lens drive including a second surface opposed to the first surface of the drive; The actuator includes a housing; a bobbin disposed within the housing; and a a first coil; a magnet disposed in the housing and facing the first coil; a base disposed under the housing; and a second coil facing the magnet. a substrate disposed on the base, the housing being configured to have a first surface of the first lens driving device a first side portion disposed on the opposite side of the first side portion; a second side portion disposed on the opposite side of the first side portion; and a third side portion and a fourth side portion disposed between the first side portion and the second side portion and disposed on opposite sides of each other. The magnets include a first magnet disposed on a second side of the housing; A second magnet disposed on a third side of the housing and a fourth magnet disposed on a fourth side of the housing. The second coil includes a third magnet facing the first magnet. a second coil unit facing the second magnet; and a third magnet. a third coil unit facing the first coil unit, The number may be greater than the number of turns of the coil in the second coil unit.

[0049] A dummy member including a non-magnetic material may be disposed on the first side of the housing. .

[0050] The number of times the coil is wound in the third coil unit is equal to the number of times the coil is wound in the second coil unit. can correspond to the number of times the wire is wound.

[0051] The central axis of the bobbin is in a direction from the central axis of the first lens driving device to the dummy member. The eccentric arrangement may be such that the eccentric arrangement is substantially eccentric to the center of the axial direction.

[0052] The substrate includes a through hole corresponding to a lens coupled to the bobbin, and the through hole The lens may be disposed eccentrically on the first surface side of the first lens driving device.

[0053] The substrate has a through hole, an inner peripheral surface formed by the through hole, and the housing. a first side surface disposed on a first side of the housing; and a second side surface disposed on a second side of the housing. and a second side surface of the substrate, and the first coil unit is disposed between the inner peripheral surface of the substrate and the second side surface of the substrate. The second coil is disposed between the inner peripheral surface of the substrate and the first side surface of the substrate. may not be placed.

[0054] The substrate has a first side surface disposed on a first surface side of the first lens driving device, and a second side surface disposed on the opposite side of the first side surface; and a second side surface disposed between the first side surface and the second side surface. and a third side and a fourth side disposed on opposite sides of the first side and the second side. may be greater than the distance between the first side and the second side.

[0055] The second coil includes a first coil unit facing the first magnet and a second magnet. A second coil unit facing the magnet and a third coil unit facing the third magnet. The length of the first coil unit in the longitudinal direction is equal to or larger than that of the second coil unit. It may be longer than the longitudinal extent of each of the third coil units.

[0056] The second lens driving device includes a housing; and the housing of the second lens driving device includes a housing. a bobbin disposed on the second lens driving device; a first coil disposed on the bobbin of the second lens driving device; A lens driving device is disposed in the housing of the lens driving device and faces the first coil of the second lens driving device. a magnet; a base disposed under a housing of the second lens driving device; and a second coil facing the magnet of the second lens driving device; The second lens driving device includes a substrate disposed on a base, and a magnet of the second lens driving device is disposed on the second lens. Four corners are disposed between the four sides of the housing of the drive device. The magnet may include a center magnet.

[0057] The lens driving device according to the present embodiment includes a housing; a bobbin disposed in the housing; a first coil disposed on the bobbin; a second coil disposed in the housing; A magnet and a dummy member facing each other; a base disposed under the housing; and the a substrate including a second coil facing the magnet and disposed on the base; The guide comprises a first side and a second side disposed opposite the first side, and a gap between the first side and the second side. and a third side and a fourth side disposed between the first and second sides and opposite to each other, The dummy member is disposed on a first side of the housing, and the magnet is disposed on the first side of the housing. a first magnet disposed on a second side of the housing; and a second magnet disposed on a third side of the housing. a second magnet and a third magnet disposed on a fourth side of the housing; The central axis of the bobbin is disposed eccentrically on the dummy member from the central axis of the housing. It is possible. Effect of the Invention

[0058] This embodiment minimizes mutual interference between magnets in the dual OIS lens drive structure. It can be made into a

[0059] Furthermore, the above-mentioned structure ensures the magnetic force required for AF drive. [Brief description of the drawings]

[0060] [Figure 1] FIG. 1 is a perspective view illustrating a dual camera module according to an embodiment of the present invention. [Diagram 2] 2 is a perspective view illustrating a state in which the covers of a first lens driving device and a second lens driving device according to the embodiment are removed. FIG. [Diagram 3] 2 is a perspective view illustrating the arrangement of magnets, coils, and dummy members of each of a first lens driving device and a second lens driving device according to the present embodiment. FIG. [Figure 4] FIG. 2 is an exploded perspective view of a first lens driving device according to the present embodiment. [Diagram 5] 2 is an exploded perspective view of a first mover of the first lens driving device in the present embodiment. FIG. [Figure 6] 4 is an exploded perspective view of a second mover of the first lens driving device in the present embodiment. FIG. [Figure 7] 4 is an exploded perspective view of a stator of the first lens driving device in the present embodiment. FIG. [Figure 8] 4 is an exploded perspective view of an elastic member of the first lens driving device according to the present embodiment. FIG. [Figure 9] 2 is a cross-sectional view of a first lens driving device according to the present embodiment. FIG. [Figure 10] 2 is a cross-sectional view of a portion of a first lens driving device according to the present embodiment. FIG. [Figure 11] 2 is a plan view of a portion of the first lens driving device in the present embodiment. FIG. [Figure 12] FIG. 2 is an exploded perspective view of a second lens driving device according to the present embodiment. [Figure 13] 11 is a diagram illustrating the magnetic field distribution of a magnet in a dual camera module according to a comparative example. FIG. [Figure 14] 1 is a diagram illustrating the magnetic field distribution of a magnet of a dual camera module according to an embodiment of the present invention. [Figure 15] FIG. 1 is a perspective view of an optical device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0061] For the sake of convenience, some embodiments of the present invention will be described below with reference to the accompanying drawings. However, the technical concept of the present invention is not limited to the embodiments described below.

[0062] Further, in describing the components of the embodiment of the present invention, first, second, A, B, (a) , (b) etc. can be used. Such terms separate the component from another component. The term is used to distinguish the essence, order or sequence of the relevant components. However, there is no limitation.

[0063] When an element is described as being 'linked' or 'bonded' to another element, An element may be directly connected or bonded to another element, but the element may be Another component may be 'linked' or 'bonded' between the element and the other component. It must be understood.

[0064] The 'optical axis direction' used below is defined as the optical axis direction of the lens coupled to the lens drive unit. On the other hand, the 'optical axis direction' can correspond to the 'up and down direction', 'z-axis direction', etc.

[0065] The term 'autofocus' used below refers to the function of capturing a clear image of the subject on the image sensor. The lens is moved along the optical axis according to the distance of the subject so that an image can be obtained from the image sensor. It is defined as a function that automatically adjusts the focus on the subject by adjusting the distance from the camera. On the other hand, 'autofocus' is often confused with 'AF (Auto Focus)'. can be done.

[0066] The term "image stabilization" used below refers to the correction of vibrations that occur on the image sensor due to external forces. A mechanism for moving or tilting the lens in the direction perpendicular to the optical axis to offset the movement of the lens. On the other hand, 'image stabilization' is defined as 'OIS (Optical Image Stabilization)'. It is sometimes confused with 'tabilization'.

[0067] The configuration of the optical device according to this embodiment will be described below with reference to the drawings.

[0068] FIG. 15 is a perspective view of the optical device according to the present embodiment.

[0069] Optical devices are used in mobile phones, smart phones, and portable smart Equipment, digital cameras, laptop computers , digital broadcasting terminals, PDAs (Personal Digital Assistants) ts), PMP (Portable Multimedia Player) and Navigation However, the type of optical equipment is not limited to this and may be either a video or photo equipment. Any device for photographing objects can also be referred to as an optical instrument.

