KR102546301B1 - Lens driving device, camera module and optical apparatus - Google Patents

Abstract

This embodiment, the housing; a bobbin located inside the housing; a first driving unit located on the bobbin; a second driving unit located in the housing and facing the first driving unit; a support member coupled to the housing and the bobbin; and a damper applied to the support member, wherein the support member includes an outer portion coupled to the housing, an inner portion coupled to the bobbin, and a connection portion connecting the outer portion and the inner portion, wherein the damper, It relates to a lens driving device located in the connecting portion.

Description

Lens driving device, camera module and optical apparatus {Lens driving device, camera module and optical apparatus}

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

The contents described below provide background information on the present embodiment, but do not describe the prior art.

As the distribution of various portable terminals is widely generalized and wireless Internet services are commercialized, consumers' demands related to portable terminals are also diversifying, and various types of additional devices are being installed in portable terminals.

Among them, a typical example is a camera module that takes a picture or video of a subject. Meanwhile, recently, a camera module having an auto focus function has been used. Furthermore, a camera module having an auto focus feedback function is being developed.

However, in a conventional camera module having an autofocus feedback function, there is a problem in that the elastic member resonates when an impact corresponding to the resonant frequency of the elastic member coupling the bobbin and the housing is applied.
(Patent Document 1) JP 2016-004108 A

In order to solve the above problem, it is intended to provide a lens driving device that performs feedback control of auto focus by sensing the position of a lens.

Furthermore, it is intended to provide a structure in which a damping force can be easily controlled by design in a closed-loop lens driving device.

Furthermore, it is intended to provide a camera module and an optical device including the lens driving device.

A lens driving device according to this embodiment includes a housing; a bobbin located inside the housing; a first driving unit located on the bobbin; a second driving unit located in the housing and facing the first driving unit; a support member coupled to the housing and the bobbin; and a damper applied to the support member, wherein the support member includes an outer portion coupled to the housing, an inner portion coupled to the bobbin, and a connection portion connecting the outer portion and the inner portion, wherein the damper, It may be located in the connection part.

The damper may include a first damper integrally applied to the connecting portion and the inner portion.

The connection part includes an outer extension part extending from the outer part, an inner extension part extending from the inner part, and a connection extension part connecting the outer extension part and the inner extension part, wherein the connection extension part comprises a first extension part. And, including a second extension portion extending obliquely from the first extension portion, wherein the inner portion is coupled to the bobbin and spaced apart from each other first and second coupling portions, and a body connecting the first and second coupling portions and a protrusion extending outwardly from the body and at least a portion of which is positioned between the connecting extensions.

The connection extension part further includes a third extension part obliquely extending from the second extension part and a fourth extension part obliquely extending from the third extension part, wherein the first to fourth extension parts are rounded at least in part. can be formed.

The first damper may be applied to one or more of a first position integrally applied to the first extension and the protrusion, and a second position integrally applied to the second extension and the protrusion.

The first damper has a third position integrally applied to the outer extension and the body, a fourth position integrally applied to the inner extension and the body, and a connection extension and the body. It may be applied to any one or more of the fifth positions that are integrally applied.

The damper may include a second damper integrally applied to the connecting portion and the outer portion.

The second damper may be applied to each of a plurality of positions spaced apart from each other.

The connection part includes an outer extension part extending from the outer part, an inner extension part extending from the inner part, and a connection extension part connecting the outer extension part and the inner extension part, wherein the connection extension part comprises a first extension part. and a second extension portion obliquely extending from the first extension portion, and the damper may include a third damper integrally applied to the first extension portion and the second extension portion.

The lens driving device includes a sensing magnet positioned on one side of the bobbin; Compensation magnet located on the other side of the bobbin; and a sensor unit located in the housing and sensing the sensing magnet.

The support member includes an upper support member coupled to an upper portion of the housing and an upper portion of the bobbin, and a lower support member coupled to a lower portion of the housing and a lower portion of the bobbin, and the damper is positioned on the lower support member. can

The camera module according to the present embodiment includes a housing; a bobbin located inside the housing; a first driving unit located on the bobbin; a second driving unit located in the housing and facing the first driving unit; a support member coupled to the housing and the bobbin; and a damper applied to the support member, wherein the support member includes an outer portion coupled to the housing, an inner portion coupled to the bobbin, and a connection portion connecting the outer portion and the inner portion, wherein the damper, It may be located in the connection part.

The optical device according to the present embodiment includes a housing; a bobbin located inside the housing; a first driving unit located on the bobbin; a second driving unit located in the housing and facing the first driving unit; a support member coupled to the housing and the bobbin; and a damper applied to the support member, wherein the support member includes an outer portion coupled to the housing, an inner portion coupled to the bobbin, and a connection portion connecting the outer portion and the inner portion, wherein the damper, It may be located in the connection part.

Through the present invention, it becomes easy to adjust the damping force by design. In more detail, the damping gel application position may be set according to the damping force required by design.

1 is a perspective view of a lens driving device according to this embodiment.
2 is an exploded perspective view of the lens driving device according to the present embodiment.
Fig. 3 is a bottom view showing a part of the lens driving device according to the present embodiment.
Fig. 4 is a bottom view showing a part of a lens driving device according to a modified example.
5 is a perspective view of a housing of the lens driving device according to the present embodiment.
6 is a perspective view showing a part of the lens driving device according to the present embodiment.
7 is a bottom perspective view showing a part of the lens driving device according to the present embodiment.
8 is a cross-sectional view viewed from AA of FIG. 1 .
Fig. 9 is a plan view showing a part of the lens driving device according to the present embodiment.

Hereinafter, some embodiments of the present invention will be described through exemplary drawings. In describing the reference numerals for the components of each drawing, the same numerals indicate the same components as much as possible, even if they are displayed on different drawings. In addition, in describing an embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function hinders understanding of the embodiment of the present invention, the detailed description will be omitted.

Also, terms such as first, second, A, B, (a), and (b) may be used to describe components of an embodiment of the present invention. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. When an element is described as being “connected,” “coupled to,” or “connected” to another element, the element may be directly connected, coupled, or connected to the other element, but not between the element and the other element. It should be understood that another component 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 coupled to the lens driving device. On the other hand, the “optical axis direction” may be used interchangeably with a vertical direction, a z-axis direction, and the like.

