KR20180098070A - Lens driving device, camera module and optical apparatus - Google Patents

Abstract

According to embodiments of the present invention, a lens driving device comprises: a housing including an upper surface and an outer wall; a bobbin arranged in the housing to move in a first direction; a first coil arranged on the bobbin; a first magnet which is arranged on the housing and faces the first coil; a base arranged on a lower side of the housing; a circuit board including a circuit member having a second coil arranged between the housing and the base to face the first magnet; an upper elastic member arranged on an upper side of the bobbin, and coupled to the bobbin and the housing; and a support member coupled to the upper elastic member and the circuit board. The upper elastic member includes an external unit coupled to the housing, a coupling unit coupled to the support member, and a leg unit connecting the external unit and the coupling unit. The housing includes a damper groove on a portion of the upper surface of the housing corresponding to the leg unit and the coupling unit, on which a damper is arranged. The damper groove includes a first groove corresponding to the leg unit, and a second groove corresponding to the coupling unit. The first groove is connected to the second groove. A length from an upper surface of the outer wall to a bottom of the second groove is larger than a length from the upper surface of the outer wall to a bottom of the first groove. A portion of the outer wall of the housing forms a first side wall of the first groove and the second groove.

Description

[0001] LENS DRIVING DEVICE, CAMERA MODULE, AND OPTICAL APPARATUS [0002]

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

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

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

Among them, there is a camera module which photographs a subject as a photograph or a moving picture. On the other hand, in recent camera modules, an auto focus (AF) function that automatically adjusts focus according to the distance of a subject is applied. In addition, an OIS (Optical Image Stabilization) function for preventing the image from being shaken by the camera shake of the photographer is applied.

However, in the conventional camera module, it is difficult to apply the damper applied to the support member in a predetermined amount, and there is a fear that the applied damper is lost.

The present embodiment is intended to provide a lens driving apparatus capable of applying a predetermined amount of a damper and preventing loss of the applied damper.

Also, a camera module and an optical apparatus including the lens driving apparatus are provided.

In this embodiment, the damper application region may be a support member, a coupling portion of the upper elastic member and the support member, a housing, and a leg portion of the upper elastic member.

In this embodiment, a damper groove in which the damper is accommodated can be formed.

The lens driving apparatus according to the present embodiment includes a housing including an upper surface and an outer wall portion; A bobbin disposed inside the housing to move in a first direction; A first coil disposed in the bobbin; A first magnet disposed in the housing and facing the first coil; A base disposed below the housing; A substrate including a circuit member having a second coil disposed between the housing and the base and facing the first magnet; An upper elastic member disposed on the upper side of the bobbin and coupled to the bobbin and the housing; And a support member coupled with the upper elastic member and the substrate, wherein the upper elastic member includes an outer portion coupled to the housing, a coupling portion coupled with the support member, and a leg portion connecting the outer portion and the coupling portion Wherein the damper groove has a first groove corresponding to the leg portion, and a second groove corresponding to the first groove, wherein the damper groove has a first groove corresponding to the leg portion, Wherein the first groove is connected to the second groove and the length from the upper surface of the outer wall to the bottom of the second groove is greater than the length from the upper surface of the outer wall to the bottom of the first groove, And a portion of the outer wall of the housing may form a first sidewall of the first groove and the second groove.

The damper groove may further include a third groove connected to the second groove, and a portion of the outer wall of the housing may form a second sidewall of the second groove and the third groove.

The sidewall of at least one of the first sidewall and the second sidewall may include a fourth sidewall.

The fourth groove may be disposed between the first groove and the second groove, or between the second groove and the third groove.

The first groove and the third groove may be disposed above the second groove.

The damper may be disposed in the damper groove to cover the support member, the coupling portion, and the leg portion.

The damper may be disposed in an area exceeding 50% of the total area of the lower surface of the leg portion.

The housing includes first to fourth side portions and first to fourth corner portions formed between the first to fourth side portions, and the supporting member includes a first supporting portion disposed at a first corner portion of the housing Wherein the upper elastic member includes a plurality of elastic units spaced from each other, and the plurality of elastic units include a first elastic unit electrically connected to the first support unit, A first outer side coupled to one side of the housing, a second outer side coupled to a side adjacent to one side of the housing, a first coupling coupled to the support, and a second coupling coupled to the first outer side and the first coupling, A first leg portion and a second leg portion connecting the second outside portion and the first engaging portion, wherein the first leg portion and the second leg portion may be disposed opposite to each other with respect to the first engaging portion.

Each of the first and second leg portions may be bent or curved at least twice.

The camera module according to the present embodiment includes a printed circuit board; An image sensor disposed on the printed circuit board; A housing including an upper surface and an outer wall portion; A bobbin disposed inside the housing to move in a first direction; A first coil disposed in the bobbin; A first magnet disposed in the housing and facing the first coil; A base disposed between the housing and the printed circuit board; A substrate including a circuit member having a second coil disposed between the housing and the base and facing the first magnet; An upper elastic member disposed on the upper side of the bobbin and coupled to the bobbin and the housing; And a support member coupled to the upper elastic member and the substrate, wherein the support member includes a first wire and a second wire disposed at a first corner of the housing, the first wire and the second wire being separated from each other, A first elastic unit coupled to the first wire and a second elastic unit coupled to the second wire, wherein the first elastic unit includes a first outer side coupled to the housing, a first outer side coupled to the first wire, And a first leg portion connecting the first outer portion and the first coupling portion, wherein the second elastic unit includes a second outer portion coupled to the housing, a second coupling portion coupled to the second wire, And a second leg portion connecting the second outer portion and the second coupling portion, wherein the housing includes a damper groove in which a damper is disposed, the damper groove includes a first groove disposed in the first coupling portion, In the second engaging portion And a third groove disposed between the first groove and the second groove, wherein a portion of the outer wall of the housing forms a first sidewall of the first groove and the second groove, And the second sidewall of the second groove and the third groove can be formed.

The optical apparatus according to the present embodiment includes a main body, a camera module disposed in the main body and capturing an image of a subject, and a display unit disposed in the main body and outputting an image photographed by the camera module, Printed circuit board; An image sensor disposed on the printed circuit board; A housing including an upper surface and an outer wall portion; A bobbin disposed inside the housing to move in a first direction; A first coil disposed in the bobbin; A first magnet disposed in the housing and facing the first coil; A base disposed between the housing and the printed circuit board; A substrate including a circuit member having a second coil disposed between the housing and the base and facing the first magnet; An upper elastic member disposed on the upper side of the bobbin and coupled to the bobbin and the housing; And a support member coupled with the upper elastic member and the substrate, wherein the upper elastic member includes an outer portion coupled to the housing, a coupling portion coupled with the support member, and a leg portion connecting the outer portion and the coupling portion Wherein the damper groove has a first groove corresponding to the leg portion, and a second groove corresponding to the first groove, wherein the damper groove has a first groove corresponding to the leg portion, Wherein the first groove is connected to the second groove and the length from the upper surface of the outer wall to the bottom of the second groove is greater than the length from the upper surface of the outer wall to the bottom of the first groove, And a portion of the outer wall of the housing may form a first sidewall of the first groove and the second groove.

In this embodiment, the damper groove is formed so that the damper can be applied in a predetermined amount, and the applied damper is not lost.

1 is a perspective view of a lens driving apparatus according to the present embodiment.
2 is a cross-sectional view taken along line XY in Fig.
3 is an exploded perspective view of the lens driving apparatus according to the present embodiment.
FIG. 4 is an exploded perspective view of the lens driving apparatus according to the present embodiment viewed from a direction different from FIG. 3. FIG.
Fig. 5 is an exploded perspective view showing the first mover and the related structure according to the present embodiment.
6 is an exploded perspective view showing the second mover according to the present embodiment.
7 is an exploded perspective view showing a stator according to the present embodiment.
8 is an exploded perspective view showing an elastic member, a support member, and related configurations according to the present embodiment.
9 is a perspective view of the upper elastic member according to the present embodiment.
10 is a plan view of the lens driving apparatus according to the present embodiment with the cover member removed.
Figs. 11 and 12 are enlarged perspective views of part of Fig.
Figs. 13 to 15 are enlarged partial plan views of Fig. 10. Fig.
16 is a perspective view showing a state in which the cover member is removed from the lens driving apparatus according to the present embodiment and is arbitrarily cut.
17 is a side view showing the side view of Fig.
18 is an enlarged perspective view of part of Fig.
19 is a perspective view showing the drive magnet and the first sensing unit according to the present embodiment.
20 is a perspective view showing a bobbin, an AF drive coil, and a sensing magnet according to the present embodiment.
21 is a bottom perspective view of the lens driving apparatus according to the present embodiment.
22 is a bottom view of the lens driving apparatus according to the present embodiment.
23 and 24 are enlarged perspective views of part of Fig.
Fig. 25 is an enlarged plan view of part of Fig. 10; Fig.
Fig. 26 is a perspective view showing a part of the configuration of Fig. 25;
27 is a plan view showing the substrate of the stator according to the present embodiment.

Hereinafter, some embodiments of the present invention will be described with reference to exemplary drawings. In describing the components in the drawings, the same components are denoted by the same reference numerals whenever possible, even if they are displayed on other drawings.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected, coupled, or connected to the other component, It should be understood that another element may be "connected", "coupled" or "connected" between elements.

The 'optical axis direction' used below is defined as the optical axis direction of the lens module in a state of being coupled to the lens driving device. On the other hand, 'optical axis direction' can be used in combination with 'vertical direction', 'z axis direction', and the like.

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

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

Hereinafter, any one of the AF driving coil 220, the driving magnet 320 and the OIS driving coil 422 is referred to as a 'first driving unit', the other one as a 'second driving unit', and the other as a 'third driving unit' . On the other hand, the AF drive coil 220, the drive magnet 320, and the OIS drive coil 422 can be arranged with their positions mutually changed.

Hereinafter, any one of the AF drive coil 220 and the OIS drive coil 422 may be referred to as a 'first coil' and the other as a 'second coil'.

Hereinafter, any one of the driving magnet 320, the sensing magnet 730, and the compensating magnet 740 will be referred to as a "first magnet", another one as a "second magnet", and the other as a "third magnet" .

Hereinafter, any one of the substrate 410 of the stator 400 and the substrate 720 of the first sensing unit 700 may be referred to as a 'first substrate' and the other as a 'second substrate'.

Hereinafter, the configuration of the optical device according to the present embodiment will be described.

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

The optical device may include a main body (not shown), a camera module, and a display portion (not shown). However, any one or more of the main body, the camera module, and the display unit may be omitted or changed in the optical apparatus.

The body can form the appearance of the optical device. For example, the body may include a rectangular parallelepiped shape. As another example, the body may be rounded at least in part. The main body can accommodate the camera module. A display section may be disposed on one side of the main body. For example, the display unit and the camera module may be disposed on one side of the main body and the camera module may be further disposed on the other side (the side opposite to the one side) of the main body.

The camera module may be disposed in the main body. The camera module may be disposed on one side of the main body. At least a part of the camera module may be accommodated in the main body. The plurality of camera modules may be provided. The plurality of camera modules may be disposed on one surface of the main body and on each of the other surfaces of the main body. The camera module can take an image of a subject.

The display portion may be disposed in the main body. The display unit may be disposed on one side of the main body. That is, the display unit can be disposed on the same plane as the camera module. Alternatively, the display portion may be disposed on the other surface of the main body. The display portion may be disposed on a side of the main body opposite to the side on which the camera module is disposed. The display unit can output the image photographed by the camera module.

Hereinafter, the configuration of the camera module according to the present embodiment will be described.

The camera module may include a lens driving device, a lens module (not shown), an infrared filter (not shown), a printed circuit board (not shown), an image sensor (not shown), and a controller (not shown). However, at least one of the lens driving device, the lens module, the infrared filter, the printed circuit board, the image sensor, and the control unit may be omitted or changed in the camera module.

The lens module may include at least one lens. The lens module may include a lens and a lens barrel. The lens module may include at least one lens (not shown) and a lens barrel for receiving the lens. However, one configuration of the lens module is not limited to the lens barrel, and any structure can be used as long as it can support one or more lenses. The lens module may be coupled to the inside of the lens driving device. The lens module may be coupled to the bobbin 210 of the lens driving device. The lens module can move integrally with the bobbin 210. The lens module may be coupled to the bobbin 210 by an adhesive (not shown). In one example, the lens module may be threaded with the bobbin 210. On the other hand, the light having passed through the lens module can be irradiated to the image sensor.

The infrared filter can block the light of the infrared region from entering the image sensor. An infrared filter may be disposed between the lens module and the image sensor. For example, the infrared filter may be disposed on a holder member (not shown) provided separately from the base 430. In another example, the infrared filter may be mounted in the through hole 431 of the base 430. The infrared filter may be formed of a film material or a glass material. The infrared filter may be formed by coating an infrared blocking coating material on a plate-shaped optical filter such as a cover glass for protecting an image pickup surface or a cover glass. For example, the infrared filter may be an infrared absorbing filter (Blue filter) that absorbs infrared rays. In another example, the infrared filter may be an IR cut filter that reflects infrared light.

A lens driving device may be disposed on an upper surface of the printed circuit board. The printed circuit board may be disposed on the lower surface of the lens driving device. The printed circuit board can be combined with the lens driving device. An image sensor may be disposed on the printed circuit board. The printed circuit board may be electrically connected to the image sensor. In one example, a holder member may be disposed between the printed circuit board and the lens driving device. At this time, the holder member can house the image sensor inside. As another example, the lens driving apparatus may be directly disposed on the printed circuit board. At this time, the lens driving device can accommodate the image sensor on the inner side. With this structure, light having passed through the lens module coupled to the lens driving device can be irradiated to the image sensor disposed on the printed circuit board. The printed circuit board can supply power (current) to the lens driving apparatus. On the other hand, a control unit for controlling the lens driving device may be disposed on the printed circuit board.

The image sensor may be disposed on a printed circuit board. The image sensor may be electrically connected to the printed circuit board. In one example, the image sensor may be coupled to the printed circuit board by Surface Mounting Technology (SMT). As another example, the image sensor may be coupled to a printed circuit board by flip chip technology. The image sensor may be arranged so that the optical axis and the lens module are aligned with each other. That is, the optical axis of the image sensor and the optical axis of the lens module may be aligned. Thereby, the image sensor can acquire light passing through the lens module. The image sensor can convert the light irradiated to the effective image area of the image sensor into an electrical signal. The image sensor may be any one of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID. However, the type of the image sensor is not limited thereto, and the image sensor may include any structure capable of converting incident light into an electrical signal.

The control portion may be disposed on the printed circuit board. In one example, the control portion can be disposed inside the lens driving device. As another example, the control portion may be located outside the lens driving device. The control unit can individually control the direction, intensity, and amplitude of the current supplied to the AF driving coil 220 and the OIS driving coil 422 of the lens driving apparatus. The control unit controls the lens driving device to perform at least one of the autofocus function and the camera shake correction function of the camera module. That is, the control unit may control the lens driving unit to move the lens module in the optical axis direction or move it in a direction perpendicular to the optical axis direction or tilt the lens module. Furthermore, the control unit may perform at least one of feedback control of the autofocus function and feedback control of the shake correction function. More specifically, the control unit receives the position of the bobbin 210 or the housing 310 sensed by the first sensing unit 700 and controls the current applied to the AF driving coil 220 to perform autofocus feedback control . The controller may receive the position of the bobbin 210 or the housing 310 sensed by the second sensor 800 and may control the current applied to the OIS driving coil 422 to perform the camera shake correction feedback control . Since the feedback control by the control unit mentioned above occurs in real time, more accurate autofocus function and camera shake correction function can be performed.

