Lens driving device, camera device, and optical device

Abstract

A first embodiment of the present invention relates to a lens driving device comprising: a base part; a first holder disposed in the base portion; a second holder disposed in the first holder; a first magnet to a third magnet, the first magnet to the third magnet being arranged in the base portion; 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 Art

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

[0003] An auto focus function that automatically adjusts the focus according to the distance of a subject is applied to a camera device, and a hand shake correction function is applied to prevent a phenomenon in which the focus is shaken due to hand shake of a user.

[0004] The autofocus function and the shake correction function can be performed by the electromagnetic interaction between the magnet and the coil.

[0005] However, in a conventional lens driving device, a magnet that does not require electrical connection is provided in a moving unit and a coil is provided in a fixed unit. In this case, there is a problem that a magnet that is heavier than the coil is provided in the moving unit, thereby increasing current consumption.

[0006] In particular, recently, as image sensors have become more pixelated, the lens diameter has increased, and the weight of the lens has also increased, which exacerbates the problem.

[0007] In addition, in the conventional lens driving device, there is a problem that the height of the camera device in the optical axis direction increases because the guide structure for OIS-x-axis driving and the guide structure for OIS-y-axis driving are provided in separate layers.

[0008] (Patent Document 1) KR 10-2015-0118005A Summary of the invention

[0009] Technical Topics

[0010] The present embodiment is intended to provide a lens driving device in which power consumption for performing an auto-focusing function and an image stabilization function is reduced by arranging a coil that is lightweight compared to a magnet in a moving unit.

[0011] In addition, the present invention is intended to provide a lens driving device having a minimum height in the optical axis direction by forming a guide structure for OIS-x-axis driving and a guide structure for OIS-y-axis driving into one body.

[0012] Technical Solutions

[0013] According to the first embodiment of the present invention, the lens driving device may include: a base; a first holder, which is arranged inside the base; a second holder, which is arranged in the first holder; first to third magnets, which are arranged in the base; a first coil, which is arranged in the first holder and interacts with the first magnet; a second coil, which is arranged in the second holder and interacts with the second magnet; and a third coil, which is arranged in the second holder and interacts with the third magnet.

[0014] Through the interaction between the first coil and the first magnet, the first holder moves in the optical axis direction, through the interaction between the second coil and the second magnet, the second holder moves in the first direction perpendicular to the optical axis direction, and through the interaction between the third coil and the third magnet, the second holder can move in the second direction perpendicular to both the optical axis direction and the first direction.

[0015] Through the interaction between the first coil and the first magnet, the second holder can move in the optical axis direction together with the first holder.

[0016] The base may include a first side portion and a second side portion arranged opposite to each other and a third side portion and a fourth side portion arranged opposite to each other, and the first magnet may be arranged in the first side portion of the base, the second magnet may be arranged in the second side portion of the base, and the third magnet may be arranged in the third side portion of the base.

[0017] The second retainer may include a first side surface and a second side surface arranged opposite to each other and a third side surface and a fourth side surface arranged opposite to each other, the first coil may be arranged between the first side surface of the second retainer and the first magnet, the second coil may be arranged between the second side surface of the second retainer and the second magnet, and the third coil may be arranged between the third side surface of the second retainer and the third magnet.

[0018] The lens driving device includes a first substrate, which includes a first part arranged in a first holder, a second part arranged on a second side surface of a second holder, and a third part arranged on a third side surface of the second holder, wherein the first coil is arranged in the first part of the first substrate, wherein the second coil is arranged in the second part of the first substrate, and wherein the third coil can be arranged in the third part of the first substrate.

[0019] The first substrate includes a fourth portion disposed between a fourth side surface of the second holder and the first holder, and the fourth portion of the first substrate may include a terminal.

[0020] The lens driving device includes a second substrate arranged on a base, the second substrate includes a main body portion arranged on the base and an extension portion extending from the main body portion, wherein the extension portion includes a first terminal connected to a terminal of the first substrate, wherein the main body portion includes a second terminal electrically connected to the first terminal, and wherein at least a portion of the extension portion can move together with the first retainer.

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

[0022] The lens driving device includes a yoke that is disposed in the first portion of the first substrate and generates an attractive force with the first magnet.

[0023] The lens driving device may include a second ball disposed between the first holder and the second holder.

[0024] The lens driving device includes a first elastic member, which is arranged on the upper surface of the second holder; a second elastic member, which is arranged on the lower surface of the first holder; and a third elastic member, which connects the first elastic member and the second elastic member, wherein the first holder includes a main body part and a pressing part connected to the upper surface of the main body part, wherein the second elastic member is arranged on the lower surface of the main body part, and wherein a second ball can be arranged between the pressing part of the first holder and the second holder.

[0025] The second ball bearings may 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.

[0026] The lens driving device may include: a first sensor, which is arranged in a first portion of the first substrate and detects a first magnet; a second sensor, which is arranged in a second portion of the first substrate and detects a second magnet; and a third sensor, which is arranged in a third portion of the first substrate and detects a third magnet.

[0027] 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 coupled to the lens driving device.

[0028] An optical device according to a first embodiment of the present invention may include: a main body; a camera device provided in the main body; and a display provided in the main body and outputting at least one of an image and a video photographed by the camera device.

[0029] According to the second embodiment of the present invention, the lens driving device may include: a fixing unit; a first moving unit, which is arranged inside the fixing unit; a second moving unit, which is arranged inside the first moving unit; a first driving unit, which enables the first moving unit to move in the optical axis direction; a second driving unit, which enables the second moving unit to move in a first direction perpendicular to the optical axis direction; a third driving unit, which enables the second moving unit to move in a second direction perpendicular to the optical axis direction and the first direction; a first ball, which is arranged between the first moving unit and the second moving unit so as to overlap with the first moving unit and the second moving unit in the optical axis direction; a wire, which is arranged to be parallel to the optical axis direction; a first elastic member, which connects the first area of ​​the wire and the first moving unit; and a second elastic member, which connects the second area of ​​the wire and the second moving unit.

[0030] The second region of the wire may be arranged to be higher than the first region.

[0031] The first moving unit includes a top plate disposed higher than the second moving unit, and the first rolling ball may be disposed between the upper plate of the first moving unit and the second moving unit.

[0032] The first elastic member includes an outer portion connected to the first movable unit, the second elastic member includes an inner portion connected to the second movable unit, and in the optical axis direction, the distance between the first area and the second area of ​​the wire can be longer than the distance between the outer portion of the first elastic member and the inner portion of the second elastic member.

[0033] The first elastic member includes: an outer portion connected to the first moving unit; a connecting portion connected to the wire; and a connecting portion connecting the outer portion and the connecting portion, wherein the connecting portion of the first elastic member can be arranged to be lower than the outer portion of the first elastic member.

[0034] The second elastic member includes: an inner portion connected to the second moving unit; a connecting portion connected to the wire; and a connecting portion connecting the inner portion and the connecting portion, wherein the connecting portion of the second elastic member can be arranged to be higher than the inner portion of the second elastic member.

[0035] When viewed from above, the first rolling ball may be disposed inside a space formed by an inner portion of the second elastic member, the coupling portion, and the connecting portion.

[0036] The second movable unit includes a first protrusion and a second protrusion formed on an upper surface of the second movable unit; the inner portion 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 at a first corner area of ​​the fixed unit; the connecting portion of the second elastic member includes a first connecting portion connected to the first wire; and the connecting portion of the second elastic member may include a first connecting portion connecting the first area of ​​the inner portion and the first connecting portion, and a second connecting portion connecting the second area of ​​the inner portion and the first connecting portion.

[0037] The connecting portion of the first elastic member includes a first connecting portion connected to the first wire; and the connecting portion of the first elastic member includes a first connecting portion and a second connecting portion connecting an outer portion of the first elastic member and the first connecting portion of the first elastic member; and when viewed from below, the first connecting portion and the second connecting portion of the first elastic member can be symmetrical about an imaginary straight line connecting the optical axis and the first corner area of ​​the fixing unit.

[0038] The wires include first to fourth wires respectively arranged in first to fourth corner areas of the fixing unit; the first elastic member includes first to fourth elastic units corresponding to the first to fourth wires; the first to fourth elastic units are spaced apart from each other; and the second elastic member can be formed integrally.

[0039] The first driving unit may include a first coil provided in the first moving unit and a first magnet provided in the fixing unit, and the second driving unit may include a second coil provided in the second moving unit and a second magnet provided in the fixing unit.

[0040] The third driving unit may include a third coil provided in the second moving unit and a third magnet provided in the fixing unit.

[0041] The lens driving device includes: a first substrate, which includes: a first part, which is arranged in a first moving unit; a second part, which is arranged on a first side surface of a second moving unit; and a third part, which is arranged on a second side surface of the second moving unit, wherein the first coil is arranged in the first part of the first substrate, the second coil is arranged in the second part of the first substrate, and the third coil can be arranged in the third part of the first substrate.

[0042] The lens driving device includes a main body portion disposed on a fixing unit and a second substrate including an extension portion extending from the main body portion, wherein the extension portion includes a terminal connected to a terminal of the first substrate, and wherein at least a portion of the extension portion can move together with the first moving unit.

[0043] 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; a lens driving device disposed on the printed circuit board; and a lens coupled to the lens driving device.

[0044] An optical device according to a second embodiment of the present invention may include: a main body; a camera device provided in the main body; and a display provided in the main body and outputting at least one of an image and a video photographed by the camera device.

[0045] According to the third embodiment of the present invention, the lens driving device includes: a fixed unit; a first movable unit, which is arranged inside the fixed unit; a second movable unit, which is arranged inside the first movable unit; a first driving unit, which enables the first movable unit to move in the optical axis direction; a second driving unit, which enables the second movable unit to move in a first direction perpendicular to the optical axis direction; a third driving unit, which enables the second movable unit to move in a second direction perpendicular to the optical axis direction and the first direction; a ball, which is arranged between the fixed unit and the first movable unit; and an elastic member, which connects the first movable unit and the second movable unit, wherein the first driving unit may include a first coil arranged in the first movable unit and a first magnet arranged in the fixed unit.

[0046] The ball bearing may not overlap with the second moving unit in the optical axis direction.

[0047] The elastic member may include a first elastic member coupled to the first moving unit, a second elastic member coupled to the second moving unit, and a wire connecting the first elastic member and the second elastic member.

[0048] The first elastic member may include an outer portion coupled with the first moving unit, a coupling portion coupled with the wire, and a connecting portion connecting the outer portion and the coupling portion.

[0049] The outer portion of the first elastic member and the coupling portion of the first elastic member may be disposed at the same height.

[0050] The second elastic member may include an inner portion coupled with the second moving unit, a coupling portion coupled with the wire, and a connecting portion connecting the inner portion and the coupling portion of the second elastic member.

[0051] The inner portion of the second elastic member and the coupling portion of the first elastic member may be disposed at the same height.

[0052] The second driving unit may include a second coil provided in the second moving unit and a second magnet provided in the fixing unit.

[0053] The third driving unit may include a third coil provided in the second moving unit and a third magnet provided in the fixing unit.

[0054] The lens driving device includes: a first substrate, which includes: a first part, which is arranged on a first moving unit; a second part, which is arranged on a first side surface of a second moving unit; and a third part, which is arranged on a second side surface of the second moving unit, wherein the first coil is arranged on the first part of the first substrate, the second coil is arranged on the second part of the first substrate, and the third coil can be arranged on the third part of the first substrate.

[0055] The lens driving device includes a second substrate, which includes a main body portion arranged on a fixed unit and an extension portion extending from the main body portion, wherein the extension portion includes a terminal connected to a terminal of the first substrate, and wherein at least a portion of the extension portion can move together with the first movable unit.

[0056] The ball guides the first moving unit to move in the optical axis direction relative to the fixing unit, and the elastic member may guide the second moving unit to move in the first direction and the second direction relative to the first moving unit.

[0057] The lens driving device may include a yoke that is disposed between the first coil and the first moving unit and has an attractive force with the first magnet.

[0058] 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; a lens driving device disposed on the printed circuit board; and a lens coupled to the lens driving device.

[0059] An optical device according to a third embodiment of the present invention may include: a main body; a camera device provided in the main body; and a display provided in the main body and outputting at least one of an image and a video photographed by the camera device.

[0060] Beneficial effects

[0061] According to the present embodiment, since the coil lighter than the magnet is provided in the moving unit, the current consumption for performing the auto focus function and the shake correction function can be reduced.

[0062] In addition, since the guide structure for OIS-x-axis driving and the guide structure for OIS-y-axis driving are integrally formed, the height of the lens driving device in the optical axis direction can be minimized.

[0063] Therefore, the height of the camera device protruding from the smartphone can be minimized.

[0064] In addition, the OIS guide structure of the second embodiment of the present invention can maintain the OIS guide balls in a closed state without a separate preloading member. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 is a conceptual diagram of a lens driving device according to a first embodiment of the present invention.

[0066] Figure 2 is a perspective view of a lens driving device according to a first embodiment of the present invention.

[0067] Figure 3 It is along Figure 2 A cross-sectional view taken along line AA.

[0068] Figure 4 It is along Figure 2 A cross-sectional view taken along line BB.

[0069] Figure 5 1 is an exploded perspective view of a lens driving device according to a first embodiment of the present invention.

[0070] Figure 6 is a perspective view of the lens driving device according to the first embodiment of the present invention, with a cover removed.

[0071] Figure 7 It's a picture. Figure 6 An enlarged view of an enlarged portion of .

[0072] Figure 8 It is from Figure 6 Observed from different directions Figure 6 A stereoscopic diagram of the lens driving device in a state.

[0073] Fig. 9 is a perspective view of a lens driving device according to a first embodiment of the present invention, in which a fixing unit and some components are omitted.

[0074] Fig.10 FIG. 1 is a bottom perspective view of a moving unit of the lens driving device according to the first embodiment of the present invention.

[0075] Fig.11is a bottom perspective view of a moving unit and related components of a lens driving device according to a first embodiment of the present invention, with a cover removed.

[0076] Fig.12 1 is a perspective view illustrating a base and a second substrate of the lens driving device according to the first embodiment of the present invention.

[0077] Fig.13 1 is a perspective view illustrating a moving unit and a second substrate of the lens driving device according to the first embodiment of the present invention.

[0078] Fig.14 It is from Fig.13 Observed from different directions Fig.13 A bottom perspective view of a lens drive device.

[0079] Fig.15 yes Fig.14 A bottom perspective view of the lens driving device with the cover and the second substrate removed.

[0080] Fig.16 yes Fig.15 A bottom perspective view of the lens drive device with the first retainer removed.

[0081] Fig.17 yes Fig.16 A bottom perspective view of a lens drive device.

[0082] Fig.18 is a plan view of the lens driving device according to the first embodiment of the present invention, in which the cover and the pressing portion of the first holder are removed.

[0083] Fig.19 1 is a perspective view illustrating a second moving unit and a substrate of the lens driving device according to the first embodiment of the present invention and related configurations.

[0084] Fig. 20 is in Fig.19 A bottom view and a partially enlarged view of the lens driving device in the state.

[0085] Fig.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.

[0086] Fig. 22 1 is a bottom perspective view illustrating a driving unit, a substrate, an elastic member, etc. of the lens driving device according to the first embodiment of the present invention.

[0087] Fig.23 1 is a plan view illustrating a driving unit, a substrate, and an elastic member of the lens driving device according to the first embodiment of the present invention.

[0088] Fig.24 1 is a perspective view illustrating a first substrate and a coil of the lens driving device according to the first embodiment of the present invention.

[0089] Fig.25 FIG. 1 is a perspective view illustrating a second substrate of the lens driving device according to the first embodiment of the present invention.

[0090] Fig.26 is a cross-sectional perspective view of the lens driving device according to the first embodiment of the present invention, in which a pressing portion of the first holder is removed.

[0091] Fig. 27 yes Fig.26 A cross-sectional perspective view of the present invention in which a pressing portion of a first retainer and the like are added.

[0092] Figures 28 to 30 FIG. 1 is a schematic diagram for explaining the autofocus driving of the lens driving device according to the first embodiment of the present invention. Fig.28 is a cross-sectional view illustrating a phenomenon of the moving unit in an initial state in which no current is applied to the first coil. Fig.29 is a cross-sectional view illustrating a phenomenon that the moving unit moves upward in the optical axis direction when a forward current is applied to the first coil. Fig.30 is a cross-sectional view illustrating a phenomenon in which the moving unit moves downward in the optical axis direction when a reverse current is applied to the first coil.

[0093] Figure 31 to Figure 33 FIG. 1 is a diagram for explaining the shake correction driving of the lens driving device according to the first embodiment of the present invention. Fig.31 is a cross-sectional view illustrating a phenomenon 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 a phenomenon that the second moving unit moves in the x-axis direction perpendicular to the optical axis when a current is applied to the second coil. Fig.33 is a cross-sectional view illustrating a phenomenon that the second moving unit moves in the y-axis direction perpendicular to both the optical axis and the x-axis when a current is applied to the third coil.

[0094] Fig.34 is an exploded perspective view of a camera device according to a first embodiment of the present invention.

[0095] Fig.35 is a perspective view of an optical device according to a first embodiment of the present invention.

[0096] Fig.36 is a perspective view of an optical device according to a modified embodiment.

[0097] Fig.37 is a conceptual diagram of a lens driving device according to a second embodiment of the present invention.

[0098] Fig.38 is a perspective view of a lens driving device according to a second embodiment of the present invention.

[0099] Fig.39 It is along Fig.38 A cross-sectional view taken along line AA.

[0100] Fig.40 It is along Fig.38 A cross-sectional view taken along line BB.

[0101] Fig.41 It is along Fig.38 A cross-sectional view taken along line CC.

[0102] Fig.42 is a cross-sectional view taken from above perpendicular to the optical axis of a lens driving device according to a second embodiment of the present invention.

[0103] Fig.43 FIG. 1 is an exploded perspective view of a lens driving device according to a second embodiment of the present invention.

[0104] Fig.44 is a perspective view of a lens driving device according to a second embodiment of the present invention, with a cover removed.

[0105] Fig.45 It's a picture. Fig.44 A magnified view of a portion of .

[0106] Fig.46a Observed from the other direction Fig.44 Stereoscopic diagram.

[0107] Fig.46b It is a perspective view illustrating a state in which the metal member of the AF moving unit is omitted in FIG. 46 .

[0108] Fig.47 2 is a perspective view illustrating a fixing unit and related components of a lens driving device according to a second embodiment of the present invention.

[0109] Fig.48 2 is a perspective view illustrating a moving unit and related components of a lens driving device according to a second embodiment of the present invention.

[0110] Fig.49 Observed from the front Fig.48 Front view of .

[0111] Fig.50is 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.

[0112] Fig.51 Observed from different directions Fig.48 Stereoscopic diagram.

[0113] Fig.52 yes Fig.51 A perspective view of the invention with the cover removed.

[0114] Fig.53 It is a bottom view of the AF moving unit and related parts of the lens driving device according to the second embodiment of the present invention, viewed from below.

[0115] Fig.54 Observed from different directions Fig.53 Bottom stereogram of .

[0116] Fig.55 This is an enlarged view Fig.54 A magnified view of a portion of .

[0117] Fig.56 2 is a perspective view illustrating an OIS moving unit and related components of a lens driving device according to a second embodiment of the present invention.

[0118] Fig.57a This is an enlarged view Fig.56 A magnified view of a portion of .

[0119] Fig.57b is from Fig.57a Cross-sectional view of AA observation.

[0120] Fig.58a 2 is a cross-sectional view illustrating a pressurizing structure of an OIS guide ball of a lens driving device according to a second embodiment of the present invention.

