Lens drive device, camera device and optical equipment

Abstract

A first embodiment of the present invention relates to a lens driving device including a base, a first holder disposed in the base, a second holder disposed in the first holder, first to third magnets disposed in the base, a first coil disposed in the first holder and interacting with the first magnet, a second coil disposed in the second holder and interacting with the second magnet, and a third coil disposed in the second holder and interacting with the third magnet.

Description

[Technical Field]

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

[0002] A camera device is a device that takes photographs or videos of a subject, and is attached to optical devices such as smartphones, drones, vehicles, etc.

[0003] The camera device is equipped with an autofocus function that automatically adjusts the focus according to the distance of the subject, and an image stabilization function that prevents the focus from being shaken by the user's hand.

[0004] The autofocus and image stabilization functions are performed by the electromagnetic interaction between the magnet and the coil.

[0005] However, in conventional lens driving devices, the magnet, which does not require electrical connection, is placed in the moving part, and the coil is placed in the fixed part. In this case, the magnet, which is heavier than the coil, is placed in the moving part, which causes a problem of increased current consumption.

[0006] In particular, in recent years, as image sensors have become more pixelated, the lens diameter has increased, and the weight of the lens has also increased, making this problem more serious.

[0007] Furthermore, in conventional lens driving devices, the guide structure for driving the OIS-x axis and the guide structure for driving the OIS-y axis are arranged on separate layers, which creates the problem of increasing the height of the camera device in the optical axis direction. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] KR10-2015-0118005A Summary of the Invention [Problem to be solved by the invention]

[0009] This embodiment aims to provide a lens driving device that reduces the current consumed in performing the autofocus function and image stabilization function by placing a coil, which is lighter than a magnet, in the moving part.

[0010] Furthermore, by integrally forming the guide structure for driving the OIS-x axis and the guide structure for driving the OIS-y axis, we aim to provide a lens driving device that minimizes the height in the optical axis direction. [Means for solving the problem]

[0011] A lens driving device according to a first embodiment of the present invention may include a base, a first holder disposed in the base, a second holder disposed in the first holder, first to third magnets disposed in the base, a first coil disposed in the first holder and interacting with the first magnet, a second coil disposed in the second holder and interacting with the second magnet, and a third coil disposed in the second holder and interacting with the third magnet.

[0012] Interaction between the first coil and the first magnet causes the first holder to move in the optical axis direction, interaction between the second coil and the second magnet causes the second holder to move in a first direction perpendicular to the optical axis direction, and interaction between the third coil and the third magnet causes the second holder to move in a second direction perpendicular to both the optical axis direction and the first direction.

[0013] The second holder can move in the optical axis direction together with the first holder due to the interaction between the first coil and the first magnet.

[0014] The base may include a first side and a second side arranged opposite each other, and a third side and a fourth side arranged opposite each other, and the first magnet may be arranged on the first side of the base, the second magnet may be arranged on the second side of the base, and the third magnet may be arranged on the third side of the base.

[0015] The second holder may include a first side and a second side arranged opposite each other, and a third side and a fourth side arranged opposite each other, the first coil may be arranged between the first side of the second holder and the first magnet, the second coil may be arranged between the second side of the second holder and the second magnet, and the third coil may be arranged between the third side of the second holder and the third magnet.

[0016] The device may include a first substrate including a first portion disposed on the first holder, a second portion disposed on the second side of the second holder, and a third portion disposed on the third side of the second holder, wherein the first coil is disposed on the first portion of the first substrate, the second coil is disposed on the second portion of the first substrate, and the third coil is disposed on the third portion of the first substrate.

[0017] The first substrate may include a fourth portion disposed between the fourth side surface of the second holder and the first holder, and the fourth portion of the first substrate may include a terminal.

[0018] The lens driving device includes a second substrate arranged on the base, the second substrate including a main body arranged on the base and an extension extending from the main body, the extension including a first terminal coupled to the terminal of the first substrate, the main body including a second terminal electrically connected to the first terminal, and at least a portion of the extension can move together with the first holder.

[0019] The lens driving device may include a first ball disposed between the base and the first holder.

[0020] The lens driving device may include a yoke disposed on the first portion of the first substrate, the yoke generating an attractive force with the first magnet.

[0021] The lens driving device may include a second ball disposed between the first holder and the second holder.

[0022] The lens driving device includes a first elastic member arranged on the upper surface of the second holder, a second elastic member arranged on the lower surface of the first holder, and a third elastic member connecting the first elastic member and the second elastic member, the first holder includes a main body portion and a pressure portion connected to the upper surface of the main body portion, the second elastic member is arranged on the lower surface of the main body portion, and the second ball is arranged between the pressure portion of the first holder and the second holder.

[0023] The second ball can guide the second holder to move relative to the first holder in a first direction and a second direction perpendicular to the optical axis direction.

[0024] The lens driving device may include a first sensor disposed on the first portion of the first substrate and sensing the first magnet, a second sensor disposed on the second portion of the first substrate and sensing the second magnet, and a third sensor disposed on the third portion of the first substrate and sensing the third magnet.

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

[0026] The optical device according to the first embodiment of the present invention may include a main body, a camera device disposed on the main body, and a display disposed on the main body and configured to output at least one of a video and an image captured by the camera device.

[0027] A lens driving device according to a second embodiment of the present invention may include a fixed portion, a first moving portion arranged within the fixed portion, a second moving portion arranged within the first moving portion, a first driving portion that moves the first moving portion in an optical axis direction, a second driving portion that moves the second moving portion in a first direction perpendicular to the optical axis direction, a third driving portion that moves the second moving portion in a second direction perpendicular to the optical axis direction and the first direction, a first ball arranged between the first moving portion and the second moving portion so that the first moving portion and the second moving portion overlap in the optical axis direction, a wire arranged parallel to the optical axis direction, a first elastic member that connects a first area of the wire to the first moving portion, and a second elastic member that connects a second area of the wire to the second moving portion.

[0028] The second area of the wire may be positioned higher than the first area.

[0029] The first moving part may include an upper plate disposed higher than the second moving part, and the first ball may be disposed between the upper plate of the first moving part and the second moving part.

[0030] The first elastic member may include an outer portion connected to the first moving portion, and the second elastic member may include an inner portion connected to the second moving portion, and in the optical axis direction, the distance between the first area and the second area of the wire may be longer than the distance between the outer portion of the first elastic member and the inner portion of the second elastic member.

[0031] The first elastic member may include an outer portion connected to the first moving portion, a connecting portion connected to the wire, and a connecting portion connecting the outer portion and the connecting portion, and the connecting portion of the first elastic member may be positioned lower than the outer portion of the first elastic member.

[0032] The second elastic member may include an inner portion connected to the second moving portion, a connecting portion connected to the wire, and a connecting portion connecting the inner portion and the connecting portion, and the connecting portion of the second elastic member may be positioned higher than the inner portion of the second elastic member.

[0033] When viewed from above, the first ball may be disposed in a space formed by the inner portion, the coupling portion, and the connecting portion of the second elastic member.

[0034] The second moving part includes a first protrusion and a second protrusion formed on an upper surface of the second moving part, the inner part of the second elastic member includes a first area connected to the first protrusion and a second area connected to the second protrusion, the wire includes a first wire arranged in a first corner area of the fixed part, the connecting part of the second elastic member includes a first connecting part connected to the first wire, and the connecting part of the second elastic member includes a first connecting part connecting the first area of the inner part to the first connecting part and a second connecting part connecting the second area of the inner part to the first connecting part.

[0035] The coupling portion of the first elastic member may include a first coupling portion coupled to the first wire, and the connecting portion of the first elastic member may include a first connecting portion and a second connecting portion connecting the outer portion of the first elastic member and the first coupling portion of the first elastic member, and when viewed from below, the first and second connecting portions of the first elastic member may be symmetrical with respect to a virtual line connecting the optical axis and the first corner area of the fixing portion.

[0036] The wire includes first to fourth wires respectively arranged in first to fourth corner areas of the fixed portion, the first elastic member includes first to fourth elastic units corresponding to the first to fourth wires, the first to fourth elastic units being spaced apart from each other, and the second elastic member may be integrally formed.

[0037] The first driving unit may include a first coil arranged on the first moving unit and a first magnet arranged on the fixed unit, and the second driving unit may include a second coil arranged on the second moving unit and a second magnet arranged on the fixed unit.

[0038] The third driving unit may include a third coil disposed on the second moving unit and a third magnet disposed on the fixed unit.

[0039] The device may include a first substrate including a first portion disposed on the first moving portion, a second portion disposed on a first side of the second moving portion, and a third portion disposed on a second side of the second moving portion, wherein the first coil is disposed on the first portion of the first substrate, the second coil is disposed on the second portion of the first substrate, and the third coil is disposed on the third portion of the first substrate.

[0040] The second substrate includes a main body portion disposed on the fixed portion and an extension portion extending from the main body portion, the extension portion including a terminal connected to a terminal of the first substrate, and at least a portion of the extension portion can move together with the first movable portion.

[0041] A camera device according to a second embodiment of the present invention may include a printed circuit board, an image sensor disposed on the printed circuit board, the lens driving device disposed on the printed circuit board, and a lens connected to the lens driving device.

[0042] The optical device according to the second embodiment of the present invention may include a main body, a camera device disposed on the main body, and a display disposed on the main body and configured to output at least one of a video and an image captured by the camera device.

[0043] A lens driving device according to a third embodiment of the present invention includes a fixed portion, a first moving portion arranged within the fixed portion, a second moving portion arranged within the first moving portion, a first driving portion that moves the first moving portion in the optical axis direction, a second driving portion that moves the second moving portion in a first direction perpendicular to the optical axis direction, a third driving portion that moves the second moving portion in a second direction perpendicular to the optical axis direction and the first direction, a ball arranged between the fixed portion and the first moving portion, and an elastic member that connects the first moving portion and the second moving portion, and the first driving portion can include a first coil arranged in the first moving portion and a first magnet arranged in the fixed portion.

[0044] The ball may not overlap the second moving part in the optical axis direction.

[0045] The elastic member may include a first elastic member connected to the first moving portion, a second elastic member connected to the second moving portion, and a wire connecting the first elastic member and the second elastic member.

[0046] The first elastic member may include an outer portion connected to the first moving portion, a connecting portion connected to the wire, and a connecting portion connecting the outer portion and the connecting portion.

[0047] The outer portion of the first elastic member and the connecting portion of the first elastic member may be disposed at the same height.

[0048] The second elastic member may include an inner portion connected to the second moving portion, a connecting portion connected to the wire, and a connecting portion connecting the inner portion to the connecting portion of the second elastic member.

[0049] The inner portion of the second elastic member and the connecting portion of the first elastic member may be disposed at the same height.

[0050] The second driving unit may include a second coil disposed on the second moving unit and a second magnet disposed on the fixed unit.

[0051] The third driving unit may include a third coil disposed on the second moving unit and a third magnet disposed on the fixed unit.

[0052] The device may include a first substrate including a first portion disposed on the first moving portion, a second portion disposed on a first side of the second moving portion, and a third portion disposed on a second side of the second moving portion, wherein the first coil is disposed on the first portion of the first substrate, the second coil is disposed on the second portion of the first substrate, and the third coil is disposed on the third portion of the first substrate.

[0053] The second substrate includes a main body portion disposed on the fixed portion and an extension portion extending from the main body portion, the extension portion including a terminal connected to a terminal of the first substrate, and at least a portion of the extension portion can move together with the first movable portion.

[0054] The ball can guide the first moving part to move in the optical axis direction relative to the fixed part, and the elastic member can guide the second moving part to move in the first direction and the second direction relative to the first moving part.

[0055] The magnet may include a yoke disposed between the first coil and the first moving part, and acting as an attractive force with the first magnet.

[0056] A camera device according to a third embodiment of the present invention may include a printed circuit board, an image sensor disposed on the printed circuit board, the lens driving device disposed on the printed circuit board, and a lens connected to the lens driving device.

[0057] The optical device according to the third embodiment of the present invention may include a main body, the camera device disposed on the main body, and a display disposed on the main body and configured to output at least one of a video and an image captured by the camera device. [Effects of the Invention]

[0058] According to this embodiment, the coil, which is lighter in weight than the magnet, is disposed in the moving part, so that the current consumed in carrying out the autofocus function and the image stabilization function can be reduced.

[0059] Furthermore, by integrally forming the guide structure for driving the OIS-x axis and the guide structure for driving the OIS-y axis, the height of the lens driving device in the optical axis direction can be minimized.

[0060] This allows the protruding height of the camera device on the smartphone to be minimized.

[0061] Furthermore, the OIS guide structure of the second embodiment of the present invention can maintain the close contact state of the OIS guide balls without a separate preload member. [Brief explanation of the drawings]

[0062] [Figure 1] 1 is a conceptual diagram of a lens driving device according to a first embodiment of the present invention. [Figure 2] 1 is a perspective view of a lens driving device according to a first embodiment of the present invention. [Figure 3] FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. [Figure 4] FIG. 3 is a cross-sectional view taken along the line BB in FIG. 2. [Figure 5] 1 is an exploded perspective view of a lens driving device according to a first embodiment of the present invention. [Figure 6] 1 is a perspective view of a lens driving device according to a first embodiment of the present invention with a cover removed. [Figure 7] FIG. 7 is an enlarged view of a part of FIG. 6. [Figure 8] 7 is a perspective view of the lens driving device in the state of FIG. 6, seen from a direction different from that of FIG. 6. [Figure 9] 1 is a perspective view of a lens driving device according to a first embodiment of the present invention, with a fixed portion and some components omitted. [Figure 10]1 is a bottom perspective view of a moving part of a lens driving device according to a first embodiment of the present invention. [Figure 11] 1 is a bottom perspective view of a moving section and related components of a lens driving device according to a first embodiment of the present invention, with a cover removed. [Figure 12] 1 is a perspective view illustrating a base and a second substrate of a lens driving device according to a first embodiment of the present invention. [Figure 13] 1 is a perspective view illustrating a moving unit and a second substrate of a lens driving device according to a first embodiment of the present invention. [Figure 14] 14 is a bottom perspective view of the lens driving device in the state of FIG. 13, seen from a direction different from that of FIG. 13. FIG. [Figure 15] 15 is a bottom perspective view of the lens driving device in the state shown in FIG. 14 with the cover and the second substrate removed. [Figure 16] 16 is a bottom perspective view of the lens driving device in the state shown in FIG. 15 with the first holder removed. FIG. [Figure 17] 17 is a bottom view of the lens driving device in the state shown in FIG. 16. [Figure 18] 1 is a plan view of a lens driving device according to a first embodiment of the present invention with a cover and a pressure member of a first holder removed therefrom. [Figure 19] 2 is a perspective view illustrating a second moving unit, a substrate, and related components of the lens driving device according to the first embodiment of the present invention. FIG. [Figure 20] 20A and 20B are a bottom view and a partially enlarged view of the lens driving device in the state of FIG. 19. [Figure 21] 1 is a perspective view of a first holder, a second substrate, and related components of a lens driving device according to a first embodiment of the present invention. [Figure 22] 1 is a bottom perspective view illustrating a driving unit, a substrate, an elastic member, etc. of a lens driving device according to a first embodiment of the present invention. [Figure 23] 1 is a plan view illustrating a driving section, a substrate, and an elastic member of a lens driving device according to a first embodiment of the present invention. [Figure 24] 1 is a perspective view illustrating a first substrate and a coil of a lens driving device according to a first embodiment of the present invention. [Figure 25]FIG. 2 is a perspective view illustrating a second substrate of the lens driving device according to the first embodiment of the present invention. [Figure 26] 1 is a cross-sectional perspective view of a lens driving device according to a first embodiment of the present invention, with a pressure member of a first holder removed. [Figure 27] FIG. 27 is a cross-sectional perspective view showing a state in which components such as a pressure unit of the first holder in FIG. 26 have been added. [Figure 28-30] 28 is a diagram illustrating autofocus driving of a lens driving device according to a first embodiment of the present invention. Fig. 28 is a cross-sectional view illustrating the state of a moving part in an initial state in which no current is applied to a first coil. Fig. 29 is a cross-sectional view illustrating the state in which a forward current is applied to the first coil and the moving part has moved upward in the optical axis direction. Fig. 30 is a cross-sectional view illustrating the state in which a reverse current is applied to the first coil and the moving part has moved downward in the optical axis direction. [Figure 31-33] 31 is a diagram illustrating the image stabilization drive of the lens driving device according to the first embodiment of the present invention. Fig. 31 is a cross-sectional view illustrating the state of the moving unit in an initial state in which no current is applied to the second coil and the third coil. Fig. 32 is a cross-sectional view illustrating the state in which a current is applied to the second coil and the second moving unit moves in the x-axis direction perpendicular to the optical axis. Fig. 33 is a cross-sectional view illustrating the state in which a current is applied to the third coil and the second moving unit moves in the y-axis direction perpendicular to both the optical axis and the x-axis. [Figure 34] 1 is an exploded perspective view of a camera device according to a first embodiment of the present invention. [Figure 35] 1 is a perspective view of an optical apparatus according to a first embodiment of the present invention. [Figure 36] FIG. 10 is a perspective view of an optical device according to a modified example. [Figure 37] FIG. 10 is a conceptual diagram of a lens driving device according to a second embodiment of the present invention. [Figure 38] FIG. 10 is a perspective view of a lens driving device according to a second embodiment of the present invention. [Figure 39] FIG. 39 is a cross-sectional view taken along line AA in FIG. 38. [Figure 40] FIG. 39 is a cross-sectional view taken along the line BB in FIG. 38. [Figure 41]FIG. 39 is a cross-sectional view taken along CC in FIG. 38. [Figure 42] FIG. 10 is a cross-sectional view of a lens driving device according to a second embodiment of the present invention, viewed from above along a cross section perpendicular to the optical axis. [Figure 43] FIG. 10 is an exploded perspective view of a lens driving device according to a second embodiment of the present invention. [Figure 44] FIG. 10 is a perspective view of a lens driving device according to a second embodiment of the present invention with the cover removed. [Figure 45] FIG. 45 is an enlarged view of a part of FIG. 44. [Figure 46a] FIG. 45 is a perspective view of FIG. 44 seen from a different direction. [Figure 46b] FIG. 47 is a perspective view illustrating a state in which the metal members of the AF moving unit in FIG. 46 are omitted. [Figure 47] FIG. 10 is a perspective view illustrating a fixing portion and related configuration of a lens driving device according to a second embodiment of the present invention. [Figure 48] FIG. 10 is a perspective view illustrating a moving unit and related configuration of a lens driving device according to a second embodiment of the present invention. [Figure 49] This is a front view of Figure 48. [Figure 50] FIG. 10 is a cross-sectional perspective view illustrating an AF guide ball and related components of a lens driving device according to a second embodiment of the present invention. [Figure 51] FIG. 49 is a perspective view of FIG. 48 seen from a different direction. [Figure 52] FIG. 52 is a perspective view of FIG. 51 with the lid removed. [Figure 53] FIG. 10 is a bottom view of an AF moving unit and related components of a lens driving device according to a second embodiment of the present invention. [Figure 54] FIG. 54 is a bottom perspective view of FIG. 53 as viewed from another direction. [Figure 55] FIG. 55 is an enlarged view of a part of FIG. 54. [Figure 56] FIG. 10 is a perspective view illustrating an OIS moving unit and related configuration of a lens driving device according to a second embodiment of the present invention. [Figure 57a] FIG. 57 is an enlarged view of a portion of FIG. 56. [Figure 57b] FIG. 57b is a cross-sectional view taken along line AA in FIG. 57a. [Figure 58a] 10 is a cross-sectional view illustrating a pressure applying structure for an OIS guide ball of a lens driving device according to a second embodiment of the present invention. FIG. [Figure 58b] 10 is a cross-sectional view illustrating a coupling structure between an elastic member and a wire in a lens driving device according to a second embodiment of the present invention. FIG. [Figure 59] FIG. 57 is a bottom perspective view of FIG. 56 viewed from another direction. [Figure 60] FIG. 10 is a perspective view illustrating an inner substrate and an outer substrate of a lens driving device according to a second embodiment of the present invention. [Figure 61] FIG. 10 is a perspective view illustrating an elastic member and a wire of a lens driving device according to a second embodiment of the present invention. [Figure 62-64] 62 is a diagram illustrating the autofocus drive of a lens driving device according to a second embodiment of the present invention. Fig. 62 is a cross-sectional view illustrating the state of the moving part in the initial state when no current is applied to the AF coil. Fig. 63 is a cross-sectional view illustrating the state when a forward current is applied to the AF coil and the moving part has moved upward in the optical axis direction. Fig. 64 is a cross-sectional view illustrating the state when a reverse current is applied to the AF coil and the moving part has moved downward in the optical axis direction. [Figure 65-67] 65 is a diagram illustrating the image stabilization drive of a lens driving device according to a second embodiment of the present invention. Fig. 65 is a cross-sectional view illustrating the state of the moving unit in the initial state when no current is applied to the OIS-x coil and the OIS-y coil. Fig. 66 is a cross-sectional view illustrating the state when current is applied to the OIS-x coil and the OIS moving unit moves in the x-axis direction perpendicular to the optical axis. Fig. 67 is a cross-sectional view illustrating the state when current is applied to the OIS-y coil and the OIS moving unit moves in the y-axis direction perpendicular to both the optical axis and the x-axis. [Figure 68] FIG. 10 is an exploded perspective view of a camera device according to a second embodiment of the present invention. [Figure 69] FIG. 10 is a perspective view of an optical apparatus according to a second embodiment of the present invention. [Figure 70] FIG. 10 is a perspective view of an optical device according to a modified example. [Figure 71]FIG. 10 is a conceptual diagram of a lens driving device according to a third embodiment of the present invention. [Figure 72] FIG. 10 is a perspective view of a lens driving device according to a third embodiment of the present invention. [Figure 73] FIG. 73 is a cross-sectional view taken along line AA in FIG. 72. [Figure 74] FIG. 73 is a cross-sectional view taken along the line BB in FIG. 72. [Figure 75] FIG. 73 is a cross-sectional view taken along CC in FIG. 72. [Figure 76] FIG. 76 is an enlarged view of a portion of FIG. 75. [Figure 77] FIG. 10 is a cross-sectional view of a lens driving device according to a third embodiment of the present invention, viewed from above along a cross section perpendicular to the optical axis. [Figure 78] FIG. 10 is an exploded perspective view of a lens driving device according to a third embodiment of the present invention. [Figure 79] FIG. 10 is a perspective view of a lens driving device according to a third embodiment of the present invention with the cover removed. [Figure 80] FIG. 80 is an enlarged view of a portion of FIG. 79. [Figure 81] FIG. 81 is a perspective view of FIG. 80 seen from a different direction. [Figure 82] FIG. 10 is a perspective view illustrating a fixing portion and related configuration of a lens driving device according to a third embodiment of the present invention. [Figure 83] FIG. 10 is a perspective view illustrating a moving unit and related configuration of a lens driving device according to a third embodiment of the present invention. [Figure 84] This is a front view of Figure 83. [Figure 85] FIG. 10 is a cross-sectional perspective view illustrating an AF guide ball and related components of a lens driving device according to a third embodiment of the present invention. [Figure 86] FIG. 84 is a perspective view of FIG. 83 seen from a different direction. [Figure 87] FIG. 87 is a perspective view of FIG. 86 with the lid removed. [Figure 88] FIG. 10 is a bottom view of an AF moving unit and related components of a lens driving device according to a third embodiment of the present invention. [Figure 89] FIG. 89 is a bottom perspective view of FIG. 88 seen from another direction. [Figure 90] FIG. 10 is a perspective view illustrating an OIS moving unit and related configuration of a lens driving device according to a third embodiment of the present invention. [Figure 91] FIG. 10 is a cross-sectional view illustrating the arrangement of elastic members in a lens driving device according to a third embodiment of the present invention. [Figure 92] FIG. 91 is a bottom perspective view of FIG. 90 viewed from another direction. [Figure 93] FIG. 10 is a perspective view illustrating an inner substrate and an outer substrate of a lens driving device according to a third embodiment of the present invention. [Figure 94] FIG. 10 is a perspective view illustrating an elastic member and a wire of a lens driving device according to a third embodiment of the present invention. [Figures 95-97] 9A and 9B are diagrams illustrating autofocus driving of a lens driving device according to a third embodiment of the present invention. Fig. 95 is a cross-sectional view illustrating the state of the moving part in the initial state when no current is applied to the AF coil. Fig. 96 is a cross-sectional view illustrating the state when a forward current is applied to the AF coil and the moving part has moved upward in the optical axis direction. Fig. 97 is a cross-sectional view illustrating the state when a reverse current is applied to the AF coil and the moving part has moved downward in the optical axis direction. [Figures 98-100] 9A and 9B are diagrams illustrating image stabilization drive of a lens driving device according to a third embodiment of the present invention. Fig. 98 is a cross-sectional view illustrating the state of the moving unit in the initial state when no current is applied to the OIS-x coil and the OIS-y coil. Fig. 99 is a cross-sectional view illustrating the state when current is applied to the OIS-x coil and the OIS moving unit moves in the x-axis direction perpendicular to the optical axis. Fig. 100 is a cross-sectional view illustrating the state when current is applied to the OIS-y coil and the OIS moving unit moves in the y-axis direction perpendicular to both the optical axis and the x-axis. [Figure 101] FIG. 10 is an exploded perspective view of a camera device according to a third embodiment of the present invention. [Figure 102] FIG. 10 is a perspective view of an optical apparatus according to a third embodiment of the present invention. [Figure 103] FIG. 10 is a perspective view of an optical device according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0063] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0064] However, the technical concept of the present invention is not limited to the described embodiments and can be realized in various different forms, and one or more of the components between the embodiments can be arbitrarily combined or substituted within the scope of the technical concept of the present invention.