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

1 is a perspective view of the lens driving apparatus according to the present embodiment, FIG. 2 is a sectional view as seen from XY in FIG. 1, FIG. 3 is an exploded perspective view of the lens driving apparatus according to the present embodiment, 5 is an exploded perspective view showing the first mover and the related configuration according to the present embodiment, and Fig. 6 is a cross-sectional view of the second mover according to the present embodiment. 8 is an exploded perspective view showing an elastic member, a support member, and a related structure according to the present embodiment, and Fig. 9 is an exploded perspective view showing the stator according to this embodiment. Fig. 10 is a plan view of the lens driving apparatus according to the present embodiment, in which the cover member is removed. Figs. 11 and 12 are enlarged perspective views of part of Fig. 10, 13 - 16 is a perspective view showing a state in which the cover member is removed from the lens driving apparatus according to the present embodiment and is arbitrarily cut, and FIG. 17 is a perspective view of the lens driving apparatus according to the present embodiment, 19 is a perspective view showing a drive magnet and a first sensing unit according to the present embodiment, FIG. 20 is a perspective view showing a bobbin, an AF 22 is a bottom view of the lens driving apparatus according to the present embodiment, and Figs. 23 and 24 are diagrams showing a state in which the driving coil and the sensing magnet 25 is an enlarged plan view of a portion of Fig. 10, Fig. 26 is a perspective view showing a part of the configuration of Fig. 25, and Fig. 27 is a perspective view of the embodiment Following Fig. 7 is a plan view showing the substrate of the stator.

The lens driving device includes a cover member 100, a first mover 200, a second mover 300, a stator 400, an elastic member 500, a support member 600, a first sensing unit 700, A second sensor 800, and dampers 910 and 920. In this case, In the lens driving apparatus, the cover member 100, the first movable element 200, the second movable element 300, the stator 400, the elastic member 500, the supporting member 600, the first sensing unit 700, the second sensor 800, and the dampers 910, 920 may be omitted or changed. In particular, the first sensing unit 700 and the second sensor 800 are configured for autofocus feedback control and camera shake correction feedback control, and one or more of them may be omitted.

The cover member 100 can house the housing 310 inside. The cover member 100 can be engaged with the base 430. The cover member 100 can form an appearance of the lens driving device. The cover member 100 may be in the form of a hexahedron having an open bottom. However, the shape of the cover member 100 is not limited thereto. The cover member 100 may be a non-magnetic body. If the cover member 100 is formed of a magnetic material, the magnetic force of the cover member 100 may affect at least one of the drive magnet 320, the sensing magnet 730, and the compensation magnet 740. The cover member 100 may be formed of a metal material. More specifically, the cover member 100 may be formed of a metal plate. In this case, the cover member 100 may block electromagnetic interference (EMI). Because of this feature of the cover member 100, the cover member 100 can be referred to as an " EMI shield can ". The cover member 100 may be connected to the ground portion of the printed circuit board 40. Through this, the cover member 100 can be grounded. The cover member 100 can block the airflow generated from the outside of the lens driving apparatus from flowing into the cover member 100. [ In addition, the cover member 100 can prevent the radio wave generated inside the cover member 100 from being emitted to the outside of the cover member 100.

The cover member 100 may include an upper plate 101 and a side plate 102. The cover member 100 may include an upper plate 101 and a side plate 102 extending downward from an outer periphery of the upper plate 101. [ The top plate 101 of the cover member 100 may be disposed on the upper side of the housing 310. The side plate 102 of the cover member 100 can extend from the top plate 101 and can be coupled with the base 430. In one example, the cover member 100 may be coupled to the base 430. A portion of the side plate 102 of the cover member 100 may be coupled to the base 430. [ The lower end of the side plate 102 of the cover member 100 may be disposed at the step 435 of the base 430. [ The inner surface of the side plate 102 of the cover member 100 can be in direct contact with the outer side surface of the base 430. [ The inner surface of the side plate 102 of the cover member 100 can be joined to the base 430 by an adhesive (not shown). As another example, the cover member 100 may be directly coupled to the upper surface of the printed circuit board. The first mover 200, the second mover 300, the stator 400, the elastic member 500, and the support member 600 are fixed to the inner space formed by the cover member 100 and the base 430 . With such a structure, the cover member 100 can protect the internal components from external impact and prevent the penetration of external contaminants.

The cover member 100 may include an opening 110 and a depression 120. However, at least one of the opening 110 and the depressed portion 120 in the cover member 100 may be omitted or changed.

The opening 110 may be formed in the top plate 101 of the cover member 100. The opening 110 can expose the lens module to the upper side. The opening 110 may be formed in a shape corresponding to the lens module. The size of the opening 110 may be larger than the diameter of the lens module so that the lens module can be assembled through the opening 110. The light introduced through the opening 110 can pass through the lens module. At this time, the light passing through the lens module can be converted into an electrical signal in the image sensor and can be acquired as an image.

The depressed portion 120 may be formed by recessing the lower surface of the side plate 102 of the cover member 100. The terminal portion 412 of the substrate 410 may be exposed between the depressions 120. [ The protrusions 441, 442, 443, and 444 of the base 430 can be inserted into the depression 120.

The depression 120 may include a first depression 120a and a second depression 120b. The depressed portion 120 may include a first depressed portion 120a formed on one side of the base 430 and a second depressed portion 120b formed on the other side of the base 430. [ The first terminal portion 412a may be exposed through the first depression 120a. And the second terminal portion 412b may be exposed through the second depression 120b.

The depressed portion 120 may include the depressed surface 121. The depressed portion 120 may include a depressed surface 121 formed above the lower surface of the side plate 102. The depressed portion 120 may include first and second connecting surfaces connecting the lower surface of the side plate 102 and the depressed surface 121. The recessed surface 121 may be formed above the lower surface of the side plate 102. The lower surface and the depressed surface 121 of the side plate 102 can be connected by the first and second connecting surfaces of the cover member 100. [ The recessed surface 121 and the first connection surface can be supported by the first protrusion 441. The recessed surface 121 and the second connection surface can be supported by the second projection 442.

The first movable element 200 may be combined with a lens module (which may be described as a component of the lens driving device), which is one component of the camera module. The first movable element 200 can house the lens module inside. The outer periphery surface of the lens module can be coupled to the inner periphery surface of the first movable element 200. [ The first mover 200 can move through interaction with the second mover 300 and / or the stator 400. [ At this time, the first movable element 200 can move integrally with the lens module. On the other hand, the first movable element 200 can move for an autofocus function. At this time, the first mover 200 may be referred to as an 'AF mover'. However, the present invention is not limited to the member that moves the first mover 200 only for the autofocus function. The first movable element 200 can also be moved for the shake correction function.

The first movable element 200 may include a bobbin 210 and an AF driving coil 220. However, any one or more of the bobbin 210 and the AF driving coil 220 in the first mover 200 may be omitted or changed.

The bobbin 210 may be disposed inside the housing 310. The bobbin 210 may be disposed in the through hole 311 of the housing 310. The bobbin 210 can move in the optical axis direction with respect to the housing 310. The bobbin 210 may be disposed inside the housing 310 to move in a first direction. At this time, the first direction may be an optical axis direction. The bobbin 210 may be arranged to move along the optical axis in the through hole 311 of the housing 310. The bobbin 210 may be coupled to a lens module. The outer circumferential surface of the lens module may be coupled to the inner circumferential surface of the bobbin 210. The AF drive coil 220 may be coupled to the bobbin 210. The AF drive coil 220 may be coupled to the outer circumferential surface of the bobbin 210. [ The lower portion of the bobbin 210 can be engaged with the lower elastic member 520. The upper portion of the bobbin 210 may be engaged with the upper elastic member 510.

In this embodiment, the bobbin 210 can be bi-directionally driven. That is, the bobbin 210 can selectively move upward and downward along the optical axis. The bobbin 210 can move upward by 210 to 330 占 퐉 and downward by 20 to 100 占 퐉.

The bobbin 210 may include a through hole 211, a driving part coupling part 212, an upper coupling part 213 and a lower coupling part. The bobbin 210 may include a projection 215, and a jig groove 216. The bobbin 210 may include a first stopper 217, a second stopper 218, and a third stopper 219. In the bobbin 210, the through hole 211, the driving portion coupling portion 212, the upper coupling portion 213, the lower coupling portion, the projection 215, the jig groove 216, the first stopper 217, The second stopper 218, and the third stopper 219 may be omitted.

The through hole 211 may be formed on the inner side of the bobbin 210. The through holes 211 may be formed in a vertically open type. The lens module may be coupled to the through hole 211. A screw thread corresponding to a thread formed on the outer peripheral surface of the lens module may be formed on the inner circumferential surface of the through hole 211. That is, the lens module can be screwed into the through hole 211. An adhesive may be disposed between the lens module and the bobbin 210. At this time, the adhesive may be an epoxy which is cured by at least one of ultraviolet (UV), heat, and laser.

The AF driving coil 220 may be coupled to the driving unit engaging portion 212. The driving portion coupling portion 212 may be formed on the outer peripheral surface of the bobbin 210. The driving part coupling part 212 may be formed as a groove formed by a part of the outer circumferential surface of the bobbin 210 being recessed inward. At this time, at least a part of the AF driving coil 220 may be accommodated in the driving part engaging part 212. The driving portion coupling portion 212 may be formed integrally with the outer circumferential surface of the bobbin 210. For example, the driving portion engaging portion 212 may be continuously formed along the outer circumferential surface of the bobbin 210. At this time, the AF drive coil 220 may be wound around the driving portion coupling portion 212. [ As another example, the plurality of the driving portion coupling portions 212 may be formed to be spaced apart from each other. At this time, a plurality of AF driving coils 220 may also be coupled to each of the driving unit engaging portions 212. As another example, the driving portion engaging portion 212 may be formed as an upper side or a lower side opening type. At this time, the AF driving coil 220 may be inserted into the driving unit engaging portion 212 through the opened portion in the previously wound state, and may be coupled.

The driving portion coupling portion 212 may include a first coil drawing groove 212a and a second coil drawing groove 212b. The first coil lead-out groove 212a and the second coil lead-out groove 212b may be formed by recessing a part of the upper surface of the bobbin 210. [ The first coil lead-out groove 212a and the second coil lead-out groove 212b may be formed by recessing a part of the outer peripheral surface of the bobbin 210. [ The first coil lead-out groove 212a and the second coil lead-out groove 212b may be spaced apart from each other. The lead wire of the AF drive coil 220 may be disposed in each of the first coil lead-out groove 212a and the second coil lead-out groove 212b. Both ends of the AF drive coil 220 may be coupled to the upper elastic member 510 through the first coil drawing groove 212a and the second coil drawing groove 212b.

The upper engagement portion 213 can be engaged with the upper elastic member 510. The upper engagement portion 213 can be engaged with the inner side portion 512 of the upper elastic member 510. The upper coupling portion 213 may protrude upward from the upper surface of the bobbin 210. For example, the protrusion of the upper coupling portion 213 may be inserted into the groove or the hole of the inner side portion 512 of the upper elastic member 510 to be engaged. At this time, the protrusion of the upper coupling portion 213 is inserted into the hole of the inner side portion 512 to be thermally fused, so that the upper side elastic member 510 can be fixed between the upper surface of the bobbin 210 and the heat-

The upper coupling portion 213 may include a first projection 2131 and a second projection 2132. The first protrusion 2131 and the second protrusion 2132 may be spaced apart from each other. The first protrusion 2131 and the second protrusion 2132 can guide the position of the upper elastic member 510.

The first protrusion 2131 may be coupled to the first hole 5121. The diameter of the first protrusion 2131 may be larger than the diameter of the second protrusion 2132. The first protrusion 2131 can be engaged with the upper elastic member 510 through thermal fusion. In this process, a part of the first projection 2131 can be received in the guide hole 5123. Also, the guide hole 5123 may be referred to as a " groove extending from the first hole 2131 ".

The second protrusion 2132 can be received at least partly in the second hole 5122. The diameter of the second protrusion 2132 may be smaller than the diameter of the first protrusion 2131. The second hole 5122 and the second protrusion 2132 are coupled to each other by the double bond of the first hole 5121 and the first protrusion 2131 and the second hole 5122 and the second protrusion 2132, 512 can be prevented from rotating with respect to the bobbin 210.

And the lower engaging portion can be engaged with the lower elastic member 520. The lower engaging portion can be engaged with the inner side portion 522 of the lower elastic member 520. [ The lower coupling part may protrude downward from the lower surface of the bobbin 210. For example, the protrusion of the lower engagement portion may be inserted and engaged with a groove or a hole of the inner side portion 522 of the lower elastic member 520. At this time, the protrusion of the lower coupling part is inserted into the hole of the inner side part 522 and is thermally fused, so that the lower elastic member 520 can be fixed between the lower surface of the bobbin 210 and the heat-

The protrusion 215 may protrude from the upper surface of the bobbin 210. A second damper 920 may be disposed on the projection 215. The second damper 920 may be applied to the projection 215. The inner side surface of the projection 215 may be formed as a curved surface 2151. The outer side surface of the projection 215 may be formed as a flat surface 2152.

The jig groove 216 may be recessed on the upper surface of the bobbin 210. The jig groove 216 can be used to jig the bobbin 210 in the assembly process of the lens driving device. In particular, the jig grooves 216 may be used to grip the bobbin 210 when the lens module is screwed onto the bobbin 210 to prevent the bobbin 210 from rotating. The jig grooves 216 may include first grooves and second grooves formed on the upper surface of the bobbin 210 in a shape corresponding to the mutually opposite sides. The first groove and the second groove may be formed on opposite sides of each other. The first groove and the second groove may be formed in the same shape. The first and second grooves may be spaced apart from the sensing magnet 730 and the compensating magnet 740. A virtual straight line connecting the center of the first groove and the center of the second groove can meet at an imaginary straight line and an optical axis connecting the center of the sensing magnet 730 and the center of the compensating magnet 740. A virtual straight line connecting the center of the first groove and the center of the second groove may be orthogonal to a virtual straight line connecting the center of the sensing magnet 730 and the center of the compensating magnet 740.

The first stopper 217 and the second stopper 218 may be spaced apart from each other. The first stopper 217 and the second stopper 218 may limit the lower limit of the movement of the bobbin 210. [ That is, the first stopper 217 and the second stopper 218 can function as a lower stopper of the bobbin.