[0121] Figure 58b 2 is a cross-sectional view illustrating a coupling structure of an elastic member and a wire of a lens driving device according to a second embodiment of the present invention.

[0122] Fig.59 Observed from different directions Fig.56 Bottom stereogram of .

[0123] Fig.60 2 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.

[0124] Fig.61 1 is a perspective view illustrating an elastic member and a wire material of a lens driving device according to a second embodiment of the present invention.

[0125] Figure 62 to Figure 64 FIG. 1 is a schematic diagram for explaining the automatic focus driving of the lens driving device according to the second embodiment of the present invention. Fig.62 is a cross-sectional view illustrating a phenomenon of the moving unit in an initial state in which no current is applied to the AF coil. Fig.63 is a cross-sectional view illustrating a phenomenon in which the moving unit moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.64 is a cross-sectional view illustrating a phenomenon in which the moving unit moves downward in the optical axis direction when a reverse current is applied to the AF coil.

[0126] Figure 65 to Figure 67 FIG. 1 is a diagram for explaining the hand shake correction drive of the lens driving device according to the second embodiment of the present invention. Fig.65 is a cross-sectional view illustrating a phenomenon of a moving unit in an initial state in which no current is applied to the OIS-x coil and the OIS-y coil. Fig.66 is a cross-sectional view illustrating that the OIS moving unit moves in the x-axis direction perpendicular to the optical axis when a current is applied to the OIS-x coil. Fig.67 is a cross-sectional view illustrating that the OIS moving unit moves in the y-axis direction perpendicular to both the optical axis and the x-axis when a current is applied to the OIS-y coil.

[0127] Fig.68 is an exploded perspective view of a camera device according to a second embodiment of the present invention.

[0128] Fig.69 is a perspective view of an optical device according to a second embodiment of the present invention.

[0129] Fig.70 is a perspective view of an optical device according to a modified embodiment.

[0130] Fig.71 is a conceptual diagram of a lens driving device according to a third embodiment of the present invention.

[0131] Fig.72 is a perspective view of a lens driving device according to a third embodiment of the present invention.

[0132] Fig.73 It is along Fig.72 A cross-sectional view taken along line AA.

[0133] Fig.74 It is along Fig.72 A cross-sectional view taken along line BB.

[0134] Fig.75 It is along Fig.72 A cross-sectional view taken along line CC.

[0135] Fig.76 yes Fig.75 A magnified view of a portion of .

[0136] Fig.77 is a cross-sectional view taken along a line perpendicular to the optical axis of a lens driving device according to a third embodiment of the present invention, viewed from above.

[0137] Fig.78 is an exploded perspective view of a lens driving device according to a third embodiment of the present invention.

[0138] Fig.79 is a perspective view of a lens driving device according to a third embodiment of the present invention, with a cover removed.

[0139] Fig.80 yes Fig.79 A magnified view of a portion of .

[0140] Fig.81 Observed from different directions Fig.80 Stereoscopic diagram.

[0141] Fig.82 : is a perspective view illustrating a fixing unit and related configurations of a lens driving device according to a third embodiment of the present invention.

[0142] Fig.83 : is a perspective view illustrating a moving unit and related components of a lens driving device according to a third embodiment of the present invention.

[0143] Fig.84 Observed from the front Fig.83 Front view of .

[0144] Fig.85 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.

[0145] Fig.86 Observed from different directions Fig.83 Stereoscopic diagram.

[0146] Fig.87 yes Fig.86 A perspective view of the invention with the cover removed.

[0147] Fig.88 It is a bottom view of the AF moving unit and related parts of the lens driving device according to the third embodiment of the present invention, viewed from below.

[0148] Fig.89 Observed from different directions Fig.88 Bottom stereogram of .

[0149] Fig.90 is a perspective view illustrating an OIS moving unit and related components of a lens driving device according to a third embodiment of the present invention.

[0150] Fig.91 is a cross-sectional view illustrating an arrangement structure of an elastic member of a lens driving device according to a third embodiment of the present invention.

[0151] Fig.92 Observed from different directions Fig.90 Bottom stereogram of .

[0152] Fig.93 1 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.

[0153] Fig.94 1 is a perspective view illustrating an elastic member and a wire material of a lens driving device according to a third embodiment of the present invention.

[0154] Figures 95 to 97 FIG. 1 is a diagram for explaining the automatic focus driving of the lens driving device according to the third embodiment of the present invention. Fig.95 is a cross-sectional view illustrating a phenomenon of the moving unit in an initial state in which no current is applied to the AF coil. Fig.96 is a cross-sectional view illustrating a phenomenon in which the moving unit moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.97 is a cross-sectional view illustrating that the moving unit moves downward in the optical axis direction when a reverse current is applied to the AF coil.

[0155] Figures 98 to 100 FIG. 1 is a diagram for explaining the shake correction driving of the lens driving device according to the third embodiment of the present invention. Fig.98 is a cross-sectional view illustrating the moving unit in an initial state in which no current is applied to the OIS-x coil and the OIS-y coil. Fig.99 is a cross-sectional view illustrating that the OIS moving unit moves in the x-axis direction perpendicular to the optical axis when a current is applied to the OIS-x coil. Fig.100 is a cross-sectional view illustrating that the OIS moving unit moves in the y-axis direction perpendicular to both the optical axis and the x-axis when a current is applied to the OIS-y coil.

[0156] Fig.101 is an exploded perspective view of a camera device according to a third embodiment of the present invention.

[0157] Fig.102 is a perspective view of an optical device according to a third embodiment of the present invention.

[0158] Fig.103 is a perspective view of an optical device according to a modified embodiment. DETAILED DESCRIPTION

[0159] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0160] However, the technical concept of the present invention is not limited to some embodiments to be described, but can be implemented in various forms, and within the scope of the technical concept of the present invention, one or more of the constituent elements can be selectively combined or replaced between the various embodiments.

[0161] In addition, unless explicitly defined and described, the terms (including technical terms and scientific terms) used in the embodiments of the present invention may be interpreted as meanings that can be generally understood by those skilled in the art, and commonly used terms, such as terms defined in dictionaries, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0162] In addition, the terms used in this specification are used to describe the embodiments and are not intended to limit the present invention.

[0163] In this specification, unless specifically stated in a phrase, a singular form may include a plural form, and when described as "at least one (or more than one) of A and B and C", it may include one or more of all combinations that can be combined with A, B and C.

[0164] In addition, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only intended to distinguish components from other components, and these terms do not limit the nature, order, or sequence of the components.

[0165] Furthermore, when a component is described as being “connected,” “coupled” or “interconnected” to another component, the component is not only directly connected, coupled or interconnected to the other component, but may also include a case where the component is “connected,” “coupled” or “interconnected” due to another component between the other components.

[0166] In addition, when described as being formed or disposed "on" or "under" each component, "on" or "under" indicates that it includes not only a case where two components are in direct contact but also a case where one or more other components are formed or disposed between the two components. In addition, when expressed as "on" or "under", it means that not only an upward direction but also a downward direction relative to one component can be included.

[0167] The optical axis (see Fig.28 The “OA) direction” is defined as the optical axis direction of the lens and / or image sensor connected to the lens driving device.

[0168] The "vertical direction" used hereinafter may be a direction parallel to or the same as the optical axis. The vertical direction may correspond to the "z-axis direction". The "horizontal direction" used hereinafter 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".

[0169] The "auto focus (AF) function" used hereinafter is defined as a function of automatically focusing on an object by adjusting the distance to the image sensor by moving the lens in the optical axis direction according to the distance of the object, so that a clear image of the object can be obtained on the image sensor. In addition, "closed-loop auto focus (CLAF) control" is defined as detecting the distance between the image sensor and the lens and controlling the position of the lens through real-time feedback to improve the accuracy of focus adjustment.

[0170] The "optical image stabilization (OIS) function" used hereinafter is defined as a function of moving or tilting the lens in a direction perpendicular to the optical axis to offset hand shake so as to prevent the image or video from shaking due to the user's hand shake. In addition, "closed loop auto focus (CLAF) control" is defined as feedback that detects the position of the lens relative to the image sensor and controls the lens position in real time in order to improve the accuracy of hand shake correction.

[0171] Hereinafter, one of the “AF moving unit 1200 ” and the “OIS moving unit 1300 ” is referred to as a “first moving unit” and the other may be referred to as a “second moving unit”.

[0172] Hereinafter, one of the “AF driving unit 1400 ,” the “OIS-x driving unit 1500 ,” and the “OIS-y driving unit 1600 ” is referred to as a “first driving unit,” another is referred to as a “second driving unit,” and still another may be referred to as a “third driving unit.”

[0173] Hereinafter, one of the “AF magnet 1410 ,” the “OIS-x magnet 1510 ,” and the “OIS-y magnet 1610 ” may be referred to as a “first magnet,” another as a “second magnet,” and still another as a “third magnet.”

[0174] Hereinafter, one of the “AF coil 1420 ,” the “OIS-x coil 1520 ,” and the “OIS-y coil 1620 ” is referred to as a “first coil,” another is referred to as a “second coil,” and still another may be referred to as a “third coil.”

[0175] Hereinafter, one of the “AF sensor 1430 ,” the “OIS-x sensor 1530 ,” and the “OIS-y sensor 1630 ” is referred to as a “first sensor,” another is referred to as a “second sensor,” and still another may be referred to as a “third sensor.”

[0176] Hereinafter, one of the “inner substrate 1710 ” and the “outer substrate 1720 ” is referred to as a “first substrate” and the other may be referred to as a “second substrate”.

[0177] Hereinafter, one of the “AF guide ball 1810 ” and the “OIS guide ball 1820 ” is referred to as a “first ball” and the other may be referred to as a “second ball”.

[0178] Hereinafter, the “lower elastic member 1910 ” or the “upper elastic member 1920 ” is referred to as a “first elastic member” and the other may be referred to as a “second elastic member”.

[0179] Hereinafter, one of the “AF moving unit 2200 ” and the “OIS moving unit 2300 ” is referred to as a “first moving unit” and the other may be referred to as a “second moving unit”.

[0180] Hereinafter, one of the “AF driving unit 2400 ,” the “OIS-x driving unit 2500 ,” and the “OIS-y driving unit 2600 ” is referred to as a “first driving unit,” another is referred to as a “second driving unit,” and still another may be referred to as a “third driving unit.”

[0181] Hereinafter, one of the “AF magnet 2410 ,” the “OIS-x magnet 2510 ,” and the “OIS-y magnet 2610 ” is referred to as a “first magnet,” another is referred to as a “second magnet,” and still another may be referred to as a “third magnet.”

[0182] Hereinafter, one of the “AF coil 2420 ,” the “OIS-x coil 2520 ,” and the “OIS-y coil 2620 ” is referred to as a “first coil,” another is referred to as a “second coil,” and still another may be referred to as a “third coil.”

[0183] Hereinafter, one of the “AF sensor 2430 ,” the “OIS-x sensor 2530 ,” and the “OIS-y sensor 2630 ” is referred to as a “first sensor,” another is referred to as a “second sensor,” and still another may be referred to as a “third sensor.”

[0184] Hereinafter, one of the “inner substrate 2710 ” and the “outer substrate 2720 ” is referred to as a “first substrate” and the other may be referred to as a “second substrate”.

[0185] Hereinafter, the “lower elastic member 2910 ” or the “upper elastic member 2920 ” is referred to as a “first elastic member” and the other may be referred to as a “second elastic member”.

[0186] Hereinafter, components of a lens driving device according to a first embodiment of the present invention will be described with reference to the accompanying drawings.

[0187] Figure 1 is a conceptual diagram of a lens driving device according to a first embodiment of the present invention; Figure 2 is a perspective view of a lens driving device according to a first embodiment of the present invention; Figure 3 It is along Figure 2 A cross-sectional view taken along line AA; Figure 4 It is along Figure 2 A cross-sectional view taken along line BB; Figure 5 is an exploded perspective view of a lens driving device according to a first embodiment of the present invention; Figure 6 is a perspective view of a lens driving device according to a first embodiment of the present invention, with a cover removed; Figure 7 It's a picture. Figure 6 an enlarged view of an enlarged portion of; Figure 8 It is from Figure 6 Observed from different directions Figure 6 A stereoscopic diagram of a lens driving device in a state of Fig. 9 is a perspective view of a lens driving device according to a first embodiment of the present invention, in which a fixing unit and some components are omitted; Fig.11 is a bottom perspective view of a moving unit and related components of a lens driving device according to a first embodiment of the present invention, with a cover removed; Fig.12 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; Fig.13 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; Fig.14 It is from Fig.13 Observed from different directions Fig.13 A bottom perspective view of a lens driving device;

[0188] Fig.15 yes Fig.14 A bottom perspective view of a lens driving device with a cover and a second substrate removed; Fig.16 yes Fig.15 A bottom perspective view of the lens driving device with the first retainer removed; Fig.17 yes Fig.16 A bottom perspective view of a lens driving device; Fig.18is a plan view of the lens driving device according to the first embodiment of the present invention, in which the cover and the pressing portion of the first holder are removed; Fig.19 is a perspective view illustrating a second moving unit and a substrate of the lens driving device according to the first embodiment of the present invention and related configurations; Fig. 20 is in Fig.19 A bottom view and a partial enlarged view of the lens driving device in a state; Fig.21 is a perspective view of a first holder and a second substrate and related components of a lens driving device according to a first embodiment of the present invention; Fig. 22 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; Fig.23 is a plan view illustrating a driving unit, a substrate, and an elastic member of a lens driving device according to a first embodiment of the present invention; Fig.24 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; Fig.25 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, in which a pressing portion of the first holder is removed; and Fig. 27 yes Fig.26 A cross-sectional perspective view of the present invention in which a pressing portion of a first retainer and the like are added.

[0189] 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.

[0190] The lens driving device 10 may include a fixing unit 100. The fixing unit 100 may be a relatively fixed part when the moving unit moves. The moving unit may move relative to the fixing unit 100.

[0191] The lens driving device 10 may include a base 110. The fixing unit 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 coupled to 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 lower plate of the base 110. The first holder 210 and the second holder 310 may be disposed inside the base 110. The first holder 210 and the second holder 310 may be disposed inside a side plate of the base 110.

[0192] In the first embodiment of the present invention, all of the first to third magnets 410, 510, 610 may be disposed on the base 110. All of the first to third magnets 410, 510, 610 may be disposed on the fixing unit 100. That is, all of the first to third magnets 410, 510, 610 may remain in a fixed state during the autofocus operation. In addition, all of the first to third magnets 410, 510, 610 may remain in a fixed state during the shake correction operation. During the autofocus operation, the first magnet 410 is fixed and the first coil 420 may move. During the shake correction operation, the second magnet 510 and the third magnet 610 are fixed and the second coil 520 and the third coil 620 may move.

[0193] The base 110 may include a lower plate. The base 110 may include a side plate. The side plate may be a “side portion.” The side plate of the base 110 may extend from an upper surface of the lower plate.

[0194] The side panels of the base 110 may include a plurality of side panels. The side panels of the base 110 may include four side panels. However, one or more of the four side panels of the base 110 may be omitted. The side panels of the base 110 may include first to fourth side panels 111, 112, 113, 114. The base 110 may include a first side panel 111 and a second side panel 112 disposed opposite to each other, and a third side panel 113 and a fourth side panel 114 disposed opposite to each other.

[0195] The side of the base 110 may include a plurality of side portions. The side portion of the base 110 may include four side portions. However, at least one of the four side portions of the base 110 may be omitted. The side portion of the base 110 may include a first side portion to a fourth side portion. The base 110 may include a first side portion and a second side portion disposed opposite to each other, and a third side portion and a fourth side portion disposed opposite to each other.

[0196] 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.

[0197] The first side plate 111 of the base 110 may include a groove 111a. The groove 111a may be a "first ball accommodating 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 embodiment, both the first groove and the second groove may contact the first ball 810 at two points.

[0198] The second side plate 112 of the base 110 may include a protruding portion 112a. The protruding portion 112a may protrude outward. The leg portion 722 of the second substrate 720 may be disposed above and below the protruding portion 112a. A groove may be formed in the protruding portion 112a so as not to interfere with the leg portion 722 of the second substrate 720 when the leg portion 722 of the second substrate 720 moves.

[0199] The base 110 may include a step portion 115. The step portion 115 may be formed at a lower portion of an outer surface of the base 110. The step portion 115 may protrude from the outer surface of the base 110. The side plate 122 of the cover 120 may be disposed on the step portion 115 of the base 110.

[0200] The lens driving device 10 may include a cover 120. The fixing unit 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 accommodate the first holder 210 therein. The cover 120 may accommodate the second holder 310 therein. The cover 120 may be a shielding member. The cover 120 may be a shielding cover.

[0201] The cover 120 may include an upper plate 141. The upper plate 141 may be disposed on the moving unit. The upward movement of the moving unit may be restricted by the moving unit being in contact with the upper plate 141. The upper plate 141 may include a hole through which light passes.

[0202] The cover 120 may include a side panel 142. The side panel 142 may extend from the upper panel 141. The side panel 142 may be disposed on the base 110. The side panel 142 may be disposed in a step portion protruding from a lower portion of an outer surface of the base 110. The side panel 142 may include a plurality of side panels. The side panel 142 may include four side panels. The side panel 142 may include a first side panel and a second side panel disposed opposite to each other, and a third side panel and a fourth side panel disposed opposite to each other.

[0203] The lens driving device 10 may include a moving unit. The moving unit may be disposed in the fixed unit 100. The moving unit may be disposed inside the fixed unit 100. The moving unit may be disposed on the fixed unit 100. The moving unit may be movably disposed in the fixed unit 100. The moving unit may be moved relative to the fixed unit 100 by the driving unit. The moving unit may move during AF driving. The moving unit may move during OIS driving. The moving unit may be coupled with a lens.

[0204] 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 in the fixed unit 100. The first moving unit 200 may be disposed inside 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 movably disposed in the fixed unit 100. The first moving unit 200 may be moved in the optical axis direction relative to the fixed unit 100 by the first driving unit. The first moving unit 200 may move during AF driving.

[0205] 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 inside the base 110. The first holder 210 may be disposed on the base 110. The first holder 210 may be disposed inside 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.

[0206] The lens driving device 10 may include a body portion 211. The first holder 210 may include the body portion 211. The body portion 211 may be formed to be separated from the pressing portion 212. The body portion 211 may be coupled with a second elastic member 870.

[0207] The first holder 210 may include a metal member 211a. The body portion 211 may include the metal member 211a. The metal member 211a may be insert-molded into the body portion 211. At least a portion of the metal member 211a may be disposed on an upper surface of the body portion 211. The metal member 211a may be disposed to enhance the strength of the body portion 211.

[0208] The first retainer 210 may include a groove 211b. The body portion 211 may include a groove 211b. The groove 211b may be a "first ball accommodating 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 embodiment, both the first groove and the second groove may contact the first ball 810 at two points.

[0209] The first holder 210 may include a protrusion 211c. The body portion 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. Leg portions 722 may be provided on upper and lower surfaces of the protrusion 211c.

[0210] The first retainer 210 may include a protrusion 211d. The body portion 211 may include a protrusion 211d. The protrusion 211d may be formed in the protruding portion 211c. The protrusion 211d may be formed to protrude on the protruding portion 211c. The protrusion 211c may be formed on at least one of the upper surface and the lower surface of the protruding portion 211c. The protrusion 211c may be formed to catch the leg portion 722. By doing so, the protrusion 211c can prevent the leg portion 722 from being separated from the original position.

[0211] The first holder 210 may include a hole 211e. The body portion 211 may include the hole 211e. The hole 211e may be formed in an upper plate of the body portion 211. The pressing portion 212 may be inserted into the hole 211e. The protrusion 212a of the pressing portion 212 may be inserted into the hole 211e.

