KR102506545B1 - 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 in the housing; a second driving unit located on the bobbin and facing the first driving unit; and an upper support member coupled to an upper portion of the housing and an upper portion of the bobbin, wherein the housing includes a protrusion extending upward from an upper surface of the housing and positioned outside the upper support member. it's about

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. On the other hand, recent camera modules are equipped with an image stabilization function for moving a lens module to offset shaking generated in an image sensor by an external force. In this case, an elastic support member for movably supporting the component coupled to the lens module is provided.

However, in the conventional camera module mentioned above, since the damper application section applied to the support member is exposed to the outside, there is a high possibility that the damper will be removed after the reliability test, which is a problem. In addition, since the support member is exposed to the outside, it is easily deformed during work, affecting performance, which is a problem.

In order to solve the above problem, the present embodiment is intended to provide a lens driving device having a support member deformation prevention structure.

In addition, the present embodiment is intended to provide a lens driving device having a structure for preventing a damper from falling off.

In addition, the present embodiment 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 in the housing; a second driving unit located on the bobbin and facing the first driving unit; and an upper support member coupled to an upper portion of the housing and an upper portion of the bobbin, wherein the housing may include a protrusion extending upward from an upper surface of the housing and positioned outside the upper support member.

The housing includes a first side surface, a second side surface adjacent to the first side surface, and a corner portion positioned between the first side surface and the second side surface, and the protruding portion may be located on the corner portion. .

The protrusion may overlap the upper support member in a direction perpendicular to an optical axis of the lens module coupled to the bobbin.

The housing includes first to fourth side surfaces and first to fourth corner portions positioned between the first to fourth side surfaces, and the protruding portion includes a first protrusion positioned on the first corner portion; It includes a second protrusion located at the second corner, a third protrusion located at the third corner, and a fourth protrusion located at the fourth corner, wherein the center of the first protrusion and the third protrusion are An imaginary first line connecting the centers may be orthogonal to a second imaginary line connecting the center of the second protrusion and the center of the fourth protrusion at the center of the housing.

The housing further includes an upper stopper extending upward from an upper surface of the housing and positioned inside the protrusion, and an upper end of the protrusion is lower than an upper end of the upper stopper and higher than the upper support member, At least a portion of the upper support member may be positioned between the upper stopper and the protrusion.

a base located on the lower side of the housing; a stator including a third driving unit facing the first driving unit and located on the base; and a lateral support member coupled to the upper support member and the stator, and the housing may further include a lateral support member accommodating portion accommodating the lateral support member and positioned inside the protruding portion.

A cover member accommodating the housing and the bobbin in an inner space and coupled to the base includes a side plate having a lower end coupled to the base, an upper plate positioned above the housing, and the side plate. and a round portion connecting the top plate in a round shape, and the protrusion may overlap the round portion in an optical axis direction of a lens module coupled to the bobbin.

The upper support member includes an inner portion coupled to the bobbin, an outer portion coupled to the housing, a coupling portion coupled to the lateral support member, a first connection portion connecting the inner portion and the outer portion, and the outer portion and the upper support member. It includes a second connection portion connecting the coupling portion, and the second connection portion may be bent a plurality of times.

A first damper disposed on the coupling part, the lateral support member, and the housing may be further included.

The bobbin may include a protrusion protruding upward from an upper surface of the bobbin, and a second damper may be positioned on the protrusion and the inner portion.

A lens driving device according to this embodiment includes a housing; a bobbin located inside the housing; a first driving unit located in the housing; a second driving unit located on the bobbin and facing the first driving unit; a support member coupled to the housing and the bobbin; and an upper stopper located in the housing and forming an uppermost end of the housing, wherein the housing may include a protrusion extending upward from an upper surface of the housing and positioned outside the upper stopper.

The housing may have a hexahedral shape, and the protruding portion may include first to fourth protrusions positioned at each of four upper corner portions of the hexahedral housing.

The lens driving device includes a base positioned below the housing; a stator including a third driving unit facing the first driving unit and located on the base; and a lateral support member coupled to the upper support member and the stator, and the protruding portion may be positioned outside the lateral support member.

The camera module according to the present embodiment includes a housing; a bobbin located inside the housing; a first driving unit located in the housing; a second driving unit located on the bobbin and facing the first driving unit; and an upper support member coupled to an upper portion of the housing and an upper portion of the bobbin, wherein the housing may include a protrusion extending upward from an upper surface of the housing and positioned outside the upper support member.

The optical device according to the present embodiment includes a housing; a bobbin located inside the housing; a first driving unit located in the housing; a second driving unit located on the bobbin and facing the first driving unit; and an upper support member coupled to an upper portion of the housing and an upper portion of the bobbin, wherein the housing may include a protrusion extending upward from an upper surface of the housing and positioned outside the upper support member.

In this embodiment, a phenomenon in which the support member is deformed due to contact between operations can be prevented.

Furthermore, the damper can be prevented from coming off through this embodiment.

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 plan view showing a part of the lens driving device according to the present embodiment.
4 is a cross-sectional view showing the lens driving device according to the present embodiment.
5 is a perspective view showing a part of the lens driving device according to the present embodiment.
6 is a perspective view showing a part of a lens driving device according to a modified example of 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 the embodiments of the present invention, detailed descriptions of some components may be omitted.

Also, terms such as first and second may be used in describing 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” or “coupled” to another element, that element may be directly connected or coupled to the other element, but there is no communication between the element and the other element. It should be understood that elements may be connected or coupled.