[0070] The optical instrument may include a body 1. The body 1 may form the exterior of the optical instrument. The main body 1 can accommodate a camera module 3. One side of the main body 1 has a display. For example, the display unit 2 and the display unit 3 may be disposed on one side of the main body 1. A camera module 3 is disposed on the other side of the main body 1 (the side opposite to the first side). Module 3 can be additionally arranged.

[0071] The optical device may include a display unit 2. The display unit 2 is a part of the main body 1. The display unit 2 can be arranged on a surface of the screen. The image can be output.

[0072] The optical device may include a camera module 3. The camera module 3 may be mounted on the main body 1. The camera module 3 can be arranged at least partially inside the main body 1. The camera module 3 may be provided in a plurality of cameras. The modules 3 can be disposed on one side of the main body 1 and on the other side of the main body 1. The camera module 3 can capture an image of a subject. The camera module 3 may be a dual camera module.

[0073] The configuration of the dual camera module according to this embodiment will be described below with reference to the drawings. .

[0074] FIG. 1 is a perspective view illustrating a dual camera module according to the present embodiment.

[0075] The dual camera module includes a first camera module and a second camera module. The dual camera module includes a first lens driving device 1000 and a second lens driving device 1010. The first camera module may include a first lens driving device 2000. The second camera module may include a second lens driving device 2000. In this embodiment, each of the first and second lens driving devices 1000 and 2000 includes In this embodiment, the autofocus function and / or the image stabilization function can be performed. In the embodiment, the first and second lens driving devices 1000 and 2000 are 'OIS modules (Opt Optical Image Stabilization Module', 'OIS Active It can be a 'flash adjuster' or 'AF actuator'. Dual Camera Module The first lens driving device 1000 includes a first surface, and the second lens driving device includes a second surface opposite to the first surface. The first surface may include a first lens driving device 2000. The second surface is the surface of the cover 1100 of the second lens driving device 2000 described later. The dual camera module may be mounted on one side of the cover 2100. The lens driving device may include first and second lens driving devices 1000 and 2000 arranged side by side. In another embodiment, the printed circuit board 11 is separate and the first lens is mounted on the first printed circuit board. The driving device 1000 is disposed on a second printed circuit board, and a second lens driving device 2000 is disposed on the second printed circuit board. It may be arranged.

[0076] The dual camera module may include a lens module. The lens module may include at least one lens. The lens module may include a first lens actuator 1000. A first lens module and a second lens module coupled to the second lens driving device 2000. The first lens module may include a bobbin 1 of the first lens driving device 1000. The first lens module can be connected to the bobbin 1210 by threaded connection and The first lens module can be attached to the bobbin 12 by means of a magnet and / or adhesive. The second lens module can move together with the second lens driving device 20. The second lens module can be coupled to the bobbin 2210 of the 1.00. 0 by means of a screw connection and / or adhesive. can move together with the bobbin 1210.

[0077] The dual camera module may include a filter. The filter may include an infrared The infrared filter can be used to filter out infrared light from the image sensor. The infrared filter can block the light from entering the lens module. The infrared filter may be disposed between the first lens and the image sensor. A first infrared filter disposed below the lens coupled to the device 1000 and a second lens Including a second infrared filter disposed below the lens coupled to the drive unit 2000. For example, an infrared filter can be placed on the sensor base 12, 13. As another example, an infrared filter can be disposed in the base 1430, 2430. This can be done.

[0078] The dual camera module may include a printed circuit board 11. A first lens driving device 1000 and a second lens driving device 2000 are disposed on the substrate 11. At this time, between the printed circuit board 11 and the first lens driving device 1000 The first sensor base 12 may be disposed on the printed circuit board 11. A second sensor base 13 may be disposed between the second lens driving device 2000. The printed circuit board 11 is electrically connected to the first and second lens driving devices 1000 and 2000. The printed circuit board 11 may be connected to an image sensor. The printed circuit board 11 can be electrically connected to the image sensor. do.

[0079] The dual camera module may include an image sensor. The image sensor can be disposed on a printed circuit board 11. The image sensor may be electrically connected to the circuit board 11. For example, the image sensor may be a printed circuit board. Surface Mounting Technology (SMT) on the circuit board 11 As another example, the image sensor can be coupled to a printer. The semiconductor device can be bonded to the circuit board 11 by flip chip technology. The image sensor is disposed below the lens coupled to the first lens driving device 1000. The first image sensor is connected to the second lens driving device 2000. The image sensor may include a second image sensor disposed on the first substrate. The axes can be aligned so that the optical axis of the image sensor and the lens The optical axis of the image sensor can be aligned. The light that falls on the effective image area of ​​the image sensor can be converted into an electrical signal. The sensor is a CCD (charge coupled device). , MOS(metal oxide semi-conductor, metal oxide semiconductor ), CPD and CID.

[0080] The dual camera module may include a controller. The controller may include a printed circuit board. The control unit may be disposed on the plate 11. The control unit may be a first coil of the first lens driving device 1000. The direction, strength, and amplitude of the current supplied to the first coil 1220 and the second coil 1422 are individually controlled. The control unit can control the first coil 2220 of the second lens driving device 2000 and The direction, strength, and amplitude of the current supplied to the second coil 2422 can be individually controlled. The control unit controls the first and second lens driving devices 1000 and 2000 to perform automatic focusing. The control unit can perform a focus function and / or an image stabilization function. and autofocus feedback control for the second lens driving device 1000, 2000 And / or image stabilization feedback control can be performed.

[0081] The configuration of the first lens driving device will be described below with reference to the drawings.

[0082] FIG. 2 shows the covers of the first lens driving device and the second lens driving device according to the present embodiment. FIG. 3 is a perspective view illustrating a state in which the first lens driving device and the second lens driving device according to this embodiment are removed. FIG. 1 is a perspective view illustrating the arrangement of magnets, coils, and dummy members of a lens driving device; FIG. 4 is an exploded perspective view of the first lens driving device according to this embodiment, and FIG. FIG. 6 is an exploded perspective view of a first movable element of the first lens driving device according to the present embodiment. FIG. 7 is an exploded perspective view of a second movable element of the first lens driving device according to the present embodiment. FIG. 8 is an exploded perspective view of a stator, and is an exploded perspective view of an elastic member of the first lens driving device according to the present embodiment. 9 is a cross-sectional view of the first lens driving device according to this embodiment, and FIG. 10 is a cross-sectional view of the first lens driving device according to this embodiment. FIG. 11 is a cross-sectional view of a part of the first lens driving device according to the present embodiment. FIG. 13 is a plan view of a part of the device, and FIG. 14 is a plan view of a magnet of the dual camera module according to the comparative example. FIG. 14 is a diagram illustrating a magnetic field distribution of the dual camera module according to the present embodiment. FIG. 1 is a diagram illustrating the magnetic field distribution of a net.

[0083] The first lens driving device 1000 includes a voice coil motor (Vcm, Furthermore, the first lens driving device 1000 may be an OIS. It can be OIS for Dual OIS.

[0084] The first lens driving device 1000 may include a cover 1100. The cover 1100 can be coupled to the base 1430. The cover 1100 can be placed inside the first lens driving device 1000. The cover 1100 may be a hexahedron with an open bottom. The bar 1100 may be made of a non-magnetic material. The cover 1100 may be made of a metal material. The cover 1100 can be made of a metal plate. The cover 11 can be connected to the ground portion of the printed circuit board 11. 00 can be grounded. The cover 1100 is a protection against electromagnetic interference (EMI, It is possible to block ectro magnetic interference. At this time, the cover 1100 can be called an 'EMI shielding can'.

[0085] The cover 1100 may include a top plate 1110 and a side plate 1120. 0 is the upper plate 1110 and the outer periphery of the upper plate 1110 or The cover 1100 may include a side panel 1120 extending downward from an edge. The lower end of the side plate 1120 can be disposed on a step portion 1434 of the base 1430 . The inner surface of the side plate 1120 of the cover 1100 is bonded to the base 1430 by adhesive. can be done.