[0212] The lens driving device 10 may include a pressing portion 212. The first holder 210 may include a pressing portion 212. The pressing portion 212 may be coupled to an upper surface of the body portion 211. The pressing portion 212 may be coupled to the body portion 211. The pressing portion 212 may be inserted into the body portion 211 from an upper side and coupled to the body portion 211. The pressing portion 212 may press the second rolling ball 820. The pressing portion 212 may be in direct contact with the second rolling ball 820.

[0213] The first holder 210 may include a protrusion 212a. The pressing portion 212 may include the protrusion 212a. The protrusion 212a may be coupled to the hole 211e of the body portion 211. The protrusion 212a may include a plurality of protrusions. The protrusion 212a may include four protrusions.

[0214] The first retainer 210 may include a groove 212b. The pressing portion 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 on the lower surface of the protrusion 212a in a concave manner. The second ball 820 may be disposed in the groove 212b. The groove 212b may be in direct contact with the second ball 820.

[0215] The lens driving device 10 may include a cover 220. The first moving unit 200 may include a cover 220. The cover 220 may be coupled to the first holder 210. The cover 220 may be coupled to the lower surface of the first holder 210. The cover 220 may be coupled to the first holder 210 from the lower side. The cover 220 may include a hook 221. The hook 221 of the cover 220 may be coupled to the first holder 210. The hook 211 of the cover 220 protrudes upward and may be coupled to the side surface of the first holder 210.

[0216] 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 inside the first moving unit 200. The second moving unit 300 may be disposed in a movably manner. The second moving unit 300 may be moved relative to the fixed unit 100 and the first moving unit 200 in a direction perpendicular to the optical axis by the second driving unit. The second moving unit 300 may move during OIS driving.

[0217] The lens driving device 10 may include a second holder 310. The second moving unit 300 may include a 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 inside the first holder 210. The second holder 310 may be disposed inside the base 110. The second holder 310 may be disposed on the base 110. The second holder 310 may be disposed inside the cover 120. The second holder 310 may be configured to be movable in a direction perpendicular to the optical axis.

[0218] The second holder 310 may include an outer surface. The second holder 310 may include a plurality of side surfaces. The second holder 310 may include a first side surface and a second side surface disposed opposite to each other, and a third side surface and a fourth side surface disposed opposite to 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.

[0219] The second retainer 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 retainer 310. The first groove 311 may be formed on the upper surface of the second retainer 310 in a concave manner. The first groove 311 may be provided at a position corresponding to the first elastic member 860 to prevent interference between the second retainer 310 and the first elastic member 860.

[0220] The second retainer 310 may include a second groove 312. The second groove 312 may be a "second ball receiving groove". The 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 direction of the optical axis. The second groove 312 may include a plurality of grooves. The second groove 312 may include four grooves. The second groove 312 may be in contact with the second ball 820 at one point. Alternatively, the second groove 312 may be in contact with the second ball 820 at two points. The number of points at which the second retainer 310 and the second ball 820 contact may vary due to 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 additionally recessed from the first groove 311.

[0221] The second holder 310 may include a lateral stopper 313. The lateral stopper 313 may limit the lateral travel of the second holder 310. That is, when the second holder 310 moves to a maximum value, the lateral stopper 313 of the second holder 310 may contact at least one of the first holder 210 and the base 110. The lateral stopper 313 may be formed on an outer surface of the second holder 310. The lateral stopper 313 may protrude outward from the side surface of the second holder 310.

[0222] The lens driving device 10 may include a driving unit. The driving unit may move the moving unit relative to the fixing 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.

[0223] 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.

[0224] In the first embodiment of the present invention, the first holder 210 and the second holder 310 can move in the optical axis direction by 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.

[0225] The lens driving device 10 may include a first magnet 410. The first driving unit may include a 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 in the side plate 122 of the cover 120. The first magnet 410 may be disposed on the outer surface of the base 110. The first magnet 410 may be disposed on the inner side 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 attached to the base 110 by an adhesive. The first magnet 410 may be disposed inside 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 and the first coil 420 may face each other. The first magnet 410 may overlap with the first coil 420 in a direction perpendicular to the optical axis.

[0226] The first magnet 410 may be a quadrupole magnet. The first magnet 410 may include a quadrupole magnetized magnet. The first magnet 410 may include a first magnet portion and a second magnet portion, the first magnet portion including an N pole and an S pole, and the second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a vertical direction. The first magnet portion and the second magnet portion may be arranged spaced apart from each other in the vertical direction, and a neutral portion may be provided between the first magnet portion and the second magnet portion.

[0227] 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 and the first magnet 410 may face each other. The first coil 420 may be disposed at a position corresponding to the first magnet 410. The first coil 420 may overlap with the first magnet 410 in a direction perpendicular to the optical axis. The first coil 420 may be disposed in the first substrate 710. The first coil 420 may be disposed in the first portion 711 of the first substrate 740. The first coil 420 may be disposed in the first holder 210. The first coil 420 may be disposed in the first moving unit 200.

[0228] 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 in the substrate 740. The first sensor 430 may be disposed in the first portion 711 of the substrate 740. The first sensor 430 may detect the first magnet 410. The first sensor 430 may detect the movement of the first magnet 410. The movement amount or position of the first magnet 410 detected by the first sensor 430 may be used for feedback of the autofocus drive.

[0229] 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.

[0230] The first sensor 430 may be disposed inside the first coil 420. The first sensor 430 may overlap with the neutral portion of the first magnet 410 in a direction perpendicular to the optical axis. In a modified embodiment, the first sensor 430 may be disposed outside the first coil 420.

[0231] 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 enable the second holder 310 to move in a first direction perpendicular to the optical axis. The second driving unit may enable the second holder 310 to move in a first direction perpendicular to the optical axis by electromagnetic force. At this time, the first direction may be an x-axis direction. The second driving unit may include a coil and a magnet.

[0232] In the first embodiment of the present invention, the second holder 310 can move in a first direction perpendicular to the optical axis direction by the interaction between the second coil 520 and the second magnet 510. In this case, the first direction can be the x-axis direction. The second coil 520 and the second holder 310 can move in the x-axis direction as a unit.

[0233] The lens driving device 10 may include a second magnet 510. The second driving unit may include a second magnet 510. The second magnet 510 may be an "OIS-x magnet". The second magnet 510 may be disposed in the base 110. The second magnet 510 may be disposed on an outer surface of the base 110. The second magnet 510 may be disposed on an 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 attached to the base 110 with an adhesive. The second magnet 510 may be disposed inside 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 and the second coil 520 may face each other. The second magnet 510 may overlap the second coil 520 in a direction perpendicular to the optical axis.

[0234] 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 an N pole and an S pole.

[0235] The lens driving device 10 may include a second coil 520. The second driving unit may include a 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 and the second magnet 510 may face each other. The second coil 520 may be disposed at a position corresponding to the second magnet 510. The second coil 520 may overlap with the second magnet 510 in a direction perpendicular to the optical axis. The second coil 520 may be disposed in the first substrate 710. The second coil 520 may be disposed in the second portion 712 of the first substrate 710. The second coil 520 may be disposed in the second holder 310. The second coil 520 may be disposed in the second moving unit 300.

[0236] 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 in the first substrate 710. The second sensor 530 may be disposed in the second portion 712 of the first substrate 710. The second sensor 530 may include a Hall sensor. The second sensor 530 may detect the second magnet 510. The second sensor 530 may detect the magnetic force of the second magnet 510. The second sensor 530 may be disposed inside 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 detect the movement of the second magnet 510. The movement amount or position of the second magnet 510 detected by the second sensor 530 may be used for feedback of the shake compensation drive in the x-axis direction.

[0237] 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 enable the second holder 310 to move in a second direction perpendicular to both the optical axis and the first direction. The third driving unit may enable the second holder 310 to move in a second direction perpendicular to both the optical axis and the first direction by electromagnetic force. In this case, the second direction may be a y-axis direction. The third driving unit may include a coil and a magnet.

[0238] In the first embodiment of the present invention, the second holder 310 can move in a second direction perpendicular to both the optical axis direction and the first direction through the interaction between the third coil 620 and the third magnet 610. In this case, the second direction can be the y-axis direction. The third coil 620 and the second holder 310 can move in the y-axis direction as a whole.

[0239] The lens driving device 10 may include a third magnet 610. The third driving unit may include a third magnet 610. The third magnet 610 may be an "OIS-y magnet". The third magnet 610 may be disposed in 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 attached to the base 110 with an adhesive. The third magnet 610 may be disposed inside 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 and the third coil 620 may face each other. The third magnet 610 may overlap the third coil 620 in a direction perpendicular to the optical axis.

[0240] 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 an N pole and an S pole.

[0241] The lens driving device 10 may include a third coil 620. The third driving unit may include a 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 at an opposite side of the first coil 420 relative to the optical axis. The third coil 620 may move in the y-axis direction 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 and the third magnet 610 may face each other. The third coil 620 may be disposed at a position corresponding to the third magnet 610. The third coil 620 may overlap with the third magnet 610 in a direction perpendicular to the optical axis. The third coil 620 may be disposed in the first substrate 710. The third coil 620 may be disposed in the third portion 713 of the first substrate 710. The third coil 620 may be disposed in the second holder 310. The third coil 620 may be provided in the second moving unit 300 .

[0242] 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 in the first substrate 710. The third sensor 630 may be disposed in the third portion 713 of the first substrate 710. The third sensor 630 may include a Hall sensor. The third sensor 630 may detect the third magnet 610. The third sensor 630 may detect the magnetic force of the third magnet 610. The third sensor 630 may be disposed in the third coil 620. The third sensor 630 may overlap with 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 detect the movement of the third magnet 610. The movement amount or position of the third magnet 610 detected by the third sensor 630 may be used for feedback of the shake compensation drive in the y-axis direction.

[0243] 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.

[0244] The lens driving device 10 may include a first substrate 710. The first substrate 710 may be electrically connected to the coils 420, 520, 620. The first substrate 710 may be electrically connected to the sensors 430, 530, 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 as to be movable 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.

[0245] The first substrate 710 may include a first portion 711. The first portion 711 may be disposed in the first holder 210. The first coil 420 may be disposed in the first portion 711 of the first substrate 710. The first sensor 430 may be disposed in the first portion 711 of the first substrate 710. A yoke 830 may be disposed in the first portion 711 of the first substrate 710.

[0246] The first substrate 710 may include a second portion 712. The second portion 712 may be disposed in the second holder 310. The second portion 712 may be disposed on a second side surface of the second holder 310. The second coil 520 may be disposed in the second portion 712 of the first substrate 710. The second sensor 530 may be disposed in the second portion 712 of the first substrate 710.

[0247] The first substrate 710 may include a third portion 713. The third portion 713 may be disposed in 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 in the third portion 713 of the first substrate 710. The third sensor 630 may be disposed in the third portion 713 of the first substrate 710.

[0248] 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 surface of the second holder 310 and the first holder 210.

[0249] 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 connected to the coil 420, 520, 620. The terminal 714a may be electrically connected to the sensor 430, 530, 630.

[0250] 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 to penetrate the fourth portion 714 of the first substrate 710. The hole 714b may be provided at a position corresponding to the lateral stopper 313 of the second holder 310. Due to the hole 714b, the first substrate 710 may not interfere with the lateral stopper 313 of the second holder 310.

[0251] The lens driving device 10 may include a second substrate 720. The second substrate 720 may be disposed in the base 110. The second substrate 720 may be electrically connected to the coils 420, 520, 620. The second substrate 720 may be electrically connected to the sensors 430, 530, 630. The second substrate 720 may connect the first holder 210 and the base 110. The second substrate 720 may elastically connect the first holder 210 and the base 110. The second substrate 720 may support the first holder 210 so as to be movable relative to the base 110. The second substrate 720 may guide the first holder 210 to move relative to the base 110 in the optical axis direction. 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.

[0252] The second substrate 720 may include a body portion 721. The body portion 721 may be disposed in the base 110. The body portion 721 may be formed to surround the side surface of the base 110. The body portion 721 may be disposed on three side surfaces of the base 110. The body portion 721 may include two terminal portions. The two terminal portions may be disposed on opposite sides relative to the optical axis. The terminal portion may include a first terminal 721a.

[0253] The second substrate 720 may include a first terminal 721a. The body portion 720 of the second substrate 720 may include a 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 by solder. The first terminal 721a may be coupled to the terminal 714a of the first substrate 710 by a conductive member. The first terminal 721a may be connected to the terminal 714a of the first substrate 710. The first terminal 721a may be electrically connected to the terminal 714a of the first substrate 710.

[0254] The second substrate 720 may include a leg portion 722. The leg portion 722 may be an "extension portion". The leg portion 722 may extend from the body portion 721. At least a portion of the leg portion 722 may move with the first holder 210. The extension portion may extend from the body portion 721. At least a portion of the extension portion may move with the first holder 210. The leg portion 722 may include a plurality of leg portions. The leg portion 722 may include a first leg portion and a second leg portion. The second leg portion may be disposed below the first leg portion.

[0255] The second substrate 720 may include a second terminal 722a. The leg portion 722 of the second substrate 720 may include a second terminal 722a. The second terminal 722a may be electrically connected to the first terminal 721a. The second terminal 722a may be disposed at the lower end portion of the base 110. The second terminal 722a may be coupled to the printed circuit board 50. The second terminal 722a may be coupled to the terminal of the printed circuit board 50 by solder. The second terminal 722a may be coupled to the terminal of the printed circuit board 50 by a conductive member. The second terminal 722a may be connected to the terminal of the printed circuit board 50. The second terminal 722a may be electrically connected to the terminal of the printed circuit board 50.

[0256] 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 may guide the movement of the moving unit relative to the fixing unit 100 in a specific direction.

[0257] 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 may 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 along the first direction. The first ball 810 may be disposed in a groove 111a of the base 110. The first ball 810 may be disposed in a first groove 211b of the first holder 210. The first ball 810 may include a first-first ball contacting the base 110 and the first holder 210 at four points, and a first-second ball contacting the base 110 and the first holder 210 at three points. The first ball 810 may have a spherical shape. The first ball 810 may be formed of metal. Grease may be applied to the surface of the first ball 810.

[0258] The first rolling ball 810 may include a plurality of rolling balls. The first rolling ball 810 may include eight rolling balls. Four first rolling balls 810 may be disposed on one side of the first magnet 410 , and the remaining four first rolling balls 810 may be disposed on the other side of the first magnet 410 .

[0259] 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 may guide the movement of the second retainer 310 relative to the first retainer 210 in a direction perpendicular to the optical axis. The second ball 820 may be disposed between the first retainer 210 and the second retainer 310. The second ball 820 may be disposed between the first retainer 210 and the second retainer 310 along the optical axis direction.

[0260] The second rolling ball 820 may be disposed between the pressing portion 212 of the first retainer 210 and the second retainer 310. The second rolling ball 820 may be pressed between the first retainer 210 and the second retainer 310 by the pressing force of the elastic member 850. During the process of coupling with the body portion 211, the pressing portion 212 may press the second rolling ball 820 downward. During the process of coupling with the body portion 211, the pressing portion 212 may press the second rolling ball 820 toward the second retainer 310. At this time, the second retainer 310 may press the second rolling ball 820 toward the pressing portion 212 by the restoring force of the elastic member 850. Therefore, the second rolling ball 820 may be pressed between the pressing portion 212 and the second retainer 310.

[0261] The second ball bearing 820 can guide the second retainer 310 to move in the first direction and the second direction perpendicular to the optical axis direction relative to the first retainer 210. That is, the second ball bearing 820 can guide the second retainer 310 to move in the x-axis direction and the y-axis direction. In other words, the second ball bearing 820 can guide the movement in both the x-axis direction and the y-axis direction. For reference, in the first embodiment of the present invention, the ball bearings for guiding the x-axis direction and the ball bearings for guiding the y-axis direction are arranged as one body, and the size of the lens driving device 10 can be minimized when compared with the comparative example in which the ball bearings for guiding the x-axis direction and the ball bearings for guiding the y-axis direction are arranged separately. In particular, the height of the lens driving device 10 in the optical axis direction can be reduced. In this way, the height protruding from the smartphone, i.e., the shoulder height, can be minimized. The second ball bearing 820 may include a plurality of ball bearings. The second ball bearing 820 may include four ball bearings.

[0262] The lens driving device 10 may include a yoke 830. The yoke 830 may be disposed in 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 formed of metal. The first ball bearing 810 may be pressed between the base 110 and the first retainer 210 by the attractive force between the yoke 830 and the first magnet 410. That is, the contact state of the first ball bearing 810 with the base 110 and the first retainer 210 may be maintained by the attractive force between the yoke 830 and the first magnet 410.

[0263] The lens driving device 10 may include an elastic member 850. The elastic member 850 may be formed to pressurize the second ball bearing 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 bearing 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 formed of metal.

[0264] 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 an upper surface of the second holder 310. The first elastic member 860 may be disposed in the second holder 310. The first elastic member 860 may be disposed on an upper portion of the second holder 310. The first elastic member 860 may be disposed above the second holder 310. The first elastic member 860 may be disposed perpendicular to the optical axis.

[0265] 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 in the first holder 210. The second elastic member 870 may be disposed on the lower portion 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 body portion 721. The second elastic member 870 may be coupled to the lower surface of the body portion 721. The second elastic member 870 may be disposed perpendicular to the optical axis.

[0266] The lens driving device 10 may include a third elastic member 880. The third elastic member 880 may be a "side portion 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.

[0267] Hereinafter, auto focus (AF) driving of a lens driving device according to a first embodiment of the present invention will be described with reference to the accompanying drawings.

[0268] Figures 28 to 30 FIG. 1 is a schematic diagram for explaining the autofocus driving of the lens driving device according to the first embodiment of the present invention. Fig.28 is a cross-sectional view illustrating a phenomenon of the moving unit in an initial state in which no current is applied to the first coil. Fig.29 is a cross-sectional view illustrating a phenomenon that the moving unit moves upward in the optical axis direction when a forward current is applied to the first coil. Fig.30is a cross-sectional view illustrating a phenomenon in which the moving unit moves downward in the optical axis direction when a reverse current is applied to the first coil.

[0269] In an initial position where no current is applied to the first coil 420, the moving unit may be disposed at a position spaced apart from both the upper plate 121 of the cover 120 and the base 110. At this time, the moving unit may be the first moving unit 200. In addition, the moving unit may include the first moving unit 200 and the second moving unit 300.

[0270] When a positive current is applied to the first coil 420, the first coil 420 may move upward in the optical axis direction due to the electromagnetic interaction between the first coil 420 and the first magnet 410 (see Fig.29 a). At this time, the first holder 210 can move upward in the optical axis direction together with the first coil 420. In addition, the second holder 310 and the lens can move upward in the optical axis direction together with the first holder 210. Therefore, the distance between the lens and the image sensor can be changed, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0271] When a reverse current is applied to the first coil 420, the first coil 420 may move downward in the optical axis direction due to the electromagnetic interaction between the first coil 420 and the first magnet 410 (see Fig.30 b). At this time, the first holder 210 can be moved downward in the optical axis direction together with the first coil 420. In addition, the second holder 310 and the lens can be moved downward in the optical axis direction together with the first holder 210. Therefore, the distance between the lens and the image sensor can be changed, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0272] Meanwhile, during the movement process of the first coil 420, the first sensor 430 moves together with the first coil 420 and detects the magnetic field strength of the first magnet 410 to detect the movement amount or position of the lens in the optical axis direction. The movement amount or position of the lens in the optical axis direction detected by the first sensor 430 can be used for automatic focusing feedback control.