The "auto focus function" used below refers to focusing on a subject by adjusting the distance to the image sensor by moving the lens module in the optical axis direction according to the distance of the subject so that a clear image of the subject can be obtained from the image sensor. defined as a function. Meanwhile, “auto focus” may be used interchangeably with “auto focus (AF)”.

Hereinafter, one of the driving coil unit 220 and the driving magnet unit 320 may be referred to as a 'first driving unit' and the other may be referred to as a 'second driving unit'.

Hereinafter, one of the driving magnet unit 320, the sensing magnet unit 710, and the compensation magnet unit 720 is referred to as a 'first magnet unit', the other is referred to as a 'second magnet unit', and the other is referred to as a 'second magnet unit'. It may be referred to as a 'third magnet part'.
Hereinafter, one of the "first accommodating groove 316", "second accommodating groove 317" and "third accommodating groove 318" is referred to as a "first groove" and the other is referred to as a "second groove". ", and the other one may be referred to as a "third groove".

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

The optical device according to the present embodiment includes a mobile phone, a mobile phone, a smart phone, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), and a portable multimedia player (PMP). ), navigation, etc., but is not limited thereto, and any device for capturing images or photos is possible.

The optical device according to the present embodiment includes a main body (not shown), a display unit (not shown) disposed on one surface of the main body to display information, and a camera module (not shown) installed in the main body to take images or photos. It may include a camera (not shown) having a time).

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

The camera module may further include a lens driving device 10, 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). there is.

The lens module may include one or more lenses (not shown). The lens module may include a lens and a lens barrel (not shown). However, one component of the lens module is not limited to the lens barrel, and any holder structure capable of supporting one or more lenses may be used. The lens module is coupled to the lens driving device 10 and may move along with a part of the lens driving device 10 . The lens module may be coupled to the inside of the lens driving device 10 . The lens module may be screwed to the lens driving device 10 . The lens module may be coupled to the lens driving device 10 by an adhesive (not shown). Meanwhile, light passing through the lens module may be irradiated to the image sensor.

The infrared filter may be located in the through hole 510 of the base 500 . Alternatively, the infrared filter may be located on a holder member (not shown) provided separately from the base 500 . The infrared filter may block light in the infrared region from being incident on the image sensor. The infrared filter may include an infrared absorption filter (blue filter). The infrared filter may include an infrared reflection filter (IR cut filter). An infrared filter may be positioned between the lens module and the image sensor. 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 imaging surface or a cover glass. However, it is not limited thereto.

The printed circuit board may support the lens driving device 10 . An image sensor may be mounted on the printed circuit board. As an example, an image sensor may be located inside the upper surface of the printed circuit board, and a sensor holder (not shown) may be located outside the upper surface of the printed circuit board. A lens driving device 10 may be positioned above the sensor holder. Alternatively, the lens driving device 10 may be located outside the upper surface of the printed circuit board, and the image sensor may be located inside the upper surface of the printed circuit board. Through such a structure, light passing through the lens module accommodated inside the lens driving device 10 may be irradiated to an image sensor mounted on a printed circuit board. The printed circuit board may supply power to the lens driving device 10 . Meanwhile, a controller for controlling the lens driving device 10 may be located on the printed circuit board.

The image sensor may be mounted on a printed circuit board. The image sensor may be positioned such that an optical axis coincides with the lens module. Through this, the image sensor may obtain light passing through the lens module. The image sensor may output irradiated light as an image. The image sensor may be, for example, a charge coupled device (CCD), a metal oxide semi-conductor (MOS), a CPD, and a CID. However, the type of image sensor is not limited thereto.

The control unit may be mounted on a printed circuit board. The control unit may control the direction, strength, amplitude, and the like of the current supplied to each component of the lens driving device 10 . The controller may control the lens driving device 10 to perform an auto focus function of the camera module. That is, the controller may control the lens driving device 10 to move the lens module in the optical axis direction. Furthermore, the controller may perform feedback control of the auto focus function. In more detail, the controller may receive the position of the lens module sensed by the sensing unit 700 and control power or current applied to the driving coil unit 220 to provide a more precise autofocus function.

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

1 is a perspective view of a lens driving device according to this embodiment, FIG. 2 is an exploded perspective view of the lens driving device according to this embodiment, and FIG. 3 is a bottom view showing a part of the lens driving device according to this embodiment. 4 is a bottom view showing a part of a lens driving device according to a modified example, FIG. 5 is a perspective view of a housing of the lens driving device according to this embodiment, and FIG. 6 is a part of the lens driving device according to this embodiment. , Fig. 7 is a bottom perspective view showing a part of the lens driving device according to the present embodiment, Fig. 8 is a cross-sectional view viewed from A-A in Fig. 1, and Fig. 9 is a lens driving device according to the present embodiment. It is a plan view showing a part.

1 to 9, the lens driving device 10 according to the present embodiment includes a cover member 100, a mover 200, a stator 300, a base 500, a support member 600, and A sensing unit 700 may be included. However, in the lens driving device 10 according to the present embodiment, any one of the cover member 100, the mover 200, the housing 300, the base 500, the support member 600, and the sensing unit 700 The above may be omitted. In particular, the sensing unit 700 is configured for an auto focus feedback function and can be omitted.

The cover member 100 may form the exterior of the lens driving device 10 . The cover member 100 may have a hexahedral shape with an open bottom. However, it is not limited thereto.

The cover member 100 may be formed of a metal material as an example. More specifically, the cover member 100 may be provided with a metal plate material. In this case, the cover member 100 may block electromagnetic interference (EMI). Due to such characteristics of the cover member 100, the cover member 100 may be referred to as an EMI shield can. The cover member 100 may block radio waves generated outside the lens driving device 10 from being introduced into the cover member 100 . In addition, the cover member 100 may block radio waves generated inside the cover member 100 from being emitted to the outside of the cover member 100 . However, the material of the cover member 100 is not limited thereto.

The cover member 100 may include an upper plate 101 and a side plate 102 . The cover member 100 may include a top plate 101 and a side plate 102 extending downward from an outside of the top plate 101 . The lower end of the side plate 102 of the cover member 100 may be mounted on the base 500 . The inner surface of the cover member 100 may be mounted on the base 500 in close contact with part or all of the side surface of the base 500 . The mover 200, the stator 300, and the support member 600 may be positioned in the inner space formed by the cover member 100 and the base 500. Through such a structure, the cover member 100 may have a function of preventing penetration of external contaminants while protecting internal components from external impact. However, the lower end of the side plate 102 of the cover member 100 may be directly coupled to the printed circuit board located on the lower side of the base 500.

