Lens driving device, camera device, and optical instrument

Abstract

The present embodiment relates to a lens driving device comprising: a base; a first carrier disposed on the base; a second carrier disposed in the first carrier; a first driving unit for moving the first carrier in a direction perpendicular to an optical axis direction; a second driving unit for moving the second carrier in the optical axis direction; an elastic member coupled to the first carrier; a wire coupled to the elastic member; and a first ball disposed between the base and the first carrier.

Description

Lens actuators, camera devices and optical instruments

[0001] The present embodiment relates to a lens driving device, a camera device, and an optical device.

[0002] A camera device is a device that takes pictures or videos of a subject, and is installed in optical devices such as smartphones, drones, and vehicles.

[0003] Camera devices feature an autofocus function that automatically adjusts focus based on the distance to the subject. They also feature image stabilization to prevent focus fluctuations caused by hand tremors.

[0004] However, in order to place the magnets and coils for performing the autofocus function and image stabilization function, a size larger than the thickness of the smartphone in the optical axis direction is required, which causes the camera device mounted on the smartphone to protrude more than other parts of the smartphone.

[0005] (Patent Document 1) KR 10-2015-0118005 A

[0006] The present embodiment seeks to provide a camera device having an autofocus function and an image stabilization function, while having a minimized size in the optical axis direction.

[0007] Furthermore, we aim to provide a camera device to which a large-diameter lens can be applied.

[0008] A lens driving device according to the present embodiment may include: a base; a first carrier disposed on the base; a second carrier disposed within the first carrier; a first driving unit that moves the first carrier in a direction perpendicular to an optical axis direction; a second driving unit that moves the second carrier in the optical axis direction; an elastic member coupled to the first carrier; a wire coupled to the elastic member; and a first ball disposed between the base and the first carrier.

[0009] The above elastic member and the above wire can press the first carrier toward the first ball and the base.

[0010] The first ball is arranged on the upper surface of the base and the lower surface of the first carrier, at least a portion of the elastic member is coupled to the upper surface of the first carrier, the upper end of the wire is coupled to the elastic member, and the lower end of the wire can be coupled to the base.

[0011] The above base includes a body and a metal insert member fixed to the body, and the first ball can be in direct contact with the insert member.

[0012] The above wire can be directly connected to the above insert member.

[0013] The lens driving device may include a first substrate disposed on the base, and the first driving unit may include a first magnet and a second magnet disposed on the first carrier, a first coil disposed on the first substrate at a position corresponding to the first magnet, and a second coil disposed on the first substrate at a position corresponding to the second magnet.

[0014] The above lens driving device may include a second substrate arranged on the first carrier, and the second driving unit may include a third magnet arranged on the second carrier and a third coil arranged on the second substrate.

[0015] The above third coil can move together with the above first carrier.

[0016] The above elastic member includes first to fourth elastic members spaced apart from each other, the wire includes a first wire coupled to the first elastic member, a second wire coupled to the second elastic member, a third wire coupled to the third elastic member, and a fourth wire coupled to the fourth elastic member, and the first to fourth elastic members can be electrically connected to the second substrate.

[0017] The base includes a metal insert member, and the insert member includes first to fourth insert members spaced apart from each other, the first insert member is coupled with the first wire, the second insert member is coupled with the second wire, the third insert member is coupled with the third wire, and the fourth insert member can be coupled with the fourth wire.

[0018] The base includes a first side and a second side which are disposed opposite to each other, and a third side and a fourth side which are disposed opposite to each other, the second substrate is disposed closest to the first side among the first to fourth sides of the base, and the ends of the first to fourth insert members can be disposed on the second side of the base.

[0019] Each of the second insert member and the third insert member may include a coupling portion coupled to the wire, a first pad portion and a second pad portion on which the first ball is arranged, a first connecting portion connecting the coupling portion and the first pad portion, a second connecting portion connecting the first pad portion and the second pad portion, and an extension portion extending from the second pad portion to the outside of the base.

[0020] The lens actuator includes a second ball disposed between the first carrier and the second carrier, and the second ball may include a plurality of balls overlapping in the optical axis direction.

[0021] A camera device according to the present embodiment may include a printed circuit board; an image sensor disposed on the printed circuit board; the lens driving device disposed on the printed circuit board; and a lens coupled to the lens driving device.

[0022] An optical device according to the present embodiment may include a main body; the camera device disposed in the main body; and a display disposed in the main body and outputting at least one of an image and an image captured by the camera device.

[0023] Through this embodiment, an autofocus function and an image stabilization function can be performed in a camera device with a size minimized in the optical axis direction.

[0024] The camera device according to the present embodiment may not protrude from the smartphone. Alternatively, the camera device according to the present embodiment may protrude minimally from the smartphone.

[0025] Furthermore, through this embodiment, a camera device with a minimized size in the horizontal and vertical directions perpendicular to the optical axis can be provided.

[0026] In addition, the auto focus function and shake correction function can operate normally even when a large-diameter, heavy lens is applied through the camera device of the present embodiment.

[0027] Fig. 1 is a perspective view of a lens driving device according to the present embodiment.

[0028] Figure 2 is a cross-sectional view taken along line AA of Figure 1.

[0029] Figure 3 is a cross-sectional view viewed from BB in Figure 1.

[0030] Fig. 4 is a cross-sectional view of a lens driving device according to the present embodiment, cut perpendicular to the optical axis and viewed from above.

[0031] Fig. 5 is an exploded perspective view of a lens driving device according to the present embodiment.

[0032] Fig. 6 is a perspective view of a lens driving device according to the present embodiment with the cover omitted.

[0033] Fig. 7 is a plan view showing the base and related configuration of the lens driving device according to the present embodiment.

[0034] Fig. 8 is a partial perspective view showing the joint structure of the elastic member, wire, and insert member of the lens driving device according to the present embodiment.

[0035] Fig. 9 is a perspective view showing the joint structure of the elastic member and the substrate of the lens driving device according to the present embodiment.

[0036] Fig. 10 is a perspective view showing an elastic member of a lens driving device according to the present embodiment.

[0037] Fig. 11 is a partial perspective view showing a moving part of a lens driving device according to the present embodiment.

[0038] Fig. 12 is a perspective view showing the AF carrier and related configuration of the lens driving device according to the present embodiment.

[0039] Fig. 13 is a perspective view showing the OIS carrier and related configuration of the lens driving device according to the present embodiment.

[0040] Fig. 14 is a bottom perspective view showing the OIS carrier and related configuration of the lens driving device according to the present embodiment.

[0041] Fig. 15 is a perspective view showing the driving unit and related configuration of the lens driving device according to the present embodiment.

[0042] Fig. 16 is a bottom perspective view showing the driving unit and related configuration of the lens driving device according to the present embodiment.

[0043] Fig. 17 is a drawing for explaining auto focus driving of a lens driving device according to the present embodiment.

[0044] Fig. 18 is a drawing for explaining the shake correction operation of the lens driving device according to the present embodiment.

[0045] Fig. 19 is an exploded perspective view of a camera device according to the present embodiment.