The first stopper 217 may be spaced apart from the second stopper 218. The first stopper 217 may overlap the second mover 300 in the direction of the optical axis. The first stopper 217 may overlap with the housing 310 in the optical axis direction. At least a portion of the first stopper 217 may be disposed on the upper side of the housing 310. The first stopper 217 may protrude from the outer circumferential surface of the bobbin 210. The first stopper 217 may protrude from the outer side surface of the bobbin 210. The first stopper 217 may be in contact with the housing 310 as the bobbin 210 moves. A part of the lower surface of the first stopper 217 can contact the AF drive coil 220. [ A part of the lower surface of the first stopper 217 can be in surface contact with the AF drive coil 220. [ The lower surface of the first stopper 217 may be disposed below the lower surface of the second stopper 218. [

The second stopper 218 may be spaced apart from the first stopper 217. The second stopper 218 may overlap the second mover 300 in the direction of the optical axis. The second stopper 218 may overlap the driving magnet 320 in the optical axis direction. The second stopper 218 may overlap the housing 310 in the optical axis direction. The second stopper 218 may protrude from the outer peripheral surface of the bobbin 210. The second stopper 218 may protrude from the outer side surface of the bobbin 210. The second stopper 218 may be in contact with the driving magnet 320 in accordance with the movement of the bobbin 210. The lower surface of the second stopper 218 may be disposed above the lower surface of the first stopper 217.

The distance in the direction of the optical axis between the first stopper 217 and the second mover 300 may be different from the distance in the optical axis direction between the second stopper 218 and the second mover 300 in this embodiment. The distance between the first stopper 217 and the second mover 300 in the direction of the optical axis may be shorter than the distance between the second mover 300 and the second stopper 218 in the direction of the optical axis. The distance between the first stopper 217 and the second mover 300 in the optical axis direction may be longer than the distance between the second mover 300 and the second mover 300 in the optical axis direction. That is, the movement limit distance by the first stopper 217 and the movement limit distance by the second stopper 218 may be different. The first stopper 217 and the second stopper 218 first collide with each other when the bobbin 210 moves and the other one bumps later to cause the first stopper 217 and the second stopper 218 The impact can be dispersed. Therefore, breakage of the first stopper 217 and the second stopper 218 can be prevented.

The distance between the first stopper 217 and the housing 310 in the optical axis direction may be shorter than the distance between the second stopper 218 and the driving magnet 320 in the optical axis direction. When the bobbin 210 moves downward, the first stopper 217 of the bobbin 210 first hits the housing 310 and the second stopper 218 hits the drive magnet 320 at a later time . As a result, the second stopper 218 hits the drive magnet 320, and the drive magnet 320 is prevented from falling off the housing 310. For example, the distance between the first stopper 217 and the housing 310 in the direction of the optical axis may be 125 to 135 占 퐉, and the distance between the second stopper 218 and the driving magnet 320 in the direction of the optical axis may be 135 to 145 占 퐉 have. The distance between the first stopper 217 and the housing 310 in the direction of the optical axis may be 130 占 퐉 and the distance between the second stopper 218 and the driving magnet 320 in the direction of the optical axis may be 140 占 퐉.

The first stopper 217 may be disposed on the corner portion side of the housing 310 and the second stopper 218 may be disposed on the side of the housing 310. [ The first stopper 217 may be disposed on each of the second corner portion 306 side and the fourth corner portion 308 side. That is, the number of the first stoppers 217 may be two. The first stopper 217 may be formed only on the portion where the sensing magnet 730 and the compensating magnet 740 are not disposed. In other words, the first stopper 217 may be formed at two corners of the four corners of the bobbin 210, and the sensing magnet 730 and the compensating magnet 740 may be disposed at the other two corners. The second stopper 218 may be disposed on each of the first to fourth side portions 301, 302, 303, 304 side. That is, the number of the second stoppers 218 may be four.

The first stopper 217 may be disposed on the side of the housing 310 and the second stopper 218 may be disposed on the corner of the housing 310. [

The lower surface of the first stopper 217 may overlap the upper surface of the protrusion of the housing 310 in the optical axis direction. The lower surface of the first stopper 217 of the bobbin 210 and the upper surface of the protrusion of the housing 310 can be in contact with each other when the bobbin 210 moves downward. The upper surface of the protrusion of the housing 310 may include a groove disposed at a portion corresponding to the outer end or lower surface of the first stopper 217.

In the present embodiment, the grooves are provided in the portion corresponding to the outer end or the lower surface of the first stopper 217, so that the moment load generated in the first stopper 217 can be reduced. In this way, when the first stopper 217 contacts the upper surface of the protrusion of the housing 310, the contact area can be reduced through the groove disposed on the upper surface of the protrusion of the housing 310, thereby reducing the possibility of foreign matter generation . Also, the occurrence of a crack in the first stopper 217 can be minimized. The outer end of the first stopper 217 comes into contact with the protrusion of the housing 310. When the groove 310 is present, the first stopper 217 contacts the protrusion of the housing 310, The inner end of the first stopper 217 does not hit the protrusion of the housing 310 and the inner end of the first stopper 217 hits the protrusion of the housing 310. Comparing the two cases, it can be seen that as the impact is generated from the outside of the first stopper 217, since the moment load is large, the moment load is small when there is a groove.

The second stopper 218 may include a body portion 2181 and a protrusion 2182. The second stopper 218 includes a body portion 2181 protruding from the outer surface of the bobbin 210 in a direction perpendicular to the optical axis and a protrusion 2182 protruding in the direction of the optical axis from the lower surface of the body portion 2181 . However, the above-mentioned structure can also be explained by forming the groove on the lower surface of the body portion 2181. The protrusion 2182 may overlap with the drive magnet 320 in the direction of the optical axis. The protrusion 2182 is formed such that the distance from the outer surface of the bobbin 210 to the outer surface of the protrusion 2182 in the direction perpendicular to the optical axis is smaller than the distance from the outer surface of the bobbin 210 to the outer surface of the body 2181 And may include short portions. The extension length of the protrusion 2182 from the outer surface of the bobbin 210 may be shorter than the extension length of the body portion 2181 from the outer surface of the bobbin 210. [ The protruding portion 2182 can protrude from the lower surface of the body portion 2181. That is, the protruding portion 2182 may be formed on the lower side of the body portion 2181.

Alternatively, the groove structure of the protrusion of the housing 310 may be formed on the second stopper 218 side. Further, the protrusion 2182 may be formed on the first stopper 217. The lower surface of the first stopper 217 may include a first groove that overlaps with the second mover 300 in the optical axis direction. At this time, the first groove may correspond to a region where the protruding portion 2182 is not formed in the lower surface of the body portion 2181. The lower surface of the second stopper 218 may include a second groove that overlaps the second mover 300 in the optical axis direction. At this time, the second groove may correspond to the first groove.

In this embodiment, since the protrusion 2182 is shorter than the body 2181, the moment load generated in the second stopper 218 can be reduced. As a result, the occurrence of a crack in the second stopper 218 can be minimized. More specifically, when only the body 2181 exists, the outer end of the body 2181 collides with the driving magnet 320. When the projection 2182 exists, the outer end of the projection 2182 is driven And collides with the magnet 320. The moment load generated in the second stopper 218 is smaller than the moment load generated in the second stopper 218 when the body portion 2181 collides with the protruding portion 2182.

The third stopper 219 may protrude from the upper surface of the bobbin 210. The third stopper 219 may overlap the cover member 100 in the direction of the optical axis. With such a structure, the third stopper 219 can limit the upper limit of the movement of the bobbin 210. [ That is, the third stopper 219 can function as an upper stopper of the bobbin 210. [

In this embodiment, a receiving groove for avoiding a burr of the upper elastic member 510 may be formed on the upper surface of the housing 310.

The AF drive coil 220 may be disposed on the bobbin 210. The AF drive coil 220 may be disposed on the outer circumferential surface of the bobbin 210. The AF drive coil 220 can be directly wound on the bobbin 210. [ The AF drive coil 220 can be opposed to the drive magnet 320. In this case, when a current is supplied to the AF drive coil 220 to form a magnetic field around the AF drive coil 220, the electromagnetic force is generated between the AF drive coil 220 and the drive magnet 320, (220) can move relative to the drive magnet (320). The AF drive coil 220 can be electromagnetically interacted with the drive magnet 320. The AF drive coil 220 can move the bobbin 210 in the direction of the optical axis with respect to the housing 310 through an electromagnetic interaction with the drive magnet 320. [ For example, the AF drive coil 220 may be a single coil formed integrally. As another example, the AF drive coil 220 may include a plurality of coils spaced from each other. The AF driving coil 220 may be provided with four coils spaced apart from each other. At this time, the four coils may be disposed on the outer circumferential surface of the bobbin 210 so that two neighboring coils form a 90 DEG angle with each other.

The AF drive coil 220 may include a pair of lead wires for power supply. At this time, a pair of outgoing lines of the AF drive coil 220 may be electrically connected to the fifth and sixth upper elastic units 505 and 506, which are the constituent elements of the upper elastic member 510. That is, the AF drive coil 220 can be supplied with power through the upper elastic member 510. More specifically, the AF drive coil 220 can be sequentially supplied with power through the printed circuit board, the substrate 410, the support member 600, and the upper elastic member 510. Alternatively, the AF drive coil 220 may be supplied with power through the lower elastic member 520.

The second mover 300 can accommodate at least a part of the first mover 200 on the inner side. The second mover 300 can move the first mover 200 or move with the first mover 200. [ The second mover 300 can move through interaction with the stator 400. The second mover 300 can move for the shake correction function. At this time, the second mover 300 may be referred to as an 'OIS mover'. The second mover 300 can move integrally with the first mover 200 when the mobile mover 300 is moved for the purpose of compensating for the shaking motion.

The second mover 300 may include a housing 310 and a driving magnet 320. However, at least one of the housing 310 and the driving magnet 320 may be omitted or changed in the second mover 300.

The housing 310 may be disposed outside the bobbin 210. The housing 310 can accommodate at least a part of the bobbin 210 inside. In one example, the housing 310 may include a hexahedral shape. The housing 310 may include a side portion, and a corner portion formed between the side portions. The housing 310 may include four side surfaces and four corner portions disposed between the four side surfaces. A drive magnet 320 may be disposed in the housing 310. For example, the drive magnet 320 may be disposed on each of the four sides of the housing 310. As another example, the driving magnet 320 may be disposed at each of the four corners of the housing 310. At least a part of the outer circumferential surface of the housing 310 may be formed in a shape corresponding to the inner circumferential surface of the cover member 100. In particular, the outer circumferential surface of the housing 310 may be formed in a shape corresponding to the inner circumferential surface of the side plate 102 of the cover member 100. The housing 310 may be formed of an insulating material. The housing 310 may be formed of a material different from that of the cover member 100. The housing 310 may be formed of an injection molding material in consideration of productivity. The outer side surface of the housing 310 may be spaced apart from the inner side surface of the side plate 102 of the cover member 100. In a spaced-apart space between the housing 310 and the cover member 100, the housing 310 can be moved for OIS driving. An upper elastic member 510 may be coupled to the upper portion of the housing 310. A lower elastic member 520 may be coupled to the lower portion of the housing 310.

The housing 310 may include first through fourth sides 301, 302, 303, and 304. The housing 310 may include first to fourth sides 301, 302, 303, 304 formed between the first to fourth corner portions 305, 306, 307, 308. The first side portion 301 and the third side portion 303 may be disposed opposite to each other. The second side 302 and the fourth side 304 may be disposed opposite each other. The first side 301 may be adjacent to the fourth side 304 and the second side 302. The second side 302 may be adjacent to the first side 301 and the third side 303. The third side 303 may be adjacent to the second side 302 and the fourth side 304. The fourth side 304 may be adjacent to the third side 303 and the first side 301.

The housing 310 may include first to fourth corner portions 305, 306, 307, and 308. The housing 310 may include first to fourth corner portions 305, 306, 307, and 308 formed between the first to fourth sides 301, 302, 303, The first corner portion 305 and the third corner portion 307 may be disposed opposite to each other. The second corner portion 306 and the fourth corner portion 308 may be disposed opposite to each other.

The housing 310 may include a through hole 311, a driving portion coupling portion 312, and an upper coupling portion 313. The housing 310 may include a lower coupling portion. The housing 310 may include an inclined groove 315. The housing 310 may include a damper groove 330. The housing 310 may include a pocket portion 340. In the housing 310, the through hole 311, the driving portion coupling portion 312, the upper coupling portion 313, the lower coupling portion (not shown), the inclined groove 315, the damper groove 330, 340 may be omitted or changed. The housing 310 may further include an upper surface and an outer wall portion 334.

The through hole 311 may be formed in the housing 310. The through hole 311 may be formed on the inner side of the housing 310. The through hole 311 may be formed to penetrate the housing 310 in the vertical direction. The bobbin 210 may be disposed in the through hole 311. The bobbin 210 may be movably disposed in the through hole 311. The through hole 311 may be formed in a shape corresponding to the bobbin 210 at least in part. The inner circumferential surface of the housing 310 forming the through hole 311 may be spaced apart from the outer circumferential surface of the bobbin 210. However, a stopper may be formed on the inner circumferential surface of the housing 310 forming the through hole 311 to protrude inward to mechanically limit the movement of the bobbin 210 in the optical axis direction.

A driving magnet 320 may be coupled to the driving part coupling part 312. The driving portion coupling portion 312 may be formed in the housing 310. The driving portion engaging portion 312 may be formed on the inner peripheral surface of the housing 310. In this case, there is an advantage in that the drive magnet 320 disposed at the drive portion engaging portion 312 is advantageous for electromagnetic interaction with the AF drive coil 220 located inside the drive magnet 320. The driving portion coupling portion 312 may have a bottom open form. In this case, there is an advantage that the drive magnet 320 disposed at the drive portion coupling portion 312 is advantageous for electromagnetic interaction with the OIS drive coil 422 located below the drive magnet 320. The driving portion coupling portion 312 may be formed as a groove formed by recessing the inner peripheral surface of the housing 310 outwardly. At this time, a plurality of the driving portion coupling portions 312 may be provided. Meanwhile, the driving magnet 320 may be accommodated in each of the plurality of driving portion engaging portions 312. For example, the driving portion coupling portion 312 may be divided into four. The driving magnet 320 may be disposed in each of the four driving portion engaging portions 312. For example, the driving portion engaging portion 312 may be formed on a side surface of the housing 310. As another example, the driving portion engaging portion 312 may be formed at a corner of the housing 310.

The upper engagement portion 313 can be engaged with the upper elastic member 510. The upper coupling portion 313 can be engaged with the outer side portion 511 of the upper elastic member 510. The upper coupling portion 313 may protrude upward from the upper surface of the housing 310. For example, the protrusion of the upper coupling portion 313 may be inserted into the groove or the hole of the outer side portion 511 of the upper elastic member 310 to be engaged. At this time, the protrusion of the upper coupling part 313 is inserted into the hole of the outer side part 511 to be thermally fused, so that the upper side elastic member 510 can be fixed between the thermally fused protrusion and the upper surface of the housing 310.

And the lower engaging portion can be engaged with the lower elastic member 520. The lower engaging portion can be engaged with the outer side portion 521 of the lower elastic member 520. [ The lower coupling portion may protrude downward from the lower surface of the housing 310. For example, the protrusion of the lower coupling portion may be inserted and engaged with a groove or a hole of the outer side portion 521 of the lower elastic member 520. At this time, the protrusion of the lower coupling part is inserted into the hole of the outer side part 521 to be thermally welded, so that the lower elastic member 520 can be fixed between the heat-welded projection and the lower surface of the housing 310.

The inclined groove 315 may be formed in a part of the lower surface of the housing 310. The inclined grooves 315 may be formed around the through holes 333. [ Even if the support member 600 is bent through the inclined groove 315, the contact of the support member 600 with the housing 310 can be minimized.

