Lens driving device, camera device, and optical instrument

Abstract

This embodiment relates to a lens driving device, which includes a housing, a substrate disposed in the housing, a holder disposed in the housing, a magnet disposed in the holder, a coil that interacts with the magnet, and an elastic member that connects the housing and the holder. The coil includes a first coil disposed on the substrate and a second coil disposed on the opposite side of the first coil with respect to the optical axis. The elastic member electrically connects the second coil and the substrate.

Description

Technical Field

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

Background Art

[0002] A camera device is a device that captures a subject in a photograph or video, and is mounted on an optical instrument such as a smartphone, a drone, a vehicle, or the like.

[0003] Recently, research has been conducted on a triple camera structure in which three camera devices are arranged side by side in a smartphone.

[0004] At this time, magnetic field interference between the camera devices arranged side by side becomes a problem. In particular, in the case of the camera device arranged in the middle, a design for avoiding magnetic field interference from the camera devices on both sides is required.

[0005] In addition, in the case of a camera module mounted on a small electronic product such as a smartphone, the camera module may be frequently impacted during use, and the camera module may be slightly shaken due to hand shake of the user during shooting. In view of such points, recently, a technique for additionally installing an anti-shake means in the camera module has been developed.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] A first embodiment of the present invention aims to provide a lens driving device in which magnetic field interference from peripheral camera devices is minimized in a structure in which a plurality of camera devices are arranged side by side.

[0008] In particular, in a triple camera structure, a lens driving device is provided that is disposed in the middle and minimizes magnetic field interference from the camera devices on both sides. Further, even when disposed in a dual camera, a lens driving device is provided that minimizes magnetic field interference with adjacent camera devices.

[0009] A second embodiment of the present invention provides a lens driving device capable of improving the accuracy and reliability of AF driving, and a camera module and an optical device including the same.

Means for Solving the Problems

[0010] The lens driving device according to the first embodiment of the present invention includes a housing, a substrate disposed in the housing, a holder disposed in the housing, a magnet disposed in the holder, a coil that interacts with the magnet, and an elastic member that connects the housing and the holder. The coil includes a first coil disposed on the substrate and a second coil disposed on the opposite side of the first coil with respect to the optical axis. The elastic member can electrically connect the second coil and the substrate.

[0011] The elastic member includes an upper elastic member disposed on the upper surface of the holder. The upper elastic member includes first and second upper elastic members spaced apart from each other. The first upper elastic member may be coupled to one end of the second coil, and the second upper elastic member may be coupled to the other end of the second coil.

[0012] The elastic member includes a lower elastic member disposed on the lower surface of the holder. The lower elastic member may be integrally formed.

[0013] The magnet includes a first magnet that interacts with the first coil and a second magnet that interacts with the second coil. The first coil and the second coil can move the holder in the optical axis direction.

[0014] The second coil may be separated from the substrate.

[0015] The upper elastic member includes an inner portion coupled to the upper surface of the holder, an outer portion coupled to the upper surface of the housing, a connecting portion connecting the inner portion and the outer portion, and a terminal portion extending from the outer portion. The terminal portion is coupled to a terminal of the substrate, and the housing may include a groove formed at a position corresponding to the terminal of the substrate on the upper surface of the housing.

[0016] The magnet includes a first magnet that interacts with the first coil. The first magnet includes a first surface facing the first coil. In a direction perpendicular to the first surface of the first magnet, the first coil includes a first portion that does not overlap the first magnet. When viewed from the inside of the housing, at least a part of the first portion of the first coil may be blocked by the housing.

[0017] It includes a driver IC disposed on the substrate. The driver IC includes a sensing portion that senses the magnet. The magnet includes a first magnet portion having an N pole and an S pole, a second magnet portion disposed on the first magnet portion and having an N pole and an S pole, and a neutral portion disposed between the first magnet portion and the second magnet portion. The driver IC may be disposed within the first coil and overlap the neutral portion of the magnet in a direction perpendicular to the optical axis.

[0018] One end and the other end of the first coil may be coupled to the substrate.

[0019] Both one end and the other end of the first coil may be directly coupled to the substrate.

[0020] Either one of the one end and the other end of the first coil may be coupled to the substrate, and the other may be coupled to the elastic member.

[0021] The elastic member includes a lower elastic member disposed on the lower surface of the holder.

[0022] The lower elastic member includes a first lower elastic member and a second lower elastic member spaced apart from each other. The first lower elastic member may be coupled to one end of the second coil, and the second lower elastic member may be coupled to the other end of the second coil.

[0023] The elastic member includes an upper elastic member disposed on the upper surface of the holder and a lower elastic member disposed on the lower surface of the holder. The upper elastic member may be coupled to one end of the second coil, and the lower elastic member may be coupled to the other end of the second coil.

[0024] It may include a yoke disposed on the upper surface of the magnet.

[0025] The camera device according to the first embodiment of the present invention may include a printed circuit board, an image sensor disposed on the printed circuit board, a lens driving device disposed on the printed circuit board, and a lens coupled to the lens driving device.

[0026] The optical device according to the first embodiment of the present invention may include a main body, a camera device disposed on the main body, and a display disposed on the main body and outputting any one or more of images and images captured by the camera device.

[0027] The lens driving device according to the second embodiment of the present invention includes a housing, a bobbin disposed within the housing, a first magnet unit disposed on a first side portion of the housing, and a magnet including a second magnet unit located on the opposite side of the first side portion, a coil disposed on the bobbin and including a first coil unit facing the first magnet unit and a second coil unit facing the second magnet unit, and a position sensor disposed on the first side portion of the housing. With respect to a virtual plane that is perpendicular to the optical axis, passes through the optical axis, and is parallel to the direction from the first side portion toward the second side portion, the first coil unit and the second coil unit are disposed so as to be offset in opposite directions from each other.

[0028] In a direction parallel to the virtual plane, at least a part of the position sensor may overlap at least a part of the second magnet unit.

[0029] In a direction parallel to the virtual plane, at least a part of the position sensor may overlap at least a part of the second coil unit.

[0030] The bobbin may include a sensing magnet disposed opposite to the position sensor. At least a part of the sensing magnet may overlap the second magnet unit in a direction parallel to the virtual plane.

[0031] At least a part of the sensing magnet may overlap the second coil unit in a direction parallel to the virtual plane.

[0032] In a direction parallel to the virtual plane, at least a part of the first coil unit may overlap the second coil unit.

[0033] In a direction parallel to the virtual plane, at least a part of the first magnet unit may overlap at least a part of the second magnet unit.

[0034] The first coil unit may include a first portion that overlaps the second coil unit in a direction parallel to the virtual plane, and a second portion that does not overlap the second coil unit.

[0035] The length of the first portion of the housing in a direction perpendicular to the virtual plane may be smaller than the length of the second portion of the housing in a direction perpendicular to the virtual plane.

[0036] The lens driving device includes an elastic member coupled to the bobbin and the housing, and a circuit board disposed on the first side portion of the housing. The first coil unit and the second coil unit may be electrically connected to the elastic member, and the elastic member may be electrically connected to the circuit board. Each of the first coil unit and the second coil unit may be in a ring shape having a hollow.

[0037] The housing is disposed between the first side portion and the second side portion, and includes a third side portion and a fourth side portion located on opposite sides of each other. The magnet may not be disposed on the third and fourth side portions of the housing.

[0038] The position sensor may not overlap the first magnet unit in a direction parallel to the virtual plane.

[0039] The coil may not be disposed on the outer surface of the bobbin facing each of the third and fourth side portions of the housing.

[0040] The lens driving device according to another embodiment includes a housing, a bobbin disposed within the housing, a magnet including a first magnet unit disposed on a first side portion of the housing and a second magnet unit located on the opposite side of the first side portion, a coil disposed on the bobbin and including a first coil unit facing the first magnet unit and a second coil unit facing the second magnet unit, and a position sensor disposed on the first side portion of the housing. The first coil unit is disposed adjacent to one of two corners of the housing that are located on opposite sides with respect to the optical axis, and the second coil unit is disposed adjacent to the other of the two corners of the housing that are located on opposite sides with respect to the optical axis.

Effect of the Invention

[0041] Through the first embodiment of the present invention, in a structure in which a plurality of camera devices are arranged side by side, magnetic field interference from peripheral camera devices can be minimized.

[0042] Therefore, more precise autofocus control is possible.

[0043] Furthermore, through the first embodiment of the present invention, an ultra-wide camera device in which magnetic field interference from camera devices on both sides is minimized can be provided so as to be disposed in the middle in a triple camera structure.

[0044] Also, through the first embodiment of the present invention, an ultra-wide camera device in which magnetic field interference with an adjacent camera device is minimized can be provided even when arranged with dual cameras.

[0045] In the second embodiment of the present invention, a position sensor and a drive magnet are arranged on one side of the housing, and a sensing magnet is arranged on the bobbin so as to face the position sensor, whereby magnetic field interference between the magnets of adjacent actuators and the sensing magnet can be reduced, and thereby the accuracy and reliability of AF driving can be improved.

[0046] Since the second embodiment of the present invention performs AF driving using two magnet units and two corresponding coil units, it is suitable for the design of a large-diameter lens driving device.

Brief Description of the Drawings

[0047]

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Mode for Carrying Out the Invention

[0048] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0049] However, the technical idea of the present invention is not limited to some of the embodiments to be described, and can be embodied in various different forms. 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 replaced and used.

[0050] In addition, the terms (including technical and scientific terms) used in the embodiments of the present invention can be interpreted in a meaning generally understood by those having ordinary knowledge in the technical field to which the present invention belongs, unless they are clearly defined and described specially, and terms generally used like those defined in a dictionary can be interpreted in consideration of the meaning in the context of the related art.

[0051] Also, the terms used in the embodiments of the present invention are for explaining the embodiments and are not intended to limit the present invention.

[0052] In this specification, the singular form can include the plural form unless otherwise particularly mentioned in the text, and when described as "at least one (or one or more) of A and (or) B, C", it can include one or more of all combinations possible with A, B, and C.

[0053] In addition, when explaining the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. can be used. Such terms are only for distinguishing the components from other components, and the essence, order, or sequence of the components is not limited by such terms.

[0054] And when it is described that a certain component is "connected", "coupled" or "joined" to another component, that component can include not only the case where it is directly "connected", "coupled" or "joined" to the other component, but also the case where it is "connected", "coupled" or "joined" by still other components intervening between that component and the other component.

[0055] Also, when it is described that something is formed or arranged "above (on top of)" or "below (beneath)" each component, "above (on top of)" or "below (beneath)" includes not only the case where two components are in direct contact with each other, but also the case where one or more additional components are formed or arranged between the two components. Also, when expressed as "above (on top of)" or "below (beneath)", it can include the meaning not only in the upward direction but also in the downward direction with respect to one component.

[0056] The "optical axis (refer to OA in FIG. 1 etc., Optical Axis) direction" used hereinafter is defined as the optical axis direction of the lens and / or image sensor coupled to the lens driving device.

[0057] The "vertical direction" used hereinafter can be a direction parallel to or the same as the optical axis direction. The vertical direction can correspond to the "z-axis direction". The "horizontal direction" used hereinafter can be a direction perpendicular to the vertical direction. That is, the horizontal direction can be a direction perpendicular to the optical axis. Therefore, the horizontal direction can include the "x-axis direction" and the "y-axis direction".

[0058] As used hereinafter, the "auto focus (AF) function" is defined as a function that automatically focuses on a subject by moving a lens in the optical axis direction according to the distance of the subject to adjust the distance from the lens to the image sensor so as to obtain a clear image of the subject on the image sensor. Further, the "closed-loop auto focus (CLAF) control" is defined as a control that senses the distance between the image sensor and the lens and performs feedback control on the position of the lens in real time in order to improve the accuracy of focus adjustment.

[0059] Hereinafter, the configuration of the lens driving device according to the first embodiment and the modified example of the present invention will be described with reference to the drawings.

[0060] FIG. 1 is a perspective view of a lens driving device according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line a-a of FIG. 1, FIG. 3 is a cross-sectional view taken along line b-b of FIG. 1, FIG. 4 is a cross-sectional view taken in a direction perpendicular to the optical axis of the lens driving device according to the first embodiment of the present invention, FIG. 5 is an exploded perspective view of the lens driving device according to the first embodiment of the present invention, FIG. 6 is a perspective view of the lens driving device according to the first embodiment of the present invention with the cover removed, FIG. 7 is a perspective view of the lens driving device in the state of FIG. 6 viewed from a direction different from FIG. 6, FIG. 8 is a perspective view of a fixing portion of the lens driving device according to the first embodiment of the present invention, FIG. 9 is a perspective view of a moving portion of the lens driving device according to the first embodiment of the present invention, FIG. 10 is a perspective view of an elastic member of the lens driving device according to the first embodiment of the present invention, FIG. 11A is a perspective view of a driving portion and an upper elastic member of the lens driving device according to the first embodiment of the present invention, FIG. 11B is a view showing how the substrate and related configurations of the lens driving device according to the first embodiment of the present invention are seen from the inside, FIG. 12 is a partial perspective view of the lens driving device in the state of FIG. 11A viewed from a direction different from FIG. 11A, FIG. 13 is a perspective view showing a portion where the upper elastic member and the substrate of the lens driving device according to the first embodiment of the present invention are coupled, FIG. 14 is a perspective view showing a portion where the upper elastic member and the coil of the lens driving device according to the first embodiment of the present invention are coupled, FIG. 15 is a partial perspective cross-sectional view showing how the first coil of the lens driving device according to the first embodiment of the present invention is seen from the inside of the housing, (a) of FIG. 16 is a perspective view of a lens driving device according to a modified example with the cover removed, and (b) is a cross-sectional view.

[0061] The lens driving device 1010 may be a voice coil motor (VCM). The lens driving device 1010 may be a lens driving motor. The lens driving device 1010 may be a lens driving actuator. The lens driving device 1010 can include an AF module.

[0062] The lens driving device 1010 can include a fixed part 1100. The fixed part 1100 can be a part that is relatively fixed when the moving part 1200 moves. The moving part 1200 can move relative to the fixed part 1100.

[0063] The lens driving device 1010 can include a housing 1110. The fixed part 1100 can include the housing 1110. The housing 1110 can be arranged on a base 1140. The housing 1110 can be arranged within a cover 1150. The housing 1110 can be arranged outside a holder 1210. The housing 1110 may be formed of an injection-molded product. The housing 1110 may be formed of a non-conductive material.

[0064] The housing 1110 can include a groove 1111. The groove 1111 may be a coil accommodating groove. The groove 1111 may be formed in a concave shape on the outer surface of the housing 1110. The groove 1111 may be formed by being recessed from the outer surface of the housing 1110. A coil 1130 can be arranged in the groove 1111. At least a part of the groove 1111 can include a shape corresponding to the coil 1130.

[0065] The housing 1110 can include a protrusion 1112. The protrusion 1112 may be a coil winding protrusion. The protrusion 1112 can be formed on the outer surface of the housing 1110. The protrusion 1112 can be arranged within the groove 1111. The coil 1130 can be wound around the protrusion 1112. The protrusion 1112 can include at least two or more protrusions that support the inside of the coil 1130 from both sides.

[0066] The housing 1110 can include a hole 1113. The hole 1113 can be formed between the coil 1130 and the magnet 1220. The hole 1113 can penetrate the side wall of the housing 1110. The side wall of the housing 1110 may also be referred to as a side part or a side plate. The hole 1113 can be arranged between the coil 1130 and the magnet 1220.

[0067] The housing 1110 can include a groove 1114. The groove 1114 may be a current-carrying member receiving groove. The groove 1114 can be formed on the upper surface of the housing 1110. The groove 1114 can be formed at a position corresponding to the terminal 1122 of the substrate 1120. At least a part of the current-carrying member can be received in the groove 1114. Solder balls may be received in the groove 1114. Solder balls may be arranged in the groove 1114. The groove 1114 can be arranged at a position corresponding to the terminal portion 1314 of the upper elastic member 13310. The groove 1114 can be arranged under the terminal portion 1314 of the upper elastic member 13310.

[0068] The housing 1110 can include a groove 1115. The groove 1115 may be a coil end avoiding groove. The groove 1115 can be formed to avoid both ends of the second coil 1132. The groove 1115 can be formed so that the second coil 1132 can pass through. The groove 1115 may be formed on the outer surface or the inner surface of the housing 1110. The groove 1115 can include a plurality of grooves. The groove 1115 can include two grooves. The groove 1115 can include a first groove formed on the outer surface of the upper part of the housing 1110 and a second groove formed on the inner surface of the upper part of the housing 1110.