[0086] The top plate 1110 of the cover 1100 may include a hole 1111. 1 may be formed in the top plate 1110 of the cover 1100. The hole 1111 may be The hole 1111 is of a size and shape corresponding to the lens. The size of the hole 1111 is determined so that the lens module can be formed in the hole. The shape is larger than the diameter of the lens module so that it can be inserted and assembled through 1111. The light that flows in through the hole 1111 can pass through the lens. At this time, the light that passes through the lens is converted into an electrical signal by the image sensor and then captured. can be obtained in the image.

[0087] The first lens driving device 1000 can include a first mover 1200. The first movable element 1200 can be coupled to a lens. The first movable element 1200 includes an elastic member 1500. The first movable element 1200 can be coupled to the second movable element 1300 via the second movable element 1300. The first movable element 1200 can move by interacting with the first movable element 1300. The first movable element 1200 can move together with the lens. In this case, the first movable element 1200 can be called an 'AF movable element'. However, the first movable element 1200 can also move when the OIS is driven.

[0088] The first movable element 1200 can include a bobbin 1210. The bobbin 1210 can include a housing. The bobbin 1210 may be disposed within or inside the housing 1310. The bobbin 1210 can be placed in a hole 1311 of a housing 1310. The bobbin 1210 can be movably coupled to the housing 1310. The bobbin 1210 can be coupled with a lens. The bobbin 1210 and the lens can be joined by threads and / or adhesive. A first coil 1220 can be coupled to the bobbin 1210. An upper elastic member 1510 may be attached to the upper portion or upper surface of the bobbin 121. A lower elastic member 1520 may be coupled to the lower portion or the lower surface of the bobbin 1210. The elastic member 1500 may be bonded to the elastic member 1500 by heat sealing and / or adhesive. The adhesive that bonds the bobbin 1210 to the lens, and the bobbin 1210 to the elastic member 1500 is ultraviolet resistant. Epoxy (ep) cured by one or more of UV, heat and laser. oxy).

[0089] The bobbin 1210 may include a hole 1211. The hole 1211 may be 210 can be inserted in the optical axis direction. The hole 1211 accommodates a lens module. For example, the inner circumferential surface of the bobbin 1210 on which the hole 1211 is formed is A thread corresponding to the thread formed on the outer circumferential surface of the screw module may be formed.

[0090] The bobbin 1210 may include a protrusion 1212. The protrusion 1212 may be The protrusion 1212 protrudes from the side of the bobbin 1210. The first coil 1220 may be wound around the protrusion 1212. As a comparative example, a first coil 1220 that is already wound on the protrusion 1212 is coupled to the protrusion 1212. The protrusion 1212 may include a first protrusion 1212 and a second protrusion. The bobbin 1210 includes a first protrusion 1212 disposed on a first side of the bobbin 1210 and a bobbin The second protrusion may be disposed on a second side of the first protrusion 1210 that is disposed opposite the first side of the first protrusion 1210. Each of the first protrusion 1212 and the second protrusion may be provided separately as two protrusions. As a comparative example, the first protrusion 1212 and the second protrusion are not separated but are formed integrally. A first coil unit 1221 can be wound around the first protrusion 1212. A second coil unit 1222 may be wound around the second protrusion.

[0091] The first mover 1200 may include a first coil 1220. The first coil 1220 can be disposed on the bobbin 1210. and the housing 1310. The first coil 1220 may be disposed between the bobbin The first coil 1220 may be disposed on the outer circumferential surface of the bobbin 1210. The first coil 1220 faces the magnet 1320. The first coil 1220 can electromagnetically interact with the magnet 1320. In this case, a current is supplied to the first coil 1220, and a current is generated around the first coil 1220. When the magnetic field is generated, the electromagnetic interaction between the first coil 1220 and the magnet 1320 The action allows the first coil 1220 to move relative to the magnet 1320 . The first coil 1220 may be a single coil formed integrally.

[0092] The first coil 1220 may include both ends for power supply. One end (lead line) of the coil 1220 is coupled to the first upper elastic unit 1510a. The other end (lead line) of the coil 1220 is coupled to the second upper elastic unit 1510b. That is, the first coil 1220 is electrically connected to the upper elastic member 1510. More specifically, the first coil 1220 is sequentially mounted on the printed circuit board 11, 1410, the support member 1600 and the upper elastic member 1510 are supplied with power. In a modified example, the first coil 1220 is electrically connected to the lower elastic member 1520. It is possible.

[0093] The first coil 1220 includes a first coil unit 1221 and a second coil unit 1222 which are spaced apart from each other. The first coil 1220 is connected to the second magnet unit 1222. The first coil unit 1221 faces the third magnet unit 1323. The first coil unit 1221 and the second coil unit 1222 may be arranged to face each other. The second coil units 1222 are disposed on opposite sides of the outer surface of the bobbin 1210 at a distance from each other. The first coil unit 1221 can be formed by connecting the upper and lower surfaces of the first protrusion 1212. The first coil unit 1221 can be wound around the first protrusion 1212 so as to cover the first protrusion 1212. The second coil unit 1222 may be inserted into the first protrusion 1212. The second coil unit 1222 may be inserted into the second protrusion. The first coil unit 1 may be wound around the second protrusion so as to cover the upper and lower surfaces of the protrusion. The second coil unit 1221 and the second coil unit 1222 may be referred to as a 'glasses coil'. The first coil unit 1221 and the second coil unit 1222 are elliptical and track-shaped. The shape may be at least one of a rectangular shape, a closed curve shape, or a rectangular shape.

[0094] The first coil 1220 faces the first magnet unit 1321 of the magnet 1320. More specifically, the first coil 1220 may not be able to rotate around the magnet 132. 0 and the second magnet unit 1322 and the third magnet unit 1323. However, the second magnet unit 1321 may not be able to face the first magnet unit 1321. The first coil unit 1221 is disposed so as to face the magnet unit 1322. The second coil unit 1222 is disposed so as to face the third magnet unit 1323. However, the first magnet unit 1321 is configured to face the first coil 1220. may not be placed.

[0095] The first coil 1220 includes a first coil unit 1221 and a second coil unit 1222. The first coil 1220 may include a connecting portion (not shown) for electrically connecting the first coil 1220. The first coil 1220 may be a connected coil (not shown). One end of the second coil unit 1221 and one end of the second coil unit 1222 are connected to each other. The connection portion of the first coil 1220 is connected to the first coil unit 1221 and the second coil unit 1222. The connection portion of the first coil 1220 may be disposed between the first coil 1222 and the first The first coil 1220 may be opposed to the magnet unit 1321. The connecting portion of the first coil 1220 may face the dummy member 1330. The dummy member is disposed between the first magnet unit 1321 and the bobbin 1210. 1330 and the bobbin 1210.

[0096] In this embodiment, between the first coil unit 1221 and the second magnet unit 1322 Distance and / or distance between the second coil unit 1222 and the third magnet unit 1323 The distance between the bobbin 1210 and the wire 1220 (see L1 in FIG. 11) may be 60 μm to 150 μm. The distance between the first magnet unit 1321 (see L2 in FIG. 11) is 60 μm to 2 00 μm.

[0097] The first lens driving device 1000 may include a second movable element 1300. 1300 can be movably coupled to the stator 1400 via a support member 1600. The second movable element 1300 supports the first movable element 1200 via an elastic member 1500. The second movable element 1300 can move the first movable element 1200 and The second mover 1300 can move together with the stator 1400. The second movable element 1300 can be moved when the OIS is driven. In this case, the second movable element 1300 can be called an 'OIS movable element'. The second movable element 1300 can move integrally with the first movable element 1200 when the OIS is driven.