[0046] Fig. 20 is a perspective view of an optical device according to the present embodiment.

[0047] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0048] However, the technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of ​​the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.

[0049] In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0050] Additionally, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.

[0051] In this specification, the singular may also include the plural unless specifically stated otherwise in the phrase, and when it is described as “A and / or at least one (or more) of B, C”, it may include one or more of all combinations that can be combined with A, B, C.

[0052] Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and are not intended to limit the nature, order, or sequence of the components.

[0053] And, when a component is described as being 'connected', 'coupled', or 'connected' to another component, it may include not only cases where the component is 'connected', 'coupled', or 'connected' directly to the other component, but also cases where the component is 'connected', 'coupled', or 'connected' by another component between the component and the other component.

[0054] Additionally, when described as being formed or arranged "above" or "below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when expressed as "above" or "below," the meaning may include not only the upward direction but also the downward direction based on one component.

[0055] The 'optical axis (see OA in Fig. 17) direction' used below is defined as the optical axis direction of a lens and / or image sensor coupled to a lens driving device.

[0056] The 'vertical direction' used below may be a direction parallel to or the same direction as the optical axis direction. The vertical direction may correspond to the 'z-axis direction'. The 'horizontal direction' used below may be a direction perpendicular to the vertical direction. That is, the horizontal direction may be a direction perpendicular to the optical axis. Therefore, the horizontal direction may include the 'x-axis direction' and the 'y-axis direction'.

[0057] The 'auto focus (AF) function' used below is defined as a function that automatically focuses on a subject by adjusting the distance from the image sensor by moving the lens in the optical axis direction according to the distance of the subject so that a clear image of the subject can be obtained on the image sensor. In addition, 'closed-loop auto focus (CLAF) control' is defined as a function that detects the distance between the image sensor and the lens and provides feedback control of the position of the lens in real time to improve the accuracy of focus adjustment.

[0058] The term "optical image stabilization (OIS) function" used below is defined as a function that moves or tilts the lens in a direction perpendicular to the optical axis to compensate for hand shake in order to prevent images or videos from shaking due to the user's hand shake. In addition, "closed-loop auto focus (CLAF) control" is defined as a function that detects the position of the lens with respect to the image sensor and provides real-time feedback control of the lens position to improve the accuracy of hand shake correction.

[0059] Hereinafter, one of the “AF moving part (200)” and the “OIS moving part (300)” may be referred to as the “first moving part” and the other may be referred to as the “second moving part”.

[0060] Hereinafter, one of the “AF carrier (210)” and the “OIS carrier (310)” may be referred to as the “first carrier” and the other may be referred to as the “second carrier”.

[0061] Hereinafter, one of the “AF driving unit (400)” and the “OIS driving unit (500)” may be referred to as the “first driving unit” and the other may be referred to as the “second driving unit”.

[0062] Hereinafter, one of the “AF magnet (410)”, the “OIS-x magnet (510)”, and the “OIS-y magnet (540)” may be referred to as the “first magnet”, the other may be referred to as the “second magnet”, and the other may be referred to as the “third magnet”.

[0063] Hereinafter, one of the “AF coil (420)”, the “OIS-x coil (520)”, and the “OIS-y coil (550)” may be referred to as the “first coil”, the other may be referred to as the “second coil”, and the other may be referred to as the “third coil”.

[0064] Hereinafter, one of the “AF sensor (430)”, the “OIS-x sensor (530)”, and the “OIS-y sensor (560)” may be referred to as the “first sensor”, the other may be referred to as the “second sensor”, and the other may be referred to as the “third sensor”.

[0065] Hereinafter, one of the “AF guide ball (810)” and the “OIS guide ball (820)” may be referred to as the “first ball” and the other may be referred to as the “second ball.”

[0066] Hereinafter, one of the “substrate (130)” and the “substrate (320)” may be referred to as the “first substrate” and the other may be referred to as the “second substrate”.

[0067]

[0068] Below, the configuration of the lens driving device according to the present embodiment is described with reference to the drawings.

[0069] Fig. 1 is a perspective view of a lens driving device according to the present embodiment. Fig. 2 is a cross-sectional view taken along line AA of Fig. 1. Fig. 3 is a cross-sectional view taken along line BB of Fig. 1. Fig. 4 is a cross-sectional view taken along line AA of Fig. 1. Fig. 4 is a cross-sectional view taken along line BB of Fig. 1. Fig. 5 is an exploded perspective view of a lens driving device according to the present embodiment when cut perpendicular to the optical axis and viewed from above. Fig. 5 is an exploded perspective view of a lens driving device according to the present embodiment. Fig. 6 is a perspective view of a lens driving device according to the present embodiment with a cover omitted. Fig. 7 is a plan view showing a base and related components of a lens driving device according to the present embodiment. Fig. 8 is a partial perspective view showing a joint structure of an elastic member, a wire, and an insert member of a lens driving device according to the present embodiment. Fig. 9 is a perspective view showing a joint structure of an elastic member and a substrate of a lens driving device according to the present embodiment. Fig. 10 is a perspective view showing an elastic member of a lens driving device according to the present embodiment. Fig. 11 is a partial perspective view illustrating a moving part of a lens driving device according to the present embodiment. Fig. 12 is a perspective view illustrating an AF carrier and related components of a lens driving device according to the present embodiment. Fig. 13 is a perspective view illustrating an OIS carrier and related components of a lens driving device according to the present embodiment. Fig. 14 is a bottom perspective view illustrating an OIS carrier and related components of a lens driving device according to the present embodiment. Fig. 15 is a perspective view illustrating a driving part and related components of a lens driving device according to the present embodiment. Fig. 16 is a bottom perspective view illustrating a driving part and related components of a lens driving device according to the present embodiment.

[0070] The lens driving device (10) may be a voice coil motor (VCM). The lens driving device (10) may be a lens driving motor. The lens driving device (10) may be a lens driving actuator. The lens driving device (10) may include an AF module. The lens driving device (10) may include an OIS module.

[0071] The lens actuator (10) may include a fixed part (100). The fixed part (100) may movably support the moving part (200, 300).

[0072] The lens driving device (10) may include a base (110). The fixing member (100) may include the base (110). The base (110) may form the lower outer periphery of the lens driving device (10). The base (110) may be fixed during AF operation and OIS operation.

[0073] The base (110) may include a first side and a second side that are positioned opposite to each other, and a third side and a fourth side that are positioned opposite to each other. The substrate (320) may be positioned closest to the first side among the first to fourth sides of the base (110). Ends of the first to fourth insert members (112-1, 12-2, 112-3, 112-4) may be positioned on the second side of the base (110).

[0074] The base (110) may include a body (111). The body (111) may be formed as an injection molded product. An insert member (112) may be arranged in the body (111).

[0075] The base (110) may include a lower plate (111a). The body (111) may include a lower plate (111a). A substrate (130) may be placed on the lower plate (111a). A manpower yoke (840) may be placed on the lower plate (111a).

