Lens driving device, camera device, and optical device

Abstract

The present embodiment relates to a lens driving device comprising: a housing; the substrate is arranged in the shell; the retainer is arranged in the shell; a magnet disposed on the holder; a coil interacting with the magnet; and an elastic member connecting the housing and the holder, in which the coil includes a first coil disposed on the substrate and a second coil disposed on an opposite side of the optical axis from the first coil, and the elastic member electrically connects the second coil and the substrate.

Description

Technical Field

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

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

[0003] Recently, research is being conducted on a triple-camera structure in which three camera devices are arranged in parallel on a smartphone.

[0004] At this time, magnetic interference between the camera devices arranged in parallel becomes a problem, and particularly, in the case where the camera device is arranged in the center, a design that avoids magnetic interference with the camera devices on both sides is required.

[0005] In addition, when the camera module is mounted on a small electronic device such as a smartphone, the camera module may often be shaken during use and may slightly shake due to the user's hand shaking when shooting. Considering this, a technology of additionally mounting an anti-shake device on the camera module has recently been developed.

[0006] (Patent Document 1) KR 10-2015-0118005A. Summary of the invention

[0007] An object of a first embodiment of the present disclosure is to provide a lens driving device in which magnetic interference from surrounding camera devices is minimized in a structure in which a plurality of camera devices are arranged in parallel.

[0008] In particular, the purpose of the first embodiment of the present disclosure is to provide a lens driving device that is positioned at the center of a three-camera structure and minimizes magnetic interference with camera devices on both sides. In addition, the purpose of the first embodiment of the present disclosure is to provide a lens driving device that minimizes magnetic interference with adjacent camera devices even when positioned as a dual camera.

[0009] An object of a second embodiment of the present disclosure is to provide a lens driving device capable of improving the accuracy and reliability of AF driving, and a camera module and an optical device including the lens driving device.

[0010] Technical Solution

[0011] According to the first embodiment of the present disclosure, a lens driving device includes: a housing; a substrate disposed in the housing; a retainer disposed in the housing; a magnet disposed in the retainer; a coil interacting with the magnet; and an elastic member connecting the housing and the retainer, 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, and the elastic member can electrically connect the second coil and the substrate.

[0012] The elastic member includes an upper elastic member arranged on the upper surface of the retainer, the upper elastic member including a first upper elastic member and a second upper elastic member spaced apart from each other, the first upper elastic member can be connected to one end portion of the second coil, and the second upper elastic member can be connected to the other end portion of the second coil.

[0013] The elastic member includes a lower elastic member provided on a lower surface of the holder, and the lower elastic member may be integrally formed.

[0014] The magnet includes a first magnet interacting with the first coil and a second magnet interacting with the second coil, and the first coil and the second coil can move the holder in the optical axis direction.

[0015] The second coil may be spaced apart from the substrate.

[0016] The upper elastic member may include an inner portion connected to the upper surface of the retainer, an outer portion connected to the upper surface of the shell, a connecting portion connecting the inner portion and the outer portion, and a terminal portion extending from the outer portion, the terminal portion being connected to the terminal of the substrate, and the shell may include a groove formed on the upper surface of the shell at a position corresponding to the terminal of the substrate.

[0017] The magnet includes a first magnet interacting with the first coil, the first magnet includes a first surface facing the first coil, and in a direction perpendicular to the first surface of the first magnet, the first coil includes a first part that does not overlap with the first magnet, and when viewed from the inside of the shell, at least a portion of the first part of the first coil can be covered by the shell.

[0018] It includes a driver IC arranged on a substrate, the driver IC includes a sensing part for detecting a magnet, the magnet includes a first magnet part having an N pole and an S pole, a second magnet part arranged on the first magnet part and having an N pole and an S pole, and a neutral part arranged between the first magnet part and the second magnet part, and the driver IC is arranged in the first coil and can overlap with the neutral part of the magnet in a direction perpendicular to the optical axis.

[0019] One end portion of the first coil and the other end portion of the first coil may be coupled to the substrate.

[0020] Both the one end portion of the first coil and the other end portion of the first coil may be directly coupled to the substrate.

[0021] Any one of the one end portion of the first coil and the other end portion of the first coil may be coupled to the substrate, and the other of the one end portion of the first coil and the other end portion of the first coil may be coupled to the elastic member.

[0022] The elastic member includes a lower elastic member provided on a lower surface of the holder.

[0023] 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 portion of the second coil, and the second lower elastic member may be coupled to the other end portion of the second coil.

[0024] The elastic member includes an upper elastic member disposed on an upper surface of the retainer and a lower elastic member disposed on a lower surface of the retainer, and the upper elastic member may be coupled to one end portion of the second coil, and the lower elastic member may be coupled to the other end portion of the second coil.

[0025] The lens driving device may include a yoke disposed on an upper surface of the magnet.

[0026] A camera device according to a first embodiment of the present disclosure 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.

[0027] An optical device according to a first embodiment of the present disclosure may include: a main body; a camera device provided in the main body; and a display provided in the main body and outputting at least one of an image and a video captured by the camera device.

[0028] According to the second embodiment of the present disclosure, a lens driving device includes: a shell; a coil frame, which is arranged in the shell; a magnet, which includes a first magnet part arranged on a first side of the shell and a second magnet part positioned on the opposite side of the first side; a coil, which is arranged on the coil frame and includes a first coil part facing the first magnet part and a second coil part facing the second magnet part; and a position sensor, which is arranged on the first side of the shell, wherein the first coil part and the second coil part are arranged to be offset in opposite directions 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 to the second side.

[0029] At least a portion of the position sensor may overlap at least a portion of the second magnet portion in a direction parallel to the virtual surface.

[0030] At least a portion of the position sensor may overlap at least a portion of the second coil portion in a direction parallel to the virtual surface.

[0031] A sensing magnet disposed on the coil former to be opposite to the position sensor may be provided. At least a portion of the sensing magnet may overlap with the second magnet portion in a direction parallel to the virtual plane.

[0032] At least a portion of the sensing magnet may overlap the second coil portion in a direction parallel to the virtual plane.

[0033] At least a portion of the first coil portion may overlap the second coil portion in a direction parallel to the virtual surface.

[0034] At least a portion of the first magnet portion may overlap at least a portion of the second magnet portion in a direction parallel to the virtual surface.

[0035] The first coil portion may include a first portion overlapping the second coil portion in a direction parallel to the virtual plane and a second portion not overlapping the second coil portion.

[0036] A length of the first portion of the housing in a direction perpendicular to the virtual plane may be smaller than a length of the second portion of the housing in the direction perpendicular to the virtual plane.

[0037] The lens driving device includes: an elastic member, the elastic member is coupled to a coil frame and a housing; and a circuit board, the circuit board is arranged on a first side portion of the housing, wherein a first coil part and a second coil part are electrically connected to the elastic member, and the elastic member can be electrically connected to the circuit board. Each of the first coil part and the second coil part can be in a ring shape with a hollow portion.

[0038] The housing includes third and fourth sides disposed between the first and second sides and positioned opposite to each other, and the magnet may not be disposed on the third and fourth sides of the housing.

[0039] The position sensor may not overlap the first magnet portion in a direction parallel to the virtual plane.

[0040] The coil may not be disposed on an outer surface of the bobbin opposite to each of the third and fourth sides of the case.

[0041] According to another embodiment, a lens driving device includes: a shell; a coil frame, which is arranged in the shell; a magnet, which includes a first magnet part arranged on a first side of the shell and a second magnet part positioned on the opposite side of the first side; a coil, which is arranged on the coil frame and includes a first coil part facing the first magnet part and a second coil part facing the second magnet part; and a position sensor, which is arranged on the first side of the shell, wherein the first coil part is arranged to be adjacent to one of two corner parts of the shell that are opposite to each other about the optical axis, and the second coil part is arranged to be adjacent to the other remaining corner part of the two corner parts of the shell that are opposite to each other about the optical axis.

[0042] Beneficial Effects

[0043] Through the first embodiment of the present disclosure, magnetic interference from surrounding camera devices can be minimized in a structure in which a plurality of camera devices are arranged in parallel.

[0044] Therefore, more precise autofocus control is possible.

[0045] Furthermore, through the first embodiment of the present disclosure, it is possible to provide an ultra-wide camera device that is disposed in the center of a triple-camera structure to minimize magnetic interference from camera devices on both sides.

[0046] In addition, through the first embodiment of the present disclosure, an ultra-wide camera device can be provided in which magnetic interference with adjacent camera devices is minimized even when set as a dual camera.

[0047] In a second embodiment of the present disclosure, by arranging the position sensor and the driving magnet on one side of the shell and arranging the sensing magnet on the coil frame to face the position sensor, the magnetic interference between the sensing magnet and the magnet of the adjacent actuator can be reduced, thereby improving the accuracy and reliability of AF drive.

[0048] The second embodiment of the present disclosure performs AF driving using two magnet portions and two coil portions corresponding to the two magnet portions, and is therefore suitable for designing a large-diameter lens driving device. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 is a perspective view illustrating a lens driving device according to a first embodiment of the present disclosure.

[0050] Figure 2 It is along Figure 1 A cross-sectional view taken along line aa.

[0051] Figure 3 is from Figure 1 Cross-sectional view taken from bb in FIG.

[0052] Figure 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 disclosure.

[0053] Figure 5 is an exploded perspective view illustrating a lens driving device according to a first embodiment of the present disclosure.

[0054] Figure 6 is a perspective view illustrating the lens driving device according to the first embodiment of the present disclosure, in which a cover is removed.

[0055] Figure 7 It is a diagram showing the Figure 6 Observed from different directions Figure 6 A stereoscopic diagram of the lens driving device in a state.

[0056] Figure 8 is a perspective view illustrating a fixing portion of the lens driving device according to the first embodiment of the present disclosure.

[0057] Fig. 9 is a perspective view illustrating a moving portion of a lens driving device according to a first embodiment of the present disclosure.

[0058] Fig.10 is a perspective view illustrating an elastic member of the lens driving device according to the first embodiment of the present disclosure.

[0059] Fig.11a is a perspective view illustrating a driving portion and an upper elastic member of the lens driving device according to the first embodiment of the present disclosure.

[0060] Fig.11b is a view illustrating a substrate and related components of the lens drive device according to the first embodiment of the present disclosure as viewed from the inside.

[0061] Fig.12 It is a diagram showing the Fig.11a Different directions seen in Fig.11a A partial stereoscopic view of the lens driving device in a state.

[0062] Fig.13 is a perspective view illustrating a portion in which an upper elastic member and a substrate of the lens driving device according to the first embodiment of the present disclosure are coupled.

[0063] Fig.14 is a perspective view illustrating a portion in which an upper elastic member and a coil are coupled in the lens driving device according to the first embodiment of the present disclosure.

[0064] Fig.15is a partial perspective cross-sectional view illustrating a first coil of the lens drive device according to the first embodiment of the present disclosure as viewed from the inside of a housing.

[0065] Fig.16 (a) is a perspective view illustrating a lens driving device according to a modified example, in which a cover is removed, and Fig.16 (b) is a cross-sectional view.

[0066] Figures 17 to 19 1 is a view for explaining the automatic focus driving of the lens driving device according to the first embodiment of the present disclosure. Fig.17 is a cross-sectional view illustrating a state of a moving portion in an initial state in which no current is applied to the coil. Fig.18 is a cross-sectional view illustrating a state in which the moving portion moves upward in the optical axis direction when a forward current is applied to the coil. Fig.19 is a cross-sectional view illustrating a state in which the moving portion moves downward in the optical axis direction when a reverse current is applied to the coil.

[0067] Fig. 20 is an exploded perspective view illustrating a camera device according to a first embodiment of the present disclosure.

[0068] Fig.21 is a conceptual diagram illustrating a three-camera device according to a first embodiment of the present disclosure.

[0069] Fig. 22 is a perspective view illustrating an optical device according to a first embodiment of the present disclosure.

[0070] Fig.23 is a perspective view illustrating an optical device according to a modified example.

[0071] Fig.24 is an exploded perspective view illustrating a lens driving device according to a second embodiment of the present disclosure.

[0072] Fig.25 It's a picture. Fig.24 A perspective view of a lens driving device excluding a cover member.

[0073] Fig.26 It is an exploded perspective view showing the coil bobbin and the housing.

[0074] Fig.27a is a first perspective view illustrating a bobbin, a coil, a sensing magnet, and a balancing magnet.

[0075] Figure 27b is a second perspective view illustrating the coil former, the coil, the sensing magnet and the balancing magnet.

[0076] Fig.28ais a first perspective view illustrating a housing, a magnet, a position sensor, and a capacitor.

[0077] Fig.28b is a second perspective view illustrating the housing, magnet, position sensor, and capacitor.

[0078] Fig.29 is a plan view illustrating an upper elastic member.

[0079] Fig.30 is a plan view illustrating a lower elastic member.

[0080] Fig.31 is a diagram illustrating the connection of a lower elastic member, a first coil portion, a second coil portion, and a circuit board.

[0081] Fig.32 is a perspective view illustrating a circuit board, a position sensor, a capacitor, a magnet, and a coil.

[0082] Fig.33 is a perspective view illustrating a circuit board, a lower elastic member, and a base.

[0083] Fig.34a It's a picture. Figure 2 A cross-sectional view of the lens driving device in the AB direction.

[0084] Fig.34b It's a picture. Figure 2 A cross-sectional view of the lens driving device in the CD direction.

[0085] Fig.34c It's a picture. Figure 2 A cross-sectional view of the lens driving device in the EF direction.

[0086] Fig.35 is a plan view illustrating a coil, a magnet, a position sensor, a sensing magnet, a balancing magnet, and a capacitor.

[0087] Fig.36 is a conceptual diagram illustrating a triple-camera device according to a second embodiment of the present disclosure.

[0088] Fig.37 is an exploded perspective view illustrating a camera module according to a second embodiment of the present disclosure.

[0089] Fig.38 is a perspective view illustrating a portable terminal according to a second embodiment of the present disclosure.

[0090] Fig.39 It's a picture. Fig.38 A configuration diagram of a portable terminal shown in . DETAILED DESCRIPTION

[0091] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0092] However, the technical concept of the present disclosure is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical concept of the present disclosure, one or more of the components in the embodiments can be selectively connected or replaced for use.

[0093] In addition, unless explicitly and specifically defined and described, the terms (including technical terms and scientific terms) used in the embodiments of the present disclosure may be interpreted as having meanings that are generally understandable to ordinary technicians in the technical field to which the present disclosure belongs, and commonly used terms, such as terms defined in dictionaries, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0094] In addition, the terms used in the embodiments of the present disclosure are for the purpose of describing the embodiments and are not intended to limit the present disclosure.

[0095] In this specification, unless otherwise specifically stated in a phrase, the singular may also include the plural, and when the singular is described as "at least one or one or more of A, B, C", it may include one or more of all combinations that can be combined with A, B, C.

[0096] In addition, when describing components of the embodiments of the present disclosure, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish components from other components and are not intended to limit the nature, order or sequence of the components.

[0097] In addition, when a component is described as being “connected,” “coupled” or “linked” to another component, this may include not only the case where the component is directly “connected,” “coupled” or “linked” to another component, but also the case where the component is “connected,” “coupled” or “linked” through other components between the component and the other component.

[0098] In addition, when described as being formed or disposed “above” or “below” each component, “above” and “below” include not only a case where two components are in direct contact with each other, but also a case where one or more other components are formed or disposed between the two components. In addition, when expressed as “above” or “below”, the meaning of a downward direction and an upward direction based on one component may be included.

[0099] The "optical axis" used below (see Figure 1 The “OA direction, etc.)” is defined as the optical axis direction of the lens and / or image sensor connected to the lens driving device.

[0100] The "vertical direction" used below may be a direction parallel to or the same as the optical axis direction. The vertical direction may correspond to the "z-axis direction". The "horizontal direction" used below may be a direction perpendicular to the vertical direction. In other words, the horizontal direction may be a direction perpendicular to the optical axis. Therefore, the horizontal direction may include the "x-axis direction" and the "y-axis direction".

[0101] The "auto focus (AF) function" used below is defined as a function of automatically focusing on a subject by adjusting the distance to the image sensor by moving the lens in the optical axis direction according to the distance to the subject, so that a clear video of the subject can be obtained on the image sensor. In addition, "closed loop auto focus (CLAF) control" is defined as detecting the distance between the image sensor and the lens to provide real-time feedback control of the position of the lens, thereby improving the accuracy of focus adjustment.