[0273] Hereinafter, an optical image stabilization (OIS) operation of the lens driving device according to the first embodiment of the present invention will be described with reference to the accompanying drawings.

[0274] Figure 31 to Figure 33 FIG. 1 is a diagram for explaining the shake correction driving of the lens driving device according to the first embodiment of the present invention. Fig.31 is a cross-sectional view illustrating a phenomenon of the moving unit in an initial state in which no current is applied to the second coil and the third coil. Fig.32is a cross-sectional view illustrating a phenomenon that the second moving unit moves in the x-axis direction perpendicular to the optical axis when a current is applied to the second coil. Fig.33 is a cross-sectional view illustrating a phenomenon that the second moving unit moves in the y-axis direction perpendicular to both the optical axis and the x-axis when a current is applied to the third coil.

[0275] like Fig.31 As illustrated in FIG. 5 , the moving unit may be set in an initial position where no current is applied to the second coil 520 and the third coil 620. At this time, the moving unit may be the second moving unit 300.

[0276] When current is applied to the second coil 520, the second coil 520 may move in the x-axis direction perpendicular to the optical axis due to the electromagnetic interaction between the second coil 520 and the second magnet 510 (see Fig.32 a in a). At this time, the second holder 310 can move in the x-axis direction together with the second coil 520. In addition, the lens can move in the x-axis direction together with the second holder 310. In more detail, 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 along the x-axis. In addition, 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 another direction along the x-axis.

[0277] When current is applied to the third coil 620, the third coil 620 can move in the y-axis direction perpendicular to the optical axis due to the electromagnetic interaction between the third coil 620 and the third magnet 610 (see Fig.33 b in b). At this time, the second holder 310 can move in the y-axis direction together with the third coil 620. In addition, the lens can move in the y-axis direction together with the second holder 310. In more detail, 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. In addition, 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 another direction on the y-axis.

[0278] At the same time, the second sensor 530 can detect the movement amount or position of the second coil 520 by detecting the magnetic field strength of the second magnet 510. The movement amount or position detected by the second sensor 530 can be used for shake correction feedback control in the x-axis direction. The third sensor 630 can detect the movement amount or position of the third coil 620 by detecting the magnetic field strength of the third magnet 610. The movement amount or position detected by the third sensor 630 can be used for shake correction feedback control in the y-axis direction.

[0279] Hereinafter, a camera device according to a first embodiment of the present invention will be described with reference to the accompanying drawings.

[0280] Fig.34 is an exploded perspective view of a camera device according to a first embodiment of the present invention.

[0281] The camera device 10A may include a camera module.

[0282] 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 lens 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 screw coupling and / or adhesive. The lens module 20 may move integrally with the holder 210.

[0283] The camera device 10A may include a filter 30. The filter 30 may be used to block light of a specific frequency band passing through the lens module 20 from being incident on the image sensor 60. The filter 30 may be arranged parallel to the xy plane. The filter 30 may be arranged between the lens module 20 and the image sensor 60. The filter 30 may be arranged in the sensor base 40. In a modified embodiment, the filter 30 may be arranged in the base 110. The filter 30 may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor 60.

[0284] The camera device 10A may include a sensor base 40. The sensor base 40 may be disposed between the lens driving device 10 and the printed circuit board 50. The sensor base 40 may include a protrusion 41 in which the filter 30 is disposed. An opening may be formed in a portion of the sensor base 40 in which the filter 30 is disposed so that light passing through the filter 30 may be incident on the image sensor 60. An adhesive member may couple or attach the base 310 of the lens driving device 10 to the sensor base 40. The adhesive member may additionally be used to prevent foreign matter from entering the interior of the lens driving device 10. The adhesive member may include at least one of an epoxy resin, a thermosetting adhesive, and an ultraviolet curing adhesive.

[0285] 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 driving device 10 may be disposed on the printed circuit board 50. The sensor base 40 may be disposed between the printed circuit board 50 and the lens driving device 10. The printed circuit board 50 may be electrically connected to the lens driving device 10. The image sensor 60 may be disposed on the printed circuit board 50. Various circuits, elements, control units, etc. may be disposed on the printed circuit board 50 to convert an image formed on the image sensor 60 into an electrical signal and transmit the electrical signal to an external device.

[0286] The camera device 10A may include an image sensor 60. The image sensor 60 may be a configuration on which light passing through the lens and the filter 30 is incident to form an image. The image sensor 60 may be mounted on a printed circuit board 50. The image sensor 60 may be electrically connected to the printed circuit board 50. For example, the image sensor 60 may be coupled to the printed circuit board 50 by surface mounting technology (SMT). As another example, the image sensor 60 may be coupled to the printed circuit board 50 by flip chip technology. The image sensor 60 may be arranged so that the optical axis of the image sensor 60 is aligned with the optical axis of the lens. That is, the optical axis of the image sensor 60 and the optical axis of the lens may be aligned. The image sensor 60 may convert the light irradiated to the effective image area of ​​the image sensor 60 into an electrical signal. The image sensor 60 may be any one of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID.

[0287] 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 through a circuit pattern provided on the printed circuit board 50. The motion sensor 70 may output rotation speed information due to the motion of the camera device 10A. The motion sensor 70 may include a dual-axis or tri-axis gyro sensor or an angular velocity sensor.

[0288] 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 coil 330 of the lens driving device 10. The control unit 80 may individually control the direction, intensity, amplitude, etc. of the current supplied to the coil 330. The control unit 80 may control the lens driving device 10 to perform an autofocus function and / or a shake correction function. In addition, the control unit 80 may perform autofocus feedback control and / or shake correction feedback control on the lens driving device 10.

[0289] 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.

[0290] Hereinafter, an optical device according to a first embodiment of the present invention will be described with reference to the accompanying drawings.

[0291] Fig.35 is a perspective view of an optical device according to a first embodiment of the present invention; and Fig.36 is a perspective view of an optical device according to a modified embodiment.

[0292] The optical device 1 may include at least one of a mobile phone, a cellular phone, a portable terminal, a mobile terminal, a smart phone, a smart board, a portable smart device, a digital camera, a notebook computer, a digital broadcast terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), and a navigation device. The optical device 1 may include any device for taking a video or a picture.

[0293] The optical device 1 may include a body 20. The optical device 1 may include a camera device 10A. The camera device 10A may be disposed in the body 20. The camera device 10A may capture an object. The optical device 1 may include a display. The display may be disposed in the body 20. The display may output one or more of an image and a video captured by the camera device 10A. The display may be disposed on a first surface of the body 20. The camera device 10A may be disposed on one or more of the first surface of the body 20 and a second surface opposite to the first surface. Fig. 22 As shown in FIG. 1 , in the camera device 10A, a triple camera may be arranged in a vertical direction. Fig.23 As illustrated in , in the camera device 10A-1, a triple camera can be arranged in the horizontal direction.

[0294] Hereinafter, a configuration of a lens driving device according to a second embodiment of the present invention is described with reference to the drawings.

[0295] Fig.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 a lens driving device according to a second embodiment of the present invention; Fig.39 It is along Fig.38 A cross-sectional view taken along line AA; Fig.40 It is along Fig.38 A cross-sectional view taken along line BB; Fig.41 It is along Fig.38 A cross-sectional view taken along line CC; Fig.42 is a cross-sectional view of a lens driving device according to a second embodiment of the present invention taken from above perpendicular to the optical axis; Fig.43 is an exploded perspective view of a lens driving device according to a second embodiment of the present invention; Fig.44is a perspective view of a lens driving device according to a second embodiment of the present invention, wherein a cover is removed; Fig.45 It's a picture. Fig.44 an enlarged view of a portion of; Fig.46a Observed from the other direction Fig.44 Stereoscopic image of Fig.46b is a perspective view illustrating a state in which a metal member of the AF moving unit is omitted in FIG. 46 ; Fig.47 is a perspective view illustrating a fixing unit and related components of a lens driving device according to a second embodiment of the present invention; Fig.48 is a perspective view illustrating a moving unit and related components of a lens driving device according to a second embodiment of the present invention; Fig.49 Observed from the front Fig.48 A front view of Fig.50 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; Fig.51 Observed from different directions Fig.48 Stereoscopic image of Fig.52 yes Fig.51 A perspective view of the invention with the cover removed; Fig.53 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, as viewed from below; Fig.54 Observed from different directions Fig.53 Bottom stereogram of Fig.55 This is an enlarged view Fig.54 an enlarged view of a portion of; Fig.56 is a perspective view illustrating an OIS moving unit and related components of a lens driving device according to a second embodiment of the present invention; Fig.57a This is an enlarged view Fig.56 an enlarged view of a portion of; Fig.57b is from Fig.57a Cross-sectional view of AA observation; Fig.58a is a cross-sectional view illustrating a pressurizing structure of an OIS guide ball of a lens driving device according to a second embodiment of the present invention; Figure 58b is a cross-sectional view illustrating a coupling structure composed of an elastic member and a wire material of a lens driving device according to a second embodiment of the present invention; Fig.59 Observed from different directions Fig.56 Bottom stereogram of Fig.60 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; and Fig.61 1 is a perspective view illustrating an elastic member and a wire material of a lens driving device according to a second embodiment of the present invention.

[0296] 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.

[0297] The lens driving device 1010 may include a fixing unit 1100. The fixing unit 1100 may be a relatively fixed part when the moving unit moves. The moving unit may move relative to the fixing unit 1100.

[0298] The lens driving device 1010 may include a base 1110. The fixing unit 1100 may include a 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 coupled 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 lower plate of the base 1110. The AF holder 1210 and the OIS holder 1310 may be disposed inside the base 1110. The AF holder 1210 and the OIS holder 1310 may be disposed inside a side plate of the base 1110.

[0299] In the second embodiment of the present invention, all magnets of the AF magnet 1410, the OIS-x magnet 1510, and the OIS-y magnet 1610 may be disposed in the base 1110. All magnets of the AF magnet 1410, the OIS-x magnet 1510, and the OIS-y magnet 1610 may be disposed in the fixing unit 1100. That is, in the autofocus operation, all magnets of the AF magnet 1410, the OIS-x magnet 1510, and the OIS-y magnet 1610 may be maintained in a fixed state. In addition, in the shake correction operation, all magnets of the AF magnet 1410, the OIS-x magnet 1510, and the OIS-y magnet 1610 may be maintained in a fixed state. In the autofocus operation, the AF magnet 1410 is fixed and the AF coil 1420 may move. In the image stabilization operation, the OIS-x magnet 1510 and the OIS-y magnet 1610 are fixed and the OIS-x coil 1520 and the OIS-y coil 1620 may move.

[0300] The base 1110 may include a lower plate. The base 1110 may include a side plate. The side plate may be a "side portion". The side plate of the base 1110 may extend from the upper surface of the lower plate.

[0301] The side panels of the base 1110 may include a plurality of side panels. The side panels of the base 1110 may include four side panels. However, one or more of the four side panels of the base 1110 may be omitted. The side panels of the base 1110 may include first to fourth side panels 1111, 1112, 1113, 1114. The base 1110 may include a first side panel 1111 and a second side panel 1113 disposed opposite to each other, and a third side panel 1112 and a fourth side panel 1114 disposed opposite to each other.

[0302] The side portion of the base 1110 may include a plurality of side portions. The side portion of the base 1110 may include four side portions. However, one or more of the four side portions of the base 1110 may be omitted. The side portion of the base 1110 may include a first side portion to a fourth side portion. The base 1110 may include a first side portion and a second side portion disposed opposite to each other, and a third side portion and a fourth side portion disposed opposite to each other.

[0303] The AF magnet 1410 may be disposed on the first side plate 1111 of the base 1110. The OIS-x magnet 1510 may be disposed in the second side plate 1113 of the base 1110. The OIS-y magnet 1610 may be disposed in the third side plate 1112 of the base 1110.

[0304] The first side plate 1111 of the base 1110 may include a groove 1111a. The groove 1111a may be an "AF guide ball accommodating groove". The AF guide ball 1810 may be disposed in the groove 1111a. The groove 1111a may 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 embodiment, both the first groove and the second groove may contact the AF guide ball 1810 at two points.

[0305] The second side plate 1113 of the base 1110 may include a protruding portion. The protruding portion may protrude outward. The extension portion 1722 of the outer substrate 1720 may be disposed above and below the protruding portion. A groove may be formed in the protruding portion so as not to interfere even when the extension portion 1722 of the outer substrate 1720 moves.

[0306] The base 1110 may include a step portion 1115. The step portion 1115 may be formed at a lower portion of an outer surface of the base 1110. The step portion 1115 may protrude from the outer surface of the base 1110. The side plate 1122 of the cover 1120 may be disposed on the step portion 1115 of the base 1110.

[0307] The lens driving device 1010 may include a cover 1120. The fixing unit 1100 may include a cover 1120. The cover 1120 may be disposed in 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 accommodate an AF holder 1210 therein. The cover 1120 may accommodate an OIS holder 1310 therein. The cover 1120 may be a shielding member. The cover 1120 may be a shielding cover.

[0308] The cover 1120 may include an upper plate 1141. The upper plate 1141 may be disposed on the moving unit. The upward movement of the moving unit may be restricted due to the contact of the moving unit with the upper plate 1141. The upper plate 1141 may include a hole through which light passes.

[0309] The cover 1120 may include a side panel 1142. The side panel 1142 may extend from the upper panel 1141. The side panel 1142 may be disposed in the base 1110. The side panel 1142 may be disposed in a step portion protruding from a lower portion of an outer surface of the base 1110. The side panel 1142 may include a plurality of side panels. The side panel 1142 may include four side panels. The side panel 1142 may include a first side panel and a second side panel disposed opposite to each other, and a third side panel and a fourth side panel disposed opposite to each other.

[0310] The lens driving device 1010 may include a moving unit. The moving unit may be disposed in the fixed unit 1100. The moving unit may be disposed inside the fixed unit 1100. The moving unit may be disposed on the fixed unit 1100. The moving unit may be movably disposed in the fixed unit 1100. The moving unit may be moved relative to the fixed unit 1100 by the driving unit. The moving unit may move during AF driving. The moving unit may move during OIS driving. The moving unit may be coupled with a lens.

[0311] 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 inside 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 movably disposed in the fixed unit 1100. The AF moving unit 1200 may be moved in the optical axis direction relative to the fixed unit 1100 by the AF driving unit 1400. The AF moving unit 1200 may move during AF driving.

[0312] The lens driving device 1010 may include an AF holder 1210. The AF moving unit 1200 may include an AF holder 1210. The AF holder 1210 may be an "AF carrier". The AF holder 1210 may be disposed in the base 1110. The AF holder 1210 may be disposed on the base 1110. The AF holder 1210 may be disposed inside 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 in a movably manner in the optical axis direction.

[0313] The AF holder 1210 may include a protrusion. The protrusion may be coupled to the lower elastic member 1910. The lower elastic member 1910 may include a hole coupled to the protrusion of the AF holder 1210. In a modified embodiment, the AF holder 1210 may include a groove for accommodating an adhesive instead of the protrusion. In this case, the lower elastic member 1910 may include a hole provided 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.

[0314] 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 region coupled to the first protrusion 1211 and a second region 1212 coupled to the first protrusion 1212. The wire 1930 may include a first wire 1931 disposed at a first corner region of the fixing unit 1100. The coupling portion 1912 of the lower elastic member 1910 may include a first coupling portion coupled 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 connecting the outer portion 1911 of the lower elastic member 1910 and the first coupling portion of the lower elastic member 1910. The connection portion 1913 of the lower elastic member 1910 may include a first connection portion 1913-1 connecting the first region of the outer portion 1911 and the first coupling portion, and a second connection portion 1913-2 connecting the second region of the outer portion 1911 and the first coupling portion. That is, the connection portion 1913 of the lower elastic member 1910 may be provided with two connection portions to connect one outer portion 1911 and one coupling portion 1912.

[0315] When viewed from below, the first connection portion 1913 - 1 and the second connection portion 1913 - 2 of the lower elastic member 1910 may be symmetrical about an imaginary straight line connecting the optical axis and the first corner region of the fixing unit 1100 .

[0316] The wire 1930 may include a second wire 1933 disposed in a second corner region of the fixing unit 1100. The coupling portion 1912 of the lower elastic member 1910 may include a second coupling portion coupled to the second wire 1933. The wire 1930 may include a third wire 1932 disposed in a third corner region of the fixing unit 1100. The coupling portion 1912 of the lower elastic member 1910 may include a third coupling portion coupled to the third wire 1932. The wire 1930 may include a fourth wire 1934 disposed in a fourth corner region of the fixing unit 1100. The coupling portion 1912 of the lower elastic member 1910 may include a fourth coupling portion coupled to the fourth wire 1934. The first corner region of the fixing unit 1100 may be disposed diagonally opposite to the second corner region, and the third corner region may be disposed diagonally opposite to the fourth corner region.

[0317] The AF holder 1210 may include a protrusion 1213. The protrusion 1213 may be formed on an outer surface of the AF holder 1210. The protrusion 1213 may protrude outward from the AF holder 1210. The extension 1722 of the outer substrate 1720 may be provided on the upper and lower surfaces of the protrusion 1213.

[0318] The AF holder 1210 may include a groove 1214. The groove 1214 may be an "AF guide ball accommodating 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 embodiment, both the first groove and the second groove may contact the AF guide ball 1810 at two points.

[0319] 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 provided on the lower surface of the protrusion 1215a. The protrusion 1215a may include a plurality of protrusions. The protrusion 1215a may include four protrusions.

[0320] The AF holder 1210 may include a groove 1215. The groove 1215 may be an "OIS guide ball accommodating 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 on the lower surface of the protrusion 1215a in a concave manner. The 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.

[0321] The AF holder 1210 may include a metal member 1216. The metal member 1216 may be insert-molded into the AF holder 1210. At least a portion of the metal member 1216 may be disposed on an upper surface of the AF holder 1210. The metal member 1216 may be disposed to enhance the strength of the AF holder 1210.

[0322] The AF holder 1210 may include a groove 1217. The groove 1217 may be a "metal member receiving groove". The groove 1217 may be formed on the upper surface of the AF holder 1210. The groove 1217 may be formed on the upper surface of the AF holder 1210 in a concave manner. 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.

[0323] The lens driving device 1010 may include a cover 1220. The AF moving unit 1200 may include a cover 1220. The cover 1220 may be coupled to the AF holder 1210. The cover 1220 may be coupled to the lower surface of the AF holder 1210. The cover 1220 may be coupled to the AF holder 1210 from the lower side. The cover 1220 may include a hook 1221. The hook 1221 of the cover 1220 may be coupled to the AF holder 1210. The hook 1221 of the cover 1220 may protrude upward and be coupled to the side surface of the AF holder 1210.

[0324] 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 inside the fixed unit 1100. The OIS moving unit 1300 may be disposed in the fixed unit 1100. The OIS moving unit 1300 may be disposed inside the AF moving unit 1200. The OIS moving unit 1300 may be disposed in a movable manner. The OIS moving unit 1300 may be moved in an x-axis direction perpendicular to the optical axis relative to the fixed unit 1100 and the AF moving unit 1200 by the OIS-x driving unit 1500. The OIS moving unit 1300 may be moved in a y-axis direction perpendicular to the optical axis relative to the fixed unit 1100 and the AF moving unit 1200 by the OIS-y driving unit 1600. The OIS moving unit 1300 may move during OIS driving.

[0325] 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 inside the AF holder 1210. The OIS holder 1310 may be disposed inside the base 1110. The OIS holder 1310 may be disposed on the base 1110. The OIS holder 1310 may be disposed inside the cover 1120. The OIS holder 1310 may be disposed in a movably manner in a direction perpendicular to the optical axis.