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)”.

The “hand shake correction function” used below is defined as a function of moving or tilting a lens module in a direction perpendicular to an optical axis direction to offset shaking (movement) generated in an image sensor by an external force. Meanwhile, “hand shake correction” may be used interchangeably with “optical image stabilization (OIS)”.

Hereinafter, a direction toward the center of the lens driving device is referred to as "inside", and a direction away from the center of the lens driving device is referred to as "outside".

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 further includes a lens driving device (not shown), a lens module (not shown), an infrared cut filter (not shown), a printed circuit board (not shown), an image sensor (not shown), and a controller (not shown). can do.

The lens module may include a lens and a lens barrel. The lens module may include one or more lenses (not shown) and a lens barrel accommodating the one or more lenses. However, one configuration 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 may be coupled to the lens driving device and move together with the lens driving device. The lens module, as an example, may be coupled to the inside of the lens driving device. The lens module may be screw-coupled with the lens driving device as an example. The lens module, for example, may be coupled to the lens driving device by an adhesive (not shown). Meanwhile, light passing through the lens module may be irradiated to the image sensor.

The infrared cut filter may block light in the infrared region from being incident on the image sensor. An infrared cut filter may be positioned between the lens module and the image sensor as an example. The infrared cut filter may be located on a holder member (not shown) provided separately from the base 500 . However, the infrared filter may be mounted in the through hole 510 formed in the center of the base 500. The infrared filter may be formed of, for example, a film material or a glass material. As an example, the infrared filter may be formed by coating an infrared blocking coating material on a flat plate-shaped optical filter such as a cover glass for protecting an imaging surface or a cover glass.

The printed circuit board may support the lens driving device. 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 may be positioned above the sensor holder. Alternatively, the lens driving device 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 may be irradiated to the image sensor mounted on the printed circuit board. The printed circuit board may supply power to the lens driving device. Meanwhile, a control unit for controlling the lens driving device 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 be located outside the lens driving device. However, the control unit may be located inside the lens driving device. The control unit may control the direction, strength, and amplitude of the current supplied to each component constituting the lens driving device. The controller may perform at least one of an auto focus function and a hand shake correction function of the camera module by controlling the lens driving device. That is, the controller may control the lens driving device to move the lens module in the direction of the optical axis, move or tilt the lens module in a direction perpendicular to the direction of the optical axis. Furthermore, the controller may perform feedback control of the auto focus function and hand shake correction function. In more detail, the control unit receives the position of the bobbin 210 or the housing 310 detected by the sensor unit and controls the power or current applied to the AF coil unit 220 to the OIS coil unit 420 to obtain more precise An auto focus function and an image stabilization function may be provided.

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 the present embodiment, FIG. 2 is an exploded perspective view of the lens driving device according to the present embodiment, and FIG. 3 is a plan view showing a part of the lens driving device according to the present embodiment. Fig. 4 is a cross-sectional view showing a lens driving device according to this embodiment, and Fig. 5 is a perspective view showing a part of the lens driving device according to this embodiment.

1 to 5, the lens driving device according to the present embodiment includes a cover member 100, a first mover 200, a second mover 300, a stator 400, and a base 500. , It may include a support member 600 and a sensor unit (not shown). However, in the lens driving device according to the present embodiment, the cover member 100, the first mover 200, the second mover 300, the stator 400, the base 500, the support member 600, and the sensor Any one or more of the parts may be omitted. In particular, the sensor unit may be omitted as a configuration for an auto focus feedback function and/or an image stabilization feedback function.

The cover member 100 may accommodate the housing 310 and the bobbin 210 in an inner space. The cover member 100 may be coupled to the base 500 . The cover member 100 may form the exterior of the lens driving device. 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 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 a top plate 101, a side plate 102 and a round portion 103. The cover member 100 may include a side plate 102 whose lower end is coupled to the base 500 . The cover member 100 may include a top plate 101 positioned above the housing 310 . The cover member 100 may include a round portion 103 connecting the side plate 102 and the top plate 101 in a round shape. 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 first mover 200, the second mover 300, the stator 400, 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 can protect internal components from external impact and at the same time prevent penetration of external contaminants. However, it is not limited thereto, and 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 first mover 200 may include a bobbin 210 and an AF coil unit 220 . The first mover 200 may include a bobbin 210 coupled to the lens module. The first mover 200 may include an AF coil unit 220 that is located on the bobbin 210 and moves by electromagnetic interaction with the driving magnet unit 320 .

The bobbin 210 may be coupled to the lens module. More specifically, the outer circumferential surface of the lens module may be coupled to the inner circumferential surface of the bobbin 210 . An AF coil unit 220 may be positioned on the bobbin 210 . The AF coil unit 220 may be coupled to the bobbin 210 . An upper support member 610 may be coupled to an upper portion of the bobbin 210 . The bobbin 210 may be located inside the housing 310 . The bobbin 210 may move relative to the housing 310 in the optical axis direction.

The bobbin 210 may include a lens accommodating part 211 , a first driving part coupling part 212 , an upper coupling part 213 , a lower coupling part (not shown), and a protrusion 215 .