[0076] The base (110) may include a pillar portion (111b). The body (111) may include a pillar portion (111b). The pillar portion (111b) may extend from the lower plate (111a). The pillar portion (111b) may extend from a corner region of the upper surface of the lower plate (111a).

[0077] The base (110) may include an insert member (112). The insert member (112) may be disposed in the body (111). The insert member (112) may be disposed within the body (111). The insert member (112) may be disposed within the body (111) through insert injection. The insert member (112) may be fixed to the body (111). The insert member (112) may be coupled to the body (111). The insert member (112) may reinforce the strength of the base (110). The insert member (112) may be formed of metal.

[0078] The insert member (112) may include a plurality of insert members. The insert member (112) may include four insert members. The insert member (112) may include first to fourth insert members (112-1, 112-2, 112-3, 112-4). The first to fourth insert members (112-1, 112-2, 112-3, 112-4) may be spaced apart from each other. The first insert member (112-1) may be coupled to the first wire (700-1). The second insert member (112-2) may be coupled to the second wire (700-2). The third insert member (112-3) may be coupled to the third wire (700-3). The fourth insert member (112-4) can be combined with the fourth wire (700-4).

[0079] The second insert member (112-2) may include a connecting portion (112a). The connecting portion (112a) may be connected to a wire (700). The connecting portion (112a) may include a hole through which the wire (700) passes. The connecting portion (112a) may be connected to the wire (700) through solder. The connecting portion (112a) may be formed in a circular shape.

[0080] The second insert member (112-2) may include a first pad portion (112b). An OIS guide ball (820) may be arranged in the first pad portion (112b). The first pad portion (112b) may be formed wider than the first connecting portion (112d).

[0081] The second insert member (112-2) may include a second pad portion (112c). An OIS guide ball (820) may be arranged in the second pad portion (112c). The second pad portion (112c) may be formed wider than the second connecting portion (112e).

[0082] The second insert member (112-2) may include a first connecting portion (112d). The first connecting portion (112d) may connect the joining portion (112a) and the first pad portion (112b).

[0083] The second insert member (112-2) may include a second connecting portion (112e). The second connecting portion (112e) may connect the first pad portion (112b) and the second pad portion (112c).

[0084] The second insert member (112-2) may include an extension portion (112f). The extension portion (112f) may extend from the second pad portion (112c) to the outside of the base (110). The extension portion (112f) may be a terminal portion. The end of the extension portion (112f) may be a terminal. The end of the extension portion (112f) may be coupled to a terminal of a printed circuit board (50).

[0085] The lens actuator (10) may include a cover (120). The fixing member (100) may include the cover (120). The cover (120) may be placed on the base (110). The cover (120) may be placed on the base (110). The cover (120) may be coupled to the base (110). The cover (120) may be fixed to the base (110). The cover (120) may be adhesively bonded to the base (110). The cover (120) may accommodate an AF carrier (210) therein. The cover (120) may accommodate an OIS carrier (310) therein. The cover (120) may be a shield member. The cover (120) may be a shield can.

[0086] The cover (120) may include a top plate (121). The top plate (121) may be placed on the moving part (200, 300). The upward movement of the AF carrier (210) may be limited by the AF carrier (210) coming into contact with the top plate (121). The top plate (121) may include a hole through which light passes.

[0087] The cover (120) may include a side plate (122). The side plate (122) may extend from the top plate (121). The side plate (122) may be disposed on the base (110). The side plate (122) may be disposed on a step portion that protrudes from the lower portion of the outer surface of the base (110). The side plate (122) may include a plurality of side plates. The side plate (122) may include four side plates. The side plate (122) may include a first side plate and a second side plate that are disposed opposite each other, and a third side plate and a fourth side plate that are disposed opposite each other.

[0088] The lens driving device (10) may include a substrate (130). The fixing member (100) may include the substrate (130). The substrate (130) may be disposed on the base (110). The substrate (130) may be disposed on the lower plate (111a) of the base (110). The substrate (130) may be disposed on the upper surface of the lower plate (111a) of the base (110). The substrate (130) may be disposed perpendicular to the optical axis. The substrate (130) may be a circuit board. The substrate (130) may be a printed circuit board. The substrate (130) may include a flexible printed circuit board (FPCB). The substrate (130) may be flexible. The substrate (130) may be foldable. The OIS-x coil (520) may be disposed on the substrate (130). The OIS-x coil (520) may be disposed on the upper surface of the substrate (130). The OIS-x sensor (530) may be disposed on the substrate (130). The OIS-x sensor (530) may be disposed on the upper surface of the substrate (130). The OIS-y coil (550) may be disposed on the substrate (130). The OIS-y coil (550) may be disposed on the upper surface of the substrate (130). The OIS-y sensor (560) may be disposed on the substrate (130). The OIS-y sensor (560) may be disposed on the upper surface of the substrate (130).

[0089] The substrate (130) may include a body portion disposed on the upper surface of the base (110) and a terminal portion disposed on the side of the base (110).

[0090] The substrate (130) may include a terminal (131). The terminal (131) may be formed in a terminal portion that extends downwardly from the outer edge of the body portion of the substrate (130).

[0091] The terminal (131) may include a plurality of terminals. The terminal (131) of the substrate (130) may include a first terminal electrically connected to the OIS-x coil (520). The terminal (131) of the substrate (130) may include a second terminal electrically connected to the OIS-x sensor (530). The terminal (131) of the substrate (130) may include a third terminal electrically connected to the OIS-y coil (550). The terminal (131) of the substrate (130) may include a fourth terminal electrically connected to the OIS-y sensor (560). The terminal (131) may be coupled to the printed circuit board (50). The terminal (131) may be coupled to the printed circuit board (50) via solder. The terminal (131) may be coupled to the printed circuit board (50) via a conductive member.

[0092] The lens driving device (10) may include a moving part (200, 300). The moving part (200, 300) may be placed on the fixed part (100). The moving part (200, 300) may be placed inside the fixed part (100). The moving part (200, 300) may be placed on the fixed part (100). The moving part (200, 300) may be movably placed on the fixed part (100). The moving part (200, 300) may be moved relative to the fixed part (100) by the driving part. A lens may be coupled to the moving part (200, 300).

[0093] The lens driving device (10) may include an AF moving unit (200). The AF moving unit (200) may be disposed on the fixed unit (100). The AF moving unit (200) may be disposed within the fixed unit (100). The AF moving unit (200) may be disposed on the fixed unit (100). The AF moving unit (200) may be disposed within the OIS moving unit (300). The AF moving unit (200) may be disposed on the OIS moving unit (300). The AF moving unit (200) may be disposed to be movable. The AF moving unit (200) may be movable. The AF moving unit (200) may be movable in the optical axis direction. The AF moving unit (200) may be movable in the optical axis direction with respect to the fixed unit (100) and the OIS moving unit (300) by the AF driving unit (400). The AF moving part (200) can move when the AF is driven.