[0102] Hereinafter, configurations of lens driving devices according to a first embodiment and modified examples of the present disclosure will be described with reference to the drawings.

[0103] Figure 1 is a perspective view illustrating a lens driving device according to a first embodiment of the present disclosure, Figure 2 It is along Figure 1 The cross-sectional view taken along line aa of Figure 3 is from Figure 1 The cross-sectional view taken from bb in the figure, Figure 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 disclosure, Figure 5 is an exploded perspective view illustrating a lens driving device according to a first embodiment of the present disclosure, Figure 6 is a perspective view illustrating a lens driving device according to a first embodiment of the present disclosure, wherein a cover is removed, Figure 7 It is a diagram showing the Figure 6 Observed from different directions Figure 6 A perspective view of a lens driving device in a state of Figure 8 is a perspective view illustrating a fixing portion of a lens driving device according to a first embodiment of the present disclosure, Fig. 9 is a perspective view illustrating a moving portion of a lens driving device according to a first embodiment of the present disclosure, Fig.10 is a perspective view illustrating an elastic member of a lens driving device according to a first embodiment of the present disclosure, Fig.11a is a perspective view illustrating a driving portion and an upper elastic member of a lens driving device according to a first embodiment of the present disclosure, Fig.11b is a view illustrating a substrate and related components of a lens driving device according to a first embodiment of the present disclosure as viewed from the inside, Fig.12It is a diagram showing the Fig.11a Different directions seen in Fig.11a A partial stereoscopic diagram of a lens driving device in a state of Fig.13 is a perspective view illustrating a portion in which an upper elastic member and a substrate of the lens driving device according to the first embodiment of the present disclosure are coupled, Fig.14 is a perspective view illustrating a portion in which an upper elastic member and a coil are coupled in the lens driving device according to the first embodiment of the present disclosure, Fig.15 is a partial perspective cross-sectional view illustrating a first coil of the lens drive device according to the first embodiment of the present disclosure as viewed from the inside of the housing, and Fig.16 (a) is a perspective view illustrating a lens driving device according to a modified example, in which a cover is removed, and Fig.16 (b) is a cross-sectional view.

[0104] 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 may include an AF module.

[0105] The lens driving device 1010 may include a fixed portion 1100. The fixed portion 1100 may be a portion that is relatively fixed when the moving portion 1200 moves. The moving portion 1200 may move relative to the fixed portion 1100.

[0106] The lens driving device 1010 may include a housing 1110. The fixing portion 1100 may include the housing 1110. The housing 1110 may be disposed on the base 1140. The housing 1110 may be disposed within the cover 1150. The housing 1110 may be disposed on the outside of the holder 1210. The housing 1110 may be formed as an injection molded product. The housing 1110 may be formed of a non-conductive material.

[0107] The housing 1110 may include a groove 1111. The groove 1111 may be a coil receiving groove. The groove 1111 may be concavely formed on the outer surface of the housing 1110. The groove 1111 may be formed to be recessed relative to the outer surface of the housing 1110. The coil 1130 may be disposed in the groove 1111. At least a portion of the groove 1111 may include a shape corresponding to the coil 1130.

[0108] The housing 1110 may include a protrusion 1112. The protrusion 1112 may be a coil winding protrusion. The protrusion 1112 may be formed on the outer surface of the housing 1110. The protrusion 1112 may be positioned in the groove 1111. The coil 1130 may be wound around the protrusion 1112. The protrusion 1112 may include at least two protrusions that support the inner side of the coil 1130 from both sides.

[0109] The housing 1110 may include a hole 1113. The hole 1113 may be formed between the coil 1130 and the magnet 1220. The hole 1113 may penetrate the side wall of the housing 1110. The side wall of the housing 1110 may be referred to as a side portion or a side plate. The hole 1113 may be provided between the coil 1130 and the magnet 1220.

[0110] The housing 1110 may include a groove 1114. The groove 1114 may be a groove for accommodating a conductive member. The groove 1114 may be formed on the upper surface of the housing 1110. The groove 1114 may be formed at a position corresponding to the terminal 1122 of the substrate 1120. At least a portion of the conductive member may be received in the groove 1114. A solder ball may be accommodated in the groove 1114. The solder ball may be disposed in the groove 1114. The groove 1114 may be disposed at a position corresponding to the terminal portion 1314 of the upper elastic member 13310. The groove 1114 may be disposed below the terminal portion 1314 of the upper elastic member 13310.

[0111] The housing 1110 may include a groove 1115. The groove 1115 may be a coil end avoidance groove. The groove 1115 may be formed to avoid the two ends of the second coil 1132. The groove 1115 may be formed to allow the second coil 1132 to pass through. The groove 1115 may be formed on the outer surface or the inner surface of the housing 1110. The groove 1115 may include a plurality of grooves. The groove 1115 may include two grooves. The groove 1115 may include a first groove formed on the outer surface of the upper portion of the housing 1110 and a second groove formed on the inner surface of the upper portion of the housing 1100.

[0112] The housing 1110 may include a groove 1116. The groove 1116 may be a stopper accommodating groove. The protrusion 1214 of the holder 1210 may be disposed in the groove 1116. At least a portion of the groove 1116 may have a shape corresponding to the protrusion 1214 of the holder 1210. When the holder 1210 rotates, the protrusion 1214 of the holder 1210 may contact the groove 1116 of the housing 1110. In addition, when the holder 1210 moves in a direction perpendicular to the optical axis, the protrusion 1214 of the holder 1210 may contact the groove 1116 of the housing 1110.

[0113] One of the grooves 1111, 1114, 1115 and 1116 of the shell 1110 may be referred to as a "first groove", another may be referred to as a "second groove", another may be referred to as a "third groove", and the remaining one may be referred to as a "fourth groove".

[0114] The lens driving device 1010 may include a substrate 1120. The fixing portion 1100 may include the substrate 1120. The substrate 1120 may be a circuit board. The substrate 1120 may be a printed circuit board. The substrate 1120 may include a flexible printed circuit board (FPCB). The substrate 1120 may be disposed in the housing 1110. The substrate 1120 may be disposed on a side plate of the housing 1110. The substrate 1120 may be disposed on an outer surface of the housing 1110. The substrate 1120 may be disposed parallel to the optical axis.

[0115] The substrate 1120 may include a body portion 1121. A first coil 1131 may be disposed in the body portion 1121. The first coil 1131 may be disposed on an inner surface of the body portion 1121. The body portion 1121 may be disposed in the housing 1110. The body portion 1121 may be disposed on an outer surface of the housing 1110.

[0116] The substrate 1120 may include a terminal 1122. The terminal 1122 may be an upper terminal. The terminal 1122 may be formed on the body portion 1121. The terminal 1122 may be formed on the inner surface of the body portion 1121. The terminal 1122 may be formed on the upper portion of the body portion 1121. The terminal 1122 may be coupled to the upper elastic member 1310. The terminal 1122 may include a plurality of terminals. The terminal 1122 may include two terminals. The terminal 1122 may include a first terminal and a second terminal.

[0117] The substrate 1120 may include a terminal portion 1123. The terminal portion 1123 may extend from the body portion 1121. The terminal portion 1123 may extend downward from the body portion 1121. The terminal portion 1123 may be formed at a lower portion of the substrate 1120. The terminal portion 1123 may be coupled to the printed circuit board 1050.

[0118] The substrate 1120 may include a terminal 1124. The terminal 1124 may be a lower terminal. The terminal 1124 may be formed on the terminal portion 1123. The terminal 1124 may be formed on the outer surface of the terminal portion 1123. The terminal 1124 may be formed on the lower portion of the terminal portion 1123. The terminal 1124 may be coupled to the printed circuit board 1050 of the camera device 1010A. The terminal 1124 may include a plurality of terminals. The terminal 1124 may include five terminals. The terminal 1124 may be electrically connected to the driver IC 1160.

[0119] One of the terminals 1122 and 1124 of the substrate 1120 may be referred to as a “first terminal”, and the other may be referred to as a “second terminal”.

[0120] The substrate 1120 may include a hole 1125. The hole 1125 of the substrate 1120 may be coupled with the housing 1110. The hole 1125 may be coupled with a protrusion of the housing 1110. The protrusion of the housing 1110 may be inserted into the hole 1125 of the substrate 1120. The hole 1125 may include a plurality of holes. The hole 1125 may include two holes.

[0121] The lens driving device 1010 may include a coil 1130. The fixed part 1100 may include the coil 1130. The driving part may include the coil 1130. The AF driving part may include the coil 1130. The coil 1130 may interact with the magnet 1220. The coil 1130 may move the magnet 1220 in the optical axis direction. The coil 1130 may move the magnet 1220 in the optical axis direction by interacting with the magnet 1220. The coil 1130 may face the magnet 1220. The coil 1130 may be disposed at a position corresponding to the magnet 1220. The coil 1130 may overlap the magnet 1220 in a direction perpendicular to the optical axis. The coil 1130 may be disposed on the substrate 1120. The coil 1130 may be disposed on the housing 1110. The coil 1130 may be disposed on the fixed part 1100.

[0122] The coil 1130 may include a plurality of coils. The coil 1130 may include two coils. The two coils may be electrically connected. Alternatively, the two coils may be electrically isolated. The two coils may be spaced apart from each other.

[0123] The coil 1130 may include a first coil 1131. The first coil 1131 may interact with the first magnet 1221. The first coil 1131 may move the first magnet 1221 in the optical axis direction. The first coil 1131 may move the first magnet 1221 in the optical axis direction by interacting with the first magnet 1221. The first coil 1131 may face the first magnet 1221. The first coil 1131 may be disposed at a position corresponding to the first magnet 1221. The first coil 1131 may overlap with the first magnet 1221 in a direction perpendicular to the optical axis. The first coil 1131 may be disposed on the substrate 1120. The first coil 1131 may be disposed on the housing 1110. The first coil 1131 may be disposed on the fixing portion 1100. The first coil 1131 may move the holder 1210 in the optical axis direction.

[0124] One end portion of the first coil 1131 and the other end portion of the first coil 1131 may both be directly coupled to the substrate 1120. Through this, the first coil 1131 may be electrically connected to the driver IC 1160. In a modification, one of the one end portion of the first coil 1131 and the other end portion 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. In other words, in a modification, the first coil 1131 may be electrically connected to the driver IC 1160 through the substrate 1120 and the elastic member 1300.

[0125] The first magnet 1221 may 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 may 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 portion of the first portion 1131-1 of the first coil 1131 may be covered by the housing 1110. The width of the first coil 1131 may be greater than the width of the first magnet 1221. The first coil 1131 may 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 applied by the interaction may be less than the force of other portions of the first coil 1131.

[0126] The coil 1130 may include a second coil 1132. The second coil 1132 may be disposed on the opposite side of the first coil 1131 with respect to the optical axis. The second coil 1132 may enable the holder 1210 to move in the direction of the optical axis. The second coil 1132 may be spaced apart from the substrate 1120. The second coil 1132 may be disposed in the housing 1110. The second coil 1132 may be disposed in the fixed portion 1100. The second coil 1132 may be separated from the first coil 1131. The second coil 1132 may be spaced apart from the first coil 1131. The second coil 1132 may be electrically separated from the first coil 1131. Alternatively, the second coil 1132 may be electrically connected to the first coil 1131.

[0127] The second coil 1132 may interact with the second magnet 1222. The second coil 1132 may move the second magnet 1222 in the direction of the optical axis. The second coil 1132 may move the second magnet 1222 in the direction of the optical axis by interacting with the second magnet 1222. The second coil 1132 may face the first magnet 1222. The second coil 1132 may face the second magnet 1222. The second coil 1132 may be disposed at a position corresponding to the second magnet 1222. The second coil 1132 may overlap with the second magnet 1222 in a direction perpendicular to the optical axis.

[0128] One end portion of the second coil 1132 and the other end portion of the second coil 1132 may both be directly coupled to the upper elastic member 1310. The second coil 1132 may be coupled to the upper elastic member 1310 through a conductive member. The second coil 1132 may be coupled to the upper elastic member 1310 by soldering or welding. Through this, the second coil 1132 may be electrically connected to the driver IC 1160. The second coil 1132 may receive current from the driver IC 1160.

[0129] The lens driving device 1010 may include a base 1140. The fixing portion 1100 may include the base 1140. The base 1140 may be positioned below the housing 1110. The base 1140 may be positioned below the holder 1210. The base 1140 may be coupled to the cover 1150. When the holder 1210 moves as far downward as possible in the optical axis direction, the base 1140 may contact the holder 1210.

[0130] The lens driving device 1010 may include a cover 1150. The fixing portion 1100 may 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 on the housing 1110. The cover 1150 may accommodate the housing 1110 therein. The cover 1150 may accommodate the holder 1220 therein. The cover 1150 may be a shielding member. The cover 1150 may be a shielding can. The cover 1150 may block electromagnetic interference (EMI). At this time, the cover member 1150 may be an EMI shielding can.

[0131] The cover 1150 may include an upper plate 1151. The upper plate 1151 may be seated on the moving part 1200. The upward movement of the moving part 1200 may be restricted by the contact of the moving part 1200 with the upper plate 1151. The upper plate 1151 may include a hole through which light passes.

[0132] The cover 1150 may include a side plate 1152. The side plate 1152 may extend from the upper plate 1151. The side plate 1152 may be disposed on the base 1110. The side plate 1152 may be disposed on a step portion protruding from a lower portion of an outer surface of the base 1110. The side plate 1152 may be disposed on the housing 1110. The side plate 1152 may include a plurality of side plates. The side plate 1152 may include four side plates. The side plate 1152 may include a first side plate and a second side plate disposed opposite to each other and a third side plate and a fourth side plate disposed opposite to each other. In the present 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.

[0133] The lens driving device 1010 may include a driver IC 1160. The fixed part 1100 may include the driver IC 1160. The driver IC 1160 may be disposed on the substrate 1120. The driver IC 1160 may include a sensing portion for detecting the magnet 1220. The sensing portion may include a Hall element (Hall IC). The sensing portion may include a Hall sensor. The driver IC 1160 may be electrically connected to the coil 1130. The driver IC 1160 may provide current to the coil 1130. The driver IC 1160 may be electrically connected to the first coil 1131. The driver IC 1160 may provide current to the first coil 1131. The driver IC 1160 may be electrically connected to the second coil 1132. The driver IC 1160 may provide current to the second coil 1132. The driver IC 1160 may detect movement of the first magnet 1220. The movement amount or position of the first magnet 1220 detected by the driver IC 1160 may be used for feedback of the automatic focusing drive.

[0134] The driver IC 1160 may be disposed inside the first coil 1131. The driver IC 1160 may overlap with the neutral portion 1220-3 of the magnet 1220 in a direction perpendicular to the optical axis. In a variation, the driver IC 1160 may be disposed on the outside of the first coil 1131.

[0135] Alternatively, the lens driving device 1010 may include a Hall sensor. In other words, the lens driving device 1010 may include a Hall sensor instead of the driver IC 1160.

[0136] The lens driving device 1010 may include a capacitor 1170. The fixed portion 1100 may include the capacitor 1170. The capacitor 1170 may be disposed on the substrate 1120. The capacitor 1170 may be disposed on an inner surface of the substrate 1120. The capacitor 1170 may be disposed within the first coil 1131. The capacitor 1170 may be disposed near the driver IC 1160. The capacitor 1170 may be electrically connected to the driver IC 1160. The capacitor 1170 may remove noise generated in transmission and reception of the driver IC 1160.

[0137] like Fig.16 As shown in , in a variation, the lens driving device 1010 may include a yoke 1180. The fixing portion 1100 may include a yoke 1180. The yoke 1180 may be disposed on an upper surface of the magnet 1220. In a variation, the yoke 1180 may be disposed between the magnet 1220 and the retainer 1210. Alternatively, the yoke 1180 may be disposed on a lower surface of the magnet 1220. The yoke 1180 may prevent magnetic flux leakage of the magnet 1220 and increase the force for electromagnetic interaction with the coil 1130.