The bobbin 210 may include an upper and lower open type lens accommodating part 211 inside. The bobbin 210 may include a lens accommodating portion 211 formed inside. A lens module may be coupled to the lens accommodating part 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 the inner circumferential surface of the lens accommodating portion 211 . That is, the lens accommodating part 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 first driving part coupling part 212 in which the AF coil part 220 is disposed. The first driving unit coupling part 212 may be integrally formed with the outer surface of the bobbin 210 . In addition, the first drive unit coupling portion 212 may be formed continuously along the outer surface of the bobbin 210 or may be formed spaced apart at predetermined intervals. As an example, the first drive 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 AF coil unit 220 . In this case, the AF coil unit 220 may be directly wound on the first driving unit coupling unit 212 . As a modified example, the first driving unit coupling part 212 may be formed in an upper or lower open type. At this time, the AF coil unit 220 may be inserted and coupled to the first driving 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 portion 213 may be inserted into a groove or hole (not shown) of the inner portion 612 of the upper support member 610 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 portion coupled to the lower support member 620 . The lower coupling portion may be coupled to the inner portion 622 of the lower support member 620 . As an example, the protrusion (not shown) of the lower coupling part may be inserted into a groove or hole (not shown) of the inner portion 622 of the lower support member 620 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 inner portion 622 to fix the lower support member 620 .

The bobbin 210 may include a protrusion 215 protruding upward from the upper surface of the bobbin 210 . The protrusion 215 may protrude upward from the upper surface of the bobbin 210 . The protrusion 215 may be provided in four. However, it is not limited thereto. A second damper may be applied to the protrusion 215 . A portion of the upper support member 610 may be formed in a shape avoiding the protrusion 215 .

One of the AF coil unit 220, the driving magnet unit 320, and the OIS coil unit 420 is referred to as a 'first driving unit', the other is referred to as a 'second driving unit', and the other is referred to as a 'third driving unit'. can be called Meanwhile, in this embodiment, the AF coil unit 220 is located on the bobbin 210, the driving magnet unit 320 is located on the housing 310, and the OIS coil unit 420 is located on the base 500. However, the AF coil unit 220, the driving magnet unit 320, and the OIS coil unit 420 may be disposed by changing their mutual positions. Furthermore, one or more of the coil parts 220 and 420 may be replaced with an additional magnet part. That is, the first to third driving units may be provided with any configuration as long as they are configured to selectively perform electromagnetic interaction with each other. Meanwhile, one of the AF coil unit 220 and the OIS coil unit 420 may be referred to as a 'first coil unit' and the other may be referred to as a 'second coil unit'.

The AF coil unit 220 may be guided to the first drive unit coupling unit 212 and wound around the outer surface of the bobbin 210 . Also, as another embodiment, the AF 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 AF coil unit 220 may face the driving magnet unit 320 . The AF coil unit 220 may be disposed to electromagnetically interact with the driving magnet unit 320 . The AF coil unit 220 may move the bobbin 210 relative to the housing 310 through electromagnetic interaction with the driving magnet unit 320 .

The AF coil unit 220 may include a pair of lead wires (not shown) for power supply. In this case, the pair of lead wires of the AF coil unit 220 may be electrically connected to the first and second upper support units 616 and 617 , which are divided components of the upper support member 610 . That is, the AF coil unit 220 may receive power through the upper support member 610 . Through this structure, when power is supplied to the AF coil unit 220, an electromagnetic field may be formed around the AF coil unit 220.

The second mover 300 may move for a hand shake correction function. The second mover 300 may be positioned opposite to the first mover 200 outside the first mover 200 . The second mover 300 may move the first mover 200 or move together with the first mover 200 . The second mover 300 may be movably supported by the stator 400 and/or the base 500 located on the lower side. The second mover 300 may be located in the inner space of the cover member 100 .

The second mover 300 may include a housing 310 and a driving magnet part 320 . The second mover 300 may include a housing 310 positioned outside the bobbin 210 . In addition, the second mover 300 may include a driving magnet part 320 positioned opposite to the AF coil part 220 and fixed to the housing 310 .

The housing 310 includes a first side surface 301, a second side surface 302 adjacent to the first side surface 301, and a first side surface 301 and a second side surface 302 positioned between A corner portion 305 may be included. The housing 310 is continuously positioned between the first to fourth side surfaces 301, 302, 303, and 304 and the first to fourth side surfaces 301, 302, 303, and 304. It may include the first to fourth corner portions 305, 306, 307, and 308 located on the .

At least a portion of the housing 310 may be formed in a shape corresponding to the inner surface of the cover member 100 . In particular, the outer surface of the housing 310 may be formed in a shape corresponding to the inner surface of the side plate 102 of the cover member 100 . The housing 310 may have, for example, a hexahedral shape including four side surfaces. However, the shape of the housing 310 may be provided in any shape that can be disposed inside the cover member 100 . The housing 310 is formed of an insulating material and may be formed as an injection molding product in consideration of productivity.

The housing 310 may be located outside the bobbin 210 . A driving magnet part 320 may be located in the housing 310 . The housing 310 may be located above the base 500 . The housing 310 is a moving part for driving the OIS and may be spaced apart from the cover member 100 by a predetermined distance. However, in the AF model, the housing 310 may be fixed on the base 500. Alternatively, in the AF model, the housing 310 may be omitted and the driving magnet unit 320 may be fixed to the cover member 100 . An upper support member 610 may be coupled to an upper portion of the housing 310 .

The housing 310 includes an inner space 311, a second driving unit coupling portion 312, an upper coupling portion 313, a lower coupling portion (not shown), a protrusion 330, an upper stopper 340, and a side support member An accommodating part 350 may be included.

The upper and lower sides of the housing 310 are open to accommodate the first mover 200 movably in the vertical direction. The housing 310 may include an upper and lower open inner space 311 inside. The bobbin 210 may be movably disposed 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 inner circumferential surface of the housing 310 forming the inner space 311 may be spaced apart from the outer circumferential surface of the bobbin 210 .