The cover member 100 may include an opening 110 formed on the top plate 101 to expose the lens module. The opening 110 may have a shape corresponding to that of 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 . Meanwhile, light introduced through the opening 110 may pass through the lens module. In this case, the light passing through the lens module may be acquired as an image by an image sensor.

The mover 200 may include a bobbin 210 and a driving coil unit 220 . The mover 200 may include a bobbin 210 to which a lens module is coupled. The mover 200 may include a bobbin 210 located inside the housing 310 . The mover 200 may include a driving coil unit 220 positioned on the bobbin 210 . The mover 200 may include a driving coil unit 220 facing the driving magnet unit 320 . The mover 200 may move integrally with the lens module through electromagnetic interaction with the stator 300 .

The bobbin 210 may be located inside the housing 310 . A driving coil unit 220 may be positioned on the bobbin 210 . A support member 600 may be coupled to the bobbin 210 . An upper support member 610 may be coupled to an upper portion of the bobbin 210 . A lower support member 620 may be coupled to a lower portion of the bobbin 210 . A sensing magnet unit 710 may be positioned on the bobbin 210 . A sensing magnet part 710 may be positioned on one side of the bobbin 210 , and a compensation magnet part 720 may be positioned on the other side of the bobbin 210 . The bobbin 210 may be coupled to the lens module. An outer circumferential surface of the lens module may be coupled to an inner circumferential surface of the bobbin 210 . The bobbin 210 may move in the optical axis direction with respect to the housing 310 .

The bobbin 210 may include a lens coupling portion 211, a coil coupling portion 212, an upper coupling portion 213, and a lower coupling portion (not shown).

The bobbin 210 may include a lens coupling part 211 formed on the inside. A lens module may be coupled to the lens coupler 211 . A screw thread having a shape corresponding to a screw thread formed on an outer circumferential surface of the lens module may be formed on an inner circumferential surface of the lens coupler 211 . That is, the lens coupler 211 may be screwed to the lens module. An adhesive may be interposed between the lens module and the bobbin 210 . At this time, the adhesive may be an epoxy cured by ultraviolet (UV) or heat. That is, the lens module and the bobbin 210 may be bonded by UV curing epoxy and/or heat curing epoxy.

The bobbin 210 may include a coil unit coupling unit 212 on which the driving coil unit 220 is wound or mounted. The coil unit coupling part 212 may be integrally formed with the outer surface of the bobbin 210 . In addition, the coil unit coupling part 212 may be continuously formed along the outer surface of the bobbin 210 or may be formed spaced apart at predetermined intervals. As an example, the coil unit coupling part 212 may be formed by recessing a part of the outer surface of the bobbin 210 to correspond to the shape of the driving coil unit 220 . At this time, the driving coil unit 220 may be directly wound around the coil coupling unit 212 . As a modified example, the coil unit coupling part 212 may be formed in an upper or lower open type. In this case, the driving coil unit 220 may be inserted and coupled to the coil unit coupling unit 212 through an open portion in a pre-wound state.

The bobbin 210 may include an upper coupling portion 213 coupled to the upper support member 610 . The upper coupling portion 213 may be coupled to the inner portion 612 of the upper support member 610 . As an example, a protrusion (not shown) of the upper coupling part 213 may be inserted into a groove or hole (not shown) of the inner part 612 and coupled thereto. At this time, the protrusion of the upper coupling portion 213 may be heat-sealed while being inserted into the hole of the inner portion 612 to fix the upper support member 610 .

The bobbin 210 may include a lower coupling part 214 coupled to the lower support member 620 . The lower coupling portion 214 may be coupled to the inner portion 622 of the lower support member 620 . As an example, a protrusion (not shown) of the lower coupling part 214 may be inserted into a groove or hole (not shown) of the inner part 622 and coupled thereto. At this time, the protrusion of the lower coupling portion 214 may be heat-sealed while being inserted into the hole of the inner portion 622 to fix the lower support member 620 .

The bobbin 210 may include a sensing magnet receiving portion 215 in which the sensing magnet portion 710 is accommodated. The sensing magnet accommodating part 215 may be formed on one side of the bobbin 210 . The sensing magnet accommodating part 215 may accommodate the sensing magnet part 710 . The sensing magnet accommodating portion 215 may be formed by being recessed inward from the coil coupling portion 212 .

The bobbin 210 may include a compensation magnet receiving part 216 in which the compensation magnet part 720 is accommodated. The compensation magnet accommodating part 216 may be formed on the other side of the bobbin 210 . The compensation magnet accommodation unit 216 may accommodate the compensation magnet unit 720 . The compensation magnet accommodating portion 216 may be formed by being recessed inward from the coil coupling portion 212 . The compensation magnet accommodating part 216 may be positioned symmetrically from the center of the sensing magnet accommodating part 215 and the bobbin 210 . In this case, if the magnetism of the sensing magnet unit 710 accommodated in the sensing magnet accommodating unit 215 and the compensation magnet unit 720 accommodated in the compensation magnet accommodating unit 216 are symmetrical, the sensing magnet unit 710 and compensation Electromagnetic equilibrium may be achieved between the magnet parts 720 . As a result, the influence of the sensing magnet unit 710 on the electromagnetic interaction between the driving coil unit 220 and the driving magnet unit 320 may be minimized.

The driving coil unit 220 may be located on the bobbin 210 . The driving coil unit 220 may face the driving magnet unit 320 . The driving coil unit 220 may move the bobbin 210 relative to the housing 310 through electromagnetic interaction with the driving magnet unit 320 . The driving coil unit 220 may overlap the sensing magnet unit 710 in a direction perpendicular to the optical axis. The driving coil unit 220 may be located outside the sensing magnet unit 710 .

The driving coil unit 220 may include at least one coil. The drive coil unit 220 may be provided as a single coil and may be guided to the coil unit coupler 212 and wound around the outer surface of the bobbin 210 . In addition, as a modified example, the drive coil unit 220 may be disposed on the outer surface of the bobbin 210 such that four coils are independently provided so that two adjacent coils form a 90° angle to each other.