[0065] Furthermore, unless otherwise clearly defined and described, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as meanings that are commonly understood by a person of ordinary skill in the art to which the present invention belongs, and commonly used terms, such as predefined terms, may be interpreted in light of the contextual meaning of the relevant art.

[0066] Furthermore, the terms used in the examples of the present invention are intended to describe the examples and are not intended to limit the present invention.

[0067] In this specification, the singular can include the plural unless otherwise specified in the context, and when it is stated as "A and at least one (or more) of B and C," it can include one or more of all possible combinations of A, B, and C.

[0068] Furthermore, when describing components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. are used to distinguish the components from other components, and the terms do not limit the nature, order, or sequence of the components.

[0069] It should be noted that when a component is described as being "coupled," "coupled," or "connected" to another component, it can include not only the case where the component is directly "coupled," "coupled," or "connected" to the other component, but also the case where the component is "coupled," "coupled," or "connected" by another component between the component and the other component.

[0070] Furthermore, when described as being formed or disposed "above" or "below" each component, "above" or "below" includes not only the case where two components are in direct contact with each other, but also the case where one or more other components are formed or disposed between the two components. Furthermore, when described as "above" or "below," it can include not only the meaning of the upward direction but also the meaning of the downward direction based on one component.

[0071] The "optical axis (see OA in FIG. 28) direction" used below is defined as the optical axis direction of the lens and / or image sensor connected to the lens driving device.

[0072] 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. That is, the horizontal direction may be a direction perpendicular to the optical axis. Therefore, the horizontal direction may include the "x-axis direction" and the "y-axis direction."

[0073] The term "autofocus (AF) function" used below is defined as a function that automatically focuses on a subject by adjusting the distance from the image sensor by moving the lens along the optical axis according to the distance of the subject so that a clear image of the subject can be obtained on the image sensor. Furthermore, the term "autofocus feedback (CLAF, closed-loop autofocus) control" is defined as a function that senses the distance between the image sensor and the lens and controls the position of the lens in real time with feedback to improve the accuracy of focus adjustment.

[0074] As used below, "optical image stabilization (OIS) function" is defined as a function that moves or tilts the lens in a direction perpendicular to the optical axis to offset camera shake in order to prevent shaking of images or videos caused by camera shake. Furthermore, "closed-loop autofocus (CLAF) control" is defined as a function that senses the position of the lens relative to the image sensor and provides feedback (feedback) to control the lens position in real time to improve the accuracy of camera shake correction.

[0075] Hereinafter, one of the "AF movement unit 1200" and the "OIS movement unit 1300" may be referred to as a "first movement unit" and the other as a "second movement unit."

[0076] Hereinafter, one of the "AF driving unit 1400," "OIS-x driving unit 1500," and "OIS-y driving unit 1600" may be referred to as the "first driving unit," the other as the "second driving unit," and the other as the "third driving unit."

[0077] Hereinafter, one of the "AF magnet 1410," "OIS-x magnet 1510," and "OIS-y magnet 1610" may be referred to as the "first magnet," the other as the "second magnet," and the remaining one as the "third magnet."

[0078] Hereinafter, one of the "AF coil 1420," "OIS-x coil 1520," and "OIS-y coil 1620" may be referred to as the "first coil," the other as the "second coil," and the remaining one as the "third coil."

[0079] Hereinafter, one of the "AF sensor 1430," "OIS-x sensor 1530," and "OIS-y sensor 1630" may be referred to as the "first sensor," the other as the "second sensor," and the remaining one as the "third sensor."

[0080] Hereinafter, one of the "inner substrate 1710" and the "outer substrate 1720" may be referred to as the "first substrate" and the other as the "second substrate."

[0081] Hereinafter, either the "AF guide ball 1810" or the "OIS guide ball 1820" may be referred to as the "first ball," and the other may be referred to as the "second ball."

[0082] Hereinafter, either the "lower elastic member 1910" or the "upper elastic member 1920" may be referred to as the "first elastic member," and the other may be referred to as the "second elastic member."

[0083] Hereinafter, one of the "AF movement unit 2200" and the "OIS movement unit 2300" may be referred to as the "first movement unit" and the other as the "second movement unit."

[0084] Hereinafter, one of the "AF driving unit 2400," "OIS-x driving unit 2500," and "OIS-y driving unit 2600" may be referred to as the "first driving unit," the other as the "second driving unit," and the other as the "third driving unit."

[0085] Hereinafter, one of the "AF magnet 2410," "OIS-x magnet 2510," and "OIS-y magnet 2610" may be referred to as the "first magnet," the other as the "second magnet," and the remaining one as the "third magnet."

[0086] Hereinafter, one of the "AF coil 2420," "OIS-x coil 2520," and "OIS-y coil 2620" may be referred to as the "first coil," the other as the "second coil," and the remaining one as the "third coil."

[0087] Hereinafter, one of the "AF sensor 2430," "OIS-x sensor 2530," and "OIS-y sensor 2630" may be referred to as the "first sensor," the other as the "second sensor," and the other as the "third sensor."

[0088] Hereinafter, one of the "inner substrate 2710" and the "outer substrate 2720" may be referred to as the "first substrate" and the other as the "second substrate."

[0089] Hereinafter, either the "lower elastic member 2910" or the "upper elastic member 2920" may be referred to as the "first elastic member," and the other may be referred to as the "second elastic member."

[0090] The configuration of a lens driving device according to a first embodiment of the present invention will be described below with reference to the drawings.

[0091] 1 is a conceptual diagram of a lens driving device according to a first embodiment of the present invention, FIG. 2 is a perspective view of the lens driving device according to the first embodiment of the present invention, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, FIG. 4 is a cross-sectional view taken along line BB in FIG. 2, FIG. 5 is an exploded perspective view of the lens driving device according to the first embodiment of the present invention, FIG. 6 is a perspective view of the lens driving device according to the first embodiment of the present invention with the cover removed, FIG. 7 is an enlarged view of a part of FIG. 6, FIG. 8 is a perspective view of the lens driving device in the state of FIG. 6 as seen from a different direction than FIG. 6, and FIG. FIG. 10 is a perspective view of the lens driving device according to the first embodiment of the present invention, with a fixed portion and some components omitted; FIG. 11 is a perspective view of the lens driving device according to the first embodiment of the present invention, with a cover removed from the movable portion and related components; FIG. 12 is a perspective view of the lens driving device according to the first embodiment of the present invention, with a base and a second board; FIG. 13 is a perspective view of the lens driving device according to the first embodiment of the present invention, with a fixed portion and some components omitted; 15 is a bottom perspective view of the lens driving device as seen from a different direction than that of FIG. 13; FIG. 16 is a bottom perspective view of the lens driving device as seen in FIG. 15 with the cover and second substrate removed; FIG. 17 is a bottom view of the lens driving device as seen in FIG. 16; FIG. 18 is a plan view of the lens driving device according to the first embodiment of the present invention with the cover and the pressure unit of the first holder removed; and FIG. 19 illustrates the second moving unit, substrate, and related configuration of the lens driving device according to the first embodiment of the present invention. 20 is a bottom view and a partially enlarged view of the lens driving device in the state of FIG. 19; FIG. 21 is a perspective view of the first holder and second board and related components of the lens driving device according to the first embodiment of the present invention; FIG. 22 is a bottom perspective view illustrating the driving unit, board, elastic member, etc. of the lens driving device according to the first embodiment of the present invention; FIG. 23 is a plan view illustrating the driving unit, board, and elastic member of the lens driving device according to the first embodiment of the present invention; FIG. 24 is a perspective view illustrating the first board and coil of the lens driving device according to the first embodiment of the present invention;26 is a perspective view illustrating a second substrate of the lens driving device according to the first embodiment of the present invention, FIG. 26 is a cross-sectional perspective view of the lens driving device according to the first embodiment of the present invention with the pressure unit of the first holder removed, and FIG. 27 is a cross-sectional perspective view of the lens driving device according to the first embodiment of the present invention with the pressure unit of the first holder and other components added to FIG. 26.

[0092] The lens driving device 10 may be a voice coil motor (VCM). The lens driving device 10 may be a lens driving motor. The lens driving device 10 may be a lens driving actuator. The lens driving device 10 may include an AF module. The lens driving device 10 may include an OIS module.

[0093] The lens driving device 10 may include a fixed part 100. The fixed part 100 may be a part that is fixed relative to the moving part when the moving part moves. The moving part can move relative to the fixed part 100.

[0094] The lens driving device 10 may include a base 110. The fixing part 100 may include a base 110. The base 110 may be disposed below the first holder 210. The base 110 may be disposed below the second holder 310. The base 110 may be engaged with the cover 120. The first holder 210 and the second holder 310 may be disposed on the base 110. The first holder 210 and the second holder 310 may be disposed on a bottom plate of the base 110. The first holder 210 and the second holder 310 may be disposed within the base 110. The first holder 210 and the second holder 310 may be disposed within a side plate of the base 110.

[0095] In the first embodiment of the present invention, all of the first to third magnets 410, 510, 610 can be arranged on the base 110. All of the first to third magnets 410, 510, 610 can be arranged on the fixed part 100. That is, in the autofocus operation, all of the first to third magnets 410, 510, 610 can be maintained in a fixed state. Furthermore, in the image stabilization operation, all of the first to third magnets 410, 510, 610 can be maintained in a fixed state. In the autofocus operation, the first magnet 410 is fixed, and the first coil 420 is movable. In the image stabilization operation, the second and third magnets 510, 610 are fixed, and the second and third coils 520, 620 are movable.

[0096] The base 110 can include a bottom plate. The base 110 can include side plates. The side plates may also be called "sides." The side plates of the base 110 can extend from an upper surface of the bottom plate.

[0097] The side plates of the base 110 may include a plurality of side plates. The side plates of the base 110 may include four side plates. However, one or more of the four side plates of the base 110 may be omitted. The side plates of the base 110 may include first to fourth side plates 111, 112, 113, and 114. The base 110 may include a first side plate 111 and a second side plate 112 arranged on opposite sides to each other, and a third side plate 113 and a fourth side plate 114 arranged on opposite sides to each other.

[0098] The sides of the base 110 may include a plurality of sides. The sides of the base 110 may include four sides. However, one or more of the four sides of the base 110 may be omitted. The sides of the base 110 may include first to fourth sides. The base 110 may include a first side and a second side arranged opposite to each other, and a third side and a fourth side arranged opposite to each other.

[0099] The first magnet 410 may be disposed on a first side plate of the base 110. The second magnet 510 may be disposed on a second side plate of the base 110. The third magnet 610 may be disposed on a third side plate of the base 110.

[0100] The first side plate 111 of the base 110 may include a groove 111a. The groove 111a may be a "first ball receiving groove." The first ball 810 may be disposed in the groove 111a. The groove 111a may be in direct contact with the first ball 810. The groove 111a may be disposed in the optical axis direction. The groove 111a may include a plurality of grooves. The groove 111a may include two grooves. The two grooves may be disposed parallel to each other. The groove 111a may include a first groove that contacts the first ball 810 at two points and a second groove that contacts the first ball 810 at one point. In a modified example, the first groove and the second groove may both contact the first ball 810 at two points.

[0101] The second side plate 112 of the base 110 may include a protrusion 112a. The protrusion 112a may protrude outward. The legs 722 of the second substrate 720 may be disposed above and below the protrusion 112a. Grooves may be formed in the protrusion 112a to prevent interference even when the legs 722 of the second substrate 720 move.

[0102] The base 110 may include a step 115. The step 115 may be formed at a lower end of an outer surface of the base 110. The step 115 may protrude from the outer surface of the base 110. A side plate 122 of the cover 120 may be disposed on the step 115 of the base 110.

[0103] The lens driving device 10 may include a cover 120. The fixing part 100 may include the cover 120. The cover 120 may be disposed on the base 110. The cover 120 may be coupled to the base 110. The cover 120 may be fixed to the base 110. The cover 120 may house the first holder 210 therein. The cover 120 may house the second holder 310 therein. The cover 120 may be a shielding member. The cover 120 may be a shielding can.

[0104] The cover 120 may include an upper plate 141. The upper plate 141 may be disposed on the moving part. The upward movement of the moving part may be restricted by the moving part contacting the upper plate 141. The upper plate 141 may include a hole through which light passes.

[0105] The cover 120 may include side plates 142. The side plates 142 may extend from the upper plate 141. The side plates 142 may be disposed on the base 110. The side plates 142 may be disposed on stepped portions formed to protrude from the lower end of the outer surface of the base 110. The side plates 142 may include a plurality of side plates. The side plates 142 may include four side plates. The side plates 142 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.

[0106] The lens driving device 10 may include a moving unit. The moving unit may be disposed on the fixed unit 100. The moving unit may be disposed within the fixed unit 100. The moving unit may be disposed on the fixed unit 100. The moving unit may be disposed movably on the fixed unit 100. The moving unit can be moved with respect to the fixed unit 100 by a driving unit. The moving unit can move during AF driving. The moving unit can move during OIS driving. A lens may be connected to the moving unit.

[0107] The lens driving device 10 may include a first moving unit 200. The first moving unit 200 may be an "AF moving unit." The first moving unit 200 may be disposed on the fixed unit 100. The first moving unit 200 may be disposed within the fixed unit 100. The first moving unit 200 may be disposed on the fixed unit 100. The first moving unit 200 may be disposed between the fixed unit 100 and the second moving unit 300. The first moving unit 200 may be disposed movably on the fixed unit 100. The first moving unit 200 can be moved in the optical axis direction relative to the fixed unit 100 by a first driving unit. The first moving unit 200 can move during AF driving.

[0108] The lens driving device 10 may include a first holder 210. The first moving unit 200 may include the first holder 210. The first holder 210 may be an "AF holder". The first holder 210 may be an "AF carrier". The first holder 210 may be disposed within the base 110. The first holder 210 may be disposed on the base 110. The first holder 210 may be disposed within the cover 120. The first holder 210 may be disposed between the base 110 and the second holder 310. The first holder 210 may be disposed to be movable in the optical axis direction.

[0109] The lens driving device 10 may include a main body 211. The first holder 210 may include the main body 211. The main body 211 may be formed separately from the pressure unit 212. A second elastic member 870 may be connected to the main body 211.

[0110] The first holder 210 may include a metal member 211a. The main body 211 may include the metal member 211a. The metal member 211a may be insert-injected into the main body 211. At least a portion of the metal member 211a may be disposed on the upper surface of the main body 211. The metal member 211a may be disposed to reinforce the strength of the main body 211.

[0111] The first holder 210 may include a groove 211b. The main body 211 may include a groove 211b. The groove 211b may be a "first ball receiving groove." The first ball 810 may be disposed in the groove 211b. The groove 211b may be in direct contact with the first ball 810. The groove 211b may be disposed in the optical axis direction. The groove 211b may include a plurality of grooves. The groove 211b may include two grooves. The two grooves may be disposed parallel to each other. The groove 211b may include a first groove that contacts the first ball 810 at two points and a second groove that contacts the first ball 810 at one point. In a modified example, the first groove and the second groove may both contact the first ball 810 at two points.

[0112] The first holder 210 may include a protrusion 211c. The body 211 may include the protrusion 211c. The protrusion 211c may be formed on an outer surface of the first holder 210. The protrusion 211c may protrude outward from the first holder 210. Legs 722 may be disposed on the upper and lower surfaces of the protrusion 211c.

[0113] The first holder 210 may include a protrusion 211d. The main body 211 may include a protrusion 211d. The protrusion 211d may be formed on the protrusion 211c. The protrusion 211d may be formed to protrude from the protrusion 211c. The protrusion 211c may be formed on at least one of the upper surface and the lower surface of the protrusion 211c. The protrusion 211c may be formed to hook onto the leg 722. In this way, the protrusion 211c can prevent the leg 722 from moving away from its fixed position.

[0114] The first holder 210 may include a hole 211e. The main body 211 may include a hole 211e. The hole 211e may be formed on an upper plate of the main body 211. The pressure member 212 may be inserted into the hole 211e. The protrusion 212a of the pressure member 212 may be inserted into the hole 211e.

[0115] The lens driving device 10 may include a pressing unit 212. The first holder 210 may include the pressing unit 212. The pressing unit 212 may be connected to an upper surface of the main body 211. The pressing unit 212 may be connected to the main body 211. The pressing unit 212 may be inserted into the main body 211 from above and connected to the main body 211. The pressing unit 212 may press the second ball 820. The pressing unit 212 may be in direct contact with the second ball 820.

[0116] The first holder 210 may include a protrusion 212a. The pressure member 212 may include a protrusion 212a. The protrusion 212a may be connected to the hole 211e of the main body 211. The protrusion 212a may include a plurality of protrusions. The protrusion 212a may include four protrusions.

[0117] The first holder 210 may include a groove 212b. The pressure member 212 may include a groove 212b. The groove 212b may be a "second ball receiving groove." The groove 212b may be formed in the protrusion 212a. The groove 212b may be formed on the lower surface of the protrusion 212a. The groove 212b may be formed in a concave shape on the lower surface of the protrusion 212a. The second ball 820 may be disposed in the groove 212b. The groove 212b may be in direct contact with the second ball 820.

[0118] The lens driving device 10 may include a lid 220. The first moving unit 200 may include the lid 220. The lid 220 may be connected to the first holder 210. The lid 220 may be connected to a lower surface of the first holder 210. The lid 220 may be connected to the first holder 210 from below. The lid 220 may include a hook 221. The hook 221 of the lid 220 may be connected to the first holder 210. The hook 211 of the lid 220 may protrude upward and be connected to a side surface of the first holder 210.

[0119] The lens driving device 10 may include a second moving unit 300. The second moving unit 300 may be an "OIS moving unit." The second moving unit 300 may be disposed in the fixed unit 100. The second moving unit 300 may be disposed within the fixed unit 100. The second moving unit 300 may be disposed on the fixed unit 100. The second moving unit 300 may be disposed within the first moving unit 200. The second moving unit 300 may be movably disposed. The second moving unit 300 can be moved in a direction perpendicular to the optical axis relative to the fixed unit 100 and the first moving unit 200 by the second driving unit. The second moving unit 300 can move when the OIS is driven.

[0120] The lens driving device 10 may include a second holder 310. The second moving unit 300 may include the second holder 310. The second holder 310 may be an "OIS holder". The second holder 310 may be an "OIS carrier". The second holder 310 may be disposed within the first holder 210. The second holder 310 may be disposed within the base 110. The second holder 310 may be disposed on the base 110. The second holder 310 may be disposed within the cover 120. The second holder 310 may be disposed so as to be movable in a direction perpendicular to the optical axis.

[0121] The second holder 310 may include an outer surface. The second holder 310 may include multiple side surfaces. The second holder 310 may include first and second side surfaces opposite each other, and third and fourth side surfaces opposite each other. The first coil 420 may be disposed between the first side surface of the second holder 310 and the first magnet 410. The second coil 520 may be disposed between the second side surface of the second holder 310 and the second magnet 510. The third coil 620 may be disposed between the third side surface of the second holder 310 and the third magnet 610.

[0122] The second holder 310 may include a first groove 311. The first groove 311 may be a "first elastic member interference prevention groove." The first groove 311 may be formed on the upper surface of the second holder 310. The first groove 311 may be formed in a concave shape on the upper surface of the second holder 310. The first groove 311 may be disposed at a position corresponding to the first elastic member 860 to prevent interference between the second holder 310 and the first elastic member 860.

[0123] The second holder 310 may include a second groove 312. The second groove 312 may be a "second ball receiving groove." A second ball 820 may be disposed in the second groove 312. The second groove 312 may be in direct contact with the second ball 820. The second groove 312 may be disposed in a direction perpendicular to the optical axis. The second groove 312 may be recessed in the optical axis direction. The second groove 312 may include multiple grooves. The second groove 312 may include four grooves. The second groove 312 may contact the second ball 820 at one point. Alternatively, the second groove 312 may contact the second ball 820 at two points. The number of contact points between the second holder 310 and the second ball 820 may change depending on the movement of the second ball 820. The second groove 312 may be formed in the first groove 311. The second groove 312 may be recessed further from the first groove 311.

[0124] The second holder 310 may include a side stopper 313. The side stopper 313 may limit the lateral stroke of the second holder 310. That is, when the second holder 310 moves to the maximum, the side stopper 313 of the second holder 310 may come into contact with one or more of the first holder 210 and the space 110. The side stopper 313 may be formed on the outer surface of the second holder 310. The side stopper 313 may protrude outward from the side surface of the second holder 310.

[0125] The lens driving device 10 may include a driving unit. The driving unit may move the moving unit relative to the fixed unit 100. The driving unit may include an AF driving unit. The driving unit may include an OIS driving unit. The driving unit may include a coil and a magnet.

[0126] The lens driving device 10 may include a first driving unit. The first driving unit may be an "AF driving unit." The first driving unit may move the first holder 210 in the optical axis direction. The first driving unit may move the first holder 210 in the optical axis direction by electromagnetic force. The first driving unit may include a coil and a magnet.

[0127] In the first embodiment of the present invention, the first holder 210 and the second holder 310 can move in the optical axis direction due to the interaction between the first coil 420 and the first magnet 410. The first coil 420, the first holder 210, and the second holder 310 can move in the optical axis direction as a unit.

[0128] The lens driving device 10 may include a first magnet 410. The first driving unit may include the first magnet 410. The first magnet 410 may be an "AF magnet." The first magnet 410 may be disposed in the base 110. The first magnet 410 may be disposed in the cover 120. The first magnet 410 may be disposed on a side plate 122 of the cover 120. The first magnet 410 may be disposed on an outer surface of the base 110. The first magnet 410 may be disposed on an inner surface of the base 110. The first magnet 410 may be fixed to the base 110. The first magnet 410 may be coupled to the base 110. The first magnet 410 may be adhered to the base 110 with an adhesive. The first magnet 410 may be disposed within the cover 120. The first magnet 410 may interact with the first coil 420. The first magnet 410 may electromagnetically interact with the first coil 420. The first magnet 410 may be disposed at a position corresponding to the first coil 420. The first magnet 410 may face the first coil 420. The first magnet 410 may face the first coil 420. The first magnet 410 may overlap the first coil 420 in a direction perpendicular to the optical axis.

[0129] The first magnet 410 may be a four-pole magnet. The first magnet 410 may include a four-pole magnetized magnet. The first magnet 410 may include a first magnet portion including a north pole and a south pole, and a second magnet portion including a north pole and a south pole. The first magnet portion and the second magnet portion may be arranged vertically. The first magnet portion and the second magnet portion may be arranged spaced apart in the vertical direction, with a neutral portion being arranged between the first magnet portion and the second magnet portion.

[0130] The lens driving device 10 may include a first coil 420. The first driving unit may include the first coil 420. The first coil 420 may be an "AF coil." The first coil 420 may interact with the first magnet 410. The first coil 420 may move in the optical axis direction. The first coil 420 may move in the optical axis direction by interacting with the first magnet 410. The first coil 420 may face the first magnet 410. The first coil 420 may be positioned corresponding to the first magnet 410. The first coil 420 may overlap the first magnet 410 in a direction perpendicular to the optical axis. The first coil 420 may be disposed on the first substrate 710. The first coil 420 may be disposed on the first portion 711 of the first substrate 740. The first coil 420 may be disposed on the first holder 210. The first coil 420 may be disposed on the first moving part 200 .

[0131] The lens driving device 10 may include a first sensor 430. The first driving unit may include the first sensor 430. The first sensor 430 may be an "AF sensor." The first sensor 430 may be a Hall sensor. The first sensor 430 may be disposed on a substrate 740. The first sensor 430 may be disposed on a first portion 711 of the substrate 740. The first sensor 430 may sense the first magnet 410. The first sensor 430 may sense movement of the first magnet 410. The movement amount or position of the first magnet 410 sensed by the first sensor 430 can be used for feedback of the autofocus drive.