The housing 310 may include a second driving unit coupling part 312 formed in a shape corresponding to the driving magnet unit 320 on a side surface and accommodating the driving magnet unit 320 . The second driving part coupling part 312 may accommodate and fix the driving magnet part 320 . The driving magnet part 320 may be fixed to the second driving part coupling part 312 by an adhesive (not shown). Meanwhile, the second driving unit coupling part 312 may be located on an inner circumferential surface of the housing 310 . In this case, there is an advantage in electromagnetic interaction with the AF coil unit 220 located inside the driving magnet unit 320 . In addition, the second driving unit coupling part 312, as an example, may have an open bottom. In this case, there is an advantage in electromagnetic interaction between the OIS coil unit 420 positioned below the driving magnet unit 320 and the driving magnet unit 320 . As an example, four second driving unit couplers 312 may be provided. A driving magnet unit 320 may be coupled to each of the four second driving unit coupling units 312 . Meanwhile, the second driving unit coupling part 312 may be formed at corner parts 305, 306, 307, and 308 where adjacent side surfaces of the housing 310 meet. Alternatively, the second driving part coupling part 312 may be formed on the side surfaces 301, 302, 303, and 304 of the housing 310.

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 and coupled to a groove or hole (not shown) of the outer portion 611 of the upper support member 610 . 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 portion 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 part may be inserted into and coupled to a groove or hole (not shown) of the outer portion 621 of the lower support member 620 . 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 .

The housing 310 may include a protrusion 330 extending upward from the upper surface and positioned outside the upper support member 610 . The protrusion 330 may extend upward from the top surface. The protrusion 330 may be located outside the upper support member 610 . The protrusions 330 may be located at corner portions 305, 306, 307, and 308 of the housing 310. The protrusion 330 may overlap the upper support member 610 in a direction perpendicular to the optical axis of the lens module coupled to the bobbin 210 . That is, the protrusion 330 may overlap the upper support member 610 in the horizontal direction.

Through this structure, the protrusion 330 can prevent the upper support member 610 from being exposed to the outside in the diagonal direction. That is, when the operator grips the upper portion of the housing 310 to which the upper support member 610 is coupled, even if the operator grips the upper support member 610 in a diagonal direction, the protrusion 330 of the housing 310, not the upper support member 610, is gripped. A phenomenon in which the member 610 is contacted and deformed by a worker may be prevented.

The protrusion 330 includes a first protrusion 331 located on the first corner portion 305, a second protrusion 332 located on the second corner portion 306, and a third corner portion 307. A third protrusion 333 positioned and a fourth protrusion 334 positioned at the fourth corner portion 308 may be included. At this time, a first imaginary line connecting the center of the first protrusion 331 and the center of the third protrusion 333 connects the center of the second protrusion 332 and the center of the fourth protrusion 334. The second line of may be orthogonal to the center of the housing 310. That is, the first to fourth protrusions 331, 332, 333, and 334 may be symmetrically positioned with respect to the center of the housing 310.

The protrusion 330 may be located outside the upper stopper 340 . An upper end of the protrusion 330 may be positioned lower than an upper end of the upper stopper 340 and higher than an upper support member 610 . The protrusion 330 may overlap the round portion 103 of the cover member 100 and the optical axis direction of the lens module coupled to the bobbin 210 . That is, the protruding portion 330 may overlap the round portion 103 in the vertical direction. In other words, the protruding portion 330 may overlap the round portion 103 in the vertical direction. Meanwhile, the upper stopper 340 may overlap the top plate 101 of the cover member 100 in the optical axis direction. That is, the upper stopper 340 may not overlap the round portion 103 in the optical axis direction. Through this structure, when the housing 310 moves upward as much as possible, the upper stopper 340 , not the protrusion 330 , may come into contact with the inner surface of the top plate 101 of the cover member 100 . If the height of the protrusion 330 corresponds to the upper stopper 340, the upper stopper 340 closes the inner surface of the top plate 101 of the cover member 100 before the protrusion 330 covers the cover member 100. It closes first to the round part 103 of (100). In this case, the outer side of the protruding portion 330 moves along the round portion 103, and in the process, the protruding portion 330 is ground, resulting in foreign matter. That is, in the present embodiment, the upper stopper 340 , not the protrusion 330 , is brought into contact with the cover member 100 , thereby preventing the generation of foreign substances due to the splitting of the protrusion 330 .

The protruding portion 330 may be formed to cover up to soldering start portions of the upper support member 610 and the side support member 630 when the lens driving device is viewed from a diagonal angle (45° angle with respect to the side).

The protrusion 330 may be located outside the upper stopper 340 . An upper end of the protrusion 330 may be positioned lower than an upper end of the upper stopper 340 . That is, the upper end of the upper stopper 340 may form the uppermost end of the housing 310 . Through such a structure, when the housing 310 is moved upward by an external force, the upper stopper 340 and the cover member 100 contact each other, thereby limiting the movement of the housing 310 .

The protrusion 330 may be integrally formed with the upper stopper 340 as a modified example. That is, the upper stopper 340 may be omitted. In this case, the top of the protrusion 330 may form the top of the housing 310 .