[0069] The housing 1110 can include a groove 1116. The groove 1116 may be a stopper receiving groove. The protrusion 1214 of the holder 1210 can be arranged in the groove 1116. At least a part of the groove 1116 can include a shape corresponding to the protrusion 1214 of the holder 1210. When the holder 1210 rotates, the protrusion 1214 of the holder 1210 and the groove 1116 of the housing 1110 can come into contact. Also, when the holder 1210 moves in a direction perpendicular to the optical axis, the protrusion 1214 of the holder 1210 can contact the groove 1116 of the housing 1110.

[0070] Any one of the grooves 1111, 1114, 1115, and 1116 of the housing 1110 can be referred to as the 'first groove', another one as the'second groove', another one as the 'third groove', and the remaining one as the 'fourth groove'.

[0071] The lens driving device 1010 can include a substrate 1120. The fixing portion 1100 can include the substrate 1120. The substrate 1120 may be a circuit board. The substrate 1120 may be a printed circuit board. The substrate 1120 can include an FPCB (Flexible printed circuit board). The substrate 1120 can be arranged in the housing 1110. The substrate 1120 can be arranged on the side plate of the housing 1110. The substrate 1120 can be arranged on the outer surface of the housing 1110. The substrate 1120 can be arranged parallel to the optical axis.

[0072] The substrate 1120 can include a body portion 1121. A first coil 1131 can be arranged in the body portion 1121. The first coil 1131 can be arranged on the inner surface of the body portion 1121. The body portion 1121 can be arranged in the housing 1110. The body portion 1121 can be arranged on the outer surface of the housing 1110.

[0073] The substrate 1120 can include terminals 1122. The terminals 1122 may be upper terminals. The terminals 1122 can be formed in the body portion 1121. The terminals 1122 can be formed on the inner surface of the body portion 1121. The terminals 1122 can be formed at the upper end portion of the body portion 1121. The terminals 1122 can be coupled to the upper elastic member 1310. The terminals 1122 can include a plurality of terminals. The terminals 1122 can include two terminals. The terminals 1122 can include first and second terminals.

[0074] The substrate 1120 can include a terminal portion 1123. The terminal portion 1123 can extend from the body portion 1121. The terminal portion 1123 can extend downward from the body portion 1121. The terminal portion 1123 can be formed at the lower end portion of the substrate 1120. The terminal portion 1123 can be coupled to the printed circuit board 1050.

[0075] The substrate 1120 can include terminals 1124. The terminals 1124 may be lower terminals. The terminals 1124 can be formed in the terminal portion 1123. The terminals 1124 can be formed on the outer surface of the terminal portion 1123. The terminals 1124 can be formed at the lower end portion of the terminal portion 1123. The terminals 1124 can be coupled to the printed circuit board 1050 of the camera device 1010A. The terminals 1124 can include a plurality of terminals. The terminals 1124 can include five terminals. The terminals 1124 can be electrically connected to the driver IC 1160.

[0076] Either one of the terminals 1122 and 1124 of the substrate 1120 can be referred to as the 'first terminal', and the remaining one can be referred to as the'second terminal'.

[0077] The substrate 1120 can include holes 1125. The holes 1125 of the substrate 1120 can be coupled to the housing 1110. The holes 1125 can be coupled to the protrusions of the housing 1110. The protrusions of the housing 1110 can be inserted into the holes 1125 of the substrate 1120. The holes 1125 can include a plurality of holes. The holes 1125 can include two holes.

[0078] The lens driving device 1010 can include a coil 1130. The fixing part 1100 can include a coil 1130. The driving part can include a coil 1130. The AF driving part can include a coil 1130. The coil 1130 can interact with the magnet 1220. The coil 1130 can move the magnet 1220 in the optical axis direction. The coil 1130 can move the magnet 1220 in the optical axis direction through the interaction with the magnet 1220. The coil 1130 can face the magnet 1220. The coil 1130 can be arranged at a position corresponding to the magnet 1220. The coil 1130 can overlap the magnet 1220 in a direction perpendicular to the optical axis. The coil 1130 can be arranged on the substrate 1120. The coil 1130 can be arranged in the housing 1110. The coil 1130 can be arranged in the fixing part 1100.

[0079] Coil 1130 can include a plurality of coils. Coil 1130 can include two coils. The two coils may be electrically connected. Or, the two coils may be electrically separated. The two coils may be spaced apart from each other.

[0080] Coil 1130 can include a first coil 1131. The first coil 1131 can interact with the first magnet 1221. The first coil 1131 can move the first magnet 1221 in the optical axis direction. The first coil 1131 can move the first magnet 1221 in the optical axis direction through the interaction with the first magnet 1221. The first coil 1131 can face the first magnet 1221. The first coil 1131 can be arranged at a position corresponding to the first magnet 1221. The first coil 1131 can overlap the first magnet 1221 in a direction perpendicular to the optical axis. The first coil 1131 can be arranged on the substrate 1120. The first coil 1131 can be arranged in the housing 1110. The first coil 1131 can be arranged in the fixing portion 1100. The first coil 1131 can move the holder 1210 in the optical axis direction.

[0081] Both one end and the other end of the first coil 1131 can be directly coupled to the substrate 1120. Through this, the first coil 1131 can be electrically connected to the driver IC 1160. In a modification, either one of one end and the other end of the first coil 1131 may be directly coupled to the substrate 1120, and the other may be directly coupled to the elastic member 1300. At this time, the elastic member 1300 may be the upper elastic member 1310. That is, in the modification, the first coil 1131 can be electrically connected to the driver IC 1160 via the substrate 1120 and the elastic member 1300.

[0082] The first magnet 1221 can include a first surface facing the first coil 1131. At this time, in a direction perpendicular to the first surface of the first magnet 1221, the first coil 1131 can include a first portion 1131-1 that does not overlap with the first magnet 1221. When viewed from the inside of the housing 1110, at least a part of the first portion 1131-1 of the first coil 1131 can be blocked by the housing 1110. The width of the first coil 1131 can be larger than the width of the first magnet 1221. The first coil 1131 can include a portion that does not interact with the first magnet 1221. The first portion 1131-1 of the first coil 1131 may not interact with the first magnet 1221, or the force acting on the interaction may be smaller compared to other portions of the first coil 1131.

[0083] The coil 1130 can include a second coil 1132. The second coil 1132 can be arranged on the opposite side of the first coil 1131 with respect to the optical axis. The second coil 1132 can move the holder 1210 in the optical axis direction. The second coil 1132 can be separated from the substrate 1120. The second coil 1132 can be arranged in the housing 1110. The second coil 1132 can be arranged in the fixing portion 1100. The second coil 1132 can be separated from the first coil 1131. The second coil 1132 may be electrically separated from the first coil 1131. Or, the second coil 1132 may be electrically connected to the first coil 1131.

[0084] The second coil 1132 can interact with the second magnet 1222. The second coil 1132 can move the second magnet 1222 in the optical axis direction. The second coil 1132 can move the second magnet 1222 in the optical axis direction through the interaction with the second magnet 1222. The second coil 1132 can face the first magnet 1222. The second coil 1132 can be opposed to the second magnet 1222. The second coil 1132 can be arranged at a position corresponding to the second magnet 1222. The second coil 1132 can overlap with the second magnet 1222 in a direction perpendicular to the optical axis.

[0085] Both one end and the other end of the second coil 1132 can be directly coupled to the upper elastic member 1310. The second coil 1132 may be coupled to the upper elastic member 1310 via an energizing member. The second coil 1132 may be coupled to the upper elastic member 1310 through soldering or welding. Through this, the second coil 1132 can be electrically connected to the driver IC 1160. A current can be applied to the second coil 1132 from the driver IC 1160.

[0086] The lens driving device 1010 can include a base 1140. The fixing portion 1100 can include the base 1140. The base 1140 can be disposed under the housing 1110. The base 1140 can be disposed under the holder 1210. The base 1140 can be coupled to the cover 1150. The base 1140 can contact the holder 1210 when the holder 1210 moves maximally downward in the optical axis direction.

[0087] The lens driving device 1010 can include a cover 1150. The fixed part 1100 can include the cover 1150. The cover 1150 may be disposed on the base 1140. The cover 1150 may be coupled to the base 1140. The cover 1150 may be fixed to the base 1140. The cover 1150 may be disposed in the housing 1110. The cover 1150 can accommodate the housing 1110 therein. The cover 1150 can accommodate the holder 1220 therein. The cover 1150 may be a shield member. The cover 1150 may be a shield can. The cover 1150 can block electromagnetic interference (EMI) noise. At this time, the cover member 1150 can be an EMI shield can.

[0088] The cover 1150 can include an upper plate 1151. The upper plate 1151 may be disposed on the moving part 1200. The upward movement of the moving part 1200 can be restricted by the moving part 1200 contacting the upper plate 1151. The upper plate 1151 can include a hole through which light passes.

[0089] The cover 1150 can include side plates 1152. The side plates 1152 can extend from the upper plate 1151. The side plates 1152 may be disposed on the base 1110. The side plates 1152 may be disposed on a step portion protruding from the lower end of the outer surface of the base 1110. The side plates 1152 may be disposed in the housing 1110. The side plates 1152 can include a plurality of side plates. The side plates 1152 can include four side plates. The side plates 1152 can include a first side plate and a second side plate disposed on opposite sides of each other, and a third side plate and a fourth side plate disposed on opposite sides of each other. In this embodiment, the first magnet 1221 may be disposed at a position corresponding to the third side plate, and the second magnet 1222 may be disposed at a position corresponding to the fourth side plate.

[0090] The lens driving device 1010 can include a driver IC 1160. The fixed part 1100 can include the driver IC 1160. The driver IC 1160 can be arranged on the substrate 1120. The driver IC 1160 can include a sensing part that senses the magnet 1220. The sensing part can include a Hall element (Hall IC). The sensing part can include a Hall sensor. The driver IC 1160 can be electrically connected to the coil 1130. The driver IC 1160 can supply current to the coil 1130. The driver IC 1160 can be electrically connected to the first coil 1131. The driver IC 1160 can supply current to the first coil 1131. The driver IC 1160 can be electrically connected to the second coil 1132. The driver IC 1160 can supply current to the second coil 1132. The driver IC 1160 can sense the movement of the first magnet 1220. The amount of movement or the position of the first magnet 1220 sensed by the driver IC 1160 can be used for the feedback of autofocus driving.

[0091] The driver IC 1160 can be arranged inside the first coil 1131. The driver IC 1160 can overlap with the neutral part 1220-3 of the magnet 1220 in a direction perpendicular to the optical axis. As a modification, the driver IC 1160 may be arranged outside the first coil 1131.

[0092] As a modification, the lens driving device 1010 can include a Hall sensor. That is, the lens driving device 1010 can include a Hall sensor instead of the driver IC 1160.

[0093] The lens driving device 1010 can include a capacitor 1170. The fixed part 1100 can include the capacitor 1170. The capacitor 1170 may be arranged on the substrate 1120. The capacitor 1170 may be arranged on the inner surface of the substrate 1120. The capacitor 1170 may be arranged inside the first coil 1131. The capacitor 1170 may be arranged beside the driver IC 1160. The capacitor 1170 can be electrically connected to the driver IC 1160. The capacitor 1170 can remove the noise generated during the transmission and reception of the driver IC 1160.

[0094] As shown in FIG. 16, in a modified example, the lens driving device 1010 can include a yoke 1180. The fixed part 1100 can include the yoke 1180. The yoke 1180 can be arranged on the upper surface of the magnet 1220. As a modified example, the yoke 1180 may be arranged between the magnet 1220 and the holder 1210. Or, the yoke 1180 may be arranged on the lower surface of the magnet 1220. The yoke 1180 can prevent the magnetic flux leakage of the magnet 1220 and increase the force used for the electromagnetic interaction with the coil 1130.

[0095] The yoke 1180 can include a plurality of yokes. The yoke 1180 can include two yokes. The yoke 1180 can include a first yoke 1181. The first yoke 1181 can be arranged on the first magnet 1221. The first yoke 1181 can be arranged on the upper surface of the first magnet 1221. The first yoke 1181 can be formed in a size corresponding to the upper surface of the first magnet 1221. The yoke 1180 can include a second yoke 1182. The second yoke 1182 can be arranged on the second magnet 1222. The second yoke 1182 can be arranged on the upper surface of the second magnet 1222. The second yoke 1182 can be formed in a size corresponding to the upper surface of the second magnet 1222.

[0096] The lens driving device 1010 can include a moving part 1200. The moving part 1200 can be arranged in the fixed part 1100. The moving part 1200 can be arranged within the fixed part 1100. The moving part 1200 can be arranged on the fixed part 1100. The moving part 1200 can be movably arranged with respect to the fixed part 1100. The moving part 1200 can move with reference to the fixed part 1100 by a driving part. The moving part 1200 can move during AF driving. A lens can be coupled to the moving part 1200. The moving part 1200 can be elastically supported by an elastic member 1300.

[0097] The lens driving device 1010 can include a holder 1210. The moving part 1200 can include the holder 1210. The holder 1210 can be arranged within the housing 1110. The holder 1210 can be arranged in the housing 1210. The holder 1210 can be arranged on the base 1110. The holder 1210 can be arranged within the cover 1150. The holder 1210 can be arranged to be movable in the optical axis direction. The holder 1210 can be arranged to be movable in the optical axis direction within the housing 1210. The holder 1210 can be arranged to be movable in the optical axis direction on the base 1110. The holder 1210 can be arranged to be movable in the optical axis direction within the cover 1150. The holder 1210 can be coupled to the lens. The holder 1210 can move in the optical axis direction.

[0098] The holder 1210 can include a hole 1211. The hole 1211 can be hollow. A lens can be arranged in the hole 1211. The hole 1211 can penetrate the holder 1210 in the optical axis direction. The hole 1211 can be arranged at a position corresponding to the hole in the base 1140.

[0099] The holder 1210 can include a groove 1212. The groove 1212 can be an avoidance groove for the connecting portion of the upper elastic member. The groove 1212 can be formed in a concave shape on the upper surface of the holder 1210. The groove 1212 can be formed at a position corresponding to the connecting portion 1313 of the upper elastic member 1310. The groove 1212 can be formed so that the connecting portion 1313 of the upper elastic member 1310 does not contact the holder 1210 even when the holder 1210 moves upward in the optical axis direction.

[0100] The holder 1210 can include a groove 1213. The groove 1213 can be an avoidance groove for the connecting portion of the lower elastic member. The groove 1213 can be formed in a concave shape on the lower surface of the holder 1210. The groove 1213 can be formed at a position corresponding to the connecting portion 1323 of the lower elastic member 1320. The groove 1213 can be formed so that the connecting portion 1323 of the lower elastic member 1320 does not contact the holder 1210 even when the holder 1210 moves downward in the optical axis direction.

[0101] The holder 1210 can include a protrusion 1214. The protrusion 1214 can be a lateral stopper. Or, the protrusion 1214 can be an anti-rotation stopper. The protrusion 1214 can protrude from the side surface of the holder 1210. The protrusion 1214 can be formed on the outer surface of the holder 1210. At least a part of the protrusion 1214 can be disposed in the groove 1116 of the housing 1110. When the holder 1210 rotates, the protrusion 1214 can catch on the housing 1110 to limit the rotation of the holder 1210. Even when the holder 1210 moves horizontally, the protrusion 1214 of the holder 1210 can contact the housing 1110 to limit the amount of movement.

[0102] The holder 1210 can include a groove 1215. The groove 1215 can be a magnet accommodation groove. The groove 1215 can be formed in a concave shape on the side surface of the holder 1210. An adhesive for adhering the magnet 1220 to the holder 1210 can be disposed in the groove 1215. The magnet 1220 can be disposed in the groove 1215. The groove 1215 can include a shape corresponding to the magnet 1220.

[0103] Any one of the grooves 1212, 1213, and 1215 of the holder 1210 can be referred to as the 'first groove', another one as the'second groove', and the remaining one as the 'third groove'.

[0104] The lens driving device 1010 can include the magnet 1220. The moving part 1200 can include the magnet 1220. The driving part can include the magnet 1220. The magnet 1220 can be disposed on the holder 1210. The magnet 1220 can be disposed on the outer surface of the holder 1210. The magnet 1220 may be fixed to the holder 1210. The magnet 1220 may be coupled to the holder 1210. The magnet 1220 may be adhered to the holder 1210 with an adhesive. The magnet 1220 can be disposed within the cover 1150. The magnet 1220 can interact with the coil 1130. The magnet 1220 can interact electromagnetically with the coil 1130. The magnet 1220 can be disposed at a corresponding position with respect to the coil 1130. The magnet 1220 can face the coil 1130. The magnet 1220 can be opposed to the coil 1130. The magnet 1220 can overlap the coil 1130 in a direction perpendicular to the optical axis.