[0132] The first sensor 430 may be a driver IC. The driver IC may include a sensing unit. The sensing unit may include a Hall element (Hall IC). The driver IC may be electrically connected to the first coil 420. The driver IC may supply current to the first coil 420.

[0133] The first sensor 430 may be disposed within the first coil 420. The first sensor 430 may overlap the neutral portion of the first magnet 410 in a direction perpendicular to the optical axis. In a modified example, the first sensor 430 may be disposed outside the first coil 420.

[0134] The lens driving device 10 may include a second driving unit. The second driving unit may be an "OIS-x driving unit." The second driving unit may move the second holder 310 in a first direction perpendicular to the optical axis. The second driving unit may move the second holder 310 in the first direction perpendicular to the optical axis via electromagnetic force. Furthermore, the first direction may be the x-axis direction. The second driving unit may include a coil and a magnet.

[0135] In the first embodiment of the present invention, the second holder 310 can move in a first direction perpendicular to the optical axis direction due to the interaction between the second coil 520 and the second magnet 510. Furthermore, the first direction may be the x-axis direction. The second coil 520 and the second holder 310 can move together in the x-axis direction.

[0136] The lens driving device 10 may include a second magnet 510. The second driving unit may include the second magnet 510. The second magnet 510 may be an "OIS-x magnet." The second magnet 510 may be disposed on the base 110. The second magnet 510 may be disposed on the outer surface of the base 110. The second magnet 510 may be disposed on the inner surface of the base 110. The second magnet 510 may be fixed to the base 110. The second magnet 510 may be coupled to the base 110. The second magnet 510 may be adhered to the base 110 with an adhesive. The second magnet 510 may be disposed within the cover 120. The second magnet 510 may interact with the second coil 520. The second magnet 510 may electromagnetically interact with the second coil 520. The second magnet 510 may be disposed at a position corresponding to the second coil 520. The second magnet 510 may face the second coil 520. The second magnet 510 can face the second coil 520. The second magnet 510 can overlap the second coil 520 in a direction perpendicular to the optical axis.

[0137] The second magnet 610 may be a two-pole magnet. The second magnet 510 may include a two-pole magnetized magnet. The second magnet 510 may include a north pole and a south pole.

[0138] The lens driving device 10 may include a second coil 520. The second driving unit may include the second coil 520. The second coil 520 may be an "OIS-x coil." The second coil 520 may interact with the second magnet 510. The second coil 520 may move in the x-axis direction perpendicular to the optical axis. The second coil 520 may move in the x-axis direction by interacting with the second magnet 510. The second coil 520 may face the second magnet 510. The second coil 520 may be positioned corresponding to the second magnet 510. The second coil 520 may overlap the second magnet 510 in the direction perpendicular to the optical axis. The second coil 520 may be disposed on the first substrate 710. The second coil 520 may be disposed on the second portion 712 of the first substrate 710. The second coil 520 may be disposed on the second holder 310. The second coil 520 may be disposed on the second moving part 300 .

[0139] The lens driving device 10 may include a second sensor 530. The second driving unit may include the second sensor 530. The second sensor 530 may be an "OIS-x sensor." The second sensor 530 may be disposed on the first substrate 710. The second sensor 530 may be disposed on the second portion 712 of the first substrate 710. The second sensor 530 may include a Hall sensor. The second sensor 530 may sense the second magnet 510. The second sensor 530 may sense the magnetic force of the second magnet 510. The second sensor 530 may be disposed within the second coil 520. The second sensor 530 may overlap with the second coil 520 in the optical axis direction. The second sensor 530 may face the second magnet 510. The second sensor 530 may be disposed at a position corresponding to the second magnet 510. The second sensor 530 may sense the movement of the second magnet 510. The amount of movement or position of the second magnet 510 sensed by the second sensor 530 can be used as feedback for driving the image stabilization in the x-axis direction.

[0140] The lens driving device 10 may include a third driving unit. The third driving unit may be an "OIS-y driving unit." The third driving unit may move the second holder 310 in a second direction perpendicular to both the optical axis and the first direction. The third driving unit may move the second holder 310 in the second direction perpendicular to both the optical axis and the first direction via electromagnetic force. Furthermore, the second direction may be the y-axis direction. The third driving unit may include a coil and a magnet.

[0141] In the first embodiment of the present invention, the interaction between the third coil 620 and the third magnet 610 allows the second holder 310 to move in a second direction perpendicular to both the optical axis direction and the first direction. Furthermore, the second direction may be the y-axis direction. The third coil 620 and the second holder 310 can move together in the y-axis direction.

[0142] The lens driving device 10 may include a third magnet 610. The third driving unit may include the third magnet 610. The third magnet 610 may be an "OIS-y magnet." The third magnet 610 may be disposed on the base 110. The third magnet 610 may be disposed on the outer surface of the base 110. The third magnet 610 may be disposed on the inner surface of the base 110. The third magnet 610 may be fixed to the base 110. The third magnet 610 may be coupled to the base 110. The third magnet 610 may be adhered to the base 110 with an adhesive. The third magnet 610 may be disposed within the cover 120. The third magnet 610 may interact with the third coil 620. The third magnet 610 may electromagnetically interact with the third coil 620. The third magnet 610 may be disposed at a position corresponding to the third coil 620. The third magnet 610 may face the third coil 620. The third magnet 610 can face the third coil 620. The third magnet 610 can overlap the third coil 620 in a direction perpendicular to the optical axis.

[0143] The third magnet 610 may be a two-pole magnet. The third magnet 610 may include a two-pole magnetized magnet. The third magnet 610 may include a north pole and a south pole.

[0144] The lens driving device 10 may include a third coil 620. The third driving unit may include the third coil 620. The third coil 620 may be an "OIS-y coil." The third coil 620 may interact with the third magnet 610. The third coil 620 may be disposed on the opposite side of the first coil 420 with respect to the optical axis. The third coil 620 may move in the y-axis direction, which is perpendicular to both the optical axis and the x-axis. The third coil 620 may move in the y-axis direction by interacting with the third magnet 610. The third coil 620 may face the third magnet 610. The third coil 620 may be disposed at a position corresponding to the third magnet 610. The third coil 620 may overlap the third magnet 610 in a direction perpendicular to the optical axis. The third coil 620 may be disposed on the first substrate 710. The third coil 620 may be disposed on the third portion 713 of the first substrate 710. The third coil 620 may be disposed on the second holder 310. The third coil 620 may be disposed on the second moving part 300.

[0145] The lens driving device 10 may include a third sensor 630. The third driving unit may include the third sensor 630. The third sensor 630 may be an "OIS-y sensor." The third sensor 630 may be disposed on the first substrate 710. The third sensor 630 may be disposed on a third portion 713 of the first substrate 710. The third sensor 630 may include a Hall sensor. The third sensor 630 may sense the third magnet 610. The third sensor 630 may sense the magnetic force of the third magnet 610. The third sensor 630 may be disposed within the third coil 620. The third sensor 630 may overlap the third coil 620 in the optical axis direction. The third sensor 630 may face the third magnet 610. The third sensor 630 may be disposed at a position corresponding to the third magnet 610. The third sensor 630 may sense the movement of the third magnet 610. The amount of movement or position of the third magnet 610 sensed by the third sensor 630 can be used as feedback for image stabilization drive in the y-axis direction.

[0146] The lens driving device 10 may include a substrate. The substrate may include a flexible substrate. The substrate may be electrically connected to the coil. The substrate may be electrically connected to the sensor.

[0147] The lens driving device 10 may include a first substrate 710. The first substrate 710 may be electrically connected to the coils 420, 520, and 620. The first substrate 710 may be electrically connected to the sensors 430, 530, and 630. The first substrate 710 may connect the first holder 210 and the second holder 310. The first substrate 710 may elastically connect the first holder 210 and the second holder 310. The first substrate 710 may support the second holder 310 so that it can move relative to the first holder 210. The first substrate 710 may guide the second holder 310 to move relative to the first holder 210 in a direction perpendicular to the optical axis. The first substrate 710 may include a flexible substrate. The first substrate 710 may include a flexible printed circuit board (FPCB). The first substrate 710 may include an elastic portion. The first substrate 710 may include an elastic member.

[0148] The first substrate 710 may include a first portion 711. The first portion 711 may be disposed on the first holder 210. The first coil 420 may be disposed on the first portion 711 of the first substrate 710. The first sensor 430 may be disposed on the first portion 711 of the first substrate 710. The yoke 830 may be disposed on the first portion 711 of the first substrate 710.

[0149] The first substrate 710 may include a second portion 712. The second portion 712 may be disposed on the second holder 310. The second portion 712 may be disposed on a second side of the second holder 310. The second coil 520 may be disposed on the second portion 712 of the first substrate 710. The second sensor 530 may be disposed on the second portion 712 of the first substrate 710.

[0150] The first substrate 710 may include a third portion 713. The third portion 713 may be disposed on the second holder 310. The third portion 713 may be disposed on a third side surface of the third holder 310. The third coil 620 may be disposed on the third portion 713 of the first substrate 710. The third sensor 630 may be disposed on the third portion 713 of the first substrate 710.

[0151] The first substrate 710 may include a fourth portion 714. The fourth portion 714 may be disposed between the second holder 310 and the first holder 210. The fourth portion 714 may be disposed between a fourth side of the second holder 310 and the first holder 210.

[0152] The first substrate 710 may include a terminal 714a. The fourth portion 714 of the first substrate 710 may include a terminal 714a. The terminal 714a may be electrically coupled to the coils 420, 520, and 620. The terminal 714a may be electrically coupled to the sensors 430, 530, and 630.

[0153] The first substrate 710 may include a hole 714b. The fourth portion 714 of the first substrate 710 may include a hole 714b. The hole 714b may be formed through the fourth portion 714 of the first substrate 710. The hole 714b may be disposed at a position corresponding to the side stopper 313 of the second holder 310. The hole 714b may prevent the first substrate 710 from interfering with the side stopper 313 of the second holder 310.

[0154] The lens driving device 10 may include a second substrate 720. The second substrate 720 may be disposed on the base 110. The second substrate 720 may be electrically connected to the coils 420, 520, and 620. The second substrate 720 may be electrically connected to the sensors 430, 530, and 630. The second substrate 720 may connect the first holder 210 to the base 110. The second substrate 720 may elastically connect the first holder 210 to the base 110. The second substrate 720 may support the first holder 210 movably relative to the base 110. The second substrate 720 may guide the first holder 210 to move in the optical axis direction relative to the base 110. The second substrate 720 may include a flexible substrate. The second substrate 720 may include a flexible printed circuit board (FPCB). The second substrate 720 may include an elastic portion. The second substrate 720 may include an elastic member.

[0155] The second substrate 720 may include a main body portion 721. The main body portion 721 may be disposed on the base 110. The main body portion 721 may be formed to cover the side surfaces of the base 110. The main body portion 721 may be disposed on three side surfaces of the base 110. The main body portion 721 may include two terminal portions. The two terminal portions may be disposed on opposite sides of the optical axis. The terminal portion may include a first terminal 721a.

[0156] The second substrate 720 may include a first terminal 721a. The main body 720 of the second substrate 720 may include the first terminal 721a. The first terminal 721a may be coupled to the terminal 714a of the first substrate 710. The first terminal 721a may be coupled to the terminal 714a of the first substrate 710 via solder. The first terminal 721a may be coupled to the terminal 714a of the first substrate 710 via a conductive member. The first terminal 721a may be coupled to the terminal 714a of the first substrate 710. The first terminal 721a may be electrically coupled to the terminal 714a of the first substrate 710.

[0157] The second substrate 720 may include legs 722. The legs 722 may be "extensions." The legs 722 may extend from the main body 721. At least a portion of the legs 722 may move together with the first holder 210. The extensions may extend from the main body 721. At least a portion of the extensions may move together with the first holder 210. The legs 722 may include multiple legs. The legs 722 may include a first leg and a second leg. The second leg may be disposed below the first leg.

[0158] The second substrate 720 may include a second terminal 722a. The leg 722 of the second substrate 720 may include the second terminal 722a. The second terminal 722a may be electrically connected to the first terminal 721a. The second terminal 722a may be disposed at a lower end of the base 110. The second terminal 722a may be connected to the printed circuit board 50. The second terminal 722a may be connected to a terminal of the printed circuit board 50 via solder. The second terminal 722a may be connected to a terminal of the printed circuit board 50 via a conductive member. The second terminal 722a may be connected to a terminal of the printed circuit board 50. The second terminal 722a may be electrically connected to a terminal of the printed circuit board 50.

[0159] The lens driving device 10 may include a guide member. The guide member may include a ball. The guide member may include a pin. The guide member may include a cylindrical member. The guide member can guide the movement of the movable part relative to the fixed part 100 in a specific direction.

[0160] The lens driving device 10 may include a first ball 810. The first ball 810 may be an "AF guide ball." The first ball 810 can guide the movement of the first holder 210 relative to the base 110 in the optical axis direction. The first ball 810 may be disposed between the base 110 and the first holder 210. The first ball 810 may be disposed between the base 110 and the first holder 210 in the first direction. The first ball 810 may be disposed in the groove 111a of the base 110. The first ball 810 may be disposed in the first groove 211b of the first holder 210. The first balls 810 may include a 1-1 ball that contacts the base 110 and the first holder 210 at four points and a 1-2 ball that contacts the base 110 and the first holder 210 at three points. The first ball 810 may be spherical. The first ball 810 may be made of metal. The surface of first ball 810 may be coated with grease.

[0161] The first balls 810 may include a plurality of balls. The first balls 810 may include eight balls. Four of the first balls 810 may be disposed on one side of the first magnet 410, and the remaining four of the first balls 810 may be disposed on the other side of the first magnet 410.

[0162] The lens driving device 10 may include a second ball 820. The second ball 820 may be an "OIS guide ball." The second ball 820 can guide the movement of the second holder 310 relative to the first holder 210 in a direction perpendicular to the optical axis. The second ball 820 may be disposed between the first holder 210 and the second holder 310. The second ball 820 may be disposed between the first holder 210 and the second holder 310 in the optical axis direction.

[0163] The second ball 820 may be disposed between the pressure member 212 of the first holder 210 and the second holder 310. The second ball 820 may be pressed between the first holder 210 and the second holder 310 by the pressure of the elastic member 850. The pressure member 212 may press the second ball 820 downward when connected to the main body 211. The pressure member 212 may press the second ball 820 toward the second holder 310 when connected to the main body 211. Furthermore, the restoring force of the elastic member 850 allows the second holder 310 to press the second ball 820 toward the pressure member 212. As a result, the second ball 820 may be pressed between the pressure member 212 and the second holder 310.

[0164] The second ball 820 may guide the second holder 310 to move in a first direction and a second direction perpendicular to the optical axis direction relative to the first holder 210. That is, the second ball 820 may guide the second holder 310 to move in the x-axis direction and the y-axis direction. That is, the second ball 820 may guide movement in both the x-axis direction and the y-axis direction. For reference, compared to a comparative example in which a ball guiding the x-axis direction and a ball guiding the y-axis direction are separately provided, the first embodiment of the present invention, which includes an integrated ball guiding the x-axis direction and a ball guiding the y-axis direction, may minimize the size of the lens driving device 10. In particular, the height of the lens driving device 10 in the optical axis direction may be reduced. As a result, the height protruding from the smartphone, i.e., the shoulder height, may be minimized. The second ball 820 may include multiple balls. The second ball 820 may include four balls.

[0165] The lens driving device 10 may include a yoke 830. The yoke 830 may be disposed on the first portion 711 of the first substrate 710. An attractive force may be generated between the yoke 830 and the first magnet 410. The yoke 830 may be disposed at a position corresponding to the first magnet 410. The yoke 830 may be made of metal. The attractive force between the yoke 830 and the first magnet 410 may press the first ball 810 between the base 110 and the first holder 210. That is, the attractive force between the yoke 830 and the first magnet 410 may maintain the first ball 810 in contact with the base 110 and the first holder 210.

[0166] The lens driving device 10 may include an elastic member 850. The elastic member 850 may be formed to pressurize the second ball 820. The elastic member 850 may be formed to guide both the OIS-x axis drive and the OIS-y axis drive using only the second ball 820. The elastic member 850 may include a leaf spring. The elastic member 850 may include a wire. The elastic member 850 may have elasticity. The elastic member 850 may be made of metal.

[0167] The lens driving device 10 may include a first elastic member 860. The first elastic member 860 may be an "upper elastic member." The first elastic member 860 may be a leaf spring. The first elastic member 860 may have elasticity. The first elastic member 860 may be disposed on the upper surface of the second holder 310. The first elastic member 860 may be disposed on the second holder 310. The first elastic member 860 may be disposed on the upper part of the second holder 310. The first elastic member 860 may be disposed on top of the second holder 310. The first elastic member 860 may be disposed perpendicular to the optical axis.

[0168] The lens driving device 10 may include a second elastic member 870. The second elastic member 870 may be a "lower elastic member." The second elastic member 870 may be a leaf spring. The second elastic member 870 may have elasticity. The second elastic member 870 may be disposed on the lower surface of the first holder 210. The second elastic member 870 may be disposed on the first holder 210. The second elastic member 870 may be disposed on the lower part of the first holder 210. The second elastic member 870 may be disposed below the first holder 210. The second elastic member 870 may be disposed on the lower surface of the main body 721. The second elastic member 870 may be connected to the lower surface of the main body 721. The second elastic member 870 may be disposed perpendicular to the optical axis.

[0169] The lens driving device 10 may include a third elastic member 880. The third elastic member 880 may be a "side elastic member." The third elastic member 880 may be a wire. The third elastic member 880 may be a wire spring. The third elastic member 880 may be a suspension wire. The third elastic member 880 may have elasticity. The third elastic member 880 may connect the first elastic member 860 and the second elastic member 870. The third elastic member 880 may elastically connect the first elastic member 860 and the second elastic member 870. The third elastic member 880 may be arranged parallel to the optical axis.

[0170] Hereinafter, autofocus (AF) driving of a lens driving device according to a first embodiment of the present invention will be described with reference to the drawings.

[0171] 28 to 30 are diagrams illustrating autofocus driving of the lens driving device according to the first embodiment of the present invention. Fig. 28 is a cross-sectional view illustrating the state of the moving part in the initial state when no current is applied to the first coil. Fig. 29 is a cross-sectional view illustrating the state when a forward current is applied to the first coil and the moving part has moved upward in the optical axis direction. Fig. 30 is a cross-sectional view illustrating the state when a reverse current is applied to the first coil and the moving part has moved downward in the optical axis direction.

[0172] The moving part may be arranged at a position spaced apart from both the upper plate 121 of the cover 120 and the base 110 from an initial position where no current is applied to the first coil 420. Further, the moving part may be the first moving part 200. Further, the moving part may include first and second moving parts 200, 300.

[0173] When a forward current is applied to the first coil 420, the first coil 420 can move upward in the optical axis direction due to electromagnetic interaction between the first coil 420 and the first magnet 410 (see FIG. 29(a)). Furthermore, the first holder 210 can move upward in the optical axis direction together with the first coil 420. Furthermore, the second holder 310 and the lens can move upward in the optical axis direction together with the first holder 210. Accordingly, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor through the lens may be adjusted.

[0174] When a reverse current is applied to the first coil 420, the first coil 420 can move downward in the optical axis direction due to electromagnetic interaction between the first coil 420 and the first magnet 410 (see FIG. 30b). Furthermore, the first holder 210 can move downward in the optical axis direction together with the first coil 420. Furthermore, the second holder 310 and the lens can move downward in the optical axis direction together with the first holder 210. Accordingly, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor through the lens may be adjusted.

[0175] Meanwhile, during the movement of the first coil 420, the first sensor 430 moves together with the first coil 420 and can sense the amount of movement and position of the lens in the optical axis direction by sensing the strength of the magnetic field of the first magnet 410. The amount of movement and position of the lens in the optical axis direction sensed by the first sensor 430 can be used for autofocus feedback control.

[0176] Hereinafter, optical image stabilization (OIS) driving of a lens driving device according to a first embodiment of the present invention will be described with reference to the drawings.

[0177] 31 to 33 are diagrams illustrating the image stabilization drive of the lens driving device according to the first embodiment of the present invention. Fig. 31 is a cross-sectional view illustrating the state of the moving part in the initial state in which no current is applied to the second coil and the third coil. Fig. 32 is a cross-sectional view illustrating the state in which a current is applied to the second coil and the second moving part moves in the x-axis direction perpendicular to the optical axis. Fig. 33 is a cross-sectional view illustrating the state in which a current is applied to the third coil and the second moving part moves in the y-axis direction perpendicular to both the optical axis and the x-axis.

[0178] 31, the moving part may be placed in an initial position where no current is applied to the second coil 520 and the third coil 620. At this time, the moving part may be the second moving part 300.

[0179] When a current is applied to the second coil 520, electromagnetic interaction between the second coil 520 and the second magnet 510 causes the second coil 520 to move in the x-axis direction, which is perpendicular to the optical axis (see FIG. 32a). At this time, the second holder 310 can move in the x-axis direction together with the second coil 520. Furthermore, the lens can move in the x-axis direction together with the second holder 310. More specifically, when a forward current is applied to the second coil 520, the second coil 520, the second holder 310, and the lens can move in one direction on the x-axis. Furthermore, when a reverse current is applied to the second coil 520, the second coil 520, the second holder 310, and the lens can move in the other direction on the x-axis.

[0180] When a current is applied to the third coil 620, electromagnetic interaction between the third coil 620 and the third magnet 610 causes the third coil 620 to move in the y-axis direction, which is perpendicular to the optical axis (see FIG. 33b). At this time, the second holder 310 can move in the y-axis direction together with the third coil 620. Furthermore, the lens can move in the y-axis direction together with the second holder 310. More specifically, when a forward current is applied to the third coil 620, the third coil 620, the second holder 310, and the lens can move in one direction on the y-axis. Furthermore, when a reverse current is applied to the third coil 620, the third coil 620, the second holder 310, and the lens can move in the other direction on the y-axis.

[0181] Meanwhile, the second sensor 530 can sense the strength of the magnetic field of the second magnet 510 and detect the amount of movement and position of the second coil 520. The amount of movement and position sensed by the second sensor 530 can be used for x-axis direction image stabilization feedback control. The third sensor 630 can sense the strength of the magnetic field of the third magnet 610 and detect the amount of movement and position of the third coil 620. The amount of movement and position sensed by the third sensor 630 can be used for y-axis direction image stabilization feedback control.

[0182] A camera device according to a first embodiment of the present invention will be described below with reference to the drawings.

[0183] FIG. 34 is an exploded perspective view of the camera device according to the first embodiment of the present invention.

[0184] The camera device 10A may include a camera module.

[0185] The camera device 10A may include a lens module 20. The lens module 20 may include at least one lens. The lens may be disposed at a position corresponding to the image sensor 60. The lens module 20 may include a lens and a barrel. The lens module 20 may be coupled to a holder 210 of the lens driving device 10. The lens module 20 may be coupled to the holder 210 by a screw connection and / or an adhesive. The lens module 20 may move integrally with the holder 210.

[0186] The camera device 10A may include a filter 30. The filter 30 can help block light of a specific frequency band from passing through the lens module 20 and entering the image sensor 60. The filter 30 may be arranged parallel to the xy plane. The filter 30 may be arranged between the lens module 20 and the image sensor 60. The filter 30 may be arranged on the sensor base 40. In a modified example, the filter 30 may be arranged on the base 110. The filter 30 can include an infrared filter. The infrared filter can block light in the infrared range from entering the image sensor 60.

[0187] The camera device 10A may include a sensor base 40. The sensor base 40 may be disposed between the lens driver 10 and the printed circuit board 50. The sensor base 40 may include a protrusion 41 on which the filter 30 is disposed. An opening may be formed in the portion of the sensor base 40 on which the filter 30 is disposed so that light passing through the filter 30 can enter the image sensor 60. An adhesive member may bond or adhere the base 310 of the lens driver 10 to the sensor base 40. The adhesive member may also serve to prevent foreign matter from entering the interior of the lens driver 10. The adhesive member may include one or more of epoxy, a heat-curing adhesive, and an ultraviolet-curing adhesive.

[0188] The camera device 10A may include a printed circuit board (PCB) 50. The printed circuit board 50 may be a substrate or a circuit board. The lens driver 10 may be disposed on the printed circuit board 50. A sensor base 40 may be disposed between the printed circuit board 50 and the lens driver 10. The printed circuit board 50 may be electrically connected to the lens driver 10. An image sensor 60 may be disposed on the printed circuit board 50. The printed circuit board 50 may include various circuits, elements, a control unit, etc. for converting an image formed on the image sensor 60 into an electrical signal and transmitting the signal to an external device.