The driving coil unit 220 may include a pair of lead wires (not shown) for power supply. At this time, the pair of lead wires of the drive coil unit 220 may be electrically connected to the first lower support unit 624 and the second lower support unit 625, which are the divisional components of the lower support member 620. One end of the driving coil unit 220 may be electrically connected to the substrate 740 through the first lower support unit 624 . The other end of the driving coil unit 220 may be electrically connected to the substrate 740 through the second lower support unit 625 . Alternatively, the driving coil unit 220 may receive power through the upper support member 610 . Meanwhile, when power is supplied to the driving coil unit 220 , an electromagnetic field may be formed around the driving coil unit 220 . As a modified example, the driving magnet unit 320 may be disposed on the bobbin 210 and the driving coil unit 220 may be disposed on the housing 310 . That is, the driving coil unit 220 and the driving magnet unit 320 may be disposed by changing positions.

The stator 300 may be located outside the mover 200 . The stator 300 may be supported by the base 500 located on the lower side. The stator 300 may be located in the inner space of the cover member 100 . The stator 300 may move the mover 200 through electromagnetic interaction.

The stator 300 may include a housing 310 positioned outside the bobbin 210 . The stator 300 may include a driving magnet part 320 positioned opposite to the driving coil part 220 and fixed to the housing 310 .

The housing 310 may be located outside the bobbin 210 . A bobbin 210 may be positioned inside the housing 310 . A driving magnet part 320 may be located in the housing 310 . A support member 600 may be coupled to the housing 310 . An upper support member 610 may be coupled to an upper portion of the housing 310 . A lower support member 620 may be coupled to a lower portion of the housing 310 .

The housing 310 may be formed in a shape corresponding to the inner surface of the cover member 100 . The housing 310 may be formed of an insulating material. The housing 310 may be formed as an injection-molded product in consideration of productivity. The housing 310 may be fixed on the base 500 . Alternatively, the housing 310 may be omitted and the driving magnet unit 320 may be directly fixed to the cover member 100 . An upper support member 610 may be coupled to an upper portion of the housing 310 and a lower support member 620 may be coupled to a lower portion of the housing 310 .

The housing 310 may include first to fourth corner portions 305, 306, 307, and 308 spaced apart from each other. The housing 310 may include a first corner part 305 positioned between the first and second side parts 301 and 302 . The housing 310 may include a second corner portion 306 positioned between the second and third side portions 302 and 303 . The housing 310 may include a third corner portion 307 positioned between the third and fourth side portions 303 and 304 . The housing 310 may include a fourth corner portion 308 positioned between the fourth and first side portions 304 and 301 .

The housing 310 includes a first side surface 301 and a first corner portion 305 positioned between the first side surface 301 and a second side surface 302 adjacent to the first side surface 301, and the sensor unit 730 is It may be located in the first corner part 305 .

The upper and lower sides of the housing 310 are open to accommodate the bobbin 210 movably in the optical axis direction. The housing 310 may include an inner space 311 inside. The bobbin 210 may be movably positioned in the inner space 311 . That is, the inner space 311 may be provided in a shape corresponding to the bobbin 210 . In addition, the outer circumferential surface of the inner space 311 may be spaced apart from the outer circumferential surface of the bobbin 210 .

The housing 310 may include a magnet part coupling part 312 formed in a shape corresponding to the driving magnet part 320 on a side surface and accommodating the driving magnet part 320 . The magnet unit coupling unit 312 may accommodate and fix the driving magnet unit 320 . The magnet part coupling part 312 may be formed through the side part of the housing 310 . Alternatively, the magnet unit coupling portion 312 may be recessed on the inner circumferential surface of the housing 310 .

The magnet unit coupling portion 312 may include first to fourth coupling holes 331 , 332 , 333 , and 334 spaced apart from each other. The first magnet 321 may be coupled to the first coupling hole 331 . A second magnet 322 may be coupled to the second coupling hole 332 . A third magnet 323 may be coupled to the third coupling hole 333 . A fourth magnet 324 may be coupled to the fourth coupling hole 334 . The first coupling hole 331 may be located on the first side portion 301 of the housing 310 . The second coupling hole 332 may be located on the second side portion 302 of the housing 310 . The third coupling hole 333 may be located on the third side surface portion 303 of the housing 310 . The fourth coupling hole 334 may be located on the fourth side surface portion 304 of the housing 310 . The first coupling hole 331 may be located closer to the fourth corner portion 308 than to the first corner portion 305 . The second coupling hole 332 may be located closer to the second corner portion 306 than to the first corner portion 305 . The third coupling hole 333 may be located closer to the second corner portion 306 than to the third corner portion 307 . The fourth coupling hole 334 may be located closer to the fourth corner portion 308 than the third corner portion 307 . That is, the magnet part coupling part 312 may be positioned biased towards the second corner part 306 and the fourth corner part 308 side.

The housing 310 may include an upper coupling portion 313 coupled to the upper support member 610 . The upper coupling portion 313 may be coupled to the outer portion 611 of the upper support member 610 . As an example, the protrusion of the upper coupling portion 313 may be inserted into a groove or hole (not shown) of the outer portion 611 and coupled thereto. At this time, the protrusion of the upper coupling portion 313 may be heat-sealed while being inserted into the hole of the outer portion 611 to fix the upper support member 610 .

The housing 310 may include a lower coupling part (not shown) coupled to the lower support member 620 . The lower coupling portion may be coupled to the outer portion 621 of the lower support member 620 . As an example, the protrusion of the lower coupling portion may be inserted into a groove or hole (not shown) of the outer portion 621 and coupled thereto. At this time, the protrusion of the lower coupling portion may be heat-sealed while being inserted into the hole of the outer portion 621 to fix the lower support member 620 . Alternatively, the outer portion 621 of the lower support member 620 may be inserted between the lower surface of the housing 310 and the upper surface of the base 500 and fixed in a pressurized manner.

A sensor substrate accommodating portion 315 may be formed in the housing 310 . The sensor substrate accommodating part 315 may be formed in the housing 310 . The sensor substrate accommodating portion 315 may accommodate at least a portion of the substrate 740 . The sensor substrate accommodating portion 315 may include a first accommodating groove 316 formed by being depressed outward from an inner surface of the first corner portion 305 of the housing 310 . The sensor substrate accommodating portion 315 may include a second accommodating groove 317 formed by being depressed inward from an outer surface of the first side surface portion 301 of the housing 310 . The sensor substrate accommodating portion 315 may include a third accommodating groove 318 formed by being depressed upward from the lower surface of the first side surface portion 301 of the housing 310 .