[0105] The magnet 1220 may be a four-pole magnet. The magnet 1220 may be a four-pole magnetized magnet. The upper part of the magnet 1220 can include an N pole and an S pole, the lower part of the magnet 1220 can include an S pole and an N pole, and the central part of the magnet 1220 can be a neutral zone. More specifically, the outer surface of the upper part of the magnet 1220 can be an N pole, and the inner surface of the upper part can be an S pole. The outer surface of the lower part of the magnet 1220 can be an S pole, and the inner surface of the lower part can be an N pole. The upper and lower parts of the magnet 1220 can be separated from each other by the neutral zone.

[0106] Magnet 1220 can be formed by stacking two single magnets vertically. Magnet 1220 can include a first magnet portion 1220-1. The first magnet portion 1220-1 can have an N pole and an S pole. Magnet 1220 can include a second magnet portion 1220-2. The second magnet portion 1220-2 can be disposed on the first magnet portion 1220-1. The second magnet portion 1220-2 can have an N pole and an S pole. Magnet 1220 can include a neutral portion 1220-3. The neutral portion 1220-3 can be disposed between the first magnet portion 1220-1 and the second magnet portion 1220-2.

[0107] Magnet 1220 can include a plurality of magnets. Magnet 1220 can include two magnets.

[0108] Magnet 1220 can include a first magnet 1221. The first magnet 1221 can be disposed in the holder 1210. The first magnet 1221 can be disposed on the outer surface of the holder 1210. The first magnet 1221 may be fixed to the holder 1210. The first magnet 1221 may be coupled to the holder 1210. The first magnet 1221 may be adhered to the holder 1210 with an adhesive. The first magnet 1221 can be disposed within the cover 1150. The first magnet 1221 can interact with the first coil 1131. The first magnet 1221 can interact electromagnetically with the first coil 1131. The first magnet 1221 can be disposed at a position corresponding to the first coil 1131. The first magnet 1221 can face the first coil 1131. The first magnet 1221 can oppose the first coil 1131. The first magnet 1221 can overlap the first coil 1131 in a direction perpendicular to the optical axis.

[0109] Magnet 1220 can include a second magnet 1222. The second magnet 1222 can be disposed in the holder 1210. The second magnet 1222 can be disposed on the outer surface of the holder 1210. The second magnet 1222 may be fixed to the holder 1210. The second magnet 1222 may be coupled to the holder 1210. The second magnet 1222 may be adhered to the holder 1210 with an adhesive. The second magnet 1222 can be disposed within the cover 1150. The second magnet 1222 can interact with the second coil 1132. The second magnet 1222 can interact electromagnetically with the second coil 1132. The second magnet 1222 can be disposed at a position corresponding to the second coil 1132. The second magnet 1222 can face the second coil 1132. The second magnet 1222 can oppose the second coil 1132. The second magnet 1222 can overlap the second coil 1132 in a direction perpendicular to the optical axis.

[0110] The lens driving device 1010 can include an elastic member 1300. The elastic member 1300 can connect the housing 1110 and the holder 1210. The elastic member 1300 can elastically connect the housing 1110 and the holder 1210. The elastic member 1300 can support the holder 1210 movably. The elastic member 1300 can support the holder 1210 so that it can move in the optical axis direction. The elastic member 1300 can elastically support the holder 1210. At least a part of the elastic member 1300 can have elasticity. The elastic member 1300 can connect the second coil 1132 and the substrate 1120. The elastic member 1300 can electrically connect the second coil 1132 and the substrate 1120. The elastic member 1300 can electrically connect the first coil 1131 and the substrate 1120 or the driver IC. The elastic member 1300 may be formed of a conductor. The elastic member 1300 may be formed of metal.

[0111] The lens driving device 1010 can include an upper elastic member 1310. The elastic member 1300 can include the upper elastic member 1310. The upper elastic member 1310 may be disposed on the upper surface of the holder 1210. The upper elastic member 1310 may be disposed above the holder 1210. The upper elastic member 1310 may be disposed on the holder 1210. The upper elastic member 1310 may be coupled to the upper surface of the holder 1210. The upper elastic member 1310 may be fixed to the upper surface of the holder 1210. The upper elastic member 1310 may be adhered to the upper surface of the holder 1210.

[0112] The upper elastic member 1310 can include a plurality of upper elastic members. The upper elastic member 1310 can include two upper elastic members. The upper elastic member 1310 can include first and second upper elastic members 1310-1 and 1310-2 spaced apart from each other.

[0113] The upper elastic member 1310 can include a first upper elastic member 1310-1. The first upper elastic member 1310-1 can be coupled to one end of the second coil 1132. The first upper elastic member 1310-1 can electrically connect one end of the second coil 1132 and the substrate 1120. The upper elastic member 1310 can include a second upper elastic member 1310-2. The second upper elastic member 1310-2 can be coupled to the other end of the second coil 1132. The second upper elastic member 1310-2 can electrically connect the other end of the second coil 1132 and the substrate 1120. The first upper elastic member 1310-1 and the second upper elastic member 1310-2 can be formed in corresponding shapes to each other.

[0114] The upper elastic member 1310 can include an inner portion 1311. The inner portion 1311 may be coupled to the upper surface of the holder 1210. The inner portion 1311 may be disposed on the upper surface of the holder 1210. The inner portion 1311 may be fixed to the upper surface of the holder 1210. The inner portion 1311 can include a hole that is coupled to a protrusion formed on the upper surface of the holder 1210.

[0115] The upper elastic member 1310 can include an outer portion 1312. The outer portion 1312 may be coupled to the upper surface of the housing 1110. The outer portion 1312 may be disposed on the upper surface of the housing 1110. The outer portion 1312 may be fixed to the upper surface of the housing 1110. The outer portion 1312 can include a hole that is coupled to a protrusion formed on the upper surface of the housing 1110.

[0116] The upper elastic member 1310 can include a connecting portion 1313. The connecting portion 1313 can connect the inner portion 1311 and the outer portion 1312. The connecting portion 1313 can elastically connect the inner portion 1311 and the outer portion 1312. At least a part of the connecting portion 1313 and the inner portion 1311 can move relative to the outer portion 1312. At least a part of the connecting portion 1313 can have elasticity. The connecting portion 1313 can include a bent shape.

[0117] The upper elastic member 1310 can include a terminal portion 1314. The terminal portion 1314 can extend from the outer portion 1312. The terminal portion 1314 can be coupled to the terminal 1122 of the substrate 1120. The terminal portion 1314 can be formed in a shape that is easily coupled to the terminal 1122 of the substrate 1120. The terminal portion 1314 can be formed integrally with the outer portion 1312.

[0118] The upper elastic member 1310 can include a groove 1315. The end of the second coil 1132 can be coupled to the groove 1315. The end of the second coil 1132 can be coupled to the groove 1315 through soldering.

[0119] The lens driving device 1010 can include a lower elastic member 1320. The elastic member 1300 can include the lower elastic member 1320. The lower elastic member 1320 may be disposed on the lower surface of the holder 1210. The lower elastic member 1320 may be disposed below the holder 1210. The lower elastic member 1320 may be disposed under the holder 1210. The lower elastic member 1320 may be coupled to the lower surface of the holder 1210. The lower elastic member 1320 may be fixed to the lower surface of the holder 1210. The lower elastic member 1320 may be adhered to the lower surface of the holder 1210. The lower elastic member 1320 can be integrally formed. The lower elastic member 1320 can connect the holder 1210 and the housing 1110. Also, the lower elastic member 1320 can connect the holder 1210 and the base 1140.

[0120] The lower elastic member 1320 can include an inner portion 1321. The inner portion 1321 may be coupled to the lower surface of the holder 1210. The inner portion 1321 may be disposed on the lower surface of the holder 1210. The inner portion 1321 may be fixed to the lower surface of the holder 1210. The inner portion 1321 can include a hole that is coupled to a protrusion formed on the lower surface of the holder 1210.

[0121] The lower elastic member 1320 can include an outer portion 1322. The outer portion 1322 may be coupled to the lower surface of the housing 1110. The outer portion 1322 may be disposed on the lower surface of the housing 1110. The outer portion 1322 may be fixed to the lower surface of the housing 1110. The outer portion 1322 can include a hole that is coupled to a protrusion formed on the lower surface of the housing 1110. Or, the outer portion 1322 may be coupled to the upper surface of the base 1140. The outer portion 1322 may be disposed on the upper surface of the base 1140. The outer portion 1322 may be fixed to the upper surface of the base 1140. The outer portion 1322 can include a hole that is coupled to a protrusion formed on the upper surface of the base 1140.

[0122] The lower elastic member 1320 can include a connecting portion 1323. The connecting portion 1323 can connect the inner portion 1321 and the outer portion 1322. The connecting portion 1323 can elastically connect the inner portion 1321 and the outer portion 1322. At least a part of the connecting portion 1323 and the inner portion 1321 can move relative to the outer portion 1322. At least a part of the connecting portion 1323 can have elasticity. The connecting portion 1323 can include a bent shape.

[0123] As a modification, the lower elastic member 1320 can include a plurality of lower elastic members. The lower elastic member 1320 can include two lower elastic members. The lower elastic member 1320 can include two lower elastic members spaced apart from each other. The lower elastic member 1320 can include a first lower elastic member. The lower elastic member 1310 can include a second lower elastic member. The second lower elastic member can be spaced apart from the first lower elastic member. The first lower elastic member can be coupled to one end of the second coil 1132. The second lower elastic member can be coupled to the other end of the second coil 1132. In the modification, the upper elastic member 1310 may be integrally formed.

[0124] As another modification, both the upper elastic member 1310 and the lower elastic member 1320 may be integrally formed respectively. At this time, the upper elastic member 1310 can be coupled to one end of the second coil 1132. The lower elastic member 1320 can be coupled to the other end of the second coil 1132. The upper elastic member 1310 can electrically connect one end of the second coil 1132 and the substrate 1120. The lower elastic member 1320 can electrically connect the other end of the second coil 1132 and the substrate 1120.

[0125] Hereinafter, the autofocus drive of the lens driving device according to the first embodiment of the present invention will be described with reference to the drawings.

[0126] FIGS. 17 to 19 are diagrams for explaining autofocus driving of the lens driving device according to the first embodiment of the present invention. FIG. 17 is a cross-sectional view showing the state of the moving part in the initial state where no current is applied to the coil. FIG. 18 is a cross-sectional view showing the state where a forward current is applied to the coil and the moving part has moved upward in the optical axis direction. FIG. 19 is a cross-sectional view showing the state where a reverse current is applied to the coil and the moving part has moved downward in the optical axis direction.

[0127] The moving part 1200 can be disposed at a position separated from both the upper plate 1151 of the cover 1150 and the base 1140 in the initial position where no current is applied to the coil 1130.

[0128] When a forward current is applied to the coil 1130, due to the electromagnetic interaction between the coil 1130 and the magnet 1220, the magnet 1220 can move upward in the optical axis direction (see A in FIG. 18). At this time, together with the magnet 1220, the holder 1210 and the lens can move upward in the optical axis direction. As a result, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0129] When a reverse current is applied to the coil 1130, due to the electromagnetic interaction between the coil 1130 and the magnet 1220, the magnet 1220 can move downward in the optical axis direction (see B in FIG. 19). At this time, together with the magnet 1220, the holder 1210 and the lens can move downward in the optical axis direction. As a result, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0130] On the other hand, during the movement process of the magnet 1220, the sensing part of the driver IC 1160 can sense the magnetic field intensity of the magnet 1220 and sense the movement amount and position of the magnet 1220. The movement amount and position of the magnet 1220 sensed by the driver IC 1160 can be used for autofocus feedback control.

[0131] Hereinafter, a camera device according to a first embodiment of the present invention will be described with reference to the drawings.

[0132] FIG. 20 is an exploded perspective view of a camera device according to a first embodiment of the present invention.

[0133] The camera device 1010A can include a camera module.

[0134] The camera device 1010A can include a lens module 1020. The lens module 1020 can include at least one lens. The lens can be disposed at a position corresponding to the image sensor 1060. The lens module 1020 can include a lens and a barrel. The lens module 1020 can be coupled to the holder 1210 of the lens driving device 1010. The lens module 1020 may be coupled to the holder 1210 by screwing and / or an adhesive. The lens module 1020 can move integrally with the holder 1210.

[0135] The camera device 1010A can include a filter 1030. The filter 1030 can serve to block light in a specific frequency band in the light passing through the lens module 1020 from entering the image sensor 1060. The filter 1030 can be disposed parallel to the x-y plane. The filter 1030 can be disposed between the lens module 1020 and the image sensor 1060. The filter 1030 can be disposed on the sensor base 1040. As a modification, the filter 1030 may be disposed on the base 1110. The filter 1030 can include an infrared filter. The infrared filter can block light in the infrared region from entering the image sensor 1060.

[0136] The camera device 1010A can include a sensor base 1040. The sensor base 1040 can be disposed between the lens driving device 1010 and the printed circuit board 1050. The sensor base 1040 can include a protrusion 141 on which the filter 1030 is disposed. An opening can be formed in a portion of the sensor base 1040 where the filter 1030 is disposed so that light passing through the filter 1030 can be incident on the image sensor 1060. An adhesive member can couple or adhere the base 1310 of the lens driving device 1010 to the sensor base 1040. The adhesive member can additionally serve to prevent foreign matter from flowing into the lens driving device 1010. The adhesive member can include any one or more of epoxy, a thermosetting adhesive, and an ultraviolet curable adhesive.

[0137] The camera device 1010A can include a printed circuit board (PCB) 1050. The printed circuit board 1050 may be a substrate or a circuit board. The lens driving device 1010 can be disposed on the printed circuit board 1050. The sensor base 1040 can be disposed between the printed circuit board 1050 and the lens driving device 1010. The printed circuit board 1050 can be electrically connected to the lens driving device 1010. The image sensor 1060 can be disposed on the printed circuit board 1050. The printed circuit board 1050 may be provided with various circuits, elements, control units, etc. for converting an image formed on the image sensor 1060 into an electrical signal and transmitting it to an external device.

[0138] The camera device 1010A can include an image sensor 1060. The image sensor 1060 can be configured such that light that has passed through the lens and filter 1030 is incident thereon and an image is formed. The image sensor 1060 can be mounted on the printed circuit board 1050. The image sensor 1060 can be electrically connected to the printed circuit board 1050. As an example, the image sensor 1060 may be coupled to the printed circuit board 1050 by surface mounting technology (SMT). As another example, the image sensor 1060 may be coupled to the printed circuit board 1050 by flip chip technology. The image sensor 1060 can be arranged such that its optical axis coincides with the optical axis of the lens. That is, the optical axis of the image sensor 1060 and the optical axis of the lens can be aligned. The image sensor 1060 can convert light irradiated on the effective image area of the image sensor 1060 into an electrical signal. The image sensor 1060 may be any one of a CCD (charge coupled device), MOS (metal oxide semi-conductor), CPD, and CID.

[0139] The camera device 1010A can include a motion sensor. The motion sensor can be mounted on the printed circuit board 1050. The motion sensor can be electrically connected to the control unit 1080 via a circuit pattern provided on the printed circuit board 1050. The motion sensor can output rotational angular velocity information due to the movement of the camera device 1010A. The motion sensor can include a two-axis or three-axis gyro sensor, or an angular velocity sensor.

[0140] The camera device 1010A can include a control unit 1080. The control unit 1080 can be arranged on a printed circuit board 1050. The control unit 1080 can be electrically connected to a coil 1330 of the lens driving device 1010. The control unit 1080 can individually control the direction, intensity, amplitude, etc. of the current supplied to the coil 1330. The control unit 1080 can control the lens driving device 1010 to perform an autofocus function and / or an anti-shake function. Further, the control unit 1080 can perform autofocus feedback control and / or anti-shake feedback control on the lens driving device 1010.

[0141] The camera device 1010A can include a connector 1090. The connector 1090 can be electrically connected to the printed circuit board 1050. The connector 1090 can include a port for electrically connecting to an external device.

[0142] Hereinafter, the triple camera device according to the first embodiment of the present invention will be described with reference to the drawings.

[0143] FIG. 21 is a conceptual diagram of the triple camera device according to the first embodiment of the present invention.

[0144] As shown in FIG. 21(a), the triple camera device 1010A can include a first camera device 1011, a second camera device 1012, and a third camera device arranged between the first camera device 1011 and the second camera device 1012. As an example, the third camera device can include the lens driving device 1010 described above.

[0145] The first camera device 1011 can be a main OIS camera device. The first camera device 1011 can include an OIS driving unit and an AF driving unit. The second camera device 1012 can be a zoom camera device. The second camera device 1012 can include an AF driving unit, a zoom driving unit, and an OIS driving unit. The AF driving unit and the zoom driving unit can be formed as one driving unit. The third camera device may be an ultra-wide camera device. The third camera device may be a wide-angle camera device.