[0138] The yoke 1180 may include a plurality of yokes. The yoke 1180 may include two yokes. The yoke 1180 may include a first yoke 1181. The first yoke 1181 may be disposed on the first magnet 1221. The first yoke 1181 may be disposed on the upper surface of the first magnet 1221. The first yoke 1181 may be formed to have a size corresponding to the upper surface of the first magnet 1221. The yoke 1180 may include a second yoke 1182. The second yoke 1182 may be disposed on the second magnet 1222. The second yoke 1182 may be disposed on the upper surface of the second magnet 1222. The second yoke 1182 may be formed to have a size corresponding to the upper surface of the second magnet 1222.

[0139] The lens driving device 1010 may include a moving part 1200. The moving part 1200 may be disposed on the fixed part 1100. The moving part 1200 may be disposed inside the fixed part 1100. The moving part 1200 may be disposed on the fixed part 1100. The moving part 1200 may be disposed on the fixed part 1100 in a movably manner. The moving part 1200 may be moved relative to the fixed part 1100 by the driving part. The moving part 1200 may move during AF driving. The lens may be coupled to the moving part 1200. The moving part 1200 may be elastically supported by an elastic member 1300.

[0140] The lens driving device 1010 may include a holder 1210. The moving part 1200 may include a holder 1210. The holder 1210 may be arranged in the housing 1110. The holder 1210 may be arranged in the housing 1210. The holder 1210 may be arranged on the base 1110. The holder 1210 may be arranged in the cover 1150. The holder 1210 may be arranged to be movable along the optical axis direction. The holder 1210 may be arranged to be movable along the optical axis direction in the housing 1210. The holder 1210 may be arranged to be movable on the base 1110 along the optical axis direction. The holder 1210 may be arranged to be movable in the cover 1150 along the optical axis direction. The holder 1210 may be combined with the lens. The holder 1210 may move along the optical axis direction.

[0141] The holder 1210 may include a hole 1211. The hole 1211 may be hollow. The lens may be disposed in the hole 1211. The hole 1211 may penetrate the holder 1210 along the optical axis direction. The hole 1211 may be disposed at a position corresponding to the hole of the base 1140.

[0142] The retainer 1210 may include a groove 1212. The groove 1212 may be a connection portion avoidance groove of the upper elastic member. The groove 1212 may be concavely formed on the upper surface of the retainer 1210. The groove 1212 may be formed at a position corresponding to the connection portion 1313 of the upper elastic member 1310. The groove 1212 may be formed so that the connection portion 1313 of the upper elastic member 1310 does not contact the retainer 1210 even when the retainer 1210 moves upward in the optical axis direction.

[0143] The retainer 1210 may include a groove 1213. The groove 1213 may be a connection portion avoidance groove of the lower elastic member. The groove 1213 may be concavely formed on the lower surface of the retainer 1210. The groove 1213 may be formed at a position corresponding to the connection portion 1323 of the lower elastic member 1320. The groove 1213 may be formed so that the connection portion 1323 of the lower elastic member 1320 does not contact the retainer 1210 even when the retainer 1210 moves downward along the optical axis direction.

[0144] The retainer 1210 may include a protrusion 1214. The protrusion 1214 may be a lateral stopper. Alternatively, the protrusion 1214 may be an anti-rotation stopper. The protrusion 1214 may protrude from the side surface of the retainer 1210. The protrusion 1214 may be formed on the outer surface of the retainer 1210. At least a portion of the protrusion 1214 may be positioned in the groove 1116 of the housing 1110. When the retainer 1210 rotates, the protrusion 1214 may be stuck on the housing 1110 to limit the rotation of the retainer 1210. Even when the retainer 1210 moves horizontally, the protrusion 1214 of the retainer 1210 may contact the housing 1110 to limit the amount of movement.

[0145] The holder 1210 may include a groove 1215. The groove 1215 may be a magnet receiving groove. The groove 1215 may be concavely formed on a side surface of the holder 1210. An adhesive for attaching the magnet 1220 to the holder 1210 may be placed in the groove 1215. The magnet 1220 may be placed in the groove 1215. The groove 1215 may include a shape corresponding to the magnet 1220.

[0146] One of the groove 1212 , the groove 1213 , and the groove 1215 of the holder 1210 may be referred to as a “first groove”, another one may be referred to as a “second groove”, and the remaining one may be referred to as a “third groove”.

[0147] The lens driving device 1010 may include a magnet 1220. The moving part 1200 may include a magnet 1220. The driving part may include a magnet 1220. The magnet 1220 may be disposed in the holder 1210. The magnet 1220 may 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 bonded to the holder 1210. The magnet 1220 may be disposed in the cover 1150. The magnet 1220 may interact with the coil 1130. The magnet 1220 may electromagnetically interact with the coil 1130. The magnet 1220 may be positioned at a position corresponding to the coil 1130. The magnet 1220 may face the coil 1130. The magnet 1220 may face the coil 1130. The magnet 1220 may overlap the coil 1130 in a direction perpendicular to the optical axis.

[0148] The magnet 1220 may be a quadrupole magnet. The magnet 1220 may be a quadrupole magnetized magnet. The upper portion of the magnet 1220 may include an N pole and an S pole, the lower portion of the magnet 1220 may include an S pole and an N pole, and the center of the magnet 1220 may be a neutral region. In more detail, the outer surface of the upper portion of the magnet 1220 may be an N pole, and the inner surface of the upper portion may be an S pole. The outer surface of the lower portion of the magnet 1220 may be an S pole, and the inner surface of the lower portion may be an N pole. The upper portion and the lower portion of the magnet 1220 may be separated from each other by a neutral region.

[0149] The magnet 1220 may be formed by stacking two single magnets up and down. The magnet 1220 may include a first magnet portion 1220-1. The first magnet portion 1220-1 may have an N pole and an S pole. The magnet 1220 may include a second magnet portion 1220-2. The second magnet portion 1220-2 may be disposed on the first magnet portion 1220-1. The second magnet portion 1220-2 may have an N pole and an S pole. The magnet 1220 may include a neutral portion 1220-3. The neutral portion 1220-3 may be disposed between the first magnet portion 1220-1 and the second magnet portion 1220-2.

[0150] The magnet 1220 may include a plurality of magnets. The magnet 1220 may include two magnets.

[0151] The magnet 1220 may include a first magnet 1221. The first magnet 1221 may be disposed in the holder 1210. The first magnet 1221 may 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 bonded to the holder 1210. The first magnet 1221 may be disposed inside the cover 1150. The first magnet 1221 may interact with the first coil 1131. The first magnet 1221 may electromagnetically interact with the first coil 1131. The first magnet 1221 may be disposed at a position corresponding to the first coil 1131. The first magnet 1221 may face the first coil 1131. The first magnet 1221 may face the first coil 1131. The first magnet 1221 may overlap with the first coil 1131 in a direction perpendicular to the optical axis.

[0152] The magnet 1220 may include a second magnet 1222. The second magnet 1222 may be disposed in the holder 1210. The second magnet 1222 may 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 bonded to the holder 1210. The second magnet 1222 may be disposed inside the cover 1150. The second magnet 1222 may interact with the second coil 1132. The second magnet 1222 may electromagnetically interact with the second coil 1132. The second magnet 1222 may be positioned at a position corresponding to the second coil 1132. The second magnet 1222 may face the second coil 1132. The second magnet 1222 may face the second coil 1132. The second magnet 1222 may overlap with the second coil 1132 in a direction perpendicular to the optical axis.

[0153] The lens driving device 1010 may include an elastic member 1300. The elastic member 1300 may connect the housing 1110 and the holder 1210. The elastic member 1300 may elastically connect the housing 1110 and the holder 1210. The elastic member 1300 may support the holder 1210 in a movable manner. The elastic member 1300 may support the holder 1210 so as to be movable along the optical axis direction. The elastic member 1300 may elastically support the holder 1210. At least a portion of the elastic member 1300 may have elasticity. The elastic member 1300 may connect the second coil 1132 and the substrate 1120. The elastic member 1300 may electrically connect the second coil 1132 and the substrate 1120. The elastic member 1300 may 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 a metal.

[0154] The lens driving device 1010 may include an upper elastic member 1310. The elastic member 1300 may include an upper elastic member 1310. The upper elastic member 1310 may be disposed on an upper surface of the holder 1210. The upper elastic member 1310 may be disposed on an upper portion of the holder 1210. The upper elastic member 1310 may be disposed above 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.

[0155] The upper elastic member 1310 may include a plurality of upper elastic members. The upper elastic member 1310 may include two upper elastic members. The upper elastic member 1310 may include a first upper elastic member 1310-1 and a second upper elastic member 1310-2 that are spaced apart from each other.

[0156] The upper elastic member 1310 may include a first upper elastic member 1310-1. The first upper elastic member 1310-1 may be coupled to one end portion of the second coil 1132. The first upper elastic member 1310-1 may electrically connect one end portion of the second coil 1132 and the substrate 1120. The upper elastic member 1310 may include a second upper elastic member 1310-2. The second upper elastic member 1310-2 may be coupled to the other end portion of the second coil 1132. The second upper elastic member 1310-2 may electrically connect the other end portion of the second coil 1132 and the substrate 1120. The first upper elastic member 1310-1 and the second upper elastic member 1310-2 may be formed in shapes corresponding to each other.

[0157] The upper elastic member 1310 may include an inner portion 1311. The inner portion 1311 may be coupled to the upper surface of the retainer 1210. The inner portion 1311 may be disposed on the upper surface of the retainer 1210. The inner portion 1311 may be fixed to the upper surface of the retainer 1210. The inner portion 1311 may include a hole coupled to a protrusion formed on the upper surface of the retainer 1210.

[0158] The upper elastic member 1310 may 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 may include a hole coupled to a protrusion formed on the upper surface of the housing 1110.

[0159] The upper elastic member 1310 may include a connecting portion 1313. The connecting portion 1313 may connect the inner portion 1311 and the outer portion 1312. The connecting portion 1313 may elastically connect the inner portion 1311 and the outer portion 1312. At least a portion of the connecting portion 1313 and the inner portion 1311 may move relative to the outer portion 1312. At least a portion of the connecting portion 1313 may be elastic. The connecting portion 1313 may include a curved shape.

[0160] The upper elastic member 1310 may include a terminal portion 1314. The terminal portion 1314 may extend from the outer portion 1312. The terminal portion 1314 may be coupled to the terminal 1122 of the substrate 1120. The terminal portion 1314 may be formed in a shape that is easily coupled to the terminal 1122 of the substrate 1120. The terminal portion 1314 may be integrally formed with the outer portion 1312.

[0161] The upper elastic member 1310 may include a groove 1315. One end portion of the second coil 1132 may be coupled to the groove 1315. One end portion of the second coil 1132 may be coupled to the groove 1315 by welding.

[0162] The lens driving device 1010 may include a lower elastic member 1320. The elastic member 1300 may include a 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 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 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 may be integrally formed. The lower elastic member 1320 may connect the holder 1210 and the housing 1110. In addition, the lower elastic member 1320 may connect the holder 1210 and the base 1140.

[0163] The lower elastic member 1320 may include an inner portion 1321. The inner portion 1321 may be coupled to the lower surface of the retainer 1210. The inner portion 1321 may be disposed on the lower surface of the retainer 1210. The inner portion 1321 may be fixed to the lower surface of the retainer 1210. The inner portion 1321 may include a hole coupled to a protrusion formed on the lower surface of the retainer 1210.

[0164] The lower elastic member 1320 may 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 may include a hole coupled to a protrusion formed on the lower surface of the housing 1110. Alternatively, 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 may include a hole coupled to a protrusion formed on the upper surface of the base 1140.

[0165] The lower elastic member 1320 may include a connecting portion 1323. The connecting portion 1323 may connect the inner portion 1321 and the outer portion 1322. The connecting portion 1323 may elastically connect the inner portion 1321 and the outer portion 1322. At least a portion of the connecting portion 1323 and the inner portion 1321 may move relative to the outer portion 1322. At least a portion of the connecting portion 1323 may be elastic. The connecting portion 1323 may include a curved shape.

[0166] In a modification, the lower elastic member 1320 may include a plurality of lower elastic members. The lower elastic member 1320 may include two lower elastic members. The lower elastic member 1320 may include two lower elastic members spaced apart from each other. The lower elastic member 1320 may include a first lower elastic member. The lower elastic member 1310 may include a second lower elastic member. The second lower elastic member may be spaced apart from the first lower elastic member. The first lower elastic member may be coupled to one end portion of the second coil 1132. The second lower elastic member may be coupled to the other end portion of the second coil 1132. In a modification, the upper elastic member 1310 may be integrally formed.

[0167] In another modification, both the upper elastic member 1310 and the lower elastic member 1320 may be integrally formed. In this case, the upper elastic member 1310 may be coupled to one end portion of the second coil 1132. The lower elastic member 1320 may be coupled to the other end portion of the second coil 1132. The upper elastic member 1310 may electrically connect one end portion of the second coil 1132 to the substrate 1120. The lower elastic member 1320 may electrically connect the other end portion of the second coil 1132 to the substrate 1120.

[0168] Hereinafter, automatic focus driving of a lens driving device according to a first embodiment of the present disclosure will be described with reference to the accompanying drawings.

[0169] Figures 17 to 19 1 is a view for explaining the automatic focus driving of the lens driving device according to the first embodiment of the present disclosure. Fig.17 is a cross-sectional view illustrating a state of a moving portion in an initial state in which no current is applied to the coil. Fig.18 is a cross-sectional view illustrating a state in which the moving portion moves upward in the optical axis direction when a forward current is applied to the coil. Fig.19 is a cross-sectional view illustrating a state in which the moving portion moves downward in the optical axis direction when a reverse current is applied to the coil.

[0170] In an initial position where no current is applied to the coil 1130 , the moving portion 1200 may be positioned at a position spaced apart from both the upper plate 1151 of the cover 1150 and the base 1140 .

[0171] When a forward current is applied to the coil 1130, the magnet 1220 may move upward along the optical axis direction due to the electromagnetic interaction between the coil 1130 and the magnet 1220 (see Fig.18 A). At this time, the holder 1210 and the lens can be moved upward along the optical axis direction together with the magnet 1220. Therefore, the distance between the lens and the image sensor can be changed, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0172] When a reverse current is applied to the coil 1130, the magnet 1220 may move downward in the optical axis direction due to the electromagnetic interaction between the coil 1130 and the magnet 1220 (see Fig.19 B). At this time, the holder 1210 and the lens can be moved downward along the optical axis direction together with the magnet 1220. Therefore, the distance between the lens and the image sensor can be changed, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0173] Meanwhile, during the movement process of the magnet 1220, the sensing portion of the driver IC 1160 may detect the magnetic field strength of the magnet 1220 to detect the movement amount or position of the magnet 1220. The movement amount or position of the magnet 1220 detected by the driver IC 1160 may be used for automatic focusing feedback control.

[0174] Hereinafter, a camera device according to a first embodiment of the present disclosure will be described with reference to the drawings.

[0175] Fig. 20 is an exploded perspective view of a camera device according to a first embodiment of the present disclosure.

[0176] The camera device 1010A may include a camera module.

[0177] The camera device 1010A may include a lens module 1020. The lens module 1020 may include at least one lens. The lens may be positioned at a position corresponding to the image sensor 1060. The lens module 1020 may include a lens and a lens barrel. The lens module 1020 may be coupled to the holder 1210 of the lens driving device 1010. The lens module 1020 may be coupled to the holder 1210 by screw coupling and / or adhesive. The lens module 1020 may move integrally with the holder 1210.

[0178] The camera device 1010A may include a filter 1030. The filter 1030 may block light of a specific frequency band passing through the lens module 1020 from being incident on the image sensor 1060. The filter 1030 may be arranged parallel to the xy plane. The filter 1030 may be arranged between the lens module 1020 and the image sensor 1060. The filter 1030 may be arranged on the sensor base 1040. Alternatively, the filter 1030 may be arranged on the base 1110. The filter 1030 may include an infrared filter. The infrared filter may block light in an infrared region from being incident on the image sensor 1060.

[0179] The camera device 1010A may include a sensor base 1040. The sensor base 1040 may be disposed between the lens driving device 1010 and the printed circuit board 1050. The sensor base 1040 may include a boss 141 on which the filter 1030 is disposed. An opening may be formed in a portion of the sensor base 1040 on which the filter 1030 is disposed so that light passing through the filter 1030 may be incident on the image sensor 1060. An adhesive member may couple or adhere the base 1310 of the lens driving device 1010 to the sensor base 1040. The adhesive member may also be used to prevent foreign matter from entering the interior of the lens driving device 1010. The adhesive member may include at least one of an epoxy resin, a thermosetting adhesive, and an ultraviolet curing adhesive.