[0326] The OIS holder 1310 may include an outer surface. The OIS holder 1310 may include a plurality of side surfaces. The OIS holder 1310 may include a first side surface and a second side surface disposed opposite to each other, and a third side surface and a fourth side surface disposed opposite to 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.

[0327] 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 on the upper surface of the OIS holder 1310 in a concave manner. The groove 1311 may be provided at a position corresponding to the upper elastic member 1920 to prevent interference between the OIS holder 1310 and the upper elastic member 1920.

[0328] The OIS holder 1310 may include a groove 1312. The groove 1312 may be an "OIS guide ball accommodating groove". The OIS guide ball 1820 may be disposed in the groove 1312. The groove 1312 may be in direct contact with the OIS guide ball 1820. The groove 1312 may be disposed in a direction perpendicular to the optical axis. The groove 1312 may be recessed in the optical axis direction. The groove 1312 may include a plurality of grooves. The groove 1312 may include four grooves. The groove 1312 may be in contact with the OIS guide ball 1820 at one point. Alternatively, the groove 1312 may be in contact with the OIS guide ball 1820 at two points. The number of contact points between the OIS holder 1310 and the OIS guide ball 1820 may vary according to the movement of the OIS guide ball 1820. The groove 1312 may be formed in the groove 1311. The groove 1312 may be additionally recessed from the groove 1311.

[0329] One of the groove 1311 and the groove 1312 of the OIS holder 1310 is referred to as a “first groove”, and the other may be referred to as a “second groove”.

[0330] The OIS holder 1310 may include a lateral stopper. The lateral stopper may limit the lateral travel of the OIS holder 1310. That is, when the OIS holder 1310 moves to the maximum value, the lateral stopper of the lower surface OIS holder 1310 may contact at least one of the AF holder 1210 and the base 1110. The lateral stopper may be formed on the outer surface of the OIS holder 1310. The lateral stopper may protrude outward from the side surface of the OIS holder 1310.

[0331] The OIS holder 1310 may include a protrusion. The protrusion may be coupled to the upper elastic member 1920. The upper elastic member 1920 may include a hole coupled to the protrusion of the OIS holder 1310. In a modified embodiment, the OIS holder 1310 may include a groove for accommodating an adhesive instead of the protrusion. In this case, the upper elastic member 1920 may include a hole provided 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.

[0332] 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 coupled to the first protrusion 1314 and a second area 1212 coupled to the second protrusion 1315. The wire 1930 may include a first wire 1931 disposed at a first corner area of ​​the fixing unit 1100. The coupling portion 1922 of the upper elastic member 1920 may include a first coupling portion coupled 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 connecting the inner portion 1921 of the upper elastic member 1920 and the first coupling portion of the upper elastic member 1920. The connection portion 1923 of the upper elastic member 1920 may include a first connection portion 1923-1 connecting the first area of ​​the inner portion 1921 and the first coupling portion, and a second connection portion 1923-2 connecting the second area of ​​the inner portion 1921 and the first coupling portion. That is, the connection portion 1923 of the upper elastic member 1920 may be provided with two connection portions to connect one inner portion 1921 and one coupling portion 1922.

[0333] When viewed from below, the first connection portion 1923 - 1 and the second connection portion 1923 - 2 of the upper elastic member 1920 may be symmetrical about an imaginary straight line connecting the optical axis and the first corner region of the fixing unit 1100 .

[0334] The coupling portion 1922 of the upper elastic member 1920 may include a second coupling portion coupled to the second wire 1933. The coupling portion 1922 of the upper elastic member 1920 may include a third coupling portion coupled to the third wire 1932. The coupling portion 1922 of the upper elastic member 1920 may include a fourth coupling portion coupled to the fourth wire 1934.

[0335] The lens driving device 1010 may include a driving unit. The driving unit may move the moving unit relative to the fixing 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.

[0336] 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 by electromagnetic force. The AF driving unit 1400 may include a coil and a magnet.

[0337] In the second embodiment of the present invention, the AF holder 1210 and the OIS holder 1310 can move in the optical axis direction through 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.

[0338] 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 in the side plate 1122 of the cover 1120. The AF magnet 1410 may be disposed on the outer surface of the base 1110. The AF magnet 1410 may be disposed on the inner side 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 attached to the base 1110 with an adhesive. The AF magnet 1410 may be disposed inside the cover 1120. The AF magnet 1410 may interact with the AF coil 1420. The AF magnet 1410 may 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 may face the AF coil 1420. The AF magnet 1410 and the AF coil 1420 may face each other. The AF magnet 1410 may overlap with the AF coil 1420 in a direction perpendicular to the optical axis.

[0339] The AF magnet 1410 may be a quadrupole magnet. The AF magnet 1410 may include a quadrupole magnetized magnet. The AF magnet 1410 may include a first magnet portion having an N pole and an S pole and a second magnet portion having an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a vertical direction. The first magnet portion and the second magnet portion may be spaced apart from each other in the vertical direction, and a neutral portion may be provided between the first magnet portion and the second magnet portion.

[0340] The lens driving device 1010 may include an AF coil 1420. The AF driving unit 1400 may include the 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 with the AF magnet 1410 in a direction perpendicular to the optical axis. The AF coil 1420 may be disposed in the inner substrate 1710. The AF coil 1420 may be disposed in the first portion 1711 of the inner substrate 1710. The AF coil 1420 may be disposed in the AF holder 1210. The AF coil 1420 may be disposed in the AF moving unit 1200.

[0341] In a modified embodiment, the AF magnet 1410 may be provided in the AF moving unit 1200 and the AF coil 1420 may be provided in the fixing unit 1100. The AF magnet 1410 may be provided in the AF holder 1210. The AF coil 1420 may be provided in the base 1110 through a substrate.

[0342] 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 in the substrate 1740. The AF sensor 1430 may be disposed in the first portion 1711 of the substrate 1740. The AF sensor 1430 may detect the AF magnet 1410. The AF sensor 1430 may detect the movement of the AF magnet 1410. The movement amount or position of the AF magnet 1410 detected by the AF sensor 1430 may be used for feedback of automatic focus driving.

[0343] The AF sensor 1430 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 1420. The driver IC may supply current to the AF coil 1420.

[0344] The AF sensor 1430 may be disposed inside the AF coil 1420. The AF sensor 1430 may overlap with a neutral portion of the AF magnet 1410 in a direction perpendicular to the optical axis. In a modified embodiment, the AF sensor 1430 may be disposed outside the AF coil 1420.

[0345] The lens driving device 1010 may include an OIS-x driving unit 1500. The OIS-x driving unit 1500 may enable the OIS moving unit 1300 to move in the x-axis direction perpendicular to the optical axis direction. The OIS-x driving unit 1500 may enable the OIS holder 1310 to move in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit 1500 may use an 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.

[0346] In the second embodiment of the present invention, the OIS holder 1310 may move in the x-axis direction perpendicular to the optical axis direction through the interaction between the OIS-x coil 1520 and the OIS-x magnet 1510. The OIS-x coil 1520 and the OIS holder 1310 may move in the x-axis direction as a unit.

[0347] 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 fixing unit 1100. The OIS-x magnet 1510 may be disposed in the base 1110. The OIS-x magnet 1510 may be disposed on an outer surface of the base 1110. The OIS-x magnet 1510 may be disposed on an 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 attached to the base 1110 with an adhesive. The OIS-x magnet 1510 may be disposed inside the cover 1120. The OIS-x magnet 1510 may interact with the OIS-x coil 1520. The OIS-x magnet 1510 may 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 may face the OIS-x coil 1520. The OIS-x magnet 1510 and the OIS-x coil 1520 may face each other. The OIS-x magnet 1510 may overlap with the OIS-x coil 1520 in a direction perpendicular to the optical axis.

[0348] 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 an N pole and an S pole. The inner surface of the OIS-x magnet 1510 is an N pole and the outer surface may be an S pole.

[0349] The lens driving device 1010 may include an OIS-x coil 1520. The OIS-x driving unit 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 and the OIS-x magnet 1510 may face each other. 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 with the OIS-x magnet 1510 in a direction perpendicular to the optical axis. The OIS-x coil 1520 may be disposed on the inner substrate 1710. The OIS-x coil 1520 may be disposed in the second portion 1713 of the inner substrate 1710. The OIS-x coil 1520 may be disposed in the OIS holder 1310. The OIS-x coil 1520 may be disposed in the OIS moving unit 1300.

[0350] 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 in the inner substrate 1710. The OIS-x sensor 1530 may be disposed in 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 detect the OIS-x magnet 1510. The OIS-x sensor 1530 may detect the magnetic force of the OIS-x magnet 1510. The OIS-x sensor 1530 may be disposed in the OIS-x coil 1520. The OIS-x sensor 1530 may overlap with 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 may detect movement of the OIS-x magnet 1510. The movement amount or position of the OIS-x magnet 1510 detected by the OIS-x sensor 1530 may be used for feedback of shake correction driving in the x-axis direction.

[0351] 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 a y-axis direction perpendicular to the optical axis direction and the x-axis direction. The OIS-y driving unit 1600 may move the OIS holder 1310 in a y-axis direction perpendicular to both the optical axis and the x-axis direction. The OIS-y driving unit 1600 may move the OIS holder 1310 in a y-axis direction perpendicular to both the optical axis and the x-axis direction by electromagnetic force. The OIS-y driving unit 1600 may include a coil and a magnet.

[0352] In the second embodiment of the present invention, the OIS holder 1310 can move in the y-axis direction perpendicular to both the optical axis direction and the x-axis direction through 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 in the y-axis direction as a unit.

[0353] 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 in the fixing unit 1100. The OIS-y magnet 1610 may be disposed in the base 1110. The OIS-y magnet 1610 may be disposed on an outer surface of the base 1110. The OIS-y magnet 1610 may be disposed on an 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 attached to the base 1110 with an adhesive. The OIS-y magnet 1610 may be disposed inside the cover 1120. The OIS-y magnet 1610 may interact with the OIS-y coil 1620. The OIS-y magnet 1610 may 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 may face the OIS-y coil 1620. The OIS-y magnet 1610 and the OIS-y coil 1620 may face each other. The OIS-y magnet 1610 may overlap with the OIS-y coil 1620 in a direction perpendicular to the optical axis.

[0354] 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 an N pole and an S pole. The inner surface of the OIS-y magnet 1610 may be an N pole and the outer surface may be an S pole.

[0355] 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 relative to the optical axis. The OIS-y coil 1620 may move in the y-axis direction 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 and the OIS-y magnet 1610 may face each other. The OIS-y coil 1620 may be disposed at a position corresponding to the OIS-y magnet 1610. The OIS-y coil 1620 may overlap with the OIS-y magnet 1610 in a direction perpendicular to the optical axis. The OIS-y coil 1620 may be disposed in the inner substrate 1710. The OIS-y coil 1620 may be disposed in the third portion 1712 of the inner substrate 1710. The OIS-y coil 1620 may be disposed in the OIS holder 1310. The OIS-y coil 1620 may be disposed in the OIS moving unit 1300.

[0356] The lens driving device 1010 may include an OIS-y sensor 1630. The OIS-y driving unit 1600 may include an OIS-y sensor 1630. The OIS-y sensor 1630 may be disposed in the inner substrate 1710. The OIS-y sensor 1630 may be disposed in 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 detect the OIS-y magnet 1610. The OIS-y sensor 1630 may detect the magnetic force of the OIS-y magnet 1610. The OIS-y sensor 1630 may be disposed in the OIS-y coil 1620. The OIS-y sensor 1630 may overlap with 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 may detect movement of the OIS-y magnet 1610. The movement amount or position of the OIS-y magnet 1610 detected by the OIS-y sensor 1630 may be used for feedback of shake correction driving in the y-axis direction.

[0357] 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 formed to be flexible. The substrate may be a circuit board. The substrate may be a printed circuit board.

[0358] The lens driving device 1010 may include an inner substrate 1710. The inner substrate 1710 may be electrically connected to the coils 1420, 1520, 1620. The inner substrate 1710 may be electrically connected to the sensors 1430, 1530, 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 in a manner 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 may include an elastic member.

[0359] The inner substrate 1710 may include a first portion 1711. The first portion 1711 may be provided in the AF moving unit 1200. The first portion 1711 may be provided in the AF holder 1210. The AF coil 1420 may be provided in the first portion 1711 of the inner substrate 1710. The AF sensor 1430 may be provided in the first portion 1711 of the inner substrate 1710. A yoke 1830 may be provided in the first portion 1711 of the inner substrate 1710.

[0360] The inner substrate 1710 may include a second portion 1713. The second portion 1713 may be disposed in the OIS holder 1310. The second portion 1713 may be disposed on a second side surface of the OIS holder 1310. The OIS-x coil 1520 may be disposed in the second portion 1713 of the inner substrate 1710. The OIS-x sensor 1530 may be disposed in the second portion 1713 of the inner substrate 1710.

[0361] The inner substrate 1710 may include a third portion 1712. The third portion 1712 may be disposed in the OIS holder 1310. The third portion 1712 may be disposed on a third side surface of the OIS holder 1310. The OIS-y coil 1620 may be disposed in the third portion 1712 of the inner substrate 1710. The OIS-y sensor 1630 may be disposed in the third portion 1712 of the inner substrate 1710.

[0362] 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 surface of the OIS holder 1310 and the AF holder 1210.

[0363] However, in the “first to fourth side surfaces” of the OIS holder 1310 described in this specification, “first to fourth” are only used to distinguish the side surfaces from each other, and can be referred to in different ways as needed. For example, the “second side surface” is referred to as the “first side surface”, and the “third side surface” can be referred to as the “second side surface”.

[0364] 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 connected to the coils 1420, 1520, 1620. The terminal 1714a may be electrically connected to the sensors 1430, 1530, 1630.

[0365] 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 to penetrate the fourth portion 1714 of the inner substrate 1710. The hole 1714b may be provided at a position corresponding to the lateral stopper of the OIS holder 1310. Due to the hole 1714b, the inner substrate 1710 may not interfere with the lateral stopper of the OIS holder 1310.

[0366] The lens driving device 1010 may include an external substrate 1720. The external substrate 1720 may be disposed in the base 1110. The external substrate 1720 may be electrically connected to the coils 1420, 1520, 1620. The external substrate 1720 may be electrically connected to the sensors 1430, 1530, 1630. The external substrate 1720 may connect the AF holder 1210 and the base 1110. The external substrate 1720 may elastically connect the AF holder 1210 and the base 1110. The external substrate 1720 may support the AF holder 1210 in a manner movable relative to the base 1110. The external substrate 1720 may guide the AF holder 1210 to move relative to the base 1110 in the optical axis direction. The external substrate 1720 may include a flexible substrate. The external substrate 1720 may include a flexible printed circuit board (FPCB). The external substrate 1720 may include an elastic portion. The external substrate 1720 may include an elastic member.

[0367] The outer substrate 1720 may include a body portion 1721. The body portion 1721 may be disposed in the fixing unit 1100. The body portion 1721 may be disposed in the base 1110. The body portion 1721 may be formed to surround the side surface of the base 1110. The body portion 1721 may be disposed on three side surfaces of the base 1110. The body portion 1721 may include two terminal portions. The two terminal portions may be disposed on opposite sides relative to the optical axis. The terminal portion may include a terminal 1721a.

[0368] The outer substrate 1720 may include a terminal 1721a. The body portion 1721 of the outer substrate 1720 may include a terminal 1721a. The terminal 1721a may be electrically connected to the terminal 1722a. The terminal 1721a may be provided at the lower end portion of the base 1110. The terminal 1721a may be coupled to the printed circuit board 1050. The terminal 1721a may be coupled to the terminal of the printed circuit board 1050 with solder. The terminal 1721a may be coupled to the terminal of the printed circuit board 1050 with a conductive member. The terminal 1721a may be connected to the terminal of the printed circuit board 1050. The terminal 1721a may be electrically connected to the terminal of the printed circuit board 1050.

[0369] The outer substrate 1720 may include an extension portion 1722. The extension portion 1722 may be a "leg portion". The extension portion 1722 may extend from the body portion 1721. At least a portion of the extension portion 1722 may move together with the AF moving unit 1200. At least a portion of the extension portion 1722 may move together with the AF holder 1210. The extension portion may extend from the body portion 1721. The extension portion 1722 may include a plurality of leg portions. The extension portion 1722 may include a first leg portion and a second leg portion. The second leg portion may be disposed below the first leg portion.

[0370] The outer substrate 1720 may include a terminal 1722a. The extension portion 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 with solder. The terminal 1722a may be coupled to the terminal 1714a of the inner substrate 1710 with a conductive member. The terminal 1722a may be connected to the terminal 1714a of the inner substrate 1710. The terminal 1722a may be electrically connected to the terminal 1714a of the inner substrate 1710.

[0371] 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 unit relative to the fixing unit 1100 in a specific direction.

[0372] The lens driving device 1010 may include an AF guide ball 1810. The AF guide ball 1810 may guide the 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 along the x-axis direction. The AF guide ball 1810 may be disposed in a groove 1111a of the base 1110. The AF guide ball 1810 may be disposed in a first groove 1214 of the AF holder 1210. The AF guide ball 1810 may include a first-first ball contacting the base 1110 and the AF holder 1210 at four points and a first-second ball contacting the base 1110 and the AF holder 1210 at three points. The AF guide ball 1810 may have a spherical shape. The AF guide ball 1810 may be formed of metal. Grease may be applied to the surface of the AF guide ball 1810.

[0373] The AF guide ball 1810 may include a plurality of balls. The AF guide ball 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.

[0374] The lens driving device 1010 may include an OIS guide ball 1820. The OIS guide ball 1820 may 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 along the optical axis direction. The OIS guide ball 1820 may overlap with the AF moving unit 1200 and the OIS moving unit 1300 in the optical axis direction. The OIS guide ball 1820 may be disposed between the AF moving unit 1200 and the OIS moving unit 1300 along the optical axis direction.

[0375] 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 pressing force of the elastic member.

[0376] The OIS guide ball 1820 can guide the OIS holder 1310 to move in the x-axis direction and the y-axis direction 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 direction and the y-axis direction. In other words, the OIS guide ball 1820 can guide the movement in both the x-axis direction and the y-axis direction. For reference, in the second embodiment of the present invention, the ball guiding the x-axis direction and the ball guiding the y-axis direction are arranged as one body, and the size of the lens drive device 1010 can be minimized when compared with the comparative example in which the ball guiding the x-axis direction and the ball guiding the y-axis direction are separately arranged. In particular, the height of the lens drive device 1010 in the optical axis direction can be reduced. In this way, the height protruding from the smartphone, that is, the shoulder height, can be minimized. The OIS guide ball 1820 may include a plurality of balls. The OIS guide ball 1820 may include four balls.

[0377] When viewed from above, the OIS guide ball 1820 may be disposed inside a space formed by the inner portion 1921, the coupling portion 1922, and the connecting portion 1923 of the upper elastic member 1920. When viewed from above, the inner portion 1921, the coupling portion 1922, and the connecting portion 1923 of the upper elastic member 1920 may form a closed curve. At this time, the OIS guide ball 1820 may be disposed inside a space within the closed curve formed by the inner portion 1921, the coupling portion 1922, and the connecting portion 1923 of the upper elastic member 1920.

[0378] The lens driving device 1010 may include a yoke 1830. The yoke 1830 may be disposed in 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 AF guide ball 1810 may be pressed between the base 1110 and the AF retainer 1210 by the attractive force between the yoke 1830 and the AF magnet 1410. That is, the contact state of the AF guide ball 1810 with the base 1110 and the AF retainer 1210 may be maintained by the attractive force between the yoke 1830 and the AF magnet 1410.

[0379] The lens driving device 1010 may include an elastic member. The elastic member may be formed to pressurize 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 formed of metal.