[0146] The first camera device 1011 can include three drive magnets 1011-1. The drive magnets 1011-1 of the first camera device 1011 can be arranged except for the side surface adjacent to the third camera device.

[0147] The second camera device 1012 can include five drive magnets 1012-1. The second camera device 1012 can include three OIS drive magnets for OIS driving and two drive magnets for AF and Zoom driving.

[0148] The third camera device can include two magnets 1220. The magnets 1220 of the third camera device can be arranged to face the other two side surfaces rather than the side surfaces adjacent to the first camera device 1011 and the second camera device 1012. Through this, the magnetic field interference exerted by the first camera device 1011 and the second camera device 1012 on the third camera device can be minimized.

[0149] The cover 1150 of the third camera device can include four side plates. The side plates 1152 of the cover 1150 can include a first side plate and a second side plate arranged on opposite sides of each other, and a third side plate and a fourth side plate arranged on opposite sides of each other. The first side plate can be arranged to face the first camera device 1011, and the second side plate can be arranged to face the second camera device 1012. The magnets 1220 of the third camera device can include a first magnet 1221 arranged to face the third side plate and a second magnet 1222 arranged to face the fourth side plate.

[0150] As shown in FIG. 21(b), the camera device 1010A' can include the first camera device 1011 and the third camera device. At this time, the third camera device can include the lens driving device 1010.

[0151] As shown in FIG. 21(c), the camera device 1010A'' can include the second camera device 1012 and the third camera device. At this time, the third camera device can include the lens driving device 1010.

[0152] As shown in FIG. 21(d), the camera device 1010A''' can include the first camera device 1011, the third camera device, and the second camera device 1012 disposed between the first camera device 1011 and the third camera device. At this time, the third camera device can include the lens driving device 1010.

[0153] The embodiments shown in FIGS. 21(a) to (d) are illustrative, and the lens driving device 1010 according to the present embodiment may be included in a dual camera, a triple camera, or even a camera group arranged in more than that. Further, the arrangement of the first to third camera devices is not limited to the illustrated embodiments, and may be arranged in various orders by changing the order.

[0154] Hereinafter, an optical device according to a first embodiment of the present invention will be described with reference to the drawings.

[0155] FIG. 22 is a perspective view of an optical device according to a first embodiment of the present invention, and FIG. 23 is a perspective view of an optical device according to a modified example.

[0156] The optical device 1001 can include any one or more of a mobile phone, a mobile terminal, a mobile device, a smart phone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcast terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and a navigation device. The optical device 1001 can include any device for taking videos or photos.

[0157] The optical device 1001 can include a main body 1020. The optical device 1001 can include a camera device 1010A. The camera device 1010A can be disposed on the main body 1020. The camera device 1010A can photograph a subject. The optical device 1001 can include a display. The display can be disposed on the main body 1020. The display can output any one or more of the video and image photographed by the camera device 1010A. The display can be disposed on the first surface of the main body 1020. The camera device 1010A can be disposed on any one or more of the first surface of the main body 1020 and the second surface opposite to the first surface. As shown in FIG. 22, in the camera device 1010A, the triple cameras can be arranged in the vertical direction. As shown in FIG. 23, in the camera device 1010A-1, the triple cameras can be arranged in the horizontal direction.

[0158] For convenience of explanation, the lens driving device according to the embodiment will be described using the Cartesian coordinate system (x, y, z), but it can also be described using other coordinate systems, and the embodiment is not limited thereto. In each drawing, the x-axis and the y-axis mean directions perpendicular to the z-axis which is the optical axis direction, the z-axis direction which is the optical axis or a direction parallel to the optical axis is referred to as the 'first direction', the x-axis direction is referred to as the'second direction', and the y-axis direction can be referred to as the 'third direction'.

[0159] Also, for example, the optical axis may be the optical axis of a lens mounted on a lens barrel coupled to the bobbin. Or, for example, the optical axis may be an axis perpendicular to the imaging region of the image sensor and passing through the center of the imaging region. The first direction may be a direction perpendicular to the imaging region of the image sensor. Also, for example, the optical axis direction may be a direction parallel to the optical axis.

[0160] "Auto-focusing" means automatically forming an image of the subject on the image sensor surface. The lens driving device according to the embodiment can perform an auto-focusing operation of moving an optical module composed of at least one lens in the first direction.

[0161] Also, in the following description, "terminal" may be expressed in place of a pad, electrode, conductive layer, or bonding portion, etc.

[0162] Hereinafter, the lens driving device may be expressed in place of "Voice Coil Motor", "lens moving device", "lens moving portion", or "actuator".

[0163] Hereinafter, the camera device may be expressed in place of "camera module", "camera assembly", "camera unit", "camera", "imaging device", or "lens moving device", etc.

[0164] FIG. 24 is an exploded perspective view of a lens driving device 100 according to a second embodiment of the present invention, FIG. 25 is a perspective view of the lens driving device 100 excluding the cover member 300 of FIG. 24, FIG. 26 is an exploded perspective view of a bobbin and a housing, FIG. 27A is a first perspective view of a bobbin 110, a coil 120, a sensing magnet 180, and a balancing magnet 185, FIG. 27B is a second perspective view of the bobbin 110, the coil 120, the sensing magnet 180, and the balancing magnet 185, FIG. 28A is a first perspective view of a housing 140, a magnet 130, a position sensor 170, and a capacitor 195, FIG. 28B is a second perspective view of the housing 140, the magnet 130, the position sensor 170, and the capacitor 195, FIG. 29 is a plan view of an upper elastic member 150, FIG. 30 is a plan view of a lower elastic member 160, FIG. 31 is a coupling diagram of the lower elastic member 160, a first coil unit 120A, a second coil unit 120B, and a circuit board 190, FIG. 32 is a perspective view of the circuit board 190, the position sensor 170, the capacitor 195, the magnet 130, and the coil 120, FIG. 33 is a perspective view of the circuit board 190, the lower elastic member 160, and a base 210, FIG. 34A is a cross-sectional view of the lens driving device 100 in the AB direction of FIG. 2, FIG. 34B is a cross-sectional view of the lens driving device 100 in the CD direction of FIG. 2, and FIG. 34C is a cross-sectional view of the lens driving device 100 in the EF direction of FIG. 2.

[0165] Referring to FIGS. 24 to 34C, the lens driving device 100 includes a housing 140, a bobbin 110, a coil 120, a magnet 130, a sensing magnet 180, and a position sensor 170.

[0166] The lens driving device 100 can include an elastic member that supports the bobbin 110 with respect to the housing 140. The elastic member can include at least one of an upper elastic member 150 and a lower elastic member 160.

[0167] The lens driving device 100 can further include a circuit board 190 that is electrically connected to the position sensor. Further, the lens driving device 100 can further include a balancing magnet 185. Further, the lens driving device 100 can further include a capacitor 195. Further, the lens driving device 100 can further include a cover member 300 and a base 210.

[0168] The bobbin 110 is disposed inside the housing 140 and can move in the direction of the optical axis OA or the first direction (for example, the Z-axis direction) by the electromagnetic interaction between the coil 120 and the magnet 130.

[0169] A lens module 400 may be coupled or attached to the bobbin 110. The lens module 400 can include at least one of a lens and a lens barrel. The bobbin 110 is disposed within the housing 140. The bobbin 110 can include an opening 101 to which the lens module 400 is coupled or attached. For example, the opening 101 of the bobbin 110 may be a hollow or through hole, and its shape may be circular, elliptical, or polygonal, but is not limited thereto.

[0170] The bobbin 110 can include a first coupling portion disposed at the upper part, upper surface, or upper end for coupling and fixing to the upper elastic member 150 (for example, the first inner frame 151). The bobbin 110 can include a second coupling portion disposed at the lower part, lower surface, or lower end for coupling and fixing to the lower elastic member 160 (for example, the second inner frame 161).

[0171] For example, the first and second coupling portions of the bobbin 110 are planar, but in other embodiments, they may be in the shape of protrusions or grooves.

[0172] The bobbin 110 can include a first relief groove 112a provided in a region of the upper surface that corresponds to, faces, or overlaps with the first frame connection portion 153 of the upper elastic member 150 in the optical axis direction. For example, the first relief groove 112a may have a shape recessed from the upper surface of the bobbin 110. Further, the bobbin 110 can include a second relief groove 112b in a region of the lower surface that corresponds to, faces, or overlaps with the second frame connection portion 163 of the lower elastic member 160 in the optical axis direction. For example, the second relief groove 112b may have a shape recessed from the lower surface of the bobbin 110.

[0173] Due to the first relief groove 112a and the second relief groove 112b of the bobbin 110, when the bobbin 110 moves in the first direction, the spatial interference between the first frame connection portion 153 and the second frame connection portion 163 and the bobbin 110 can be removed, whereby the first frame connection portion 153 and the second frame connection portion 163 can be easily elastically deformed.

[0174] The bobbin 110 can include a plurality of side surfaces or outer surfaces. The bobbin 110 can include side portions and corner portions. For example, the bobbin 110 can include first to fourth side portions 110A to 110D and first to fourth corner portions 115A to 115D.

[0175] For example, the first side portion 110A and the second side portion 110B of the bobbin 110 can face each other across the optical axis or be located on opposite sides, and the third side portion 110C and the fourth side portion 110D of the bobbin 110 can face each other across the optical axis OA or be located on opposite sides.

[0176] For example, the first side portion 110A and the second side portion 110B of the bobbin 110 can face each other in the second direction (for example, the X-axis direction) or be located on opposite sides, and the third side portion 110C and the fourth side portion 110D of the bobbin 110 can face each other in the third direction (for example, the Y-axis direction) or be located on opposite sides.

[0177] For example, each of the first to fourth corner portions 115A to 115D can be disposed between two adjacent side portions of the bobbin 110. The side surface or the outer surface of the first to fourth side portions 110A to 110D of the bobbin 110 may be expressed as the "first to fourth side surfaces" or the "first to fourth outer side surfaces" of the bobbin 110.

[0178] The bobbin 110 can include at least one mounting portion 105 for disposing or placing the coil 120. The mounting portion 105 can be a groove recessed from the outer surface of the bobbin 110. For example, the bobbin 110 can include a first mounting portion 105A for disposing or placing the first coil unit 120A, and a second mounting portion 105B for disposing or placing the second coil unit 120A.

[0179] For example, the first mounting portion 105A can be disposed on the first side portion 110A of the bobbin 110, and the second mounting portion 105B can be disposed on the second side portion 110B of the bobbin 110. For example, the first mounting portion 105A can be close to one (e.g., 115D) of two corner portions (e.g., 115B, 115D) of the bobbin 110 that face each other across the optical axis or are located on opposite sides, and the second mounting portion 105B can be close to the other (e.g., 115B) of the two corner portions (e.g., 115B, 115D) of the bobbin 110 that face each other across the optical axis or are located on opposite sides.

[0180] The bobbin 110 can include a protrusion 117 for coupling with the hollow 12A of the coil 120. The protrusion 117 can be disposed within the mounting portion 105. For example, the protrusion 117 can protrude from the bottom surface of the mounting portion 105. For example, the protrusion 117 can protrude in a direction perpendicular to the optical axis.

[0181] For example, the bobbin 110 can include protrusions 117 disposed on two sides facing each other or located on opposite sides. For example, the bobbin 110 can include two protrusions 117, and each of the two protrusions can be inserted into or coupled to a corresponding one of the hollows 12A of the first and second coil units 120A, 120B. The protrusions 117 can have a cylindrical shape, a polyhedral shape, or a cross shape, and can have various shapes that can be coupled to the hollows of the coil unit. In other embodiments, the protrusions 117 may be omitted. For example, the number of protrusions disposed on one side of the bobbin 110 and coupled to the hollow of one coil unit may be one or more.

[0182] In other embodiments, the coil 120 can also surround the outer peripheral surface of the bobbin 110 in a clockwise or counterclockwise direction with respect to the optical axis.

[0183] In other embodiments, the bobbin 110 may be fixed to the outer surface of the bobbin 110 without a mounting portion for disposing the coil 120.

[0184] Also, for the placement or mounting of the sensing magnet 180, the bobbin 110 can include a groove 18A provided on the first side portion 110A of the bobbin 110. For example, the groove 18A can include an opening that is open to the upper surface of the bobbin 110 to facilitate the attachment of the sensing magnet.

[0185] Also, for the placement or mounting of the balancing magnet 185, the bobbin 110 can include a groove 19B provided on the second side portion 110B of the bobbin 110.

[0186] Although not shown in FIG. 26, the bobbin 110 may include a first stopper that protrudes in an upward direction from the upper surface. Further, the bobbin 110 may also include a second stopper that protrudes in a downward direction from the lower surface. When the bobbin 110 moves in the first direction for autofocusing, the first stopper and the second stopper of the bobbin 110 can prevent the upper surface or the lower surface of the bobbin 110 from directly colliding with the inner wall of the cover member 300 or the upper surface of the base 210 even if the bobbin 110 moves beyond a specified range due to an external impact or the like.

[0187] In another embodiment, the cover member 300 may include a protruding portion that protrudes from the upper plate 301 toward the bobbin 110 and corresponds to, faces, or overlaps with the first relief portion 112A of the bobbin 110 in the optical axis direction, and the protruding portion of the cover member 300 can serve as a stopper.

[0188] The bobbin 110 may include protruding portions 113A and 113B that protrude in a direction perpendicular to the optical axis. For example, the protruding portions 110 may protrude from the outer surface of the bobbin 110. For example, the bobbin 110 may include protruding portions 113A and 113B that protrude from the outer surface of at least one of the third side portion 110C and the fourth side portion 110D of the bobbin 110. The protruding portions 113A and 113B may be disposed in the groove portion 144 of the housing 140, and can prevent the bobbin 110 from rotating or tilting beyond a preset range. Further, in an embodiment in which a stepped portion corresponding to, facing, or overlapping with the protruding portions 113A and 133B is formed in the groove portion 144 of the housing 140, the protruding portions 113A and 113B of the bobbin 110 and the stepped portion of the housing 140 can also serve as a stopper to prevent the bobbin 110 from moving downward beyond a preset range.

[0189] Referring to FIG. 27B, the bobbin 110 can include openings 118A and 118B that are open to the lower surface of the bobbin 110 and through which one end and the other end of the coil units 120A and 120B pass. For example, the bobbin 110 can include a first opening 118A through which one end and the other end of the first coil unit 120A pass, and a second opening 118B through which one end and the other end of the second coil unit 120B pass. For example, the first opening 118A can communicate with the first placement portion 105A, and the second opening 118B can communicate with the second placement portion 105B.

[0190] The coil 120 may be disposed, coupled, or fixed to the bobbin 110. For example, the coil 120 may be disposed on the outer surface of the bobbin 110. The coil 120 can be a driving coil that electromagnetically interacts with the magnet 130. The coil 120 can be disposed within or coupled to the placement portion 105 of the bobbin 110.

[0191] In order to generate an electromagnetic force due to the interaction with the magnet 130, a driving signal (e.g., a driving current or voltage) can be applied to the coil 120. For example, the driving signal applied to the coil 120 may be a DC signal, but is not limited thereto, and can be an AC signal or can include a DC signal and an AC signal.

[0192] Due to the electromagnetic force caused by the interaction between the coil 120 and the magnet 130, the AF movable part can move in the first direction.

[0193] By controlling the intensity and / or polarity (e.g., the direction in which the current flows) of the driving signal applied to the coil 120, and adjusting the intensity and / or direction of the electromagnetic force caused by the interaction between the coil 120 and the magnet 130, the movement of the AF movable part in the first direction can be controlled, thereby enabling an autofocusing function.

[0194] Due to the electromagnetic force generated by the interaction between the coil 120 and the magnet 130, the AF movable part can be driven unidirectionally or bidirectionally. Here, unidirectional drive means that, with reference to the initial position of the AF movable part, the AF movable part moves in a single direction, for example, the upward direction (e.g., the upward direction (+Z-axis direction)). Bidirectional drive means that, with reference to the initial position of the AF movable part, the AF movable part moves in both directions (e.g., the upward direction or the downward direction).

[0195] For example, the initial position of the bobbin 110 can be the first position of the AF movable part (e.g., the bobbin) when no power or drive signal is applied to the coil 120. Or, the initial position of the bobbin 110 can be the position where the AF movable part is placed when the upper elastic member 150 and the lower elastic member 160 are elastically deformed only by the weight of the AF movable part.

[0196] At the same time, the initial position of the bobbin 110 can be the position where the AF movable part is placed when gravity acts in the direction from the bobbin 110 to the base 210, or conversely, when gravity acts in the direction from the base 210 to the bobbin 110.