[0094] The lens driving device (10) may include an AF carrier (210). The AF moving unit (200) may include the AF carrier (210). The AF carrier (210) may be a 'bobbin'. The AF carrier (210) may be an 'AF holder'. The AF carrier (210) may be placed within the base (110). The AF carrier (210) may be placed on the base (110). The AF carrier (210) may be placed within the OIS carrier (310). The AF carrier (210) may be placed on the OIS carrier (310). The AF carrier (210) may be placed within the cover (120). The AF carrier (210) may be placed to be movable in the optical axis direction. The AF carrier (210) is movable. The AF carrier (210) is movable in the optical axis direction.

[0095] The AF carrier (210) may include a groove. The groove may be an "AF guide ball receiving groove." An AF guide ball (810) may be placed in the groove. The groove may be in direct contact with the AF guide ball (810). The groove may include multiple grooves. The groove may include two grooves.

[0096] The AF carrier (210) may include a groove. The groove may be an 'AF magnet receiving groove.' The groove may be formed on the outer surface of the AF carrier (210). An AF magnet (410) may be placed in the groove. The groove may be formed in a shape corresponding to the AF magnet (410).

[0097] The lens driving device (10) may include an OIS moving unit (300). The OIS moving unit (300) may be disposed on the fixed unit (100). The OIS moving unit (300) may be disposed within the fixed unit (100). The OIS moving unit (300) may be disposed on the fixed unit (100). The OIS moving unit (300) may be disposed between the fixed unit (100) and the AF moving unit (200). The OIS moving unit (300) may be disposed to be movable. The OIS moving unit (300) may move in the x-axis direction with respect to the fixed unit (100) by the OIS-x driving unit (500a). The OIS moving unit (300) may move in the y-axis direction with respect to the fixed unit (100) by the OIS-y driving unit (500b).

[0098] The lens driving device (10) may include an OIS carrier (310). The OIS moving unit (300) may include the OIS carrier (310). The OIS carrier (310) may be a 'housing'. The OIS carrier (310) may be an 'OIS holder'. The OIS carrier (310) may be placed within the base (110). The OIS carrier (310) may be placed on the base (110). The OIS carrier (310) may be placed within the cover (120). The OIS carrier (310) may be placed between the base (110) and the AF carrier (210). The OIS carrier (310) may be placed between the cover (120) and the AF carrier (210). The OIS carrier (310) may be placed to be movable in the x-axis direction and the y-axis direction. The OIS carrier (310) can be arranged to be movable in a direction perpendicular to the optical axis.

[0099] The lens driving device (10) may include a substrate (320). The OIS moving unit (300) may include the substrate (320). The substrate (320) may be disposed on the OIS carrier (310). The substrate (320) may be disposed on the outer surface of the OIS carrier (310). The substrate (320) may be disposed on the side surface of the OIS carrier (310). The substrate (320) may be disposed parallel to the optical axis. The substrate (320) may be a circuit board. The substrate (320) may be a printed circuit board. The substrate (320) may include an FPCB (Flexible printed circuit board). The substrate (320) may be flexible. The substrate (320) may include a terminal (321). The terminal (321) may include four terminals.

[0100] The lens driving device (10) may include a driving unit (400, 500). The driving unit (400, 500) may move the moving unit (200, 300) relative to the fixed unit (100). The driving unit (400, 500) may include a coil and a magnet.

[0101] The lens driving device (10) may include an AF driving unit (400). The AF driving unit (400) may move the AF moving unit (200) in the optical axis direction. The AF driving unit (400) may move the AF carrier (210) in the optical axis direction.

[0102] The lens driving device (10) may include an AF magnet (410). The AF driving unit (400) may include an AF magnet (410). The AF magnet (410) may be disposed in the AF moving unit (200). The AF magnet (410) may be disposed in the AF carrier (210). The AF magnet (410) may be disposed in a groove of the AF carrier (210). The AF magnet (410) may be disposed on an outer surface of the AF carrier (210). The AF magnet (410) may be fixed to the AF carrier (210). The AF magnet (410) may be coupled to the AF carrier (210). The AF magnet (410) may be bonded to the AF carrier (210) with an adhesive. The AF magnet (410) may be placed inside the cover (120). The AF magnet (410) may interact with the AF coil (420). The AF magnet (410) may electromagnetically interact with the AF coil (420). The AF magnet (410) may be placed at a position corresponding to the AF coil (420). The AF magnet (410) may face the AF coil (420). The AF magnet (410) may overlap the AF coil (420) in a direction perpendicular to the optical axis. The AF magnet (410) may overlap the AF coil (420) in the x-axis direction. In the x-axis direction, the AF magnet (410) may overlap the OIS-x magnet (510). The AF magnet (410) can be placed between the AF carrier (210) and the first side plate of the cover (120).

[0103] The AF magnet (410) may be a four-pole magnet. The AF magnet (410) may include a four-pole magnetizing magnet. The AF magnet (410) may include a first magnet portion including a N pole and a S pole, and a second magnet portion including a N pole and a S pole. The first magnet portion and the second magnet portion may be arranged vertically. The first magnet portion and the second magnet portion may be spaced apart from each other in the vertical direction, and a neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0104] The lens driving device (10) may include an AF coil (420). The AF driving unit (400) may include the AF coil (420). The AF coil (420) may interact with the AF magnet (410). The AF coil (420) may move the AF magnet (410) in the optical axis direction. The AF coil (420) may move the AF magnet (410) in the optical axis direction through interaction with the AF magnet (410). The AF coil (420) may face the AF magnet (410). The AF coil (420) may face the AF magnet (410). The AF coil (420) may be arranged at a position corresponding to the AF magnet (410). The AF coil (420) may overlap the AF magnet (410) in the x-axis direction. The AF coil (420) may be placed on the OIS moving unit (300). The AF coil (420) may be placed on the OIS carrier (310). The AF coil (420) may move together with the OIS carrier (310). The AF coil (420) may move together with the OIS carrier (310) when the OIS carrier (310) moves. The AF coil (420) may be placed between the AF magnet (410) and the cover (120). The AF coil (420) may be placed on the substrate (320).

[0105] The AF coil (420) can move together with the OIS carrier (310). In the present embodiment, even when the OIS carrier (310) moves in a direction perpendicular to the optical axis, the distance between the AF magnet (410) and the AF coil (420) can be maintained.

[0106] The lens driving device (10) may include an AF sensor (430). The AF driving unit (400) may include an AF sensor (430). The AF sensor (430) may be disposed on the substrate (320). The AF sensor (430) may include a Hall element (Hall IC). The AF sensor (430) may include a Hall sensor. The AF sensor (430) may detect the AF magnet (410). The AF sensor (430) may detect the magnetic force of the AF magnet (410). The AF sensor (430) may detect the movement of the AF magnet (410). The movement amount or position of the AF magnet (410) detected by the AF sensor (430) may be used for feedback of auto focus (AF).

[0107] The AF sensor (430) may be placed within the AF coil (420). The AF sensor (430) may overlap with the AF coil (420) in the optical axis direction. The AF sensor (430) may overlap with the AF magnet (410) in the x-axis direction. The AF sensor (430) may face the AF magnet (410). The AF sensor (430) may be placed at a position corresponding to the AF magnet (410).