[0180] The camera device 1010A may 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 may be disposed on the printed circuit board 1050. The sensor base 1040 may be disposed between the printed circuit board 1050 and the lens driving device 1010. The printed circuit board 1050 may be electrically connected to the lens driving device 1010. The image sensor 1060 may be disposed on the printed circuit board 1050. Various circuits, elements, control parts, etc. may be disposed on the printed circuit board 1050 to convert an image formed on the image sensor 1060 into an electrical signal and transmit the electrical signal to an external device.

[0181] The camera device 1010A may include an image sensor 1060. The image sensor 1060 may be configured to form an image by incident light passing through the lens and the filter 1030. The image sensor 1060 may be mounted on the printed circuit board 1050. The image sensor 1060 may be electrically connected to the printed circuit board 1050. For 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 may be arranged so that its optical axis is aligned with the optical axis of the lens. In other words, the optical axis of the image sensor 1060 and the optical axis of the lens may be aligned. The image sensor 1060 may convert light irradiated onto an 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), a MOS (metal oxide semiconductor), a CPD, and a CID.

[0182] The camera device 1010A may include a motion sensor. The motion sensor may be mounted on the printed circuit board 1050. The motion sensor may be electrically connected to the control portion 1080 through a circuit pattern provided on the printed circuit board 1050. The motion sensor may output rotation speed information due to movement of the camera device 1010A. The motion sensor may include a dual-axis or tri-axis gyro sensor or an angular velocity sensor.

[0183] The camera device 1010A may include a control portion 1080. The control portion 1080 may be disposed on the printed circuit board 1050. The control portion 1080 may be electrically connected to the coil 1330 of the lens driving device 1010. The control portion 1080 may individually control the direction, intensity, amplitude, etc. of the current supplied to the coil 1330. The control portion 1080 may control the lens driving device 1010 to perform an autofocus function and / or an image stabilization function. In addition, the control portion 1080 may perform autofocus feedback control and / or image stabilization feedback control for the lens driving device 1010.

[0184] The camera device 1010A may include a connector 1090. The connector 1090 may be electrically connected to the printed circuit board 1050. The connector 1090 may include a port for electrically connecting to an external device.

[0185] Hereinafter, a triple-camera device according to a first embodiment of the present disclosure will be described with reference to the accompanying drawings.

[0186] Fig.21 is a conceptual diagram illustrating a three-camera device according to a first embodiment of the present disclosure.

[0187] like Fig.21As shown in (a) of FIG. 1 , the three-camera device 1010A may include a first camera device 1011, a second camera device 1012, and a third camera device located between the first camera device 1011 and the second camera device 1012. For example, the third camera device may include the lens driving device 1010 described above.

[0188] The first camera device 1011 may be a main OIS camera device. The first camera device 1011 may include an OIS driving part and an AF driving part. The second camera device 1012 may be a zoom camera device. The second camera device 1012 may include an AF driving part, a zoom driving part, and an OIS driving part. The AF driving part and the zoom driving part may be formed as a single driving part. The third camera device may be an ultra-wide camera device. The third camera device may be a wide-angle camera device.

[0189] The first camera device 1011 may include three driving magnets 1011-1. The driving magnets 1011-1 of the first camera device 1011 may be disposed at a side other than a side adjacent to the third camera device.

[0190] The second camera device 1012 may include five driving magnets 1012-1. The second camera device 1012 may include three OIS driving magnets for OIS driving and two driving magnets for AF driving and zoom driving.

[0191] The third camera device may include two magnets 1220. The magnets 1220 of the third camera device may be disposed to face two sides except for the sides adjacent to the first camera device 1011 and the second camera device 1012. In this way, magnetic interference of the first camera device 1011 and the second camera device 1012 to the third camera device may be minimized.

[0192] The cover 1150 of the third camera device may include four side panels. The side panels 1152 of the cover 1150 may include a first side panel and a second side panel disposed opposite to each other and a third side panel and a fourth side panel disposed opposite to each other. The first side panel may be disposed opposite to the first camera device 1011, and the second side panel may be positioned opposite to the second camera device 1012. The magnet 1220 of the third camera device may include a first magnet 1221 positioned facing the third side panel and a second magnet 1222 positioned facing the fourth side panel.

[0193] like Fig.21 As shown in (b), the camera device 1010A′ may include a first camera device 1011 and a third camera device. In this case, the third camera device may include a lens driving device 1010.

[0194] like Fig.21As shown in (c), the camera device 1010A" may include a second camera device 1012 and a third camera device. At this time, the third camera device may include a lens driving device 1010.

[0195] like Fig.21 As shown in (d), the camera device 1010A'' may include a first camera device 1011, a third camera device, and a second camera device 1012 disposed between the first camera device 1011 and the third camera device. At this time, the third camera device may include a lens driving device 1010.

[0196] Fig.21 The embodiments shown in (a) to (d) are examples, and the lens driving device 1010 according to the present embodiment may be included in a camera group provided with a dual camera, a triple camera or more cameras. In addition, the arrangement of the first camera device to the third camera device is not limited to the embodiments shown, and may be arranged in various ways by changing the order.

[0197] Hereinafter, an optical device according to a first embodiment of the present disclosure will be described with reference to the accompanying drawings.

[0198] Fig. 22 is a perspective view illustrating an optical device according to a first embodiment of the present disclosure, and Fig.23 is a perspective view illustrating an optical device according to a modified example.

[0199] The optical device 1001 may include at least one of a mobile phone, a cellular phone, a portable terminal, a mobile terminal, a smart phone, a smart board, a portable smart device, a digital camera, a laptop computer, a digital broadcast terminal, a PDA (personal digital assistant), a PMP (portable multimedia player), and a navigation device. The optical device 1001 may include any device for capturing an image or a picture.

[0200] The optical device 1001 may include a body 1020. The optical device 1001 may include a camera device 1010A. The camera device 1010A may be disposed in the body 1020. The camera device 1010A may capture an object. The optical device 1001 may include a display. The display may be disposed in the body 1020. The display may output one or more of an image and a video captured by the camera device 1010A. The display may be disposed on a first surface of the body 1020. The camera device 1010A may be disposed on one or more of the first surface of the body 1020 and a second surface opposite to the first surface. Fig. 22 As shown in , camera device 1010A may have three cameras positioned in a vertical direction. Fig.23As shown in , camera device 1010A-1 may have three cameras arranged in a horizontal direction.

[0201] For ease of explanation, the lens driving device according to the present embodiment is described using a Cartesian coordinate system (x, y, z), but other coordinate systems may be used to describe it, and the present embodiment is not limited thereto. In each figure, the x-axis and the y-axis refer to directions perpendicular to the z-axis, i.e., the optical axis direction, and the z-axis direction, which is the optical axis or a direction parallel to the optical axis, may be referred to as a "first direction", the x-axis direction may be referred to as a "second direction", and the y-axis direction may be referred to as a "third direction".

[0202] In addition, for example, the optical axis may be an optical axis of a lens mounted on a lens barrel coupled to the coil frame. Alternatively, for example, the optical axis may be an axis perpendicular to the imaging area of ​​the image sensor and passing through the center of the imaging area. The first direction may be a direction perpendicular to the imaging area of ​​the image sensor. In addition, for example, the optical axis direction may be a direction parallel to the optical axis.

[0203] “Auto focusing” refers to automatically focusing an image of a subject on a surface of an image sensor. The lens driving device according to an embodiment may perform an auto focusing operation of moving an optical module composed of at least one lens in a first direction.

[0204] Furthermore, in the following description, "terminal" may be replaced with a pad, an electrode, a conductive layer, or a bonding portion.

[0205] Hereinafter, the lens driving device may be expressed as a "voice coil motor", a "lens moving device", a "lens moving part" or an "actuator".

[0206] The following camera device may be alternatively referred to as a “camera module”, “camera assembly”, “camera portion”, “camera”, “imaging device” or “lens moving device”.

[0207] Fig.24 is an exploded perspective view illustrating a lens driving device 100 according to a second embodiment of the present disclosure, Fig.25 The diagram does not include Fig.24 A perspective view of the lens driving device 100 with a cover member 300, Fig.26 is an exploded perspective view showing a coil frame and a housing, Fig.27a 1 is a first perspective view illustrating the coil former 110 , the coil 120 , the sensing magnet 180 , and the balancing magnet 185 , Figure 27b is a second perspective view illustrating the coil former 110, the coil 120, the sensing magnet 180 and the balancing magnet 185, Fig.28a is a first perspective view illustrating the housing 140, the magnet 130, the position sensor 170, and the capacitor 195, and Fig.28b is a second perspective view illustrating the housing 140, the magnet 130, the position sensor 170, and the capacitor 195, Fig.29 is a plan view illustrating the upper elastic member 150, Fig.30 is a plan view illustrating the lower elastic member 160, Fig.31 1 is a combined diagram of the lower elastic member 160, the first coil portion 120A, the second coil portion 120B and the circuit board 190, Fig.32 is a perspective view illustrating a circuit board 190, a position sensor 170, a capacitor 195, a magnet 130, and a coil 120, Fig.33 is a perspective view illustrating the circuit board 190, the lower elastic member 160 and the base 210, Fig.34a It is illustrated in Figure 2 A cross-sectional view of the lens driving device 100 in the AB direction, Fig.34b It is illustrated in Figure 2 A cross-sectional view of the lens driving device 100 in the CD direction, and Fig.34c It is illustrated in Figure 2 1 is a cross-sectional view of the lens driving device 100 in the EF direction.

[0208] Reference Figure 24 to Figure 34c The lens driving device 100 includes a housing 140 , a coil frame 110 , a coil 120 , a magnet 130 , a sensing magnet 180 and a position sensor 170 .

[0209] The lens driving device 100 may include an elastic member supporting the bobbin 110 with respect to the housing 140. The elastic member may include at least one of an upper elastic member 150 and a lower elastic member 160.

[0210] The lens driving device 100 may further include a circuit board 190 electrically connected to the position sensor. In addition, the lens driving device 100 may further include a balancing magnet 185. In addition, the lens driving device 100 may further include a capacitor 195. In addition, the lens driving device 100 may further include a cover member 300 and a base 210.

[0211] The bobbin 110 is disposed in the housing 140 , and may move in the optical axis OA direction or the first direction (eg, the Z-axis direction) through electromagnetic interaction between the coil 120 and the magnet 130 .

[0212] The lens module 400 may be coupled or mounted on the bobbin 110. The lens module 400 may include at least one of a lens or a lens barrel. The bobbin 110 is disposed in the housing 140. The bobbin 110 may include an opening 101, and the lens module 400 may be coupled or mounted to the opening 101. For example, the opening 101 of the bobbin 110 may be hollow or through-hole, and its shape may be, but is not limited to, circular, elliptical, or polygonal.

[0213] The bobbin 110 may include a first coupling portion disposed on an upper portion, an upper surface, or an upper end portion, and coupled and fixed to the upper elastic member 150 (e.g., the first inner frame 151). The bobbin 110 may include a second coupling portion disposed on a lower portion, a lower surface, or a lower end portion, and coupled and fixed to the lower elastic member 160 (e.g., the second inner frame 161).

[0214] For example, the first and second coupling portions of the bobbin 110 are planar, but in other embodiments, the first and second coupling portions may be protruding or grooved.

[0215] The bobbin 110 may include a first escape groove 112a, which is provided in an area of ​​the upper surface corresponding to, opposite to, or overlapping with the first frame connection portion 153 of the upper elastic member 150 in the optical axis direction. For example, the first escape groove 112a may be in a shape recessed from the upper surface of the bobbin 110. In addition, the bobbin 110 may include a second escape groove 112b in an area of ​​the lower surface corresponding to, opposite to, or overlapping with the second frame connection portion 163 of the lower elastic member 160 in the optical axis direction. For example, the second escape groove 112b may be in a shape recessed from the lower surface of the bobbin 110.

[0216] When the coil frame 110 moves along the first direction through the first avoidance groove 112a and the second avoidance groove 112b of the coil frame 110, the spatial interference between the first frame connection part 153 and the second frame connection part 163 and the coil frame 110 can be eliminated, and therefore, the first frame connection part 153 and the second frame connection part 163 can be easily elastically deformed.

[0217] The bobbin 110 may include a plurality of side surfaces or outer surfaces. The bobbin 110 may include side portions and corner portions. For example, the bobbin 110 may include first to fourth side portions 110A to 110D and first to fourth corner portions 115A to 115D.

[0218] For example, first and second side portions 110A, 110B of bobbin 110 may be positioned to face or be opposite to each other with respect to an optical axis disposed therebetween, and third and fourth side portions 110C, 110D of bobbin 110 may be positioned to face or be opposite to each other with respect to an optical axis OA disposed therebetween.

[0219] For example, the first side portion 110A and the second side portion 110B of the coil frame 110 can be positioned to face each other or opposite to each other in a second direction (e.g., in the X-axis direction), and the third side portion 110C and the fourth side portion 110D of the coil frame 110 can be positioned to face each other or opposite to each other in a third direction (e.g., in the Y-axis direction).

[0220] For example, each of the first to fourth corner portions 115A to 115D may be disposed between two adjacent side portions of the bobbin 110. The side surfaces or outer surfaces of the first to fourth side portions 110A to 110D of the bobbin 110 may also be expressed as “first to fourth side surfaces” or “first to fourth outer surfaces” of the bobbin 110.

[0221] The bobbin 110 may include at least one seating portion 105 for arranging or seating the coil 120. The seating portion 105 may be a groove recessed from the outer surface of the bobbin 110. For example, the bobbin 110 may include a first seating portion 105A for arranging or seating the first coil portion 120A and a second seating portion 105B for arranging or seating the second coil portion 120A.

[0222] For example, the first seating portion 105A may be provided on the first side portion 110A of the bobbin 110, and the second seating portion 105B may be positioned on the second side portion 110B of the bobbin 110. For example, the first seating portion 105A may be positioned close to one corner portion (e.g., 115D) of two corner portions (e.g., 115B, 115D) of the bobbin 110 positioned to face each other or to be opposite to each other with respect to the optical axis interposed therebetween, and the second seating portion 105B may be positioned close to the other corner portion (e.g., 115B) of the two corner portions (e.g., 115B, 115D) of the bobbin 110 positioned to face each other or to be opposite to each other with respect to the optical axis interposed therebetween.

[0223] The bobbin 110 may include a protrusion 117 for engaging with the hollow portion 12A of the coil 120. The protrusion 117 may be positioned within the seating portion 105. For example, the protrusion 117 may protrude from the bottom surface of the seating portion 105. For example, the protrusion 117 may protrude in a direction perpendicular to the optical axis.

[0224] For example, the coil frame 110 may include a projection 117 disposed on two side portions facing each other or opposite to each other. For example, the coil frame 110 may include two projections 117, each of which may be inserted into or coupled to the hollow portion 12A of the first coil portion 120A and the second coil portion 120B. The projection 117 may have a cylindrical, polyhedral or cross shape, and may have various shapes that may be coupled to the hollow portion of the coil portion. In other embodiments, the projection 117 may be omitted. For example, the number of projections disposed on a side of the coil frame 110 and coupled to the hollow portion of a coil portion may be one or more.

[0225] In another embodiment, the coil 120 may be wound around the outer surface of the bobbin 110 in a clockwise or counterclockwise direction with respect to the optical axis.

[0226] In another embodiment, the bobbin 110 may be fixed to the outer surface of the bobbin 110 without a seating portion for disposing the coil 120 .

[0227] In addition, in order to dispose or seat the sensing magnet 180, the bobbin 110 may include a groove 18A disposed on the first side portion 110A of the bobbin 110. For example, the groove 18A may include an opening to the upper surface of the bobbin 110 to facilitate the installation of the sensing magnet.

[0228] In addition, in order to dispose or seat the balancing magnet 185 , the bobbin 110 may include a groove 19B disposed on the second side portion 110B of the bobbin 110 .

[0229] although Fig.26 Although not shown in the drawings, the bobbin 110 may include a first stopper protruding upward from the upper surface. In addition, the bobbin 110 may include a second stopper protruding downward from the lower surface. The first stopper and the second stopper of the bobbin 110 may 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 when the bobbin 110 moves beyond a specified range due to an external impact or the like when the bobbin 110 moves in the first direction for autofocusing.