[0189] The camera device 10A may include an image sensor 60. The image sensor 60 may be configured to form an image when light passing through the lens and the filter 30 is incident on the image sensor 60. The image sensor 60 may be mounted on a printed circuit board 50. The image sensor 60 may be electrically connected to the printed circuit board 50. For example, the image sensor 60 may be connected to the printed circuit board 50 using surface mounting technology (SMT). For another example, the image sensor 60 may be connected to the printed circuit board 50 using flip chip technology. The image sensor 60 may be disposed so that its optical axis coincides with that of a lens. That is, the optical axis of the image sensor 60 and the optical axis of the lens may be aligned. The image sensor 60 may convert light irradiated onto an effective image area of the image sensor 60 into an electrical signal. The image sensor 60 may be any of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID.

[0190] The camera device 10A may include a motion sensor 70. The motion sensor 70 may be mounted on the printed circuit board 50. The motion sensor 70 may be electrically connected to the control unit 80 via a circuit pattern provided on the printed circuit board 50. The motion sensor 70 may output rotational angular velocity information according to the movement of the camera device 10A. The motion sensor 70 may include a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0191] The camera device 10A may include a control unit 80. The control unit 80 may be disposed on the printed circuit board 50. The control unit 80 may be electrically connected to the coils 330 of the lens driving device 10. The control unit 80 may individually control the direction, strength, amplitude, etc. of the current supplied to the coils 330. The control unit 80 may perform an autofocus function and / or an image stabilization function by controlling the lens driving device 10. Furthermore, the control unit 80 may perform autofocus feedback control and / or image stabilization feedback control for the lens driving device 10.

[0192] The camera device 10A may include a connector 90. The connector 90 may be electrically connected to the printed circuit board 50. The connector 90 may include a port for electrically connecting to an external device.

[0193] An optical apparatus according to a first embodiment of the present invention will now be described with reference to the drawings.

[0194] FIG. 35 is a perspective view of the optical device according to the first embodiment of the present invention, and FIG. 36 is a perspective view of the optical device according to a modified example.

[0195] The optical device 1 may include one or more of a mobile terminal, a mobile phone, a portable terminal, a mobile terminal, a smartphone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), and a navigation system. The optical device 1 may also include any device for taking images or photographs.

[0196] The optical device 1 may include a main body 20. The optical device 1 may include a camera device 10A. The camera device 10A may be disposed in the main body 20. The camera device 10A may photograph an object. The optical device 1 may include a display. The display may be disposed in the main body 20. The display may output one or more of a video and an image photographed by the camera device 10A. The display may be disposed on a first surface of the main body 20. The camera device 10A may be disposed on one or more of the first surface and a second surface opposite the first surface of the main body 20. As shown in FIG. 22, the camera device 10A may have triple cameras arranged vertically. As shown in FIG. 23, the camera device 10A-1 may have triple cameras arranged horizontally.

[0197] The configuration of a lens driving device according to a second embodiment of the present invention will be described below with reference to the drawings.

[0198] 37 is a conceptual diagram of a lens driving device according to a second embodiment of the present invention, FIG. 38 is a perspective view of the lens driving device according to the second embodiment of the present invention, FIG. 39 is a cross-sectional view taken along line AA in FIG. 38, FIG. 40 is a cross-sectional view taken along line BB in FIG. 38, FIG. 41 is a cross-sectional view taken along line CC in FIG. 38, FIG. 42 is a cross-sectional view of the lens driving device according to the second embodiment of the present invention as seen from above along a cross section perpendicular to the optical axis, FIG. 43 is an exploded perspective view of the lens driving device according to the second embodiment of the present invention, and FIG. 44 is a perspective view of the lens driving device according to the second embodiment of the present invention with the cover removed. 46b is a perspective view illustrating the state in which the metal member of the AF moving part in FIG. 46 has been removed, FIG. 47 is a perspective view illustrating a fixed part and related components of a lens driving device according to a second embodiment of the present invention, FIG. 48 is a perspective view illustrating the moving part and related components of a lens driving device according to a second embodiment of the present invention, FIG. 49 is a front view of FIG. 48, and FIG. 50 is a perspective view illustrating the AF guide ball of a lens driving device according to a second embodiment of the present invention. 51 is a perspective view of FIG. 48 seen from a different direction, FIG. 52 is a perspective view of FIG. 51 with the cover removed, FIG. 53 is a bottom view of the AF moving unit and related components of the lens driving device according to the second embodiment of the present invention seen from below, FIG. 54 is a bottom perspective view of FIG. 53 seen from a different direction, FIG. 55 is an enlarged view of a part of FIG. 54, FIG. 56 is a perspective view of the OIS moving unit and related components of the lens driving device according to the second embodiment of the present invention, FIG. 57a is an enlarged view of a part of FIG. 57b is a cross-sectional view taken along line AA in FIG. 57a, FIG. 58a is a cross-sectional view illustrating the pressure application structure of the OIS guide ball of the lens driving device according to the second embodiment of the present invention, FIG. 58b is a cross-sectional view illustrating the connection structure of the elastic member and wire of the lens driving device according to the second embodiment of the present invention, FIG. 59 is a bottom perspective view of FIG. 56 taken from a different direction, FIG. 60 is a perspective view illustrating the inner substrate and outer substrate of the lens driving device according to the second embodiment of the present invention, and FIG. 61 is a perspective view illustrating the elastic member and wire of the lens driving device according to the second embodiment of the present invention.

[0199] 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. The lens driving device 1010 may include an OIS module.

[0200] The lens driving device 1010 may include a fixed portion 1100. The fixed portion 1100 may be a portion that is fixed relative to the moving portion when the moving portion moves. The moving portion can move relative to the fixed portion 1100.

[0201] The lens driving device 1010 may include a base 1110. The fixing part 1100 may include the base 1110. The base 1110 may be disposed below the AF holder 1210. The base 1110 may be disposed below the OIS holder 1310. The base 1110 may be connected to the cover 1120. The AF holder 1210 and the OIS holder 1310 may be disposed on the base 1110. The AF holder 1210 and the OIS holder 1310 may be disposed on a bottom plate of the base 1110. The AF holder 1210 and the OIS holder 1310 may be disposed within the base 1110. The AF holder 1210 and the OIS holder 1310 may be disposed within a side plate of the base 1110.

[0202] In a second embodiment of the present invention, the AF magnet 1410, the OIS-x magnet 1510, and the OIS-y magnet 1610 may all be arranged on the base 1110. The AF magnet 1410, the OIS-x magnet 1510, and the OIS-y magnet 1610 may all be arranged on the fixed part 1100. That is, in autofocus operation, the AF magnet 1410, the OIS-x magnet 1510, and the OIS-y magnet 1610 can all be maintained in a fixed state. Furthermore, in image stabilization operation, the AF magnet 1410, the OIS-x magnet 1510, and the OIS-y magnet 1610 can all be maintained in a fixed state. In autofocus operation, the AF magnet 1410 is fixed, and the AF coil 1420 can move. In image stabilization operation, the OIS-x and OIS-y magnets 1510, 1610 are fixed, and the OIS-x and OIS-y coils 1520, 1620 are movable.

[0203] The base 1110 can include a bottom plate. The base 1110 can include side plates. The side plates may also be called "sides." The side plates of the base 1110 can extend from an upper surface of the bottom plate.

[0204] The side plates of the base 1110 may include a plurality of side plates. The side plates of the base 1110 may include four side plates. However, one or more of the four side plates of the base 1110 may be omitted. The side plates of the base 1110 may include first to fourth side plates 1111, 1112, 1113, and 1114. The base 1110 may include a first side plate 1111 and a second side plate 1113 arranged on opposite sides to each other, and a third side plate 1112 and a fourth side plate 1114 arranged on opposite sides to each other.

[0205] The sides of the base 1110 may include a plurality of sides. The sides of the base 1110 may include four sides. However, one or more of the four sides of the base 1110 may be omitted. The sides of the base 1110 may include first to fourth sides. The base 1110 may include a first side and a second side arranged opposite to each other, and a third side and a fourth side arranged opposite to each other.

[0206] The AF magnet 1410 may be disposed on a first side plate 1111 of the base 1110. The OIS-x magnet 1510 may be disposed on a second side plate 1113 of the base 1110. The OIS-y magnet 1610 may be disposed on a third side plate 1112 of the base 1110.

[0207] The first side plate 1111 of the base 1110 may include a groove 1111a. The groove 1111a may be an "AF guide ball receiving groove." The AF guide ball 1810 may be disposed in the groove 1111a. The groove 1111a can be in direct contact with the AF guide ball 1810. The groove 1111a may be disposed in the optical axis direction. The groove 1111a may include a plurality of grooves. The groove 1111a may include two grooves. The two grooves may be disposed parallel to each other. The groove 1111a may include a first groove that contacts the AF guide ball 1810 at two points and a second groove that contacts the AF guide ball 1810 at one point. In a modified example, both the first groove and the second groove can contact the AF guide ball 1810 at two points.

[0208] The second side plate 1113 of the base 1110 may include a protrusion. The protrusion may protrude outward. The extensions 1722 of the outer substrate 1720 may be disposed above and below the protrusion. A groove may be formed in the protrusion to prevent interference even when the extensions 1722 of the outer substrate 1720 move.

[0209] The base 1110 may include a step 1115. The step 1115 may be formed at a lower end of the outer surface of the base 1110. The step 1115 may protrude from the outer surface of the base 1110. A side plate 1122 of the cover 1120 may be disposed on the step 1115 of the base 1110.

[0210] The lens driving device 1010 may include a cover 1120. The fixing part 1100 may include the cover 1120. The cover 1120 may be disposed on the base 1110. The cover 1120 may be coupled to the base 1110. The cover 1120 may be fixed to the base 1110. The cover 1120 may house the AF holder 1210 therein. The cover 1120 may house the OIS holder 1310 therein. The cover 1120 may be a shielding member. The cover 1120 may be a shielding can.

[0211] The cover 1120 may include an upper plate 1141. The upper plate 1141 may be disposed on the moving part. The upward movement of the moving part may be restricted by the moving part contacting the upper plate 1141. The upper plate 1141 may include a hole through which light passes.

[0212] The cover 1120 may include a side plate 1142. The side plate 1142 may extend from the upper plate 1141. The side plate 1142 may be disposed on the base 1110. The side plate 1142 may be disposed on a stepped portion formed to protrude from a lower end of the outer surface of the base 1110. The side plate 1142 may include a plurality of side plates. The side plate 1142 may include four side plates. The side plate 1142 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.

[0213] The lens driving device 1010 may include a moving unit. The moving unit may be disposed on the fixed unit 1100. The moving unit may be disposed within the fixed unit 1100. The moving unit may be disposed on the fixed unit 1100. The moving unit may be disposed movably on the fixed unit 1100. The moving unit can be moved with respect to the fixed unit 1100 by a driving unit. The moving unit can move during AF driving. The moving unit can move during OIS driving. A lens may be connected to the moving unit.

[0214] The lens driving device 1010 may include an AF moving unit 1200. The AF moving unit 1200 may be disposed in the fixed unit 1100. The AF moving unit 1200 may be disposed within the fixed unit 1100. The AF moving unit 1200 may be disposed on the fixed unit 1100. The AF moving unit 1200 may be disposed between the fixed unit 1100 and the OIS moving unit 1300. The AF moving unit 1200 may be disposed movably on the fixed unit 1100. The AF moving unit 1200 can be moved in the optical axis direction relative to the fixed unit 1100 by an AF driving unit 1400. The AF moving unit 1200 can move during AF driving.

[0215] The lens driving device 1010 may include an AF holder 1210. The AF movement unit 1200 may include an AF holder 1210. The AF holder 1210 may be an "AF carrier." The AF holder 1210 may be disposed within the base 1110. The AF holder 1210 may be disposed on the base 1110. The AF holder 1210 may be disposed within the cover 1120. The AF holder 1210 may be disposed between the base 1110 and the OIS holder 1310. The AF holder 1210 may be disposed so as to be movable in the optical axis direction.

[0216] The AF holder 1210 may include a protrusion. The protrusion may be connected to the lower elastic member 1910. The lower elastic member 1910 may include a hole connected to the protrusion of the AF holder 1210. In a modified example, the AF holder 1210 may include a groove for accommodating adhesive instead of the protrusion. Furthermore, the lower elastic member 1910 may include a hole disposed in the groove of the AF holder 1210. The protrusion of the AF holder 1210 may be formed on the lower surface of the AF holder 1210. The protrusion of the AF holder 1210 may protrude from the lower surface of the AF holder 1210.

[0217] The protrusion of the AF holder 1210 may include a plurality of protrusions. The protrusion of the AF holder 1210 may include a first protrusion 1211 and a second protrusion 1212. The outer portion 1911 of the lower elastic member 1910 may include a first area connected to the first protrusion 1211 and a second area 1212 connected to the first protrusion 1212. The wire 1930 may include a first wire 1931 disposed in a first corner area of the fixing part 1100. The connecting portion 1912 of the lower elastic member 1910 may include a first connecting portion connected to the first wire 1931. The connecting portion 1913 of the lower elastic member 1910 may include a first connecting portion 1913-1 and a second connecting portion 1913-2 that connect the outer portion 1911 of the lower elastic member 1910 and the first connecting portion of the lower elastic member 1910. The connecting portion 1913 of the lower elastic member 1910 may include a first connecting portion 1913-1 connecting the first area of the outer portion 1911 to the first connecting portion, and a second connecting portion 1913-2 connecting the second area of the outer portion 1911 to the first connecting portion. That is, the connecting portion 1913 of the lower elastic member 1910 may be provided with two connecting portions to connect one outer portion 1911 to one connecting portion 1912.

[0218] When viewed from below, the first and second connecting portions 1913-1 and 1913-2 of the lower elastic member 1910 may be symmetrical with respect to a virtual line connecting the optical axis and the first corner area of the fixing portion 1100.

[0219] The wire 1930 may include a second wire 1933 disposed in a second corner area of the fixing part 1100. The connecting part 1912 of the lower elastic member 1910 may include a second connecting part connected to the second wire 1933. The wire 1930 may include a third wire 1932 disposed in a third corner area of the fixing part 1100. The connecting part 1912 of the lower elastic member 1910 may include a third connecting part connected to the third wire 1932. The wire 1930 may include a fourth wire 1934 disposed in a fourth corner area of the fixing part 1100. The connecting part 1912 of the lower elastic member 1910 may include a fourth connecting part connected to the fourth wire 1934. The first corner area of the fixing part 1100 may be disposed diagonally opposite the second corner area, and the third corner area may be disposed diagonally opposite the fourth corner area.

[0220] The AF holder 1210 may include a protrusion 1213. The protrusion 1213 may be formed on the outer surface of the AF holder 1210. The protrusion 1213 may protrude outward from the AF holder 1210. Extensions 1722 of the outer substrate 1720 may be disposed on the upper and lower surfaces of the protrusion 1213.

[0221] The AF holder 1210 may include a groove 1214. The groove 1214 may be an "AF guide ball receiving groove." The AF guide ball 1810 may be disposed in the groove 1214. The groove 1214 may be in direct contact with the AF guide ball 1810. The groove 1214 may be disposed in the optical axis direction. The groove 1214 may include a plurality of grooves. The groove 1214 may include two grooves. The two grooves may be disposed parallel to each other. The groove 1214 may include a first groove that contacts the AF guide ball 1810 at two points and a second groove that contacts the AF guide ball 1810 at one point. In a modified example, both the first groove and the second groove may contact the AF guide ball 1810 at two points.

[0222] The AF holder 1210 may include a protrusion 1215a. The protrusion 1215a may protrude from the lower surface of the upper plate of the AF holder 1210. An OIS guide ball 1820 may be disposed on the lower surface of the protrusion 1215a. The protrusion 1215a may include multiple protrusions. The protrusion 1215a may include four protrusions.

[0223] The AF holder 1210 may include a groove 1215. The groove 1215 may be an "OIS guide ball receiving groove." The groove 1215 may be formed in the protrusion 1215a. The groove 1215 may be formed on the lower surface of the protrusion 1215a. The groove 1215 may be formed concavely on the lower surface of the protrusion 1215a. An OIS guide ball 1820 may be disposed in the groove 1215. The groove 1215 may be in direct contact with the OIS guide ball 1820.

[0224] The AF holder 1210 may include a metal member 1216. The metal member 1216 may be insert-injected into the AF holder 1210. At least a portion of the metal member 1216 may be disposed on the upper surface of the AF holder 1210. The metal member 1216 may be disposed to reinforce the strength of the AF holder 1210.

[0225] The AF holder 1210 may include a groove 1217. The groove 1217 may be a "metal member accommodating groove." The groove 1217 may be formed on the upper surface of the AF holder 1210. The groove 1217 may be formed in a concave shape on the upper surface of the AF holder 1210. The metal member 1216 may be disposed in the groove 1217. The groove 1217 may be formed in a shape corresponding to the metal member 1216.

[0226] The lens driving device 1010 may include a cover 1220. The AF movement unit 1200 may include the cover 1220. The cover 1220 may be connected to the AF holder 1210. The cover 1220 may be connected to the bottom surface of the AF holder 1210. The cover 1220 may be connected to the AF holder 1210 at its bottom. The cover 1220 may include a hook 1221. The hook 1221 of the cover 1220 may be connected to the AF holder 1210. The hook 1221 of the cover 1220 may protrude from the top and be connected to a side surface of the AF holder 1210.

[0227] The lens driving device 1010 may include an OIS moving unit 1300. The OIS moving unit 1300 may be disposed in the fixed unit 1100. The OIS moving unit 1300 may be disposed within the fixed unit 1100. The OIS moving unit 1300 may be disposed on the fixed unit 1100. The OIS moving unit 1300 may be disposed within the AF moving unit 1200. The OIS moving unit 1300 may be disposed movably. The OIS moving unit 1300 can be moved in the x-axis direction perpendicular to the optical axis relative to the fixed unit 1100 and the AF moving unit 1200 by an OIS-x driving unit 1500. The OIS moving unit 1300 can be moved in the y-axis direction perpendicular to the optical axis relative to the fixed unit 1100 and the AF moving unit 1200 by an OIS-y driving unit 1600. The OIS moving unit 1300 can move when the OIS is driven.

[0228] The lens driving device 1010 may include an OIS holder 1310. The OIS moving unit 1300 may include an OIS holder 1310. The OIS holder 1310 may be an "OIS carrier." The OIS holder 1310 may be disposed in the AF holder 1210. The OIS holder 1310 may be disposed in the base 1110. The OIS holder 1310 may be disposed on the base 1110. The OIS holder 1310 may be disposed in the cover 1120. The OIS holder 1310 may be disposed so as to be movable in a direction perpendicular to the optical axis.

[0229] The OIS holder 1310 may include an outer surface. The OIS holder 1310 may include multiple side surfaces. The OIS holder 1310 may include first and second side surfaces opposite each other, and third and fourth side surfaces opposite each other. The AF coil 1420 may be disposed between the first side surface of the OIS holder 1310 and the AF magnet 1410. The OIS-x coil 1520 may be disposed between the second side surface of the OIS holder 1310 and the OIS-x magnet 1510. The OIS-y coil 1620 may be disposed between the third side surface of the OIS holder 1310 and the OIS-y magnet 1610. The AF coil 1420 may be disposed on the first side surface of the OIS holder 1310. The OIS-x coil 1520 may be disposed on the second side surface of the OIS holder 1310. The OIS-y coil 1620 may be disposed on the third side surface of the OIS holder 1310.

[0230] The OIS holder 1310 may include a groove 1311. The groove 1311 may be an "upper elastic member interference prevention groove." The groove 1311 may be formed on the upper surface of the OIS holder 1310. The groove 1311 may be formed in a concave shape on the upper surface of the OIS holder 1310. The groove 1311 may be disposed at a position corresponding to the upper elastic member 1920 so as to prevent interference between the OIS holder 1310 and the upper elastic member 1920.

[0231] The OIS holder 1310 may include grooves 1312. The grooves 1312 may be "OIS guide ball receiving grooves." The OIS guide balls 1820 may be disposed in the grooves 1312. The grooves 1312 may be in direct contact with the OIS guide balls 1820. The grooves 1312 may be disposed in a direction perpendicular to the optical axis. The grooves 1312 may be recessed in the optical axis direction. The grooves 1312 may include multiple grooves. The grooves 1312 may include four grooves. The grooves 1312 may contact the OIS guide balls 1820 at one point. Alternatively, the grooves 1312 may contact the OIS guide balls 1820 at two points. The number of contact points between the OIS holder 1310 and the OIS guide balls 1820 may change depending on the movement of the OIS guide balls 1820. The grooves 1312 may be formed in the grooves 1311. The groove 1312 may be recessed further from the groove 1311 .

[0232] Either the groove 1311 or the groove 1312 of the OIS holder 1310 can be referred to as a "first groove," and the other can be referred to as a "second groove."

[0233] The OIS holder 1310 may include side stoppers. The side stoppers may limit the lateral stroke of the OIS holder 1310. That is, when the OIS holder 1310 moves to its maximum extent, the side stoppers of the OIS holder 1310 may come into contact with one or more of the AF holder 1210 and the base 1110. The side stoppers may be formed on the outer surface of the OIS holder 1310. The side stoppers may protrude outward from the side surfaces of the OIS holder 1310.

[0234] The OIS holder 1310 may include a protrusion. The protrusion may be connected to the upper elastic member 1920. The upper elastic member 1920 may include a hole connected to the protrusion of the OIS holder 1310. In a modified example, the OIS holder 1310 may include a groove for accommodating adhesive instead of the protrusion. Furthermore, the upper elastic member 1920 may include a hole disposed in the groove of the OIS holder 1310. The protrusion of the OIS holder 1310 may be formed on the upper surface of the OIS holder 1310. The protrusion of the OIS holder 1310 may protrude from the upper surface of the OIS holder 1310.

[0235] The protrusion of the OIS holder 1310 may include a plurality of protrusions. The protrusion of the OIS holder 1310 may include a first protrusion 1314 and a second protrusion 1315. The inner portion 1921 of the upper elastic member 1920 may include a first area connected to the first protrusion 1314 and a second area 1212 connected to the second protrusion 1315. The wire 1930 may include a first wire 1931 disposed in a first corner area of the fixing part 1100. The connecting portion 1922 of the upper elastic member 1920 may include a first connecting portion connected to the first wire 1931. The connecting portion 1923 of the upper elastic member 1920 may include a first connecting portion 1923-1 and a second connecting portion 1923-2 that connect the inner portion 1921 of the upper elastic member 1920 and the first connecting portion of the upper elastic member 1920. The connecting portion 1923 of the upper elastic member 1920 may include a first connecting portion 1923-1 connecting the first area of the inner portion 1921 to the first connecting portion, and a second connecting portion 1923-2 connecting the second area of the inner portion 1921 to the first connecting portion. That is, the connecting portion 1923 of the upper elastic member 1920 may be provided with two connecting portions to connect one inner portion 1921 to one connecting portion 1922.

[0236] When viewed from below, the first and second connecting portions 1923-1 and 1923-2 of the upper elastic member 1920 may be symmetrical with respect to a virtual line connecting the optical axis and the first corner area of the fixing portion 1100.

[0237] The connecting portion 1922 of the upper elastic member 1920 may include a second connecting portion connected to the second wire 1933. The connecting portion 1922 of the upper elastic member 1920 may include a third connecting portion connected to the third wire 1932. The connecting portion 1922 of the upper elastic member 1920 may include a fourth connecting portion connected to the fourth wire 1934.

[0238] The lens driving device 1010 may include a driving unit. The driving unit may move the moving unit relative to the fixed unit 1100. The driving unit may include an AF driving unit 1400. The driving unit may include OIS driving units 1500 and 1600. The driving unit may include a coil and a magnet.

[0239] The lens driving device 1010 may include an AF driving unit 1400. The AF driving unit 1400 may move the AF moving unit 1200 in the optical axis direction. The AF driving unit 1400 may move the AF holder 1210 in the optical axis direction. The AF driving unit 1400 may move the AF holder 1210 in the optical axis direction through electromagnetic force. The AF driving unit 1400 may include a coil and a magnet.

[0240] In the second embodiment of the present invention, the AF holder 1210 and the OIS holder 1310 can move in the optical axis direction due to the interaction between the AF coil 1420 and the AF magnet 1410. The AF coil 1420, the AF holder 1210, and the OIS holder 1310 can move in the optical axis direction as a unit.

[0241] The lens driving device 1010 may include an AF magnet 1410. The AF driving unit 1400 may include an AF magnet 1410. The AF magnet 1410 may be disposed in the fixing unit 1100. The AF magnet 1410 may be disposed in the base 1110. The AF magnet 1410 may be disposed in the cover 1120. The AF magnet 1410 may be disposed on a side plate 1122 of the cover 1120. The AF magnet 1410 may be disposed on an outer surface of the base 1110. The AF magnet 1410 may be disposed on an inner surface of the base 1110. The AF magnet 1410 may be fixed to the base 1110. The AF magnet 1410 may be coupled to the base 1110. The AF magnet 1410 may be adhered to the base 1110 with an adhesive. The AF magnet 1410 may be disposed within the cover 1120. The AF magnet 1410 can interact with the AF coil 1420. The AF magnet 1410 can electromagnetically interact with the AF coil 1420. The AF magnet 1410 may be disposed at a position corresponding to the AF coil 1420. The AF magnet 1410 can face the AF coil 1420. The AF magnet 1410 can face the AF coil 1420. The AF magnet 1410 can overlap the AF coil 1420 in a direction perpendicular to the optical axis.