[0108] The AF sensor (430) may include a drive IC. In this case, the drive IC may be electrically connected to the AF coil (420). The drive IC may apply current to the AF coil (420). The drive IC may control the direction and amount of current applied to the AF coil (420).

[0109] The lens driving device (10) may include an OIS driving unit (500). The OIS driving unit (500) may move the OIS moving unit (300) in a direction perpendicular to the optical axis. The OIS driving unit (500) may move the OIS carrier (310) in a direction perpendicular to the optical axis.

[0110] The lens driving device (10) may include an OIS-x driving unit (500a). The OIS-x driving unit (500a) may move the OIS moving unit (300) in the x-axis direction. The OIS-x driving unit (500a) may move the OIS carrier (310) in the x-axis direction.

[0111] The lens driving device (10) may include an OIS-x magnet (510). The OIS-x driving unit (500a) may include an OIS-x magnet (510). The OIS-x magnet (510) may be disposed in the OIS moving unit (300). The OIS-x magnet (510) may be disposed in the OIS carrier (310). The OIS-x magnet (510) may be disposed in a groove of the OIS carrier (310). The OIS-x magnet (510) may be fixed to the OIS carrier (310). The OIS-x magnet (510) may be coupled to the OIS carrier (310). The OIS-x magnet (510) may be bonded to the OIS carrier (310) with an adhesive. The OIS-x magnet (510) can be placed inside the cover (120). The OIS-x magnet (510) can interact with the OIS-x coil (520). The OIS-x magnet (510) can electromagnetically interact with the OIS-x coil (520). The OIS-x magnet (510) can be placed at a position corresponding to the OIS-x coil (520). The OIS-x magnet (510) can face the OIS-x coil (520). The OIS-x magnet (510) can face the OIS-x coil (520). The OIS-x magnet (510) can overlap the OIS-x coil (520) in the optical axis direction. The OIS-x magnet (510) can be placed between the AF carrier (210) and the second side plate of the cover (120).

[0112] The OIS-x magnet (510) may be a two-pole magnet. The OIS-x magnet (510) may include a N pole and a S pole. The inner surface of the OIS-x magnet (510) may have a N pole and the outer surface of the OIS-x magnet (510) may have a S pole.

[0113] The lens actuator (10) may include an OIS-x coil (520). The OIS-x actuator (500a) may include the OIS-x coil (520). The OIS-x coil (520) may interact with the OIS-x magnet (510). The OIS-x coil (520) may move the OIS-x magnet (510) in the x-axis direction. The OIS-x coil (520) may move the OIS-x magnet (510) in the x-axis direction through interaction with the OIS-x magnet (510). The OIS-x coil (520) may face the OIS-x magnet (510). The OIS-x coil (520) may face the OIS-x magnet (510). The OIS-x coil (520) can be placed at a position corresponding to the OIS-x magnet (510). The OIS-x coil (520) can be placed on the substrate (130). The OIS-x coil (520) can be placed at a position corresponding to the OIS-x magnet (510) on the substrate (130). The OIS-x coil (520) can be placed on the base (110). The OIS-x coil (520) can be placed on the fixing member (100).

[0114] The lens driving device (10) may include an OIS-x sensor (530). The OIS-x driving unit (500a) may include an OIS-x sensor (530). The OIS-x sensor (530) may be disposed on a substrate (130). The OIS-x sensor (530) may include a Hall element (Hall IC). The OIS-x sensor (530) may include a Hall sensor. The OIS-x sensor (530) may detect an OIS-x magnet (510). The OIS-x sensor (530) may detect the magnetic force of the OIS-x magnet (510). The OIS-x sensor (530) may detect the movement of the OIS-x magnet (510). The movement amount or position of the OIS-x magnet (510) detected by the OIS-x sensor (530) can be used for feedback of the optical image stabilization (OIS) drive in the x-axis direction.

[0115] The OIS-x sensor (530) may be placed within the OIS-x coil (520). The OIS-x sensor (530) may overlap with the OIS-x coil (520) in a direction perpendicular to the optical axis. The OIS-x sensor (530) may overlap with the OIS-x magnet (510) in the direction of the optical axis. The OIS-x sensor (530) may face the OIS-x magnet (510). The OIS-x sensor (530) may be placed at a position corresponding to the OIS-x magnet (510).

[0116] The lens driving device (10) may include an OIS-y driving unit (500b). The OIS-y driving unit (500b) may move the OIS moving unit (300) in the y-axis direction. The OIS-y driving unit (500b) may move the OIS carrier (310) in the y-axis direction.

[0117] The lens actuator (10) may include an OIS-y magnet (540). The OIS-y actuator (500b) may include an OIS-y magnet (540). The OIS-y magnet (540) may be disposed in the OIS moving unit (300). The OIS-y magnet (540) may be disposed in the OIS carrier (310). The OIS-y magnet (540) may be disposed in a groove of the OIS carrier (310). The OIS-y magnet (540) may be disposed on an outer surface of the OIS carrier (310). The OIS-y magnet (540) may be fixed to the OIS carrier (310). The OIS-y magnet (540) may be coupled to the OIS carrier (310). The OIS-y magnet (540) can be adhesively bonded to the OIS carrier (310). The OIS-y magnet (540) can be placed inside the cover (120). The OIS-y magnet (540) can interact with the OIS-y coil (550). The OIS-y magnet (540) can electromagnetically interact with the OIS-y coil (550). The OIS-y magnet (540) can be placed at a position corresponding to the OIS-y coil (550). The OIS-y magnet (540) can face the OIS-y coil (550). The OIS-y magnet (540) can face the OIS-y coil (550). The OIS-y magnet (540) can overlap the OIS-y coil (550) in the optical axis direction. The OIS-y magnet (540) can be placed between the AF carrier (210) and the third side plate of the cover (120).

[0118] The OIS-y magnet (540) may be a two-pole magnet. The OIS-y magnet (540) may include a N pole and a S pole. The inner surface of the OIS-y magnet (540) may have a N pole and the outer surface of the OIS-y magnet (540) may have a S pole.

[0119] The lens actuator (10) may include an OIS-y coil (550). The OIS-y actuator (500b) may include the OIS-y coil (550). The OIS-y coil (550) may interact with the OIS-y magnet (540). The OIS-y coil (550) may move the OIS-y magnet (540) in the y-axis direction. The OIS-y coil (550) may move the OIS-y magnet (540) in the y-axis direction through interaction with the OIS-y magnet (540). The OIS-y coil (550) may face the OIS-y magnet (540). The OIS-y coil (550) may face the OIS-y magnet (540). The OIS-y coil (550) may be placed at a position corresponding to the OIS-y magnet (540). The OIS-y coil (550) may be placed on the substrate (130). The OIS-y coil (550) may be placed at a position corresponding to the OIS-y magnet (540) on the substrate (130). The OIS-y coil (550) may be placed on the base (110). The OIS-y coil (550) may be placed on the fixing member (100).