The first receiving groove 316 may be formed by being depressed outward from the inner surface of the first corner portion 305 of the housing 310 . The second receiving groove 317 may be formed by being depressed inward from an outer surface of the first side surface portion 301 of the housing 310 . The first accommodating groove 316 and the second accommodating groove 317 may communicate with each other. The third receiving groove 318 may be formed by being depressed upward from the lower surface of the first side surface portion 301 of the housing 310 . The first to third receiving grooves 318 may communicate with each other. The first to third accommodating grooves 318 may accommodate at least a portion of the substrate 740 and the sensor unit 730 .

The driving magnet part 320 may be located in the housing 310 . The driving magnet part 320 may face the driving coil part 220 . The driving magnet part 320 may be fixed to the magnet part coupling part 312 of the housing 310 . The driving magnet unit 320 may be attached to the housing 310 by an adhesive. The driving magnet unit 320 may move the driving coil unit 220 through electromagnetic interaction with the driving coil unit 220 . The driving magnet part 320 may not overlap the body part 742 of the substrate 740 in a direction perpendicular to the optical axis.

The driving magnet unit 320 may include at least one magnet. The driving magnet unit 320 may include first to fourth magnets 321 , 322 , 323 , and 324 . The driving magnet part 320 is located on the first magnet 321 located on the first side part 301, the second magnet 322 located on the second side part 302, and the third side part 303. It may include a third magnet 323 and a fourth magnet 324 located on the fourth side part 304.

The first to fourth magnets 321, 322, 323, and 324 may be spaced apart from each other. The first to fourth magnets 321 , 322 , 323 , and 324 may be disposed on the housing 310 so that two adjacent magnets form a 90° angle to each other. The first magnet 321 may be coupled to the first coupling hole 331 of the housing 310 . The second magnet 322 may be coupled to the second coupling hole 332 of the housing 310 . The third magnet 323 may be coupled to the third coupling hole 333 of the housing 310 . The fourth magnet 324 may be coupled to the fourth coupling hole 334 of the housing 310 . The first magnet 321 may be symmetrically disposed with respect to the center of the third magnet 323 and the housing 310 . The second magnet 322 may be symmetrically disposed with respect to the center of the fourth magnet 324 and the housing 310 .

The center of the first magnet 321 may be located closer to the fourth corner portion 308 than the first corner portion 305 of the housing 310 . That is, the center of the first magnet 321 may be biased toward the fourth corner portion 308 . The center of the second magnet 322 may be located closer to the second corner portion 306 than the first corner portion 305 of the housing 310 . That is, the center of the second magnet 322 may be positioned toward the second corner portion 306 . The center of the third magnet 323 may be located closer to the second corner portion 306 than the third corner portion 307 of the housing 310 . That is, the center of the third magnet 323 may be positioned toward the second corner portion 306 . The center of the fourth magnet 324 may be located closer to the fourth corner portion 308 than the third corner portion 307 of the housing 310 . That is, the center of the fourth magnet 324 may be biased toward the fourth corner portion 308 . In this case, electromagnetic interference between the first to fourth magnets 321 , 322 , 333 , and 334 and the sensing unit 700 can be minimized. That is, in the present embodiment, the arrangement space of the sensing unit 700 may be secured through the shape and arrangement structure of the driving magnet part 320 .

The base 500 may be located below the bobbin 210 . The base 500 may be located on the lower side of the housing 310 . The base 500 may support the stator 300 . A printed circuit board may be positioned below the base 500 . The base 500 may function as a sensor holder that protects an image sensor mounted on a printed circuit board.

The base 500 may include a through hole 510 , a terminal accommodating part 540 , and a foreign matter collecting part (not shown).

The base 500 may include a through hole 510 formed at a position corresponding to the lens coupler 211 of the bobbin 210 . Meanwhile, an infrared filter may be coupled to the through hole 510 of the base 500 . However, an infrared filter may be coupled to a separate sensor holder disposed below the base 500.

The base 500 may include a terminal accommodating portion 540 in which at least a portion of the terminal portion 743 of the board 740 is accommodated. The terminal accommodating portion 540 may accommodate at least a portion of the terminal portion 743 of the board 740 . The terminal accommodating portion 540 may be formed by being recessed inward from an outer surface of the base 500 . The terminal unit 743 accommodated in the terminal accommodating unit 540 may be disposed so that the terminal is exposed to the outside.

The base 500 may include a foreign matter collection unit that collects foreign matter introduced into the cover member 100 . The foreign matter collecting unit is located on the upper surface of the base 500 and may collect foreign matter on the inner space formed by the cover member 100 and the base 500 including adhesive materials.

The support member 600 may be coupled to the bobbin 210 and the housing 310. The support member 600 may include an elastic member. The support member 600 may movably support the bobbin 210 with respect to the housing 310 . The support member 600 may movably support the bobbin 210 with respect to the base 500 .

The support member 600 includes an upper support member 610 coupled to the upper portion of the housing 310 and the upper portion of the bobbin 210, and a lower support member coupled to the lower portion of the housing 310 and the lower portion of the bobbin 210. (620). The damper may be located on the lower support member 620 .

The support member 600 may include an upper support member 610 coupled to an upper portion of the bobbin 210 and an upper portion of the housing 310 . The upper support member 610 may be coupled to an upper portion of the bobbin 210 and an upper portion of the housing 310 . The upper support member 610 may elastically support the bobbin 210 relative to the housing 310 .

The upper support member 610 may include, for example, an outer portion 611 , an inner portion 612 , and a connection portion 613 . The upper support member 610 includes an outer portion 611 coupled to the housing 310, an inner portion 612 coupled to the bobbin 210, and a connecting portion elastically connecting the outer portion 611 and the inner portion 612 ( 613) may be included.