[0230] In another embodiment, the covering member 300 may include a boss that protrudes from the upper plate 301 toward the coil frame 110 and corresponds to the first avoidance portion 112a of the coil frame 110 in the optical axis direction, faces the first avoidance portion 112a, or overlaps with the first avoidance portion 112a, and the boss of the covering member 300 can be used as a stopper.

[0231] The bobbin 110 may include bosses 113A, 113B protruding in a direction perpendicular to the optical axis. For example, the bosses 110 may protrude from the outer surface of the bobbin 110. For example, the bobbin 110 may include bosses 113A, 113B protruding 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 bosses 113A, 113B may be disposed in the groove 144 of the housing 140, and may prevent the bobbin 110 from rotating or tilting beyond a preset range. In addition, in an embodiment in which a step portion is formed in the groove portion 144 of the housing 140 to correspond to the bosses 113A, 113B, face the bosses 113A, 113B, or overlap with the bosses 113A, 113B, the bosses 113A, 113B of the bobbin 110 and the step portion of the housing 140 may be used as a stopper to prevent the bobbin 110 from moving downward beyond a preset range.

[0232] Reference Figure 27b , the bobbin 110 may include openings 118A, 118B, which lead to the lower surface of the bobbin 110, and through which one end portion and the other end portion of the coil portions 120A, 120B pass. For example, the bobbin 110 may include a first opening 118A through which one end portion and the other end portion of the first coil portion 120A pass, and a second opening 118B through which one end portion and the other end portion of the second coil portion 120B pass. For example, the first opening 118A may be in communication with the first seating portion 105A, and the second opening 118B may be in communication with the second seating portion 105B.

[0233] The coil 120 may be disposed, coupled or fixed to the bobbin 110. For example, the coil 120 may be disposed on an outer surface of the bobbin 110. The coil 120 may be a drive coil that electromagnetically interacts with the magnet 130. The coil 120 may be disposed within the seating portion 105 of the bobbin 110 or coupled to the seating portion 105.

[0234] A driving signal (e.g., a driving current or a driving voltage) may be applied to the coil 120 to generate an electromagnetic force through interaction with the magnet 130. For example, the driving signal applied to the coil 120 may be a DC signal, but is not limited thereto, and may be an AC signal, or may include a DC signal and an AC signal.

[0235] The AF movable portion may be moved in a first direction by an electromagnetic force generated by interaction between the coil 120 and the magnet 130 .

[0236] By controlling the strength and / or polarity (e.g., the direction of current flow) of the drive signal applied to the coil 120, thereby adjusting the strength and / or direction of the electromagnetic force generated by the interaction between the coil 120 and the magnet 130, the movement of the AF movable part along the first direction can be controlled, thereby performing an autofocus function.

[0237] The AF movable part may be driven unidirectionally or bidirectionally by the electromagnetic force generated by the interaction between the coil 120 and the magnet 130. Here, unidirectional driving means that the AF movable part moves unidirectionally, for example, in an upward direction (for example, in an upward direction (+Z axis direction)) based on the initial position of the AF movable part. Bidirectional driving means that the AF movable part moves in two directions (for example, in an upward direction or a downward direction) based on the initial position of the AF movable part.

[0238] For example, the initial position of the bobbin 110 may be an initial position of the AF movable part (e.g., the bobbin) in a state where no power or a driving signal is applied to the coil 120. Alternatively, the initial position of the bobbin 110 may be a position where the AF movable part is disposed when the upper elastic member 150 and the lower elastic member 160 are elastically deformed only by the weight of the AF movable part.

[0239] In addition, the initial position of bobbin 110 may be a position where the AF movable portion is disposed when gravity acts from bobbin 110 toward base 210 or vice versa.

[0240] The AF movable part may include a bobbin 110 and a component coupled to or mounted on the bobbin 110 and moving together with the bobbin 110. For example, the AF movable part may include at least one of the bobbin 110, the coil 120, the sensing magnet 180, and the balancing magnet 185. Alternatively, when the AF movable part is mounted with the lens module 400, the AF movable part may include the lens module 400.

[0241] The coil 120 may have a closed loop shape having a hollow center, for example, a ring shape.

[0242] For example, the coil 120 may include a first coil portion 120A and a second coil portion 120B. For example, the first coil portion 120A may be disposed on a first side portion 110A of the bobbin 110 , and the second coil portion 120B may be disposed on a second side portion 110B of the bobbin 110 .

[0243] For example, the first coil part 120A may be disposed on a first side or outer side of the bobbin 110 , and the second coil part 120B may be disposed on a second side or outer side of the bobbin 110 facing the first side of the bobbin 110 .

[0244] The coil 120 may not be disposed on the third side portion 110C (or the third side of the coil frame) and the fourth side portion 110D (or the fourth side of the coil frame 110) of the coil frame 110. For example, in the direction from the third side portion 110C of the coil frame 110 to the fourth side portion 110D, the third side portion 110C and the fourth side portion 110D of the coil frame 110 may not overlap with the coil 120.

[0245] For example, the first coil portion 120A may be in an annular shape wound clockwise or counterclockwise about 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). In addition, the second coil portion 120B may be in an annular shape wound clockwise or counterclockwise about 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).

[0246] In another embodiment, each of the first coil portion 120A and the second coil portion 120B can be implemented in the form of a coil ring, and the first coil portion 120A can be attached to or fixed to the first side portion 110A (or the seating portion 105A) of the coil frame 110 by an adhesive member, and the second coil portion 120B can be attached to or fixed to the second side portion 110B (or the seating portion 105B) of the coil frame 110 by an adhesive.

[0247] The coil 120 may be electrically connected to at least one of the upper elastic member 150 or the lower elastic member 160. The coil 120 may be electrically connected to the circuit board 190 through at least one of the upper elastic member 150 and the lower elastic member 160.

[0248] The first coil portion 120A and the second coil portion 120B may be connected to each other in series.

[0249] For example, the first coil portion 120A and the second coil portion 120B may be connected in series through at least one of the upper elastic member 150 or the lower elastic member 160 .

[0250] For example, at an initial position of the bobbin 110 , the coil 120 disposed on the bobbin 110 may face or overlap the magnet 130 in a direction passing through the optical axis and perpendicular to the optical axis (eg, a second direction, an X-axis direction).

[0251] In addition, for example, at the initial position of the bobbin 110, at least a portion of the sensing magnet 180 disposed on the bobbin 110 may face the position sensor 170 or overlap with the position sensor 170 in a direction passing through the optical axis and perpendicular to the optical axis (e.g., the second direction, the X-axis direction). In another embodiment, at the initial position of the bobbin 110, the sensing magnet 180 may not overlap with the position sensor 170 in a direction passing through the optical axis and perpendicular to the optical axis (e.g., the second direction, the X-axis direction).

[0252] The sensing magnet 180 may 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 18A of the bobbin 110. For example, at least a portion of the sensing magnet 180 may be exposed from the groove 18A. For example, a portion of one side portion of the sensing magnet 180 may be exposed to the outer surface and / or lower surface of the bobbin 110, but in other embodiments, a portion of one side portion of the sensing magnet 180 may not be exposed to the outer surface of the bobbin 100.

[0253] The sensing magnet 180 may be a bipolar magnetized 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 between the first magnet portion and the second magnet portion. The description of the bipolar magnetized magnet of the magnet 130 described below may be applied to the sensing magnet 180 or used in combination with the sensing magnet 180.

[0254] In another embodiment, the sensing magnet 180 may be a monopolar magnet having one N pole and one S pole. For example, the sensing magnet 180 may be a monopolar magnet having an N pole on the upper surface and an S pole on the lower surface. In another embodiment, the sensing magnet 180 may be a monopolar magnet having an S pole on the upper surface and an N pole on the lower surface.

[0255] Alternatively, for example, the sensing magnet 180 may be disposed such that the boundary surface of 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 another embodiment, the boundary surface of the N pole and the S pole may be parallel to the optical axis.

[0256] The sensing magnet 180 can move along the optical axis direction OA together with the coil frame 110 through the electromagnetic force generated by the interaction between the coil 120 and the magnet 130, and the position sensor 170 can detect the movement of the sensing magnet 180 along the optical axis direction, or detect the magnetic field strength of the sensing magnet 180 and output an output signal according to the detection result. For example, the control part 830 of the camera device 200 or the control part 780 of the terminal 200A can detect the displacement of the coil frame 110 in the optical axis direction based on the output signal output by the position sensor 170.

[0257] The balancing magnet 185 may be disposed on the bobbin 110. The balancing magnet 185 may be disposed on the second side portion 110B of the bobbin 110. For example, the sensing magnet 180 and the first coil portion 120A may be disposed on the first side portion 110A of the bobbin 110. In addition, the balancing magnet 185 and the second coil portion 120B may be disposed on the second side portion 110B of the bobbin 110.

[0258] The balancing magnet 185 can offset the magnetic influence of the sensing magnet 180 on the coil 120 and / or the magnet 130, and can balance the weight of the AF movable part, so that the embodiment can perform more accurate AF driving. For example, the magnet 130 can be represented by replacing any one of the first to third magnets, the sensing magnet 180 can be represented by replacing another magnet of the first to third magnets, and the balancing magnet 185 can be represented by replacing the remaining other magnet of the first to third magnets.

[0259] The housing 140 accommodates the AF movable part such as the bobbin 110 inside.

[0260] The housing 140 may support the magnet 130. The housing 140 may have a cylindrical shape including an opening 201 for receiving the bobbin 110. For example, the housing 140 may include a plurality of side portions 141A to 141D surrounding the opening 201 and a plurality of corner portions 142A to 142D.

[0261] For example, the opening 210 may be a through hole or a hollow portion penetrating the housing 140 along the optical axis. For example, the opening 210 may be polygonal (eg, square or octagonal) or circular, but in other embodiments, the opening 210 may have various shapes suitable for accommodating the coil former 110.

[0262] For example, the housing 140 may include first to fourth side portions 141A to 141D corresponding to, opposite to, or overlapping the first to fourth side portions 110A to 110D of the bobbin 110. In addition, for example, the housing 140 may include first to fourth corner portions 142A to 142D corresponding to, opposite to, or overlapping the first to fourth corner portions 115A to 115D of the bobbin 110.

[0263] For example, the housing 140 may include first to fourth side portions 141A to 141D spaced apart from each other, a first corner portion 142A positioned between the first side portion 141A and the third side portion 141C, a second corner portion 142B positioned between the second side portion 141B and the third end portion 141C, a third corner portion 142C positioned between the second side portion 141B and the fourth side portion 141D, and a fourth corner portion 142D positioned 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 positioned between the first side portion 141B and the second side portion 141B of the housing 140.

[0264] The housing 140 may include a first side surface (or first outer surface) corresponding to the first side surface (or first outer surface) of the bobbin 110, a second side surface (or second outer surface) corresponding to the second surface (or second outer surface) of the bobbin 110, a third surface (or third outer surface) corresponding to the third side surface (or third outer surface) of the bobbin 110, and a fourth side surface (or fourth outer surface) corresponding to the fourth surface (or fourth outer surface) of the bobbin 110. The third surface and the fourth surface (or the third outer surface and the fourth outer surface) of the housing 140 may be disposed between the first side surface and the second side surface (or the first outer surface and the second outer surface) of the housing 140.

[0265] For example, each of the first to fourth side surfaces (or first to fourth outer surfaces) of the shell 140 may be a corresponding side surface or outer surface of any one of the first to fourth side portions 141A to 141D of the shell 140 .

[0266] For example, each of the first to fourth side portions 141A to 141D of the housing 140 may correspond to, face, or overlap one of the four side panels of the cover member 300. The corresponding side portions of the housing and the side panels of the cover member 300 may be disposed in parallel with each other.

[0267] The housing 140 may include a seating portion 17A for arranging or placing the magnet 130. For example, the housing 140 may include a first seating portion 17A for arranging, installing or coupling the first magnet portion 130A and a second seating portion 17B for arranging, installing or coupling the second magnet portion 130B.

[0268] For example, the first fixing portion 17A may be arranged or disposed on the first side portion 141A of the housing 140 , and the second fixing portion 17B may be arranged or disposed on the second side portion 141B of the housing 140 .

[0269] For example, the seating portion 17 may be in the form of an opening or through hole penetrating the side portions (e.g., 141A, 141B) of the housing 140. In another embodiment, the seating portion 17 may be in the form of a groove or recess. In another embodiment, the seating portion of the housing may be in a flat shape rather than a groove shape.

[0270] For example, the magnet 130 may be coupled or fixed to the seating portion 17 of the housing 140 by an adhesive.

[0271] To prevent direct collision with the inner surface of the upper plate of the cover member 300, the housing 140 may include a stopper 145 disposed or provided on an upper portion, upper surface or upper end. Here, the stopper 145 may be expressed as a "boss" or "protrusion".

[0272] For example, the stopper 145 may be disposed on an upper surface of at least one of the first to fourth corner portions 142A to 142B of the housing 140. In another embodiment, 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.

[0273] For example, the stopper 145 of the housing 140 may contact the inner surface of the upper plate of the cover member 300. In other embodiments, the stopper of the housing and the inner surface of the upper plate of the cover may not contact each other.

[0274] The housing 140 may include at least one first coupling portion 143 disposed on an upper portion, upper surface, or upper end of the housing 140 for coupling with the upper elastic member 150 (eg, the hole 152a of the first outer frame 152). Fig.26 In the embodiment, the first coupling portion 143 of the housing 140 may have a protruding shape, but in other embodiments, the first coupling portion 143 of the housing 140 may have a groove or a flat shape.

[0275] In addition, the housing 140 may include at least one second coupling portion 147 disposed on a lower portion, a lower surface, or a lower end of the housing 140 for coupling with the lower elastic member 160 (eg, the hole 162a of the second outer frame 162). Fig.28b In the embodiment, the second coupling portion 147 has a protruding shape, but in other embodiments, the second coupling portion of the housing 140 may have a groove or a flat shape.

[0276] In order to prevent a lower surface or bottom of the housing 140 from colliding with a base 210 described later, the housing 140 may be provided with at least one stopper (not shown) protruding from a lower portion, a lower surface, or a lower end.

[0277] The housing 140 may include a groove 148 or a guide groove corresponding to, opposite to, or overlapping the boss 216 of the base 210. For example, the groove 148 may be provided on a 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.

[0278] The housing 140 may be coupled to the base 210. For example, a lower portion, a lower surface, or a lower end of the housing 140 may be coupled to the base 210. For example, a lower portion, a lower surface, or a lower end of the housing 140 may be coupled to the boss 216 of the base 210. For example, the groove 148 of the housing 140 and the boss 216 of the base 210 may be coupled by an adhesive member.

[0279] The housing 140 may include a seating portion 16A for disposing, seating, or accommodating the position sensor 170 and the capacitor 195. For example, the seating portion 16A may be disposed on a first side portion 141A of the housing 140. For example, the seating portion 16A may be located between the seating portion 17A and the corner portion 142A of the housing 140.

[0280] For example, the seating portion 16A is in the form of an opening or through hole penetrating the first side portion 141A of the housing 140, but in another embodiment, the seating portion 16A may be in the form of a groove. For example, the seating portion 16A may have a shape corresponding to or matching the position sensor 190.

[0281] exist Fig.26 In the embodiment of the present invention, the seating portion 16A houses the position sensor 170 and the capacitor 195 together, but in other embodiments, the housing 140 may include a separate seating portion for housing each of the position sensor 170 and the capacitor 195.

[0282] The housing 140 may include a groove 25 for disposing, seating or accommodating the circuit board 190. For example, the groove 25 may be disposed 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.

[0283] The housing 140 may include a structure on the first side portion 141A for coupling with the circuit board 190. For example, the housing 140 may 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 may be coupled with 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.

[0284] 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 may include a structure coupled to the housing 140. For example, the structure coupling the housing 140 and the circuit board 190 to each other may be such that when one side is a protrusion, the other side is a hole or a groove.

[0285] The magnet 130 may generate an electromagnetic force through interaction with the coil 120 , and may be a driving magnet that may move the bobbin 110 through the electromagnetic force.

[0286] The magnet 130 may be disposed, coupled or fixed to the housing 140 .