[0242] The AF magnet 1410 may be a four-pole magnet. The AF magnet 1410 may include a four-pole magnetized magnet. The AF magnet 1410 may include a first magnet portion including a north pole and a south pole, and a second magnet portion including a north pole and a south pole. The first magnet portion and the second magnet portion may be arranged vertically. The first magnet portion and the second magnet portion may be arranged spaced apart in the vertical direction, and a neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0243] The lens driving device 1010 may include an AF coil 1420. The AF driving unit 1400 may include an AF coil 1420. The AF coil 1420 may interact with the AF magnet 1410. The AF coil 1420 may move in the optical axis direction. The AF coil 1420 may move in the optical axis direction by interacting with the AF magnet 1410. The AF coil 1420 may face the AF magnet 1410. The AF coil 1420 may be disposed at a position corresponding to the AF magnet 1410. The AF coil 1420 may overlap the AF magnet 1410 in a direction perpendicular to the optical axis. The AF coil 1420 may be disposed on the inner substrate 1710. The AF coil 1420 may be disposed on a first portion 1711 of the inner substrate 1710. The AF coil 1420 may be disposed on the AF holder 1210. The AF coil 1420 may be disposed in the AF moving section 1200 .

[0244] In a modified example, the AF magnet 1410 may be disposed in the AF moving part 1200, and the AF coil 1420 may be disposed in the fixed part 1100. The AF magnet 1410 may be disposed in the AF holder 1210. The AF coil 1420 may be disposed in the base 1110 via a substrate.

[0245] The lens driving device 1010 may include an AF sensor 1430. The AF driving unit 1400 may include the AF sensor 1430. The AF sensor 1430 may be a Hall sensor. The AF sensor 1430 may be disposed on a substrate 1740. The AF sensor 1430 may be disposed on a first portion 1711 of the substrate 1740. The AF sensor 1430 may sense the AF magnet 1410. The AF sensor 1430 may sense movement of the AF magnet 1410. The movement amount or position of the AF magnet 1410 sensed by the AF sensor 1430 can be used as feedback for autofocus driving.

[0246] The AF sensor 1430 may be a driver IC. The driver IC may include a sensing unit. The sensing unit may include a Hall IC. The driver IC may be electrically connected to the AF coil 1420. The driver IC may supply current to the AF coil 1420.

[0247] The AF sensor 1430 may be disposed within the AF coil 1420. The AF sensor 1430 may overlap the neutral portion of the AF magnet 1410 in a direction perpendicular to the optical axis. In a modified example, the AF sensor 1430 may be disposed outside the AF coil 1420.

[0248] The lens driving device 1010 may include an OIS-x driving unit 1500. The OIS-x driving unit 1500 may move the OIS moving unit 1300 in the x-axis direction perpendicular to the optical axis direction. The OIS-x driving unit 1500 may move the OIS holder 1310 in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit 1500 may use electromagnetic force to move the OIS holder 1310 in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit 1500 may include a coil and a magnet.

[0249] In the second embodiment of the present invention, the OIS holder 1310 can move in the x-axis direction, which is perpendicular to the optical axis direction, due to the interaction between the OIS-x coil 1520 and the OIS-x magnet 1510. The OIS-x coil 1520 and the OIS holder 1310 can move together in the x-axis direction.

[0250] The lens driving device 1010 may include an OIS-x magnet 1510. The OIS-x driving unit 1500 may include an OIS-x magnet 1510. The OIS-x magnet 1510 may be disposed in the fixed unit 1100. The OIS-x magnet 1510 may be disposed in the base 1110. The OIS-x magnet 1510 may be disposed on the outer surface of the base 1110. The OIS-x magnet 1510 may be disposed on the inner surface of the base 1110. The OIS-x magnet 1510 may be fixed to the base 1110. The OIS-x magnet 1510 may be coupled to the base 1110. The OIS-x magnet 1510 may be glued to the base 1110. The OIS-x magnet 1510 may be disposed in the cover 1120. The OIS-x magnet 1510 can interact with the OIS-x coil 1520. The OIS-x magnet 1510 can electromagnetically interact with the OIS-x coil 1520. The OIS-x magnet 1510 may be disposed at a position corresponding to the OIS-x coil 1520. The OIS-x magnet 1510 can face the OIS-x coil 1520. The OIS-x magnet 1510 can face the OIS-x coil 1520. The OIS-x magnet 1510 can overlap the OIS-x coil 1520 in a direction perpendicular to the optical axis.

[0251] The second magnet 1610 may be a two-pole magnet. The OIS-x magnet 1510 may include a two-pole magnetized magnet. The OIS-x magnet 1510 may include a north pole and a south pole. The inner surface of the OIS-x magnet 1510 may be a north pole and the outer surface may be a south pole.

[0252] The lens driver 1010 may include an OIS-x coil 1520. The OIS-x driver 1500 may include an OIS-x coil 1520. The OIS-x coil 1520 may interact with the OIS-x magnet 1510. The OIS-x coil 1520 may move in the x-axis direction perpendicular to the optical axis. The OIS-x coil 1520 may move in the x-axis direction by interacting with the OIS-x magnet 1510. The OIS-x coil 1520 may face the OIS-x magnet 1510. The OIS-x coil 1520 may face the OIS-x magnet 1510. The OIS-x coil 1520 may be disposed at a position corresponding to the OIS-x magnet 1510. The OIS-x coil 1520 may overlap the OIS-x magnet 1510 in the direction perpendicular to the optical axis. The OIS-x coil 1520 may be disposed on the inner substrate 1710. OIS-x coil 1520 may be disposed on second portion 1713 of inner substrate 1710. OIS-x coil 1520 may be disposed on OIS holder 1310. OIS-x coil 1520 may be disposed on OIS moving portion 1300.

[0253] The lens driving device 1010 may include an OIS-x sensor 1530. The OIS-x driving unit 1500 may include an OIS-x sensor 1530. The OIS-x sensor 1530 may be disposed on the inner substrate 1710. The OIS-x sensor 1530 may be disposed on the second portion 1713 of the inner substrate 1710. The OIS-x sensor 1530 may include a Hall sensor. The OIS-x sensor 1530 may sense the OIS-x magnet 1510. The OIS-x sensor 1530 may sense the magnetic force of the OIS-x magnet 1510. The OIS-x sensor 1530 may be disposed within the OIS-x coil 1520. The OIS-x sensor 1530 may overlap the OIS-x coil 1520 in the optical axis direction. The OIS-x sensor 1530 may face the OIS-x magnet 1510. The OIS-x sensor 1530 may be disposed at a position corresponding to the OIS-x magnet 1510. The OIS-x sensor 1530 can sense the movement of the OIS-x magnet 1510. The amount of movement or the position of the OIS-x magnet 1510 sensed by the OIS-x sensor 1530 can be used as feedback for driving the image stabilization in the x-axis direction.

[0254] The lens driving device 1010 may include an OIS-y driving unit 1600. The OIS-y driving unit 1600 may move the OIS moving unit 1300 in the y-axis direction, which is perpendicular to both the optical axis and the x-axis direction. The OIS-y driving unit 1600 may move the OIS holder 1310 in the y-axis direction, which is perpendicular to both the optical axis and the x-axis direction. The OIS-y driving unit 1600 may use electromagnetic force to move the OIS holder 1310 in the y-axis direction, which is perpendicular to both the optical axis and the x-axis direction. The OIS-y driving unit 1600 may include a coil and a magnet.

[0255] In the second embodiment of the present invention, the OIS holder 1310 can move in the y-axis direction, which is perpendicular to both the optical axis direction and the x-axis direction, due to the interaction between the OIS-y coil 1620 and the OIS-y magnet 1610. The OIS-y coil 1620 and the OIS holder 1310 can move together in the y-axis direction.

[0256] The lens driving device 1010 may include an OIS-y magnet 1610. The OIS-y driving unit 1600 may include an OIS-y magnet 1610. The OIS-y magnet 1610 may be disposed on the fixed unit 1100. The OIS-y magnet 1610 may be disposed on the base 1110. The OIS-y magnet 1610 may be disposed on the outer surface of the base 1110. The OIS-y magnet 1610 may be disposed on the inner surface of the base 1110. The OIS-y magnet 1610 may be fixed to the base 1110. The OIS-y magnet 1610 may be coupled to the base 1110. The OIS-y magnet 1610 may be glued to the base 1110. The OIS-y magnet 1610 may be disposed within the cover 1120. The OIS-y magnet 1610 can interact with the OIS-y coil 1620. The OIS-y magnet 1610 can electromagnetically interact with the OIS-y coil 1620. The OIS-y magnet 1610 may be disposed at a position corresponding to the OIS-y coil 1620. The OIS-y magnet 1610 can face the OIS-y coil 1620. The OIS-y magnet 1610 can face the OIS-y coil 1620. The OIS-y magnet 1610 can overlap the OIS-y coil 1620 in a direction perpendicular to the optical axis.

[0257] The OIS-y magnet 1610 may be a two-pole magnet. The OIS-y magnet 1610 may include a two-pole magnetized magnet. The OIS-y magnet 1610 may include a north pole and a south pole. The inner surface of the OIS-y magnet 1610 may be a north pole and the outer surface may be a south pole.

[0258] The lens driving device 1010 may include an OIS-y coil 1620. The OIS-y driving unit 1600 may include an OIS-y coil 1620. The OIS-y coil 1620 may interact with the OIS-y magnet 1610. The OIS-y coil 1620 may be disposed on the opposite side of the AF coil 1420 with respect to the optical axis. The OIS-y coil 1620 may move in the y-axis direction, which is perpendicular to both the optical axis and the x-axis. The OIS-y coil 1620 may move in the y-axis direction by interacting with the OIS-y magnet 1610. The OIS-y coil 1620 may face the OIS-y magnet 1610. The OIS-y coil 1620 may be disposed at a position corresponding to the OIS-y magnet 1610. The OIS-y coil 1620 can overlap the OIS-y magnet 1610 in a direction perpendicular to the optical axis. The OIS-y coil 1620 may be disposed on the inner substrate 1710. The OIS-y coil 1620 may be disposed on the third portion 1712 of the inner substrate 1710. The OIS-y coil 1620 may be disposed on the OIS holder 1310. The OIS-y coil 1620 may be disposed on the OIS moving part 1300.

[0259] The lens driving device 1010 may include an OIS-y sensor 1630. The OIS-y driving unit 1600 may include the OIS-y sensor 1630. The OIS-y sensor 1630 may be disposed on the inner substrate 1710. The OIS-y sensor 1630 may be disposed on the third portion 1712 of the inner substrate 1710. The OIS-y sensor 1630 may include a Hall sensor. The OIS-y sensor 1630 may sense the OIS-y magnet 1610. The OIS-y sensor 1630 may sense the magnetic force of the OIS-y magnet 1610. The OIS-y sensor 1630 may be disposed within the OIS-y coil 1620. The OIS-y sensor 1630 may overlap the OIS-y coil 1620 in the optical axis direction. The OIS-y sensor 1630 may face the OIS-y magnet 1610. The OIS-y sensor 1630 may be disposed at a position corresponding to the OIS-y magnet 1610. The OIS-y sensor 1630 can sense the movement of the OIS-y magnet 1610. The amount of movement or the position of the OIS-y magnet 1610 sensed by the OIS-y sensor 1630 can be used as feedback for driving the image stabilization in the y-axis direction.

[0260] The lens driving device 1010 may include a substrate. The substrate may include a flexible substrate. The substrate may be electrically connected to the coil. The substrate may be electrically connected to the sensor. The substrate may be soft. The substrate may be flexible. The substrate may be a circuit board. The substrate may be a printed circuit board.

[0261] The lens driving device 1010 may include an inner substrate 1710. The inner substrate 1710 may be electrically connected to the coils 1420, 1520, and 1620. The inner substrate 1710 may be electrically connected to the sensors 1430, 1530, and 1630. The inner substrate 1710 may connect the AF holder 1210 and the OIS holder 1310. The inner substrate 1710 may elastically connect the AF holder 1210 and the OIS holder 1310. The inner substrate 1710 may support the OIS holder 1310 so that it can move relative to the AF holder 1210. The inner substrate 1710 may guide the OIS holder 1310 to move relative to the AF holder 1210 in a direction perpendicular to the optical axis. The inner substrate 1710 may include a flexible substrate. The inner substrate 1710 may include a flexible printed circuit board (FPCB). The inner substrate 1710 may include an elastic portion. The inner substrate 1710 can include a resilient member.

[0262] The inner substrate 1710 may include a first portion 1711. The first portion 1711 may be disposed on the AF movement unit 1200. The first portion 1711 may be disposed on the AF holder 1210. The AF coil 1420 may be disposed on the first portion 1711 of the inner substrate 1710. The AF sensor 1430 may be disposed on the first portion 1711 of the inner substrate 1710. The yoke 1830 may be disposed on the first portion 1711 of the inner substrate 1710.

[0263] The inner substrate 1710 may include a second portion 1713. The second portion 1713 may be disposed on the OIS holder 1310. The second portion 1713 may be disposed on a second side of the OIS holder 1310. The OIS-x coil 1520 may be disposed on the second portion 1713 of the inner substrate 1710. The OIS-x sensor 1530 may be disposed on the second portion 1713 of the inner substrate 1710.

[0264] The inner substrate 1710 may include a third portion 1712. The third portion 1712 may be disposed on the OIS holder 1310. The third portion 1712 may be disposed on a third side of the OIS holder 1310. The OIS-y coil 1620 may be disposed on the third portion 1712 of the inner substrate 1710. The OIS-y sensor 1630 may be disposed on the third portion 1712 of the inner substrate 1710.

[0265] The inner substrate 1710 may include a fourth portion 1714. The fourth portion 1714 may be disposed between the OIS holder 1310 and the AF holder 1210. The fourth portion 1714 may be disposed between a fourth side of the OIS holder 1310 and the AF holder 1210.

[0266] However, in the "first to fourth sides" of the OIS holder 1310 described in this specification, "first to fourth" are used to distinguish the sides from one another, and so they may be referred to differently as necessary. For example, the "second side" may be referred to as the "first side," and the "third side" may be referred to as the "second side."

[0267] The inner substrate 1710 may include a terminal 1714a. The fourth portion 1714 of the inner substrate 1710 may include a terminal 1714a. The terminal 1714a may be electrically coupled to the coils 1420, 1520, and 1620. The terminal 1714a may be electrically coupled to the sensors 1430, 1530, and 1630.

[0268] The inner substrate 1710 may include a hole 1714b. The fourth portion 1714 of the inner substrate 1710 may include a hole 1714b. The hole 1714b may be formed through the fourth portion 1714 of the inner substrate 1710. The hole 1714b may be disposed at a position corresponding to a side stopper of the OIS holder 1310. The hole 1714b prevents the inner substrate 1710 from interfering with the side stopper of the OIS holder 1310.

[0269] The lens driving device 1010 may include an outer substrate 1720. The outer substrate 1720 may be disposed on the base 1110. The outer substrate 1720 may be electrically connected to the coils 1420, 1520, and 1620. The outer substrate 1720 may be electrically connected to the sensors 1430, 1530, and 1630. The outer substrate 1720 may connect the AF holder 1210 to the base 1110. The outer substrate 1720 may elastically connect the AF holder 1210 to the base 1110. The outer substrate 1720 may support the AF holder 1210 so that it can move relative to the base 1110. The outer substrate 1720 may guide the AF holder 1210 to move in the optical axis direction relative to the base 1110. The outer substrate 1720 may include a flexible substrate. The outer substrate 1720 may include a flexible printed circuit board (FPCB). The outer substrate 1720 can include a resilient portion. The outer substrate 1720 can include a resilient member.

[0270] The outer substrate 1720 may include a main body portion 1721. The main body portion 1721 may be disposed on the fixed portion 1100. The main body portion 1721 may be disposed on the base 1110. The main body portion 1721 may be formed to cover the side surface of the base 1110. The main body portion 1721 may be disposed on three side surfaces of the base 1110. The main body portion 1721 may include two terminal portions. The two terminal portions may be disposed on opposite sides of the optical axis. The terminal portion may include a terminal 1721a.

[0271] The outer substrate 1720 may include a terminal 1721a. The main body 1721 of the outer substrate 1720 may include a terminal 1721a. The terminal 1721a may be electrically coupled to a terminal 1722a. The terminal 1721a may be disposed at a lower end of the base 1110. The terminal 1721a may be coupled to the printed circuit board 1050. The terminal 1721a may be coupled to a terminal of the printed circuit board 1050 via solder. The terminal 1721a may be coupled to a terminal of the printed circuit board 1050 via a conductive member. The terminal 1721a may be coupled to a terminal of the printed circuit board 1050. The terminal 1721a may be electrically coupled to a terminal of the printed circuit board 1050.

[0272] The outer substrate 1720 may include an extension 1722. The extension 1722 may be a "leg." The extension 1722 may extend from a main body 1721. At least a portion of the extension 1722 may move together with the AF movement unit 1200. At least a portion of the extension 1722 may move together with the AF holder 1210. The extension may extend from the main body 1721. The extension 1722 may include multiple legs. The extension 1722 may include a first leg and a second leg. The second leg may be disposed below the first leg.

[0273] The outer substrate 1720 may include a terminal 1722a. The extension 1722 of the outer substrate 1720 may include a terminal 1722a. The terminal 1722a may be coupled to the terminal 1714a of the inner substrate 1710. The terminal 1722a may be coupled to the terminal 1714a of the inner substrate 1710 via solder. The terminal 1722a may be coupled to the terminal 1714a of the inner substrate 1710 via an electrically conductive member. The terminal 1722a may be coupled to the terminal 1714a of the side substrate 1710. The terminal 1722a may be electrically coupled to the terminal 1714a of the side substrate 1710.

[0274] The lens driving device 1010 may include a guide member. The guide member may include a ball. The guide member may include a pin. The guide member may include a cylindrical member. The guide member may guide the movement of the moving part relative to the fixed part 1100 in a specific direction.

[0275] The lens driving device 1010 may include an AF guide ball 1810. The AF guide ball 1810 can guide movement of the AF holder 1210 relative to the base 1110 in the optical axis direction. The AF guide ball 1810 may be disposed between the base 1110 and the AF holder 1210. The AF guide ball 1810 may be disposed between the base 1110 and the AF holder 1210 in the x-axis direction. The AF guide ball 1810 may be disposed in the groove 1111a of the base 1110. The AF guide ball 1810 may be disposed in the first groove 1214 of the AF holder 1210. The AF guide balls 1810 may include a first ball 1-1 that contacts the base 1110 and the AF holder 1210 at four points and a second ball 1-2 that contacts the base 1110 and the AF holder 1210 at three points. The AF guide ball 1810 may be spherical. The AF guide ball 1810 may be made of metal. Grease may be applied to the surface of the AF guide ball 1810.

[0276] The AF guide balls 1810 may include multiple balls. The AF guide balls 1810 may include eight balls. Four AF guide balls 1810 may be disposed on one side of the AF magnet 1410, and the remaining four AF guide balls 1810 may be disposed on the other side of the AF magnet 1410.

[0277] The lens driving device 1010 may include an OIS guide ball 1820. The OIS guide ball 1820 can guide the movement of the OIS holder 1310 relative to the AF holder 1210 in a direction perpendicular to the optical axis. The OIS guide ball 1820 may be disposed between the AF holder 1210 and the OIS holder 1310. The OIS guide ball 1820 may be disposed between the AF holder 1210 and the OIS holder 1310 in the optical axis direction. The OIS guide ball 1820 can overlap with the AF movement unit 1200 and the OIS movement unit 1300 in the optical axis direction. The OIS guide ball 1820 may be disposed between the AF movement unit 1200 and the OIS movement unit 1300 in the optical axis direction.

[0278] The OIS guide ball 1820 may be disposed between the AF holder 1210 and the OIS holder 1310. The OIS guide ball 1820 may be pressed between the AF holder 1210 and the OIS holder 1310 by the pressure of an elastic member.

[0279] The OIS guide ball 1820 can guide the OIS holder 1310 to move in the x-axis and y-axis directions perpendicular to the optical axis direction relative to the AF holder 1210. That is, the OIS guide ball 1820 can guide the OIS holder 1310 to move in the x-axis and y-axis directions. That is, the OIS guide ball 1820 can guide movement in both the x-axis and y-axis directions. For reference, compared to a comparative example in which a ball guiding the x-axis direction and a ball guiding the y-axis direction are separately provided, in the second embodiment of the present invention, the ball guiding the x-axis direction and the ball guiding the y-axis direction are integrally provided, the size of the lens driving device 1010 may be minimized. In particular, the height of the lens driving device 1010 in the optical axis direction may be reduced. As a result, the height protruding from the smartphone, i.e., shoulder height, may be minimized. The OIS guide ball 1820 may include multiple balls. The OIS guide ball 1820 may include four balls.

[0280] When viewed from above, the OIS guide ball 1820 may be disposed in a space formed by the inner portion 1921, the connecting portion 1922, and the connecting portion 1923 of the upper elastic member 1920. When viewed from above, the inner portion 1921, the connecting portion 1922, and the connecting portion 1923 of the upper elastic member 1920 may form a closed curve. Furthermore, the OIS guide ball 1820 may be disposed in a space within the closed curve formed by the inner portion 1921, the connecting portion 1922, and the connecting portion 1923 of the upper elastic member 1920.

[0281] The lens driving device 1010 may include a yoke 1830. The yoke 1830 may be disposed on the first portion 1711 of the inner substrate 1710. An attractive force may be generated between the yoke 1830 and the AF magnet 1410. The yoke 1830 may be disposed at a position corresponding to the AF magnet 1410. The yoke 1830 may be formed of metal. The attractive force between the yoke 1830 and the AF magnet 1410 may press the AF guide ball 1810 between the base 1110 and the AF holder 1210. That is, the attractive force between the yoke 1830 and the AF magnet 1410 may maintain the AF guide ball 1810 in contact with the base 1110 and the AF holder 1210.

[0282] The lens driving device 1010 may include an elastic member. The elastic member may be formed to press the OIS guide ball 1820. The elastic member may be formed to guide both the OIS-x-axis drive and the OIS-y-axis drive using only the OIS guide ball 1820. The elastic member may include a leaf spring. The elastic member may include a wire. The elastic member may have elasticity. The elastic member may be made of metal.

[0283] The lens driving device 1010 may include a lower elastic member 1910. The lower elastic member 1910 may be a leaf spring. The lower elastic member 1910 may have elasticity. The lower elastic member 1910 may be disposed on the lower surface of the AF holder 1210. The lower elastic member 1910 may be disposed on the AF holder 1210. The lower elastic member 1910 may be disposed below the AF holder 1210. The lower elastic member 1910 may be disposed below the AF holder 1210. The lower elastic member 1910 may be disposed on the lower surface of the main body 1721. The lower elastic member 1910 may be connected to the lower surface of the main body 1721. The lower elastic member 1910 may be disposed perpendicular to the optical axis.

[0284] The lower elastic member 1910 may include a plurality of elastic units spaced apart from one another. The lower elastic member 1910 may include first to fourth elastic units corresponding to the first and fourth wires 1931, 1932, 1933, and 1934. The first to fourth elastic units may be spaced apart from one another.

[0285] The lower elastic member 1910 may include an outer portion 1911. The outer portion 1911 may be connected to the AF moving portion 1200. The lower elastic member 1910 may include a connecting portion 1912. The connecting portion 1912 may be connected to the wire 1930. The lower elastic member 1910 may include a connecting portion 1913. The connecting portion 1913 may connect the outer portion 1911 and the connecting portion 1912. The connecting portion 1912 of the lower elastic member 1910 may be positioned lower than the outer portion 1911 of the lower elastic member 1910.

[0286] Hereinafter, one of the outer portion 1911, the joining portion 1912, and the connecting portion 1913 of the lower elastic member 1910 may be referred to as the "first portion," the other may be referred to as the "second portion," and the other may be referred to as the "third portion." Hereinafter, one of the outer portion 1911, the joining portion 1912, and the connecting portion 1913 of the lower elastic member 1910 may be referred to as the "first area," the other may be referred to as the "second area," and the other may be referred to as the "third area."