[0380] 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 in the AF holder 1210. The lower elastic member 1910 may be disposed in the lower portion of 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 body portion 1721. The lower elastic member 1910 may be coupled to the lower surface of the body portion 1721. The lower elastic member 1910 may be disposed perpendicular to the optical axis.

[0381] The lower elastic member 1910 may include a plurality of elastic units spaced apart from each other. The lower elastic member 1910 may include first to fourth elastic units corresponding to the first to fourth wires 1931, 1932, 1933, 1934. The first to fourth elastic units may be spaced apart from each other.

[0382] The lower elastic member 1910 may include an outer portion 1911. The outer portion 1911 may be coupled to the AF moving unit 1200. The lower elastic member 1910 may include a coupling portion 1912. The coupling portion 1912 may be coupled 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 coupling portion 1912. The coupling portion 1912 of the lower elastic member 1910 may be disposed lower than the outer portion 1911 of the lower elastic member 1910.

[0383] Hereinafter, one of the outer portion 1911, the coupling portion 1912, and the connecting portion 1913 of the lower elastic member 1910 may be referred to as a "first portion", another may be referred to as a "second portion", and still another may be referred to as a "third portion". Hereinafter, one of the outer portion 1911, the coupling portion 1912, and the connecting portion 1913 of the lower elastic member 1910 may be referred to as a "first region", another may be referred to as a "second region", and still another may be referred to as a "third region".

[0384] 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 upper portion of the OIS holder 1310. The upper elastic member 1920 may be disposed above 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 integrally.

[0385] The upper elastic member 1920 may include an inner portion 1921. The inner portion 1921 may be coupled to the OIS moving unit 1300. The upper elastic member 1920 may include a coupling portion 1922. The coupling portion 1922 may be coupled 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 coupling portion 1922. The coupling portion 1922 of the upper elastic member 1920 may be disposed higher than the inner portion 1921 of the upper elastic member 1920.

[0386] Hereinafter, one of the inner portion 1921, the coupling portion 1922, and the connecting portion 1923 of the upper elastic member 1920 may be referred to as a "first portion", another may be referred to as a "second portion", and still another may be referred to as a "third portion". Hereinafter, one of the inner portion 1921, the coupling portion 1922, and the connecting portion 1923 of the upper elastic member 1920 may be referred to as a "first region", another may be referred to as a "second region", and still another may be referred to as a "third region".

[0387] The lower elastic member 1910 may connect the first region of the wire 1930 and the AF moving unit 1200. The upper elastic member 1920 may connect the second region of the wire 1930 and the OIS moving unit 1300. The second region of the wire 1930 may be arranged higher than the first region. That is, the first region of the wire 1930 may be arranged lower than the second region.

[0388] like Fig.58a and Figure 58bAs shown in , in the optical axis direction, the distance between the first area a and the second area d of the wire 1930 can be longer than the distance between the outer part 1911, b of the lower elastic member 1910 and the inner part 1921, c of the upper elastic member 1920. The first area a in the wire 1930 can be arranged to be lower than the outer part 1911, b of the lower elastic member 1910. The first gap ga can be formed between the first area a in the wire 1930 and the outer part 1911, b of the lower elastic member 1910 along the optical axis direction. The second area d of the wire 1930 can be arranged to be higher than the inner part 1921, c of the upper elastic member 1920. The second gap gb can be formed between the second area d of the wire 1930 and the inner part 1921, c of the upper elastic member 1920 along the optical axis direction.

[0389] Through this structure, the OIS guide ball 1820 can be pressed between the AF moving unit 1200 and the OIS moving 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 can 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.

[0390] In a modified embodiment, in the optical axis direction, the distance between the first region a and the second region d in the wire 1930 may be equal to the distance between the outer portion 1911 , b of the lower elastic member 1910 and the inner portion 1921 , c of the upper elastic member 1920 .

[0391] In a modified embodiment, the first region a in the wire 1930 may be disposed at the same height as the outer portion 1911, b of the lower elastic member 1910. Alternatively, the second region d in the wire 1930 may be disposed at the same height as the inner portion 1921, c of the upper elastic member 1920.

[0392] The lens driving device 1010 may include a wire 1930. The wire 1930 may be a "side portion 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.

[0393] 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, 1934. The wire 1930 may include first to fourth wires 1931, 1932, 1933, 1934 respectively disposed in the first to fourth corner regions of the fixing unit 1100.

[0394] Hereinafter, automatic focus AF driving of a lens driving device according to a second embodiment of the present invention will be described with reference to the accompanying drawings.

[0395] Figure 62 to Figure 64 FIG. 1 is a schematic diagram for explaining the automatic focus driving of the lens driving device according to the second embodiment of the present invention. Fig.62 is a cross-sectional view illustrating a phenomenon of the moving unit in an initial state in which no current is applied to the AF coil. Fig.63 is a cross-sectional view illustrating a phenomenon in which the moving unit moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.64 is a cross-sectional view illustrating a phenomenon in which the moving unit moves downward in the optical axis direction when a reverse current is applied to the AF coil.

[0396] In an initial position where no current is applied to the AF coil 1420, the moving unit may be disposed at a position spaced apart from both the upper plate 1121 of the cover 1120 and the base 1110. At this time, the moving unit may be the AF moving unit 1200. In addition, the moving unit may include the AF moving unit 1200 and the OIS moving unit 1300.

[0397] When a forward current is applied to the AF coil 1420, the AF coil 1420 may move upward in the optical axis direction due to electromagnetic interaction between the AF coil 1420 and the AF magnet 1410 (see Fig.63 A). At this time, the AF holder 1210 can move upward in the optical axis direction together with the AF coil 1420. In addition, the OIS holder 1310 and the lens can move upward in the optical axis direction together with the AF holder 1210. Therefore, the distance between the lens and the image sensor can be changed, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0398] When a reverse current is applied to the AF coil 1420, the AF coil 1420 may move downward in the optical axis direction due to electromagnetic interaction between the AF coil 1420 and the AF magnet 1410 (see Fig.64B). At this time, the AF holder 1210 can move downward in the optical axis direction together with the AF coil 1420. In addition, the OIS holder 1310 and the lens can move downward in the optical axis direction together with the AF holder 1210. Therefore, the distance between the lens and the image sensor can be changed, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0399] At the same time, during the movement process of the AF coil 1420, the AF sensor 1430 moves together with the AF coil 1420 and detects the magnetic field strength of the AF magnet 1410 to detect the movement amount or position of the lens in the optical axis direction. The movement amount or position of the lens in the optical axis direction detected by the AF sensor 1430 can be used for automatic focusing feedback control.

[0400] Hereinafter, an optical image stabilization (OIS) operation of a lens driving device according to a second embodiment of the present invention will be described with reference to the accompanying drawings.

[0401] Figure 65 to Figure 67 FIG. 1 is a diagram for explaining the hand shake correction drive of the lens driving device according to the second embodiment of the present invention. Fig.65 is a cross-sectional view illustrating a phenomenon of a moving unit in an initial state in which no current is applied to the OIS-x coil and the OIS-y coil. Fig.66 is a cross-sectional view illustrating that the OIS moving unit moves in the x-axis direction perpendicular to the optical axis when a current is applied to the OIS-x coil. Fig.67 is a cross-sectional view illustrating that the OIS moving unit moves in the y-axis direction perpendicular to both the optical axis and the x-axis when a current is applied to the OIS-y coil.

[0402] like Fig.65 As illustrated in FIG. 1 , the moving unit may be set in an initial position where no current is applied to the OIS-x coil 1520 and the OIS-y coil 1620. At this time, the moving unit may be the OIS moving unit 1300.

[0403] When a current is applied to the OIS-x coil 1520, the OIS-x coil 1520 may move in the x-axis direction perpendicular to the optical axis due to electromagnetic interaction between the OIS-x coil 1520 and the OIS-x magnet 1510 (see Fig.66a). At this time, the OIS holder 1310 can move in the x-axis direction together with the OIS-x coil 1520. In addition, the lens can move in the x-axis direction together with the OIS holder 1310. In more detail, when a forward current is applied to the OIS-x coil 1520, the OIS holder 1310 and the lens can move in one direction along the x-axis. In addition, when a reverse current is applied to the OIS-x coil 1520, the OIS-x coil 1520, the OIS holder 1310 and the lens can move in another direction along the x-axis.

[0404] When current is applied to the OIS-y coil 1620, the OIS-y coil 1620 may move in the y-axis direction perpendicular to the optical axis due to electromagnetic interaction between the OIS-y coil 1620 and the OIS-y magnet 1610 (see Fig.67 b). At this time, the OIS holder 1310 can move in the y-axis direction together with the OIS-y coil 1620. In addition, the lens can move in the y-axis direction together with the OIS holder 1310. In more detail, when a forward current is applied to the OIS-y coil 1620, the OIS holder 1310 and the lens can move in one direction along the y-axis. In addition, 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 another direction along the y-axis.

[0405] Meanwhile, the OIS-x sensor 1530 may detect the amount of movement or position of the OIS-x coil 1520 by detecting the magnetic field strength of the OIS-x magnet 1510. The amount of movement or position detected by the OIS-x sensor 1530 may be used for x-axis direction shake correction feedback control. The OIS-y sensor 1630 may detect the amount of movement or position of the OIS-y coil 1620 by detecting the magnetic field strength of the OIS-y magnet 1610. The amount of movement or position detected by the OIS-y sensor 1630 may be used for y-axis direction shake correction feedback control.

[0406] Hereinafter, a camera device according to a second embodiment of the present invention will be described with reference to the accompanying drawings.

[0407] Fig.68 is an exploded perspective view of a camera device according to a second embodiment of the present invention.

[0408] The camera device 1010A may include a camera module.

[0409] 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 lens 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 screw coupling and / or adhesive. The lens module 1020 may move integrally with the OIS holder 1310.

[0410] The camera device 1010A may include a filter 1030. The filter 1030 may be used to block light of a specific frequency band passing through the lens module 1020 from being incident on the image sensor 1060. The filter 1030 may be arranged parallel to the xy plane. The filter 1030 may be arranged between the lens module 1020 and the image sensor 1060. The filter 1030 may be arranged in the sensor base 1040. In a modified embodiment, the filter 1030 may be arranged in the base 1110. The filter 1030 may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor 1060.

[0411] The camera device 1010A may include a sensor base 1040. The sensor base 1040 may be disposed between the lens driving device 1010 and the printed circuit board 1050. The sensor base 1040 may include a protruding portion 1041 in which the filter 1030 is disposed. An opening may be formed in a portion of the sensor base 1040 in which the filter 1030 is disposed so that light passing through the filter 1030 may be incident on the image sensor 1060. An adhesive member may couple or attach the base 1310 of the lens driving device 1010 to the sensor base 1040. The adhesive member may additionally be used to prevent foreign matter from entering the interior of the lens driving device 1010. The adhesive member may include at least one of an epoxy resin, a thermosetting adhesive, and an ultraviolet curing adhesive.

[0412] The camera device 1010A may include a printed circuit board (PCB) 1050. The printed circuit board 1050 may be a substrate or a circuit board. The lens driving device 1010 may be disposed on the printed circuit board 1050. The sensor base 1040 may be disposed between the printed circuit board 1050 and the lens driving device 1010. The printed circuit board 1050 may be electrically connected to the lens driving device 1010. The image sensor 1060 may be disposed in the printed circuit board 1050. Various circuits, components, control units, etc. may be disposed in the printed circuit board 1050 to convert an image formed on the image sensor 1060 into an electrical signal and transmit the electrical signal to an external device.

[0413] The camera device 1010A may include an image sensor 1060. The image sensor 1060 may be configured so that light passing through the lens and the filter 1030 is incident thereon to form an image. The image sensor 1060 may be mounted on the printed circuit board 1050. The image sensor 1060 may be electrically connected to the printed circuit board 1050. For example, the image sensor 1060 may be coupled to the printed circuit board 1050 by surface mounting technology (SMT). As another example, the image sensor 1060 may be coupled to the printed circuit board 1050 by flip chip technology. The image sensor 1060 may be arranged so that the optical axis is aligned with the 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 the light irradiated to the effective image area of ​​the image sensor 1060 into an electrical signal. The image sensor 1060 may be any one of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID.

[0414] 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 through a circuit pattern provided in the printed circuit board 1050. The motion sensor 1070 may output rotation speed information due to the motion of the camera device 1010A. The motion sensor 1070 may include a dual-axis or tri-axis gyro sensor or an angular velocity sensor.

[0415] The camera device 1010A may include a control unit 1080. The control unit 1080 may be provided in the printed circuit board 1050. The control unit 1080 may be electrically connected to the coil 1330 of the lens driving device 1010. The control unit 1080 may individually control the direction, intensity, amplitude, etc. of the current supplied to the coil 1330. The control unit 1080 may control the lens driving device 1010 to perform an autofocus function and / or an image stabilization function. In addition, the control unit 1080 may perform autofocus feedback control and / or image stabilization feedback control on the lens driving device 1010.

[0416] 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.

[0417] Hereinafter, an optical device according to a second embodiment of the present invention will be described with reference to the accompanying drawings.

[0418] Fig.69 is a perspective view of an optical device according to a second embodiment of the present invention.

[0419] The optical device 1001 may include at least one of a mobile phone, a cellular phone, a portable terminal, a mobile terminal, a smart phone, a smart tablet, a portable smart device, a digital camera, a notebook computer, a digital broadcast terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), and a navigation device. The optical device 1001 may include any device for taking a video or a picture.

[0420] The optical device 1001 may include a body 1020. The optical device 1001 may include a camera device 1010A. The camera device 1010A may be disposed in the body 1020. The camera device 1010A may capture an object. The optical device 1001 may include a display. The display may be disposed in the body 1020. The display may output one or more of an image and a video captured by the camera device 1010A. The display may be disposed on a first surface of the body 1020. The camera device 1010A may be disposed on one or more of the first surface of the body 1020 and a second surface opposite to the first surface. Fig.69 As shown in FIG. 1 , in the camera device 1010A, a triple camera may be arranged in a vertical direction. Fig.70 As illustrated in , in the camera device 1010A-1, a triple camera may be arranged in the horizontal direction.

[0421] Hereinafter, a configuration of a lens driving device according to a third embodiment of the present invention is described with reference to the drawings.

[0422] Fig.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 a lens driving device according to a third embodiment of the present invention; Fig.73 It is along Fig.72 A cross-sectional view taken along line AA; Fig.74 It is along Fig.72 A cross-sectional view taken along line BB; Fig.75 It is along Fig.72 A cross-sectional view taken along line CC; Fig.76 yes Fig.75 an enlarged view of a portion of; Fig.77 is a cross-sectional view taken along a line perpendicular to the optical axis of a lens driving device according to a third embodiment of the present invention, viewed from above; Fig.78 is an exploded perspective view of a lens driving device according to a third embodiment of the present invention; Fig.79 is a perspective view of a lens driving device according to a third embodiment of the present invention, with a cover removed; Fig.81 Observed from different directions Fig.80 Stereoscopic image of Fig.82is a perspective view illustrating a fixing unit and related configurations of a lens driving device according to a third embodiment of the present invention; Fig.83 is a perspective view illustrating a moving unit and related components of a lens driving device according to a third embodiment of the present invention; Fig.84 Observed from the front Fig.83 A front view of Fig.85 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; Fig.86 Observed from different directions Fig.83 Stereoscopic image of Fig.87 yes Fig.86 A perspective view of the invention with the cover removed; Fig.88 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, as viewed from below; Fig.89 Observed from different directions Fig.88 Bottom stereogram of Fig.90 is a perspective view illustrating an OIS moving unit and related components of a lens driving device according to a third embodiment of the present invention; Fig.91 is a cross-sectional view illustrating an arrangement structure of an elastic member of a lens driving device according to a third embodiment of the present invention; Fig.92 Observed from different directions Fig.90 Bottom stereogram of Fig.93 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; and Fig.94 1 is a perspective view illustrating an elastic member and a wire material of a lens driving device according to a third embodiment of the present invention.

[0423] 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.

[0424] The lens driving device 2010 may include a fixing unit 2100. The fixing unit 2100 may be a relatively fixed part when the moving unit moves. The moving unit may move relative to the fixing unit 2100.

[0425] The lens driving device 2010 may include a base 2110. The fixing unit 2100 may include a 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 coupled 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 lower plate of the base 2110. The AF holder 2210 and the OIS holder 2310 may be disposed inside the base 2110. The AF holder 2210 and the OIS holder 2310 may be disposed inside a side plate of the base 2110.

[0426] In the third embodiment of the present invention, all of the AF magnet 2410, the OIS-x magnet 2510, and the OIS-y magnet 2610 may be disposed in the base 2110. All of the AF magnet 2410, the OIS-x magnet 2510, and the OIS-y magnet 2610 may be disposed in the fixing unit 2100. That is, in the auto focus operation, all of the AF magnet 2410, the OIS-x magnet 2510, and the OIS-y magnet 2610 may be maintained in a fixed state. In addition, in the shake correction operation, all of the AF magnet 2410, the OIS-x magnet 2510, and the OIS-y magnet 2610 may be maintained in a fixed state. In the auto focus operation, the AF magnet 2410 is fixed and the AF coil 2420 may move. In the image stabilization operation, the OIS-x magnet 2510 and the OIS-y magnet 2610 are fixed and the OIS-x coil 2520 and the OIS-y coil 2620 may move.

[0427] The base 2110 may include a lower plate. The base 2110 may include a side plate. The side plate may be a "side portion". The side plate of the base 2110 may extend from the upper surface of the lower plate.

[0428] The side panels of the base 2110 may include a plurality of side panels. The side panels of the base 2110 may include four side panels. However, one or more of the four side panels of the base 2110 may be omitted. The side panels of the base 2110 may include first to fourth side panels 2111, 2112, 2113, 2114. The base 2110 may include a first side panel 2111 and a second side panel 2113 disposed opposite to each other and a third side panel 2112 and a fourth side panel 2114 disposed opposite to each other.

[0429] The side portion of the base 2110 may include a plurality of side portions. The side portion of the base 2110 may include four side portions. However, one or more of the four side portions of the base 2110 may be omitted. The side portion of the base 2110 may include a first side portion to a fourth side portion. The base 2110 may include a first side portion and a second side portion disposed opposite to each other and a third side portion and a fourth side portion disposed opposite to each other.

[0430] 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 in the second side plate 2113 of the base 2110. The OIS-y magnet 2610 may be disposed in the third side plate 2112 of the base 2110.

[0431] The first side plate 2111 of the base 2110 may include a groove 2111a. The groove 2111a may be an "AF guide ball accommodating groove". The AF guide ball 2810 may be disposed in the groove 2111a. The groove 2111a may be in direct contact with the AF guide 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 AF guide ball 2810 at two points and a second groove that contacts the AF guide ball 2810 at one point. In a modified embodiment, both the first groove and the second groove may contact the AF guide ball 2810 at two points.

[0432] The second side plate 2113 of the base 2110 may include a protruding portion. The protruding portion may protrude outward. An extension portion 2722 of the outer substrate 2720 may be provided above and below the protruding portion. A groove may be formed in the protruding portion so as not to interfere even when the extension portion 2722 of the outer substrate 2720 moves.

[0433] The base 2110 may include a step portion 2115. The step portion 2115 may be formed at a lower portion of an outer surface of the base 2110. The step portion 2115 may protrude from the outer surface of the base 2110. A side plate 2122 of the cover 2120 may be provided on the step portion 2115 of the base 2110.

[0434] The lens driving device 2010 may include a cover 2120. The fixing unit 2100 may include a cover 2120. The cover 2120 may be disposed in 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 accommodate the AF holder 2210 therein. The cover 2120 may accommodate the OIS holder 2310 therein. The cover 2120 may be a shielding member. The cover 2120 may be a shielding cover.