[0098] The second mover 1300 may include a housing 1310. The housing 1310 may be disposed on the outside of the bobbin 1210. The housing 1310 can accommodate at least a portion of the bobbin 1210 therein. The housing 1310 can be disposed inside the cover 1100. The housing 1310 may be disposed between the bar 1100 and the bobbin 1210. The housing 1310 may be made of a different material than the cover 1100. The housing 1310 may be formed by injection molding. The outer side of the housing 1310 is spaced apart from the inner surface of the side plate 1120 of the cover 1100. The housing 1310 and the cover 1100 are connected to each other through a space between them. The housing 1310 can move to drive the OIS. The housing 1310 and the magnet 1320 may be disposed. The upper portion or top surface of the housing 1310 may include a The housing 1310 may have an upper or lower elastic member 1510. The lower elastic member 1520 may be coupled to the housing 1310. 0 by heat sealing and / or adhesive. The magnet 1320 and the adhesive that bonds the housing 1310 and the elastic member 1500 are ultraviolet resistant. Epoxy (ep) cured by one or more of UV, heat and laser. oxy).

[0099] The housing 1310 includes four sides and four corners disposed between the four sides. The housing 1310 is disposed on the first surface side of the first lens driving device 1000. a first side portion disposed opposite the first side portion; a second side portion disposed on the opposite side of the first side portion; and a gap between the first side portion and the second side portion. The housing may include a third side and a fourth side disposed opposite each other. The first side of the ring 1310 is disposed on the first surface side of the first lens driving device 1000. The housing 1310 can include four sides, and the four sides can be separated from one another. For example, the front side may be arbitrarily referred to as the 'first side' to the 'fourth side'. Unlike the above description, the second side portion is disposed on the first surface side of the first lens driving device 1000. This can be done.

[0100] The housing 1310 may include a hole 1311. The hole 1311 may The hole 1311 can be formed in the housing 1310 to allow the housing 1310 to be exposed to light. The bobbin 1210 is disposed in the hole 1311. The hole 1311 may have a shape that corresponds at least in part to the bobbin 1210. The inner circumferential surface of the housing 1310 forming the hole 1311 may be formed in a shape of 1210. However, the housing 131 may be located apart from the outer circumferential surface of the bobbin 1210. 0 and the bobbin 1210 are at least partially overlapped in the optical axis direction. The stroke distance of the movement can be limited.

[0101] The housing 1310 can include a magnetic coupling portion 1312. A magnet 1320 can be coupled to the coupling portion 1312. 2 is a receiving groove formed by recessing a part of the inner circumferential surface and / or the bottom surface of the housing 1310; The magnetic coupling portion 1312 is provided on each of the four sides of the housing 1310. In a modified example, the magnetic coupling portion 1312 may be formed on the housing 1. 310. A recess 316 may be formed at each of the four corners of the recess 310.

[0102] The housing 1310 may include a top plate 1313. The housing 1310 may include a The magnet 1320 may include an upper 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 on a portion of the upper surface of the cover 1100. A stopper 1314 protruding toward the upper plate 1110 may be disposed. 313 can be formed integrally with the housing 1310. The stopper 1314 is , may be formed integrally with the upper plate 1313. The upper plate 1313 may be formed integrally with the housing 1310. That is, the three upper plates can be disposed on the second side, the third side, and the fourth side of the upper plate. 1313 may be disposed in the housing 1310. The upper plate 1313 may be a dummy member. The first side of the housing 1310 on which the housing 1330 is disposed may not be located. The top plate 1313 of the housing 1310 defines a second side, a third side, and a fourth side of the housing 1310. 13 and not on the first side of the housing 1310. The dummy member 1330 disposed on the first side of the housing 1310 has a housing In other words, the housing 1310 may not have a top plate 1313 disposed thereon. It may be asymmetric with respect to the central axis of the lens coupled to the bobbin 1210 .

[0103] The housing 1310 may include a stopper 1314. The stopper 1314 can be disposed on the upper plate 1313. The stoppers 1314 are provided in pairs for each upper plate 1313. In other words, a total of six stoppers 1314 are arranged on the housing 1310. Two stoppers 1314 are disposed at both ends of the upper plate 1313. The upper surface of the stopper 1314 forms the upper end of the housing 1310. The stopper 1314 overlaps with the upper plate 1110 of the cover 1100 in the optical axis direction. In other words, if the housing 1310 continues to move upward, the stopper 13 The upper surface of the stopper 14 comes into contact with the upper plate 1110 of the cover 1100. 1314 can limit the distance the housing 1310 can move upward.

[0104] The second mover 1300 may include a magnet 1320. The magnet 1320 can be disposed in the housing 1310. The magnet 1320 can be fixed to the bobbin 12 by adhesive. The magnet 1320 may be disposed between the first and second electrodes 1310. The magnet 1320 can face the first coil 1220. The magnet 1320 is coupled to the second coil 1422. The magnet 1320 can be oriented in a direction that electromagnetically interacts with the second coil 1422. The magnet 1320 can be used for both AF drive and OIS drive. The magnet 1320 can be disposed on the side of the housing 1310. At this time, the magnet 1320 is a flat plate magnet. In a variant, the magnet 1320 may be disposed at a corner of the housing 1310. At this time, the magnet 1320 is a hexagon with an inner side wider than an outer side. It may be a corner magnet having a planar shape.

[0105] In this embodiment, the upper surface of the magnet 1320 overlaps with the upper elastic member 1510 in the optical axis direction. The first portion of the top surface of the magnet 1320 may be disposed on the housing 13. 10 in the optical axis direction. The first portion of the upper surface of the magnet 1320 is The elastic member 1510 can be exposed from the housing 1310 so as to face the elastic member 1510. A first portion of the upper surface of the net 1320 can be in contact with the upper elastic member 1510. The upper surface of the magnet 1320 includes a second portion that overlaps with the housing 1310 in the optical axis direction. The upper surface of the magnet 1320 is provided on the upper side of the second portion of the upper plate 1 of the housing 1310. A second portion of the top surface of the magnet 1320 may be disposed on the housing 1313. 1310 and the upper plate 1313 of the magnet 1320. The upper elastic member 1510 may not overlap with the magnet 1320 in the optical axis direction. The surface is a third portion that does not overlap the housing 1310 and the upper elastic member 1510 in the optical axis direction. That is, the upper surface of the magnet 1320 may be connected to the upper elastic member in the optical axis direction. a first portion overlapping with the upper plate 1313 of the housing 1310; A third portion that does not overlap the upper elastic member 1510 and the upper plate 1313 of the housing 1310 A third part may be included, but the third part may be absent.

[0106] In this embodiment, the upper surface of the magnet 1320 is a housing to which the upper elastic member 1510 is attached. 1310. For this structure, the present embodiment In the example, a part of the housing 1310 may be omitted. A part of the housing 1310 is omitted and an upper elastic member 1510 is disposed in the corresponding part. A part of the upper surface of the magnet 1320 is connected to the upper elastic member 1510. Further, another part of the upper surface of the magnet 1320 can be in contact with the housing 1. 310 and upper plate 1313 of the same.

[0107] The magnet 1320 may include a plurality of magnets spaced apart from each other. The magnet 1320 may include three magnets spaced apart from each other. 20 may include first to third magnet units 1321, 1322, and 1323. The magnet 1320 is a first magnet disposed on the second side of the housing 1310. a second magnet unit 1321 disposed on a third side of the housing 1310; and a third magnet unit 1322 disposed on the fourth side of the housing 1310. The first magnet unit 1321 may include a second coil 1422. The second magnet unit 132 can face the first coil unit 1422a. 2 is a second coil 1422 facing the first coil unit 1221 of the first coil 1220. The third magnet unit 13 can face the second coil unit 1422b. 23 is a second coil 142 that faces the second coil unit 1222 of the first coil 1220. The second magnet unit 1422c can face the third coil unit 1422c of the second magnet unit 1422. The third 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 are The magnet unit 1323 moves the housing 1310 in a direction perpendicular to the optical axis direction. This can be done.