The damper groove 330 may be formed by depressing a portion of the upper surface of the housing 310 facing the lower surface of the leg portion 515 of the upper elastic member 510. A first damper 910 may be disposed in the damper groove 330. The damper groove 330 may form a step with the outer wall portion 334. In this embodiment, the first damper 910 may be injected into the damper groove 330. At this time, the first damper 910 can be injected only into the second recessed surface 332 of the damper groove 330. Or the first damper 910 may be injected into both the first recessed surface 331 and the second recessed surface 332 of the damper groove 330.

The damper groove 330 may be disposed at a portion of the upper surface of the housing 310 corresponding to the leg portion 515 and the engaging portion 514 of the upper elastic member 510. A first damper 910 may be disposed in the damper groove 330.

In the damper groove 330 shown in FIG. 13, only one wire which is a divisional structure of the support member 600 can be disposed. The damper groove 330 may include a first groove corresponding to the leg portion 515 of the upper elastic member 510 and a second groove corresponding to the engagement portion 514 of the upper elastic member 510. The first groove may include a first recessed surface 331 as shown in FIG. The second groove may include a second recessed surface 332 as shown in FIG. The first groove may be connected to the second groove. The length from the upper surface of the outer wall portion 334 to the bottom of the second groove (second recessed surface 332) is longer than the length from the upper surface of the outer wall portion 334 to the bottom of the first groove (first recessed surface 331) May be longer than the length. A portion of the outer wall portion 334 of the housing 310 may form a first sidewall of the first groove and the second groove.

The damper groove 330 may further include a third groove connected to the second groove. The third groove may include a first recessed surface 331 as shown in FIG. As shown in FIG. 13, a second groove may be disposed between the first groove and the third groove. The bottom surface of the first groove (the first depressed surface 331) and the bottom surface of the third groove (the first depressed surface 331) may be disposed on both sides of the second groove. A portion of the outer wall portion 334 of the housing 310 may form a second groove and a second sidewall of the third groove.

That is, a portion of the outer wall portion 334 of the housing 310 may include a first sidewall and a second sidewall of the first groove, the second groove, and the third groove. The first groove and the second groove may be disposed above the third groove. On the other hand, at least one of the first sidewall and the second sidewall may include a fourth groove (needle injection groove 335). The fourth groove may be disposed between the first groove and the second groove, and / or between the second groove and the third groove.

In the damper groove 330 shown in FIG. 14, two wires, which are the constituent elements of the support member 600, may be disposed. 14, the damper groove 330 includes a first groove disposed in the second engaging portion 5022, a second groove disposed in the third engaging portion 5023, and a second groove disposed in the second engaging portion 5023, As shown in FIG. A portion of the outer wall portion 334 of the housing 310 may form a first sidewall of the first groove and the second groove and a second sidewall of the second groove and the third groove. That is, the outer wall portion 334 may include a first sidewall and a second sidewall formed to surround the first groove, the second groove, and the third groove.

In this embodiment, the distance between the cover member 100 and the upper stopper of the housing 310 may be 80 mu m. At this time, the distance between the leg portion 515 of the upper elastic member 510 and the first recessed surface 331 of the housing 310 may be 200 μm. Further, the distance between the cover member 100 and the upper stopper of the housing 310 may be 70 to 90 占 퐉. At this time, the distance between the leg portion 515 of the upper elastic member 510 and the first recessed surface 331 of the housing 310 may be 190 to 210 μm. The distance between the leg portion 515 of the upper elastic member 510 and the first recessed surface 331 of the housing 310 may be 1.5 to 4 times the distance between the cover member 100 and the upper stopper of the housing 310 have. The distance between the leg portion 515 of the upper elastic member 510 and the first recessed surface 331 of the housing 310 may be 2 to 3 times the distance between the cover member 100 and the upper stopper of the housing 310 have. The distance between the leg portion 515 of the upper elastic member 510 and the first recessed surface 331 of the housing 310 may be 2.5 times the distance between the cover member 100 and the upper stopper of the housing 310.

The damper groove 330 may include a first damper groove 330a and a second damper groove 330b. The first damper groove 330a may be formed in the first corner portion 305 and the third corner portion 307, respectively. The second damper groove 330b may be formed in the second corner portion 306 and the fourth corner portion 308, respectively.

The damper groove 330 includes a first recessed surface 331, a second recessed surface 332, a through hole 333, an outer wall portion 334, a needle injection groove 335, a first projection 336, A protrusion 337, a third protrusion 338, and a fourth protrusion 339. In the damper groove 330, the first recessed surface 331, the second recessed surface 332, the through hole 333, the outer wall portion 334, the needle injection groove 335, the first protrusion 336, Any one or more of the second protrusion 337, the third protrusion 338 and the fourth protrusion 339 may be omitted or changed.

The first recessed surface 331 may be recessed from the upper surface of the housing 310 and formed below the upper surface of the housing 310.

The second concave surface 332 may be formed below the first concave surface 331 by being recessed from the first concave surface 331.

The through hole 333 can penetrate the second concave surface 332. The support member 600 can pass through the through hole 333. [

The outer wall portion 334 may be formed by extending the upper surface of the housing 310 along the outer periphery of the housing 310. The outer wall portion 334 may form a step with the damper groove 330.

The needle injection groove 335 may be formed by recessing a part of the outer wall portion 334. A needle for injecting the first damper 910 can pass through the needle injection groove 335. [

The first protrusion 336 may protrude from the upper surface of the outer wall 334 at the outer end of the corner of the housing 310. The first projection 336 can prevent the first damper 910 from overflowing to the outside. The first protrusion 336 may function as an upper stopper of the housing 310 when the height of the second protrusion 337 is equal to or greater than the height of the second protrusion 337. [

The second protrusion 337 may protrude from the upper surface of the housing 310. The second projection 337 may be formed between the first damper groove 330a and the through-hole 311. The second projection 337 can function as an upper stopper for limiting the upper limit of the movable distance of the housing 310. [ That is, when the housing 310 moves upward, the second protrusion 337 may collide against the top plate 101 of the cover member 100 to restrict further movement. The upper surface of the second projection 337 may be formed on the upper side of the upper surface of the third projection 338.

The third protrusion 338 may protrude from the upper surface of the housing 310. The third protrusion 338 may be formed between the first damper groove 330a and the second protrusion 337. The upper surface of the third projection 338 may be formed below the upper surface of the second projection 337. That is, the third projection 338 and the second projection 337 can form a step. With such a stepped structure, the first damper 910 accommodated in the first damper groove 330a can be prevented from flowing into the upper surface of the second protrusion 337. [

In this embodiment, the housing 310 may have a four-level step structure at the top. The second recessed surface 332 may form a step with the first recessed surface 331. The first recessed surface 331 may form a step with the upper surface of the housing 310. The upper surface of the housing 310 may form a step with the upper surface of the third projection 338. The upper surface of the third projection 338 may form a step with the upper surface of the second projection 337.

The fourth protrusion 339 may protrude from the first recessed surface 331 of the second damper groove 330b. The fourth protrusion 339 may be formed between the second recessed surface 332 of the second damper groove 330b and the through hole 311. [ The height of the upper surface of the fourth protrusion 339 may correspond to the height of the upper surface of the second protrusion 337. That is, the fourth projection 339 can function as an upper stopper that limits the upper limit of the movable distance of the housing 310. [

The pocket portion 340 may be formed by recessing a portion of the upper surface of the housing 310 which overlaps with a coupling member for coupling the substrate 720 and the upper elastic member 510 in the optical axis direction. At least a portion of the substrate 720 may be received in the pocket portion 340. The pocket portion 340 may be formed between the inner wall portion 341 and the outer wall portion 342 of the housing 310. The pocket portion 340 may be formed to have a width corresponding to the width of the substrate 720. Or the width of the pocket portion 340 may be greater than the width of the substrate 720. The substrate 720 may be inserted into the pocket portion 340.

In this embodiment, a solder cream may be applied to the joint portion to join the substrate 720 and the upper elastic member 510, and solder may be performed by applying hot air from above. In this process, even if a flux is generated in the solder cream, the flux is scattered downward by the hot air applied from the upper side, and the flux is finally received in the pocket portion 340. That is, the pocket portion 340 may serve as a trap for collecting the solder ball. In this embodiment, since the flux is not scattered in all directions, defects due to the generation of foreign substances in the solder can be minimized.

In this embodiment, an adhesive (bond) for coupling the substrate 720 and the housing 310 to the pocket portion 340 may be received. With such a structure, it may not overflow when the adhesive bonding between the substrate 720 and the housing 310 is applied.

In this embodiment, an adhesive (bond) can be applied to the solder portion of the substrate 720 and the upper elastic member 510 after brazing and the upper side of the pocket portion 430. As a result, the solder ball collected in the pocket portion 430 can be prevented from escaping to the outside.

The pocket portion 340 may be provided with a substrate 720. At this time, a part of the substrate 720 may be received in the pocket portion 340 so that only the terminal portion of the substrate 720 protrudes from the upper surface of the housing 310.

The pocket portion 340 can overlap the coupling member in the direction of the optical axis. With such a structure, the pocket portion 340 can receive the engagement member falling downward into the pocket portion 340. The coupling member may include solder. At least a portion of the solder may be received in pocket portion 340. An adhesive may be applied to the upper side of the solder. The pocket portion 340 may receive at least a portion of the adhesive that joins the substrate 720 and the housing 310.

The pocket portion 340 may include a first pocket portion and a second pocket portion disposed below the first pocket portion. At this time, the opening of the first pocket portion may be disposed on the upper surface of the housing 310. The major axis length of the first pocket portion may be longer than the major axis length of the second pocket portion. At this time, the direction of the long axis at the major axis length may be a direction connecting the two neighboring sides of the housing 310 diagonally in the horizontal direction. With this feature, the first bottom surface 343 can be formed parallel to the boundary between the first pocket portion and the second pocket portion.

The first pocket portion includes a first wall (inner wall portion 341) and a second wall (outer wall portion 342) disposed opposite one another, a third wall disposed opposite one another between the first wall and the second wall, A fourth wall, a first bottom surface 343, and an opening. Through such a structure, the first pocket portion can be formed as an upper open groove. The second pocket portion includes a first wall (inner wall portion 341) and a second wall (outer wall portion 342) disposed opposite one another, a fifth wall disposed opposite one another between the first wall and the second wall, A sixth wall, a second bottom surface 344, and an opening. The opening of the second pocket portion may be disposed on the bottom surface of the first pocket portion.

Alternatively, the second pocket portion may have a fifth wall and a sixth wall arranged opposite to each other, a seventh wall and an eighth wall arranged opposite to each other between the fifth wall and the sixth wall, An opening 344 and an opening.

The major axis length of the second pocket portion may be 50 to 80% of the major axis length of the first pocket portion. In addition, the major axis length of the second pocket portion may be 60 to 70% of the major axis length of the first pocket portion. The depth of the second pocket portion in the optical axis direction can correspond to the depth of the first pocket portion in the optical axis direction. The depth of the second pocket portion in the optical axis direction may be 110 to 150% of the depth in the optical axis direction of the first pocket portion. The depth of the second pocket portion in the optical axis direction may be 120 to 140% of the depth in the optical axis direction of the first pocket portion. The width of the second pocket portion in the direction perpendicular to the long axis direction and the optical axis direction may correspond to the width of the first pocket portion. The width of the second pocket portion may be 70 to 130% of the width of the first pocket portion. The width of the second pocket portion may be 90 to 110% of the width of the first pocket portion. The second pocket portion may be connected to the first pocket portion. The second pocket portion may be disposed below the first pocket portion. The second pocket portion may be disposed below the center of the first pocket portion.

The pocket portion 340 may include a first bottom surface 343 and a second bottom surface 344. The pocket portion 340 may further include an inner wall portion 341 and an outer wall portion 342 surrounding the first bottom surface 343 and the second bottom surface 344. The inner wall portion 341 of the pocket portion 340 may further include a sensor receiving groove 345. The bottom surface of the sensor receiving groove 345 may be the sensor supporting surface 346. The outer wall portion 342 of the pocket portion 340 may include a first groove 347 and / or a second groove 348. In the pocket portion 340, the inner wall portion 341, the outer wall portion 342, the first bottom surface 343, the second bottom surface 344, the sensor receiving groove 345, the sensor supporting surface 346, The inner wall portion 341 may be referred to as a 'first wall' and the outer wall portion 342 may be referred to as a 'second wall' Wall '. The pocket portion 340 may include a first wall and a second wall. At this time, the substrate 720 may be coupled to the first wall and be spaced apart from the second wall. The first wall may be disposed closer to the optical axis than the second wall. The thickness of the first wall may correspond to the thickness of the sensor 710. The thickness of the first wall may be greater than the thickness of the sensor 710. The thickness of the first wall may be less than the thickness of the sensor 710. The second wall may include a first groove 347 and a second groove 348. In this embodiment, the substrate 720 may be disposed on the outer surface of the first wall (inner wall portion 341). However, as a variant, the substrate 720 may be disposed on the inner surface of the first wall. In this case, the substrate 720 is disposed outside the pocket portion 340. However, even in this case, the pocket portion 340 can function as a groove for collecting solder balls. Further, the pocket portion 340 may be disposed on the upper surface of the inner wall portion 341. At this time, the pocket portion 340 may be formed to correspond to the shape of at least a part of the upper elastic member 510. The depth of the pocket portion 340 in the direction of the optical axis may also be formed to correspond to the thickness of the upper elastic member 510. In this case, a large amount of solder balls connecting the substrate 720 and the upper elastic member 510 is disposed on the upper surface of the upper elastic member 510, and only a small amount of the solder ball is held between the pocket portion 340 and the upper elastic member 510 Can be introduced.

A pocket portion 340 may be formed between the inner wall portion 341 and the outer wall portion 342. The inner surface of the substrate 720 may be supported on the inner wall portion 341. The outer wall portion 342 may be spaced apart from the substrate 720. The first bottom surface 343 may be formed below the upper surface of the housing 310. [ The first bottom surface 343 may be formed on both sides of the second bottom surface 344. The second bottom surface 344 may be formed below the first bottom surface 343. The lower surface of the substrate 720 may be in contact with the first bottom surface 343. The second bottom surface 344 may be spaced apart from the lower surface of the substrate 720. At least a portion of the adhesive bonding the substrate 720 to the housing 310 may be received in the stepped space defined by the first bottom surface 343 and the second bottom surface 344. [

The sensor receiving groove 345 may be formed by recessing a part of the upper surface of the inner wall portion 341. The sensor receiving recess 345 may receive at least a portion of the first sensor 710. The sensor receiving groove 345 may include a sensor supporting surface 346 for supporting the lower surface of the first sensor 710. The sensor support surface 346 can support the lower surface of the first sensor 710. With such a structure, the first sensor 710 can be accurately assembled to the correct position on the z-axis in the assembling process.

The first groove 347 and the second groove 348 may be formed by recessing a part of the inner surface of the outer wall 342. The first groove 347 and the second groove 348 may be spaced apart from each other. The first groove 347 and the second groove 348 may be formed in corresponding shapes. The first groove 347 and the second groove 348 may receive solder balls and / or adhesives. Further, the phenomenon that the solder ball and / or adhesive collected in the pocket portion 430 are dropped out of the pocket portion 430 through the groove structure of the first groove 347 and the second groove 348 can be minimized .