[0197] The AF movable part can include the bobbin 110 and a configuration that is coupled to the bobbin 110 or mounted on the bobbin 110 and moves together with the bobbin 110. For example, the AF movable part can include at least one of the bobbin 110, the coil 120, the sensing magnet 180, and the balancing magnet 185. Or, when the lens module 400 is mounted, the AF movable part can also include the lens module 400.

[0198] The coil 120 can have a closed-loop shape with a hollow, for example, a ring shape.

[0199] For example, the coil 120 may include a first coil unit 120A and a second coil unit 120B. For example, the first coil unit 120A may be disposed on the first side portion 110A of the bobbin 110, and the second coil unit 120B may be disposed on the second side portion 110B of the bobbin 110.

[0200] For example, the first coil unit 120A may be disposed on the first side surface or the first outer surface of the bobbin 110, and the second coil unit 120B may be disposed on the second side surface or the second outer surface of the bobbin 110 that faces the first side surface of the bobbin 110.

[0201] The coil 120 may not be disposed on the third side portion 110C (or the third side surface of the bobbin) and the fourth side portion 110D (or the fourth side surface of the bobbin 110) of the bobbin 110. For example, in the direction from the third side portion 110C to the fourth side portion 110D of the bobbin 110, the third side portion 110C and the fourth side portion 110D of the bobbin 110 may not overlap with the coil 120.

[0202] For example, the first coil unit 120A may be in a ring shape wound in a clockwise or counterclockwise direction with respect to an axis perpendicular to the outer surface of the first side portion 110A of the bobbin 110 (or an axis perpendicular to the optical axis). Also, the second coil unit 120B may be in a ring shape wound in a clockwise or counterclockwise direction with respect to an axis perpendicular to the outer surface of the second side portion 110B of the bobbin 110 (or an axis perpendicular to the optical axis).

[0203] In other embodiments, each of the first coil unit 120A and the second coil unit 120B may be embodied in the form of a coil ring, and the first coil unit 120A may be attached or fixed to the first side portion 110A (or the mounting portion 105A) of the bobbin 110 by an adhesive member, and the second coil unit 120B may be attached or fixed to the second side portion 110B (or the mounting portion 105B) of the bobbin 110 by an adhesive member.

[0204] The coil 120 can be electrically connected to at least one of the upper elastic member 150 and the lower elastic member 160. The coil 120 can be electrically connected to the circuit board 190 via at least one of the upper elastic member 150 and the lower elastic member 160.

[0205] The first coil unit 120A and the second coil unit 120B can be connected in series with each other.

[0206] For example, the first coil unit 120A and the second coil unit 120B can be connected in series by at least one of the upper elastic member 150 and the lower elastic member 160.

[0207] For example, at the initial position of the bobbin 110, the coil 120 disposed on the bobbin 110 may pass through the optical axis and face or overlap the magnet 130 in a direction perpendicular to the optical axis (for example, the second direction, the X-axis direction).

[0208] Also, for example, at the initial position of the bobbin 110, at least a part of the sensing magnet 180 disposed on the bobbin 110 may pass through the optical axis and face or overlap the position sensor 170 in a direction perpendicular to the optical axis (for example, the second direction, the X-axis direction). In other embodiments, at the initial position of the bobbin 110, the sensing magnet 180 may not overlap the position sensor 170 in a direction perpendicular to the optical axis (for example, the second direction, the X-axis direction).

[0209] The sensing magnet 180 can be disposed on the bobbin 110. For example, the sensing magnet 180 may be disposed on the first side portion 110A of the bobbin 110. For example, the sensing magnet 180 may be disposed in the groove portion 18A of the bobbin 110. For example, at least a part of the sensing magnet 180 may be exposed from the groove portion 18A. For example, a part of one surface of the sensing magnet 180 may be exposed on the outer surface and / or the lower surface of the bobbin 110, but in other embodiments, it may not be exposed on the outer surface of the bobbin 110.

[0210] The sensing magnet 180 may be a two-pole magnet or a magnet including two N poles and two S poles. For example, the sensing magnet 180 may include a first magnet portion including an N pole and an S pole, a second magnet portion including an S pole and an N pole, and a non-magnetic partition wall positioned between the first magnet portion and the second magnet portion. The description of the two-pole magnet of the magnet 130 described later can be applied or analogized to the sensing magnet 180.

[0211] In other embodiments, the sensing magnet 180 may be a single-pole magnet including one N pole and one S pole. For example, the sensing magnet 180 may be a single-pole magnet arranged such that the upper surface is the N pole and the lower surface is the S pole. In other embodiments, the sensing magnet 180 may be a single-pole magnet arranged such that the upper surface is the S pole and the lower surface is the N pole.

[0212] Or, for example, the sensing magnet 180 may be arranged such that the boundary surface between the N pole and the S pole is parallel to the direction perpendicular to the optical axis, but is not limited thereto. For example, in other embodiments, the boundary surface between the N pole and the S pole may be parallel to the optical axis.

[0213] Due to the electromagnetic force caused by the interaction between the coil 120 and the magnet 130, the sensing magnet 180 can move in the direction of the optical axis OA together with the bobbin 110. The position sensor 170 can sense the sensing magnet 180 moving in the optical axis direction or sense the intensity of the magnetic field of the sensing magnet 180, and can output an output signal based on the sensed result. For example, the control unit 830 of the camera device 200 or the control unit 780 of the terminal device 200A can detect the displacement of the bobbin 110 in the optical axis direction based on the output signal output by the position sensor 170.

[0214] The balancing magnet 185 can be arranged on the bobbin 110. The balancing magnet 185 can be arranged on the second side portion 110B of the bobbin 110. For example, the sensing magnet 180 and the first coil unit 120A may be arranged on the first side portion 110A of the bobbin 110. Also, the balancing magnet 185 and the second coil unit 120B may be arranged on the second side portion 110B of the bobbin 110.

[0215] The balancing magnet 185 can cancel the influence of the magnetic field of the sensing magnet 180 on the coil 120 and / or the magnet 130, and can take the weight balance of the AF movable part, whereby the embodiment can perform more accurate AF driving. For example, the magnet 130 may be represented as an alternative to any one of the first to third magnets, the sensing magnet 180 may be represented as an alternative to another one of the first to third magnets, and the balancing magnet 185 may be represented as an alternative to the remaining one of the first to third magnets.

[0216] The housing 140 houses the AF movable part, for example, the bobbin 110, inside.

[0217] The housing 140 can support the magnet 130. The housing 140 may be columnar including an opening 201 for housing the bobbin 110. For example, the housing 140 can include a plurality of side portions 141A to 141D surrounding the opening 201 and a plurality of corner portions 142A to 142D.

[0218] For example, the opening 210 may be a through hole or hollow that penetrates the housing 140 in the optical axis direction. For example, the opening 210 may be polygonal (e.g., quadrilateral or octagonal) or circular, but in other embodiments, it can have various shapes suitable for housing the bobbin 110.

[0219] For example, the housing 140 can include first to fourth side portions 141A to 141D corresponding to, facing, or overlapping the first to fourth side portions 110A to 110D of the bobbin 110. Also, for example, the housing 140 can include first to fourth corner portions 142A to 142D corresponding to, facing, or overlapping the first to fourth corner portions 115A to 115D of the bobbin 110.

[0220] For example, the housing 140 can include first to fourth side portions 141A to 141D spaced apart from each other, a first corner portion 142A located between the first side portion 141A and the third side portion 141C, a second corner portion 142B located between the second side portion 141B and the third side portion 141C, a third corner portion 142C located between the second side portion 141B and the fourth side portion 141D, and a fourth corner portion 142D located between the fourth side portion 141D and the first side portion 141A. For example, the third side portion 141C and the fourth side portion 141D of the housing 140 may be disposed between the first side portion 141B and the second side portion 141B of the housing 140.

[0221] The housing 140 can include a first side surface (or a first outer surface) corresponding to the first side surface (or the first outer surface) of the bobbin 110, a second side surface (or a second outer surface) corresponding to the second side surface (or the second outer surface) of the bobbin 110, a third side surface (or a third outer surface) corresponding to the third side surface (or the third outer surface) of the bobbin 110, and a fourth side surface (or a fourth outer surface) corresponding to the fourth side surface (or the fourth outer surface) of the bobbin 110. The third and fourth side surfaces (or the third and fourth outer surfaces) of the housing 140 can be disposed between the first and second side surfaces (or the first and second outer surfaces) of the housing 140.

[0222] For example, each of the first to fourth side surfaces (or the first to fourth outer surfaces) of the housing 140 may be any one corresponding side surface or outer surface among the first to fourth side portions 141A to 141D of the housing 140.

[0223] For example, each of the first to fourth side portions 141A to 141D of the housing 140 can correspond to, face, or overlap with any one of the four side plates of the cover member 300. The side portion of the housing and the side plate of the cover member 300 that correspond to each other can be arranged parallel to each other.

[0224] For the arrangement or mounting of the magnet 130, the housing 140 can include a mounting portion 17A. For example, the housing 140 can include a first mounting portion 17A for arranging, mounting, or coupling the first magnet unit 130A, and a second mounting portion 17B for arranging, mounting, or coupling the second magnet unit 130B.

[0225] For example, the first mounting portion 17A may be arranged or provided on the first side portion 141A of the housing 140, and the second mounting portion 17B may be arranged or provided on the second side portion 141B of the housing 140.

[0226] For example, the mounting portion 17 may be in the form of an opening or a through-hole that penetrates the side portion (e.g., 141A, 141B) of the housing 140. In other embodiments, the mounting portion 17 may be in the form of a groove or a concave groove. In still other embodiments, the mounting portion of the housing may have a planar shape instead of a groove shape.

[0227] For example, the magnet 130 may be coupled or fixed to the mounting portion 17 of the housing 140 by an adhesive.

[0228] To prevent direct collision with the inner surface of the upper plate of the cover member 300, the housing 140 can include a stopper 145 arranged or provided on the upper part, upper surface, or upper end. Here, the stopper 145 may be alternatively expressed as a "boss" or a "protrusion".

[0229] For example, the stopper 145 may be disposed on the upper surface of at least one of the first to fourth corner portions 142A to 142B of the housing 140. In other embodiments, the stopper 145 may be disposed on at least one of the side portions 141A to 141D or the corner portions 142A to 142D of the housing 140.

[0230] For example, the stopper 145 of the housing 140 can contact the inner surface of the upper plate of the cover member 300. In other embodiments, they may not contact each other.

[0231] The housing 140 can include at least one first coupling portion 143 provided on the upper portion, upper surface, or upper end of the housing 140 for coupling with the upper elastic member 150 (for example, the hole 152a of the first outer frame 152). In FIG. 26, the first coupling portion 143 of the housing 140 can be in a protrusion shape, but in other embodiments, the first coupling portion of the housing 140 may be in a groove or flat shape.

[0232] Further, the housing 140 can include at least one second coupling portion 147 provided on the lower portion, lower surface, or lower end of the housing 140 for coupling with the lower elastic member 160 (for example, the hole 162a of the second outer frame 162). In FIG. 28B, the second coupling portion 147 is in a protrusion shape, but in other embodiments, the second coupling portion of the housing 140 may be in a groove or flat shape.

[0233] To prevent the lower surface or bottom of the housing 140 from colliding with the base 210 described later, the housing 140 may be provided with at least one stopper (not shown) protruding from the lower portion, lower surface, or lower end.

[0234] The housing 140 can include a groove 148 or a guide groove corresponding to, facing, or overlapping with the protrusion 216 of the base 210. For example, the groove 148 may be provided on the lower portion, lower surface, or lower end of at least one of the first to fourth corner portions 142A to 142D of the housing 140.

[0235] The housing 140 can be coupled to the base 210. For example, the lower part, the lower surface, or the lower end of the housing 140 may be coupled to the base 210. For example, the lower part, the lower surface, or the lower end of the housing 140 may be coupled to the protrusion 216 of the base 210. For example, the groove 148 of the housing 140 and the protrusion 216 of the base 210 may be coupled by an adhesive member.

[0236] The housing 140 can include a mounting portion 16A for disposing, placing, or accommodating the position sensor 170 and the capacitor 195. For example, the mounting portion 16A may be provided on the first side portion 141A of the housing 140. For example, the mounting portion 16A may be located between the mounting portion 17A and the corner 142A of the housing 140.

[0237] For example, the mounting portion 16A is in the form of an opening or a through hole penetrating the first side portion 141A of the housing 140. However, in other embodiments, the mounting portion 16A may be in the form of a groove. For example, the mounting portion 16A can have a shape corresponding or matching the position sensor 190.

[0238] In the embodiment of FIG. 26, the mounting portion 16A accommodates both the position sensor 170 and the capacitor 195. However, in other embodiments, the housing 140 can also include separate mounting portions for accommodating each of the position sensor 170 and the capacitor 195.

[0239] The housing 140 can include a groove 25 for disposing, placing, or accommodating the circuit board 190. For example, the groove 25 may be provided on the outer surface of the first side portion 141A of the housing 140. For example, the groove 25 may be in a shape recessed from the outer surface of the first side portion 141A of the housing 140.

[0240] The housing 140 can include a structure for coupling to the circuit board 190 on the first side portion 141A. For example, the housing 140 can include at least one protrusion 8 protruding from the outer surface of the first side portion 141A. For example, the housing 140 includes two protrusions 8A, 8B, but in other embodiments, the number of protrusions may be three or more. The protrusion 8 can be coupled to at least one hole 9 (or groove) formed in the circuit board 190. The circuit board 190 includes two holes 9A, 9B, but in other embodiments, the number of holes may be three or more.

[0241] For example, the circuit board 190 may be attached or fixed to the first side portion 141A of the housing 140 by an adhesive or the like, and can include a structure for coupling to the housing 140. For example, the structure in which the housing 140 and the circuit board 190 are coupled to each other can be a hole or a groove on one side when the other is a protrusion.

[0242] The magnet 130 can generate an electromagnetic force by interacting with the coil 120, and can be a drive magnet that can move the bobbin 110 by such an electromagnetic force.

[0243] The magnet 130 may be disposed, coupled, or fixed to the housing 140.

[0244] The magnet 130 can include two magnet units 130A, 130B disposed on two side portions of the housing 140 located on opposite sides of each other across the optical axis.

[0245] The magnet 130 can include a first magnet unit 130A disposed on the first side portion 141A of the housing 140 and a second magnet 130B disposed on the second side portion 141B. For example, the magnet 130 may not be disposed on the third side portion 141C and the fourth side portion 141D of the housing 140.

[0246] For example, the first magnet unit 130A may be disposed on the first side surface or the first outer surface of the housing 140, and the second magnet unit 130B may be disposed on the second side surface or the second outer surface of the housing 140.

[0247] For example, the first magnet unit 130A may be disposed in the first placement portion 17A of the housing 140, and the second magnet unit 130B may be disposed in the second placement portion 17B of the housing 140.

[0248] In other embodiments, the placement portions 17A and 17B may not be formed on the side portions 141A and 141B of the housing 140, and the first and second magnet units 130A and 130B may be disposed on the outer or inner side surfaces of the first and second side portions 141A and 141B of the housing 140.

[0249] The first magnet unit 130A can be positioned close to one of the two corner portions 142A and 142D adjacent to the first side portion 141A of the housing 140. For example, the first magnet unit 130A can be positioned closer to the fourth corner portion 142D than the first corner portion 142A of the housing 140. This is to ensure a placement space for the position sensor 170 and the capacitor 195 on the first side portion 141A of the housing 140.

[0250] The second magnet unit 130B can be positioned close to one of the two corner portions 142B and 142C adjacent to the second side portion 141B of the housing 140. For example, the second magnet unit 130B can be positioned closer to the second corner portion 142B than the third corner portion 142C of the housing 140. This is to symmetrically arrange the second magnet unit 130B and the first magnet unit 130A with respect to each other based on the optical axis, to prevent unintentional tilting of the bobbin 110 during AF driving, and to ensure the reliability of the AF driving of the bobbin 110.

[0251] For example, the fourth corner portion 142D of the housing 140 near which the first magnet unit 130A is located and the second corner portion 142B of the housing 140 near which the second magnet unit 130B is located may face each other across the optical axis or may be located on opposite sides.

[0252] Each of the first and second magnet units 130A and 130B may have an overall polyhedral shape, for example, a rectangular parallelepiped shape. However, in other embodiments, they may have various shapes suitable for generating electromagnetic force due to interaction with the coil 120.

[0253] Each of the first and second magnet units 130A and 130B may be a two-pole magnet including two N poles and two S poles, or a four-pole magnet. For example, each of the first and second magnet units 130A and 130B may include a first magnet portion including an N pole and an S pole, a second magnet portion including an S pole and an N pole, and a partition wall disposed between the first magnet portion and the second magnet portion.