The upper support member 610 may be coupled to an upper portion of the bobbin 210 and an upper portion of the housing 310 . The inner portion 612 of the upper support member 610 is coupled to the upper coupling portion 213 of the bobbin 210, and the outer portion 611 of the upper support member 610 is coupled to the upper coupling portion 313 of the housing 310. can be combined with

The support member 600 may include a lower support member 620 coupled to a lower portion of the bobbin 210 and a lower portion of the housing 310 . The lower support member 620 may be coupled to the housing 310 and the bobbin 210 . The lower support member 620 may be coupled to a lower portion of the bobbin 210 and a lower portion of the housing 310 . The lower support member 620 may elastically support the bobbin 210 relative to the housing 310 .

The lower support member 620 may include, for example, an outer portion 621, an inner portion 622, and a connection portion 623. The lower support member 620 includes an outer portion 621 coupled to the housing 310, an inner portion 622 coupled to the bobbin 210, and a connecting portion elastically connecting the outer portion 621 and the inner portion 622 ( 623) may be included.

The lower support member 620 may be coupled to a lower portion of the bobbin 210 and a lower portion of the housing 310 . The lower coupling portion 214 of the bobbin 210 may be coupled to the inner portion 622 of the lower support member 620, and the lower coupling portion of the housing 310 may be coupled to the outer portion 621 of the lower support member 620. there is. However, the outer portion 621 of the lower support member 620 may be fixed by being pressed between the lower surface of the housing 310 and the upper surface of the base 500 .

The lower support members 620 may be separated as a pair to supply power to the driving coil unit 220 . The lower support member 620 may include a first lower support unit 624 electrically connecting one end of the drive coil unit 220 and the substrate 740 . The lower support member 620 may include a second lower support unit 625 that is spaced apart from the first lower support unit 624 and electrically connects the other end of the driving coil unit 220 and the substrate 740. there is.

The connection part 623 of the lower support member 620 may include an outer extension part 631 extending from the outer part 621 . The connection part 623 may include an inner extension part 632 extending from the inner part 622 . The connection part 623 may include a connection extension part 633 connecting the outer extension part 631 and the inner extension part 632 . In this case, the connection extension part 633 may include a first extension part 634 and a second extension part 635 bent and extended from the first extension part 634 .

As shown in FIG. 3 , the outer extension part 631 may be inclinedly extended three or more times. As shown in FIG. 3 , the obliquely extending portion of the outer extension portion 631 may sequentially extend from the outer portion 621 at an obtuse angle, an acute angle, or a right angle. At this time, the obliquely extending portion of the outer extension 631 may be formed to be rounded.

As shown in FIG. 3 , the inner extension part 632 may connect the inner part 622 and the connection extension part 633 with a letter (ㅡ). However, the shape of the inner extension part 632 is not limited thereto.

The connection extension 633 may have an M-shape as shown in FIG. 3 . In more detail, the extension part 633 includes a first extension part 634 obliquely extending from the inner extension part 632 and a second extension part 635 obliquely extending from the first extension part 634, It may include a third extension part 636 obliquely extending from the second extension part 635 and a fourth extension part 637 extending obliquely from the third extension part 636 and connected to the outer extension part 631. can In this case, the first extension 634 and the second extension 635 may extend in a round shape. Accordingly, it may be described as having a separate round portion between the first extension portion 634 and the second extension portion 635 . Also, the description of the round portion may be inferred to be applied between the second extension portion 635 to the fourth extension portion 637 . On the other hand, when the connection extension part 633 is extended obliquely multiple times as mentioned, there is an advantage in that the length of the connection part 623 can be sufficiently secured even in a limited space between the outer part 621 and the inner part 622. For reference, if the length of the connection part 623 is secured, even if the width of the connection part 623 is designed to be wide, there is an advantage in that elasticity required for the connection part 623 can be secured. At this time, using a wide width of the connecting portion 623 has advantages such as minimizing the occurrence of breakage or deformation and being insensitive to the occurrence of errors, and thus supporting the camera module for optical devices manufactured in a fine size. The member 600 can be considered as a great advantage.

The inner portion 622 of the lower support member 620 may include first and second coupling portions 641 and 642 coupled to the bobbin 210 and spaced apart from each other. The inner part 622 may include a body part 643 connecting the first and second coupling parts 641 and 642 . The inner portion 622 may include a protrusion 644 extending outwardly from the body portion 643 and at least a portion of which is positioned between the connecting extension portions 633 .

The sensing unit 700 may detect and provide location information of a lens module for an auto focus feedback function. The sensing unit 700 may include a sensing magnet unit 710 , a compensation magnet unit 720 , a sensor unit 730 and a substrate 740 . The sensing magnet 710 may be located on one side of the bobbin 210 . The compensation magnet 720 may be located on the other side of the bobbin 210 . The sensor unit 730 is located in the housing 310 and can sense the sensing magnet 710 .

The sensing magnet unit 710 may be located on the bobbin 210 . The sensing magnet unit 710 may be sensed by the sensor unit 730 . The sensing magnet part 710 may be positioned to face the first corner part 305 of the housing 310 . The sensing magnet unit 710 may be located on a first imaginary line (L1 in FIG. 9 ) that is an imaginary straight line connecting the first corner unit 305 and the third corner unit 307 . The sensing magnet unit 710 may have magnetism corresponding to that of the compensation magnet unit 720 . The sensing magnet unit 710 may be located on one side of the bobbin 210 . The sensing magnet unit 710 may overlap the drive coil unit 220 in a direction perpendicular to the optical axis. The sensing magnet unit 710 may be located inside the driving coil unit 220 .

The sensing magnet unit 710 may be disposed in consideration of its relative position with the sensor unit 730 so as to use only a section in which a hall output is a positive number due to a quadrupole magnetization.

The compensation magnet unit 720 may have magnetism corresponding to that of the sensing magnet unit 710 . The compensation magnet part 720 may be located on the other side of the bobbin 210 . The compensation magnet part 720 may be located on a first imaginary line L1 that is an imaginary straight line connecting the first corner part 305 and the third corner part 307 . The compensation magnet part 720 may be positioned symmetrically with respect to the center of the sensing magnet part 710 and the bobbin 210 . Through this, electromagnetic balance may be achieved between the sensing magnet unit 710 and the compensation magnet unit 720 . As a result, the influence of the sensing magnet unit 710 on the electromagnetic interaction between the driving coil unit 220 and the driving magnet unit 320 may be minimized.