The drive magnet 320 may be disposed in the housing 310. The drive magnet 320 may be disposed outside the AF drive coil 220. [ The driving magnet 320 can be opposed to the AF driving coil 220. The drive magnet 320 may be electromagnetically interacted with the AF drive coil 220. The drive magnet 320 may be disposed on the upper side of the OIS drive coil 422. The drive magnet 320 can be opposed to the OIS drive coil 422. The drive magnet 320 can be electromagnetically interacted with the OIS drive coil 422. The drive magnet 320 can be commonly used for the autofocus function and the shake prevention function. However, the driving magnet 320 may include a plurality of magnets separately used for the autofocus function and the shake prevention function. For example, the drive magnet 320 may be disposed on the side of the housing 310. At this time, the driving magnet 320 may be a flat plate magnet. The driving magnet 320 may have a flat plate shape. As another example, the driving magnet 320 may be disposed at the corner of the housing 310. [ At this time, the driving magnet 320 may be a corner magnet. The driving magnet 320 may have a hexahedral shape whose inner side surface is wider than the outer side surface.

The drive magnet 320 may include a plurality of magnets that are spaced apart from each other. The drive magnet 320 may include four magnets that are spaced apart from each other. At this time, the four magnets may be disposed in the housing 310 such that two neighboring magnets form a 90 DEG angle with each other. That is, the driving magnets 320 may be equally spaced on four sides of the housing 310. In this case, the internal volume of the housing 310 can be efficiently used. In addition, the driving magnet 320 may be bonded to the housing 310 with an adhesive.

In this embodiment, the driving magnet 320 may be coupled to the housing 310 by an adhesive. At this time, the housing 310 may include an adhesive injection hole that penetrates the housing 310. When the adhesive is injected into the adhesive injection hole, the adhesive may flow between the drive magnet 320 and the housing 310, between the drive magnet 320 and the yoke 750, and between the yoke 750 and the housing 310 .

The stator 400 may be disposed on the lower side of the housing 310. The stator 400 may be disposed on the lower side of the second mover 300. The stator 400 may be opposed to the second mover 300. The stator 400 can movably support the second mover 300. The stator 400 can move the second mover 300. [ At this time, the first mover 200 can move with the second mover 300 as well.

The stator 400 may include a substrate 410, a circuit member 420, and a base 430. However, at least one of the substrate 410, the circuit member 420, and the base 430 may be omitted or changed in the stator 400.

The substrate 410 may supply power to the OIS drive coil 422. The substrate 410 may be coupled to the circuit member 420. The substrate 410 may be coupled to a printed circuit board disposed below the base 430. The substrate 410 may be disposed on the lower surface of the circuit member 420. The substrate 410 may be disposed on the upper surface of the base 430. The substrate 410 may be disposed between the circuit member 420 and the base 430. The substrate 410 may include a circuit member 420 having an OIS drive coil 422 disposed opposite the drive magnet 320 between the housing 310 and the base 430.

The substrate 410 may include a flexible printed circuit board (FPCB). The substrate 410 may be partly bent. The substrate 410 can supply power to the AF drive coil 220. [ For example, the substrate 410 can supply power to the AF driving coil 220 through the supporting member 600 and the upper elastic member 510. The substrate 410 may supply power to the substrate 720 of the first sensing unit 700 through the supporting member 600 and the upper elastic member 510. The power supplied to the substrate 720 may be used to drive the first sensor 710. [

The substrate 410 may include an opening 411, a terminal portion 412, and a reinforcing portion 413. However, any one or more of the openings 411, the terminal portions 412, and the reinforcing portions 413 may be omitted or changed in the substrate 410.

The opening 411 may be formed in the substrate 410. The opening 411 may be formed at the center of the substrate 410. The opening 411 may be formed to penetrate the substrate 410. The opening 411 can pass light that has passed through the lens module. The opening 411 may be formed in a circular shape. However, the shape of the opening 411 is not limited thereto.

The terminal portion 412 may be formed on the substrate 410. The terminal portion 412 may be formed by bending a part of the substrate 410 downward. At least a part of the terminal portion 412 may be exposed to the outside. The terminal portion 412 may be coupled to a printed circuit board disposed below the base 430 by soldering. The lower end of the terminal portion 412 can be in direct contact with the printed circuit board. The terminal portion 412 may be disposed on the outer surface of the base 430. The terminal portion 412 may be disposed at the terminal fitting portion 434 of the base 430. [

The terminal portion 412 may include a first terminal portion 412a and a second terminal portion 412b. The terminal portion 412 may include a first terminal portion 412a disposed on one outer surface of the base 430 and a second terminal portion 412b disposed on the other outer surface formed on the opposite side of one outer surface of the base 430 have. The first terminal portion 412a may be disposed between the first protrusion 441 and the second protrusion 442. The second terminal portion 412b may be disposed between the third protrusion 443 and the fourth protrusion 444.

The reinforcing portion 413 may be formed to reinforce the strength of the corner portion of the substrate 410. At this time, the circuit member 420 may be omitted from the corner portion. Alternatively, the reinforcing portion 413 may be omitted and the circuit member 420 may extend to the corner portion. At this time, the circuit member 420 may include a through hole through which the supporting member 600 passes. The reinforcing portion 413 may be formed by PSR (Photo Imageable Solder Resist) coating. The reinforcing portion 413 can function as a stiffener. The reinforcing portion 413 can be formed by the invariable ink.

The circuit member 420 may be disposed on the base 430. The circuit member 420 may be disposed on the substrate 410. The circuit member 420 may be disposed on the upper surface of the substrate 410. The circuit member 420 may be disposed below the drive magnet 320. The circuit member 420 may be disposed between the driving magnet 320 and the base 430. A supporting member 600 may be coupled to the circuit member 420. The circuit member 420 can movably support the second mover 300. [

The circuit member 420 may include a substrate portion 421 and an OIS drive coil 422. However, any one or more of the substrate portion 421 and the OIS drive coil 422 may be omitted or changed.

The substrate portion 421 may be a circuit substrate. The substrate portion 421 may be an FPCB. An OIS drive coil 422 may be integrally formed on the substrate portion 421. A support member 600 may be coupled to the substrate portion 421. The substrate portion 421 may be formed with a hole through which the support member 600 passes. The lower surface of the substrate portion 421 and the lower end of the support member 600 can be coupled by soldering. The substrate portion 421 may have an opening. The substrate portion 421 may be provided with an opening through the substrate portion 421. The opening of the substrate portion 421 may be formed to correspond to the opening portion 411 of the substrate 410.

The OIS drive coil 422 can be opposed to the drive magnet 320. In this case, when a current is supplied to the OIS drive coil 422 to form a magnetic field around the OIS drive coil 422, the drive magnet 421 is driven by the electromagnetic interaction between the OIS drive coil 422 and the drive magnet 320 320 can move with respect to the OIS drive coil 422. The OIS drive coil 422 may be electromagnetically interacted with the drive magnet 320. The OIS drive coil 422 can move the housing 310 and the bobbin 210 in a direction perpendicular to the optical axis with respect to the base 430 through an electromagnetic interaction with the drive magnet 320. [ The OIS drive coil 422 may include at least one coil. The OIS drive coil 422 may be a fine pattern coil (FP pattern coil) formed integrally with the substrate portion 421. The OIS drive coils 422 may include a plurality of coils spaced from one another. The OIS drive coil 422 may include four coils spaced apart from one another. At this time, the four coils may be disposed on the substrate portion 421 such that two neighboring coils form an angle of 90 ° with respect to each other. On the other hand, the four coils can be separately controlled. The OIS drive coil 422 can be sequentially supplied with power through the printed circuit board, the substrate 410, and the substrate unit 421.

The base 430 may be disposed on the lower side of the housing 310. The base 430 may be disposed between the printed circuit board and the housing 310. The base 430 may be disposed on the lower surface of the substrate 410. The substrate 410 may be disposed on the upper surface of the base 430. The circuit member 420 may be disposed on the base 430. The base 430 may be engaged with the cover member 100. The base 430 may be disposed on the upper surface of the printed circuit board. However, a separate holder member may be disposed between the base 430 and the printed circuit board. The base 430 may function as a sensor holder for protecting an image sensor mounted on a printed circuit board.

In this embodiment, the base 430 may be directly active aligned on the top surface of the printed circuit board. That is, the optical axis alignment of the lens driving device and the image sensor can be performed in the process of bonding the base 430 to the printed circuit board.

The base 430 includes a through hole 431, a foreign matter collecting portion 432, a sensor coupling portion 433, a terminal coupling portion 434, a step portion 435, an opening portion 436, a filter coupling surface 437, A gas exhaust groove 438 and a device receiving groove 439. [ The base 430 may include a first protrusion 441, a second protrusion 442, a third protrusion 443, a fourth protrusion 444, and a protrusion 445. In the base 430, the through hole 431, the foreign matter collecting part 432, the sensor coupling part 433, the terminal coupling part 434, the stepped part 435, the opening part 436, the filter coupling surface 437 , The gas exhaust groove 438, the element receiving groove 439, the first protrusion 441, the second protrusion 442, the third protrusion 443, the fourth protrusion 444, and the protrusion 445 One or more may be omitted or changed.

The through hole 431 may be formed in the base 430. The through hole 431 may be formed to penetrate the base 430 in the up and down direction. An infrared filter may be disposed in the through hole 431. However, the infrared filter may be coupled to a separate holder member disposed under the base 430. Light passing through the lens module through the through hole 431 can be incident on the image sensor. That is, the light having passed through the lens module can be incident on the image sensor through the opening of the circuit member 420, the opening 411 of the substrate 410, and the through hole 431 of the base 430. The through hole 431 may be formed to have a circular shape. However, the shape of the through hole 431 is not limited thereto.

The foreign matter collecting unit 432 can collect foreign matter introduced into the lens driving apparatus. The foreign matter collecting part 432 may include a groove formed by sinking the upper surface of the base 430 downward and an adhesive part disposed in the groove. The adhesive portion may comprise an adhesive material. The foreign matter introduced into the lens driving device can be adhered to the bonding portion.

The second sensor 800 may be disposed at the sensor coupling portion 433. [ The sensor engaging portion 433 can accommodate at least a part of the second sensor 800. The sensor coupling portion 433 may be formed as a groove formed by sinking the upper surface of the base 430 downward. The sensor coupling portion 433 may be disposed apart from the foreign matter collecting portion 432. The sensor coupling portion 433 may be formed with a plurality of grooves. For example, the sensor coupling portion 433 may be formed with two grooves. At this time, the second sensor 800 may be disposed in each of the two grooves.

A terminal portion 412 of the substrate 410 may be disposed on the terminal fitting portion 434. The terminal fitting portion 434 may be formed as a groove formed by a part of one side surface of the base 430 being recessed inward. At this time, at least a part of the terminal portion 412 of the substrate 410 may be received in the terminal fitting portion 434. The width of the terminal fitting portion 434 may be formed to correspond to the width of the terminal portion 412 of the substrate 410. The length of the terminal fitting portion 434 may be formed to correspond to the length of the terminal portion 412 of the substrate 410.

The stepped portion 435 may be formed on the side surface of the base 430. The stepped portion 435 may protrude from the outer surface of the base 430. The stepped portion 435 can be formed around the outer peripheral surface of the base 430. The stepped portion 435 may be formed by recessing the upper portion of the side surface of the base 430. Alternatively, the stepped portion 435 may be formed by protruding a lower portion of the side surface of the base 430. The stepped portion 435 can support the lower end of the side plate 102 of the cover member 100. The upper surface of the stepped portion 435 may be formed below the upper surface of the first to fourth projections 441, 442, 443, and 444. [

The opening 436 may be formed such that a portion where the substrate 410 and the supporting member 600 are coupled open. The opening 436 may be formed with a protrusion 445 protruding from the base 430 and supporting the inner surface of the cover member 100. The openings 436 may include first to fourth openings 436a, 436b, 436c, and 436d formed at four corners of the base 430. [ The first support portion 601 may be disposed in the first opening 436a. The second and third support portions 602 and 603 may be disposed in the second opening 436b. The fourth support portion 604 may be disposed in the third opening 436c. The fifth and sixth support portions 605 and 606 may be disposed in the fourth opening 436d.

In this embodiment, protrusions 445 may be formed in the first and third openings 436a and 436c. However, the protrusions 445 may not be formed in the second and fourth openings 436b and 436d, or a part of the protrusions 445 formed in the first and third openings 436a and 436c may be omitted. have. Only one support portion is disposed on the first and third openings 436a and 436c and two support portions are provided on the second and fourth openings 436b and 436d. Therefore, much space is required to couple the supporting portion and the substrate 410 in the second and fourth openings 436b and 436d than in the first and third openings 436a and 436c. That is, in the second and fourth openings 436b and 436d, the protrusion 445 may be omitted or a part of the protrusion 445 may be omitted due to the restriction of the space.

The filter coupling surface 437 may be formed by sinking the lower surface of the base 430. The filter engagement surface 437 may be coupled with a filter. A part of the upper surface of the filter can be joined to the filter coupling surface 437 by an adhesive. There may be an additional stepped surface between the filter mating surface 437 and the bottom surface of the base 430 in this embodiment. At this time, a wire connecting the printed circuit board and the image sensor can be accommodated in the stepped space formed by the stepped surface.

The gas exhaust grooves 438 may be recessed in the filter engagement surface 437. The plurality of gas exhaust grooves 438 may be formed. The gas can be exhausted through the gas exhaust groove 438. [ The gas generated in the process of joining the image sensor to the printed circuit board, the process of joining the base 430 to the printed circuit board, and the like can be discharged through the gas exhaust groove 438. [

The element receiving groove 439 may be formed by recessing a part of the lower surface of the base 430. The element receiving groove 439 may be formed outside the filter engagement surface 437 and away from the filter engagement surface 437. The element receiving grooves 439 may be formed in plural. The number of element receiving grooves 439 may be four. The element receiving groove 439 can provide a space for accommodating the element mounted on the upper surface of the printed circuit board.

The first protrusion 441 and the second protrusion 442 may be spaced apart from each other. The first protrusion 441 may protrude from the outer surface of the base 430. The first projection 441 may be spaced apart from the second projection 442. The first protrusion 441 can support the recessed surface 121 and the first connection surface. The first protrusion 441 can contact the recessed surface 121 and the first connection surface. The first projection 441 may include an upper surface that contacts the recessed surface 121. The first protrusion 441 may include a first side contacting the first connection surface of the depression 120. The first protrusion 441 may include a third side contacting the side surface of the terminal portion 412. [ However, the third side surface of the first projection 441 may be spaced apart from the side surface of the terminal portion 412 without contacting the side surface. The third side face of the first projection 441 can be opposed to the side face of the terminal portion 412. The first protrusion 441 may be disposed between the side surface of the first terminal portion 412a and the first connecting surface of the first depression 120a.

The second protrusion 442 may protrude from the outer surface of the base 430. The second projection 442 may be spaced apart from the first projection 441. [ The second protrusion 442 can support the recessed surface 121 and the second connection surface. The second protrusion 442 can contact the recessed surface 121 and the second connection surface. The second projection 442 may include an upper surface in contact with the recessed surface 121. The second protrusion 442 may include a second side contacting the second connection surface of the depression 120. The second projection 442 may include a fourth side that is in contact with a side surface of the terminal portion 412. However, the fourth side surface of the second projection 442 may be spaced apart from the side surface of the terminal portion 412 without contacting the side surface. The fourth side surface of the second projection 442 can face the side surface of the terminal portion 412. [ The second protrusion 442 may be disposed between the side surface of the first terminal portion 412a and the second connecting surface of the first depression 120a.