[0108] The first magnet unit 1321 is a 2-pole magnet. In this embodiment, the second magnet unit 1322 and the third magnet unit 132 3 can be a 4-pole magnet. A 2-pole magnet is The four-pole magnet may be a four-pole magnet. As a result, the magnet 1320 of the first lens driving device 1000 and the magnet 1320 of the second lens driving device The magnetic field interference between the magnet 2320 and the magnet 2000 can be reduced. The second magnet unit 1322 and the third magnet unit 1323 are two-pole magnets. The magnetic field distribution of the comparative example is shown in FIG. The field distribution is shown in FIG. 14. Comparing FIG. 14 with FIG. 13, the first lens driving device The magnet 1320 of the first lens driving device 1000 and the magnet 2320 of the second lens driving device 2000 It can be seen that the magnetic field interference between the two devices is reduced or eliminated.

[0109] Each of the second magnet unit 1322 and the third magnet unit 1323 has a first The first surface may include a first surface facing the coil 1220. The first surface may be disposed horizontally at the center. The neutral section 1324 is a neutral region and does not include a pole. The first surface may have different poles at the top and bottom based on the neutral part 1324. In other words, the upper side of the neutral part 1324 has a south pole, and the lower side of the neutral part 1324 has a north pole. In a variant, the upper side of the neutral section 1324 can have a north pole, and the neutral section 1324 The lower side of the neutral part 1324 can have a south pole. The vertical length of the neutral part 1324 (see L in FIG. 10) is 0. It can be between 1 mm and 0.5 mm.

[0110] Each of the first to third magnet units 1321, 1322, and 1323 includes a second coil It may include a second surface facing 1422 and a third surface disposed opposite the second surface. The second surface is an inner surface on the center side of the first lens driving device 1000, and the third surface is an inner surface on the center side of the first lens driving device 1000. The first to third magnet units 1321, 1322, The second and third faces of each 1323 can have different poles. That is, the second face is a north pole. In a variant, the second face can have a south pole and the third face can have a south pole. can have a north pole.

[0111] The second mover 1300 may include a dummy member 1330. A dummy member 1330 may be disposed on the first side of the dummy member 1330. The dummy member 1330 may include The dummy member 1330 may include a non-magnetic material. The dummy member 1330 can have a mass corresponding to the first one for weight balance. It can be arranged at a position corresponding to the magnet unit 1321. The magnetic strength of the member 1330 is weaker than the magnetic strength of the first magnet unit 1321. The dummy member 1330 has its center of gravity on the opposite side of the first magnet unit 1321. The dummy member 1330 may be made of a non-magnetic material. The dummy member 1330 can be made of 95% or more tungsten. The dummy member 1330 may be a tungsten alloy. For example, the specific gravity of the dummy member 1330 is The dummy member 1330 may have an upper surface entirely separated from the housing 1310. That is, the upper surface of the dummy member 1330 can be exposed from the housing 1310. The dummy member 1330 may overlap or not be supported in the optical axis direction. The upper plate 1313 of the dummy member 1330 and the substrate 1410 may not be placed. The second coil 1422 may not be disposed between them.

[0112] The dummy member 1330 may include a shape for assembly to the housing 1310. The dummy member 1330 may include protrusions protruding from both sides. 1330 may include a shape for avoiding interference with adjacent operating parts. The member 1330 may include a groove formed where the top surface and the inner surface meet. The horizontal length of the outer surface of 330 is the same as the length of the first magnet unit 1321 in the corresponding direction. The thickness of the dummy member 1330 may be shorter than the thickness of the first magnet unit 1321. Alternatively, the thickness of the dummy member 1330 may correspond to the thickness of the first magnet. The thickness of the dummy member 1330 may be larger or smaller than that of the unit 1321. The shape of the first magnet unit 1321 may be different from that of the dummy member 13. The shape of the dummy magnet unit 30 can correspond to the shape of the first magnet unit 1321. The member 1330 can be disposed at the same height as the first magnet unit 1321. Alternatively, the dummy member 1330 is higher or lower than the first magnet unit 1321. The upper end of the dummy member 1330 is located at a position lower than the first magnet unit 1. 321. Alternatively, the upper end of the dummy member 1330 may be disposed at the same height as the upper end of the dummy member 1330. can be positioned higher or lower than the top end of the first magnet unit 1321. The lower end of the dummy member 1330 corresponds to the lower end of the first magnet unit 1321. Alternatively, the lower end of the dummy member 1330 may be disposed at the height of the first magnet. It can be placed higher or lower than the bottom end of the unit 1321. In this way, the dummy member 1330 is in contact with the magnet 1320 of the first lens driving device 1000 and the second lens driving device 1010. The dummy magnet 2320 may be disposed between the magnet 2320 and the lens driving device 2000. The horizontal length of the first magnet unit 1321 is equal to or greater than the horizontal length of the first magnet unit 1321. The longitudinal length of the dummy member 1330 may be shorter or longer than the first magnet. It may be the same as, shorter or longer than the lateral length of the net unit 1321 .

[0113] The first lens driving device 1000 may include a stator 1400. may be disposed below the first and second movers 1200 and 1300. The stator 1400 can movably support the second mover 1300. The second movable element 1300 can be moved. At this time, the first movable element 1200 also moves in parallel with the second movable element 1300. It can move along with the child 1300.

[0114] The stator 1400 may include a substrate 1410. The substrate 1410 may include a magnet 1 320. Alternatively, the substrate 1410 may include a second coil 1422 that faces the substrate 1410. The magnet 1320 may include a circuit member 1420 including a second coil 1422 facing the magnet 1320. The substrate 1410 can be disposed on a base 1430. The substrate 1410 may be disposed between the housing 1310 and the base 1430. The support member 1600 can be coupled to the substrate 1410. The substrate 1410 can be connected to the second coil 1422. The substrate 1410 may be coupled to a circuit member 1420. The substrate 1410 can be coupled to the second coil 1422. The substrate 1410 can include a base The substrate 141 can be connected to the printed circuit board 11 disposed on the underside of the substrate 1430. 0 is a flexible printed circuit board (FPCB) The substrate 1410 may include a bent circuit board. It can be done.

[0115] The substrate 1410 may include a body portion 1411. The substrate 1410 may include a body portion 141 The substrate 1410 may include a hole 1411a formed in the bobbin 1210. The hole 1411a may include a lens that is adapted to be coupled to the In this embodiment, the first lens driving device 1000 is disposed on the first surface side of the first lens driving device 1000. In this case, the first coil unit 1422a is formed by eccentrically arranging the holes 1411a. The base 1430, the substrate 1410 and the circuit member 1420 for increasing the number of turns The hole 1411a of the substrate 1410 can secure one or more spaces. may be formed closer to one side of the substrate 1410. The one side surface may be adjacent to the dummy member 1330. The shortest distance from one side to the hole 1411a is may be greater than the shortest distance.

[0116] The substrate 1410 has a hole 1411a and an inner circumferential surface formed by the hole 1411a. A first side surface disposed on a first side of the housing 1310 and a second side of the housing 1310 The inner circumferential surface of the substrate 1410 and the second side surface of the substrate 1410 may be disposed on the inner circumferential surface of the substrate 1410. The distance between the inner circumferential surface of the substrate 1410 and the second side surface (see W4 in FIG. 7) is The distance between the inner periphery of the substrate 1410 and the first side surface (see W3 in FIG. 7) may be longer than the distance between the inner periphery of the substrate 1410 and the first side surface (see W4 in FIG. 7). A first coil unit 1422a may be disposed between the second side of the plate 1410. A second coil 1422 is disposed between the inner peripheral surface of the substrate 1410 and the first side surface of the substrate 1410. may not be placed.

[0117] The substrate 1410 has a first side surface disposed on the first surface side of the first lens driving device 1000 and a second side surface disposed on the first surface side of the first lens driving device 1000. A second side is disposed on the opposite side of the first side, and a second side is disposed between the first side and the second side. The third and fourth sides may be disposed on opposite sides. In this case, the third and fourth sides may be disposed on opposite sides. The distance between the first and second sides (see W2 in Fig. 7) is In this embodiment, the first coil unit 1422 may be longer than the first coil unit 1422 due to the above-mentioned structure. The length (L1) of the second coil unit 1422b and the third coil unit 1422c in the longitudinal direction is A space can be secured that is longer than the length in the hand direction (L2).