[0120] The lens driving device (10) may include an OIS-y sensor (560). The OIS-y driving unit (500b) may include the OIS-y sensor (560). The OIS-y sensor (560) may be disposed on the substrate (130). The OIS-y sensor (560) may include a Hall element (Hall IC). The OIS-y sensor (560) may include a Hall sensor. The OIS-y sensor (560) may detect the OIS-y magnet (540). The OIS-y sensor (560) may detect the magnetic force of the OIS-y magnet (540). The OIS-y sensor (560) may detect the movement of the OIS-y magnet (540). The movement or position of the OIS-y magnet (540) detected by the OIS-y sensor (560) can be used for feedback of the optical image stabilization (OIS) drive in the y-axis direction.

[0121] The OIS-y sensor (560) may be placed within the OIS-y coil (550). The OIS-y sensor (560) may overlap with the OIS-y coil (550) in a direction perpendicular to the optical axis. The OIS-y sensor (560) may overlap with the OIS-y magnet (540) in the direction of the optical axis. The OIS-y sensor (560) may face the OIS-y magnet (540). The OIS-y sensor (560) may be placed at a position corresponding to the OIS-y magnet (540).

[0122] The lens actuator (10) may include an elastic member (600). The elastic member (600) may be coupled to the OIS carrier (310). At least a portion of the elastic member (600) may be coupled to the upper surface of the OIS carrier (310). The elastic member (600) may be a plate spring. The elastic member (600) may be a spring. The elastic member (600) may be an upper elastic member. At least a portion of the elastic member (600) may be elastic. The elastic member (600) may have a restoring force. The elastic member (600) may be coupled to a wire (700). The elastic member (600) may connect the OIS carrier (310) and the wire (700). The elastic member (600) may be formed of metal. The elastic member (600) may be arranged perpendicular to the optical axis.

[0123] The elastic member (600) can press the upper surface of the OIS carrier (310) downward. The elastic member (600) can press the OIS carrier (310) toward the OIS guide ball (820) and the base (110). Through this, the OIS guide ball (820) can be brought into close contact with the OIS carrier (310) and the base (110). In the present embodiment, when the elastic member (600) brings the OIS guide ball (820) into close contact with the OIS guide ball, the manpower yoke (840) can be omitted.

[0124] The elastic member (600) may include a first connecting portion (610). The first connecting portion (610) may be connected to a wire (700). The first connecting portion (610) may include a hole through which the wire (700) passes. The first connecting portion (610) may be formed in a circular shape.

[0125] The elastic member (600) may include a second coupling portion (620). The second coupling portion (620) may be coupled to the OIS carrier (310). The second coupling portion (620) may be disposed on the OIS carrier (310). The second coupling portion (620) may be disposed on the upper surface of the OIS carrier (310). The second coupling portion (620) may be fixed to the OIS carrier (310). The second coupling portion (620) may be adhered to the OIS carrier (310).

[0126] The elastic member (600) may include a connecting portion (630). The connecting portion (630) may connect the first connecting portion (610) and the second connecting portion (620). The connecting portion (630) may elastically connect the first connecting portion (610) and the second connecting portion (620). The connecting portion (630) may be elastic. The connecting portion (630) may have a bent shape. The connecting portion (630) may include a bent portion.

[0127] The elastic member (600) may include a plurality of elastic members. The elastic member (600) may include four elastic members. The elastic member (600) may include first to fourth elastic members (600-1, 600-2, 600-3, 600-4). The first to fourth elastic members (600-1, 600-2, 600-3, 600-4) may be spaced apart from each other.

[0128] The first to fourth elastic members (600-1, 600-2, 600-3, 600-4) can be electrically connected to the substrate (320). The first to fourth elastic members (600-1, 600-2, 600-3, 600-4) can be coupled to the terminal (321) of the substrate (320).

[0129] The AF sensor (430) can be electrically connected to the printed circuit board (50) and the first to fourth elastic members (600-1, 600-2, 600-3, 600-4), the first to fourth wires (700-1, 700-2, 700-3, 700-4), and the first to fourth insert members (112-1, 112-2, 112-3, 112-4). The AF coil (420) can receive current from the AF sensor (430). At this time, the AF sensor (430) can include a driver IC.

[0130] The lens actuator (10) may include a wire (700). The wire (700) may be coupled to an elastic member (600). The wire (700) may have elasticity. The wire (700) may be formed of metal. The wire (700) may be arranged parallel to the optical axis. The wire (700) may be coupled to a base (110). The wire (700) may be coupled to an insert member (112). The wire (700) may connect the elastic member (600) and the base (110). The wire (700) may connect the elastic member (600) and the insert member (112). The wire (700) may be directly coupled to the insert member (112). The upper end of the wire (700) may be coupled to the elastic member (600). The lower part of the wire (700) can be combined with the base (110).

[0131] The wire (700) can press the OIS carrier (310) toward the OIS guide ball (820) and the base (110) through a bonding structure with the elastic member (600). Through this, the OIS guide ball (820) can be brought into close contact with the OIS carrier (310) and the base (110).

[0132] The wire (700) may include a plurality of wires. The wire (700) may include four wires. The wire (700) may include first to fourth wires (700-1, 700-2, 700-3, 700-4). The first to fourth wires (700-1, 700-2, 700-3, 700-4) may be spaced apart from each other. The first wire (700-1) may be coupled to the first elastic member (600-1). The second wire (700-2) may be coupled to the second elastic member (600-2). The third wire (700-3) may be coupled to the third elastic member (600-3). The fourth wire (700-4) can be combined with the fourth elastic member (600-4).

[0133] The lens actuator (10) may include a guide member. The guide member may guide the movement of the moving part (200, 300) in a specific direction.

[0134] The lens actuator (10) may include an AF guide ball (810). The AF guide ball (810) may guide the movement of the AF moving unit (200) in the optical axis direction. The AF guide ball (810) may guide the movement of the AF carrier (210) in the optical axis direction. The AF guide ball (810) may guide the movement of the AF carrier (210) with respect to the OIS carrier (310) in the optical axis direction. The AF guide ball (810) may be arranged between the AF moving unit (200) and the OIS moving unit (300). The AF moving unit (200) and the OIS moving unit (300) may include a groove extending in the optical axis direction. The AF guide ball (810) may be arranged between the groove of the AF moving unit (200) and the groove of the OIS moving unit (300). The AF guide ball (810) may be placed between the OIS carrier (310) and the AF carrier (210). The AF guide ball (810) may be placed between the OIS carrier (310) and the AF carrier (210) in the x-axis direction. The AF guide ball (810) may be placed between the inner surface of the OIS carrier (310) and the outer surface of the AF carrier (210). When viewed from the outer side of the AF carrier (210), the AF guide ball (810) may overlap the AF magnet (410) in the horizontal direction.

[0135] The AF guide ball (810) may include a plurality of balls. The AF guide ball (810) may include a plurality of balls that overlap in the optical axis direction. The AF guide ball (810) may include two sets of balls arranged in the optical axis direction.