[0287] The lens driving device 1010 may include an upper elastic member 1920. The upper elastic member 1920 may be a leaf spring. The upper elastic member 1920 may have elasticity. The upper elastic member 1920 may be disposed on the upper surface of the OIS holder 1310. The upper elastic member 1920 may be disposed on the OIS holder 1310. The upper elastic member 1920 may be disposed on the top of the OIS holder 1310. The upper elastic member 1920 may be disposed on top of the OIS holder 1310. The upper elastic member 1920 may be disposed perpendicular to the optical axis. The upper elastic member 1920 may be formed as a single unit.

[0288] The upper elastic member 1920 may include an inner portion 1921. The inner portion 1921 may be connected to the OIS movement portion 1300. The upper elastic member 1920 may include a connecting portion 1922. The connecting portion 1922 may be connected to the wire 1930. The upper elastic member 1920 may include a connecting portion 1923. The connecting portion 1923 may connect the inner portion 1921 and the connecting portion 1922. The connecting portion 1922 of the upper elastic member 1920 may be positioned higher than the inner portion 1921 of the upper elastic member 1920.

[0289] Hereinafter, one of the inner portion 1921, the joining portion 1922, and the connecting portion 1923 of the upper elastic member 1920 may be referred to as the "first portion," the other may be referred to as the "second portion," and the other may be referred to as the "third portion." Hereinafter, one of the inner portion 1921, the joining portion 1922, and the connecting portion 1923 of the upper elastic member 1920 may be referred to as the "first portion," the other may be referred to as the "second portion," and the other may be referred to as the "third portion."

[0290] The lower elastic member 1910 may connect a first area of the wire 1930 to the AF moving unit 1200. The upper elastic member 1920 may connect a second area of the wire 1930 to the OIS moving unit 1300. The second area of the wire 1930 may be positioned higher than the first area. That is, the first area of the wire 1930 may be positioned lower than the second area.

[0291] As shown in FIGS. 58a and 58b, the distance between the first area a and the second area d of the wire 1930 in the optical axis direction may be longer than the distance between the outer portion 1911b of the lower elastic member 1910 and the inner portion 1921c of the upper elastic member 1920. The first area a of the wire 1930 may be positioned lower than the outer portion 1911b of the lower elastic member 1910. A first gap (ga) may be formed between the first area a of the wire 1930 and the outer portion 1911b of the lower elastic member 1910 in the optical axis direction. The second area d of the wire 1930 may be positioned higher than the inner portion 1921c of the upper elastic member 1920. A second gap (gb) may be formed between the second area d of the wire 1930 and the inner portion 1921c of the upper elastic member 1920 in the optical axis direction.

[0292] Through this structure, the OIS guide ball 1820 may be pressed between the AF movement unit 1200 and the OIS movement unit 1300 by the lower elastic member 1910, the upper elastic member 1920, and the wire 1930. That is, through this structure, the OIS guide ball 1820 may be pressed between the AF holder 1210 and the OIS holder 1310 by the lower elastic member 1910, the upper elastic member 1920, and the wire 1930.

[0293] In a modified example, the distance between the first area a and the second area d of the wire 1930 in the optical axis direction may be the same as the distance between the outer portion 1911b of the lower elastic member 1910 and the inner portion 1921c of the upper elastic member 1920.

[0294] In a modified example, the first area a of the wire 1930 may be disposed at the same height as the outer portion 1911b of the lower elastic member 1910. Alternatively, the second area d of the wire 1930 may be disposed at the same height as the inner portion 1921c of the upper elastic member 1920.

[0295] The lens driving device 1010 may include a wire 1930. The wire 1930 may be a "side elastic member." The wire 1930 may be a wire spring. The wire 1930 may be a suspension wire. The wire 1930 may have elasticity. The wire 1930 may connect the upper elastic member 1920 and the lower elastic member 1910. The wire 1930 may elastically connect the upper elastic member 1920 and the lower elastic member 1910. The wire 1930 may be arranged parallel to the optical axis. The wire 1930 may be arranged parallel to the optical axis direction.

[0296] The wire 1930 may include a plurality of wires. The wire 1930 may include four wires. The wire 1930 may include first to fourth wires 1931, 1932, 1933, and 1934. The wire 1930 may include first to fourth wires 1931, 1932, 1933, and 1934 arranged in first to fourth corner areas of the fixing part 1100, respectively.

[0297] Hereinafter, autofocus (AF) driving of a lens driving device according to a second embodiment of the present invention will be described with reference to the drawings.

[0298] Fig. 62 to Fig. 64 are diagrams illustrating autofocus driving of a lens driving device according to a second embodiment of the present invention. Fig. 62 is a cross-sectional view illustrating the state of the moving part in the initial state when no current is applied to the AF coil. Fig. 63 is a cross-sectional view illustrating the state when a forward current is applied to the AF coil and the moving part has moved upward in the optical axis direction. Fig. 64 is a cross-sectional view illustrating the state when a reverse current is applied to the AF coil and the moving part has moved downward in the optical axis direction.

[0299] The moving unit may be arranged at a position spaced apart from both the upper plate 1121 of the cover 1120 and the base 1110 from an initial position where no current is applied to the AF coil 1420. In this case, the moving unit may be the AF moving unit 1200. Furthermore, the moving unit may include the AF moving unit 1200 and the OIS moving unit 1300.

[0300] When a forward current is applied to the AF coil 1420, the AF coil 1420 can move upward in the optical axis direction due to electromagnetic interaction between the AF coil 1420 and the AF magnet 1410 (see A in FIG. 63). At this time, the AF holder 1210 can move upward in the optical axis direction together with the AF coil 1420. Furthermore, the OIS holder 1310 and the lens can move upward in the optical axis direction together with the AF holder 1210. As a result, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor through the lens may be adjusted.

[0301] When a reverse current is applied to the AF coil 1420, the AF coil 1420 can move downward in the optical axis direction due to electromagnetic interaction between the AF coil 1420 and the AF magnet 1410 (see B in FIG. 64). At this time, the AF holder 1210 can move downward in the optical axis direction together with the AF coil 1420. Furthermore, the OIS holder 1310 and the lens can move downward in the optical axis direction together with the AF holder 1210. As a result, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor via the lens may be adjusted.

[0302] Meanwhile, during the movement of the AF coil 1420, the AF sensor 1430 moves together with the AF coil 1420 and can sense the amount of movement and position of the lens in the optical axis direction by sensing the strength of the magnetic field of the AF magnet 1410. The amount of movement and position of the lens in the optical axis direction sensed by the AF sensor 1430 can be used for autofocus feedback control.

[0303] Hereinafter, optical image stabilization (OIS) driving of a lens driving device according to a second embodiment of the present invention will be described with reference to the drawings.

[0304] Fig. 65 to Fig. 67 are diagrams illustrating the image stabilization drive of a lens driving device according to a second embodiment of the present invention. Fig. 65 is a cross-sectional view illustrating the state of the moving part in the initial state when no current is applied to the OIS-x coil and the OIS-y coil. Fig. 66 is a cross-sectional view illustrating the state when current is applied to the OIS-x coil and the OIS moving part moves in the x-axis direction perpendicular to the optical axis. Fig. 67 is a cross-sectional view illustrating the state when current is applied to the OIS-y coil and the OIS moving part moves in the y-axis direction perpendicular to both the optical axis and the x-axis.

[0305] 65, the moving part may be placed in an initial position where no current is applied to the OIS-x coil 1520 and the OIS-y coil 1620. Additionally, the moving part may be the OIS moving part 1300.

[0306] When a current is applied to the OIS-x coil 1520, electromagnetic interaction between the OIS-x coil 1520 and the OIS-x magnet 1510 causes the OIS-x coil 1520 to move in the x-axis direction, which is perpendicular to the optical axis (see FIG. 66A). Furthermore, the OIS holder 1310 moves along the x-axis together with the OIS-x coil 1520. Furthermore, the lens moves along the x-axis together with the OIS holder 1310. More specifically, when a forward current is applied to the OIS-x coil 1520, the OIS-x coil 1520, OIS holder 1310, and lens move in one direction on the x-axis. Furthermore, when a reverse current is applied to the OIS-x coil 1520, the OIS-x coil 1520, OIS holder 1310, and lens move in the other direction on the x-axis.

[0307] When a current is applied to the OIS-y coil 1620, electromagnetic interaction between the OIS-y coil 1620 and the OIS-y magnet 1610 causes the OIS-y coil 1620 to move in the y-axis direction, which is perpendicular to the optical axis (see FIG. 67b). Furthermore, the OIS holder 1310 can move in the y-axis direction together with the OIS-y coil 1620. Furthermore, the lens can move in the y-axis direction together with the OIS holder 1310. More specifically, when a forward current is applied to the OIS-y coil 1620, the OIS-y coil 1620, the OIS holder 1310, and the lens can move in one direction on the y-axis. Furthermore, when a reverse current is applied to the OIS-y coil 1620, the OIS-y coil 1620, the OIS holder 1310, and the lens can move in the other direction on the y-axis.

[0308] Meanwhile, the OIS-x sensor 1530 senses the strength of the magnetic field of the OIS-x magnet 1510 and can sense the movement amount and position of the OIS-x coil 1520. The movement amount and position sensed by the OIS-x sensor 1530 can be used for x-axis direction image stabilization feedback control. The OIS-y sensor 1630 senses the strength of the magnetic field of the OIS-y magnet 1610 and can sense the movement amount and position of the OIS-y coil 1620. The movement amount and position sensed by the OIS-y sensor 1630 can be used for y-axis direction image stabilization feedback control.

[0309] A camera device according to a second embodiment of the present invention will now be described with reference to the drawings.

[0310] FIG. 68 is an exploded perspective view of a camera device according to a second embodiment of the present invention.

[0311] The camera device 1010A may include a camera module.

[0312] The camera device 1010A may include a lens module 1020. The lens module 1020 may include at least one lens. The lens may be disposed at a position corresponding to the image sensor 1060. The lens module 1020 may include a lens and a barrel. The lens module 1020 may be coupled to the OIS holder 1310 of the lens driving device 1010. The lens module 1020 may be coupled to the OIS holder 1310 by threaded coupling and / or adhesive. The lens module 1020 may move integrally with the OIS holder 1310.

[0313] The camera device 1010A may include a filter 1030. The filter 1030 can help block light of a specific frequency band from passing through the lens module 1020 and entering 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. In a variant, the filter 1030 may be arranged on the base 1110. The filter 1030 may include an infrared filter. The infrared filter can block light in the infrared range from entering the image sensor 1060.

[0314] The camera device 1010A may include a sensor base 1040. The sensor base 1040 may be disposed between the lens driver 1010 and the printed circuit board 1050. The sensor base 1040 may include a protrusion 1041 on which the filter 1030 is disposed. An opening may be formed in the portion of the sensor base 1040 on which the filter 1030 is disposed so that light passing through the filter 1030 can enter the image sensor 1060. An adhesive member may bond or adhere the base 1310 of the lens driver 1010 to the sensor base 1040. The adhesive member may further serve to prevent foreign matter from entering the interior of the lens driver 1010. The adhesive member may include one or more of epoxy, a heat-curable adhesive, and an ultraviolet-curable adhesive.

[0315] 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. A 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. The printed circuit board 1050 may include various circuits, elements, a control unit, etc. for converting an image formed on the image sensor 1060 into an electrical signal and transmitting the signal to an external device.

[0316] The camera device 1010A may include an image sensor 1060. The image sensor 1060 may be configured to form an image by receiving light that has passed through a lens and a filter 1030. The image sensor 1060 may be mounted on a 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 connected to the printed circuit board 1050 using surface mounting technology (SMT). For another example, the image sensor 1060 may be connected to the printed circuit board 1050 using flip chip technology. The image sensor 1060 may be disposed such that its optical axis coincides with that of a lens. That is, 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 of a CCD (charge coupled device), a MOS (metal oxide semi-conductor), a CPD, and a CID.

[0317] The camera device 1010A may include a motion sensor 1070. The motion sensor 1070 may be mounted on the printed circuit board 1050. The motion sensor 1070 may be electrically connected to the control unit 1080 via a circuit pattern provided on the printed circuit board 1050. The motion sensor 1070 may output rotational angular velocity information according to the movement of the camera device 1010A. The motion sensor 1070 may include a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0318] The camera device 1010A may include a control unit 1080. The control unit 1080 may be disposed on the printed circuit board 1050. The control unit 1080 may be electrically connected to the coils 1330 of the lens driving device 1010. The control unit 1080 may individually control the direction, strength, amplitude, etc. of the current supplied to the coils 1330. The control unit 1080 may perform an autofocus function and / or an image stabilization function by controlling the lens driving device 1010. Furthermore, the control unit 1080 may perform autofocus feedback control and / or image stabilization feedback control for the lens driving device 1010.

[0319] 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.

[0320] An optical apparatus according to a second embodiment of the present invention will now be described with reference to the drawings.

[0321] FIG. 69 is a perspective view of an optical apparatus according to a second embodiment of the present invention, and FIG. 70 is a perspective view of an optical apparatus according to a modified example.

[0322] The optical device 1001 may include one or more of a mobile terminal, a mobile phone, a portable terminal, a mobile terminal, a smartphone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), and a navigation system. The optical device 1001 may also include any device for taking images or photographs.

[0323] The optical device 1001 may include a main body 1020. The optical device 1001 may include a camera device 1010A. The camera device 1010A may be disposed in the main body 1020. The camera device 1010A may photograph an object. The optical device 1001 may include a display. The display may be disposed in the main body 1020. The display may output one or more of a video and an image photographed by the camera device 1010A. The display may be disposed on a first surface of the main body 1020. The camera device 1010A may be disposed on one or more of the first surface and a second surface opposite the first surface of the main body 1020. As shown in FIG. 69, the camera device 1010A may have triple cameras arranged vertically. As shown in FIG. 70, the camera device 1010A-1 may have triple cameras arranged horizontally.

[0324] The configuration of a lens driving device according to a third embodiment of the present invention will be described below with reference to the drawings.

[0325] 71 is a conceptual diagram of a lens driving device according to a third embodiment of the present invention, FIG. 72 is a perspective view of the lens driving device according to the third embodiment of the present invention, FIG. 73 is a cross-sectional view taken along line AA in FIG. 72, FIG. 74 is a cross-sectional view taken along line BB in FIG. 72, FIG. 75 is a cross-sectional view taken along line CC in FIG. 72, FIG. 76 is an enlarged view of a part of FIG. 75, FIG. 77 is a cross-sectional view of the lens driving device according to the third embodiment of the present invention as viewed from above along a cross section perpendicular to the optical axis, FIG. 78 is an exploded perspective view of the lens driving device according to the third embodiment of the present invention, FIG. 79 is a perspective view of the lens driving device according to the third embodiment of the present invention with the cover removed, FIG. 80 is an enlarged view of a part of FIG. 79, FIG. 81 is a perspective view of FIG. 80 as viewed from a different direction, FIG. 82 is a perspective view illustrating a fixed portion and related components of the lens driving device according to the third embodiment of the present invention, and FIG. 83 is a diagram illustrating a movable portion and related components of the lens driving device according to the third embodiment of the present invention. 84 is a front view of FIG. 83 as seen from the front, FIG. 85 is a cross-sectional perspective view illustrating the AF guide ball and related configuration of a lens driving device according to a third embodiment of the present invention, FIG. 86 is a perspective view of FIG. 83 as seen from a different direction, FIG. 87 is a perspective view of FIG. 86 with the cover removed, FIG. 88 is a bottom view of the AF moving unit and related configuration of a lens driving device according to a third embodiment of the present invention as seen from below, FIG. 89 is a bottom perspective view of FIG. 88 as seen from a different direction, FIG. 90 is a perspective view illustrating the OIS moving unit and related configuration of a lens driving device according to a third embodiment of the present invention, FIG. 91 is a cross-sectional view illustrating the arrangement structure of the elastic members of a lens driving device according to a third embodiment of the present invention, FIG. 92 is a bottom perspective view of FIG. 90 as seen from a different direction, FIG. 93 is a perspective view illustrating the inner substrate and outer substrate of a lens driving device according to a third embodiment of the present invention, and FIG. 94 is a perspective view illustrating the elastic members and wires of a lens driving device according to a third embodiment of the present invention.

[0326] The lens driving device 2010 may be a voice coil motor (VCM). The lens driving device 2010 may be a lens driving motor. The lens driving device 2010 may be a lens driving actuator. The lens driving device 2010 may include an AF module. The lens driving device 2010 may include an OIS module.

[0327] The lens driving device 2010 may include a fixed portion 2100. The fixed portion 2100 may be a portion that is fixed relative to the moving portion when the moving portion moves. The moving portion can move relative to the fixed portion 2100.

[0328] The lens driving device 2010 may include a base 2110. The fixing part 2100 may include the base 2110. The base 2110 may be disposed below the AF holder 2210. The base 2110 may be disposed below the OIS holder 2310. The base 2110 may be connected to the cover 2120. The AF holder 2210 and the OIS holder 2310 may be disposed on the base 2110. The AF holder 2210 and the OIS holder 2310 may be disposed on a bottom plate of the base 2110. The AF holder 2210 and the OIS holder 2310 may be disposed within the base 2110. The AF holder 2210 and the OIS holder 2310 may be disposed within a side plate of the base 2110.

[0329] In the third embodiment of the present invention, the AF magnet 2410, the OIS-x magnet 2510, and the OIS-y magnet 2610 may all be disposed on the base 2110. The AF magnet 2410, the OIS-x magnet 2510, and the OIS-y magnet 2610 may all be disposed on the fixed part 2100. That is, in the autofocus operation, the AF magnet 2410, the OIS-x magnet 2510, and the OIS-y magnet 2610 can all be maintained in a fixed state. Furthermore, in the image stabilization operation, the AF magnet 2410, the OIS-x magnet 2510, and the OIS-y magnet 2610 can all be maintained in a fixed state. In the autofocus operation, the AF magnet 2410 is fixed, and the AF coil 2420 can be moved. In image stabilization operation, the OIS-x and OIS-y magnets 2510, 2610 are fixed and the OIS-x and OIS-y coils 2520, 2620 are movable.

[0330] The base 2110 can include a bottom plate. The base 2110 can include side plates. The side plates may be "sides." The side plates of the base 2110 can extend from an upper surface of the bottom plate.

[0331] The side plates of the base 2110 may include a plurality of side plates. The side plates of the base 2110 may include four side plates. However, one or more of the four side plates of the base 2110 may be omitted. The side plates of the base 2110 may include first to fourth side plates 2111, 2112, 2113, and 2114. The base 2110 may include a first side plate 2111 and a second side plate 2113 arranged on opposite sides to each other, and a third side plate 2112 and a fourth side plate 2114 arranged on opposite sides to each other.

[0332] The sides of the base 2110 may include a plurality of sides. The sides of the base 2110 may include four sides. However, one or more of the four sides of the base 2110 may be omitted. The sides of the base 2110 may include first to fourth sides. The base 2110 may include a first side and a second side arranged opposite to each other, and a third side and a fourth side arranged opposite to each other.

[0333] The AF magnet 2410 may be disposed on the first side plate 2111 of the base 2110. The OIS-x magnet 2510 may be disposed on the second side plate 2113 of the base 2110. The OIS-y magnet 2610 may be disposed on the third side plate 2112 of the base 2110.

[0334] The first side plate 2111 of the base 2110 may include a groove 2111a. The groove 2111a may be an "AF guide ball receiving groove." A ball 2810 may be disposed in the groove 2111a. The groove 2111a may be in direct contact with the ball 2810. The groove 2111a may be disposed in the optical axis direction. The groove 2111a may include a plurality of grooves. The groove 2111a may include two grooves. The two grooves may be disposed parallel to each other. The groove 2111a may include a first groove that contacts the ball 2810 at two points and a second groove that contacts the ball 2810 at one point. In a modified example, the first groove and the second groove may both contact the ball 2810 at two points.

[0335] The second side plate 2113 of the base 2110 may include a protrusion. The protrusion may protrude outward. The extensions 2722 of the outer substrate 2720 may be disposed above and below the protrusion. A groove may be formed in the protrusion to prevent interference even when the extensions 2722 of the outer substrate 2720 move.

[0336] The base 2110 may include a step 2115. The step 2115 may be formed at a lower end of an outer surface of the base 2110. The step 2115 may protrude from the outer surface of the base 2110. A side plate 2122 of the cover 2120 may be disposed on the step 2115 of the base 2110.

[0337] The lens driving device 2010 may include a cover 2120. The fixed part 2100 may include the cover 2120. The cover 2120 may be disposed on the base 2110. The cover 2120 may be coupled to the base 2110. The cover 2120 may be fixed to the base 2110. The cover 2120 may house the AF holder 2210 therein. The cover 2120 may house the OIS holder 2310 therein. The cover 2120 may be a shielding member. The cover 2120 may be a shielding can.

[0338] The cover 2120 may include an upper plate 2141. The upper plate 2141 may be disposed on the moving part. The upward movement of the moving part may be restricted by the moving part contacting the upper plate 2141. The upper plate 2141 may include a hole through which light passes.

[0339] The cover 2120 may include a side plate 2142. The side plate 2142 may extend from the upper plate 2141. The side plate 2142 may be disposed on the base 2110. The side plate 2142 may be disposed on a stepped portion formed to protrude from a lower end of the outer surface of the base 2110. The side plate 2142 may include a plurality of side plates. The side plate 2142 may include four side plates. The side plate 2142 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.

[0340] The lens driving device 2010 may include a moving unit. The moving unit may be disposed on the fixed unit 2100. The moving unit may be disposed within the fixed unit 2100. The moving unit may be disposed on the fixed unit 2100. The moving unit may be disposed movably on the fixed unit 2100. The moving unit can be moved with respect to the fixed unit 2100 by a driving unit. The moving unit can move during AF driving. The moving unit can move during OIS driving. A lens may be connected to the moving unit.

[0341] The lens driving device 2010 may include an AF moving unit 2200. The AF moving unit 2200 may be disposed in the fixed unit 2100. The AF moving unit 2200 may be disposed within the fixed unit 2100. The AF moving unit 2200 may be disposed on the fixed unit 2100. The AF moving unit 2200 may be disposed between the fixed unit 2100 and the OIS moving unit 2300. The AF moving unit 2200 may be movably disposed on the fixed unit 2100. The AF moving unit 2200 can be moved in the optical axis direction relative to the fixed unit 2100 by an AF driving unit 2400. The AF moving unit 2200 can move during AF driving.

[0342] The lens driving device 2010 may include an AF holder 2210. The AF movement unit 2200 may include an AF holder 2210. The AF holder 2210 may be an "AF carrier." The AF holder 2210 may be disposed within the base 2110. The AF holder 2210 may be disposed on the base 2110. The AF holder 2210 may be disposed within the cover 2120. The AF holder 2210 may be disposed between the base 2110 and the OIS holder 2310. The AF holder 2210 may be disposed so as to be movable in the optical axis direction.

[0343] The AF holder 2210 may include a protrusion. The protrusion may be connected to the lower elastic member 2910. The lower elastic member 2910 may include a hole connected to the protrusion of the AF holder 2210. In a modified example, the AF holder 2210 may include a groove for accommodating adhesive instead of the protrusion. Furthermore, the lower elastic member 2910 may include a hole disposed in the groove of the AF holder 2210. The protrusion of the AF holder 2210 may be formed on the lower surface of the AF holder 2210. The protrusion of the AF holder 2210 may protrude from the lower surface of the AF holder 2210.

[0344] The protrusion of the AF holder 2210 may include a plurality of protrusions. The protrusion of the AF holder 2210 may include a first protrusion 2211 and a second protrusion 2212. The outer portion 2911 of the lower elastic member 2910 may include a first area connected to the first protrusion 2211 and a second area 2212 connected to the first protrusion 2212. The wire 2930 may include a first wire 2931 disposed in a first corner area of the fixing part 2100. The connecting portion 2912 of the lower elastic member 2910 may include a first connecting portion connected to the first wire 2931. The connecting portion 2913 of the lower elastic member 2910 may include a first connecting portion 2913-1 and a second connecting portion 2913-2 connecting the outer portion 2911 of the lower elastic member 2910 and the first connecting portion of the lower elastic member 2910. The connecting portion 2913 of the lower elastic member 2910 may include a first connecting portion 2913-1 connecting the first area of the outer portion 2911 to the first connecting portion, and a second connecting portion 2913-2 connecting the second area of the outer portion 2911 to the first connecting portion. That is, the connecting portion 2913 of the lower elastic member 2910 may be provided with two connecting portions to connect one outer portion 2911 to one connecting portion 2912.

[0345] When viewed from below, the first and second connecting portions 2913-1 and 2913-2 of the lower elastic member 2910 may be symmetrical with respect to a virtual line connecting the optical axis and the first corner area of the fixing portion 2100.