The housing 310 may include an upper stopper 340 extending upward from the upper surface and positioned inside the protrusion 330 . The upper stopper 340 may extend upward from the upper surface of the housing 310 . The upper stopper 340 may be located inside the protrusion 330 . The upper stopper 340 may overlap the cover member 100 in the optical axis direction. When the housing 310 moves upward through such a structure, the upper stopper 340 and the cover member 100 contact each other, so that the movement of the housing 310 can be limited. That is, the upper stopper 340 may have a structure that mechanically limits the upper movement limit of the housing 310 .

The housing 310 may include a lateral support member accommodating portion 350 that accommodates the lateral support member 630 and is positioned inside the protrusion 330 . The lateral support member accommodating portion 350 may be formed by recessing a portion of a side surface of the housing 310 inward. The lateral support member accommodating portion 350 may accommodate the lateral support member 630 . The lateral support member accommodating part 350 may be located inside the protruding part 330 .

The size of the lateral support member accommodating portion 350 may be smaller at the portion where the stepped portion 360 is formed than at the upper end of the lateral support member accommodating portion 350 . That is, the size of the side support member accommodating portion 350 in the horizontal direction may be reduced by the stepped portion 360 in some sections. Through this structure, it is possible to prevent the first damper flowing down into the lateral support member accommodating portion 350 .

The driving magnet unit 320 may face the AF coil unit 220 . The driving magnet unit 320 may move the AF coil unit 220 through electromagnetic interaction with the AF coil unit 220 . The driving magnet part 320 may be located in the housing 310 . The driving magnet part 320 may be fixed to the second driving part coupling part 312 of the housing 310 . The drive magnet unit 320 may be disposed on the housing 310 such that four magnets are independently provided so that two adjacent magnets form a 90° angle to each other. That is, the drive magnet unit 320 may promote efficient use of the internal volume through magnets mounted on four sides of the housing 310 at equal intervals. In addition, the driving magnet unit 320 may be attached to the housing 310 by an adhesive. However, it is not limited thereto.

The stator 400 may be located on the base 500. The stator 400 may be located below the second mover 300 . The stator 400 may face the second mover 300 . The stator 400 may movably support the second mover 300 . The stator 400 can move the second mover 300 . At this time, the first mover 200 can also move together with the second mover 300 . In addition, through-holes 411 and 421 corresponding to the lens module may be located at the center of the stator 400 .

The stator 400 may include a substrate 410 and an OIS coil unit 420 as an example. The stator 400 may include a substrate 410 positioned between the OIS coil unit 420 and the base 500 . In addition, the stator 400 may include an OIS coil unit 420 facing the driving magnet unit 320 .

The substrate 410 may include a flexible printed circuit board (FPCB), which is a flexible printed circuit board. The substrate 410 may be positioned between the base 500 and the housing 310 . The substrate 410 may be positioned between the OIS coil unit 420 and the base 500 . The substrate 410 may supply power to the OIS coil unit 420 . The substrate 410 may supply power to the AF coil unit 220 . As an example, the substrate 410 may supply power to the AF coil unit 220 through the side support member 630 and the upper support member 610 . In addition, the substrate 410 may supply power to the AF sensor unit through the side support member 630 and the upper support member 610 .

The substrate 410 may include a through hole 411 and a terminal portion 412 as an example. The substrate 410 may include a through hole 411 through which light passing through the lens module passes. The substrate 410 may include a terminal portion 412 that is bent downward and exposed to the outside. At least a portion of the terminal unit 412 may be exposed to the outside and may be connected to an external power source, through which power may be supplied to the board 410 .

The OIS coil unit 420 may move the driving magnet unit 320 through electromagnetic interaction. The OIS coil unit 420 may be positioned on the substrate 410 . The OIS coil unit 420 may be located between the base 500 and the housing 310 . The OIS coil unit 420 may face the driving magnet unit 320 . When power is applied to the OIS coil unit 420, the housing 310 in which the driving magnet unit 320 and the driving magnet unit 320 are fixed by interaction between the OIS coil unit 420 and the driving magnet unit 320 It can move as a whole.

The OIS coil unit 420 may be formed of a patterned coil (FP coil, fine pattern coil) mounted on the substrate 410 . In this case, it can be effective in terms of miniaturization (reducing the height in the z-axis direction, which is the optical axis direction) of the lens driving device. The OIS coil unit 420, for example, may be formed to minimize interference with the OIS sensor unit 720 located at the lower side. The OIS coil unit 420 may be positioned so as not to overlap with the OIS sensor unit 720 in the vertical direction.

The OIS coil unit 420 may include a through hole 421 through which light of the lens module passes. The through hole 421 may have a diameter corresponding to that of the lens module. The through hole 421 of the OIS coil unit 420 may have a diameter corresponding to that of the through hole 411 of the substrate 410 . The through hole 421 of the OIS coil unit 420 may have a diameter corresponding to that of the through hole 510 of the base 500 . The through hole 421 may be circular as an example. However, it is not limited thereto.

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 second mover 300 . A printed circuit board may be positioned below the base 500 . The base 500 may perform a sensor holder function to protect an image sensor mounted on a printed circuit board.

The base 500 may include a through hole 510 , a foreign object collection unit 520 and a sensor mounting unit 530 .

The base 500 may include a through hole 510 formed at a position corresponding to the lens accommodating portion 211 of the bobbin 210 . Meanwhile, an infrared ray 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 foreign matter collecting unit 520 that collects foreign matter introduced into the cover member 100 . The foreign matter collecting unit 520 is located on the upper surface of the base 500 and can collect foreign matter on the inner space formed by the cover member 100 and the base 500, including an adhesive material.