[0136] The lens actuator (10) may include an OIS guide ball (820). The OIS guide ball (820) may be positioned between the base (110) and the OIS carrier (310). The OIS guide ball (820) may be positioned between a groove of the base (110) and a groove of the OIS carrier (310). The OIS guide ball (820) may be positioned on the upper surface of the base (110). The OIS guide ball (820) may be positioned on the lower surface of the OIS carrier (310).

[0137] The OIS guide ball (820) can guide the movement of the OIS carrier (310) with respect to the base (110). The OIS guide ball (820) can guide the movement of the OIS carrier (310) with respect to the base (110). The OIS guide ball (820) can guide the movement of the OIS carrier (310) with respect to the base (110) in a direction perpendicular to the optical axis. The OIS guide ball (820) can guide the movement of the OIS carrier (310) in both the x-axis direction and the y-axis direction. In this case, crosstalk, which is likely to occur, can be prevented by the elastic member (600) and the wire (700). The OIS guide ball (820) can be in direct contact with the insert member (112).

[0138] The OIS guide ball (820) may include multiple balls. The OIS guide ball (820) may include four balls. The OIS guide ball (820) may include first to fourth balls. The OIS guide ball (820) may include multiple balls arranged at the same height.

[0139] The lens actuator (10) may include a ball pressurizing member. The ball pressurizing member may pressurize the ball.

[0140] The lens driving device (10) may include a manpower yoke (830). The manpower yoke (830) may be disposed on the OIS carrier (310). The manpower yoke (830) may be disposed on the substrate (320). The manpower yoke (830) may be disposed at a position corresponding to the AF magnet (410). An attractive force may be applied between the manpower yoke (830) and the AF magnet (410). The AF guide ball (810) may be pressed between the AF carrier (210) and the OIS carrier (310) by the attractive force between the manpower yoke (830) and the AF magnet (410).

[0141] The lens driving device (10) may include a manpower yoke (840). The manpower yoke (840) may be disposed on the fixing member (100). The manpower yoke (840) may be disposed on the base (110). The manpower yoke (840) may be coupled to the base (110). The manpower yoke (840) may be fixed to the base (110). The manpower yoke (840) may be adhesively bonded to the base (110). The manpower yoke (840) may be disposed on the substrate (130). The manpower yoke (840) may be coupled to the substrate (130). The manpower yoke (840) may be fixed to the substrate (130). The manpower yoke (840) may be adhesively bonded to the substrate (130). The manpower yoke (840) may be disposed on the upper surface of the base (110). The manpower yoke (840) may be placed on the lower surface of the substrate (130). The manpower yoke (840) may be placed between the base (110) and the substrate (130). The manpower yoke (840) may be placed in a groove of the base (110).

[0142] The OIS guide ball (820) can be pressurized by the force of attraction between the manpower yoke (840) and the OIS magnet (510, 540). The OIS guide ball (820) can be pressurized between the OIS carrier (310) and the base (110) by the force of attraction between the manpower yoke (840) and the OIS magnet (510, 540). The OIS guide ball (820) can be pressed between the OIS carrier (310) and the base (110).

[0143] The manpower yoke (840) may include an OIS-x manpower yoke positioned corresponding to the OIS-x magnet (510). The OIS-x manpower yoke may exert manpower with the OIS-x magnet (510).

[0144] The manpower yoke (840) may include an OIS-y manpower yoke positioned corresponding to the OIS-y magnet (540). The OIS-y manpower yoke may exert manpower with the OIS-y magnet (540).

[0145]

[0146] Below, the auto focus (AF) operation of the lens driving device according to the present embodiment is described with reference to the drawings.

[0147] Fig. 17 is a drawing for explaining auto focus driving of a lens driving device according to the present embodiment.

[0148] When current is applied to the AF coil (420), the AF magnet (410) can move in the optical axis direction due to the electromagnetic interaction between the AF coil (420) and the AF magnet (410) (see B of FIG. 17). At this time, the AF carrier (210) and the lens can move in the optical axis direction together with the AF magnet (410) (see A of FIG. 17). Accordingly, the distance between the lens and the image sensor (60) can be changed, so that the focus of the image formed on the image sensor (60) through the lens can be adjusted.

[0149] Meanwhile, the AF sensor (430) can detect the strength of the magnetic field of the AF magnet (410) to detect the position of the AF magnet (410) in real time. The position of the lens can be feedback-controlled in real time through the position of the AF magnet (410) detected by the AF sensor (430).

[0150]

[0151] Below, the optical image stabilization (OIS) operation of the lens driving device according to the present embodiment is described with reference to the drawings.

[0152] Fig. 18 is a drawing for explaining the shake correction operation of the lens driving device according to the present embodiment.

[0153] When current is applied to the OIS-x coil (520), the OIS-x magnet (510) can move in the x-axis direction perpendicular to the optical axis due to the electromagnetic interaction between the OIS-x coil (520) and the OIS-x magnet (510) (see B of FIG. 18). At this time, the OIS carrier (310), the AF carrier (210), and the lens can move in the x-axis direction together with the OIS-x magnet (510) (see A of FIG. 18). Accordingly, when the user's hand shake occurs in the x-axis direction, the lens can move in the x-axis direction with respect to the image sensor (60) to offset the user's hand shake.

[0154] Meanwhile, the OIS-x sensor (530) can detect the strength of the magnetic field of the OIS-x magnet (510) to detect the position of the OIS-x magnet (510) in real time. The position of the lens can be feedback-controlled in real time through the position of the OIS-x magnet (510) detected by the OIS-x sensor (530).

[0155] When current is applied to the OIS-y coil (550), the OIS-y magnet (540) can move in the y-axis direction perpendicular to the optical axis due to the electromagnetic interaction between the OIS-y coil (550) and the OIS-y magnet (540) (see C of FIG. 18). At this time, the OIS carrier (310), the AF carrier (210), and the lens can move in the y-axis direction together with the OIS-y magnet (540) (see A of FIG. 18). Accordingly, when the user's hand shake occurs in the y-axis direction, the lens can move in the y-axis direction with respect to the image sensor (60) to offset the user's hand shake.

[0156] Meanwhile, the OIS-y sensor (560) can detect the strength of the magnetic field of the OIS-y magnet (540) to detect the position of the OIS-y magnet (540) in real time. The position of the lens can be feedback-controlled in real time through the position of the OIS-y magnet (540) detected by the OIS-y sensor (560).

[0157]

[0158] Below, a camera device according to the present embodiment is described with reference to the drawings.

[0159] Fig. 19 is an exploded perspective view of a camera device according to the present embodiment.

[0160] The camera device (10A) may include a camera module.

[0161] The camera device (10A) may include a lens module (20). The lens module (20) may include at least one lens. The lens may be positioned corresponding to the image sensor (60). The lens module (20) may include a lens and a barrel. The lens module (20) may be coupled to the AF carrier (210) of the lens driving device (10). The lens module (20) may be coupled to the AF carrier (210) by screw coupling and / or adhesive. The lens module (20) may move integrally with the AF carrier (210).