[0435] The cover 2120 may include an upper plate 2141. The upper plate 2141 may be disposed on the moving unit. The upward movement of the moving unit may be restricted due to the contact of the moving unit with the upper plate 2141. The upper plate 2141 may include a hole through which light passes.

[0436] The cover 2120 may include a side panel 2142. The side panel 2142 may extend from the upper panel 2141. The side panel 2142 may be disposed in the base 2110. The side panel 2142 may be disposed in a step portion protruding from a lower portion of an outer surface of the base 2110. The side panel 2142 may include a plurality of side panels. The side panel 2142 may include four side panels. The side panel 2142 may include a first side panel and a second side panel disposed opposite to each other and a third side panel and a fourth side panel disposed opposite to each other.

[0437] The lens driving device 2010 may include a moving unit. The moving unit may be provided in the fixing unit 2100. The moving unit may be provided inside the fixing unit 2100. The moving unit may be provided on the fixing unit 2100. The moving unit may be provided in the fixing unit 2100 in a movably manner. The moving unit may be moved relative to the fixing unit 2100 by the driving unit. The moving unit may move during AF driving. The moving unit may move during OIS driving. The lens may be coupled to the moving unit.

[0438] The lens driving device 2010 may include an AF moving unit 2200. The AF moving unit 2200 may be provided in the fixed unit 2100. The AF moving unit 2200 may be provided inside the fixed unit 2100. The AF moving unit 2200 may be provided on the fixed unit 2100. The AF moving unit 2200 may be provided between the fixed unit 2100 and the OIS moving unit 2300. The AF moving unit 2200 may be movably provided in the fixed unit 2100. The AF moving unit 2200 may be moved in the optical axis direction relative to the fixed unit 2100 by the AF driving unit 2400. The AF moving unit 2200 may move during AF driving.

[0439] The lens driving device 2010 may include an AF holder 2210. The AF moving unit 2200 may include an AF holder 2210. The AF holder 2210 may be an "AF carrier". The AF holder 2210 may be disposed in the base 2110. The AF holder 2210 may be disposed on the base 2110. The AF holder 2210 may be disposed inside the cover 2120. The AF holder 2210 may be disposed between the base 2110 and the OIS holder 2310. The AF holder 1210 may be disposed in a movably manner in the optical axis direction.

[0440] The AF holder 2210 may include a protrusion. The protrusion may be coupled to the lower elastic member 2910. The lower elastic member 2910 may include a hole coupled to the protrusion of the AF holder 2210. In a modified embodiment, the AF holder 2210 may include a groove for accommodating an adhesive instead of the protrusion. In this case, the lower elastic member 2910 may include a hole provided 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.

[0441] 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 region coupled to the first protrusion 2211 and a second region 2212 coupled to the first protrusion 2212. The wire 2930 may include a first wire 2931 disposed at a first corner region of the fixing unit 2100. The coupling portion 2912 of the lower elastic member 2910 may include a first coupling portion coupled 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 coupling portion of the lower elastic member 2910. The connection portion 2913 of the lower elastic member 2910 may include a first connection portion 2913-1 connecting the first region of the outer portion 2911 and the first coupling portion, and a second connection portion 2913-2 connecting the second region of the outer portion 2911 and the first coupling portion. That is, the connection portion 2913 of the lower elastic member 2910 may be provided with two connection portions to connect one outer portion 2911 and one coupling portion 2912.

[0442] When viewed from below, the first connection portion 2913 - 1 and the second connection portion 2913 - 2 of the lower elastic member 2910 may be symmetrical about an imaginary straight line connecting the optical axis and the first corner region of the fixing unit 2100 .

[0443] The wire 2930 may include a second wire 2933 disposed in a second corner region of the fixing unit 2100. The coupling portion 2912 of the lower elastic member 2910 may include a second coupling portion coupled to the second wire 2933. The wire 2930 may include a third wire 2932 disposed in a third corner region of the fixing unit 2100. The coupling portion 2912 of the lower elastic member 2910 may include a third coupling portion coupled to the third wire 2932. The wire 2930 may include a fourth wire 2934 disposed in a fourth corner region of the fixing unit 2100. The coupling portion 2912 of the lower elastic member 2910 may include a fourth coupling portion coupled to the fourth wire 2934. The first corner region of the fixing unit 2100 may be disposed diagonally opposite to the second corner region, and the third corner region may be disposed diagonally opposite to the fourth corner region.

[0444] 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. The extension portion 2722 of the outer substrate 2720 may be provided on the upper and lower surfaces of the protrusion 2213.

[0445] The AF retainer 2210 may include a groove 2214. The groove 2214 may be an "AF guide ball accommodating groove". The AF guide ball 2810 may be disposed in the groove 2214. The groove 2214 may be in direct contact with the AF guide 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 AF guide ball 2810 at two points and a second groove that contacts the AF guide ball 2810 at one point. In a modified embodiment, both the first groove and the second groove may contact the AF guide ball 2810 at two points.

[0446] The AF holder 2210 may include a metal member 2216. The metal member 2216 may be insert-molded into the AF holder 2210. At least a portion of the metal member 2216 may be disposed on an upper surface of the AF holder 2210. The metal member 2216 may be disposed to enhance the strength of the AF holder 2210.

[0447] The lens driving device 2010 may include a cover 2220. The AF moving unit 2200 may include a cover 2220. The cover 2220 may be coupled to the AF holder 2210. The cover 2220 may be coupled to the lower surface of the AF holder 2210. The cover 2220 may be coupled to the AF holder 2210 from the lower side. The cover 2220 may include a hook 2221. The hook 2221 of the cover 2220 may be coupled to the AF holder 2210. The hook 2221 of the cover 2220 may protrude upward and be coupled to the side surface of the AF holder 2210.

[0448] 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 inside the fixed unit 2100. The OIS moving unit 2300 may be disposed in the fixed unit 2100. The OIS moving unit 2300 may be disposed inside the AF moving unit 2200. The OIS moving unit 2300 may be disposed in a movable manner. The OIS moving unit 2300 may be moved in an x-axis direction perpendicular to the optical axis relative to the fixed unit 2100 and the AF moving unit 2200 by the OIS-x driving unit 2500. The OIS moving unit 2300 may be moved in a y-axis direction perpendicular to the optical axis relative to the fixed unit 2100 and the AF moving unit 2200 by the OIS-y driving unit 2600. The OIS moving unit 2300 may move during OIS driving.

[0449] The OIS moving unit 2300 may be spaced apart from the fixed unit 2100 and the AF moving unit 2200. The OIS moving unit 2300 may be spaced apart from the fixed unit 2100 and the AF moving unit 2200 in the optical axis direction. The OIS moving unit 2300 may form a first gap downwardly with the fixed unit 2100 in the optical axis direction. In addition, the OIS moving unit 2300 may form a second gap upwardly with the AF moving unit 2200 in the optical axis direction. In this way, even when the OIS moving unit 2300 is tilted due to the influence of gravity due to the posture of the optical device, interference with the fixed unit 2100 and the AF moving unit 2200 may be prevented.

[0450] 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 inside the AF holder 2210. The OIS holder 2310 may be disposed inside the base 2110. The OIS holder 2310 may be disposed on the base 2110. The OIS holder 2310 may be disposed inside the cover 2120. The OIS holder 2310 may be disposed in a movably manner in a direction perpendicular to the optical axis.

[0451] The OIS holder 2310 may include an outer surface. The OIS holder 2310 may include a plurality of side surfaces. The OIS holder 2310 may include a first side surface and a second side surface disposed opposite to each other and a third side surface and a fourth side surface disposed opposite to 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.

[0452] 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 on the upper surface of the OIS holder 2310 in a concave manner. The groove 2311 may be provided at a position corresponding to the upper elastic member 2920 to prevent interference between the OIS holder 2310 and the upper elastic member 2920.

[0453] The OIS holder 2310 may include a lateral stopper. The lateral stopper may limit the lateral travel of the OIS holder 2310. That is, when the OIS holder 2310 moves to the maximum value, the lateral stopper of the lower surface OIS holder 2310 may contact at least one of the AF holder 2210 and the base 2110. The lateral stopper may be formed on the outer surface of the OIS holder 2310. The lateral stopper may protrude outward from the side surface of the OIS holder 2310.

[0454] The OIS holder 2310 may include a protrusion. The protrusion may be coupled to the upper elastic member 2920. The upper elastic member 2920 may include a hole coupled to the protrusion of the OIS holder 2310. In a modified embodiment, the OIS holder 2310 may include a groove for accommodating an adhesive instead of the protrusion. In this case, the upper elastic member 2920 may include a hole provided 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.

[0455] 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 coupled to the first protrusion 2314 and a second area 2212 coupled to the second protrusion 2315. The wire 2930 may include a first wire 2931 disposed at a first corner area of ​​the fixing unit 2100. The coupling portion 2922 of the upper elastic member 2920 may include a first coupling portion coupled 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 coupling portion of the upper elastic member 2920. The connection portion 2923 of the upper elastic member 2920 may include a first connection portion 2923-1 connecting the first area of ​​the inner portion 2921 and the first coupling portion, and a second connection portion 2923-2 connecting the second area of ​​the inner portion 2921 and the first coupling portion. That is, the connection portion 2923 of the upper elastic member 2920 may be provided with two connection portions to connect one inner portion 2921 and one coupling portion 2922.

[0456] When viewed from below, the first connection portion 2923 - 1 and the second connection portion 2923 - 2 of the upper elastic member 2920 may be symmetrical about an imaginary straight line connecting the optical axis and the first corner region of the fixing unit 2100 .

[0457] The coupling portion 2922 of the upper elastic member 2920 may include a second coupling portion coupled to the second wire 2933. The coupling portion 2922 of the upper elastic member 2920 may include a third coupling portion coupled to the third wire 2932. The coupling portion 2922 of the upper elastic member 2920 may include a fourth coupling portion coupled to the fourth wire 2934.

[0458] The lens driving device 2010 may include a driving unit. The driving unit may move the moving unit relative to the fixing 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.

[0459] 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 by electromagnetic force. The AF driving unit 2400 may include a coil and a magnet.

[0460] In the third embodiment of the present invention, the AF holder 2210 and the OIS holder 2310 can move in the optical axis direction by 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.

[0461] 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 in the side plate 2122 of the cover 2120. The AF magnet 2410 may be disposed on the outer surface of the base 2110. The AF magnet 2410 may be disposed on the inner side 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 attached to the base 2110 with an adhesive. The AF magnet 2410 may be disposed inside the cover 2120. The AF magnet 2410 may interact with the AF coil 2420. The AF magnet 2410 may 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 may face the AF coil 2420. The AF magnet 2410 and the AF coil 2420 may face each other. The AF magnet 2410 may overlap with the AF coil 2420 in a direction perpendicular to the optical axis.

[0462] The AF magnet 2410 may be a quadrupole magnet. The AF magnet 2410 may include a quadrupole magnetized magnet. The AF magnet 2410 may include a first magnet portion and a second magnet portion, the first magnet portion including an N pole and an S pole, and the second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a vertical direction. The first magnet portion and the second magnet portion may be spaced apart from each other in the vertical direction, and a neutral portion may be provided between the first magnet portion and the second magnet portion.

[0463] 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 with the AF magnet 2410 in a direction perpendicular to the optical axis. The AF coil 2420 may be disposed in the inner substrate 2710. The AF coil 2420 may be disposed in the first portion 2711 of the inner substrate 2710. The AF coil 2420 may be disposed in the AF holder 2210. The AF coil 2420 may be disposed in the AF moving unit 2200.

[0464] In the above, the AF magnet 2410 is described as being disposed in the fixed unit 2100 and the AF coil 2420 is described as being disposed in the AF moving unit 2200, but in a modified embodiment, they may be disposed in the opposite manner. That is, in a modified embodiment, the AF magnet 2410 may be disposed in the AF moving unit 2200. The AF coil 2420 may be disposed in the fixed unit 2100.

[0465] 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 in the substrate 2740. The AF sensor 2430 may be disposed in the first portion 2711 of the substrate 2740. The AF sensor 2430 may detect the AF magnet 2410. The AF sensor 2430 may detect the movement of the AF magnet 2410. The movement amount or position of the AF magnet 2410 detected by the AF sensor 2430 may be used for feedback of automatic focus driving.

[0466] 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.

[0467] The AF sensor 2430 may be disposed inside the AF coil 2420. The AF sensor 2430 may overlap with the neutral portion of the AF magnet 2410 in a direction perpendicular to the optical axis. In a modified embodiment, the AF sensor 2430 may be disposed outside the AF coil 2420.

[0468] The lens driving device 2010 may include an OIS-x driving unit 2500. The OIS-x driving unit 2500 may enable the OIS moving unit 2300 to move in the x-axis direction perpendicular to the optical axis direction. The OIS-x driving unit 2500 may enable the OIS holder 2310 to move in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit 2500 may use an 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.

[0469] In the third embodiment of the present invention, the OIS holder 1310 may move in the x-axis direction perpendicular to the optical axis direction through the interaction between the OIS-x coil 2520 and the OIS-x magnet 2510. The OIS-x coil 2520 and the OIS holder 2310 may move in the x-axis direction as a unit.

[0470] 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 fixing unit 2100. The OIS-x magnet 2510 may be disposed in the base 2110. The OIS-x magnet 2510 may be disposed on an outer surface of the base 2110. The OIS-x magnet 2510 may be disposed on an 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 attached to the base 2110 with an adhesive. The OIS-x magnet 2510 may be disposed inside the cover 2120. The OIS-x magnet 2510 may interact with the OIS-x coil 2520. The OIS-x magnet 2510 may 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 may face the OIS-x coil 2520. The OIS-x magnet 2510 and the OIS-x coil 2520 may face each other. The OIS-x magnet 2510 may overlap with the OIS-x coil 2520 in a direction perpendicular to the optical axis.

[0471] 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 an N pole and an S pole. The inner surface of the OIS-x magnet 2510 is an N pole and the outer surface may be an S pole.

[0472] 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 and the OIS-x magnet 2510 may face each other. 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 with the OIS-x magnet 2510 in a direction perpendicular to the optical axis. The OIS-x coil 2520 may be disposed on the inner substrate 2710. The OIS-x coil 2520 may be disposed in the second portion 2713 of the inner substrate 2710. The OIS-x coil 2520 may be disposed in the OIS holder 2310. The OIS-x coil 2520 may be disposed in the OIS moving unit 2300.

[0473] 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 in the inner substrate 2710. The OIS-x sensor 2530 may be disposed in 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 detect the OIS-x magnet 2510. The OIS-x sensor 2530 may detect the magnetic force of the OIS-x magnet 2510. The OIS-x sensor 2530 may be disposed in the OIS-x coil 2520. The OIS-x sensor 2530 may overlap with 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 may detect movement of the OIS-x magnet 2510. The movement amount or position of the OIS-x magnet 2510 detected by the OIS-x sensor 2530 may be used for feedback of shake correction driving in the x-axis direction.

[0474] 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 a y-axis direction perpendicular to the optical axis direction and the x-axis direction. The OIS-y driving unit 2600 may move the OIS holder 2310 in a y-axis direction perpendicular to both the optical axis and the x-axis direction. The OIS-y driving unit 2600 may move the OIS holder 2310 in a y-axis direction perpendicular to both the optical axis and the x-axis direction by electromagnetic force. The OIS-y driving unit 2600 may include a coil and a magnet.

[0475] In the third embodiment of the present invention, the OIS holder 2310 can move in the y-axis direction perpendicular to both the optical axis direction and the x-axis direction through 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 in the y-axis direction as a unit.

[0476] 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 in the fixing unit 2100. The OIS-y magnet 2610 may be disposed in the base 2110. The OIS-y magnet 2610 may be disposed on an outer surface of the base 2110. The OIS-y magnet 2610 may be disposed on an 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 attached to the base 2110 with an adhesive. The OIS-y magnet 2610 may be disposed inside the cover 2120. The OIS-y magnet 2610 may interact with the OIS-y coil 2620. The OIS-y magnet 2610 may 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 may face the OIS-y coil 2620. The OIS-y magnet 2610 and the OIS-y coil 2620 may face each other. The OIS-y magnet 2610 may overlap with the OIS-y coil 2620 in a direction perpendicular to the optical axis.

[0477] 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 an N pole and an S pole. The inner surface of the OIS-y magnet 2610 may be an N pole and the outer surface may be an S pole.

[0478] The mirror 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 relative to the optical axis. The OIS-y coil 2620 may move in the y-axis direction 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 and the OIS-y magnet 2610 may face each other. The OIS-y coil 2620 may be disposed at a position corresponding to the OIS-y magnet 2610. The OIS-y coil 2620 may overlap with the OIS-y magnet 2610 in a direction perpendicular to the optical axis. The OIS-y coil 2620 may be disposed in the inner substrate 2710. The OIS-y coil 2620 may be disposed in the third portion 2712 of the inner substrate 2710. The OIS-y coil 2620 may be disposed in the OIS holder 2310. The OIS-y coil 2620 may be disposed in the OIS moving unit 2300.

[0479] 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 in the inner substrate 2710. The OIS-y sensor 2630 may be disposed in 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 detect the OIS-y magnet 2610. The OIS-y sensor 2630 may detect the magnetic force of the OIS-y magnet 2610. The OIS-y sensor 2630 may be disposed in the OIS-y coil 2620. The OIS-y sensor 2630 may overlap with 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 may detect movement of the OIS-y magnet 2610. The movement amount or position of the OIS-y magnet 2610 detected by the OIS-y sensor 2630 may be used for feedback of shake correction driving in the y-axis direction.

[0480] 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 be flexible. The substrate may be a circuit board. The substrate may be a printed circuit board.

[0481] The mirror 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 in a manner movable 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 may include an elastic member.

[0482] The inner substrate 2710 may include a first portion 2711. The first portion 2711 may be provided in the AF moving unit 2200. The first portion 2711 may be provided in the AF holder 2210. The AF coil 2420 may be provided in the first portion 2711 of the inner substrate 1710. The AF sensor 2430 may be provided in the first portion 2711 of the inner substrate 2710. A yoke 2830 may be provided in the first portion 2711 of the inner substrate 2710.

[0483] The inner substrate 2710 may include a second portion 2713. The second portion 2713 may be disposed in the OIS holder 2310. The second portion 2713 may be disposed on a second side surface of the OIS holder 2310. The OIS-x coil 2520 may be disposed in the second portion 2713 of the inner substrate 2710. The OIS-x sensor 2530 may be disposed in the second portion 2713 of the inner substrate 2710.

[0484] The inner substrate 2710 may include a third portion 2712. The third portion 2712 may be disposed in the OIS holder 2310. The third portion 2712 may be disposed on a third side surface of the OIS holder 2310. The OIS-y coil 2620 may be disposed in the third portion 2712 of the inner substrate 2710. The OIS-y sensor 2630 may be disposed in the third portion 2712 of the inner substrate 2710.

[0485] 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 surface of the OIS holder 2310 and the AF holder 2210.

[0486] However, in the “first to fourth side surfaces” of the OIS holder 2310 described in this specification, “first to fourth” are only used to distinguish the side surfaces from each other, and can be referred to in different ways as needed. For example, the “second side surface” is referred to as the “first side surface”, and the “third side surface” can be referred to as the “second side surface”.

[0487] 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 connected to the coils 2420, 2520, 2620. The terminal 2714a may be electrically connected to the sensors 2430, 2530, 2630.