[0287] The magnet 130 may include two magnet portions 130A, 130B disposed on two side portions of the housing 140 that are opposite to each other about a middle optical axis.

[0288] The magnet 130 may include a first magnet portion 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.

[0289] For example, the first magnet portion 130A may be disposed on a first side surface or a first outer surface of the housing 140 , and the second magnet portion 130B may be disposed on a second side surface or a second outer surface of the housing 140 .

[0290] For example, the first magnet portion 130A may be disposed in the first seating portion 17A of the housing 140 , and the second magnet portion 130B may be disposed in the second seating portion 17B of the housing 140 .

[0291] In another embodiment, the side portions 141A, 141B of the shell 140 may not have the formed seating portions 17A, 17B, and the first magnet portion 130A and the second magnet portion 130B may be disposed on the outer or inner surface of the first side portion 141A and the second side portion 141B of the shell 140.

[0292] The first magnet portion 130A may be positioned closer to one corner portion 142D of the two corner portions 142A, 142D adjacent to the first side portion 141A of the housing 140. For example, the first magnet portion 130A may be positioned closer to the fourth corner portion 142D of the housing 140 than to the first corner portion 142A of the housing. This is to ensure a space for arranging the position sensor 170 and the capacitor 195 on the first side portion 141A of the housing 140.

[0293] The second magnet portion 130B may be closer to one corner portion 142B of the two corner portions 142B, 142C adjacent to the second side portion 141B of the housing 140. For example, the second magnet portion 130B may be positioned closer to the second corner portion 142B than to the third corner portion 142C of the housing 140. This is to arrange the second magnet portion 130B and the first magnet portion 130A symmetrically about the optical axis and to prevent the bobbin 110 from being accidentally tilted during the AF operation, thereby ensuring the reliability of the AF operation of the bobbin 110.

[0294] For example, the fourth corner portion 142D of the housing 140 positioned close to the first magnet portion 130A and the second corner portion 142B of the housing 140 positioned close to the second magnet portion 130B may face each other or be positioned on opposite sides with respect to the optical axis therebetween.

[0295] Each of the first and second magnet portions 130A, 130B may have a generally polyhedral shape, such as a cuboid, but in other embodiments may have various shapes suitable for generating electromagnetic force by interacting with the coil 120 .

[0296] Each of the first magnet portion 130A and the second magnet portion 130B may be a dipole magnetized magnet or a quadrupole magnet including two N poles and two S poles. For example, each of the first magnet portion 130A and the second magnet portion 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.

[0297] For example, each of the first magnet portion 130A and the second magnet portion 130B may be implemented using ferrite, alnico, rare earth magnets, or the like.

[0298] For example, the first magnet portion and the second magnet portion can be positioned to face each other or to be positioned on opposite sides with respect to the optical axis direction, wherein there is a partition wall between the first magnet portion and the second magnet portion. For example, the first magnet portion and the second magnet portion can be positioned so that their 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 can be positioned to face the coil 120, but in another embodiment, the S pole of the first magnet portion and the N pole of the second magnet portion can be positioned to face the coil 120.

[0299] In other embodiments, the first magnet portion and the second magnet portion may be positioned to face each other or on opposite sides in a direction perpendicular to the optical axis, with a partition wall between the first magnet portion and the second magnet portion.

[0300] For example, the first magnet portion may include an N pole, an S pole, and a first boundary surface between the N pole and the S pole. In this case, the first boundary surface may include a substantially non-magnetic portion and a very small polarity segment, and may be a naturally occurring portion to form a magnet consisting of one N pole and one S pole.

[0301] For example, the second magnet portion may include an N pole, an S pole, and a second boundary surface between the N pole and the S pole. In this case, the second boundary surface may include a substantially nonmagnetic portion, a section with very little polarity, and may be a naturally occurring portion to form a magnet consisting of one N pole and one S pole.

[0302] The partition wall separates or isolates the first magnetic portion from the second magnetic portion and may be a substantially non-magnetic portion having a small polarity. For example, the baffle may be a non-magnetic material or air, etc. The baffle may be referred to as a "neutral region" or "intermediate region".

[0303] The partition wall is a portion artificially formed when the first magnet portion and the second magnet portion are magnetized, and the width of the partition wall may be greater than the width of each of the first boundary surface and the second boundary surface. Here, the width of the partition wall may be the length of the non-magnetic partition wall in the direction from the first magnet portion to the second magnet portion.

[0304] In the present embodiment, the magnet 130 includes four magnets, but is not limited thereto. In another embodiment, the number of the 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 may include a curved surface, an inclined surface, or a tapered portion. For example, the first surface 13a of the magnet 130 may be the outer surface of the coil frame 110-1 or / and the surface facing the coil 120.

[0305] In another embodiment, each of the first magnet portion 130A and the second magnet portion 130B may be a monopolar magnetized magnet having two different polarities and a boundary surface naturally formed between the different polarities. For example, each of the first magnet portion 130A and the second magnet portion 130B may be a monopolar magnetized magnet having a first surface facing the coil 120 as an N pole and a second surface opposite to the first surface as an S pole, but is not limited thereto, and the N pole and the S pole may be opposite.

[0306] Reference Fig.32 , the tapered surface or inclined surface 35 may be provided at one end portion of the first magnet portion 130A. For example, the tapered surface or inclined surface 35 may have a chamfered shape at one edge of one end portion of the first magnet portion 130B. For example, the tapered surface or inclined surface 35 may be formed at one end portion of the first magnet portion 130A adjacent to the position sensor 170. In addition, the tapered surface or inclined surface 35 may be formed at an edge of one end portion of the first magnet portion 130A adjacent to the sensing magnet 180.

[0307] The reason for forming the tapered surface or inclined surface 35 on the first magnet portion 130A is to reduce the magnetic interference between the sensing magnet 180 and the first magnet portion 130A. In other words, by forming the tapered surface or inclined surface 35, the spacing distance between the first magnet portion 130A and the sensing magnet 180 can be increased, thereby reducing the magnetic interference between the sensing magnet 180 and the first magnet portion 130A.

[0308] By reducing the influence of the magnetic field of the sensing magnet 180 on the first magnet portion 130A, the present embodiment can suppress the influence of the electromagnetic force generated by the interaction between the first coil portion 120A and the first magnet portion 130A caused by the magnetic field of the sensing magnet 180, and can perform precise AF drive, and can improve the reliability of AF drive.

[0309] In addition, by reducing the influence of the magnetic field of the first magnet part 130A on the sensing magnet 180, the present embodiment can reduce the influence of the output of the position sensor 170 caused by the magnetic field of the first magnet part 130, and can perform precise AF feedback drive, and can further improve the reliability of AF drive.

[0310] For example, the first magnet portion 130A may include a first surface 13A facing the bobbin 110 (or the first coil portion 120A), a second surface 13B positioned opposite to the first surface 13A, a third surface 13C positioned between the first surface 13A and the second surface 13B and adjacent to the position sensor 170, and a fourth side surface 14D positioned opposite to the third surface 13C. In addition, the first magnet portion 130A may further include an upper surface in contact with the upper end portions or upper side portions of the first to fourth side surfaces 13A to 13D and a lower surface in contact with the lower end portions or lower side portions of the first to fourth side surfaces 13A to 13D.

[0311] For example, the third surface 13C may include a first surface 13C1 in contact with the second surface 13B and a second surface 13C2 positioned between the first surface 13A and the first surface 13C1 .

[0312] For example, the first surface 13A and the second surface 13B of the first magnet part 130A may be parallel to each other. For example, the first surface 13C1 of the third surface 13C and the fourth surface 13D of the first magnet part 130B may be parallel to each other. For example, the internal angle θ between the first surface 13C1 and the second surface 13C2 may be an obtuse angle. For example, the internal angle θ may be 120 degrees to 160 degrees.

[0313] For example, the first magnet portion 130A may include a first region S1 including the second surface 13B and a second region S2 including the first surface 13A. The length of the second region S2 in the third direction (Y-axis direction) may decrease as it proceeds from the second surface 13B toward the first surface 13A.

[0314] For example, the length L1 of the first magnet portion 130A in the third direction (Y-axis direction) may be greater than the length L2 of the first magnet portion 130 in the first direction (Z-axis direction). In other embodiments, L1 and L2 may be the same.

[0315] In addition, a length L1 of the first magnet portion 130A in the third direction (Y-axis direction) may be greater than a length W1 of the first magnet portion 130 in the second direction (X-axis direction).

[0316] For example, the length L3 of the first coil portion 120A in the third direction may be less than the length L1 of the first magnet portion 130A in the third direction (Y-axis direction). In other embodiments, L3 may be equal to L1.

[0317] For example, the length L4 of the first coil portion 120A in the first direction may be greater than the length L2 of the first magnet portion 130A in the first direction (Z-axis direction). In other embodiments, L4 may be less than or equal to L2.

[0318] The description of the first magnet portion 130A and the relationship between the first magnet portion and the first coil portion 120A may also be applied or analogously applied to the second magnet portion 130B and the second coil portion 120B.

[0319] For example, the second magnet part 120B can be symmetrically arranged with the first magnet part 120A. For example, the second magnet part 120B can be 180 degrees rotationally symmetrical with the first magnet part 120A about the optical axis. In addition, the first coil part 120A and the second coil part 120B can be 180 degrees rotationally symmetrical about the optical axis.

[0320] For example, the inclined surface 35 of the first magnet portion 130A in a direction from the first corner portion 142A to the fourth corner portion 142D of the housing 140 may overlap with the capacitor 195 and the position sensor 170 .

[0321] For example, the position sensor 170 may be disposed between the inclined surface 35 of the first magnet portion 130A and the capacitor 195. In another embodiment, the capacitor 195 may be disposed between the position sensor 170 and the inclined surface 35 of the first magnet portion 130A. This may reduce the effect of the magnetic interference of the first magnet portion 130A on the position sensor 170, thereby preventing the position sensor 170 from malfunctioning due to the magnetic interference.

[0322] The circuit board 190 and the position sensor 170 may be disposed in the housing 140 .

[0323] The circuit board 190 and the position sensor 170 may be disposed on the first side portion (141A or first side surface) of the housing 140 where the first magnet portion 130A is disposed. For example, the circuit board 190 may be disposed in the groove 25 of the housing 140, and the position sensor 170 may be disposed in the seating portion 16A of the housing 140.

[0324] For example, the circuit board 190 may be disposed on the outside of the first magnet 130A disposed on the first side portion 141A of the housing 140. Here, the outside of the first magnet 130A may be the opposite side of the center of the housing 140 with respect to the first magnet 130A.

[0325] The circuit board 190 may include terminals 91 , 92 (or pads) for providing a driving signal to the coil 120 and terminals 95 , ie, B1 to B5 , for electrical connection with the outside.

[0326] For example, the terminals 91, 92 of the circuit board 190 can be arranged on the first surface of the circuit board 190, so as to be electrically connected to 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 can be the surface facing the first side portion 141A of the housing 140 or the coil frame 110.

[0327] In addition, for example, the terminals 95 of the circuit board 190 may be disposed on the second surface of the circuit board 190 to facilitate electrical connection with an external part. The second surface of the circuit board 190 may be a surface positioned opposite to the first surface of the circuit board 190. For example, the terminals 95 of the circuit board 190 may be disposed in a row on the lower surface of the second surface of the circuit board 190.

[0328] exist Fig.33 In the embodiment, the circuit board 190 includes five terminals B1 to B5 for external electrical connection, but in other embodiments, the circuit board 190 may include four terminals or six or more terminals.

[0329] The circuit board 190 may include a circuit pattern or wiring for electrically connecting the position sensor 170 and the terminals 91 , 92 , 95 of the circuit board 190 .

[0330] Furthermore, the circuit board 190 may include at least one hole 9 for engaging with the protrusion 8 of the housing 140 .

[0331] Reference Figure 2 and Fig.33 , the circuit board 190 may include a first portion 190A (or body) disposed in the housing 140 and a second portion 190B (or extension) connected to the first portion 190B and extending to the outer surface of the base 210. The first portion 190A of the circuit board 190 may be positioned on one side of the first magnet portion 130A to avoid spatial interference with the first magnet portion 130A, and the second portion 190B may be positioned below the first magnet portion 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 a flexible printed circuit board (FPCB).

[0332] The position sensor 170 may be coupled to or mounted on the circuit board 190 by a conductive adhesive or solder. For example, the position sensor 170 may be mounted, coupled, or disposed on a first surface of the circuit board 190.

[0333] The position sensor 170 may detect the position or displacement of the bobbin 110 in the first direction. For example, the position sensor 170 may detect the magnetic field strength of the sensing magnet 180 and output an output signal (eg, output voltage) according to the detection result.

[0334] For example, the position sensor 170 may be a driver IC including a Hall sensor.

[0335] For example, the position sensor 170 may include a first terminal and a second terminal to which power or a power signal is input. In addition, the position sensor 170 may include a third terminal and a fourth terminal for transmitting and receiving a clock signal and a data signal using data communication using a protocol such as I2C communication. The position sensor 170 and the control portion 830, 780 may perform data communication using a protocol such as I2C communication.

[0336] Each of the first to fourth terminals of the position sensor 170 may be electrically connected to a corresponding one of the first to fourth terminals (eg, B1 to B4 ) of the circuit board 190 .

[0337] In addition, for example, the position sensor 170 may include a fifth terminal and a sixth terminal for supplying a drive signal, such as a drive current, to the coil 120. For example, the fifth terminal and the sixth terminal of the position sensor 170 may be electrically connected to a corresponding one of the fifth terminal and the sixth terminal 91, 92 of the circuit board 190.

[0338] The capacitor 195 may be coupled to the circuit board 190 or mounted on the circuit board 190 by a conductive adhesive or solder. For example, the capacitor 195 may be mounted, coupled or positioned on the first surface of the circuit board 190. For example, the capacitor 195 may be disposed on the seating portion 16A of the housing 140.

[0339] The capacitor 195 may be in the form of a chip, and may include a first terminal electrically connected to one end portion of the capacitor 195 and a second terminal electrically connected to the other end portion of the capacitor 195. The capacitor 195 may be denoted as a "capacitive element" or an accumulator.

[0340] In another embodiment, the capacitor 195 may be integrally formed with the circuit board 190. For example, the circuit board 190 may include a capacitor including a first conductive layer, a second conductive layer, and an insulating layer (eg, a dielectric layer) disposed between the first conductive layer and the second conductive layer.

[0341] The capacitor 195 may be electrically connected in parallel to the terminals (eg, B1 , B2 ) of the circuit board 190 for supplying power (or a driving signal) to the position sensor 170 from the outside.

[0342] Alternatively, the capacitor 195 may be electrically connected in parallel to a first terminal and a second terminal of the position sensor 170 , the first terminal and the second terminal being electrically connected to terminals (eg, B1 , B2 ) of the circuit board 190 .

[0343] For example, one end portion of capacitor 195 (or the first terminal of capacitor 195) can be electrically connected to one of the terminals (e.g., B1, B2) of circuit board 190, and the other end portion of capacitor 195 (or the second terminal of capacitor 195) can be electrically connected to the other remaining one of the terminals (e.g., B1, B2) of circuit board 190.

[0344] The capacitor 195 can be used as a smoothing circuit, which removes the ripple component included in the power signal or drive signal (e.g., current) supplied from the outside to the position sensor 170 by being electrically connected in parallel with the terminals (e.g., B1, B2) of the circuit board 190, thereby providing a stable and consistent power signal or drive signal (e.g., current) to the position sensor 170. In addition, the capacitor 195 can also protect the position sensor 170 from the influence of noise or ESD, etc. of high-frequency components supplied from the outside.

[0345] In addition, capacitor 195 can prevent overcurrent caused by noise or ESD of high-frequency components flowing in from the outside from being applied to position sensor 170, and can prevent the calibration value of the displacement of the coil frame obtained based on the output signal of position sensor 170 from being reset due to overcurrent.