[0254] For example, each of the first and second magnet units 130A and 130B may be embodied by ferrite, alnico, rare earth magnets, etc.

[0255] For example, the first magnet portion and the second magnet portion may face each other in the optical axis direction across the partition wall or may be located on opposite sides. For example, the first magnet portion and the second magnet portion may be arranged such that opposite polarities face each other in the optical axis direction. For example, the N pole of the first magnet portion and the S pole of the second magnet portion may be arranged to face the coil 120. However, in other embodiments, the S pole of the first magnet portion and the N pole of the second magnet portion may be arranged to face the coil 120.

[0256] In other embodiments, the first magnet portion and the second magnet portion may face each other in a direction perpendicular to the optical axis across the partition wall or may be located on opposite sides.

[0257] For example, the first magnet part can include an N pole, an S pole, and a first boundary surface between the N pole and the S pole. At this time, the first boundary surface is a portion that is substantially non-magnetic and can include a section with almost no polarity, and can be a portion that naturally occurs to form a magnet composed of one N pole and one S pole.

[0258] For example, the second magnet part can include an N pole, an S pole, and a second boundary surface between the N pole and the S pole. At this time, the second boundary surface is a portion that is substantially non-magnetic and can include a section with almost no polarity, and can be a portion that naturally occurs to form a magnet composed of one N pole and one S pole.

[0259] The partition wall separates or isolates the first magnet part and the second magnet part, and can be a portion that is substantially non-magnetic and has almost no polarity. For example, the partition wall can be a non-magnetic substance, air, or the like. The partition wall can be expressed as a "Neutral Zone" or a "neutral region".

[0260] The partition wall is a portion artificially formed when magnetizing the first magnet part and the second magnet part, and the width of the partition wall can be larger than the widths of the first boundary surface and the second boundary surface respectively. Here, the width of the partition wall can be the length of the non-magnetic partition wall in the direction from the first magnet part to the second magnet part.

[0261] In the embodiment, the magnet 130 includes four magnets, but is not limited thereto. In other embodiments, the number of magnets 130 may be at least two or more, and the first surface of the magnet 130 may be formed as a plane, but is not limited thereto, and the first surface 13a of the magnet 130 can also include a curved surface, an inclined surface, or a tapered portion. For example, the first surface 13a of the magnet 130 can be the outer surface of the bobbin 110-1 and / or the surface facing the coil 120.

[0262] In other embodiments, each of the first and second magnet units 130A and 130B may be a single-pole magnetized magnet having two different polarities and an interface surface that is naturally formed between the different polarities. For example, each of the first and second magnet units 130A and 130B may be a single-pole magnetized magnet arranged such that the first surface facing the coil 120 is an N pole and the second surface opposite the first surface is an S pole, but is not limited thereto, and the N pole and the S pole may be opposite.

[0263] Referring to FIG. 32, a tapered surface or inclined surface 35 may be provided at one end of the first magnet unit 130A. For example, the tapered surface or inclined surface 35 may have a shape in which one of the corners at one end of the first magnet unit 130B is chamfered. For example, the tapered surface or inclined surface 35 may be formed at one end of the first magnet unit 130A adjacent to the position sensor 170. Further, the tapered surface or inclined surface 35 may be formed at the corner of one end of the first magnet unit 130A adjacent to the sensing magnet 180.

[0264] The reason for forming the tapered surface or inclined surface 35 on the first magnet unit 130A is to reduce the magnetic field interference between the sensing magnet 180 and the first magnet unit 130A. That is, by forming the tapered surface or inclined surface 35, the separation distance between the first magnet unit 130A and the sensing magnet 180 can be increased, thereby reducing the magnetic field interference between the sensing magnet 180 and the first magnet unit 130A.

[0265] By reducing the influence of the magnetic field of the sensing magnet 180 on the first magnet unit 130A, the embodiment can suppress the influence of the electromagnetic force caused by the interaction between the first coil unit 120A and the first magnet unit 130A due to the magnetic field of the sensing magnet 180, enabling accurate AF driving and improving the reliability of AF driving.

[0266] Further, by reducing the influence of the magnetic field of the first magnet unit 130A on the sensing magnet 180, the embodiment can reduce the influence on the output of the position sensor 170 caused by the magnetic field of the first magnet unit 130A, enabling accurate AF feedback driving and further improving the reliability of AF driving.

[0267] For example, the first magnet unit 130A can include a first side surface 13A facing the bobbin 110 (or the first coil unit 120A), a second side surface 13B located on the opposite side of the first side surface 13A, a third side surface 13C located between the first side surface 13A and the second side surface 13B and adjacent to the position sensor 170, and a fourth side surface 14D located on the opposite side of the third side surface 13C. Further, the first magnet unit 130A can further include an upper surface in contact with the upper ends or upper sides of the first to fourth side surfaces 13A to 13D, and a lower surface in contact with the lower ends or lower sides of the first to fourth side surfaces 13A to 13D.

[0268] For example, the third side surface 13C can include a first surface 13C1 in contact with the second side surface 13B and a second surface 13C2 located between the first side surface 13A and the first surface 13C1.

[0269] For example, the first surface 13A and the second surface 13B of the first magnet unit 130A may be parallel to each other. For example, the first surface 13C1 of the third side surface 13C and the fourth side surface 13D of the first magnet unit 130B may be parallel to each other. For example, the inner angle (θ) between the first surface 13C1 and the second surface 13C2 may be an obtuse angle. For example, the inner angle (θ) may be between 120° and 160°.

[0270] For example, the first magnet unit 130A can include a first region S1 including the second side surface 13B and a second region S2 including the first side surface 13A. The length of the second region S2 in the third direction (Y-axis direction) can decrease from the second side surface 13B toward the first side surface 13A.

[0271] For example, the length L1 of the first magnet unit 130A in the third direction (Y-axis direction) may be greater than the length L2 of the first magnet unit 130A in the first direction (Z-axis direction). In other embodiments, L1 and L2 may be the same.

[0272] Also, the length L1 of the first magnet unit 130A in the third direction (Y-axis direction) may be greater than the length W1 of the first magnet unit 130A in the second direction (X-axis direction).

[0273] For example, the length L3 of the first coil unit 120A in the third direction may be smaller than the length L1 of the first magnet unit 130A in the third direction (Y-axis direction). In other embodiments, L3 may be the same as L1.

[0274] For example, the length L4 of the first coil unit 120A in the first direction may be greater than the length L2 of the first magnet unit 130A in the first direction (Z-axis direction). In other embodiments, L4 may be smaller than or the same as L2.

[0275] The above description of the first magnet unit 130A and the description of the relationship between the first magnet unit and the first coil unit 120A may also be applied or analogously applied to the second magnet unit 130B and the second coil unit 120B.

[0276] For example, the second magnet unit 120B may be arranged symmetrically with the first magnet unit 120A. For example, the second magnet unit 120B can be rotationally symmetric with the first magnet unit 120A by 180° with respect to the optical axis. Also, the first coil unit 120A and the second coil unit 120B can be rotationally symmetric by 180° with respect to the optical axis.

[0277] For example, in the direction from the first corner portion 142A to the fourth corner portion 142D of the housing 140, the inclined surface 35 of the first magnet unit 130A can overlap with the capacitor 195 and the position sensor 170.

[0278] For example, the position sensor 170 may be disposed between the inclined surface 35 of the first magnet unit 130A and the capacitor 195. In other embodiments, the capacitor 195 may be disposed between the position sensor 170 and the inclined surface 35 of the first magnet unit 130A. This can reduce the influence of the magnetic field interference of the first magnet unit 130A on the position sensor 170, thereby preventing malfunction of the position sensor 170 due to magnetic field interference.

[0279] The circuit board 190 and the position sensor 170 can be disposed in the housing 140.

[0280] The circuit board 190 and the position sensor 170 can be disposed on the first side portion 141A (or the first side surface) of the housing 140 where the first magnet unit 130A is disposed. For example, the circuit board 190 can be disposed in the groove 25 of the housing 140, and the position sensor 170 can be disposed in the mounting portion 16A of the housing 140.

[0281] For example, the circuit board 190 may be disposed outside the first magnet 130A disposed on the first side portion 141A of the housing 140. Here, the outside of the first magnet 130A can be the side opposite to the center side of the housing 140 with respect to the first magnet 130A.

[0282] The circuit board 190 can include terminals 91, 92 (or pads) for providing a drive signal to the coil 120, and terminals 95 (B1 to B5) for being electrically connected to the outside.

[0283] For example, the terminals 91 and 92 of the circuit board 190 may be disposed on the first surface of the circuit board 190 to facilitate electrical connection with the upper elastic member 150 or the lower elastic member 160 and shorten the electrical connection path. For example, the first surface of the circuit board 190 may be the surface facing the first side portion 141A of the housing 140 or the bobbin 110.

[0284] Also, for example, the terminal 95 of the circuit board 190 may be disposed on the second surface of the circuit board 190 to facilitate electrical connection with the outside. The second surface of the circuit board 190 may be the surface located on the opposite side of the first surface of the circuit board 190. For example, the terminals 95 of the circuit board 190 may be arranged in a row at the lower part of the second surface of the circuit board 190.

[0285] In FIG. 33, for electrical connection with the outside, the circuit board 190 includes five terminals B1 to B5, but in other embodiments, the circuit board 190 may also include four terminals, or six or more terminals.

[0286] The circuit board 190 may include a circuit pattern or wiring for electrically connecting the position sensor 170 to the terminals 91, 92, and 95 of the circuit board 190.

[0287] Also, the circuit board 190 may include at least one hole 9 for coupling with the protrusion 8 of the housing 140.

[0288] Referring to FIGS. 2 and 33, the circuit board 190 can include a first portion 190A (or body) disposed in the housing 140 and a second portion 190B (or extension) coupled to the first portion 190B and extending to the outer surface of the base 210. The first portion 190A of the circuit board 190 can be located on one side of the first magnet unit 130A to avoid spatial interference with the first magnet unit 130A, and the second portion 190B can be located below the first magnet unit 130A. For example, the hole 9 may be formed in the first portion 190A of the circuit board 190. For example, the circuit board 190 may be a printed circuit board or an FPCB (Flexible Printed Circuit board).

[0289] The position sensor 170 may be coupled to the circuit board 190 by a conductive adhesive or solder, or may be mounted on the circuit board 190. For example, the position sensor 170 may be mounted, coupled or disposed on the first surface of the circuit board 190.

[0290] The position sensor 170 can sense the position or displacement of the bobbin 110 in the first direction. For example, the position sensor 170 can sense the intensity of the magnetic field of the sensing magnet 180 and output an output signal (e.g., output voltage) based on the sensed result.

[0291] For example, the position sensor 170 may be a driver IC including a Hall sensor.

[0292] For example, the position sensor 170 can include first and second terminals to which a power supply or a power signal is input. Also, the position sensor 170 can include third and fourth terminals for transmitting and receiving a clock signal and a data signal using data communication using a protocol, e.g., I2C communication. Data communication using a protocol, e.g., I2C communication, can be performed between the position sensor 170 and the control units 830, 780.

[0293] Each of the first to fourth terminals of the position sensor 170 can be electrically connected to any one of the corresponding first to fourth terminals (for example, B1 to B4) of the circuit board 190.

[0294] Also, for example, the position sensor 170 can include fifth and sixth terminals for supplying a drive signal, for example, a drive current, to the coil 120. For example, the fifth and sixth terminals of the position sensor 170 can be electrically connected to any one of the corresponding fifth and sixth terminals 91, 92 of the circuit board 190.

[0295] The capacitor 195 may be coupled to the circuit board 190 by a conductive adhesive or solder, or may be mounted on the circuit board 190. For example, the capacitor 195 may be mounted, coupled, or disposed on the first surface of the circuit board 190. For example, the capacitor 195 may be disposed on the mounting portion 16A of the housing 140.

[0296] The capacitor 195 can be in the form of a chip and can include a first terminal electrically connected to one end of the capacitor 195 and a second terminal electrically connected to the other end of the capacitor 195. The capacitor 195 may be alternatively expressed as a "capacitive element" or a "condensor".

[0297] In other embodiments, the capacitor 195 may be integrally formed with the circuit board 190. For example, the circuit board 190 can also include a capacitor including a first conductive layer, a second conductive layer, and an insulating layer (for example, a dielectric layer) disposed between the first conductive layer and the second conductive layer.

[0298] The capacitor 195 can be electrically connected in parallel to the terminals (for example, B1, B2) of the circuit board 190 for providing power (or a drive signal) to the position sensor 170 from the outside.

[0299] Alternatively, the capacitor 195 may be electrically connected in parallel to the first and second terminals of the position sensor 170 that are electrically connected to the terminals (for example, B1, B2) of the circuit board 190.

[0300] For example, one end of the capacitor 195 (or the first terminal of the capacitor 195) may be electrically connected to any one of the terminals (for example, B1, B2) of the circuit board 190, and the other end of the capacitor 195 (or the second terminal of the capacitor 195) may be electrically connected to the remaining one of the terminals (for example, B1, B2) of the circuit board 190.

[0301] The capacitor 195 can serve as a smoothing circuit that removes the ripple component included in the power supply or drive signal (for example, current) supplied to the position sensor 170 from the outside by being electrically connected in parallel to the terminals (for example, B1, B2) of the circuit board 190. As a result, a stable and constant power supply or drive signal (or current) can be provided to the position sensor 170. Further, the capacitor 195 can also protect the position sensor 170 from high-frequency component noise or ESD flowing in from the outside.

[0302] Also, the capacitor 195 can prevent an overcurrent caused by high-frequency component noise or ESD flowing in from the outside from being applied to the position sensor 170, and can prevent a phenomenon in which the calibration value for the displacement of the bobbin obtained based on the output signal of the position sensor 170 is reset due to the overcurrent.

[0303] In other embodiments, the position sensor 170 may be implemented as a Hall sensor alone. In an embodiment where the position sensor 170 is implemented as a Hall sensor alone, the position sensor 170 may include two input terminals for providing a power supply or a drive signal and two output terminals for outputting an output signal. At this time, the circuit board 190 may include first and second terminals (e.g., B1, B2) electrically connected to the two input terminals of the position sensor 170 and third and fourth terminals (e.g., B3, B4) electrically connected to the two output terminals of the position sensor 170. Then, a power supply or a drive signal for driving the position sensor 170 may be supplied from an external device (e.g., the control unit 830) to the first and second terminals (e.g., B2, B2) of the circuit board 190, and the output signal of the position sensor 170 may be output to the third and fourth terminals (e.g., B3, B4) of the circuit board 190.

[0304] In addition, the circuit board 190 may include a fifth terminal (e.g., B5) and a sixth terminal (not shown) for supplying a power supply or a drive signal to the coil 120 from an external device (e.g., the control unit 830). The capacitor 195 may be electrically connected in parallel to the two input terminals of the position sensor 170 or the first and second terminals (e.g., B1, B2) of the circuit board 190.

[0305] The elastic member may elastically support the bobbin 110 with respect to the housing 140. For example, the elastic member may include at least one of the upper elastic member 150 and the lower elastic member 160.

[0306] The upper elastic member 150 and the lower elastic member 160 may be implemented as leaf springs, but in other embodiments, they may be implemented as coil springs, suspension wires, or the like.

[0307] For example, the upper elastic member 150 can be coupled to the upper part, upper surface, or upper end of the bobbin 110 and the upper part, upper surface, or upper end of the housing 140. The lower elastic member 160 can be coupled to the lower part, lower surface, or lower end of the bobbin 110 and the lower part, lower surface, or lower end of the housing 140.

[0308] At least one of the upper elastic member 150 and the lower elastic member 160 can include a plurality of elastic springs or elastic units that are divided or separated into two or more.

[0309] For example, the lower elastic member 160 can include a first lower spring 160A, a second lower spring 160B, and a third lower spring 160C that are spaced apart from each other.

[0310] In FIG. 29, an example is illustrated in which the upper elastic member 150 includes one upper spring that is not separated from each other. However, in other embodiments, the upper elastic member can include a plurality of upper springs.

[0311] The upper elastic member 150 can include a first inner frame 151 coupled to the upper part, upper surface, or upper end of the bobbin 110, a first outer frame 152 coupled to the upper part, upper surface, or upper end of the housing 140, and a first frame connection part 153 connecting the first inner frame 151 and the first outer frame 152. Here, the "inner frame" may be expressed as the "inner part", and the "outer frame" may be alternatively expressed as the "outer part".

[0312] For example, the upper elastic member 150 can include four first frame connection parts 153. In other embodiments, the upper elastic member 150 can also include one or two or more first frame connection parts. For example, the first frame connection parts of the upper elastic member 150 can be positioned corresponding to the first to fourth corner parts 142A to 142D of the housing 140.