[0118] The substrate 1410 may include a terminal portion 1412. The terminal portion 1412 may be formed on the substrate 141 The terminal portion 1412 can extend from a main body portion 1411 of the substrate 1410. The terminal portion 1412 may be bent downward. The terminal portion 1412 can be exposed to the side of the base 1430. The terminals can be connected to the circuit board 11 by soldering. The child portion 1412 can be disposed in the terminal accommodating portion 1433 of the base 1430 .

[0119] The substrate 1410 can include a circuit member 1420. The stator 1400 can include a circuit member 1420. The circuit member 1420 may be disposed on a base 1430. The circuit member 1420 can be disposed on the substrate 1410. 0 can be disposed between the magnet 1320 and the base 1430, where: Although the circuit member 1420 is illustrated as being separate from the substrate 1410, the circuit member 1420 may be formed on the substrate. This can be understood as the structure included in plate 1410.

[0120] 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 a FPCB. The substrate portion 1421 may include a second coil. 1422 is a fine pattern coil (FP coil, Fine pattern coil The base plate 1421 may be integrally formed with the support member 1600. The substrate portion 1421 may have a hole 1421a formed therein. The hole 1421a of the substrate portion 1421 corresponds to the hole 1411a of the substrate 1410. The present invention can be adapted to suit the above-mentioned requirements.

[0121] The circuit member 1420 can include a second coil 1422. The second coil 1422 can include The second coil 1422 can face the magnet 1320. 20. In this case, a current is supplied to the second coil 1422. When a magnetic field is formed around the second coil 1422, the second coil 1422 and the magnet The magnet 1320 is rotated by the second coil 1422 due to electromagnetic interaction between the magnet 1320 and the second coil 1422. The second coil 1422 can move relative to the magnet 1320. The optical axis of the housing 1310 and the bobbin 1210 is aligned with the base 1430 by the optical interaction. The second coil 1422 is integral with the substrate portion 1421. Fine pattern coil (FP coil, Fine Pattern coil) ).

[0122] The second coil 1422 is a first coil unit that faces the first magnet unit 1321. The second coil unit 142a faces the second magnet unit 1322. 2b and a third coil unit 1422c facing the third magnet unit 1323. The number of times the coil is wound in the first coil unit 1422a is equal to the number of times the coil is wound in the second coil unit 1422b. The number of turns of the coil in the third coil unit 1422b may be greater than that in the third coil unit 1422a. The number of times the coil is wound in the second coil unit 1422c is the number of times the coil is wound in the second coil unit 1422b. In this embodiment, the X-axis movement during OIS driving is controlled by the first coil unit. The Y-axis direction movement is performed through the second coil unit 1422b and the third coil unit 1422a. This can be done via the coil unit 1422c. Therefore, in this embodiment, The number of turns of the first coil unit 1422a to replenish the insufficient thrust is set to be higher than the number of turns of the second coil unit 1422b and the third coil unit 1422c. For example, the number of turns of the first coil unit 1422a and the number of turns of the second coil unit The ratio of the number of turns of the first coil unit 1422b (or the third coil unit 1422c) is 1.5:2. This can be 0 to 1:1. This is to compensate for the absence of the coil 1422. The number of turns of the second coil unit 1422a and the number of turns of the second coil unit 1422b (or the third coil unit The ratio of the number of turns of the 1422c) can be arranged up to 1.5:2.0 due to spatial constraints. The length of the first coil unit 1422a in the longitudinal direction (see L1 in FIG. 7) is The longitudinal lengths of the second coil unit 1422b and the third coil unit 1422c ( The length of the first coil unit 1422a in the width direction (see L2 in FIG. 7) may be longer than the length of the first coil unit 1422a in the width direction ( 7) is the second coil unit 1422b and the third coil unit 1422c. It may be longer than the length in the width direction of each of them (see L4 in FIG. 7).

[0123] In this embodiment, the central axis of the lens coupled to the bobbin 1210 (see C1 in FIG. 9) is the first lens. The lens driving device 1000 is eccentric in the direction of the dummy member 1330 from the central axis (see C2 in FIG. 9). The central axis (C1) of the bobbin 1210 is aligned with the housing 1310. The dummy member 1330 may be disposed eccentrically from the central axis (C2) of the dummy member 1330. At this time, the center axis (C1) of the lens is the same as the center axis (C1) of the bobbin 1210 or the housing 1 The first lens driving device 310 may be aligned with the center axis of the hole 1311. The central axis (C2) of the housing 1310 and the central axis (C2) of the housing 1310 can be aligned. At this time, the central axis (C2) of the housing 1310 is aligned with the hole 1313 of the housing 1310. 11 may be the central axis when viewed from the outer periphery of the housing 1310. The hole 1411a is disposed eccentrically on the first surface side of the first lens driving device 1000. In this embodiment, the above-mentioned structure allows the first coil unit 1422a to be The length (L1) of the second and third coil units 1422b and 1422c in the longitudinal direction (L2) It is possible to secure space for a longer formation.

[0124] The stator 1400 may include a base 1430. The base 1430 may include a housing. The base 1430 may be disposed below the substrate 1410. The substrate 1410 can be placed on the upper surface of the base 1430. The base 1430 can be coupled to the cover 1100. The base 1430 can be The light emitting diode 14 may be disposed on the upper side of the main circuit board 11.

[0125] The base 1430 may include a hole 1431. The hole 1431 may The hole 1431 may be formed in the base 1430 in the optical axis direction. The light passing through the lens module through the hole 1431 can be formed as follows. That is, the light passing through the lens module can be incident on the image sensor. 14, the hole 1421a of the circuit member 1420, the hole 1411a of the substrate 1410, and the base The light can be incident on the image sensor through a hole 1431 in 1430 .

[0126] 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 accommodate at least a portion of the second sensor. The sensor coupling portion may include a groove formed by recessing the upper surface of the base 1430. 1432 may include two grooves, each of which may include a second sensor. The magnet 1320 is arranged to detect the X-axis and Y-axis movements. .

[0127] The base 1430 may include a terminal receiving portion 1433. The terminal receiving portion 1433 may include The terminal portion 1412 of the substrate 1410 can be disposed in the terminal receiving portion 1433. A groove may be formed by recessing a portion of a side surface of the terminal receiving portion 1430 inward. The width of 1433 is formed to correspond to the width of the terminal portion 1412 of the substrate 1410. The length of the terminal accommodating portion 1433 corresponds to the length of the terminal portion 1412 of the substrate 1410. It can be formed as follows.

[0128] The base 1430 may include a stepped portion 1434. The stepped portion 1434 may be The step portion 1434 may be formed on the side 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 step portion 1434 may be formed by recessing the side surface of the base 1430. The step portion 1434 may be formed so as to protrude from the side plate 112 of the cover 1100. The bottom end of 0 can be placed.

[0129] The first lens driving device 1000 may include an elastic member 1500. 100 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 can move the bobbin 1210. The elastic member 1500 supports the movement of the bobbin 1210 during AF driving. In this case, the elastic member 1500 can be called an 'AF support member'. Cut.

[0130] The elastic member 1500 may include an upper elastic member 1510. The upper elastic member 1510 may be disposed on the upper side of the bobbin 1210. The upper elastic member 1510 can be coupled to the bobbin 1210 and the housing 1310. The upper elastic member 1510 can be attached to the top surface of the bin 1210. The upper elastic member 1510 can be connected to the upper surface of the support member 1600. The upper elastic member 1510 may be formed of a leaf spring.

[0131] The upper elastic member 1510 is used as a conductive line for supplying electricity to the first coil 1220. The upper elastic member 1510 may be formed by first upper elastic units 1510 spaced apart from each other. The first upper elastic unit 1510a and the second upper elastic unit 1510b may be included. 1510a is coupled to one end of the first coil 1220 to form a second upper elastic unit 1510b. The upper elastic member 1510 and the first coil 1220 may be connected to the other end of the first coil 1220. The coil 1220 can be joined by soldering.