The first protrusion 441 and the second protrusion 442 may be fitted to the depressed portion 120 of the cover member 100 in this embodiment. That is, the distance between the first connecting surface and the second connecting surface may correspond to the distance between the first side of the first projection 441 and the second side of the second projection 442. Alternatively, the distance between the first connecting surface and the second connecting surface may be smaller than a predetermined size between the first side of the first projection 441 and the second side of the second projection 442.

In this embodiment, the terminal portion 412 of the substrate 410 may be disposed between the first protrusion 441 and the second protrusion 442. At this time, the horizontal length of the outer surface of the terminal portion 412 may correspond to the distance between the third side of the first projection 441 and the fourth side of the second projection 442. However, the length of the outer surface of the terminal portion 412 in the horizontal direction may be smaller than the distance between the third side surface of the first projection 441 and the fourth side surface of the second projection 442.

The third protrusion 443 may be disposed between the side surface of the second terminal portion 412b and the first connecting surface of the second depression 120b. The third projection 443 and the fourth projection 444 may be spaced apart from each other. The third protrusion 443 may protrude from the outer surface of the base 430. The third projection 443 may be spaced apart from the fourth projection 444. [

The fourth protrusion 444 may be disposed between the side surface of the second terminal portion 412b and the second connecting surface of the second depression 120b. The fourth protrusion 444 may protrude from the outer surface of the base 430. The fourth projection 444 may be spaced apart from the third projection 443. [

In this embodiment, the third and fourth protrusions 443 and 444 may be symmetrical with the first and second protrusions 441 and 442. The third and fourth protrusions 443 and 444 may be formed on the opposite sides of the first and second protrusions 441 and 442. The third and fourth protrusions 443 and 444 may be formed in a shape corresponding to the first and second protrusions 441 and 442. In this embodiment, since the cover member 100 is supported by the first to fourth protrusions 441, 442, 443, and 444, the rotation of the cover member 100 can be prevented. However, even if the third and fourth protrusions 443 and 444 are omitted, rotation of the cover member 100 by the first and second protrusions 441 and 442 can be prevented. Likewise, even if the first and second protrusions 441 and 442 are omitted, rotation of the cover member 100 by the third and fourth protrusions 443 and 444 can be prevented.

In this embodiment, the upper surfaces of the first to fourth protrusions 441, 442, 443, and 444 may be formed above the upper surface of the stepped portion 435. The lower surfaces of the first to fourth protrusions 441, 442, 443 and 444 are formed as inclined surfaces connecting the outer surfaces of the first to fourth protrusions 441, 442, 443, and 444 and the outer surface of the base 430 in an inclined manner .

The protrusion 445 may protrude from the base 430. The projecting portion 445 can support the inner surface of the cover member 100. The protrusion 445 may be formed next to the first protrusion 441 and the fourth protrusion 444.

The elastic member 500 may be coupled to the bobbin 210 and the housing 310. The elastic member 500 can elastically support the bobbin 210. The elastic member 500 may have elasticity at least in part. At this time, the elastic member 500 may be referred to as a 'first elastic member'. The elastic member 500 may movably support the bobbin 210. The elastic member 500 can support the bobbin 210 movably in the optical axis direction with respect to the housing 310. That is, the elastic member 500 can support the bobbin 210 to be driven by AF. At this time, the elastic member 500 may be referred to as an 'AF supporting member'.

The elastic member 500 may include an upper elastic member 510 and a lower elastic member 520. However, at least one of the upper elastic member 510 and the lower elastic member 520 in the elastic member 500 may be omitted or changed.

In this embodiment, the upper elastic member 510 may be coupled to the bobbin 210 and the housing 310 by thermal fusion. The lower elastic member 520 may be coupled to the bobbin 210 and the housing 310 by bonding. At this time, the upper elastic member 510 may be first coupled to the bobbin 210 and the housing 310, and the lower elastic member 520 may be coupled later. Protrusions formed on the bobbin 210 and the housing 310 and having a diameter of about 0.4 mm among the protrusions coupled with the elastic member 500 can be used for thermal welding. In addition, protrusions formed on the bobbin 210 and the housing 310 and having a diameter of about 0.26 mm among the protrusions coupled with the elastic member 500 can be used for bonding. In this embodiment, the diameter of the thermal fusion fixing projections may be 0.30 to 0.50 mm. The diameter of the bonding fixing protrusion may be 0.20 to 0.30 mm.

The upper elastic member 510 may be disposed on the upper side of the bobbin 210 and may be coupled to the bobbin 210 and the housing 310. The upper elastic member 510 may be coupled to the bobbin 210 and the housing 310. The upper elastic member 510 may be coupled to the upper portion of the bobbin 210 and the upper portion of the housing 310. The upper elastic member 510 can elastically support the bobbin 210. [ The upper elastic member 510 may have elasticity at least in part. In this case, the upper elastic member 510 may be referred to as an " upper elastic member ". The upper elastic member 510 can movably support the bobbin 210. The upper elastic member 510 can support the bobbin 210 so as to be movable in the direction of the optical axis with respect to the housing 310. The upper elastic member 510 may be formed of a leaf spring.

The upper elastic member 510 may include a plurality of elastic units spaced from each other. The upper elastic member 510 may be formed in a plurality of divisional structures. The upper elastic member 510 may be formed of six elastic units 501, 502, 503, 504, 505, 506 spaced from each other. The upper elastic members 510 may include first to sixth elastic units 501, 502, 503, 504, 505, 506 spaced from each other. At least one of the first through sixth elastic units 501, 502, 503, 504, 505, 506 in the upper elastic member 510 may be omitted or changed.

The upper elastic member 510 includes a first elastic unit 501, a second elastic unit 502, a third elastic unit 503 and a fourth elastic unit 504 which are separated from each other and coupled with the bobbin 210 can do. The first to fourth elastic units 501, 502, 503, and 504 may include first to fourth inner side portions 512 coupled with the bobbin 210, respectively. The first to fourth inner side portions 512 may include at least two holes 5121 and 5122 coupled with the protrusions 2131 and 2132 of the bobbin 210, respectively. The protrusions 2131 and 2132 of the bobbin 210 may include a first protrusion 2131 and a second protrusion 2132 coupled to the inner side portion 512. The inner portion 512 may include a first hole 5121 and a second hole 5122.

Hereinafter, the elastic units 501, 502, 503, 504, 505, and 506 may be referred to as an 'upper elastic unit'. The substrate 720 may include four terminals for supplying external power to the first sensor 710. At this time, the four terminals can be soldered to each of the four upper elastic units. The modification of this embodiment may include four pocket portions 340 disposed at positions corresponding to the four terminals. That is, in the modified example, the pocket portions 340 may be separated into four and disposed at positions corresponding to the four terminals. The substrate 720 may be disposed perpendicular to the upper elastic member 510 and the upper elastic member 510 may further include a groove formed in a portion where the coupling member is disposed.

The first to sixth elastic units 501, 502, 503, 504, 505, 506 may be spaced apart from each other. Accordingly, the first through sixth elastic units 501, 502, 503, 504, 505, and 506 can be used as a conductive line in the lens driving apparatus. The first through sixth elastic units 501, 502, 503, 504, 505, and 506 may be electrically connected to the substrate 410 through the support member 600. The first through fourth elastic units 501, 502, 503, and 504 may be coupled to the substrate 720 of the first sensing unit 700. Accordingly, the first to fourth elastic units 501, 502, 503, and 504 can be electrically connected to the first sensor 710. At this time, the fifth and sixth elastic units 505 and 506 may be electrically connected to the AF driving coil 220. That is, the first to sixth elastic units 501, 502, 503, 504, 505, 506 are used to supply power to the first sensor 710 and the AF drive coil 220 disposed in the housing 310 . The first elastic unit 501 may be electrically connected to the first sensor 710 and the support member 600.

The first elastic unit 501 includes a first outer portion 5011, a second outer portion 5012, a first engaging portion 5013, a first leg portion 5014, a second leg portion 5015, 5016). In the first elastic unit 501, the first outside portion 5011, the second outside portion 5012, the first engaging portion 5013, the first leg portion 5014, the second leg portion 5015, And the terminal portions 5016 may be omitted or changed.

The first outer side 5011 may be coupled to one side of the housing 310. The first outer side 5011 may be coupled to the fourth side 304 of the housing 310. The second outer side 5012 may be coupled to one side of the housing 310 and a side adjacent thereto. The second outer side 5012 may be coupled to the first side 301 of the housing 310. The first engaging portion 5013 can be coupled to the support member 600. The first engaging portion 5013 can be engaged with the first supporting portion 601. The first leg portion 5014 may connect the first outside portion 5011 and the first engaging portion 5013. The second leg portion 5015 may connect the second outside portion 5012 and the first engaging portion 5013.

In this embodiment, the first leg portion 5014 and the second leg portion 5015 may be symmetrical with respect to a virtual plane including the first support portion 601 and the optical axis of the support member 600. With this structure, the tilt generated by the support member 600 and the upper support member 510 when the lens driving apparatus is driven can be improved. Each of the first and second leg portions 5014 and 5015 may be bent twice or more. Each of the first and second leg portions 5014 and 5015 may be bent three or more times. At this time, the bent shapes of the first and second leg portions 5014 and 5015 may also be symmetrical to each other. The first leg portion 5014 and the second leg portion 5015 may be disposed opposite to each other with respect to the first engaging portion 5013.

The first terminal portion 5016 may be coupled to the substrate 720 extending from the second outer portion 5012 and disposed with the first sensor 710. [

The second elastic unit 502 may include a third outer portion 5021, a second engaging portion 5022, and a second terminal portion 5023. The second elastic unit 502 includes a third outer portion 5021 coupled to the housing 310, a second engagement portion 5022 extending from the third outer portion 5021 and coupled to the second support portion 602, And a second terminal portion 5023 extending from the third side portion 5021 and coupled with the substrate 720 on which the first sensor 710 is disposed.

The third elastic unit 503 may include a fourth outer portion 5031, a third engagement portion 5032, and a third terminal portion 5033. The third elastic unit 503 includes a fourth outer portion 5031 coupled to the housing 310, a third engagement portion 5032 extending from the fourth outer portion 5031 and coupled to the third support portion 603, 4 may include a third terminal portion 5033 extending from the outer side portion 5031 and coupled with the substrate 720 on which the first sensor 710 is disposed.

The fourth elastic unit 504 includes a fifth outer side portion 5041, a sixth outer side portion 5042, a fourth engagement portion 5043, a third leg portion 5044, a fourth leg portion 5045, 5046). In the fourth elastic unit 504, the fifth outside portion 5041, the sixth outside portion 5042, the fourth engaging portion 5043, the third leg portion 5044, the fourth leg portion 5045, and the fourth Terminal portions 5046 may be omitted or changed.

The fifth outer side 5041 may be coupled to the second side 302 of the housing 310. The sixth outer side 5042 may be coupled to the third side 303 of the housing 310. The fourth engaging portion 5043 may be coupled to the support member 600. The fourth coupling portion 5043 may be coupled to the fourth support portion 604. The third leg portion 5044 can connect the fifth outside portion 5041 and the fourth engaging portion 5043. The fourth leg portion 5045 may connect the sixth outside portion 5042 and the fourth engaging portion 5043. The fourth terminal portion 5046 may be coupled to the substrate 720 from which the first sensor 710 is disposed and which extends from the fifth outside portion 5041.

The shape of the first outer side portion 5011 of the first elastic unit 501 may be different from the shape of the sixth outer side portion 5042 of the fourth elastic unit 504 in this embodiment. The first outer side 5011 may be coupled with two projections formed on the upper surface of the housing 310. The sixth outer side 5042 may be coupled with one projection formed on the upper surface of the housing 310.

The upper elastic member 510 may include an outer portion 511, a medial portion 512, a connecting portion 513, a fitting portion 514, and a leg portion 515. At least one of the outer side portion 511, the inner side portion 512, the connecting portion 513, the engaging portion 514 and the leg portion 515 of the upper elastic member 510 may be omitted or changed.

The outer portion 511 may be coupled to the housing 310. The outer portion 511 may be coupled to the upper portion of the housing 310. The outer side portion 511 may be engaged with the upper side engaging portion 313 of the housing 310. The outer side portion 511 may include a hole or a groove that is engaged with the upper side engaging portion 313 of the housing 310.

The inner portion 512 may be coupled to the bobbin 210. The inner portion 512 may be coupled to the upper portion of the bobbin 210. The inner side portion 512 can be engaged with the upper side coupling portion 213 of the bobbin 210. The inner side portion 512 may include a hole or a groove which is engaged with the upper side coupling portion 213 of the bobbin 210.

In this embodiment, the upper elastic member 510 may include four inner side portions 512 coupled with the bobbin 210. At this time, the four inner side portions 512 may be rotationally symmetric with respect to the optical axis.

The inner portion 512 may include a first hole 5121, a second hole 5122, and a guide hole 5123. [ However, at least one of the first hole 5121, the second hole 5122, and the guide hole 5123 may be omitted or changed in the inner side portion 512.

The first hole 5121 and the second hole 5122 may be spaced apart from each other. The first hole 5121 may be spaced apart from the second hole 5122. The first protrusion 2131 of the bobbin 210 may be coupled to the first hole 5121. The first hole 5121 may be larger than the second hole 5122. The diameter of the first hole 5121 may be larger than the diameter of the second hole 5122. The first hole 5121 may include a plurality of grooves in which an adhesive is disposed. The first protrusion 2131 may be bonded to the first hole 5121 with an adhesive.

The second hole 5122 may be spaced apart from the first hole 5121. At least a part of the second protrusion 2132 of the bobbin 210 may be accommodated in the second hole 5122. The diameter of the second hole 5122 may be smaller than the diameter of the first hole 5121. The second hole 5122 and the second protrusion 2132 are coupled to each other by the double bond of the first hole 5121 and the first protrusion 2131 and the second hole 5122 and the second protrusion 2132, 512 can be prevented from rotating with respect to the bobbin 210. The second hole 5122 may include a plurality of grooves in which the adhesive is disposed.

The guide hole 5123 may extend from the first hole 5121. A part of the first protrusion 2131 which is thermally fused can be accommodated in the guide hole 5123. With this structure, rotation of the inner side portion 512 with respect to the bobbin 210 can be prevented. The guide holes 5123 may be provided around the first holes 5121 so as to be spaced apart from each other.

The connection portion 513 can connect the outer portion 511 and the inner portion 512. The connection portion 513 can elastically connect the outer side portion 511 and the inner side portion 512. The connection portion 513 may have elasticity. At this time, the connection portion 513 may be referred to as an " elastic portion ". The connection portion 513 may be formed by bending two or more times.

The engaging portion 514 can be engaged with the supporting member 600. The engaging portion 514 may be coupled to the supporting member 600 by soldering. In one example, the engagement portion 514 may include a hole through which the support member 600 passes. As another example, the engagement portion 514 may include a groove to which the support member 600 is coupled. The engaging portion 514 may extend from the lateral portion 511. The engaging portion 514 may extend outward from the outer side portion 511. The engaging portion 514 may include a bent portion formed by bending.