The base 500 may include a sensor mounting portion 530 to which the OIS sensor unit 720 is coupled. That is, the OIS sensor unit 720 may be mounted on the sensor mounting unit 530 . At this time, the OIS sensor unit 720 may detect a horizontal movement or tilt of the housing 310 by detecting the driving magnet unit 320 coupled to the housing 310 . As an example, two sensor mounting units 530 may be provided. An OIS sensor unit 720 may be positioned on each of the two sensor mounting units 530 . In this case, the OIS sensor unit 720 may include a first-axis sensor and a second-axis sensor disposed to detect both movements of the housing 310 in the x-axis and y-axis directions.

The support member 600 may connect any two or more of the first mover 200 , the second mover 300 , the stator 400 and the base 500 . The support member 600 elastically connects any two or more of the first mover 200, the second mover 300, the stator 400, and the base 500 to allow relative movement between the respective components. support to make this possible. At least a portion of the support member 600 may be formed to have elasticity. In this case, the support member 600 may be referred to as an elastic member or a spring.

The support member 600 may include, for example, an upper support member 610, a lower support member 620, and a side support member 630. At this time, the upper support member 610 and the lower support member 620 may be referred to as 'auto focus spring', 'AF elastic member', and the like. In addition, the lateral support member 630 may be referred to as a 'hand shake compensating spring', an 'elastic member for OIS', and the like.

The upper support member 610 may be coupled to an upper portion of the housing 310 and an upper portion of the bobbin 210 . 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 At least a portion of the upper support member 610 may be positioned between the upper stopper 340 and the protrusion 330 .

The upper support member 610 may include an outer portion 611 , an inner portion 612 , a coupling portion 613 , a first connection portion 614 , and a second connection portion 615 . The upper support member 610 may include an inner portion 612 coupled to the bobbin 210 . The upper support member 610 may include an outer portion 611 coupled to the housing 310 . The upper support member 610 may include a coupling portion 613 coupled to the side support member 630 . The upper support member 610 may include a first connection portion 614 connecting the inner portion 612 and the outer portion 611 . The upper support member 610 may include a second connection portion 615 connecting the outer portion 611 and the coupling portion 613 .

The outer portion 611 may be coupled to the housing 310 . The inner part 612 may be coupled to the bobbin 210 . The coupling part 613 may be coupled with the lateral support member 630 . A first damper may be positioned at the coupling part 613 . The first connection portion 614 may connect the inner portion 612 and the outer portion 611 . The second connection portion 615 may connect the outer portion 611 and the coupling portion 613 . The second connection portion 615 may be bent multiple times.

The upper support members 610, as an example, may be provided separately as a pair and used to supply power to the AF coil unit 220. The upper support member 610 may include a first upper support unit 616 and a second upper support unit 617 spaced apart from each other. The first upper support unit 616 may be electrically connected to one end of the AF coil unit 220 , and the second upper support unit 617 may be electrically connected to the other end of the AF coil unit 220 . The upper support member 610 may supply power to the AF coil unit 220 through such a structure. The upper support member 610 may receive power from the substrate 410 through the side support member 630 .

The upper support member 610 may include a fusion groove 618 . The fusion groove 618 may be formed on the outer portion 611 . The fusion groove 618 may extend from a hole in which the protrusion of the housing 310 is accommodated. Through this structure, when the projections of the housing 310 are thermally fused in a state where the holes of the upper support member 610 are inserted into the projections of the housing 310, a portion of the thermally fused portion is in the fusion groove 618. Rotation of the outer portion 611 may be prevented by being inserted.

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 include 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 integrally formed as an example. However, it is not limited thereto. As a modified example, the lower support members 620 may be provided separately as a pair and used to supply power to the AF coil unit 220 and the like.

The lateral support member 630 may elastically support the housing 310 with respect to the base 500 . One side of the side support member 630 may be coupled to the stator 400 and/or the base 500 and the other side may be coupled to the upper support member 610 and/or the housing 310 . The side support member 630 may be coupled to the stator 400 and the upper support member 610 . One side of the side support member 630 may be coupled to the stator 400 and the other side may be coupled to the upper support member 610 . Through this structure, the lateral support member 630 elastically moves the second mover 300 relative to the stator 400 so that the second mover 300 can move or tilt in the horizontal direction. support The lateral support member 630 may include a plurality of wires as an example. Alternatively, the lateral support member 630 may include a plurality of plate springs as a modified example. Meanwhile, the side support member 630 may be integrally formed with the upper support member 610 .

The side support member 630 may be electrically connected to the substrate 410 at one end and electrically connected to the upper support member 610 at the other end. As an example, four side support members 630 may be provided. That is, the lateral support member 630 may include first to fourth lateral support units 631, 632, 633, and 634 spaced apart from each other. The lateral support member 630 may include a first lateral support unit 631 positioned at the first corner portion 305 of the housing 310 . The lateral support member 630 may include a second lateral support unit 632 positioned at the second corner portion 306 of the housing 310 . The lateral support member 630 may include a third lateral support unit 633 positioned at the third corner portion 307 of the housing 310 . The lateral support member 630 may include a fourth lateral support unit 634 positioned at the fourth corner portion 308 of the housing 310 . That is, the first to fourth lateral support units 631, 632, 633, and 634 may be continuously disposed adjacent to each other. However, the number of side support members 630 is not limited thereto.