[0313] The first inner frame 151 of the upper elastic member 150 may be provided with a first coupling portion that is coupled to the first coupling portion of the bobbin 110, and the first coupling portion of the first inner frame 151 may be a flat surface or a through hole. The first outer frame 152 may be provided with a second coupling portion 152A that is coupled to the first coupling portion 143 of the housing 140. The second coupling portion 152A may be a through hole, but in other embodiments, it may be a flat surface or a groove.

[0314] The lower elastic member 160 can include a second inner frame 161 that is coupled to the lower part, lower surface, or lower end of the bobbin 110, a second outer frame 162 that is coupled to the lower part, lower surface, or lower end of the housing 140, and a second frame connecting portion 163 that connects the second inner frame 161 and the second outer frame 162.

[0315] Each of the first frame connecting portion 153 and the second frame connecting portion 163 is formed so as to be bent at least once or curved (or in a curve) to form a pattern of a certain shape. Through the change in position and minute deformation of the first and second frame connecting portions 153, 163, the bobbin 110 can be elastically (or resiliently) supported in the first direction for upward and / or downward movement.

[0316] The second inner frame 161 of the lower elastic member 160 may be provided with a first coupling portion that is coupled to the first coupling portion of the bobbin 110, and the first coupling portion of the second inner frame 161 may be a flat surface or a through hole. The second outer frame 162 may be provided with a second coupling portion 162A that is coupled to the second coupling portion 147 of the housing 140. The second coupling portion 162A may be a through hole, but in other embodiments, it may be a flat surface or a groove.

[0317] Each of the first to third lower springs 160A to 160C can include a second inner frame 162, a second outer frame 162, and a second frame connecting portion 163.

[0318] Referring to FIG. 30, the first lower spring 160A can include a bonding portion 51 for coupling one end of the first coil unit 120A by soldering or a conductive adhesive member. For example, the second inner frame 161 of the first lower spring 160A can include the first bonding portion 51.

[0319] The second lower spring 160B can include a bonding portion 52 for coupling one end of the second coil unit 120B by soldering or a conductive adhesive member. For example, the second inner frame 161 of the second lower spring 160B can include the second bonding portion 52.

[0320] The third lower spring 160C can include a third bonding portion 53A for coupling the other end of the first coil unit 120A by soldering or a conductive adhesive member, and a fourth bonding portion 53B for coupling the other end of the second coil unit 120B. For example, the second inner frame 161 of the third lower spring 160C can include the third and fourth bonding portions 53A, 53B. For example, the first to fourth bonding portions 51, 52, 53A, 53B may be provided with insertion grooves for guiding the coil units 120A, 120B.

[0321] For example, by the lower elastic member 160, the first coil unit 120A and the second coil unit 120C may be connected in series with each other. For example, by the first to third coil units 160A, 160C, the first coil unit 120A and the second coil unit 120C may be connected in series with each other. Alternatively, for example, the third lower spring 160C can connect the first coil unit 120A and the second coil unit 120C in series.

[0322] The lower elastic member 160 can be coupled to the circuit board 190 by a conductive adhesive or solder. For example, the lower elastic member 160 can be electrically connected to the circuit board 190.

[0323] For example, by means of a conductive adhesive or solder, one end of the first lower spring 160A (e.g., the second outer frame 162) can be electrically connected to the terminal 91 of the circuit board 190, and by means of a conductive adhesive or solder, one end of the second lower spring 160B (the second outer frame 162) can be electrically connected to the terminal 92 of the circuit board 190.

[0324] The coil 120 can be electrically connected to the terminals 91 and 92 of the circuit board 190 via the first to third lower springs 160A to 160C. A drive signal can be provided to the coil 120 via the terminals 91 and 92 of the circuit board 190 and the first to third lower springs 160A to 160C.

[0325] In other embodiments, the upper elastic member 150 can include the first to third upper springs, and the description of the first to third lower springs 160A to 160C described in FIG. 30 may be applied or analogously applied to the first to third upper springs.

[0326] In other embodiments, either one of the upper elastic member 150 and the lower elastic member 160 can include the first and second elastic members, and the other of the upper elastic member 150 and the lower elastic member 160 can include the third elastic member. One end of the first coil unit 120A can be connected to the first elastic member by means of a conductive adhesive or solder, the other end of the first coil unit 120A can be connected to the third elastic member by means of a conductive adhesive or solder, one end of the second coil unit 120B can be connected to the second elastic member by means of a conductive adhesive or solder, and the other end of the second coil unit 120B can be connected to the third elastic member by means of a conductive adhesive or solder. And the first elastic member may be electrically connected to the terminal 91 of the circuit board 190 by means of a conductive adhesive or solder, and the second elastic member may be electrically connected to the terminal 92 of the circuit board 190 by means of a conductive adhesive or solder.

[0327] In still another embodiment, the first coil unit 120A and the second coil unit 20B can be a single integrated coil body directly connected to each other. Either the upper elastic member 150 or the lower elastic member 160 can include the first and second elastic members. One end of the coil 120 is connected to the first elastic member by a conductive adhesive or solder, and the other end of the coil 120 is connected to the second elastic member by a conductive adhesive or solder. The first elastic member is connected to the terminal 91 of the circuit board 190 by a conductive adhesive or solder, and the second elastic member may be connected to the terminal 92 of the circuit board 190 by a conductive adhesive or solder.

[0328] To absorb and buffer the vibration of the bobbin 110, the lens driving device 100 may further include a damper (not shown) disposed between the upper elastic member 150 and the housing 140, or between the upper elastic member 150 and the bobbin 110.

[0329] For example, the lens driving device 100 may include a damper (not shown) disposed between the first frame connecting portion 153 and the bobbin 110, or between the first frame connecting portion 153 and the housing 140. At this time, the damper (not shown) can contact, couple, or adhere to the first frame connecting portion 153 and the bobbin 110, or contact, couple, or adhere to the first frame connecting portion 153 and the housing 140.

[0330] Also, for example, the lens driving device 100 may also include a damper (not shown) disposed between each of the second frame connecting portions 163 of the first to third lower springs 160A to 160C and the bobbin 110 (and / or the housing 140).

[0331] Also, for example, the lens driving device 100 may include a damper (not shown) disposed between the inner surface of the housing 140 and the outer surface of the bobbin 110.

[0332] Referring to FIG. 33, the base 210 can be disposed under the bobbin 110 or the housing 140. For example, the base 210 may be disposed under the lower elastic member 160.

[0333] The base 210 can include an opening 301 corresponding to the opening 101 of the bobbin 110 and / or the opening 201 of the housing 140. The opening 301 may be a through hole or hollow that penetrates the base 210 in the optical axis direction. The base 210 may have a shape that matches or corresponds to the cover member 300 or the housing 140, for example, a rectangular shape.

[0334] For example, the base 210 may be coupled or fixed to the cover member 300.

[0335] When the cover member 300 is adhesively fixed, the base 210 can be provided with a step portion 211 at the lower end of the side surface where the adhesive can be applied. At this time, the step portion 211 can guide the cover member 300 coupled to the upper side and can face the lower end of the side plate 302 of the cover member 300. An adhesive member and / or a seal member may be disposed or applied between the lower end of the side plate 302 of the cover member 300 and the step portion 211 of the base 210.

[0336] The base 210 can include a protruding portion 216 protruding from the upper surface. The protruding portion 216 may be alternatively expressed as a "column portion". The protruding portion 216 can be disposed at the corner of the base 210. For example, the protruding portion 216 can correspond to, face, or overlap with the groove 148 of the housing 140 in the optical axis direction. For example, the protruding portion 216 may have a polygonal column shape protruding from the upper surface of the base 210 so as to be perpendicular to the upper surface of the base 210. For example, when viewed in the first direction or from above, the protruding portion 216 may have a triangular, rectangular, or circular shape.

[0337] The protruding portion 216 can be inserted into the groove 148 of the housing 140 and may be fastened or coupled to the groove 148 of the housing 140 by an adhesive member (not shown) such as epoxy or silicon.

[0338] In order to prevent the lower surface or the lower end of the bobbin 210 from directly colliding with the upper surface of the base 210 when an external impact occurs, the base 210 can include a stopper (not shown) protruding from the upper surface. The stopper of the base 210 may be arranged corresponding to the protruding portion 216 of the base 210, but is not limited thereto.

[0339] In order to avoid spatial interference between the bobbin 110 and the lower elastic member 160, the stopper of the base 210 can be positioned higher than the second frame connecting portion 163 of the lower springs 160A, 160B coupled to the base 210.

[0340] The base 210 can include a mounting groove 215 for the lower end (or the second portion 190B) of the circuit board 190 to be arranged or placed on a side surface or an outer surface corresponding to the first side portion (e.g., 141A) of the housing 140 where the circuit board 190 is arranged.

[0341] For example, the terminal 95 of the circuit board 190 may be arranged on the outer surface of the base 210 corresponding to the first side portion 141A of the housing 140. For example, the terminal 95 of the circuit board 190 may be located within the mounting groove 215 of the base 210.

[0342] The cover member 300 houses the housing 140 and the AF driving unit within the accommodation space formed together with the base 210.

[0343] The cover member 300 may be in a box shape with an open lower part and including an upper plate 301 and side plates 302. The lower ends of the side plates 302 of the cover member 300 can be coupled to the base 210. The shape of the upper plate 301 of the cover member 300 may be a polygon, for example, a quadrilateral or an octagon, etc., and the upper plate 301 can include an opening 303 for exposing a lens (not shown) to external light.

[0344] The material of the cover member 300 may be a non-magnetic material such as SUS or plastic in order to prevent the phenomenon of sticking to the magnet 130. However, in other embodiments, the cover member 300 may be formed of a magnetic material and can also function as a yoke.

[0345] FIG. 35 is a plan view of the coil 120, the magnet 130, the position sensor 170, the sensing magnet 180, the balancing magnet 185, and the capacitor 195.

[0346] Referring to FIG. 35, at the initial position of the bobbin 110, in a direction perpendicular to the optical axis, passing through the optical axis, from the first side portion 141A to the second side portion 141B of the housing 140 or the second direction (X-axis direction), or in a direction parallel to the virtual plane (or straight line) 401, the position sensor 170 can overlap with the sensing magnet 180.

[0347] Based on the virtual plane (or virtual straight line) 401, the first coil unit 120A and the second coil unit 20B can be arranged to be biased in opposite directions to each other. For example, the virtual plane 401 (or straight line) can be a plane (or straight line) perpendicular to the optical axis OA, passing through the optical axis, and parallel to the direction from the first side portion 141A to the second side portion 141B of the housing 140.

[0348] Or, for example, the virtual plane 401 or the virtual straight line can also pass through the center 601 of the bobbin.

[0349] For example, based on the virtual plane (or virtual straight line) 401, the hollow 12A of the first coil unit 120A and the hollow 12A of the second coil unit 20B may be arranged to be biased in opposite directions to each other.

[0350] The first coil unit 120A can be arranged adjacent to one of two corners 142B and 142D of the housing 140 located on opposite sides with respect to the optical axis, and the second coil unit 120B can be arranged adjacent to the other one 142B of the two corners 142B and 142D of the housing 140 located on opposite sides with respect to the optical axis.

[0351] At least a part of the first magnet unit 130A can overlap at least a part of the second magnet unit 120B in a direction perpendicular to the optical axis, passing through the optical axis, from the first side portion 141A to the second side portion 141B of the housing 140, or in a direction parallel to the virtual plane (or straight line) 401.

[0352] In other embodiments, the first magnet unit 130A may not overlap with the second magnet unit 130B in a direction perpendicular to the optical axis, passing through the optical axis, from the first side portion 141A to the second side portion 141B of the housing 140, or in a direction parallel to the virtual plane (or straight line) 401.

[0353] At least a part of the first coil unit 120A can overlap at least a part of the second coil unit 120B in a direction perpendicular to the optical axis, passing through the optical axis, from the first side portion 141A to the second side portion 141B of the housing 140, or in a direction parallel to the virtual plane (or straight line) 401.

[0354] At least a part of the position sensor 170 can overlap at least a part of the second coil unit 120B in a direction perpendicular to the optical axis, passing through the optical axis, from the first side portion 141A to the second side portion 141B of the housing 140, or in a direction parallel to the virtual plane (or straight line) 401. In other embodiments, the position sensor 170 may not overlap with the second coil unit 120B in a direction perpendicular to the optical axis, passing through the optical axis, from the first side portion 141A to the second side portion 141B of the housing 140, or in a direction parallel to the virtual plane (or straight line) 401.

[0355] At least a part of the position sensor 170 can overlap at least a part of the second magnet unit 130B in a direction perpendicular to the optical axis, passing through the optical axis, from the first side portion 141A to the second side portion 141B of the housing 140, or in a direction parallel to the virtual plane (or straight line) 401.

[0356] At least a part of the sensing magnet 180 can overlap at least a part of the second magnet unit 120B in a direction perpendicular to the optical axis, passing through the optical axis, from the first side portion 141A to the second side portion 141B of the housing 140, or in a direction parallel to the virtual plane (or straight line) 401.

[0357] Also, at least a part of the sensing magnet 180 can overlap at least a part of the second coil unit 120B in a direction perpendicular to the optical axis, passing through the optical axis, from the first side portion 141A to the second side portion 141B of the housing 140, or in a direction parallel to the virtual plane (or straight line) 401. In other embodiments, at least a part of the sensing magnet 180 does not have to overlap the second coil unit 120B in a direction perpendicular to the optical axis, passing through the optical axis, from the first side portion 141A to the second side portion 141B of the housing 140, or in a direction parallel to the virtual plane (or straight line) 401.

[0358] Based on the virtual plane (or virtual straight line) 401, the first coil unit 120A may be left - right asymmetric. Based on the virtual plane (or virtual straight line) 401, the second coil unit 120B may be left - right asymmetric. Based on the virtual plane (or virtual straight line) 401, the first magnet unit 130A may be left - right asymmetric. Based on the virtual plane (or virtual straight line) 401, the second magnet unit 130B may be left - right asymmetric. In other embodiments, based on the virtual plane (or virtual straight line) 401, each of the first coil unit 120A and the second coil unit 120B may be left - right symmetric.

[0359] The first magnet unit 130A and the second magnet unit 130B may be arranged asymmetrically with respect to a virtual straight line (or a virtual straight line) 402. The first coil unit 120A and the second coil unit 120B may be arranged asymmetrically with respect to a virtual straight line (or a virtual straight line) 402. In other embodiments, the first magnet unit 130A and the second magnet unit 130B may be arranged symmetrically with respect to a virtual straight line (or a virtual straight line) 402. In other embodiments, the first coil unit 120A and the second coil unit 120B may be arranged symmetrically with respect to a virtual straight line (or a virtual straight line) 402.

[0360] For example, 401 may be perpendicular to the optical axis, pass through the optical axis, and be parallel to the second direction.

[0361] For example, the virtual plane (or virtual straight line) 402 may be perpendicular to the optical axis, pass through the optical axis, and be parallel to the direction from the third side portion 141C to the fourth side portion 141D of the housing 140. For example, 402 may be perpendicular to the optical axis, pass through the optical axis, and be parallel to the third direction. For example, 402 may pass through the hollow center 601 of the bobbin 110.

[0362] The first coil unit 120A includes a first portion 48A (or a first region) that overlaps the second coil unit 120B in a direction perpendicular to the optical axis, passing through the optical axis, from the first side portion 141A to the second side portion 141B of the housing 140, or in a direction parallel to the virtual plane (or straight line) 401, and a second portion 48B (or a second region) that does not overlap the second coil unit 120B.

[0363] The first length of the first portion 48A of the first coil unit 120A may be different from the second length of the second portion 48B of the first coil unit 120A. For example, the first length may be smaller than the second length.

[0364] For example, the first length may be the length of the first portion 48A in the third direction (Y-axis direction), the direction from the third side portion to the fourth side portion of the housing 140, the direction perpendicular to the direction from the first side portion 141A to the second side portion 141B, the direction parallel to the first side portion 141A of the housing 140, or the direction parallel to the virtual plane 402.

[0365] For example, the second length may be the length of the second portion 48B in the third direction (Y-axis direction), the direction from the third side portion 141C to the fourth side portion 141D of the housing 140, the direction perpendicular to the direction from the first side portion 141A to the second side portion 141B, the direction parallel to the first side portion 141A of the housing 140, or the direction parallel to the virtual plane 402.

[0366] The second length may be greater than three times the first length and less than five times the first length. If the second length is less than three times the first length, the overlapping region between the first magnet unit 130A and the second magnet unit 130B will increase, and the placement spaces for the position sensor 170 and the capacitor 195 will be insufficient within the range of the designed size of the already set lens driving device.