The leg portion 515 can connect the outer portion 511 and the engaging portion 514. A damper groove 330 may be disposed below the leg portion 515. The first damper 910 may be applied to the leg portion 515. [ When the first damper 910 is applied to the leg portion 515, it can be effective to suppress vertical vibration (resonance) of the housing 310.

The connection portion 513 of the upper elastic member 510 may include a damper arrangement portion 530, a first connection portion 540 and a second connection portion 550. At least one of the damper disposing part 530, the first connecting part 540 and the second connecting part 550 may be omitted or changed from the connecting part 513 of the upper elastic member 510. [

A second damper 920 may be disposed in the damper arrangement portion 530. A second damper 920 may be applied to the damper disposing portion 530. The damper arranging portion 530 may be formed in a shape corresponding to the curved surface 2151 of the projection 215. [ The damper arranging portion 530 may be disposed inside the projection 215 away from the curved surface 2151 of the projection 215. [

The first connection portion 540 may connect the damper arrangement portion 530 and the inner side portion 512. The first connection portion 540 may be bent a plurality of times. The first connection portion 540 may include a first inner portion 541 and a second inner portion 542 disposed parallel to each other.

The first connection portion 540 may include first to sixth inner portions 541, 542, 543, 544, 545, and 546. The first inner portion 541 and the second inner portion 542 may be disposed parallel to each other at least in part. The first inner portion 541 and the second inner portion 542 may be bent or curved a plurality of times between the inner side portion 512 and the damper placing portion 530 and arranged to face each other. The first inner portion 541 and the second inner portion 542 may extend in a direction different from the extending direction of the adjacent outer side portion 511. The first inner portion 541 and the second inner portion 542 may extend in a direction different from the longitudinal direction of the first connection portion 540. The third inner portion 543 can connect the damper arrangement portion 530 and the first inner portion 541 in a round manner. Alternatively, the third inner portion 543 may connect the damper placement portion 530 and the first inner portion 541 in an inclined manner. The fourth inner portion 544 may connect the first inner portion 541 and the second inner portion 542 in a round manner. Alternatively, the fourth inner portion 544 can tilt the first inner portion 541 and the second inner portion 542 in an inclined manner. The fifth inner portion 545 may extend from the second inner portion 542. The fifth inner portion 545 may be disposed in a direction perpendicular to the extending direction of the second inner portion 542 at least in part. The sixth inner portion 546 may connect the fifth inner portion 545 and the inner portion 512. The sixth inner portion 546 may form an obtuse angle with the fifth inner portion 545.

In the above description, the first connection unit 540 is divided into six divisional units for convenience of explanation. However, the two divisional units may be understood to be combined into one divisional unit, It can also be understood by dividing it into the above-mentioned classification structure.

The second connection part 550 can connect the damper arrangement part 330 and the outer side part 511. The second connection portion 550 can be bent a plurality of times. The second connection portions 550 may include first to third outer portions 551, 552, and 553 disposed in parallel with each other.

The second connection portion 550 may include first to sixth outer portions 551, 552, 553, 554, 555, and 556. The first to third outer portions 551, 552, and 553 may be disposed in parallel with the outer portion 511 disposed adjacent to each other. The first to third outer portions 551, 552 and 553 may be disposed in the longitudinal direction of the second connection portion 550. The first outer portion 551 may be connected to the damper arrangement portion 330. The fourth outer portion 554 may connect the first outer portion 551 and the second outer portion 552 roundly. Alternatively, the fourth outer portion 554 may connect the first outer portion 551 and the second outer portion 552 in an inclined manner. The fifth outer portion 555 may connect the second outer portion 552 and the third outer portion 553 in a round manner. Alternatively, the fifth outer portion 555 may link the second outer portion 552 and the third outer portion 553 in an inclined manner. The sixth outer portion 556 may connect the third outer portion 553 and the outer portion 551.

In the above description, the second connection unit 550 is divided into six divisional units for convenience of explanation. However, the two divisional units may be understood as a single divisional unit, It can also be understood by dividing it into the above-mentioned classification structure.

The lower elastic member 520 may be disposed below the bobbin 210 and may be coupled to the bobbin 210 and the housing 310. The lower elastic member 520 may be coupled to the bobbin 210 and the housing 310. The lower elastic member 520 may be coupled to the lower portion of the bobbin 210 and the lower portion of the housing 310. The lower elastic member 520 can elastically support the bobbin 210. The lower elastic member 520 may have elasticity at least in part. In this case, the lower elastic member 520 may be referred to as a " lower elastic member ". The lower elastic member 520 is capable of movably supporting the bobbin 210. The lower elastic member 520 can support the bobbin 210 movably in the optical axis direction with respect to the housing 310. The lower elastic member 520 may be formed of a leaf spring. For example, the lower elastic member 520 may be integrally formed.

The lower elastic member 520 may include an outer portion 521, a medial portion 522, and a connection portion 523. However, at least one of the outer side portion 521, the inner side portion 522 and the connecting portion 523 in the lower elastic member 520 may be omitted or changed.

The outer portion 521 may be coupled to the housing 310. The outer portion 521 may be coupled to the lower portion of the housing 310. The outer side portion 521 can be engaged with the lower side engaging portion of the housing 310. The outer side portion 521 may include a hole or a groove that is engaged with the lower side engaging portion of the housing 310.

The inner portion 512 may be coupled to the bobbin 210. The inner portion 512 may be coupled to the upper portion of the bobbin 210. The inner side portion 512 can be engaged with the lower side engaging portion of the bobbin 210. The inner portion 512 may include a hole or groove that engages the lower coupling portion of the bobbin 210.

The connection portion 523 can connect the outer portion 521 and the inner portion 522. The connection portion 523 can elastically connect the outer side portion 521 and the inner side portion 522. The connection portion 523 may have elasticity. At this time, the connection portion 523 may be referred to as an " elastic portion ". The connection portion 523 may be formed by bending two or more times.

The support member 600 is capable of movably supporting the housing 310. The support member 600 can elastically support the housing 310. [ The support member 600 may have elasticity at least in part. At this time, the support member 600 may be referred to as a 'second elastic member'. For example, the support member 600 may support the housing 310 in a direction perpendicular to the optical axis with respect to the stator 400. At this time, the bobbin 210 can move integrally with the housing 310. As another example, the support member 600 may support the housing 310 in a tiltable manner with respect to the stator 400. That is, the support member 600 can support the housing 310 and the bobbin 210 to be OIS driven. At this time, the support member 600 may be referred to as an 'OIS support member'. In one example, the support member 600 may be formed from a wire. As another example, the support member 600 may be formed of a leaf spring.

The support member 600 may be coupled to the upper elastic member 510 and the stator 400. The support member 600 may be combined with the upper elastic member 510 and the substrate 410. The lower end of the support member 600 may be coupled to the substrate 410. The lower end of the support member 600 may be soldered to the lower surface of the substrate 410. Alternatively, the lower end of the support member 600 may be coupled to the base portion 421 of the circuit member 420. The support member 600 may penetrate the base portion 421 of the circuit member 420. The lower end of the support member 600 may be soldered to the lower surface of the base portion 421 of the circuit member 420. The upper end of the support member 600 may be coupled to the engagement portion 514 of the upper elastic member 510. The upper end of the supporting member 600 may penetrate the engaging portion 514 of the upper elastic member 510. The upper end of the supporting member 600 may be soldered to the upper surface of the engaging portion 514 of the upper elastic member 510. Alternatively, the lower end of the support member 600 may be coupled to the base 430. The upper end of the support member 600 may be coupled to the housing 310. The structure of the support member 600 is not limited to the above and may be provided with any structure capable of movably supporting the second mover 300 with respect to the stator 400. [

The support member 600 can be formed in a plurality of divisional configurations. The support member 600 may be formed of six support portions 601, 602, 603, 604, 605, and 606 spaced from each other. The support member 600 may include first to sixth support portions 601, 602, 603, 604, 605, and 606 that are spaced apart from each other. However, any one or more of the first to sixth support portions 601, 602, 603, 604, 605, and 606 in the support member 600 may be omitted or changed. In particular, the support member 600 includes six support portions 601, 602, 603, 604, and 606 to correspond to the first to sixth elastic units 501, 502, 503, 504, 505, and 506 of the upper elastic member 510, 605, and 606, respectively. However, in a modification, the support member 600 may be formed of eight supports in consideration of symmetry. The support member 600 may include first to fourth support portions 601, 602, 603, and 604 coupled to the first to fourth elastic units 501, 502, 503, The support member 600 may include fifth and sixth support portions 605 and 606 coupled in pairs with the fifth and sixth elastic units 505 and 506.

The first to sixth support portions 601, 602, 603, 604, 605, and 606 may be spaced apart from each other. Accordingly, the first to sixth supporting portions 601, 602, 603, 604, 605, and 606 can be used as a conductive line in the lens driving device. The first to sixth supports 601, 602, 603, 604, 605, and 606 may be coupled to the substrate 410. The first to sixth support portions 601, 602, 603, 604, 605, and 606 may be engaged with the upper elastic member 510. That is, the first to sixth support portions 601, 602, 603, 604, 605, and 606 may electrically connect the substrate 410 and the upper elastic member 510. The first support portion 601 may be disposed at the fourth corner portion 308. The second support portion 602 and the third support portion 603 may be disposed at the first corner portion 305. The fourth support portion 604 may be disposed at the second corner portion 506. The fifth support portion 605 and the sixth support portion 606 may be disposed at the third corner portion 307. [

The first sensing unit 700 may be provided for autofocus feedback. The first sensing unit 700 can sense movement of the bobbin 210 in the optical axis direction. The first sensing unit 700 senses the movement amount of the bobbin 210 in the optical axis direction and can provide the control unit in real time.

The first sensing unit 700 may include a first sensor 710, a substrate 720, and a sensing magnet 730. However, in the first sensing unit 700, at least one of the first sensor 710, the substrate 720, and the sensing magnet 730 may be omitted or changed. In addition, the first sensing unit 700 may further include a compensation magnet 740. However, since the compensating magnet 740 is not related to the position sensing of the bobbin 210, the compensating magnet 740 can be described as a separate structure from the first sensing unit 700.

The first sensor 710 may be provided for autofocus feedback. In this case, the first sensor 710 may be referred to as an 'AF feedback sensor'. The first sensor 710 can sense the sensing magnet 730. The first sensor 710 may sense the sensing magnet 730 disposed on the bobbin 210. The first sensor 710 may sense the position of the bobbin 210. The first sensor 710 can sense the movement amount of the bobbin 210 in the optical axis direction. The first sensor 710 may be disposed in the housing 310. The first sensor 710 may be disposed at a corner of the housing 310. The first sensor 710 may be disposed at the first corner 305 of the housing 310. The first sensor 710 may be disposed on the substrate 720. The first sensor 710 may be electrically connected to the substrate 720. The first sensor 710 may be a hall sensor. The first sensor 710 may be a Hall IC (Hall IC). The first sensor 710 can sense the magnetic force of the sensing magnet 730. That is, the first sensor 710 can detect the amount of displacement of the bobbin 210 by detecting a change in the magnetic force that is changed by the movement of the sensing magnet 730 when the bobbin 210 moves.

In this embodiment, the first sensor 710 may be disposed so that the length in the vertical direction of the inner surface of the first sensor 710 is longer than the length in the horizontal direction. That is, the first sensor 710 may be disposed in a raised state. In this state, the lower surface of the first sensor 710 can be supported by the housing 310. Thus, in the product assembly process, the first sensor 710 can be fixed in position in the z-axis direction. Alternatively, the first sensor 710 may be arranged so that the length in the horizontal direction of the inner surface of the first sensor 710 is longer than the length in the vertical direction. That is, the first sensor 710 may be disposed in a lying state. In this case, however, the lower surface of the first sensor 710 can not be in surface contact with the housing 310 due to the solder ball joining the first sensor 710 and the substrate 720. When the first sensor 710 determines that the assembly tolerance in the z-axis direction should be precisely controlled as an AF feedback sensor, the assembly tolerance in the z-axis direction is more precisely controlled in the present embodiment .

In this embodiment, the first sensor 710 may be a hall sensor. At this time, the hall sensor may be provided with four terminals. More specifically, the hall sensor may be provided with four terminals: input (+) (-) and output (+) (-). At this time, the Hall sensor and the substrate 720 can be coupled by four solders, and two solders can be disposed on both sides using the wide side. Therefore, when the Hall sensor is in a state where the Hall sensor is in a non-mounted state, the solder first contacts the housing 310 rather than the bottom surface of the hall sensor, and therefore, it is difficult to precisely assemble the Hall sensor in a state in which the Hall sensor is in a turned-on state.

The substrate 720 may be disposed in the housing 310. The substrate 720 may be coupled to the first sensor 710. The substrate 720 may be electrically connected to the first sensor 710. The substrate 720 can be engaged with the upper elastic member 510. The substrate 720 may be electrically connected to the substrate 410 through the upper elastic member 510 and the support member 600. The substrate 720 may be coupled to the first terminal portion 5016, the second terminal portion 5023, the third terminal portion 5033, and the fourth terminal portion 5046 of the upper elastic member 510. The substrate 720 may be electrically connected to the first through fourth elastic units 501, 502, 503, and 504 of the upper elastic member 510. The substrate 720 may include four terminals coupled with the first through fourth elastic units 501, 502, 503, and 504 of the upper elastic member 510. The substrate 720 and the upper elastic member 510 can be coupled by soldering. The upper surface of the substrate 720 is engaged with the first to fourth elastic units 501, 502, 503 and 504 of the upper elastic member 510 and the lower surface of the substrate 720 is coupled with the first sensor 710 have. The substrate 720 may overlap the pocket portion 340 in a direction perpendicular to the optical axis direction.

In this embodiment, the substrate 720 may be disposed so that the surface on which the first sensor 710 is disposed faces the sensing magnet 730. That is, the substrate 720 may be disposed on the housing 310 in a raised form. Therefore, the first sensor 710 disposed on the substrate 720 also faces the sensing magnet 730. In this case, the hole output value of the sensing magnet 730 sensed by the first sensor 710 becomes higher as compared with the case where the substrate 720 is laid down so that the first sensor 710 faces downward. That is, in this embodiment, the first sensor 710 faces the sensing magnet 730 by vertically arranging the substrate 720, thereby enhancing the sensing sensitivity of the first sensor 710.

In this embodiment, the substrate 720 can be joined by the upper elastic member 510 and the engaging member. At this time, the joining member may include solder. Further, the joining member may further include an adhesive applied to the solder. The substrate 720 may be coupled to the upper elastic member 510 by a solder ball. The housing 310 may be provided with a pocket portion 340 in which a solder ball coupling the substrate 720 and the upper elastic member 510 may be received. The inner surface of the substrate 720 may be supported by the inner wall portion 341. The outer surface of the substrate 720 may be spaced apart from the outer wall portion 342. The substrate 720 may be disposed on the first bottom surface 343. The substrate 720 may be coupled to the housing 310 by an adhesive. At this time, at least a portion of the adhesive may be received in the stepped space defined by the first bottom surface 343 and the second bottom surface 344. [

The sensing magnet 730 may be disposed on the bobbin 210. The sensing magnet 730 may be disposed on the first corner portion 305 side of the housing 310. The sensing magnet 730 may be sensed by the first sensor 710. The sensing magnet 730 may be opposed to the first sensor 710. The sensing magnet 730 may have a hexahedral shape. However, the shape of the sensing magnet 730 is not limited thereto. The sensing magnet 730 may be disposed on one side of the bobbin 210. The sensing magnet 730 may be disposed at a corner of the bobbin 210. That is, the sensing magnet 730 may be arranged to face the corner of the housing 310.