The side support member 630 or the upper support member 610 may include a shock absorber (not shown) for absorbing shock. The shock absorber may be provided on any one or more of the lateral support member 630 and the upper support member 610 . The shock absorber may be a separate member such as a damper. Alternatively, the shock absorber may be implemented by changing the shape of one or more parts of the side support member 630 and the upper support member 610 .

The sensor unit may be provided for at least one of auto focus feedback and hand shake correction feedback. The sensor unit may detect the position or movement of one or more of the first mover 200 and the second mover 300 .

The sensor unit may include an AF sensor unit and an OIS sensor unit 720 as an example. The AF sensor unit may provide information for AF feedback by sensing a relative vertical movement of the bobbin 210 with respect to the housing 310 . The OIS sensor unit 720 may sense horizontal motion or tilt of the second mover 300 and provide information for OIS feedback.

The AF sensor unit may include, for example, an AF sensor (not shown), a sensor substrate (not shown), and a sensing magnet (not shown). The AF sensor may be disposed above the housing 310 . At this time, the sensing magnet may be disposed above the bobbin 210 . The AF sensor may be disposed in the housing 310 while being mounted on a sensor substrate. The AF sensor may detect the position or movement of the bobbin 210 by sensing a sensing magnet disposed on the bobbin 210 . The AF sensor may be a hall sensor that senses the magnetic force of the sensing magnet. However, it is not limited thereto.

The OIS sensor unit 720 may be located on the stator 400 . The OIS sensor unit 720 may be located on an upper or lower surface of the substrate 410 . The OIS sensor unit 720, for example, may be disposed on the lower surface of the substrate 410 and located on the sensor mounting unit 530 formed on the base 500. The OIS sensor unit 720 may include a hall sensor as an example. In this case, the relative motion of the second mover 300 with respect to the stator 400 may be sensed by sensing the magnetic field of the drive magnet unit 320 . The OIS sensor unit 720 can sense both the x-axis and y-axis movements of the second mover 300, including, for example, a first-axis sensor and a second-axis sensor. Meanwhile, the OIS sensor unit 720 may be positioned so as not to overlap the FP coil of the OIS coil unit 420 in the vertical direction.

A first damper (not shown) may be applied to the lateral support member 630 . The first damper may be located on any one or more of the coupling part 613, the lateral support member 630, and the housing 310. Through this structure, the first damper can prevent a resonance phenomenon (oscillation phenomenon at a resonance frequency) of the support member 600 that may occur in the OIS feedback process. At this time, the first damper may be located inside the protrusion 330 of the housing 310 . In this case, since the protrusion 330 prevents the first damper from falling outward, the first damper can be managed more efficiently.

The second damper (not shown) may be located on the protrusion 215 of the bobbin 210 and the inner portion 612 of the upper support member 610 . Through this structure, the first damper can prevent a resonance phenomenon of the support member 600 that may occur in the process of AF feedback and/or OIS feedback.

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

First, the auto focus function of the camera module according to the present embodiment will be described. When power is supplied to the AF coil unit 220, the AF coil unit 220 moves with respect to the driving magnet unit 320 due to electromagnetic interaction between the AF coil unit 220 and the driving magnet unit 320. will perform At this time, the bobbin 210 to which the AF coil unit 220 is coupled moves integrally with the AF coil unit 220 . That is, the bobbin 210 coupled to the inside of the lens module moves in the optical axis direction (up and down direction, vertical 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 AF coil unit 220 to perform focus adjustment on the subject. It can be done.

Meanwhile, in the camera module according to the present embodiment, auto focus feedback may be applied for more precise realization of the auto focus function. The AF sensor disposed in the housing 310 and provided as a hall sensor senses a magnetic field of a sensing magnet fixed to the bobbin 210 . Accordingly, when the bobbin 210 moves relative to the housing 310, the amount of magnetic field sensed by the AF sensor changes. The AF sensor detects the movement amount of the bobbin 210 in the z-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.

A hand shake correction function of the camera module according to the present embodiment will be described. When power is supplied to the OIS coil unit 420, the driving magnet unit 320 moves with respect to the OIS coil unit 420 due to electromagnetic interaction between the OIS coil unit 420 and the driving magnet unit 320. will do At this time, the housing 310 to which the driving magnet unit 320 is coupled moves integrally with the driving magnet unit 320 . That is, the housing 310 moves in a horizontal direction with respect to the base 500 . However, a tilt of the housing 310 with respect to the base 500 may be induced. Meanwhile, the bobbin 210 moves integrally with the housing 310 . Therefore, since such movement of the housing 310 results in movement of the lens module in a direction parallel to the direction in which the image sensor is placed with respect to the image sensor (direction perpendicular to the optical axis, horizontal direction), in this embodiment, the OIS Power is supplied to the OIS coil unit of the coil unit 420 to perform the hand shake correction function.

Meanwhile, hand shake correction feedback may be applied to more precisely realize the hand shake correction function of the camera module according to the present embodiment. A pair of OIS sensor units 720 mounted on the base 500 and provided as hall sensors sense the magnetic field of the drive magnet unit 320 fixed to the housing 310 . Accordingly, when the housing 310 moves relative to the base 500, the amount of the magnetic field sensed by the OIS sensor unit 720 changes. The pair of OIS sensor units 700 detect the amount or position of the horizontal direction (x-axis and y-axis directions) of the housing 310 in this way and transmit the detected value to the control unit. The control unit determines whether or not to additionally move the housing 310 through the received sensing value. Since this process occurs in real time, the hand shake correction function of the camera module according to the present embodiment can be performed more precisely through hand shake correction feedback.