[0346] The wire 2930 may include a second wire 2933 disposed in a second corner area of the fixing part 2100. The connecting part 2912 of the lower elastic member 2910 may include a second connecting part connected to the second wire 2933. The wire 2930 may include a third wire 2932 disposed in a third corner area of the fixing part 2100. The connecting part 2912 of the lower elastic member 2910 may include a third connecting part connected to the third wire 2932. The wire 2930 may include a fourth wire 2934 disposed in a fourth corner area of the fixing part 2100. The connecting part 2912 of the lower elastic member 2910 may include a fourth connecting part connected to the fourth wire 2934. The first corner area of the fixing part 2100 may be disposed diagonally opposite the second corner area, and the third corner area may be disposed diagonally opposite the fourth corner area.

[0347] The AF holder 2210 may include a protrusion 2213. The protrusion 2213 may be formed on an outer surface of the AF holder 2210. The protrusion 2213 may protrude outward from the AF holder 2210. Extensions 2722 of the outer substrate 2720 may be disposed on the upper and lower surfaces of the protrusion 2213.

[0348] The AF holder 2210 may include a groove 2214. The groove 2214 may be an "AF guide ball receiving groove." A ball 2810 may be disposed in the groove 2214. The groove 2214 may be in direct contact with the ball 2810. The groove 2214 may be disposed in the optical axis direction. The groove 2214 may include a plurality of grooves. The groove 2214 may include two grooves. The two grooves may be disposed parallel to each other. The groove 2214 may include a first groove that contacts the ball 2810 at two points and a second groove that contacts the ball 2810 at one point. In a modified example, both the first groove and the second groove may contact the ball 2810 at two points.

[0349] The AF holder 2210 may include a metal member 2216. The metal member 2216 may be insert-injected into the AF holder 2210. At least a portion of the metal member 2216 may be disposed on the upper surface of the AF holder 2210. The metal member 2216 may be disposed to reinforce the strength of the AF holder 2210.

[0350] The lens driving device 2010 may include a cover 2220. The AF movement unit 2200 may include the cover 2220. The cover 2220 may be connected to the AF holder 2210. The cover 2220 may be connected to a lower surface of the AF holder 2210. The cover 2220 may be connected to the AF holder 2210 at its lower side. The cover 2220 may include a hook 2221. The hook 2221 of the cover 2220 may be connected to the AF holder 2210. The hook 2221 of the cover 2220 may protrude upward and be connected to a side surface of the AF holder 2210.

[0351] The lens driving device 2010 may include an OIS moving unit 2300. The OIS moving unit 2300 may be disposed in the fixed unit 2100. The OIS moving unit 2300 may be disposed within the fixed unit 2100. The OIS moving unit 2300 may be disposed on the fixed unit 2100. The OIS moving unit 2300 may be disposed within the AF moving unit 2200. The OIS moving unit 2300 may be movably disposed. The OIS moving unit 2300 can be moved in the x-axis direction perpendicular to the optical axis relative to the fixed unit 2100 and the AF moving unit 2200 by an OIS-x driving unit 2500. The OIS moving unit 2300 can be moved in the y-axis direction perpendicular to the optical axis relative to the fixed unit 2100 and the AF moving unit 2200 by an OIS-y driving unit 2600. The OIS moving unit 2300 can move when the OIS is driven.

[0352] The OIS moving unit 2300 can be separated from the fixed unit 2100 and the AF moving unit 2200. The OIS moving unit 2300 can be separated from the fixed unit 2100 and the AF moving unit 2200 in the optical axis direction. The OIS moving unit 2300 can form a first gap with the fixed unit 2100 on a lower side in the optical axis direction. Furthermore, the OIS moving unit 2300 can form a second gap with the AF moving unit 2200 on an upper side in the optical axis direction. This can prevent the OIS moving unit 2300 from interfering with the fixed unit 2100 and the AF moving unit 2200 even if the OIS moving unit 2300 sags due to the influence of gravity depending on the state of the optical device.

[0353] The lens driving device 2010 may include an OIS holder 2310. The OIS moving unit 2300 may include an OIS holder 2310. The OIS holder 2310 may be an "OIS carrier." The OIS holder 2310 may be disposed in the AF holder 2210. The OIS holder 2310 may be disposed in the base 2110. The OIS holder 2310 may be disposed on the base 2110. The OIS holder 2310 may be disposed in the cover 2120. The OIS holder 2310 may be disposed to be movable in a direction perpendicular to the optical axis.

[0354] The OIS holder 2310 may include an outer surface. The OIS holder 2310 may include multiple side surfaces. The OIS holder 2310 may include first and second side surfaces opposite each other, and third and fourth side surfaces opposite each other. The AF coil 2420 may be disposed between the first side surface of the OIS holder 2310 and the AF magnet 2410. The OIS-x coil 2520 may be disposed between the second side surface of the OIS holder 2310 and the OIS-x magnet 2510. The OIS-y coil 2620 may be disposed between the third side surface of the OIS holder 2310 and the OIS-y magnet 2610. The AF coil 2420 may be disposed on the first side surface of the OIS holder 2310. The OIS-x coil 2520 may be disposed on the second side surface of the OIS holder 2310. The OIS-y coil 2620 may be disposed on the third side surface of the OIS holder 2310.

[0355] The OIS holder 2310 may include a groove 2311. The groove 2311 may be an "upper elastic member interference prevention groove." The groove 2311 may be formed on the upper surface of the OIS holder 2310. The groove 2311 may be formed in a concave shape on the upper surface of the OIS holder 2310. The groove 2311 may be arranged at a position corresponding to the upper elastic member 2920 so as to prevent interference between the OIS holder 2310 and the upper elastic member 2920.

[0356] The OIS holder 2310 may include side stoppers. The side stoppers may limit the lateral stroke of the OIS holder 2310. That is, when the OIS holder 2310 moves to its maximum extent, the side stoppers of the OIS holder 2310 may come into contact with one or more of the AF holder 2210 and the base 2110. The side stoppers may be formed on the outer surface of the OIS holder 2310. The side stoppers may protrude outward from the side surfaces of the OIS holder 2310.

[0357] The OIS holder 2310 may include a protrusion. The protrusion may be connected to the upper elastic member 2920. The upper elastic member 2920 may include a hole connected to the protrusion of the OIS holder 2310. In a modified example, the OIS holder 2310 may include a groove for accommodating adhesive instead of the protrusion. Furthermore, the upper elastic member 2920 may include a hole disposed in the groove of the OIS holder 2310. The protrusion of the OIS holder 2310 may be formed on the upper surface of the OIS holder 2310. The protrusion of the OIS holder 2310 may protrude from the upper surface of the OIS holder 2310.

[0358] The protrusion of the OIS holder 2310 may include a plurality of protrusions. The protrusion of the OIS holder 2310 may include a first protrusion 2314 and a second protrusion 2315. The inner portion 2921 of the upper elastic member 2920 may include a first area connected to the first protrusion 2314 and a second area 2212 connected to the second protrusion 2315. The wire 2930 may include a first wire 2931 disposed in a first corner area of the fixing part 2100. The connecting portion 2922 of the upper elastic member 2920 may include a first connecting portion connected to the first wire 2931. The connecting portion 2923 of the upper elastic member 2920 may include a first connecting portion 2923-1 and a second connecting portion 2923-2 connecting the inner portion 2921 of the upper elastic member 2920 and the first connecting portion of the upper elastic member 2920. The connecting portion 2923 of the upper elastic member 2920 may include a first connecting portion 2923-1 connecting the first area of the inner portion 2921 to the first connecting portion, and a second connecting portion 2923-2 connecting the second area of the inner portion 2921 to the first connecting portion. That is, the connecting portion 2923 of the upper elastic member 2920 may be provided with two connecting portions to connect one inner portion 2921 to one connecting portion 2922.

[0359] When viewed from below, the first and second connecting portions 2923-1 and 2923-2 of the upper elastic member 2920 may be symmetrical with respect to a virtual line connecting the optical axis and the first corner area of the fixing portion 2100.

[0360] The connecting portion 2922 of the upper elastic member 2920 may include a second connecting portion connected to the second wire 2933. The connecting portion 2922 of the upper elastic member 2920 may include a third connecting portion connected to the third wire 2932. The connecting portion 2922 of the upper elastic member 2920 may include a fourth connecting portion connected to the fourth wire 2934.

[0361] The lens driving device 2010 may include a driving unit. The driving unit may move the moving unit relative to the fixed unit 2100. The driving unit may include an AF driving unit 2400. The driving unit may include OIS driving units 2500 and 2600. The driving unit may include a coil and a magnet.

[0362] The lens driving device 2010 may include an AF driving unit 2400. The AF driving unit 2400 may move the AF moving unit 2200 in the optical axis direction. The AF driving unit 2400 may move the AF holder 2210 in the optical axis direction. The AF driving unit 2400 may move the AF holder 2210 in the optical axis direction through electromagnetic force. The AF driving unit 2400 may include a coil and a magnet.

[0363] In the third embodiment of the present invention, the AF holder 2210 and the OIS holder 2310 can move in the optical axis direction due to the interaction between the AF coil 2420 and the AF magnet 2410. The AF coil 2420, the AF holder 2210, and the OIS holder 2310 can move in the optical axis direction as a unit.

[0364] The lens driving device 2010 may include an AF magnet 2410. The AF driving unit 2400 may include an AF magnet 2410. The AF magnet 2410 may be disposed in the fixing unit 2100. The AF magnet 2410 may be disposed in the base 2110. The AF magnet 2410 may be disposed in the cover 2120. The AF magnet 2410 may be disposed on a side plate 2122 of the cover 2120. The AF magnet 2410 may be disposed on an outer surface of the base 2110. The AF magnet 2410 may be disposed on an inner surface of the base 2110. The AF magnet 2410 may be fixed to the base 2110. The AF magnet 2410 may be coupled to the base 2110. The AF magnet 2410 may be adhered to the base 2110 with an adhesive. The AF magnet 2410 may be disposed within the cover 2120. The AF magnet 2410 can interact with the AF coil 2420. The AF magnet 2410 can electromagnetically interact with the AF coil 2420. The AF magnet 2410 may be disposed at a position corresponding to the AF coil 2420. The AF magnet 2410 can face the AF coil 2420. The AF magnet 2410 can face the AF coil 2420. The AF magnet 2410 can overlap the AF coil 2420 in a direction perpendicular to the optical axis.

[0365] The AF magnet 2410 may be a four-pole magnet. The AF magnet 2410 may include a four-pole magnetized magnet. The AF magnet 2410 may include a first magnet portion including a north pole and a south pole, and a second magnet portion including a north pole and a south pole. The first magnet portion and the second magnet portion may be arranged vertically. The first magnet portion and the second magnet portion may be arranged spaced apart in the vertical direction, and a neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0366] The lens driving device 2010 may include an AF coil 2420. The AF driving unit 2400 may include an AF coil 2420. The AF coil 2420 may interact with the AF magnet 2410. The AF coil 2420 may move in the optical axis direction. The AF coil 2420 may move in the optical axis direction by interacting with the AF magnet 2410. The AF coil 2420 may face the AF magnet 2410. The AF coil 2420 may be disposed at a position corresponding to the AF magnet 2410. The AF coil 2420 may overlap the AF magnet 2410 in a direction perpendicular to the optical axis. The AF coil 2420 may be disposed on the inner substrate 2710. The AF coil 2420 may be disposed on a first portion 2711 of the inner substrate 2710. The AF coil 2420 may be disposed on the AF holder 2210. The AF coil 2420 may be disposed in the AF moving section 2200 .

[0367] In the above, it has been described that the AF magnet 2410 is arranged in the fixed part 2100 and the AF coil 2420 is arranged in the AF moving part 2200, but in a modified example, they may be arranged in the reversed manner. That is, in a modified example, the AF magnet 2410 may be arranged in the AF moving part 2200. The AF coil 2420 may be arranged in the fixed part 2100.

[0368] The lens driving device 2010 may include an AF sensor 2430. The AF driving unit 2400 may include the AF sensor 2430. The AF sensor 2430 may be a Hall sensor. The AF sensor 2430 may be disposed on the substrate 2740. The AF sensor 2430 may be disposed on a first portion 2711 of the substrate 2740. The AF sensor 2430 may sense the AF magnet 2410. The AF sensor 2430 may sense movement of the AF magnet 2410. The movement amount or position of the AF magnet 2410 sensed by the AF sensor 2430 can be used as feedback for autofocus driving.

[0369] The AF sensor 2430 may be a driver IC. The driver IC may include a sensing unit. The sensing unit may include a Hall element (Hall IC). The driver IC may be electrically connected to the AF coil 2420. The driver IC may supply current to the AF coil 2420.

[0370] The AF sensor 2430 may be disposed within the AF coil 2420. The AF sensor 2430 may overlap the neutral portion of the AF magnet 2410 in a direction perpendicular to the optical axis. In a modified example, the AF sensor 2430 may be disposed outside the AF coil 2420.

[0371] The lens driving device 2010 may include an OIS-x driving unit 2500. The OIS-x driving unit 2500 may move the OIS moving unit 2300 in the x-axis direction perpendicular to the optical axis direction. The OIS-x driving unit 2500 may move the OIS holder 2310 in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit 2500 may use electromagnetic force to move the OIS holder 2310 in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit 2500 may include a coil and a magnet.

[0372] In the third embodiment of the present invention, OIS holder 2310 can move in the x-axis direction, which is perpendicular to the optical axis direction, due to the interaction between OIS-x coil 2520 and OIS-x magnet 2510. OIS-x coil 2520 and OIS holder 2310 can move together in the x-axis direction.

[0373] The lens driving device 2010 may include an OIS-x magnet 2510. The OIS-x driving unit 2500 may include an OIS-x magnet 2510. The OIS-x magnet 2510 may be disposed in the fixed unit 2100. The OIS-x magnet 2510 may be disposed in the base 2110. The OIS-x magnet 2510 may be disposed on the outer surface of the base 2110. The OIS-x magnet 2510 may be disposed on the inner surface of the base 2110. The OIS-x magnet 2510 may be fixed to the base 2110. The OIS-x magnet 2510 may be coupled to the base 2110. The OIS-x magnet 2510 may be glued to the base 2110. The OIS-x magnet 2510 may be disposed in the cover 2120. The OIS-x magnet 2510 can interact with the OIS-x coil 2520. The OIS-x magnet 2510 can electromagnetically interact with the OIS-x coil 2520. The OIS-x magnet 2510 may be disposed at a position corresponding to the OIS-x coil 2520. The OIS-x magnet 2510 can face the OIS-x coil 2520. The OIS-x magnet 2510 can face the OIS-x coil 2520. The OIS-x magnet 2510 can overlap the OIS-x coil 2520 in a direction perpendicular to the optical axis.

[0374] The second magnet 2610 may be a two-pole magnet. The OIS-x magnet 2510 may include a two-pole magnetized magnet. The OIS-x magnet 2510 may include a north pole and a south pole. The inner surface of the OIS-x magnet 2510 may be a north pole and the outer surface may be a south pole.

[0375] The lens driving device 2010 may include an OIS-x coil 2520. The OIS-x driving unit 2500 may include an OIS-x coil 2520. The OIS-x coil 2520 may interact with the OIS-x magnet 2510. The OIS-x coil 2520 may move in the x-axis direction perpendicular to the optical axis. The OIS-x coil 2520 may move in the x-axis direction by interacting with the OIS-x magnet 2510. The OIS-x coil 2520 may face the OIS-x magnet 2510. The OIS-x coil 2520 may face the OIS-x magnet 2510. The OIS-x coil 2520 may be disposed at a position corresponding to the OIS-x magnet 2510. The OIS-x coil 2520 may overlap the OIS-x magnet 2510 in the direction perpendicular to the optical axis. The OIS-x coil 2520 may be disposed on the inner substrate 2710. OIS-x coil 2520 may be disposed on second portion 2713 of inner substrate 2710. OIS-x coil 2520 may be disposed on OIS holder 2310. OIS-x coil 2520 may be disposed on OIS moving portion 2300.

[0376] The lens driving device 2010 may include an OIS-x sensor 2530. The OIS-x driving unit 2500 may include an OIS-x sensor 2530. The OIS-x sensor 2530 may be disposed on the inner substrate 2710. The OIS-x sensor 2530 may be disposed on the second portion 2713 of the inner substrate 2710. The OIS-x sensor 2530 may include a Hall sensor. The OIS-x sensor 2530 may sense the OIS-x magnet 2510. The OIS-x sensor 2530 may sense the magnetic force of the OIS-x magnet 2510. The OIS-x sensor 2530 may be disposed within the OIS-x coil 2520. The OIS-x sensor 2530 may overlap the OIS-x coil 2520 in the optical axis direction. The OIS-x sensor 2530 may face the OIS-x magnet 2510. The OIS-x sensor 2530 may be disposed at a position corresponding to the OIS-x magnet 2510. The OIS-x sensor 2530 can sense the movement of the OIS-x magnet 2510. The amount of movement or the position of the OIS-x magnet 2510 sensed by the OIS-x sensor 2530 can be used as feedback for driving the image stabilization in the x-axis direction.

[0377] The lens driving device 2010 may include an OIS-y driving unit 2600. The OIS-y driving unit 2600 may move the OIS moving unit 2300 in the y-axis direction, which is perpendicular to the optical axis and x-axis directions. The OIS-y driving unit 2600 may move the OIS holder 2310 in the y-axis direction, which is perpendicular to both the optical axis and x-axis directions. The OIS-y driving unit 2600 may use electromagnetic force to move the OIS holder 2310 in the y-axis direction, which is perpendicular to both the optical axis and x-axis directions. The OIS-y driving unit 2600 may include a coil and a magnet.

[0378] In the third embodiment of the present invention, the OIS holder 2310 can move in the y-axis direction, which is perpendicular to both the optical axis direction and the x-axis direction, due to the interaction between the OIS-y coil 2620 and the OIS-y magnet 2610. The OIS-y coil 2620 and the OIS holder 2310 can move together in the y-axis direction.

[0379] The lens driving device 2010 may include an OIS-y magnet 2610. The OIS-y driving unit 2600 may include an OIS-y magnet 2610. The OIS-y magnet 2610 may be disposed on the fixed unit 2100. The OIS-y magnet 2610 may be disposed on the base 2110. The OIS-y magnet 2610 may be disposed on the outer surface of the base 2110. The OIS-y magnet 2610 may be disposed on the inner surface of the base 2110. The OIS-y magnet 2610 may be fixed to the base 2110. The OIS-y magnet 2610 may be coupled to the base 2110. The OIS-y magnet 2610 may be glued to the base 2110. The OIS-y magnet 2610 may be disposed within the cover 2120. The OIS-y magnet 2610 can interact with the OIS-y coil 2620. The OIS-y magnet 2610 can electromagnetically interact with the OIS-y coil 2620. The OIS-y magnet 2610 may be disposed at a position corresponding to the OIS-y coil 2620. The OIS-y magnet 2610 can face the OIS-y coil 2620. The OIS-y magnet 2610 can face the OIS-y coil 2620. The OIS-y magnet 2610 can overlap the OIS-y coil 2620 in a direction perpendicular to the optical axis.

[0380] The OIS-y magnet 2610 may be a two-pole magnet. The OIS-y magnet 2610 may include a two-pole magnetized magnet. The OIS-y magnet 2610 may include a north pole and a south pole. The inner surface of the OIS-y magnet 2610 may be a north pole and the outer surface may be a south pole.

[0381] The lens driving device 2010 may include an OIS-y coil 2620. The OIS-y driving unit 2600 may include an OIS-y coil 2620. The OIS-y coil 2620 may interact with the OIS-y magnet 2610. The OIS-y coil 2620 may be disposed on the opposite side of the AF coil 2420 with respect to the optical axis. The OIS-y coil 2620 may move in the y-axis direction, which is perpendicular to both the optical axis and the x-axis. The OIS-y coil 2620 may move in the y-axis direction by interacting with the OIS-y magnet 2610. The OIS-y coil 2620 may face the OIS-y magnet 2610. The OIS-y coil 2620 may be disposed at a position corresponding to the OIS-y magnet 2610. The OIS-y coil 2620 can overlap the OIS-y magnet 2610 in a direction perpendicular to the optical axis. The OIS-y coil 2620 may be disposed on the inner substrate 2710. The OIS-y coil 2620 may be disposed on the third portion 2712 of the inner substrate 2710. The OIS-y coil 2620 may be disposed on the OIS holder 2310. The OIS-y coil 2620 may be disposed on the OIS moving part 2300.

[0382] The lens driving device 2010 may include an OIS-y sensor 2630. The OIS-y driving unit 2600 may include an OIS-y sensor 2630. The OIS-y sensor 2630 may be disposed on the inner substrate 2710. The OIS-y sensor 2630 may be disposed on the third portion 2712 of the inner substrate 2710. The OIS-y sensor 2630 may include a Hall sensor. The OIS-y sensor 2630 may sense the OIS-y magnet 2610. The OIS-y sensor 2630 may sense the magnetic force of the OIS-y magnet 2610. The OIS-y sensor 2630 may be disposed within the OIS-y coil 2620. The OIS-y sensor 2630 may overlap the OIS-y coil 2620 in the optical axis direction. The OIS-y sensor 2630 may face the OIS-y magnet 2610. The OIS-y sensor 2630 may be disposed at a position corresponding to the OIS-y magnet 2610. The OIS-y sensor 2630 can sense the movement of the OIS-y magnet 2610. The movement amount or position of the OIS-y magnet 2610 sensed by the OIS-y sensor 2630 can be used for feedback of image stabilization driving in the y-axis direction.

[0383] The lens driving device 2010 may include a substrate. The substrate may include a flexible substrate. The substrate may be electrically connected to the coil. The substrate may be electrically connected to the sensor. The substrate may be formed to have flexibility. The substrate may be flexible. The substrate may be a circuit board. The substrate may be a printed circuit board.

[0384] The lens driving device 2010 may include an inner substrate 2710. The inner substrate 2710 may be electrically connected to the coils 2420, 2520, and 2620. The inner substrate 2710 may be electrically connected to the sensors 2430, 2530, and 2630. The inner substrate 2710 may connect the AF holder 2210 and the OIS holder 2310. The inner substrate 2710 may elastically connect the AF holder 2210 and the OIS holder 2310. The inner substrate 2710 may support the OIS holder 2310 so that it can move relative to the AF holder 2210. The inner substrate 2710 may guide the OIS holder 2310 to move relative to the AF holder 2210 in a direction perpendicular to the optical axis. The inner substrate 2710 may include a flexible substrate. The inner substrate 2710 may include a flexible printed circuit board (FPCB). The inner substrate 2710 may include an elastic portion. The inner substrate 2710 can include a resilient member.

[0385] The inner substrate 2710 may include a first portion 2711. The first portion 2711 may be disposed on the AF movement unit 2200. The first portion 2711 may be disposed on the AF holder 2210. The AF coil 2420 may be disposed on the first portion 2711 of the inner substrate 2710. The AF sensor 2430 may be disposed on the first portion 2711 of the inner substrate 2710. The yoke 2830 may be disposed on the first portion 2711 of the inner substrate 2710.

[0386] The inner substrate 2710 may include a second portion 2713. The second portion 2713 may be disposed on the OIS holder 2310. The second portion 2713 may be disposed on a second side of the OIS holder 2310. The OIS-x coil 2520 may be disposed on the second portion 2713 of the inner substrate 2710. The OIS-x sensor 2530 may be disposed on the second portion 2713 of the inner substrate 2710.

[0387] The inner substrate 2710 may include a third portion 2712. The third portion 2712 may be disposed on the OIS holder 2310. The third portion 2712 may be disposed on a third side of the OIS holder 2310. The OIS-y coil 2620 may be disposed on the third portion 2712 of the inner substrate 2710. The OIS-y sensor 2630 may be disposed on the third portion 2712 of the inner substrate 2710.

[0388] The inner substrate 2710 may include a fourth portion 2714. The fourth portion 2714 may be disposed between the OIS holder 2310 and the AF holder 2210. The fourth portion 2714 may be disposed between a fourth side of the OIS holder 2310 and the AF holder 2210.

[0389] However, in the "first to fourth sides" of the OIS holder 2310 described in this specification, "first to fourth" are used to distinguish the sides from one another, and so they may be referred to differently as necessary. For example, the "second side" may be referred to as the "first side," and the "third side" may be referred to as the "second side."

[0390] The inner substrate 2710 may include a terminal 2714a. The fourth portion 2714 of the inner substrate 2710 may include a terminal 2714a. The terminal 2714a may be electrically coupled to the coils 2420, 2520, 2620. The terminal 2714a may be electrically coupled to the sensors 2430, 2530, 2630.

[0391] The inner substrate 2710 may include a hole 2714b. The fourth portion 2714 of the inner substrate 2710 may include a hole 2714b. The hole 2714b may be formed through the fourth portion 2714 of the inner substrate 2710. The hole 2714b may be disposed at a position corresponding to a side stopper of the OIS holder 2310. The hole 2714b prevents the inner substrate 2710 from interfering with the side stopper of the OIS holder 2310.