The sensor unit 730 may sense the sensing magnet unit 710 . The sensor unit 730 may be positioned on a first imaginary line L1 that is a virtual straight line connecting the first corner portion 305 and the third corner portion 307 . That is, the sensor unit 730, the sensing magnet unit 710, and the compensation magnet unit 720 may all be positioned on the first virtual line L1. The sensor unit 730 may be mounted on the substrate 740 . The sensor unit 730 may be mounted on the extension 741 of the board 740 . The sensor unit 730 may include a Hall sensor (Hall IC) that senses the magnetic field of the magnet.

The hall sensor is fixed to the housing 310 and the sensing magnet part 710 is fixed to the bobbin 210 . When the sensing magnet part 710 moves together with the bobbin 210, the magnetic flux density sensed by the Hall element inside the Hall sensor changes according to the relative positions of the Hall sensor and the sensing magnet part 710. The Hall sensor may detect the position of the lens module using an output voltage of the Hall sensor that is proportional to a magnetic flux density value that changes according to the relative position of the Hall sensor and the sensing magnet unit 710 .

A sensor unit 730 may be mounted on the board 740 . At least a portion of the substrate 740 may be accommodated in the sensor substrate accommodating portion 315 formed in the housing 310 . The substrate 740 may be electrically connected to one end of the driving coil unit 220 by the first lower support unit 624 . The substrate 740 may be electrically connected to the other end of the driving coil unit 220 by the second lower support unit 625 . That is, the substrate 740 may supply power to the driving coil unit 220 through the lower support member 620 .

The substrate 740 may include a body portion 742 accommodated in the second receiving groove 317 of the housing 310 . The substrate 740 may include a terminal portion 743 extending downward from the body portion 742 . The substrate 740 may include an extension portion 741 that is bent from the body portion 742 and accommodated in the first accommodating groove 316 of the housing 310 and on which the sensor unit 730 is mounted. The substrate 740 may be a flexible printed circuit board (FPCB). However, it is not limited thereto.

The substrate 740 may be inserted into the sensor substrate accommodating portion 315 of the housing 310 from a lower side. The substrate 740 may be fixed by an adhesive (not shown) while being inserted into the sensor substrate accommodating portion 315 of the housing 310 . While the substrate 740 is inserted into the sensor substrate accommodating portion 315 of the housing 310, the body portion 742 is located outside the housing 310 and the extension portion 741 is inside the housing 310. can be positioned so as to Through such a structure, the terminal part 743 located on the lower side of the body part 742 is easily coupled for the external configuration and electricity, and the sensor part 730 mounted on the inner surface of the extension part 741 is It is possible to detect the sensing magnet unit 710 disposed on the high output.

The extension part 741 may be bent from the body part 742 and accommodated in the first receiving groove 316 of the housing 310 . A sensor unit 730 may be mounted on the extension part 741 . The body portion 742 may be accommodated in the second receiving groove 317 of the housing 310 . The body portion 742 may not overlap the driving magnet portion 320 in a direction perpendicular to the optical axis. The terminal portion 743 may extend downward from the body portion 742 . The terminal portion 743 may be exposed to the outside.

The lens driving device 10 according to the present embodiment may include a bobbin sub-assembly. In the bobbin sub-assembly, the sensing magnet part 710 and the compensation magnet part 720 are fixed to two opposite corners of the bobbin 210 and driving coil part 220 assembly. By securing a space between the driving coil unit 220 and the corner of the bobbin 210 and inserting the sensing magnet unit 710 and the compensation magnet unit 720 in the pocket shape, the same size as the general lens driving device 10 Reliability of adhesion between the sensing magnet unit 710 and the compensation magnet unit 720 may be secured. The reason why the sensing magnet part 710 and the compensating magnet part 720 are inserted together is to make the influence of magnetic field interference with the driving magnet part 320 symmetrical. Therefore, when the magnetic field interference is small, it is also possible to assemble only one sensing magnet part 710 .

The lens driving device 10 according to the present embodiment may include a cover can assembly. In the cover can assembly, the substrate 740 assembly is fitted and fixed in the gap between the housing 310 and the cover member 100. Through such a structure, in the present embodiment, the autofocus feedback function can be implemented in the same size as a general AF lens driving device by arranging the hall sensor at the corner. On the other hand, in the present embodiment, the driving magnet unit 320 is arranged so as to lean towards the side where the sensing magnet unit 710 and the compensation magnet unit 720 are not present, so that the sensing magnet unit 710 and the compensation magnet unit 720 and the driving magnet Tilt generated by the influence of magnetic field interference between the parts 320 can be minimized.

The lens driving apparatus 10 according to the present embodiment may include a damper (not shown). The damper may be applied to the connection part 623 of the lower support member 620 and the bobbin 210 . Alternatively, the damper may be applied to the connection portion 623 of the lower support member 620 and the fixing frame of the lower support member 620 . The damper may include an epoxy that is cured by UV light. On the other hand, in this embodiment, by applying the damper on the lower side of the lower support member 620, it is possible to standardize the process design similar to a general AF lens driving device.

The damper may be applied to the lower support member 620 . The damper may include a damping gel. The damper may be located at the connection part 623 . In this embodiment, the connection part 623 may be referred to as a 'movable part'. Meanwhile, in the present embodiment, the outer portion 621 and the inner portion 622 may be collectively referred to as a 'fixed frame'. According to this embodiment, it is easy to adjust the damping force by design by applying a damper between the movable part of the lower support member 620 and the frame. According to this embodiment, the damper can be applied to a position between most of the movable part and the frame, and the damping gel application position can be set according to the damping force required by design.

The damper may include a first damper 810 integrally applied to the connecting portion 623 and the inner portion 622 . The first damper is a first position 801 integrally applied to the first extension 634 and the protrusion 644, and a second position integrally applied to the second extension 635 and the protrusion 644. Any one or more of (802) may be applied. The first damper is a third position 803 integrally applied to the outer extension 631 and the body 643, and a fourth position integrally applied to the inner extension 632 and the body 643 ( 804), and the fifth position 805 integrally applied to the connection extension part 633 and the body part 643.

The damper may include a second damper (not shown) integrally applied to the connecting portion 623 and the outer portion 621 . The second damper may be applied to a sixth position 806 integrally applied to the connecting portion 623 and the outer portion 621 . The second damper may be applied to each of a plurality of positions spaced apart from each other.

As a modified example, the damper may include a third damper integrally applied to the first extension part 634 and the second extension part 635 as shown in FIG. 4 . The third damper may be applied to a seventh position 807 integrally applied to the first extension part 634 and the second extension part 635 .