Hereinafter, the configuration of a lens driving device according to a modified example of the present invention will be described with reference to the drawings.

6 is a perspective view showing a part of a lens driving device according to a modified example of the present embodiment.

Referring to FIG. 6 , the lens driving device according to the modified example includes a cover member 100, a first mover 200, a second mover 300, a stator 400, a base 500, a support member ( 600) and a sensor unit (not shown). Here, the description of the cover member 100, the first mover 200, the second mover 300, the stator 400, the base 500, the support member 600, and the sensor unit (not shown) The above description of this embodiment can be applied. However, the modified example is different from the present embodiment in the shape of the housing 310 of the second mover 300 and the number of side support members 630 of the support member 600.

The housing 310 of the modified example may include a stepped portion 360 protruding from the side of the housing 310 forming the lateral support member accommodating portion 350 . The stepped portion 360 may protrude from the side of the housing 310 forming the lateral support member accommodating portion 350 . That is, the stepped portion 360 may be formed in a partial section of the lateral support member accommodating portion 350 to reduce the diameter of the lateral support member accommodating portion 350 . The stepped portion 360 may prevent the first damper from falling downward along the lateral support member accommodating portion 350 . That is, the stepped portion 360 can function as a structure for preventing the damper from falling off.

In a modified example, the lateral support member 630 may be separated into eight pieces. At this time, the lateral support member accommodating portion 350 accommodating the lateral support member 630 and the coupling portion 613 of the upper support member 610 coupled to the lateral support member 630 may also be separated into eight pieces.

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: first mover
300: second mover 400: stator
500: base 600: support member

Claims (15)

circuit board;
a housing disposed on the circuit board;
a bobbin disposed inside the housing;
a magnet disposed in the housing;
a first coil disposed on the bobbin and facing the magnet;
an upper support member coupled to an upper portion of the housing and an upper portion of the bobbin;
a side support member coupled to the upper support member and electrically connected to the circuit board; and
Including a damper disposed on the lateral support member and the housing,
the housing,
a protrusion extending upward from the upper surface of the housing and positioned outside the lateral support member; and
And an upper stopper extending upward from the upper surface of the housing and located inside the lateral support member,
The uppermost end of the protrusion is lower than the uppermost end of the upper stopper,
The damper is disposed inside the protruding portion of the housing. According to claim 1,
The upper support member,
an inner part coupled to the upper part of the bobbin;
an outer portion coupled to the upper portion of the housing;
a coupling portion coupled to the lateral support member;
a first connecting portion connecting the inner portion and the outer portion; and
And a second connection portion connecting the outer portion and the coupling portion,
At least a portion of the second connection portion is positioned between the upper stopper and the protruding portion. According to claim 1,
The uppermost end of the protruding portion is positioned higher than the upper support member. According to claim 1,
The protruding portion and the upper stopper are disposed at corner portions of the housing. According to claim 1,
The damper is a lens driving device disposed outside the upper stopper. According to claim 1,
The housing includes a receiving portion in which a portion of a side surface of the housing is recessed to accommodate a portion of the lateral support member,
The accommodating portion is positioned inside the protruding portion. According to claim 6,
A part of the damper is located in the accommodating portion of the housing. According to claim 1,
The lens driving device wherein the lateral support member is a wire. According to claim 6,
The accommodating part includes a first area and a second area positioned below the first area, and a terminal part having a step difference from the first area is formed in the second area,
A size of the second area in the horizontal direction is smaller than a size of the first area in the horizontal direction. According to claim 6,
The accommodating part includes a first accommodating part and a second accommodating part formed spaced apart from each other at the corner part of the housing,
The lateral support member includes a first wire partially disposed within the first accommodating portion and a second wire partially disposed within the second accommodating portion. According to claim 1,
The housing includes four corner portions,
The protruding portion is disposed at each of the four corner portions of the housing. According to claim 1,
A lens driving device in which the protrusion and the stopper overlap in a direction from an optical axis toward the protrusion. According to claim 1,
A lens driving device including a second coil that faces the magnet and moves the housing by interaction with the magnet. circuit board;
a housing disposed on the circuit board;
a bobbin disposed inside the housing;
a magnet disposed in the housing;
a first coil disposed on the bobbin and facing the magnet;
an upper support member coupled to an upper portion of the housing and an upper portion of the bobbin;
a side support member coupled to the upper support member and electrically connected to the circuit board; and
Including a damper disposed on the side support member and the housing,
the housing,
a protrusion extending upward from the upper surface of the housing and positioned outside the lateral support member;
an upper stopper extending upward from the upper surface of the housing and positioned inside the lateral support member; and
In order to accommodate a part of the lateral support member, a part of the side of the housing includes a recessed accommodating part, the accommodating part is located inside the protruding part and disposed outside the upper stopper,
The damper is disposed inside the protrusion and outside the upper stopper. circuit board;
a housing disposed on the circuit board;
a bobbin disposed inside the housing;
a magnet disposed in the housing;
a first coil disposed on the bobbin and facing the magnet;
an upper support member coupled to an upper portion of the housing and an upper portion of the bobbin;
a side support member coupled to the upper support member and electrically connected to the circuit board; and
Including a damper disposed on the side support member and the housing,
The housing includes a receiving portion in which a portion of a side surface of the housing is recessed to accommodate a portion of the lateral support member,
The accommodating part includes a first area and a second area positioned below the first area, and a stepped portion having a step difference from the first area is formed in the second area,
A lens driving device wherein a portion of the damper is disposed within the accommodating portion.

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