In this embodiment, a part of the outer surface of the sensing magnet 730 may be supported by the bobbin 210. A part of the outer surface of the sensing magnet 730 may be supported by the bobbin 210 and the remaining part may be exposed to the outside. With this structure, it is possible to prevent the sensing magnet 730 from falling out of the bobbin 210. The bobbin 210 may include a guide chamfer to facilitate the process of inserting the sensing magnet 730. The lower surface of the sensing magnet 730 can be brought into contact with the upper surface of the AF drive coil 220. Such a structure may be explained by omitting the bobbin 210 between the sensing magnet 730 and the AF drive coil 220. In this case, the sensing magnet 730 can be arranged further below, as compared with the case where a part of the bobbin 210 exists between the sensing magnet 730 and the AF driving coil 220. In this embodiment, in order to minimize the phenomenon that the Hall output value of the first sensor 710 is positive in the initial state by the drive magnet 320, the sensing magnet 730 is lowered to the maximum extent to the first sensor 710) is set as close as possible to zero (0).

In this embodiment, the sensing magnet 720 may be formed as a four-pole magnet. Accordingly, magnetic interference between the sensing magnet 720 and the driving magnet 320 can be minimized. The compensating magnet 730 may also be formed as a four-pole magnet.

In this embodiment, the outer surface of the sensing magnet 720 may be opposed to the inner surface of the first sensor 710. The sensing magnet 720 may be disposed so that the length of the outer surface of the sensing magnet 720 in the vertical direction is longer than the length in the horizontal direction. That is, the sensing magnet 720 may be disposed in a standing state in the same manner as the first sensor 710. In this structure, the hole output value of the sensing magnet 730 sensed by the first sensor 710 can be maximized.

The compensation magnet 740 may be disposed on the bobbin 210. The compensation magnet 740 may be disposed on the third corner portion 307 side of the housing 310. The compensating magnet 740 may be disposed so as to be magnetically balanced with the sensing magnet 730. The compensation magnet 740 may be disposed on the bobbin 210 opposite the sensing magnet 730. The compensation magnet 740 may be symmetrical with the sensing magnet 730 about the optical axis. The compensation magnet 740 may be disposed at a position corresponding to the sensing magnet 730 around the optical axis. The compensation magnet 740 may have a size and / or shape corresponding to the sensing magnet 730 about the optical axis. The compensating magnet 740 may be disposed on the other side of the bobbin 210 (on the opposite side of the bobbin 210). That is, a sensing magnet 730 may be disposed on one side of the bobbin 210 and a compensating magnet 740 may be disposed on the other side of the bobbin 210. The compensation magnet 740 may be disposed at the corner of the bobbin 210. [ That is, the compensation magnet 740 may be arranged to face the corner of the housing 310.

The first sensing unit 700 may further include a yoke 750.

The yoke 750 may be disposed at the corner of the housing 310. The yoke 750 may be disposed at the first and third corner portions 305 and 307 of the housing 310. The yoke 750 may be disposed below the first sensor 710. The yoke 750 may be arranged to prevent magnetic interference of the drive magnet 320 with respect to the first sensor 710.

The yoke 750 may include a first yoke 750a and a second yoke 750b. The first yoke 750a may be disposed on the lower side of the first sensor 710 in the housing 310. [ The second yoke 750b may be disposed on the opposite side of the first yoke 750a in the housing 310. [ The first yoke 750a may be disposed at the first corner portion 305 of the housing 310. [ And the second yoke 750b may be disposed at the second corner portion 307 of the housing 310. [ The first yoke 750a may be disposed at the first corner portion 305 of the housing 310 facing the sensing magnet 730. [ The second yoke 750b may be disposed at the third corner portion 307 of the housing 310 opposite to the compensation magnet 740. [

The yoke 750 may include a body portion 751 and an extension portion 752. The body portion 751 may be disposed below the substrate 720. The inner surface of the body portion 751 may be disposed parallel to the outer surface of the sensing magnet 730. The extension 752 may extend from the body portion 751. The extension portion 752 can contact the drive magnet 320. The extension portion 752 may be formed on both sides of the body portion 751. The yoke 750 may be provided in a shape for preventing the driving magnet 320 from interfering with the magnetic field of the first sensor 710.

The second sensor 800 may be provided for shake correction feedback. In this case, the second sensor 800 may be referred to as an 'OIS feedback sensor'. The second sensor 800 can detect the movement of the housing 310. The second sensor 800 may sense movement or tilt in a direction perpendicular to the optical axis of the housing 310 and / or the bobbin 210. [ And the second sensor 800 can sense the driving magnet 320. [ The second sensor 800 may sense the driving magnet 320 disposed in the housing 310. The second sensor 800 can sense the position of the housing 310. [ The second sensor 800 can sense the amount of movement in a direction perpendicular to the optical axis of the housing 310. At this time, the movement amount of the housing 310 in the direction perpendicular to the optical axis may correspond to the movement amount of the lens module coupled to the bobbin 210 and the bobbin 210. The second sensor 800 may be disposed in the stator 400. The second sensor 800 may be disposed on the lower surface of the substrate 410. The second sensor 800 may be electrically connected to the substrate 410. The second sensor 800 may be disposed on the base 430. The second sensor 800 may be received in the sensor coupling portion 433 formed on the upper surface of the base 430. The second sensor 800 may be a hall sensor. The second sensor 800 may be a Hall IC (Hall IC). The second sensor 800 can sense the magnetic force of the driving magnet 320. [ That is, when the housing 310 moves, the second sensor 800 senses the amount of displacement of the housing 310 by detecting a change in the magnetic force that is changed by the movement of the driving magnet 320. The second sensor 800 may be provided in plural. For example, the second sensor 800 may be provided in two to sense movement of the x-axis and y-axis (optical axis is z-axis) of the housing 310.

The first damper 910 may be disposed on the support member 600. The first damper 910 may be disposed in the support member 600 and the housing 310. The second damper 920 may be disposed on the upper elastic member 510. The dampers 910 and 920 may be disposed on the elastic member 500 and / or the support member 600 to prevent a resonance phenomenon generated in the elastic member 500 and / or the support member 600. The shock absorber (not shown) may be provided on at least one of the elastic member 500 and the support member 600. The shock absorbing portion may be formed by changing the shape of the elastic member 500 and / or a part of the support member 600.

The first damper 910 may be disposed on the support member 600, the engaging portion 514 of the upper elastic member 510, the leg portion 515 of the upper elastic member 510, and the housing 310. The first damper 910 may be applied to the support member 600, the engaging portion 514 of the upper elastic member 510, the leg portion 515 of the upper elastic member 510, and the housing 310. The first damper 910 may be disposed in an area of 90% or more of the entire area of the lower surface of the leg portion 515 of the upper elastic member 510. The first damper 910 may be disposed in an area exceeding 50% of the total area of the lower surface of the leg portion 515 of the upper elastic member 510. [ The first damper 910 may be disposed in a space between the second concave surface 332 and the upper elastic member 510 and a space between the first concave surface 331 and the upper elastic member 510. Alternatively, the first damper 910 may be disposed only in the space between the second concave surface 332 and the upper elastic member 510. The first damper 910 may be disposed in the damper groove 330 to cover the support member 600, the engaging portion 514, and the leg portion 515.

The second damper 920 may be disposed on the bobbin 210 and the upper elastic member 510. The second damper 920 may be disposed on the protrusion 215 of the bobbin 210 and the damper arrangement portion 530 of the upper elastic member 510.

Hereinafter, the operation of the camera module according to the present embodiment will be described.

First, the autofocus function of the camera module according to the present embodiment will be described. When the power is supplied to the AF drive coil 220, the AF drive coil 220 moves relative to the drive magnet 320 by electromagnetic interaction between the AF drive coil 220 and the drive magnet 320 . At this time, the bobbin 210 to which the AF driving coil 220 is coupled moves integrally with the AF driving coil 220. That is, the bobbin 210 to which the lens module is coupled moves in the direction of the optical axis with respect to the housing 310. This movement of the bobbin 210 results in movement of the lens module toward or away from the image sensor. Thus, in this embodiment, power is supplied to the AF driving coil 220 to perform focus adjustment on the subject You can do it. On the other hand, the aforementioned focus adjustment can be performed automatically according to the distance of the subject.

On the other hand, in the camera module according to the present embodiment, autofocus feedback control can be performed for more precise realization of the autofocus function. The first sensor 710 disposed in the housing 310 senses the magnetic field of the sensing magnet 730 disposed on the bobbin 210. Accordingly, when the bobbin 210 moves relative to the housing 310, the amount of the magnetic field sensed by the first sensor 710 changes. The first sensor 710 senses the movement amount of the bobbin 210 in the optical axis direction or the position of the bobbin 210 in this manner and transmits the detection value to the control unit. The control unit determines whether to perform an additional movement with respect to the bobbin 210 through the received sensing value. Since such a process is generated in real time, the autofocus function of the camera module according to the present embodiment can be performed more precisely through the autofocus feedback control.

The camera shake correction function of the camera module according to the present embodiment will be described. When the power is supplied to the OIS drive coil 422, the drive magnet 320 moves relative to the OIS drive coil 422 by electromagnetic interaction between the OIS drive coil 422 and the drive magnet 320 . At this time, the housing 310 to which the driving magnet 320 is coupled moves integrally with the driving magnet 320. That is, the housing 310 is moved in the horizontal direction (direction perpendicular to the optical axis) with respect to the base 430. However, at this time, the housing 310 may be tilted with respect to the base 430. Meanwhile, the bobbin 210 moves integrally with the housing 310 with respect to the horizontal movement of the housing 310. This movement of the housing 310 thus results in the lens module coupled to the bobbin 210 moving relative to the image sensor in a direction parallel to the direction in which the image sensor lies. That is, in this embodiment, power is supplied to the OIS driving coil 422 to perform an image stabilization function.

Meanwhile, the camera shake correction feedback control may be performed for more precise realization of the shake correction function of the camera module according to the present embodiment. The second sensor 800 disposed on the base 430 detects the magnetic field of the driving magnet 320 disposed on the housing 310. Therefore, when the housing 310 performs the relative movement with respect to the base 430, the amount of the magnetic field sensed by the second sensor 800 changes. The pair of second sensors 800 senses the movement amount or position in the horizontal direction (x-axis and y-axis direction) of the housing 310 in this manner and transmits the detection value to the control unit. The control unit determines whether to perform the additional movement to the housing 310 through the received sensing value. Since such a process is generated in real time, the camera shake correction function of the camera module according to the present embodiment can be performed more precisely through the camera shake correction feedback control.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. It is to be understood that the terms such as 'include', 'comprising', or 'having', as used herein, mean that a component can be implied unless specifically stated to the contrary. But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

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

100: cover member 200: first movable member
300: second movable element 400: stator
500: elastic member 600: supporting member
700: first sensing unit 800: second sensor
910: first damper 920: second damper

Claims (10)

A housing including an upper surface and an outer wall portion;
A bobbin disposed inside the housing to move in a first direction;
A first coil disposed in the bobbin;
A first magnet disposed in the housing and facing the first coil;
A base disposed below the housing;
A substrate including a circuit member having a second coil disposed between the housing and the base and facing the first magnet;
An upper elastic member disposed on the upper side of the bobbin and coupled to the bobbin and the housing; And
And a supporting member coupled with the upper elastic member and the substrate,
Wherein the upper elastic member includes an outer side portion coupled to the housing, a coupling portion coupled with the support member, and a leg portion connecting the outer side portion and the coupling portion,
Wherein the housing includes a damper groove in which a damper is disposed in a portion of the upper surface of the housing corresponding to the leg portion and the engaging portion,
Wherein the damper groove includes a first groove corresponding to the leg portion and a second groove corresponding to the engaging portion,
Wherein the first groove is connected to the second groove and the length from the upper surface of the outer wall to the bottom of the second groove is greater than the length from the upper surface of the outer wall to the bottom of the first groove,
Wherein a portion of the outer wall portion of the housing forms the first sidewall of the first groove and the second groove. The method according to claim 1,
The damper groove further comprises a third groove connected to the second groove,
And a part of the outer wall portion of the housing forms the second sidewall of the second groove and the third groove. 3. The method of claim 2,
And a side wall of at least one of the first sidewall and the second sidewall includes a fourth groove. The method of claim 3,
And the fourth groove is disposed between the first groove and the second groove, or between the second groove and the third groove. 3. The method of claim 2,
And the first groove and the third groove are disposed on the upper portion of the second groove. The method according to claim 1,
Wherein the damper is disposed in the damper groove and surrounds the support member, the engagement portion, and the leg portion. The method according to claim 1,
Wherein the damper is disposed in an area exceeding 50% of the total area of the lower surface of the leg portion. The method according to claim 1,
The housing includes first to fourth side portions and first to fourth corner portions formed between the first to fourth side portions,
Wherein the support member includes a first support portion disposed at a first corner portion of the housing, the upper side elastic member includes a plurality of elastic units spaced from each other,
Wherein the plurality of elastic units include a first elastic unit electrically connected to the first support unit,
The first elastic unit includes a first outer side coupled to one side of the housing, a second outer side coupled to one side of the housing and a side adjacent to the housing, a first coupling unit coupled to the support member, A first leg portion connecting the first coupling portion and a second leg portion connecting the second outer portion and the first coupling portion,
Wherein the first leg portion and the second leg portion are disposed opposite to each other with respect to the first engaging portion. 9. The method of claim 8,
Wherein each of the first and second leg portions is bent or curved at least twice. Printed circuit board;
An image sensor disposed on the printed circuit board;
A housing including an upper surface and an outer wall portion;
A bobbin disposed inside the housing to move in a first direction;
A first coil disposed in the bobbin;
A first magnet disposed in the housing and facing the first coil;
A base disposed between the housing and the printed circuit board;
A substrate including a circuit member having a second coil disposed between the housing and the base and facing the first magnet;
An upper elastic member disposed on the upper side of the bobbin and coupled to the bobbin and the housing; And
And a supporting member coupled with the upper elastic member and the substrate,
Wherein the support member includes a first wire and a second wire that are disposed apart from each other at a first corner of the housing,
The upper elastic member includes a first elastic unit coupled with the first wire and a second elastic unit coupled with the second wire,
The first elastic unit includes a first outer portion coupled to the housing, a first coupling portion coupled with the first wire, and a first leg portion connecting the first outer portion and the first coupling portion,
The second elastic unit includes a second outer side coupled to the housing, a second engagement part coupled with the second wire, and a second leg part connecting the second outer side part and the second engagement part,
Wherein the housing includes a damper groove in which a damper is disposed,
Wherein the damper groove includes a first groove disposed in the first engagement portion, a second groove disposed in the second engagement portion, and a third groove disposed between the first groove and the second groove,
Wherein a portion of the outer wall of the housing forms a first sidewall of the first groove and the second groove and forms a second sidewall of the second groove and the third groove.

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