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

In more detail, the auto focus function of the camera module according to the present embodiment will be described. When power is supplied to the drive coil unit 220, the drive coil unit 220 moves with respect to the drive magnet unit 320 due to electromagnetic interaction between the drive coil unit 220 and the drive magnet unit 320. will perform At this time, the bobbin 210 to which the driving coil unit 220 is coupled moves integrally with the driving coil unit 220 . That is, the bobbin 210 coupled to the inside of the lens module moves in the optical axis direction with respect to the housing 310 . Since such movement of the bobbin 210 results in the lens module moving closer to or farther from the image sensor, in this embodiment, power is supplied to the driving coil unit 220 to control the focus on the subject. is carried out

Meanwhile, in the camera module according to the present embodiment, auto focus feedback is applied for more precise realization of the auto focus function. The sensor unit 730 disposed in the housing 310 detects a magnetic field of the sensing magnet unit 710 fixed to the bobbin 210 . Therefore, when the bobbin 210 moves relative to the housing 310, the distance between the sensor unit 730 and the sensing magnet unit 710 changes, so that the amount of the magnetic field sensed by the sensor unit 730 is It changes. The sensor unit 730 detects the amount of movement of the bobbin 210 in the optical axis direction or the position of the bobbin 210 in this way and transmits the detected value to the controller. The control unit determines whether or not to additionally move the bobbin 210 through the received sensing value. Since this process occurs in real time, the auto focus function of the camera module according to the present embodiment can be performed more precisely through auto focus feedback.

In the above, the present embodiment has been described as an AF model capable of performing an auto focus function. However, in a modification of this embodiment, the housing 310 and the base 500 are spaced apart, and the lateral support member movably supports the housing 310 with respect to the base 500, and the OIS coil is on the upper surface of the base 500. It may be positioned to face the additional driving magnet part 320 . That is, in the modified example of the present embodiment, the hand shake correction function may be performed together with the auto focus function.

In the above, even though all the components constituting the embodiment of the present invention have been described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, within the scope of the object of the present invention, all of the components may be selectively combined with one or more to operate. In addition, terms such as "comprise", "comprise" or "having" described above mean that the corresponding component may be present unless otherwise stated, and thus exclude other components. It should be construed as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Commonly used terms, such as terms defined in a dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and unless explicitly defined in the present invention, they are not interpreted in an ideal or excessively formal meaning.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

100: cover member 200: mover
300: stator 500: base
600: support member 700: sensing unit

Claims (20)

Base;
a cover member disposed on the base and including an upper plate and a side plate;
a bobbin disposed within the cover member;
a housing disposed between the cover member and the bobbin;
a coil disposed on the bobbin;
a driving magnet disposed between the coil and the side plate of the cover member;
a sensing magnet disposed on the bobbin;
a substrate disposed between the housing and the side plate of the cover member; and
A sensor disposed on the substrate and sensing the sensing magnet;
The substrate includes a body portion disposed outside the housing and an extension portion extending from the body portion,
The body portion extends in a first direction,
The extension part extends in a second direction different from the first direction,
The sensor is disposed on the extension portion of the substrate. According to claim 1,
The lens driving device wherein the extension portion is bent from the body portion. According to claim 1,
The lens driving device of claim 1 , wherein the body portion and the extension portion form an obtuse angle. According to claim 1,
The substrate includes a terminal portion extending downward from the body portion,
The terminal unit includes a plurality of terminals,
When viewed from the outside, the plurality of terminals are exposed below the side plate of the cover member. According to claim 4,
The base includes a terminal receiving portion recessed on an outer surface of the base,
The lens driving device of claim 1 , wherein the terminal portion of the substrate is disposed in the terminal accommodating portion of the base. According to claim 1,
The housing includes a first groove,
The lens driving device of claim 1 , wherein the extension portion of the substrate is disposed in the first groove of the housing. According to claim 1,
The housing includes a second groove recessed on an outer surface of the housing,
The lens driving device of claim 1 , wherein the body portion of the substrate is disposed in the second groove of the housing. According to claim 1,
The housing includes a third groove recessed from the lower surface of the housing,
The sensor is disposed in the third groove of the housing. According to claim 1,
The sensor overlaps the housing in the optical axis direction,
A lens driving device wherein an upper surface of the sensor is fixed to the housing. According to claim 1,
The upper surface of the sensor is in contact with the housing,
A lower surface of the sensor is spaced apart from the housing. According to claim 1,
The sensor is a lens driving device including a hall sensor for sensing the magnetic force of the sensing magnet. According to claim 1,
The coil is a lens driving device disposed between the sensing magnet and the sensor. According to claim 1,
The sensor is a lens driving device disposed between the substrate and the coil. According to claim 1,
a lower support member connecting the housing and the bobbin; and
Including a damper disposed on the lower support member,
The lower support member includes an outer portion coupled to the housing, an inner portion coupled to the bobbin, and a connection portion connecting the outer portion and the inner portion,
The damper is a lens driving device disposed in the connecting portion of the lower support member. Base;
a cover member disposed on the base and including an upper plate and a side plate;
a bobbin disposed within the cover member;
a housing disposed between the cover member and the bobbin;
a coil disposed on the bobbin;
a driving magnet disposed between the coil and the side plate of the cover member;
a sensing magnet disposed on the bobbin;
a substrate disposed between the housing and the side plate of the cover member; and
A sensor disposed on the substrate and sensing the sensing magnet;
The substrate includes a body portion disposed outside the housing and an extension portion bent from the body portion,
The sensor is disposed on the extension portion of the substrate. According to claim 15,
The extension portion extends in a direction different from that of the body portion. According to claim 15,
The lens driving device of claim 1 , wherein the body portion and the extension portion form an obtuse angle. According to claim 15,
The substrate includes a terminal portion extending downward from the body portion,
The terminal unit includes a plurality of terminals,
When viewed from the outside, the plurality of terminals are exposed below the side plate of the cover member. printed circuit board;
an image sensor disposed on the printed circuit board;
The lens driving device according to any one of claims 1 to 18 disposed on the printed circuit board; and
A camera module including a lens coupled to the lens driving device. main body;
The camera module of claim 19 disposed on the main body; and
An optical device comprising a display disposed on the main body and outputting an image captured by the camera module.

Images