[0132] The upper elastic member 1510 can include an outer portion 1511. The outer portion 1511 is The outer portion 1511 can be coupled to the housing 1310. The outer portion 1511 can be attached to a protrusion of the housing 1310. The outer portion 1511 may include holes or grooves. The outer portion 1511 may be attached to the housing 1310 by adhesive. can be fixed to.

[0133] The upper elastic member 1510 can include an inner portion 1512. The inner portion 1512 can be formed by a bobbin. The inner portion 1512 can be coupled to the top surface of the bobbin 1210. The inner portion 1512 may have holes or grooves that mate with the protrusions of the bobbin 1210. The inner portion 1512 may be secured to the bobbin 1210 by an adhesive. can be done.

[0134] The upper elastic member 1510 may include a connecting portion 1513. The connecting portion 1513 may be The side portion 1511 and the inner portion 1512 can be connected. The connecting portion 1513 can elastically connect the inner portion 1511 and the inner portion 1512. In this case, the connecting part 1513 can be called an 'elastic part'. The knot 1513 can be formed by folding two or more times.

[0135] The upper elastic member 1510 may include a connecting portion 1514. The connecting portion 1514 may be a support. The joint portion 1514 can be connected to the support member 1600 by soldering. The coupling portion 1514 can be connected to the support member 1600 by means of a fastener. The coupling portion 1514 may extend from the outer portion 1511. The coupling portion 1514 may include a bent portion formed by bending.

[0136] 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 can be coupled to the bore 1210 and the housing 1310. The lower elastic member 1520 can be coupled to the lower surface of the bin 1210. The lower elastic member 1520 may be formed of a leaf spring. The lower elastic member 1520 can be integrally formed.

[0137] The lower elastic member 1520 may include an outer portion 1521. The outer portion 1521 may be The outer portion 1521 can be coupled to the housing 1310. The outer portion 1521 can be attached to a protrusion of the housing 1310. The outer portion 1521 may include holes or grooves. The outer portion 1521 may be attached to the housing 131 by an adhesive. It can be fixed to 0.

[0138] The lower elastic member 1520 may include an inner portion 1522. The inner portion 1522 may include a The inner portion 1522 can be coupled to the underside of the bobbin 1210. The inner portion 1522 may have holes or grooves that mate with the protrusions of the bobbin 1210. The inner portion 1522 may be secured to the bobbin 1210 by an adhesive. This can be done.

[0139] The lower elastic member 1520 may include a connecting portion 1523. The connecting portion 1523 may be The side portion 1521 and the inner portion 1522 can be connected. The connecting portion 1523 can elastically connect the inner portion 1521 and the inner portion 1522. In this case, the connecting part 1523 can be called an 'elastic part'. The knot 1523 can be formed by folding two or more times.

[0140] The first lens driving device 1000 may include a support member 1600. 16. The support member 1600 may be a suspension wire. The support member 1600 can movably support the housing 1310. The support member 1600 may be at least partially elastic. The support member 1600 prevents the movement of the housing 1310 and the bobbin 1210 when the OIS is driven. In this case, the support member 1600 is called an 'OIS support member'. The support member 1600 may include a plurality of wires. 0 may include four spaced apart wires. The support member 1600 may be formed of a leaf spring. The support member 1600 can be coupled to the substrate 1410. The support member 1600 can be coupled to the circuit member 1420 of the substrate 1410. 410 through the hole and soldered to the bottom surface of the substrate 1410. 00 is soldered to the bottom surface of the circuit member 1420 through a hole in the circuit member 1420. .

[0141] In the first lens driving device 1000, a damper (not shown) is disposed on a support member 1600. The damper can be disposed in the support member 1600 and the housing 1310. The damper may be disposed on the elastic member 1500. The damper may include: The elastic member 1500 and / or the support member 1600 are disposed on the elastic member 1500 and / or the support member 1600. Alternatively, the resonance phenomenon occurring from the support member 1600 can be prevented.

[0142] The first lens driving device 1000 may include a first sensor (not shown). The sensor may be an AF feedback sensor. 0. As a comparative example, the first sensor may be disposed in the housing 1310. The first sensor can detect the movement of the first movable element 1200. The first sensor may include a Hall sensor. In this case, the Hall sensor , the magnetic force of the magnet 1320 or a magnet provided separately is sensed, and the bobbin 121 The first sensor can sense the movement of the lens and the second sensor can sense the movement of the lens. , can be used for AF feedback control.

[0143] The first lens driving device 1000 may include a second sensor. The second sensor may include: The second sensor may be a sensor for OIS feedback. 410. The second sensor can measure the movement of the second movable element 1300. The second sensor may include a Hall sensor. The Hall sensor detects the magnetic force of the magnet 1320 and the housing 1310 and the magnet The movement of the net 1320 can be sensed. can be used for OIS feedback control.

[0144] The configuration of the second lens driving device will be described below with reference to the drawings.

[0145] FIG. 12 is an exploded perspective view of the second lens driving device according to the present embodiment.

[0146] The second lens driving device 2000 may be a voice coil motor (VCM).

[0147] The second lens driving device 2000 may include a cover 2100. The cover 2100 can accommodate the housing 2310 inside. 430.

[0148] The second lens driving device 2000 can include a first movable element 2200. The 2200 can move when AF is activated.

[0149] The first movable element 2200 can include a bobbin 2210. The bobbin 2210 can include a housing. The bobbin 2210 can be disposed inside the bobbin 2310. The bobbin 2210 can be disposed inside the bobbin 2310. The housing 2310 may be movably coupled to the housing 2310 by a

[0150] The first mover 2200 may include a first coil 2220. The first coil 2220 can be disposed on the bobbin 2210. 20. The electromagnetic force between the first coil 2220 and the magnet 2320 The first movable element 2200 can be driven for AF by the magnetic interaction.

[0151] The second lens driving device 2000 may include a second movable element 2300. 2300 can move when the OIS is driven. When the OIS is driven, the first movable element 2200 is It can move together with the second mover 2300 .

[0152] The second mover 2300 may include a housing 2310. The housing 2310 may be disposed on the outside of the bobbin 2210. The housing 2310 can accommodate the bobbin 2210. -2100.

[0153] The second mover 2300 may include a magnet 2320. can be disposed in the housing 2310. The magnet 2320 can include a first coil The magnet 2320 can face the second coil 2422. The magnets 2320 are disposed between the four sides of the housing 2310. The magnets 2320 can be arranged at each of the four corners. The magnets may include four corner magnets.

[0154] The second lens driving device 2000 may include a stator 2400. can movably support the second mover 2300.

[0155] The stator 2400 may include a substrate 2410. The substrate 2410 may be a base 143. The substrate 2410 may be disposed in the housing 1310, the base 1430, and the The substrate 2410 can be disposed between the magnet 2320 and the second contact 2412. The substrate 2410 may include a circuit member 2420 including a coil 2422. It can be placed at 30.

[0156] The substrate 2410 may include a terminal portion 2412. The substrate 2410 may be partially folded. The terminal portion 2412 may include a terminal portion 2412 formed by bonding the printed circuit board. It can be connected to the circuit board 11 by soldering.

[0157] The substrate 2410 may include a circuit member 2420. The circuit member 2420 may include a substrate portion. And, a fine pattern coil (FP coil, Fine Pattern coil) is attached to the substrate. The circuit member 2420 may include a second coil 2422 formed of a The second coil 2422 faces the magnet 2320. The electromagnetic interaction between the second coil 2422 and the magnet 2320 Thus, OIS driving can be performed.

[0158] The stator 2400 may include a base 2430. The base 2430 may be a housing. The base 2430 may be disposed under the substrate 2410. It is possible.

[0159] The second lens driving device 2000 may include an elastic member 2500. 00 can 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. , and an upper elastic member 2510. The upper elastic member 2510 is attached to the bobbin 2210. The elastic member 2210 may be disposed on the upper side of the elastic member 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 include , which is disposed under the bobbin 2210 and coupled to the bobbin 2210 and the housing 2310 It is possible.