[0392] The lens driving device 2010 may include an outer substrate 2720. The outer substrate 2720 may be disposed on the base 2110. The outer substrate 2720 may be electrically connected to the coils 2420, 2520, and 2620. The outer substrate 2720 may be electrically connected to the sensors 2430, 2530, and 2630. The outer substrate 2720 may connect the AF holder 2210 to the base 2110. The outer substrate 2720 may elastically connect the AF holder 2210 to the base 2110. The outer substrate 2720 may support the AF holder 2210 so that it is movable relative to the base 2110. The outer substrate 2720 may guide the AF holder 2210 to move in the optical axis direction relative to the base 2110. The outer substrate 2720 may include a flexible substrate. The outer substrate 2720 may include a flexible printed circuit board (FPCB). The outer substrate 2720 can include a resilient portion. The outer substrate 2720 can include a resilient member.

[0393] The outer substrate 2720 may include a main body portion 2721. The main body portion 2721 may be disposed on the fixing portion 2100. The main body portion 2721 may be disposed on the base 2110. The main body portion 2721 may be formed to cover the side surfaces of the base 2110. The main body portion 2721 may be disposed on three side surfaces of the base 2110. The main body portion 2721 may include two terminal portions. The two terminal portions may be disposed on opposite sides of the optical axis. The terminal portion may include a terminal 2721a.

[0394] The outer substrate 2720 may include a terminal 2721a. The main body 2721 of the outer substrate 2720 may include a terminal 2721a. The terminal 2721a may be electrically coupled to the terminal 2722a. The terminal 2721a may be disposed at a lower end of the base 2110. The terminal 2721a may be coupled to the printed circuit board 2050. The terminal 2721a may be coupled to the terminal of the printed circuit board 2050 via solder. The terminal 2721a may be coupled to the terminal of the printed circuit board 2050 via a conductive member. The terminal 2721a may be coupled to the terminal of the printed circuit board 2050. The terminal 2721a may be electrically coupled to the terminal of the printed circuit board 2050.

[0395] The outer substrate 2720 may include an extension 2722. The extension 2722 may be a "leg." The extension 2722 may extend from a main body 2721. At least a portion of the extension 2722 may move together with the AF mover 2200. At least a portion of the extension 2722 may move together with the AF holder 2210. The extension may extend from the main body 2721. The extension 2722 may include multiple legs. The extension 2722 may include a first leg and a second leg. The second leg may be disposed below the first leg.

[0396] The outer substrate 2720 may include a terminal 2722a. The extension 2722 of the outer substrate 2720 may include a terminal 2722a. The terminal 2722a may be coupled to the terminal 2714a of the inner substrate 2710. The terminal 2722a may be coupled to the terminal 2714a of the inner substrate 2710 via solder. The terminal 2722a may be coupled to the terminal 2714a of the inner substrate 2710 via an electrically conductive member. The terminal 2722a may be coupled to the terminal 2714a of the inner substrate 2710. The terminal 2722a may be electrically coupled to the terminal 2714a of the inner substrate 2710.

[0397] The lens driving device 2010 may include a guide member. The guide member may include a ball. The guide member may include a pin. The guide member may include a cylindrical member. The guide member may guide the movement of the moving part relative to the fixed part 2100 in a specific direction.

[0398] The lens driving device 2010 may include a ball 2810. The ball 2810 may be an "AF guide ball." The ball 2810 may be disposed between the fixed unit 2100 and the AF moving unit 2200. The ball 2810 can guide the movement of the AF moving unit 2200 in the optical axis direction. The ball 2810 can guide the AF moving unit 2200 to move in the optical axis direction relative to the fixed unit 2100. The ball 2810 can guide the movement of the AF holder 2210 relative to the base 2110 in the optical axis direction. The ball 2810 may be disposed between the base 2110 and the AF holder 2210. The ball 2810 may be disposed between the base 2110 and the AF holder 2210 in the x-axis direction. The ball 2810 may be disposed in the groove 2111a of the base 2110. The ball 2810 does not have to overlap with the OIS moving unit 2300 in the optical axis direction. The balls 2810 may be disposed in the first grooves 2214 of the AF holder 2210. The balls 2810 may include a first ball 1-1 that contacts the base 2110 and the AF holder 2210 at four points, and a second ball 1-2 that contacts the base 2110 and the AF holder 2210 at three points. The balls 2810 may be spherical. The balls 2810 may be made of metal. Grease may be applied to the surface of the balls 2810.

[0399] The balls 2810 may include a plurality of balls. The balls 2810 may include eight balls. Four balls 2810 may be disposed on one side of the AF magnet 2410, and the remaining four balls 2810 may be disposed on the other side of the AF magnet 2410.

[0400] The lens driving device 2010 may include a yoke 2830. The yoke 2830 may be disposed on the first portion 2711 of the inner substrate 2710. The yoke 2830 may be disposed between the AF coil 2420 and the AF movement unit 2200. An attractive force may act between the yoke 2830 and the AF magnet 2410. An attractive force may be generated between the yoke 2830 and the AF magnet 2410. The yoke 2830 may be disposed at a position corresponding to the AF magnet 2410. The yoke 2830 may be made of metal. The attractive force between the yoke 2830 and the AF magnet 2410 may press the ball 2810 between the base 2110 and the AF holder 2210. That is, the attractive force between the yoke 2830 and the AF magnet 2410 may maintain contact between the ball 2810 and the base 2110 and the AF holder 2210.

[0401] The lens driving device 2010 may include an elastic member 2900. The elastic member 2900 may connect the AF moving unit 2200 and the OIS moving unit 2300. The elastic member 2900 may elastically connect the AF moving unit 2200 and the OIS moving unit 2300. The elastic member 2900 may support the OIS moving unit 2300 movably relative to the AF moving unit 2200. The elastic member 2900 may guide OIS driving. The elastic member 2900 may guide the OIS moving unit 2300 to move in a direction perpendicular to the optical axis. The elastic member 2900 may guide the OIS moving unit 2300 to move in the x-axis and y-axis directions relative to the AF moving unit 2200. The elastic member 2900 may be configured to guide both the OIS x-axis driving and the OIS y-axis driving. The elastic member 2900 may include a leaf spring. The elastic member 2900 may include a wire. The elastic member 2900 may have elasticity. The elastic member 2900 may be made of metal. The primary resonance frequency of the elastic member 2900 may be 40 to 60 Hz. The primary resonance frequency of the elastic member 2900 may be 30 to 70 Hz.

[0402] The spring stiffness of the elastic member 2900 may be determined according to the weight of the moving body. The spring stiffness of the elastic member 2900 may be determined according to the target natural frequency (Hz) of the moving body. The spring stiffness of the elastic member 2900 may be determined according to the electromagnetic force level. Overall, the weight of the moving body and the electromagnetic force level vary greatly depending on the size of the lens, so the spring stiffness may also vary greatly. However, in the case of a spring type such as the third embodiment of the present invention, the target natural frequency may be set to a value of at least 40 Hz or more, taking into account the control characteristics.

[0403] In the case of an image sensor 1 / 1" OIS actuator, the x-axis sprung mass Kx may be 104 N / m (240 Hz) to 228 N / m (260 Hz). Furthermore, the y-axis sprung mass Ky may be 104 N / m (240 Hz) to 228 N / m (260 Hz). The x-axis sprung mass and the y-axis sprung mass may be the same. The z-axis spring constant Kz may be set to the maximum value that satisfies the Kx and Ky conditions.

[0404] The lens driving device 2010 may include a lower elastic member 2910. The lower elastic member 2910 may be a leaf spring. The lower elastic member 2910 may have elasticity. The lower elastic member 2910 may be connected to the AF moving unit 2200. The lower elastic member 2910 may be connected to the AF holder 2210. The lower elastic member 2910 may be disposed on the lower surface of the AF holder 2210. The lower elastic member 2910 may be disposed on the AF holder 2210. The lower elastic member 2910 may be disposed below the AF holder 2210. The lower elastic member 2910 may be disposed below the AF holder 2210. The lower elastic member 2910 may be disposed on the lower surface of the main body 2721. The lower elastic member 2910 may be connected to the lower surface of the main body 2721. The lower elastic member 2910 may be disposed perpendicular to the optical axis.

[0405] The lower elastic member 2910 may include a plurality of elastic units spaced apart from one another. The lower elastic member 2910 may include first to fourth elastic units corresponding to the first to fourth wires 2931, 2932, 2933, and 2934. The first to fourth elastic units may be spaced apart from one another.

[0406] The lower elastic member 2910 may include an outer portion 2911. The outer portion 2911 may be connected to the AF movement unit 2200. The lower elastic member 2910 may include a connecting portion 2912. The connecting portion 2912 may be connected to a wire 2930. The lower elastic member 2910 may include a connecting portion 2913. The connecting portion 2913 may connect the outer portion 2911 and the connecting portion 2912. The outer portion 2911 of the lower elastic member 2910 and the connecting portion 2912 of the lower elastic member 2910 may be disposed at the same height. However, in an up position where the lens is disposed above the image sensor, the OIS movement unit 2300 may be disposed in a drooping state due to the weight of the lens. In this case, the connecting portion 2912 may be disposed at a lower position than the outer portion 2911.

[0407] The lens driving device 2010 may include an upper elastic member 2920. The upper elastic member 2920 may be a leaf spring. The upper elastic member 2920 may have elasticity. The upper elastic member 2920 may be connected to the OIS moving unit 2300. The upper elastic member 2920 may be connected to the OIS holder 2310. The upper elastic member 2920 may be disposed on the upper surface of the OIS holder 2310. The upper elastic member 2920 may be disposed on the OIS holder 2310. The upper elastic member 2920 may be disposed on the top of the OIS holder 2310. The upper elastic member 2920 may be disposed on top of the OIS holder 2310. The upper elastic member 2920 may be disposed on top of the OIS holder 2310. The upper elastic member 2920 may be disposed perpendicular to the optical axis. The upper elastic member 2920 may be formed as a single unit.

[0408] The upper elastic member 2920 may include an inner portion 2921. The inner portion 2921 may be connected to the OIS movement portion 2300. The upper elastic member 2920 may include a connecting portion 2922. The connecting portion 2922 may be connected to a wire 2930. The upper elastic member 2920 may include a connecting portion 2923. The connecting portion 2923 may connect the inner portion 2921 and the connecting portion 2922. The inner portion 2921 of the upper elastic member 2920 and the connecting portion 2922 of the lower elastic member 2910 may be disposed at the same height. However, in an up position where the lens is disposed above the image sensor, the OIS movement portion 2300 may be disposed in a drooping state due to the weight of the lens. Furthermore, the inner portion 2921 may be disposed at a lower position than the connecting portion 2922.

[0409] The lens driving device 2010 may include a wire 2930. The wire 2930 may be a "side elastic member." The wire 2930 may be a wire spring. The wire 2930 may be a suspension wire. The wire 2930 may have elasticity. The wire 2930 may connect the upper elastic member 2920 and the lower elastic member 2910. The wire 2930 may elastically connect the upper elastic member 2920 and the lower elastic member 2910. The wire 2930 may be arranged so as to be parallel to the optical axis. The wire 2930 may be arranged so as to be parallel to the optical axis direction.

[0410] The wire 2930 may include a plurality of wires. The wire 2930 may include four wires. The wire 2930 may include first to fourth wires 2931, 2932, 2933, and 2934. The wire 2930 may include first to fourth wires 2931, 2932, 2933, and 2934 arranged in first to fourth corner areas of the fixing part 2100, respectively.

[0411] Hereinafter, autofocus (AF) driving of a lens driving device according to a third embodiment of the present invention will be described with reference to the drawings.

[0412] 95 to 97 are diagrams illustrating autofocus driving of a lens driving device according to a third embodiment of the present invention. Fig. 95 is a cross-sectional view illustrating the state of the moving part in the initial state when no current is applied to the AF coil. Fig. 96 is a cross-sectional view illustrating the state when a forward current is applied to the AF coil and the moving part has moved upward in the optical axis direction. Fig. 97 is a cross-sectional view illustrating the state when a reverse current is applied to the AF coil and the moving part has moved downward in the optical axis direction.

[0413] The moving unit may be arranged at a position spaced apart from both the upper plate 2121 of the cover 2120 and the base 2110 from an initial position where no current is applied to the AF coil 2420. Further, the moving unit may be the AF moving unit 2200. Further, the moving unit may include the AF moving unit 2200 and the OIS moving unit 2300.

[0414] When a forward current is applied to the AF coil 2420, the AF coil 2420 can move upward in the optical axis direction due to electromagnetic interaction between the AF coil 2420 and the AF magnet 2410 (see A in FIG. 96). Furthermore, the AF holder 2210 can move upward in the optical axis direction together with the AF coil 2420. Furthermore, the OIS holder 2310 and the lens can move upward in the optical axis direction together with the AF holder 2210. As a result, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor via the lens may be adjusted.

[0415] When a reverse current is applied to the AF coil 2420, the AF coil 2420 can move downward in the optical axis direction due to electromagnetic interaction between the AF coil 2420 and the AF magnet 2410 (see B in FIG. 97). Furthermore, the AF holder 2210 can move downward in the optical axis direction together with the AF coil 2420. Furthermore, the OIS holder 2310 and the lens can move downward in the optical axis direction together with the AF holder 2210. As a result, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor via the lens may be adjusted.

[0416] Meanwhile, during the movement of the AF coil 2420, the AF sensor 2430 moves together with the AF coil 2420 and can sense the amount of movement and position of the lens in the optical axis direction by sensing the strength of the magnetic field of the AF magnet 2410. The amount of movement and position of the lens in the optical axis direction sensed by the AF sensor 2430 can be used for autofocus feedback control.

[0417] Hereinafter, optical image stabilization (OIS) driving of a lens driving device according to a third embodiment of the present invention will be described with reference to the drawings.

[0418] 98 to 100 are diagrams illustrating the image stabilization drive of a lens driving device according to a third embodiment of the present invention. Fig. 98 is a cross-sectional view illustrating the state of the moving part in the initial state when no current is applied to the OIS-x coil and the OIS-y coil. Fig. 99 is a cross-sectional view illustrating the state when current is applied to the OIS-x coil and the OIS moving part moves in the x-axis direction perpendicular to the optical axis. Fig. 100 is a cross-sectional view illustrating the state when current is applied to the OIS-y coil and the OIS moving part moves in the y-axis direction perpendicular to both the optical axis and the x-axis.

[0419] 98, the moving part may be placed in an initial position where no current is applied to the OIS-x coil 2520 and the OIS-y coil 2620. Additionally, the moving part may be the OIS moving part 2300.

[0420] When a current is applied to the OIS-x coil 2520, electromagnetic interaction between the OIS-x coil 2520 and the OIS-x magnet 2510 causes the OIS-x coil 2520 to move in the x-axis direction, which is perpendicular to the optical axis (see A in FIG. 99 ). Furthermore, the OIS holder 2310 moves together with the OIS-x coil 2520 in the x-axis direction. Furthermore, the lens moves together with the OIS holder 2310 in the x-axis direction. More specifically, when a forward current is applied to the OIS-x coil 2520, the OIS-x coil 2520, OIS holder 2310, and lens move in one direction on the x-axis. Furthermore, when a reverse current is applied to the OIS-x coil 2520, the OIS-x coil 2520, OIS holder 2310, and lens move in the other direction on the x-axis.

[0421] When a current is applied to the OIS-y coil 2620, electromagnetic interaction between the OIS-y coil 2620 and the OIS-y magnet 2610 causes the OIS-y coil 2620 to move in the y-axis direction, which is perpendicular to the optical axis (see B in FIG. 100 ). Furthermore, the OIS holder 2310 can move in the y-axis direction together with the OIS-y coil 2620. Furthermore, the lens can move in the y-axis direction together with the OIS holder 2310. More specifically, when a forward current is applied to the OIS-y coil 2620, the OIS-y coil 2620, the OIS holder 2310, and the lens can move in one direction on the y-axis. Furthermore, when a reverse current is applied to the OIS-y coil 2620, the OIS-y coil 2620, the OIS holder 2310, and the lens can move in the other direction on the y-axis.

[0422] Meanwhile, the OIS-x sensor 2530 senses the strength of the magnetic field of the OIS-x magnet 2510 and can sense the movement amount and position of the OIS-x coil 2520. The movement amount and position sensed by the OIS-x sensor 2530 can be used for x-axis direction image stabilization feedback control. The OIS-y sensor 2630 senses the strength of the magnetic field of the OIS-y magnet 2610 and can sense the movement amount and position of the OIS-y coil 2620. The movement amount and position sensed by the OIS-y sensor 2630 can be used for y-axis direction image stabilization feedback control.

[0423] A camera device according to a third embodiment of the present invention will be described below with reference to the drawings.

[0424] FIG. 101 is an exploded perspective view of a camera device according to a third embodiment of the present invention.

[0425] The camera device 2010A can include a camera module.

[0426] The camera device 2010A may include a lens module 2020. The lens module 2020 may include at least one lens. The lens may be disposed at a position corresponding to the image sensor 2060. The lens module 2020 may include a lens and a barrel. The lens module 2020 may be coupled to an OIS holder 2310 of the lens driving device 2010. The lens module 2020 may be coupled to the OIS holder 2310 by threaded coupling and / or adhesive. The lens module 2020 may move integrally with the OIS holder 2310.

[0427] The camera device 2010A may include a filter 2030. The filter 2030 can help block light of a specific frequency band from entering the image sensor 2060 from light passing through the lens module 2020. The filter 2030 may be arranged parallel to the xy plane. The filter 2030 may be arranged between the lens module 2020 and the image sensor 2060. The filter 2030 may be arranged on the sensor base 2040. In a variant, the filter 2030 may be arranged on the base 2110. The filter 2030 may include an infrared filter. The infrared filter can block light in the infrared range from entering the image sensor 2060.

[0428] The camera device 2010A may include a sensor base 2040. The sensor base 2040 may be disposed between the lens driving device 2010 and the printed circuit board 2050. The sensor base 2040 may include a protrusion 2041 on which the filter 2030 is disposed. An opening may be formed in the portion of the sensor base 2040 on which the filter 2030 is disposed so that light passing through the filter 2030 can enter the image sensor 2060. An adhesive member may bond or adhere the base 2310 of the lens driving device 2010 to the sensor base 2040. The adhesive member may further serve to prevent foreign matter from entering the interior of the lens driving device 2010. The adhesive member may include one or more of epoxy, a heat-curing adhesive, and an ultraviolet-curing adhesive.

[0429] The camera device 2010A may include a printed circuit board (PCB) 2050. The printed circuit board 2050 may be a substrate or a circuit board. A lens driving device 2010 may be disposed on the printed circuit board 2050. A sensor base 2040 may be disposed between the printed circuit board 2050 and the lens driving device 2010. The printed circuit board 2050 may be electrically connected to the lens driving device 2010. An image sensor 2060 may be disposed on the printed circuit board 2050. The printed circuit board 2050 may include various circuits, elements, a control unit, etc. for converting an image formed on the image sensor 2060 into an electrical signal and transmitting the signal to an external device.

[0430] The camera device 2010A may include an image sensor 2060. The image sensor 2060 may be configured to form an image by receiving light that has passed through a lens and a filter 2030. The image sensor 2060 may be mounted on a printed circuit board 2050. The image sensor 2060 may be electrically connected to the printed circuit board 2050. For example, the image sensor 2060 may be connected to the printed circuit board 2050 using surface mounting technology (SMT). For another example, the image sensor 2060 may be connected to the printed circuit board 2050 using flip chip technology. The image sensor 2060 may be disposed such that its optical axis coincides with that of a lens. That is, the optical axis of the image sensor 2060 and the optical axis of the lens may be aligned. The image sensor 2060 may convert light irradiated onto an effective image area of the image sensor 2060 into an electrical signal. The image sensor 2060 may be any of a CCD (charge coupled device), a MOS (metal oxide semi-conductor), a CPD, and a CID.

[0431] The camera device 2010A may include a motion sensor 2070. The motion sensor 2070 may be mounted on the printed circuit board 2050. The motion sensor 2070 may be electrically connected to the control unit 2080 via a circuit pattern provided on the printed circuit board 2050. The motion sensor 2070 may output rotational angular velocity information according to the movement of the camera device 2010A. The motion sensor 2070 may include a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0432] The camera device 2010A may include a control unit 2080. The control unit 2080 may be disposed on the printed circuit board 2050. The control unit 2080 may be electrically connected to the coils 2330 of the lens driving device 2010. The control unit 2080 may individually control the direction, strength, amplitude, etc. of the current supplied to the coils 2330. The control unit 2080 may perform an autofocus function and / or an image stabilization function by controlling the lens driving device 2010. Furthermore, the control unit 2080 may perform autofocus feedback control and / or image stabilization feedback control for the lens driving device 2010.

[0433] The camera device 2010A may include a connector 2090. The connector 2090 may be electrically connected to the printed circuit board 2050. The connector 2090 may include a port for electrically connecting to an external device.

[0434] An optical apparatus according to a third embodiment of the present invention will now be described with reference to the drawings.

[0435] FIG. 102 is a perspective view of an optical apparatus according to a third embodiment of the present invention, and FIG. 103 is a perspective view of an optical apparatus according to a modified example.

[0436] The optical device 2001 may include one or more of a mobile terminal, a mobile phone, a portable terminal, a mobile terminal, a smart phone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), and a navigation system. The optical device 2001 may also include any device for taking images or photographs.

[0437] The optical device 2001 may include a main body 2020. The optical device 2001 may include a camera device 2010A. The camera device 2010A may be disposed in the main body 2020. The camera device 2010A may photograph an object. The optical device 2001 may include a display. The display may be disposed in the main body 2020. The display may output one or more of a video and an image photographed by the camera device 2010A. The display may be disposed on a first surface of the main body 2020. The camera device 2010A may be disposed on one or more of the first surface and a second surface opposite the first surface of the main body 2020. As shown in FIG. 102, the camera device 2010A may have triple cameras arranged vertically. As shown in FIG. 103, the camera device 2010A-1 may have triple cameras arranged horizontally.

[0438] Although the first to third embodiments of the present invention have been described separately above, partial configurations of the first to third embodiments may be substituted for each other. That is, partial configurations of the first embodiment may be substituted for one or more corresponding configurations of the second and third embodiments. Partial configurations of the second embodiment may be substituted for one or more corresponding configurations of the first and third embodiments. Partial configurations of the third embodiment may be substituted for one or more corresponding configurations of the first and second embodiments.

[0439] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art will understand that the present invention can be embodied in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and are not limiting.

Claims

1. Bass and a first holder disposed within the base; a second holder disposed within the first holder; First to third magnets arranged on the base; a first coil disposed in the first holder and interacting with the first magnet; a second coil disposed in the second holder and interacting with the second magnet; a third coil disposed in the second holder and interacting with the third magnet.

2. The first holder moves in the optical axis direction due to the interaction between the first coil and the first magnet, an interaction between the second coil and the second magnet causes the second holder to move in a first direction perpendicular to the optical axis direction; 2. The lens driving device according to claim 1, wherein the second holder is moved in a second direction perpendicular to both the optical axis direction and the first direction by interaction between the third coil and the third magnet.

3. The lens driving device according to claim 2 , wherein the second holder moves in the optical axis direction together with the first holder due to an interaction between the first coil and the first magnet.

4. the base includes first and second sides disposed opposite each other, and third and fourth sides disposed opposite each other; the first magnet is disposed on the first side of the base; the second magnet is disposed on the second side of the base; The lens driving device according to claim 1 , wherein the third magnet is disposed on the third side of the base.

5. the second holder includes a first side and a second side disposed opposite to each other, and a third side and a fourth side disposed opposite to each other; the first coil is disposed between the first side surface of the second holder and the first magnet; the second coil is disposed between the second side surface of the second holder and the second magnet, The lens driving device according to claim 1 , wherein the third coil is disposed between the third side surface of the second holder and the third magnet.

6. a first substrate including a first portion disposed on the first holder, a second portion disposed on the second side surface of the second holder, and a third portion disposed on the third side surface of the second holder; the first coil is disposed on the first portion of the first substrate; the second coil is disposed on the second portion of the first substrate; The lens driving device according to claim 5 , wherein the third coil is disposed in the third portion of the first substrate.

7. the first substrate includes a fourth portion disposed between the fourth side surface of the second holder and the first holder; The lens driving device according to claim 6 , wherein the fourth portion of the first substrate includes a terminal.

8. a second substrate disposed on the base; the second substrate includes a main body portion disposed on the base and an extension portion extending from the main body portion; the extension includes a first terminal coupled to the terminal of the first substrate; the body includes a second terminal electrically connected to the first terminal; The lens driving device according to claim 1 , wherein at least a portion of the extension moves together with the first holder.

9. The lens driving device according to claim 1 , further comprising a first ball disposed between the base and the first holder.

10. The lens driving device according to claim 6 , further comprising a yoke disposed on the first portion of the first substrate, the yoke generating an attractive force with the first magnet.

Images