[0488] 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 to penetrate the fourth portion 2714 of the inner substrate 2710. The hole 2714b may be provided at a position corresponding to the lateral stopper of the OIS holder 2310. Due to the hole 2714b, the inner substrate 2710 may not interfere with the lateral stopper of the OIS holder 2310.

[0489] The lens driving device 2010 may include an external substrate 2720. The external substrate 2720 may be disposed in the base 2110. The external substrate 2720 may be electrically connected to the coils 2420, 2520, 2620. The external substrate 2720 may be electrically connected to the sensors 2430, 2530, 2630. The external substrate 2720 may connect the AF holder 2210 and the base 2110. The external substrate 2720 may elastically connect the AF holder 2210 and the base 2110. The external substrate 2720 may support the AF holder 2210 in a manner movable relative to the base 2110. The external substrate 2720 may guide the AF holder 2210 to move relative to the base 2110 in the optical axis direction. The external substrate 2720 may include a flexible substrate. The external substrate 2720 may include a flexible printed circuit board (FPCB). The external substrate 2720 may include an elastic portion. The external substrate 2720 may include an elastic member.

[0490] The outer substrate 2720 may include a body portion 2721. The body portion 2721 may be disposed in the fixing unit 2100. The body portion 2721 may be disposed in the base 2110. The body portion 2721 may be formed to surround the side surface of the base 2110. The body portion 2721 may be disposed on three side surfaces of the base 2110. The body portion 2721 may include two terminal portions. The two terminal portions may be disposed on opposite sides relative to the optical axis. The terminal portion may include a terminal 2721a.

[0491] The outer substrate 2720 may include a terminal 2721a. The body portion 2721 of the outer substrate 2720 may include a terminal 2721a. The terminal 2721a may be electrically connected to the terminal 2722a. The terminal 2721a may be provided at the lower end portion 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 by solder. The terminal 2721a may be coupled to the terminal of the printed circuit board 2050 by a conductive member. The terminal 2721a may be connected to the terminal of the printed circuit board 2050. The terminal 2721a may be electrically connected to the terminal of the printed circuit board 2050.

[0492] The outer substrate 2720 may include an extension portion 2722. The extension portion 2722 may be a "leg portion". The extension portion 2722 may extend from the body portion 2721. At least a portion of the extension portion 2722 may move together with the AF moving unit 2200. At least a portion of the extension portion 2722 may move together with the AF holder 2210. The extension portion may extend from the body portion 2721. The extension portion 2722 may include a plurality of leg portions. The extension portion 2722 may include a first leg portion and a second leg portion. The second leg portion may be disposed below the first leg portion.

[0493] The outer substrate 2720 may include a terminal 2722a. The extension portion 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 by solder. The terminal 2722a may be coupled to the terminal 2714a of the inner substrate 2710 by a conductive member. The terminal 2722a may be connected to the terminal 2714a of the inner substrate 2710. The terminal 2722a may be electrically connected to the terminal 2714a of the inner substrate 2710.

[0494] 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 unit relative to the fixing unit 2100 in a specific direction.

[0495] 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 may guide the movement of the AF moving unit 2200 in the optical axis direction. The ball 2810 may guide the movement of the AF moving unit 2200 relative to the fixed unit 2100 in the optical axis direction. The ball 2810 may 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 along the x-axis direction. The ball 2810 may be disposed in a groove 2111a of the base 2110. The ball 2810 may not overlap with the OIS moving unit 2300 in the optical axis direction. The ball 2810 may be disposed in the first groove 2214 of the AF holder 2210. The ball 2810 may include a first-first ball that contacts the base 2110 and the AF holder 2210 at four points, and a first-second ball that contacts the base 2110 and the AF holder 2210 at three points. The ball 2810 may have a spherical shape. The ball 2810 may be formed of metal. Grease may be applied to the surface of the ball 2810.

[0496] The ball bearing 2810 may include a plurality of balls. The ball bearing 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.

[0497] The lens driving device 2010 may include a yoke 2830. The yoke 2830 may be disposed in the first portion 2711 of the inner substrate 2710. 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 formed of metal. The AF guide ball 2810 may be pressed between the base 2110 and the AF retainer 2210 by the attractive force between the yoke 2830 and the AF magnet 2410. That is, the contact state of the AF guide ball 1810 with the base 2110 and the AF retainer 2210 may be maintained by the attractive force between the yoke 2830 and the AF magnet 2410.

[0498] The lens driving device 2010 may include an elastic member 2900. The elastic member 2900 may be connected to 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 in a manner that it can move relative to the AF moving unit 2200. The elastic member 2900 may guide the 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 direction and the y-axis direction relative to the AF moving unit 2200. The elastic member 2900 may be formed to guide both the OIS-x-axis actuation and the OIS-y-axis actuation. 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 formed of metal. The first resonance frequency of the elastic member 2900 may be 40 Hz to 60 Hz. The first resonance frequency of the elastic member 2900 may be 30 Hz to 70 Hz.

[0499] The spring stiffness of the elastic member 2900 can be determined by the weight of the mobile body. The spring stiffness of the elastic member 2900 can be determined by the target natural frequency [Hz] of the mobile body. The spring stiffness of the elastic member 2900 can be determined by the electromagnetic force level. In summary, since the weight of the mobile body and the electromagnetic force level vary greatly depending on the size of the lens, the spring stiffness can also vary greatly. However, in the case of the target natural frequency, considering the control characteristics, in the case of a spring model such as the third embodiment of the present invention, it can be set to a value of at least 40 Hz or greater.

[0500] For an image sensor 1 / 1" OIS actuator, the x-axis spring constant Kx may be 104 N / m (240 Hz) to 228 N / m (260 Hz). In addition, the y-axis spring constant Ky may be 104 N / m (240 Hz) to 228 N / m (260 Hz). The x-axis spring constant and the y-axis spring constant may be the same. The z-axis spring constant Kz may be set to a maximum value that satisfies the Kx and Ky conditions.

[0501] 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 coupled to the AF moving unit 2200. The lower elastic member 2910 may be coupled 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 in the AF holder 2210. The lower elastic member 2910 may be disposed on the lower portion of 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 body portion 2721. The lower elastic member 2910 may be coupled to the lower surface of the body portion 2721. The lower elastic member 2910 may be disposed perpendicular to the optical axis.

[0502] The lower elastic member 2910 may include a plurality of elastic units spaced apart from each other. The lower elastic member 2910 may include first to fourth elastic units corresponding to the first to fourth wires 2931, 2932, 2933, 2934. The first to fourth elastic units may be spaced apart from each other.

[0503] The lower elastic member 2910 may include an outer portion 2911. The outer portion 2911 may be coupled to the AF moving unit 2200. The lower elastic member 2910 may include a coupling portion 2912. The coupling portion 2912 may be coupled to the 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 coupling portion 2912. The outer portion 2911 of the lower elastic member 2910 and the coupling portion 2912 of the lower elastic member 2910 may be arranged at the same height. However, the OIS moving unit 2300 may be arranged in a state where it is tilted downward due to the weight of the following lens: the lens is in an UP posture in which it is arranged above the image sensor. At this time, the coupling portion 2912 may be arranged at a lower position than the outer portion 2911.

[0504] 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 coupled to the OIS moving unit 2300. The upper elastic member 2920 may be coupled to the OIS holder 2310. The upper elastic member 2920 may be disposed on an upper surface of the OIS holder 2310. The upper elastic member 2920 may be disposed in the OIS holder 2310. The upper elastic member 2920 may be disposed on an upper portion of the OIS holder 2310. The upper elastic member 2920 may be disposed in 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 integrally.

[0505] The upper elastic member 2920 may include an inner portion 2921. The inner portion 2921 may be coupled to the OIS moving unit 2300. The upper elastic member 2920 may include a coupling portion 2922. The coupling portion 2922 may be coupled to the 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 coupling portion 2922. The inner portion 2921 of the upper elastic member 2920 and the coupling portion 2922 of the lower elastic member 2910 may be arranged at the same height. However, the OIS moving unit 2300 may be arranged in a state where it is tilted downward due to the weight of the following lens: the lens is in its UP posture set on the image sensor. At this time, the inner portion 2921 may be arranged at a lower position than the coupling portion 2922.

[0506] The lens driving device 2010 may include a wire 2930. The wire 2930 may be a "side portion 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 parallel to the optical axis. The wire 2930 may be arranged parallel to the optical axis direction.

[0507] 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, 2934 disposed in the first to fourth corner regions of the fixing unit 2100, respectively.

[0508] Hereinafter, auto focus (AF) driving of a lens driving device according to a third embodiment of the present invention will be described with reference to the accompanying drawings.

[0509] Figures 95 to 97 FIG. 1 is a diagram for explaining the automatic focus driving of the lens driving device according to the third embodiment of the present invention. Fig.95 is a cross-sectional view illustrating a phenomenon of the moving unit in an initial state in which no current is applied to the AF coil. Fig.96 is a cross-sectional view illustrating a phenomenon in which the moving unit moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.97 is a cross-sectional view illustrating that the moving unit moves downward in the optical axis direction when a reverse current is applied to the AF coil.

[0510] In an initial position where no current is applied to the AF coil 2420, the moving unit may be disposed at a position spaced apart from both the upper plate 2121 of the cover 2120 and the base 2110. At this time, the moving unit may be the AF moving unit 2200. In addition, the moving unit may include the AF moving unit 2200 and the OIS moving unit 2300.

[0511] 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 the electromagnetic interaction between the AF coil 2420 and the AF magnet 2410 (see Fig.96 A). At this time, the AF holder 2210 can move upward in the optical axis direction together with the AF coil 2420. In addition, the OIS holder 2310 and the lens can move upward in the optical axis direction together with the AF holder 2210. Therefore, the distance between the lens and the image sensor can be changed, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0512] When a reverse current is applied to the AF coil 2420, the AF coil 2420 may move downward in the optical axis direction due to electromagnetic interaction between the AF coil 2420 and the AF magnet 2410 (see Fig.97 B). At this time, the AF holder 2210 can move downward in the optical axis direction together with the AF coil 2420. In addition, the OIS holder 2310 and the lens can move downward in the optical axis direction together with the AF holder 2210. Therefore, the distance between the lens and the image sensor can be changed, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0513] At the same time, during the movement process of the AF coil 2420, the AF sensor 2430 moves together with the AF coil 2420 and detects the magnetic field strength of the AF magnet 2410 to detect the movement amount or position of the lens in the optical axis direction. The movement amount or position of the lens in the optical axis direction detected by the AF sensor 2430 can be used for automatic focusing feedback control.

[0514] Hereinafter, an optical image stabilization OIS operation of a lens driving device according to a third embodiment of the present invention will be described with reference to the accompanying drawings.

[0515] Figures 98 to 100 FIG. 1 is a diagram for explaining the shake correction driving of the lens driving device according to the third embodiment of the present invention. Fig.98 is a cross-sectional view illustrating the moving unit in an initial state in which no current is applied to the OIS-x coil and the OIS-y coil. Fig.99 is a cross-sectional view illustrating that the OIS moving unit moves in the x-axis direction perpendicular to the optical axis when a current is applied to the OIS-x coil. Fig.100 is a cross-sectional view illustrating that the OIS moving unit moves in the y-axis direction perpendicular to both the optical axis and the x-axis when a current is applied to the OIS-y coil.

[0516] like Fig.98 As illustrated in FIG. 2 , the moving unit may be set in an initial position where no current is applied to the OIS-x coil 2520 and the OIS-y coil 2620. At this time, the moving unit may be the OIS moving unit 2300.

[0517] When a current is applied to the OIS-x coil 2520, the OIS-x coil 2520 may move in the x-axis direction perpendicular to the optical axis due to electromagnetic interaction between the OIS-x coil 2520 and the OIS-x magnet 2510 (see Fig.99 A). At this time, the OIS holder 2310 can move in the x-axis direction together with the OIS-x coil 2520. In addition, the lens can move in the x-axis direction together with the OIS holder 2310. In more detail, when a forward current is applied to the OIS-x coil 2520, the OIS holder 2310 and the lens can move in one direction along the x-axis. In addition, when a reverse current is applied to the OIS-x coil 2520, the OIS-x coil 2520, the OIS holder 2310 and the lens can move in another direction along the x-axis.

[0518] When current is applied to the OIS-y coil 2620, the OIS-y coil 2620 may move in the y-axis direction perpendicular to the optical axis due to electromagnetic interaction between the OIS-y coil 2620 and the OIS-y magnet 2610 (see Fig.100B). At this time, the OIS holder 2310 can move in the y-axis direction together with the OIS-y coil 2620. In addition, the lens can move in the y-axis direction together with the OIS holder 2310. In more detail, when a forward current is applied to the OIS-y coil 2620, the OIS holder 2310 and the lens can move in one direction along the y-axis. In addition, 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 another direction along the y-axis.

[0519] Meanwhile, the OIS-x sensor 2530 can detect the amount of movement or position of the OIS-x coil 2520 by detecting the magnetic field strength of the OIS-x magnet 2510. The amount of movement or position detected by the OIS-x sensor 2530 can be used for the feedback control of the shake correction in the x-axis direction. The OIS-y sensor 2630 can detect the amount of movement or position of the OIS-y coil 2620 by detecting the magnetic field strength of the OIS-y magnet 2610. The amount of movement or position detected by the OIS-y sensor 2630 can be used for the feedback control of the shake correction in the y-axis direction.

[0520] Hereinafter, a camera device according to a third embodiment of the present invention will be described with reference to the accompanying drawings.

[0521] Fig.101 is an exploded perspective view of a camera device according to a third embodiment of the present invention.

[0522] The camera device 2010A may include a camera module.

[0523] 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 lens barrel. The lens module 2020 may be coupled to the OIS holder 2310 of the lens driving device 2010. The lens module 2020 may be coupled to the OIS holder 2310 by screw coupling and / or adhesive. The lens module 2020 may move integrally with the OIS holder 2310.

[0524] The camera device 2010A may include a filter 2030. The filter 2030 may be used to block light of a specific frequency band passing through the lens module 2020 from being incident on the image sensor 2060. 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 in the sensor base 2040. In a modified embodiment, the filter 2030 may be arranged in the base 2110. The filter 2030 may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor 2060.

[0525] 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 protruding portion 2041 in which a filter 2030 is disposed. An opening may be formed in a portion of the sensor base 2040 in which the filter 2030 is disposed so that light passing through the filter 2030 may be incident on the image sensor 2060. An adhesive member may couple or attach the base 2310 of the lens driving device 2010 to the sensor base 2040. The adhesive member may additionally be used to prevent foreign matter from entering the interior of the lens driving device 2010. The adhesive member may include at least one or more of an epoxy resin, a thermosetting adhesive, and an ultraviolet curing adhesive.

[0526] 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. The lens driving device 2010 may be disposed on the printed circuit board 2050. The 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. The image sensor 2060 may be disposed on the printed circuit board 2050. Various circuits, elements, control units, etc. may be disposed on the printed circuit board 2050 to convert an image formed on the image sensor 2060 into an electrical signal and transmit the electrical signal to an external device.

[0527] The camera device 2010A may include an image sensor 2060. The image sensor 2060 may be a configuration on which light passing through the lens and the filter 2030 is incident to form an image. The image sensor 2060 may be mounted on the 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 coupled to the printed circuit board 2050 by surface mounting technology (SMT). As another example, the image sensor 2060 may be coupled to the printed circuit board 2050 by flip chip technology. The image sensor 2060 may be arranged so that the optical axis of the image sensor 2060 is aligned with the optical axis of the 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 the light irradiated to the effective image area of ​​the image sensor 2060 into an electrical signal. The image sensor 2060 may be any one of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID.

[0528] 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 through a circuit pattern provided on the printed circuit board 2050. The motion sensor 2070 may output rotation speed information due to the motion of the camera device 2010A. The motion sensor 2070 may include a dual-axis or tri-axis gyro sensor or an angular velocity sensor.

[0529] 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 coil 2330 of the lens driving device 2010. The control unit 2080 may individually control the direction, intensity, amplitude, etc. of the current supplied to the coil 2330. The control unit 2080 may control the lens driving device 2010 to perform an automatic focusing function and / or a shake correction function. In addition, the control unit 2080 may perform automatic focusing feedback control and / or shake correction feedback control on the lens driving device 2010.

[0530] 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.

[0531] Hereinafter, an optical device according to a third embodiment of the present invention will be described with reference to the accompanying drawings.

[0532] Fig.102 is a perspective view of an optical device according to a third embodiment of the present invention; and Fig.103is a perspective view of an optical device according to a modified embodiment.

[0533] The optical device 1001 may include at least one of a mobile phone, a cellular phone, a portable terminal, a mobile terminal, a smart phone, a smart tablet, a portable smart device, a digital camera, a notebook computer, a digital broadcast terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), and a navigation device. The optical device 1001 may include any device for taking a video or a picture.

[0534] The optical device 2001 may include a body 2020. The optical device 2001 may include a camera device 2010A. The camera device 2010A may be disposed in the body 2020. The camera device 2010A may capture an object. The optical device 2001 may include a display. The display may be disposed in the body 2020. The display may output one or more of an image and a video captured by the camera device 2010A. The display may be disposed on a first surface of the body 2020. The camera device 2010A may be disposed on one or more of the first surface of the body 2020 and a second surface opposite to the first surface. Fig.102 As shown in FIG. 2010A, in the camera device 2010A, a triple camera may be arranged in a vertical direction. Fig.103 As illustrated in , in the camera device 2010A-1, a triple camera can be arranged in the horizontal direction.

[0535] Although the first to third embodiments of the present invention are described above, some of the components of the first to third embodiments may be replaced with each other. That is, some of the components of the first embodiment may be replaced with corresponding components of one or more of the second and third embodiments. Some of the components of the second embodiment may be replaced with corresponding components of one or more of the first and third embodiments. Some of the components of the third embodiment may be replaced with corresponding components of one or more of the first and second embodiments.

[0536] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, it will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing its technical spirit or basic features. Therefore, it should be understood that the above embodiments are illustrative in all aspects and not restrictive.

Claims

1. A lens driving device, comprising: base; a first retainer disposed in the base; a second holder disposed in the first holder; First to third magnets, wherein the first to third magnets are disposed on the base; a first coil disposed on the first holder and configured to interact with the first magnet; a second coil disposed on the second holder and configured to interact with the second magnet; as well as A third coil is disposed on the second holder and is configured to interact with the third magnet.

2. The lens driving device according to claim 1, wherein: The first holder is configured to move in the optical axis direction through interaction between the first coil and the first magnet. wherein, through the interaction between the second coil and the second magnet, the second holder is configured to move in a first direction perpendicular to the optical axis direction, and Wherein, through the interaction between the third coil and the third magnet, the second holder is configured to move in a second direction perpendicular to both the optical axis direction and the first direction.

3. The lens driving device according to claim 2, wherein: The second holder is configured to move in the optical axis direction together with the first holder through interaction between the first coil and the first magnet.

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

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

6. The lens driving device according to claim 5, comprising a first substrate, the first substrate comprising 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, in, The first coil is disposed on the first portion of the first substrate, wherein the second coil is disposed on the second portion of the first substrate, and Wherein, the third coil is arranged on the third portion of the first substrate.

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

8. The lens driving device according to claim 7, comprising a second substrate disposed on the base, in, The second substrate includes a body portion disposed on the base and an extension portion extending from the body portion. wherein the extension portion includes a first terminal connected to the terminal of the first substrate, wherein the body portion includes a second terminal electrically connected to the first terminal, and Wherein, at least a portion of the extension portion is configured to move together with the first retainer. 9 . The lens driving device according to claim 1 , comprising a first ball disposed between the base and the first holder. 10 . The lens driving device according to claim 6 , comprising a yoke provided on the first portion of the first substrate and configured to generate an attractive force with the first magnet.

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