[0367] Also, if the second length exceeds five times the first length, the overlapping region between the first magnet unit 130A and the second magnet unit 130B may decrease, which may reduce the sizes of the respective magnet units 130A and 130B and may result in a decrease in the driving force.

[0368] In other embodiments, the second length may be greater than 1.5 times the first length and less than five times the first length. In still other embodiments, the second length may be greater than one times the first length and less than seven times the first length. In other embodiments, the first length and the second length may be the same.

[0369] The second coil unit 120B is perpendicular to the optical axis and includes a first portion 49A (or first region) that overlaps the first coil unit 120A in the direction from the first side portion 141A to the second side portion 141B of the housing 140, or in the second direction (X-axis direction), and a second portion 49B (or second region) that does not overlap the first coil unit 120A.

[0370] The descriptions of the first and second portions 48A, 48B of the first coil unit 120A may be applied or analogously applied to the first and second portions 49A, 49B of the second coil unit 120B.

[0371] FIG. 36 shows a conceptual diagram of a triple camera device according to a second embodiment of the present invention.

[0372] The camera device of FIG. 36 may include three actuators 10, 20, 30. For example, the camera device of FIG. 36 may include a first actuator 10, a second actuator 20, and a third actuator 30 disposed between the first actuator 10 and the second actuator 20. At this time, the third actuator 30 may include a lens driving device 100 according to the embodiment.

[0373] Each of the three actuators 10, 20, 30 may include a driving magnet for AF or OIS driving. In a triple camera device, in order to achieve accurate AF driving and OIS driving, a design that minimizes magnetic field interference between the driving magnets included in the actuators 10, 20, 30 is required.

[0374] For example, the first actuator 10 includes three driving magnets 31 to 33, and no driving magnet is disposed at a portion adjacent to the third actuator 30.

[0375] The second actuator 20 can include an OIS actuator 20A including OIS magnet units 41A, 42A, 42B for performing OIS operation, and a zoom actuator 20B including drive magnet units 61A, 61B for performing a zoom function. The OIS actuator 20A can further include a separate magnet unit 23 and a yoke 24 for fixing the OIS moving part.

[0376] The drive magnets 31 to 33 of the first actuator 10 and the magnets 41A, 42A, 42B of the second actuator 20 can be arranged as shown in FIG. 36.

[0377] In order to arrange the magnets 31 to 33, 42A, 41B, 42B arranged in the first actuator 10 and the second actuator 20 so as to minimize magnetic field interference, in the embodiment, the magnets 130A, 130B, 180, 185 can be arranged as shown in FIG. 36. That is, in the lens driving device 100, drive magnet units are not arranged on the third and fourth side portions 141C, 141D of the housing 140, and by arranging the position sensor 170 and the first magnet unit 130A on the first side portion 141A of the housing 140, the magnetic field interference between the sensing magnet 180 and the balancing magnet 185 of the third actuator 30 and the magnets 41A, 42A, 42B of the second actuator 20 can be reduced. Thereby, the embodiment can prevent malfunction of the AF drive due to magnetic field interference and improve the reliability of the AF drive.

[0378] The magnetic field interference between the magnets of adjacent actuators can be greatly affected by the separation distance between the magnets of adjacent actuators.

[0379] The separation distance D1 between the drive magnet 32 of the actuator 10 and the magnet 130B of the actuator 30 may be 70% or more and 200% or less of the length L1 of the magnet 130B. When D1 is less than 70% of L1, the influence of magnetic field interference between the drive magnet 32 and the magnet 130B is large, so the reliability of the AF operation and OIS operation of the actuator 10 may deteriorate, and the reliability of the AF operation of the actuator 30 may deteriorate. When D1 exceeds 200% of L1, although the influence of magnetic field interference is slight, the size of the camera module may increase excessively.

[0380] In other embodiments, in order to reduce the influence of magnetic field interference and prevent the size from increasing excessively, D1 may be 80% or more and 150% or less of L1. Alternatively, in other embodiments, D1 may be 90% or more and 120% or less of L1. Alternatively, for example, in other embodiments, D1 may be 70% or more and 100% or less of the length L1 of the magnet 130B.

[0381] The separation distance D2 between the magnet 130A of the actuator 30 and the yoke 24 (or magnet 23) of the actuator 20 may be 30% or more and 100% or less of the length L1 of the magnet 130A. When D2 is less than 30% of L1, the influence of magnetic field interference between the magnet 130A and the yoke 24 (or magnet 23) is large, so the reliability of the OIS operation of the actuator 20 may deteriorate, and the reliability of the AF operation of the actuator 30 may deteriorate. When D3 exceeds 100% of L1, although the influence of magnetic field interference is slight, the size of the camera module may increase excessively.

[0382] In other embodiments, in order to reduce the influence of magnetic field interference and prevent the size from increasing excessively, D2 may be 50% or more and 80% or less of L1. Alternatively, in other embodiments, D2 may be 40% or more and 60% or less of L1. Alternatively, for example, in other embodiments, D2 may be 30% or more and 50% or less of the length L1 of the magnet 130A.

[0383] Also, if the position sensor 170 is disposed on a side portion of the second actuator 30 adjacent to the magnet 23 of the third actuator 30 (e.g., the fourth side portion 141D of the housing 140), since the space between the circuit board 190 and the second actuator 20 is too narrow, it may not be easy to perform a soldering process on the terminal 95 of the circuit board 190. On the contrary, in the embodiment, since the circuit board 190 is disposed on the first side portion 141A of the housing 140, it may be easy to perform a soldering process on the terminal of the circuit board 190 in FIG. 36.

[0384] When compared with a comparative example including a coil wound around the outer peripheral surface of the bobbin 110 with respect to the optical axis, arranging the two coil units 120A and 120B on the two side portions of the bobbin 110 for AF driving occupies less space, so it is suitable for the design of a large-diameter lens driving device. Therefore, since the embodiment implements AF driving using two coil units, a large-diameter lens driving device can be implemented.

[0385] On the other hand, the lens driving device according to the above-described embodiment can be used in various fields, for example, a camera module or an optical device.

[0386] For example, the lens driving device 100 according to the embodiment forms an image of an object in space using optical characteristics such as reflection, refraction, absorption, interference, and diffraction, aims to increase the visual power of the eye, aims to record and reproduce an image by a lens, or aims at optical measurement, image propagation, or transmission, and may be included in an optical instrument. For example, the optical instrument according to the embodiment can include a smartphone and a portable terminal equipped with a camera.

[0387] FIG. 37 shows an exploded perspective view of a camera device 200 according to a second embodiment of the present invention.

[0388] Referring to FIG. 37, the camera device 200 can include a lens or a lens barrel 400, a lens driving device 100, an adhesive member 612, a filter 610, a first holder 600, a second holder 800, an image sensor 810, a motion sensor 820, a control unit 830, and a connector 840.

[0389] The lens module 400 may be mounted or coupled to the bobbin 110 of the lens driving device 100. The lens module 400 can include at least one of a lens and a lens barrel.

[0390] The first holder 600 can be disposed under the base 210 of the lens driving device 100. The filter 610 is mounted on the first holder 600, and the first holder 600 can include a protrusion 500 on which the filter 610 is placed.

[0391] The adhesive member 612 can couple or attach the base 210 of the lens driving device 100 to the first holder 600. In addition to the above-described adhesive role, the adhesive member 612 can also serve to prevent foreign matter from flowing into the lens driving device 100.

[0392] For example, the adhesive member 612 may be epoxy, a thermosetting adhesive, an ultraviolet curable adhesive, or the like.

[0393] The filter 610 can serve to block light in a specific frequency band in the light passing through the lens barrel 400 from entering the image sensor 810. The filter 610 may be an infrared cut-off filter, but is not limited thereto. At this time, the filter 610 can be disposed parallel to the x-y plane.

[0394] An opening may be formed at a portion of the first holder 600 where the filter 610 is mounted so that the light passing through the filter 610 can enter the image sensor 810.

[0395] The second holder 800 is disposed below the first holder 600, and an image sensor 810 may be mounted on the second holder 600. The image sensor 810 is a site where the light that has passed through the filter 610 is incident and an image included in the light is formed.

[0396] The second holder 800 may be provided with various circuits, elements, a control unit, etc. in order to convert the image formed on the image sensor 810 into an electrical signal and transmit it to an external device.

[0397] The second holder 800 may be embodied as a circuit board on which an image sensor is mounted, a circuit pattern is formed, and various elements are coupled.

[0398] The image sensor 810 can receive the image included in the light incident through the lens driving device 100 and convert the received image into an electrical signal.

[0399] The filter 610 and the image sensor 810 may be spaced apart from each other so as to face each other in the first direction.

[0400] The motion sensor 820 is mounted on the second holder 800 and may be electrically connected to the control unit 830 through a circuit pattern provided on the second holder 800.

[0401] The motion sensor 820 outputs rotational angular velocity information due to the movement of the camera device 200. The motion sensor 820 may be embodied as a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0402] The control unit 830 is mounted on the second holder 800. The second holder 800 may be electrically connected to the lens driving device 100. For example, the second holder 800 may be electrically connected to the circuit board 190 of the lens driving device 100.

[0403] For example, a drive signal may be provided to the position sensor 170 via the second holder 800, and the output signal of the position sensor 170 may be transmitted to the second holder 800. For example, the output signal of the position sensor 170 may be received by the control unit 830.

[0404] The connector 840 may be electrically connected to the second holder 800 and include a port for electrically connecting to an external device.

[0405] FIG. 38 shows a perspective view of the portable terminal 200A according to the second embodiment of the present invention, and FIG. 39 shows a configuration diagram of the portable terminal 200A shown in FIG. 38.

[0406] Referring to FIGS. 38 and 39, the portable terminal 200A (hereinafter referred to as the "terminal") may include a body 850, a wireless communication unit 710, an A / V input unit 720, a sensing unit 740, an input / output unit 750, a memory unit 760, an interface unit 770, a control unit 780, and a power supply unit 790.

[0407] The body 850 shown in FIG. 38 is in a bar shape, but is not limited thereto, and may have various structures such as a slide type, a folder type, a swing type, a swivel type, etc., in which two or more sub-bodies are coupled to be relatively movable.

[0408] The body 850 may include a case (such as a casing, a housing, a cover, etc.) that forms an appearance. For example, the body 850 may be divided into a front case 851 and a rear case 852. Various electronic components of the terminal may be built into the space formed between the front case 851 and the rear case 852.

[0409] The wireless communication unit 710 may be configured to include one or more modules that enable wireless communication between the terminal 200A and a wireless communication system or between the terminal 200A and a network where the terminal 200A is located. For example, the wireless communication unit 710 may be configured to include a broadcast reception module 711, a mobile communication module 712, a wireless Internet module 713, a short-range communication module 714, and a location information module 715.

[0410] The A / V (Audio / Video) input unit 720 is for input of an audio signal or a video signal and may include a camera 721, a microphone 722, and the like. The camera 721 may include the camera device 200 according to an embodiment.

[0411] The sensing unit 740 senses the current state of the terminal 200A, such as the open / closed state of the terminal 200A, the position of the terminal 200A, the presence or absence of user contact, the orientation of the terminal 200A, and the acceleration / deceleration of the terminal 200A, and can generate a sensing signal for controlling the operation of the terminal 200A. For example, when the terminal 200A is in the form of a slide phone, it is possible to sense the presence or absence of opening and closing of the slide phone. Also, it is responsible for sensing functions related to the presence or absence of power supply from the power supply unit 790, the presence or absence of connection with an external device in the interface unit 770, and the like.

[0412] The input / output unit 750 is for generating input or output related to vision, hearing, touch, or the like. The input / output unit 750 can generate input data for controlling the operation of the terminal 200A and can also display information processed by the terminal 200A.

[0413] The input / output unit 750 may include a keypad unit 730, a display module 751, an acoustic output module 752, and a touch screen panel 753. The keypad unit 730 can generate input data by input from the keypad.

[0414] The display module 751 can include a plurality of pixels whose colors change according to an electrical signal. For example, the display module 751 can include at least one of a liquid crystal display, a thin film transistor - liquid crystal display, an organic light - emitting diode, a flexible display, and a 3D display.

[0415] The acoustic output module 752 can output audio data received from the wireless communication unit 710 in a call signal reception, a call mode, a recording mode, a voice recognition mode, or a broadcast reception mode, or can output audio data stored in the memory unit 760.

[0416] The touch screen panel 753 can convert a change in capacitance generated due to a user's touch on a specific area of the touch screen into an electrical input signal.

[0417] The memory unit 760 may store a program for the processing and control of the control unit 780, and can temporarily store input / output data (e.g., phone book, messages, audio, still images, photos, videos, etc.). For example, the memory unit 760 can store an image captured by the camera 721, e.g., a photo or a video.

[0418] The interface unit 770 serves as a connection path to an external device connected to the terminal device 200A. The interface unit 770 receives data transmission from an external device, receives power supply, and transmits it to each component inside the terminal device 200A, or enables the internal data of the terminal device 200A to be transmitted to the external device. For example, the interface unit 770 can include a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device equipped with an identification module, an audio I / O (Input / Output) port, a video I / O (Input / Output) port, and a headphone port, etc.

[0419] The control unit 780 can control the overall operation of the terminal device 200A. For example, the control unit 780 can perform related control and processing for voice calls, data communication, video calls, etc.

[0420] The control unit 780 can be provided with a multimedia module 781 for multimedia playback. The multimedia module 781 may be implemented within the control unit 180, or may be implemented separately from the control unit 780.

[0421] The control unit 780 can perform pattern recognition processing that can recognize handwriting input or drawing input performed on the touch screen as characters and images, respectively.

[0422] The power supply unit 790 can receive an external power supply or an internal power supply under the control of the control unit 780, and supply the power necessary for the operation of each component.

[0423] Although the first and second embodiments have been described separately above, some configurations of the first embodiment and some configurations of the second embodiment may be used in combination. That is, some configurations of the first embodiment may be replaced with corresponding configurations of the second embodiment. Also, some configurations of the second embodiment may be replaced with corresponding configurations of the first embodiment. Further, the third embodiment of the present invention can include both some configurations of the first embodiment and some configurations of the second embodiment.

[0424] As described above, the embodiments of the present invention have been described with reference to the accompanying drawings. However, those of ordinary skill in the technical field to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing its technical idea and essential features. Therefore, it must be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims

1. A housing, a substrate disposed in the housing, a holder disposed in the housing, a magnet disposed in the holder, a coil that interacts with the magnet, and an elastic member that connects the housing and the holder, wherein the coil includes a first coil disposed on the substrate and a second coil disposed on the opposite side of the first coil with respect to the optical axis, the elastic member is a lens driving device that electrically connects the second coil and the substrate.

2. The elastic member includes an upper elastic member disposed on the upper surface of the holder, the upper elastic member includes first and second upper elastic members spaced apart from each other, the first upper elastic member is coupled to one end of the second coil, the second upper elastic member is coupled to the other end of the second coil, the lens driving device according to claim 1.

3. The elastic member includes a lower elastic member disposed on the lower surface of the holder, the lower elastic member is integrally formed, the lens driving device according to claim 2.

4. The magnet includes a first magnet that interacts with the first coil and a second magnet that interacts with the second coil, the first coil and the second coil move the holder in the optical axis direction, the lens driving device according to claim 1.

5. The second coil is spaced apart from the substrate, the lens driving device according to claim 1.

6. The upper elastic member includes an inner portion coupled to the upper surface of the holder, an outer portion coupled to the upper surface of the housing, a connecting portion that connects the inner portion and the outer portion, and a terminal portion extending from the outer portion, the terminal portion is coupled to the terminal of the substrate, the housing includes a groove formed at a position corresponding to the terminal of the substrate on the upper surface of the housing, the lens driving device according to claim 2.

7. The magnet includes a first magnet that interacts with the first coil, the first magnet includes a first surface facing the first coil, in a direction perpendicular to the first surface of the first magnet, the first coil includes a first portion that does not overlap the first magnet, when viewed from the inside of the housing, at least a part of the first portion of the first coil is blocked by the housing, the lens driving device according to claim 1.

8. including a driver IC disposed on the substrate, the driver IC includes a sensing unit that senses the magnet, the magnet includes a first magnet portion having an N pole and an S pole, a second magnet portion disposed on the first magnet portion and having an N pole and an S pole, and a neutral portion disposed between the first magnet portion and the second magnet portion, The lens driving device according to claim 1, wherein the driver IC is disposed in the first coil and overlaps the neutral portion of the magnet in a direction perpendicular to the optical axis.

9. The lens driving device according to claim 1, wherein one end portion and the other end portion of the first coil are coupled to the substrate.

10. The lens driving device according to claim 1, wherein both one end portion and the other end portion of the first coil are directly coupled to the substrate.

Images