[0346] In another embodiment, the position sensor 170 can be implemented only with a Hall sensor. In an embodiment in which the position sensor 170 is implemented only with a Hall sensor, the position sensor 170 may include two input terminals for providing a power signal or a drive signal and two output terminals for outputting an output signal. In this case, the circuit board 190 may include a first terminal and a second terminal (e.g., B1, B2) electrically connected to the two input terminals of the position sensor 170 and a third terminal and a fourth terminal (e.g., B3, B4) electrically connected to the two output terminals of the position sensor 170. In addition, a power signal or a drive signal for driving the position sensor 170 may be supplied to the first terminal and the second terminal (e.g., B2, B2) of the circuit board 190 from an external device (e.g., the control portion 830), and the output signal of the position sensor 170 may be output to the third terminal and the fourth terminal (e.g., B3, B4) of the circuit board 190.

[0347] In addition, the circuit board 190 may include a fifth terminal (e.g., B5) and a sixth terminal (not shown) for supplying a power signal or a drive signal from an external device (e.g., the control portion 830) to the coil 120. The capacitor 195 may be electrically connected in parallel to two input terminals of the position sensor 170 or the first and second terminals (e.g., B1, B2) of the circuit board 190.

[0348] 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 an upper elastic member 150 and a lower elastic member 160.

[0349] The upper elastic member 150 and the lower elastic member 160 may be implemented as leaf springs, but in other embodiments, the upper elastic member 150 and the lower elastic member 160 may be implemented as coil springs, suspension wires, or the like.

[0350] For example, the upper elastic member 150 may be coupled to an upper portion, an upper surface, or an upper end of the bobbin 110 and an upper portion, an upper surface, or an upper end of the housing 140. The lower elastic member 160 may be coupled to a lower portion, a lower surface, or a lower end of the bobbin 110 and a lower portion, a lower surface, or a lower end of the housing 140.

[0351] At least one of the upper elastic member 150 or the lower elastic member 160 may include a plurality of elastic springs or elastic portions divided or separated into two or more pieces.

[0352] For example, the lower elastic member 160 may include a first lower spring 160a, a second lower spring 160b, and a third lower spring 160c that are spaced apart from each other.

[0353] exist Fig.29 , the upper elastic member 150 is illustrated as including one upper spring that is not separated from each other; however, in other embodiments, the upper elastic member may include a plurality of upper springs.

[0354] The upper elastic member 150 may include a first inner frame 151 coupled to an upper portion, an upper surface, or an upper end of the bobbin 110, a first outer frame 152 coupled to an upper portion, an upper surface, or an upper end of the housing 140, and a first frame connecting portion 153 connecting the first inner frame 151 and the first outer frame 152. Here, the "inner frame" may be expressed as an "inner portion", and the "outer frame" may be expressed as an "outer portion".

[0355] For example, the upper elastic member 150 may include four first frame connection portions 153. In other embodiments, the upper elastic member 150 may include one or more first frame connection portions. For example, the first frame connection portions of the upper elastic member 150 may be positioned to correspond to the first corner portion 142A to the fourth corner portion 142D of the housing 140.

[0356] A first coupling portion coupled to the first coupling portion of the bobbin 110 may be provided on the first inner frame 151 of the upper elastic member 150, and the first coupling portion of the first inner frame 151 may be a flat surface or a through hole. A second coupling portion 152A coupled to the first coupling portion 143 of the housing 140 may be provided on the first outer frame 152. The second coupling portion 152A may be a through hole, but in other embodiments, the second coupling portion 152A may be a flat surface or a groove.

[0357] The lower elastic member 160 may include a second inner frame 161 connected to the lower portion, lower surface or lower end of the coil frame 110, a second outer frame 162 connected to the lower portion, lower surface or lower end of the shell 140, and a second frame connecting portion 163 connecting the second inner frame 161 and the second outer frame 162.

[0358] Each of the first frame connection portion 153 and the second frame connection portion 163 may be formed to be bent or curved (or formed into a curve) at least once to form a pattern of a specific shape. Through the position change and micro deformation of the first frame connection portion 153 and the second frame connection portion 163, the coil frame 110 may be elastically (or resiliently) supported to rise and / or fall along the first direction.

[0359] A first coupling portion coupled to the first coupling portion of the bobbin 110 may be provided on the second inner frame 161 of the lower elastic member 160, and the first coupling portion of the second inner frame 161 may be a flat surface or a through hole. A second coupling portion 162a coupled to the second coupling portion 147 of the housing 140 may be provided on the second outer frame 162. The second coupling portion 162a may be a through hole, but in other embodiments, may be a flat surface or a groove.

[0360] Each of the first to third lower springs 160A to 160C may include a second inner frame 162 , a second outer frame 163 , and a second frame connection portion 163 .

[0361] Reference Fig.30, the first lower spring 160A may include a coupling portion 51 for coupling with one end portion of the first coil portion 120A by means of solder or a conductive adhesive material. For example, the second inner frame 161 of the first lower spring 160A may include the first coupling portion 51.

[0362] The second lower spring 160B may include a coupling portion 52 for coupling with one end portion of the second coil portion 120B by means of solder or a conductive adhesive. For example, the second inner frame 161 of the second lower spring 160B may include the second coupling portion 52.

[0363] The third lower spring 160C may include a third combining portion 53A for combining with the other end portion of the first coil portion 120A by means of solder or a conductive adhesive material, and a fourth combining portion 53B for connecting with the other end portion of the second coil portion 120B. For example, the second inner frame 161 of the third lower spring 160C may include the third combining portion 53A and the fourth combining portion 53B. For example, an insertion groove may be provided in the first to fourth combining portions 51, 52, 53A, 53B for guiding the coil portions 120A, 120B.

[0364] For example, the first coil portion 120A and the second coil portion 120C may be connected in series to each other through the lower elastic member 160. For example, the first coil portion 120A and the second coil portion 120C may be connected in series to each other through the first coil portion 160A to the third coil portion 160C. Alternatively, for example, the third lower spring 160C may connect the first coil portion 120A and the second coil portion 120C in series.

[0365] The lower elastic member 160 may be coupled to the circuit board 190 by a conductive adhesive or solder. For example, the lower elastic member 160 may be electrically connected to the circuit board 190.

[0366] For example, 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 via a conductive adhesive or solder, and one end of the second lower spring 160B (e.g., the second outer frame 162) can be electrically connected to the terminal 92 of the circuit board 190 via a conductive adhesive or solder.

[0367] The coil 120 may be electrically connected to the terminals 91, 92 of the circuit board 190 through the first to third lower springs 160A to 160C. A driving signal may be provided to the coil 120 through the terminals 91, 92 of the circuit board 190 and the first to third lower springs 160A to 160C.

[0368] In another embodiment, the upper elastic member 150 may include first to third upper springs, and Fig.30 The description of the first to third lower springs 160A to 160C described in the accompanying drawings may be applicable or analogously applicable to the first to third upper springs.

[0369] In another embodiment, one of the upper elastic member 150 and the lower elastic member 160 may include a first elastic member and a second elastic member, and the other of the upper elastic member 150 and the lower elastic member 160 may include a third elastic member. Then, one end portion of the first coil portion 120A may be connected to the first elastic member by a conductive adhesive or solder, the other end portion of the first coil portion 120A may be connected to the third elastic member by a conductive adhesive or solder, and one end portion of the second coil portion 120B may be connected to the second elastic member by a conductive adhesive or solder, and the other end portion of the second coil portion 120B may be connected to the third elastic member by a conductive adhesive or solder. In addition, the first elastic member may be electrically connected to the terminal 91 of the circuit board 190 by a conductive adhesive or solder, and the second elastic member may be electrically connected to the terminal 92 of the circuit board 190 by a conductive adhesive or solder.

[0370] In another embodiment, the first coil portion 120A and the second coil portion 120B may be a single integral coil body directly connected to each other, and either the upper elastic member 150 or the lower elastic member 160 may include a first elastic member and a second elastic member, one end portion of the coil 120 may be connected to the first elastic member by a conductive adhesive or solder, and the other end portion of the coil 120 may be connected to the second elastic member by a conductive adhesive or solder, and the first elastic member may be 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.

[0371] In order 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 .

[0372] For example, the lens driving device 100 may include a damper (not shown) disposed between the first frame connection portion 153 and the bobbin 110 or between the first frame connection portion 153 and the housing 140. At this time, the damper (not shown) may contact, couple or attach to the first frame connection portion 153 and the bobbin 110, or may contact, couple or attach to the first frame connection portion 153 and the housing 140.

[0373] In addition, for example, the lens driving device 100 may include a damper (not shown) disposed between the second frame connection portion 163 of each of the first to third lower springs 160A to 160C and the bobbin 110 (or / and the housing 140 ).

[0374] In addition, for example, the lens driving device 100 may include a damper (not shown) disposed between an inner surface of the housing 140 and an outer surface of the bobbin 110 .

[0375] Reference Fig.33 , the base 210 may be positioned below the bobbin 110 or the housing 140 . For example, the base 210 may be positioned below the lower elastic member 160 .

[0376] The base 210 may 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 a hollow portion penetrating the base 210 along the optical axis direction. The base 210 may have a shape that is the same as or corresponds to the cover member 300 or the housing 140, such as a rectangular shape.

[0377] For example, the base 210 may be coupled or fixed to the cover member 300 .

[0378] The base 210 may have a step portion 211 at the lower end of the side surface, and an adhesive may be applied to the step portion 211 when the cover member 300 is adhered and fixed. At this time, the step portion 211 may guide the cover member 300 coupled to the upper side portion, and may face the lower end of the side plate 302 of the cover member 300. An adhesive member or / and a sealing member may be placed or applied between the bottom of the side plate 302 of the cover member 300 and the step portion 211 of the base 210.

[0379] The base 210 may include a boss 216 protruding from the upper surface. The boss 216 may also be alternatively represented as a "columnar portion". The boss 216 may be positioned at a corner portion of the base 210. For example, the boss 216 may correspond to the groove 148 of the housing 140 in the optical axis direction, face the groove 148 of the housing 140, or overlap with the groove 148 of the housing 140. For example, the boss 216 may have a polygonal column shape protruding from the upper surface of the base 210 to be perpendicular to the lower surface of the base 210. For example, when viewed in the first direction or from above, the boss 216 may have a triangular, square, or circular shape.

[0380] The boss 216 may be inserted into the groove 148 of the housing 140 and may be fastened or bonded to the groove 148 of the housing 140 by an adhesive material (not shown) such as epoxy or silicone.

[0381] In order to prevent the lower surface or lower end of the coil frame 210 from directly colliding with the upper surface of the base 210 when an external impact occurs, the base 210 may include a stopper (not shown) protruding from the upper surface, and the stopper of the base 210 may be configured to correspond to the boss 216 of the base 210, but is not limited to this.

[0382] In order to avoid spatial interference between the bobbin 110 and the lower elastic member 160 , the stopper of the base 210 may be positioned higher than the second frame connection portion 163 of the lower spring ( 160 a , 160 b ) coupled to the base 210 .

[0383] The base 210 may include a seating groove 215 for setting or seating the lower end portion (or second portion 190B) of the circuit board 190 on a side surface or outer surface corresponding to the first side portion (e.g., 141A) of the housing 140 on which the circuit board 190 is set.

[0384] For example, the terminal 95 of the circuit board 190 may be disposed on an 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 positioned within the seating groove 215 of the base 210.

[0385] The cover member 300 accommodates the housing 140 and the AF driving section in an accommodation space formed together with the base 210 .

[0386] The cover member 300 may be in the form of a box having an open lower portion and including an upper plate 301 and a side plate 302. The lower end of the side plate 302 of the cover member 300 may be coupled to the base 210. The shape of the upper plate 301 of the cover member 300 may be a polygon, such as a square or an octagon, and the upper plate 301 may include an opening (303) for exposing a lens (not shown) to external light.

[0387] The material of the cover member 300 may be a non-magnetic material such as SUS or plastic to prevent the magnet 130 from adhering to the cover member, but in other embodiments, the cover member 300 may be formed of a magnetic material and may function as a yoke.

[0388] 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 .

[0389] Reference Fig.35, at the initial position of the coil frame 110, the position sensor 170 can overlap with the sensing magnet 180 in a direction perpendicular to the optical axis, passing through the optical axis and from the first side portion 141A to the second side portion 141B of the shell 140, or in the second direction (X-axis direction), or in a direction parallel to the virtual plane (or straight line) 401.

[0390] The first coil portion 120A and the second coil portion 20B may be disposed to be offset in opposite directions about a virtual plane (or virtual straight line) 401. For example, the virtual plane 401 (or straight line) may be a plane (or straight line) perpendicular to the optical axis OA, passing through the optical axis, and parallel to a direction from the first side portion 141A to the second side portion 141B of the housing 140.

[0391] Alternatively, for example, the virtual surface 401 or the virtual straight line may pass through the center 601 of the coil former.

[0392] For example, the hollow portion 12A of the first coil portion 120A and the hollow portion 12A of the second coil portion 20B may be disposed in opposite directions with respect to the virtual surface (or virtual straight line) 401 .

[0393] The first coil portion 120A can be arranged to be adjacent to one corner portion 142D of the two corner portions 142B, 142D of the shell 140 positioned opposite to each other about the optical axis, and the second coil portion 120B can be arranged to be adjacent to the other corner portion 142B of the two corner portions 142B, 142D of the shell 140 positioned opposite to each other about the optical axis.

[0394] At least a portion of the first magnet portion 130A may overlap with at least a portion of the second magnet portion 120B in a direction perpendicular to the optical axis, passing through the optical axis and 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 .

[0395] In another embodiment, the first magnet portion 130A may not overlap with the second magnet portion 130B in a direction perpendicular to the optical axis, passing through the optical axis and 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.

[0396] At least a portion of the first coil portion 120A may overlap with at least a portion of the second coil portion 120B in a direction perpendicular to the optical axis, passing through the optical axis and 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.

[0397] At least a portion of the position sensor 170 may overlap with at least a portion of the second coil portion 120B in a direction perpendicular to the optical axis, passing through the optical axis, and from the first side portion 141A of the housing 140 to the second side portion 141B, or in a direction parallel to the virtual plane (or straight line) 401. In another embodiment, the position sensor 170 may not overlap with the second coil portion 120B in a direction perpendicular to the optical axis, passing through the optical axis, and from the first side portion 141A of the housing 140 to the second side portion 141B, or in a direction parallel to the virtual plane (or straight line) 401.

[0398] At least a portion of the position sensor 170 may overlap with at least a portion of the second magnet portion 130B in a direction perpendicular to the optical axis, passing through the optical axis and 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.

[0399] At least a portion of the sensing magnet 180 may overlap with at least a portion of the second magnet portion 120B in a direction perpendicular to the optical axis, passing through the optical axis and 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.

[0400] In addition, at least a portion of the sensing magnet 180 may overlap with at least a portion of the second coil portion 120B in a direction perpendicular to the optical axis, passing through the optical axis, and from the first side portion 141A of the housing 140 to the second side portion 141B, or in a direction parallel to the virtual plane (or straight line) 401. In another embodiment, the sensing magnet 180 may not overlap with the second coil portion 120B in a direction perpendicular to the optical axis, passing through the optical axis, and from the first side portion 141A of the housing 140 to the second side portion 141B, or in a direction parallel to the virtual plane (or straight line) 401.

[0401] The first coil portion 120A may be asymmetric about the virtual plane (or virtual straight line) 401. The second coil portion 120B may be asymmetric about the virtual plane (or virtual straight line 401). The first magnet portion 130A may be asymmetric about the virtual plane (or virtual straight line 401). The second magnet portion 130B may be asymmetric about the virtual plane (or virtual straight line 401). In another embodiment, each of the first coil portion 120A and the second coil portion 120B may be asymmetric about the virtual plane (or virtual straight line 401).

[0402] The first magnet portion 130A and the second magnet portion 130B may be arranged to be left-right asymmetric about the virtual straight line (or virtual straight line) 402. The first coil portion 120A and the second coil portion 120B may be arranged to be left-right asymmetric about the virtual straight line (or virtual straight line) 402. In another embodiment, the first magnet portion 130A and the second magnet portion 130B may be arranged to be left-right symmetric about the virtual straight line (or virtual straight line) 402. In another embodiment, the first coil portion 120A and the second coil portion 120B may be arranged to be left-right symmetric about the virtual straight line (or virtual straight line) 402.

[0403] For example, 401 may be perpendicular to the optical axis, pass through the optical axis, and be parallel to the second direction.

[0404] For example, the virtual surface (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 center 601 of the hollow portion of the coil former 110.