[0162] The camera device (10A) may include a filter (30). The filter (30) may block light of a specific frequency band from passing through the lens module (20) from being incident on the image sensor (60). The filter (30) may be arranged parallel to the xy plane. The filter (30) may be arranged between the lens module (20) and the image sensor (60). The filter (30) may be arranged on the sensor base (40). Alternatively, the filter (30) may be arranged on the base (110). The filter (30) may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor (60).

[0163] The camera device (10A) may include a sensor base (40). The sensor base (40) may be disposed between the lens actuator (10) and the printed circuit board (50). The sensor base (40) may include a protrusion (41) on which a filter (30) is disposed. An opening may be formed in a portion of the sensor base (40) on which the filter (30) is disposed so that light passing through the filter (30) may be incident on the image sensor (60). The adhesive member may couple or adhere the base (110) of the lens actuator (10) to the sensor base (40). The adhesive member may additionally serve to prevent foreign substances from entering the interior of the lens actuator (10). The adhesive member may include at least one of an epoxy, a thermosetting adhesive, and an ultraviolet-curable adhesive.

[0164] The camera device (10A) may include a printed circuit board (PCB) (50). The printed circuit board (50) may be a substrate or a circuit board. A lens driving device (10) may be disposed on the printed circuit board (50). A sensor base (40) may be disposed between the printed circuit board (50) and the lens driving device (10). The printed circuit board (50) may be electrically connected to the lens driving device (10). An image sensor (60) may be disposed on the printed circuit board (50). Various circuits, components, control units, etc. may be provided on the printed circuit board (50) to convert an image formed on the image sensor (60) into an electrical signal and transmit it to an external device.

[0165] The camera device (10A) may include an image sensor (60). The image sensor (60) may be configured to form an image by incident light passing through a lens and a filter (30). The image sensor (60) may be mounted on a printed circuit board (50). The image sensor (60) may be electrically connected to the printed circuit board (50). For example, the image sensor (60) may be coupled to the printed circuit board (50) using surface mounting technology (SMT). As another example, the image sensor (60) may be coupled to the printed circuit board (50) using flip chip technology. The image sensor (60) may be arranged such that its optical axis is aligned with that of the lens. That is, the optical axis of the image sensor (60) and the optical axis of the lens may be aligned. The image sensor (60) can convert light irradiated onto the effective image area of ​​the image sensor (60) into an electrical signal. The image sensor (60) can be any one of a CCD (charge coupled device), a MOS (metal oxide semi-conductor), a CPD, and a CID.

[0166] The camera device (10A) may include a motion sensor (70). The motion sensor (70) may be mounted on a printed circuit board (50). The motion sensor (70) may be electrically connected to a control unit (80) through a circuit pattern provided on the printed circuit board (50). The motion sensor (70) may output rotational angular velocity information due to the movement of the camera device (10A). The motion sensor (70) may include a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0167] The camera device (10A) may include a control unit (80). The control unit (80) may be disposed on a printed circuit board (50). The control unit (80) may be electrically connected to the coils (520, 620, 720) and sensors (530, 630, 730) of the lens driving device (10). The control unit (80) may individually control the direction, intensity, amplitude, etc. of the current supplied to the coil (330). The control unit (80) may control the lens driving device (10) to perform an autofocus function and / or a shake correction function. Furthermore, the control unit (80) may perform autofocus feedback control and / or shake correction feedback control for the lens driving device (10).

[0168] The camera device (10A) may include a connector (90). The connector (90) may be electrically connected to a printed circuit board (50). The connector (90) may include a port for electrically connecting to an external device.

[0169]

[0170] Below, an optical device according to the present embodiment is described with reference to the drawings.

[0171] Fig. 20 is a perspective view of an optical device according to the present embodiment.

[0172] The optical device (1) may include one or more of a mobile phone, a cell phone, a portable terminal, a mobile terminal, a smart phone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), and a navigation device. The optical device (1) may include any device for taking images or photographs.

[0173] An optical device (1) may include a main body (2). The optical device (1) may include a camera device (10A). The camera device (10A) may be disposed on the main body (2). The camera device (10A) may photograph a subject. The optical device (1) may include a display. The display may be disposed on the main body (2). The display may output one or more of an image or video captured by the camera device (10A). The display may be disposed on a first surface of the main body (2). The camera device (10A) may be disposed on one or more of the first surface of the main body (2) and a second surface opposite the first surface. As illustrated in FIG. 20, the camera device (10A) may have a triple camera disposed in a vertical direction. Alternatively, the camera device (10A) may have a triple camera disposed in a horizontal direction.

[0174]

[0175] Although the embodiments of the present invention have been described with reference to the attached drawings, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without altering the technical concept or essential features thereof. Therefore, the embodiments described above should be understood to be illustrative in all respects and not restrictive.

Claims

1. Base; A first carrier arranged on the above base; A second carrier arranged within the first carrier; A first driving unit that moves the first carrier in a direction perpendicular to the optical axis; A second driving unit that moves the second carrier in the optical axis direction; An elastic member coupled to the first carrier; a wire coupled to the elastic member; and A lens driving device including a first ball disposed between the base and the first carrier.

2. In paragraph 1, A lens driving device in which the elastic member and the wire press the first carrier toward the first ball and the base.

3. In paragraph 1, The first ball is placed on the upper surface of the base and the lower surface of the first carrier, At least a portion of the above elastic member is joined to the upper surface of the first carrier, The upper part of the above wire is combined with the above elastic member, The lower part of the above wire is a lens driving device that is connected to the above base.

4. In paragraph 1, The above base includes a body and a metal insert member fixed to the body, The above first ball is a lens driving device that is in direct contact with the insert member.

5. In paragraph 4, The above wire is a lens driving device directly connected to the above insert member.

6. In paragraph 1, Including a first substrate placed on the above base, A lens driving device, wherein the first driving unit includes a first magnet and a second magnet arranged on the first carrier, a first coil arranged on the first substrate at a position corresponding to the first magnet, and a second coil arranged on the first substrate at a position corresponding to the second magnet.

7. In paragraph 1, Including a second substrate arranged on the first carrier, A lens driving device including a third magnet disposed on the second carrier and a third coil disposed on the second substrate, wherein the second driving unit is a second driving unit.

8. In paragraph 7, The above third coil is a lens driving device that moves together with the above first carrier.

9. In paragraph 7, The above elastic member includes first to fourth elastic members spaced apart from each other, The wire includes a first wire coupled to the first elastic member, a second wire coupled to the second elastic member, a third wire coupled to the third elastic member, and a fourth wire coupled to the fourth elastic member. A lens driving device in which the first to fourth elastic members are electrically connected to the second substrate.

10. In paragraph 9, The above base comprises a metal insert member, The above insert member includes first to fourth insert members spaced apart from each other, The above first insert member is combined with the above first wire, The above second insert member is combined with the above second wire, The third insert member is coupled with the third wire, The fourth insert member is a lens driving device coupled with the fourth wire.

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