[0160] The second lens driving device 2000 may include a support member 2600. The support member 2600 can movably support the second movable element 2300. The upper elastic member 2510 and the substrate 2410 may be coupled.

[0161] This embodiment is a voice coil motor (VCM) structure that prevents mutual interference between magnets. We try to propose a structure that can eliminate this.

[0162] In this embodiment, the magnet 1320 of the first lens driving device 1000 includes three magnets. Two of the magnets are 4-pole magnets, and the remaining magnet is a 2-pole magnet. Two first coils 1220 are connected in series to each other, and each of them can be a four-pole magnet. The magnets are arranged opposite each other to provide the necessary driving force during AF operation. A second coil 1422 is disposed at the bottom of the coil 1422 to provide the OIS with thrust in the X and Y directions. A dummy member is placed on the opposite side of the two-pole magnetized magnet to align the center of gravity. When OIS is in operation, the weight of the mass is eccentric and the vibration (oscillatio n) can be prevented.

[0163] In the mechanical configuration of this embodiment, the bobbin 1210 has four side surfaces on two opposing sides. One coil 1220 is wound in series, and instead of four magnets, three magnets and a dummy part are used. The material can be assembled into the housing. The Y direction is connected to two 4-pole magnetized magnets and A pair of second coils 1422 are divided to generate a driving force, and the X direction is a single two-pole magnetized motor. Since the thrust is generated only by the magnet and the single second coil 1422, the thrust is In order to solve this problem, in this embodiment, the lens central axis (C1) is offset from the product central axis (C2) toward the dummy member 1330, and a two-pole magnet The remaining space on the base 1430 side in the direction of the wire is utilized to form the second coil 1422 turn. Increased the number to increase thrust in the X direction.

[0164] When using only two-pole magnets as in the comparative example, the density of the magnetic field distribution of adjacent magnets As the number of VCMs increases, attractive or repulsive forces occur between adjacent VCMs, which affect OIS control. Difficulties may arise. The magnetic field distribution according to a comparative example is illustrated in FIG.

[0165] In this embodiment, a four-pole magnet is used to drive the two lens drivers. The effect of reducing the magnetic field interference between magnets can be obtained. This is shown in FIG. On the other hand, according to this embodiment, the repulsive force between adjacent VCMs due to magnetic field interference is ignored. If the design is done at a level similar to this, it is possible to control the OIS while ignoring the effects of magnetic field interference.

[0166] In this embodiment, the top surface of the magnet 1320 is in contact with the The part of the housing 1310 that is to be formed with the minimum injection thickness is removed to form the upper elastic member 151. 0 and the upper surface of the magnet 1320. In addition, in this embodiment, the assembly surface of the upper elastic member 1510 is in the same plane as the upper elastic member 1510. The space that the member 1510 does not pass through is filled with the injection material to form the stopper 13. The outer periphery of the housing 1310 may constitute an upper plate 1313 where the 14 is located. When viewed from above (when viewed in top view), in this embodiment, as shown in FIG. A part of the upper surface of the magnet 1320 is exposed, but the gap between the magnet 1320 and the cover 1100 is maintained. The upper plate of the housing 1310 is connected to the stopper 1314 of the housing 1310. The magnet 1320 can be mechanically constrained by the magnet 1313. As an example, the mechanical constraint effect of magnet 1320 and the assembly of magnet 1320 with its upper surface facing upwards are taken into consideration. This simultaneously ensures the effect of enhancing the quality of the product.

[0167] As described above, all the components constituting the embodiment of the present invention are combined or operated in combination. However, the present invention is not limited to including all of the components of the embodiments. In other words, the present invention includes one or more of all the components of the embodiments, and these components are not included in the present invention. Furthermore, the term "including" as used above means that the term "including" is used in conjunction with the term "component" as specifically defined. Unless otherwise stated, this means that the relevant component may be inherent, so other components It is to be understood that the term "element" refers to a single element, and that the term "element" refers to a single element. Furthermore, the term "disposed" in the above description means that the material is made of a separate material. The term "integrated" refers to a combination of a single unit and a single body. Must be.

[0168] The above description is merely an illustrative example of the technical concept of the present invention, and is not intended to be limiting of the scope of the present invention. A person having ordinary skill in the art would be able to make various modifications without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments of the present invention are intended to be within the scope of the present invention. The invention is not intended to be limiting but is illustrative and should not be construed as limiting the scope of the invention. The scope of the technical idea of ​​the present invention is not limited. The scope of protection of the present invention is as follows: The present invention is intended to be understood as a technical concept that is within the scope of the present invention. must be interpreted as being within the scope of the interest.

Claims

1. housing; a bobbin disposed within said housing; a magnet and a dummy member disposed in the housing; A first coil disposed on the bobbin; and a substrate including a second coil facing the magnet; The housing has first and second opposing sides and a third opposing side. a fourth side portion and a fourth side portion; The magnet includes a first magnet unit disposed on the first side and a third magnet unit disposed on the third side. a second magnet unit disposed on the fourth side portion; and a third magnet unit disposed on the fourth side portion. Including knits, The dummy member is disposed on the second side portion.

2. housing; a bobbin disposed within said housing; a magnet disposed in the housing; A first coil disposed on the bobbin; and a substrate including a second coil facing the magnet; The housing has first and second opposing sides and a third opposing side. a fourth side portion and a fourth side portion; The magnet includes a first magnet unit disposed on the first side and a third magnet unit disposed on the third side. a second magnet unit disposed on the fourth side portion; and a third magnet unit disposed on the fourth side portion. Including knits, The first magnet unit is a two-pole magnet, and the second magnet unit and the third magnet unit is a four-pole magnet.

3. The first coil includes a first coil unit facing the second magnet unit and a front 3. The lens according to claim 2, further comprising a second coil unit facing the third magnet unit. Drive device.

4. The first coil is a connecting member that connects the first coil unit and the second coil unit. Further comprising a part The connecting portion of the first coil is disposed between the first magnet unit and the bobbin.

4. The lens actuator according to claim 3, wherein the dummy member is disposed between the bobbin and the lens drive. Device.

5. The first coil is a first coil unit that faces the second magnet unit in the horizontal direction. and a second coil unit facing the third magnet unit in the horizontal direction. fruit, The second coil is a third coil unit that faces the first magnet unit in a vertical direction. a fourth coil unit facing the second magnet unit in the vertical direction; a fifth coil unit facing the third magnet unit in the vertical direction, Item 3. The lens driving device according to item 2.

6. the substrate includes a hole; The hole in the substrate is closer to one side of the substrate adjacent to the dummy member. The lens driving device according to claim 1 ,

7. The second magnet unit and the third magnet unit support the bobbin in the optical axis direction. Move it to The first magnet unit, the second magnet unit and the third magnet unit The unit according to any one of claims 1 to 3 and 5, wherein the housing is moved in a direction perpendicular to the optical axis direction.

2. The lens driving device according to claim 1 .

8. Each of the second magnet unit and the third magnet unit includes the first coil a first surface facing the 6. A lens according to any one of claims 1 to 3 and 5, wherein the first surface has two poles. Drive unit.

9. Each of the first to third magnet units includes a second surface facing the second coil. fruit, 6. A lens according to claim 1, wherein the second surface has two poles. Drive unit.

10. A first lens driving device according to any one of claims 1 to 3 and 5; and a second lens driving device adjacent to the first lens driving device; The second lens drive device is adjacent to a fourth side of the housing of the first lens drive device. They are arranged in such a way that The second lens driving device is housing; a bobbin disposed within a housing of the second lens drive device; a third coil disposed on an outer circumferential surface of a bobbin of the second lens driving device; A magnet is disposed in the housing of the second lens driving device and faces the third coil. T; and a substrate including a fourth coil facing a magnet of the second lens driving device; The magnet of the second lens driving device is disposed at a corner of the housing of the second lens driving device. A camera module including four magnet units arranged in the

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