[0405] The first coil portion 120A may include a first portion 48A (or first region) overlapping with the second coil portion 120B in a direction perpendicular to the optical axis, passing through the optical axis and from the first side portion 141A to the second side portion 141B of the shell 140, or in a direction parallel to the virtual plane (or straight line) 401, and a second portion 48B (or second region) not overlapping with the second coil portion 120B.

[0406] The first length of the first portion 48A of the first coil portion 120A may be different from the second length of the second portion 48B of the first coil portion 120A. For example, the first length may be less than the second length.

[0407] For example, the first length can be the length of the first portion 48A in a third direction (Y-axis direction), in a direction from a third side portion to a fourth side portion of the shell 140, in a direction perpendicular to a direction from the first side portion 141A to the second side portion 141B, or in a direction parallel to the first side portion 141A of the shell 140, or in a direction parallel to the virtual plane 402.

[0408] For example, the second length can be the length of the second portion 48B in the third direction (Y-axis direction), in the direction from the third side portion 141C to the fourth side portion 141D of the shell 140, in the direction perpendicular to the direction from the first side portion 141A to the second side portion 141B, or in the direction parallel to the first side portion 141A of the shell 140 or in the direction parallel to the virtual plane 402.

[0409] 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 overlap area between the first magnet portion 130A and the second magnet portion 130B increases, so that the installation space of the position sensor 170 and the capacitor 195 may be insufficient within the design size range of the preset lens driving device.

[0410] In addition, when the second length is greater than five times the first length, the overlapping area between the first magnet portion 130A and the second magnet portion 130B may decrease, which may result in a reduction in the size of each of the magnet portions 130C, 130B and a reduction in driving force.

[0411] In another embodiment, the second length may be greater than 1.5 times the first length and less than 5 times the first length. In another embodiment, the second length may be greater than 1 times the first length and less than 7 times the first length. In another embodiment, the first length and the second length may be equal.

[0412] The second coil portion 120B may include a first portion 49A (or a first region) overlapping with the first coil portion 120A in a direction perpendicular to the optical axis and pointing from the first side portion 141A of the housing 140 to the second side portion 141B or in a second direction (X-axis direction), and a second portion 49B (or a second region) not overlapping with the first coil portion 120A.

[0413] The description of the first portion 48A and the second portion 48B of the first coil portion 120A may be applicable or analogously applicable to the first portion 49A and the second portion 49B of the second coil portion 120B.

[0414] Fig.36 is a conceptual diagram illustrating a triple-camera device according to a second embodiment of the present disclosure.

[0415] Fig.36 The camera device may include three actuators 10, 20, 30. For example, Fig.36 The camera device 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. In this case, the third actuator 30 may include the lens driving device 100 according to the present embodiment.

[0416] Each of the three actuators 10, 20, 30 may include a driving magnet for driving AF or OIS. In a three-camera device, it is necessary to minimize magnetic interference between the driving magnets included in the actuators 10, 20, 30 to achieve a design of accurate AF driving and OIS driving.

[0417] For example, the first actuator 10 includes three driving magnets 31 to 33 , and no driving magnet is provided in a region adjacent to the third actuator 30 .

[0418] The second actuator 20 may include an OIS actuator 20A including OIS magnet parts 41A, 42A, 42B for performing an OIS operation and a zoom actuator 20B including driving magnet parts 61A, 61B for performing a zoom function. The OIS actuator 20A may also include a separate magnet part 23 and a yoke 24 for fixing the OIS moving part.

[0419] The drive magnets 31 to 33 of the first actuator 10 and the magnets 41A, 42A, 42B of the second actuator 20 may be as follows. Fig.36 Set up as shown in .

[0420] In order to arrange the magnets 31 to 33, 42A, 41B, 42B in the first actuator 10 and the second actuator 20 to minimize magnetic interference, in the present embodiment, the magnets 130A, 130B, 180, 185 can be as follows: Fig.36 In other words, in the lens driving device 100, the driving magnet portion is not disposed on the third side portion 141C and the fourth side portion 141D of the housing 140, and the position sensor 170 and the first magnet portion 130A are disposed on the first side portion 141A of the housing 140, thereby reducing magnetic 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. Therefore, the present embodiment can prevent AF driving failure due to magnetic interference and improve the reliability of AF driving.

[0421] Magnetic interference between magnets of adjacent actuators may be greatly affected by the separation distance between the magnets of adjacent actuators.

[0422] The distance D1 between the driving 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 interference between the driving magnet 32 ​​and the magnet 130B is large, so that the reliability of the AF operation and the OIS operation of the actuator 10 may be reduced, and the reliability of the AF operation of the actuator 30 may be reduced. In addition, when D1 exceeds 200% of L1, the influence of magnetic interference is small, but the size of the camera module may increase too much.

[0423] In other embodiments, D1 may be greater than or equal to 80% of L1 and less than or equal to 150% of L1 to prevent the size from increasing too much while reducing the impact of magnetic interference. Alternatively, in other embodiments, D1 may be greater than or equal to 90% of L1 and less than or equal to 120% of L1. Alternatively, for example, in other embodiments, D1 may be greater than or equal to 70% of the length L1 of magnet 130B and less than or equal to 100% of the length L1 of magnet 130B.

[0424] The distance D2 between the magnet 130A of the actuator 30 and the yoke 24 (or the 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 interference between the magnet 130A and the yoke 24 (or the magnet 23) is large, so that the reliability of the OIS operation of the actuator 20 may be reduced, and the reliability of the AF operation of the actuator 30 may be reduced. In addition, when D3 exceeds 100% of L1, the influence of magnetic interference is small, but the size of the camera module may increase too much.

[0425] In another embodiment, D2 may be greater than or equal to 50% of L1 and less than or equal to 80% of L1 to prevent the size from increasing too much while reducing the impact of magnetic interference. Alternatively, in another embodiment, D2 may be greater than or equal to 40% of L1 and less than or equal to 60% of L1. Alternatively, for example, in another embodiment, D2 may be greater than or equal to 30% of the length L1 of the magnet 130A and less than or equal to 50% of the length L1 of the magnet 130A.

[0426] In addition, if the position sensor 170 is provided on the side portion of the second actuator 30 adjacent to the magnet 23 of the third actuator 30 (for example, the fourth side portion 141D of the housing 140), the space between the circuit board 190 and the second actuator 20 may be too narrow, making it difficult to perform the soldering process on the terminal 95 of the circuit board 190. On the other hand, in the present embodiment, since the circuit board 190 is provided on the first side portion 141A of the housing 140, Fig.36 In this embodiment, the soldering process on the terminals of the circuit board 190 can be easy.

[0427] Compared to the comparative example including a coil wound on the outer peripheral surface of the coil frame 110 based on the optical axis, providing the two coil portions 120A, 120B on the two side portions of the coil frame 110 for AF driving is suitable for the design of a large-diameter lens driving device because it occupies a smaller space. Therefore, since the present embodiment uses two glasses-type coil portions to achieve AF driving, a large-diameter lens driving device can be achieved.

[0428] Meanwhile, the lens driving device according to the embodiment may be used in various fields such as a camera module or an optical device.

[0429] For example, the lens driving device 100 according to the present embodiment may be included in an optical instrument that forms an image of an object in space by using the characteristics of light, such as reflection, refraction, absorption, interference, and diffraction, and is intended to improve the visual acuity of the eye, or is intended to record an image and reproduce an image through a lens, or is intended to optically measure, propagate, or transmit an image, etc. For example, the optical device according to the present embodiment may include a smartphone and a portable terminal equipped with a camera.

[0430] Fig.37 is an exploded perspective view showing a camera apparatus 200 according to a second embodiment of the present disclosure.

[0431] Reference Fig.37 , the camera device 200 may 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 portion 830, and a connector 840.

[0432] The lens module 400 may be mounted or coupled to the bobbin 110 of the lens driving device 100. The lens module 400 may include at least one of a lens or a lens barrel 400.

[0433] The first holder 600 may be disposed below the base 210 of the lens driving device 100. The optical filter 610 is mounted on the first holder 600, and the first holder 600 may have a boss 500 on which the optical filter 610 is seated.

[0434] The adhesive member 612 may couple or attach the base 210 of the lens driving device 100 to the first holder 600. In addition to the above-mentioned adhesive function, the adhesive member 612 may also play a role in preventing foreign substances from entering the inside of the lens driving device 100.

[0435] For example, the adhesive material 612 may be an epoxy, a thermosetting adhesive, a UV curable adhesive, or the like.

[0436] The filter 610 may block light of a specific frequency band from passing through the lens barrel 400 and entering the image sensor 810. The filter 610 may be an infrared cut filter, but is not limited thereto. In this case, the filter 610 may be disposed parallel to the xy plane.

[0437] An opening may be formed in a portion of the first holder 600 where the filter 610 is mounted so that light passing through the filter 610 may enter the image sensor 810 .

[0438] The second holder 800 is disposed below the first holder 600, and the image sensor 810 may be mounted on the second holder 600. The image sensor 810 is a portion to which light passing through the optical filter 610 is incident and forms an image included in the light.

[0439] The second holder 800 may be equipped with various circuits, components, control parts, etc. to convert an image formed on the image sensor 810 into an electrical signal and transmit the electrical signal to an external device.

[0440] The second holder 800 may be implemented as a circuit board on which an image sensor may be mounted, a circuit pattern may be formed, and various elements may be combined.

[0441] The image sensor 810 may receive an image included in light incident through the lens driving device 100 and convert the received image into an electric signal.

[0442] The optical filter 610 and the image sensor 810 may be spaced apart from each other so as to face each other in the first direction.

[0443] The motion sensor 820 is mounted in the second holder 800 , and may be electrically connected to the control portion 830 through a circuit pattern provided in the second holder 800 .

[0444] The motion sensor 820 outputs rotational angular velocity information generated due to the movement of the camera apparatus 200. The motion sensor 820 may be implemented as a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0445] The control part 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.

[0446] For example, the driving signal may be provided to the position sensor 170 through 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 portion 830.

[0447] The connector 840 is electrically connected to the second holder 800 , and may have a port for electrically connecting to an external device.

[0448] Fig.38 is a perspective view illustrating a portable terminal 200A according to a second embodiment of the present disclosure, and Fig.39 It's a picture. Fig.38 A configuration diagram of a portable terminal 200A shown in FIG.

[0449] Reference Fig.38 and Fig.39 The portable terminal (200A, hereinafter referred to as “terminal”) may include a body 850, a wireless communication part 710, an A / V input part 720, a sensing part 740, an input / output part 750, a memory part 760, an interface part 770, a control part 780 and a power supply part 790.

[0450] Fig.38 The body 850 shown in FIG. 8 has a bar shape, but is not limited thereto, and may have various structures such as a sliding type, a folding type, a swing type, or a rotation type in which two or more sub-bodies are coupled to enable relative movement.

[0451] The body 850 may include a shell (housing, housing, cover, etc.) forming an appearance. For example, the body 850 may be divided into a front shell 851 and a rear shell 852. Various electronic components of the terminal may be built in a space formed between the front shell 851 and the rear shell 852.

[0452] The wireless communication section 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 in which the terminal 200A is located. For example, the wireless communication section 710 may be configured to include a broadcast receiving module 711, a mobile communication module 712, a wireless Internet module 713, a short-range communication module 714, and a location information module 715.

[0453] The A / V (audio / video) input portion 720 is used to input an audio signal or a video signal, and may include a camera 721 and a microphone 722 , etc. According to an embodiment, the camera 721 may include the camera device 200 .

[0454] The sensing part 740 can detect the current state of the terminal 200A, such as the open / closed state of the terminal 200A, the position of the terminal 200A, whether the user is in contact, the orientation of the terminal 200A, the acceleration / deceleration of the terminal 200A, and generate a sensing signal to control the operation of the terminal 200A. For example, if the terminal 200A is in the form of a sliding phone, the sensing part 740 can sense whether the sliding phone is opened or closed. In addition, the sensing part 740 is responsible for sensing functions related to whether the power supply part 790 is powered, whether the interface part 770 is connected to an external device, etc.

[0455] The input / output part 750 is used to generate input or output related to vision, hearing or touch. The input / output part 750 can generate input data for controlling the operation of the terminal 200A, and can also display information processed in the terminal 200A.

[0456] The input / output portion 750 may include a keyboard portion 730, a display module 751, a sound output module 752, and a touch screen panel 753. The keyboard portion 730 may generate input data through keyboard input.

[0457] The display module 751 may include a plurality of pixels whose colors vary according to electrical signals. For example, the display module 751 may include at least one of a liquid crystal display, a thin film transistor liquid crystal display, an organic light emitting diode display, a flexible display, and a 3D display.

[0458] The audio output module 752 may output audio data received from the wireless communication part 710 in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like, or may output audio data stored in the memory part 760 .

[0459] The touch screen panel 753 may convert a change in electrostatic capacitance caused by a user's touch on a specific area of ​​the touch screen into an electric input signal.

[0460] The memory portion 760 may store a program for processing and controlling the control portion 780, and may temporarily store input / output data (e.g., phonebook, messages, audio, still images, photos, videos, etc.). For example, the memory portion 760 may store images captured by the camera 721, such as photos or videos.

[0461] The interface portion 770 serves as a channel for connecting to an external device connected to the terminal 200A. The interface portion 770 receives data from the external device, supplies power, and transmits power to each component in the terminal 200A, or allows data inside the terminal 200A to be transmitted to an external device. For example, the interface portion 770 may 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.

[0462] The control part (controller, 780) can control the overall operation of the terminal 200A. For example, the control part 780 can perform related control and processing for voice calls, data communications, video calls, etc.

[0463] The control portion 780 may be equipped with a multimedia module 781 for multimedia playback. The multimedia module 781 may be implemented within the control portion 180, and may be implemented separately from the control portion 780.

[0464] The control portion 780 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as characters and images, respectively.

[0465] The power supply part 790 may supply power required for the operation of each component by receiving external power or internal power under the control of the control part 780 .

[0466] Although the first embodiment and the second embodiment have been described above, some parts of the first embodiment and some parts of the second embodiment can be used interchangeably. In other words, some parts of the first embodiment can be replaced with corresponding parts of the second embodiment. In addition, some parts of the second embodiment can be replaced with corresponding parts of the first embodiment. In addition, the third embodiment of the present disclosure can include some parts of the first embodiment and some parts of the second embodiment together.

[0467] Although the embodiments of the present disclosure have been described with reference to the accompanying drawings, it will be understood by those skilled in the art that the present disclosure can be implemented in other specific forms without changing its technical concept or essential features. Therefore, it should be understood that the embodiments described above are illustrative and non-restrictive in every aspect.

Claims

1. A lens driving device, comprising: case; a substrate, the substrate being arranged on the housing; a retainer disposed in the housing; a magnet, the magnet being disposed on the holder; a coil configured to interact with the magnet; as well as an elastic member connecting the housing and the retainer, wherein the coil includes a first coil disposed on the substrate and a second coil disposed on an opposite side of the first coil based on an optical axis, and The elastic member electrically connects the second coil and the substrate.

2. The lens driving device according to claim 1, wherein: The elastic member includes an upper elastic member provided on an upper surface of the retainer, wherein the upper elastic member includes a first upper elastic member and a second upper elastic member spaced apart from each other, wherein the first upper elastic member is coupled to one end portion of the second coil, and Wherein, the second upper elastic member is coupled to the other end portion of the second coil.

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

4. The lens driving device according to claim 1, wherein: The magnet includes a first magnet configured to interact with the first coil and a second magnet configured to interact with the second coil, and The first coil and the second coil are configured to move the holder along the optical axis.

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

6. The lens driving device according to claim 2, wherein: 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, wherein the terminal portion is connected to a terminal of the substrate, and Wherein, the housing includes a groove formed on the upper surface of the housing at a position corresponding to the terminal of the substrate.

7. The lens driving device according to claim 1, wherein: The magnet includes a first magnet configured to interact with the first coil, wherein the first magnet comprises a first surface facing the first coil, wherein, in a direction perpendicular to the first surface of the first magnet, the first coil includes a first portion that does not overlap with the first magnet, and Wherein, when viewed from the inside of the housing, at least a portion of the first portion of the first coil is covered by the housing.

8. The lens driving device according to claim 1, comprising a driver IC disposed on the substrate, in, The driver IC includes a sensing portion configured to detect the magnet, wherein the magnet comprises 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, and 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 of the first coil and the other end portion of the first coil are coupled to the substrate.

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

Images