Lens driving device, camera device, and optical device

Abstract

The present embodiment relates to a lens driving device comprising: a base part; a housing disposed on the base; a guide frame disposed in the housing; a spool disposed in the guide frame; a first spheroid disposed between the base and the housing; a second spherical body disposed between one side surface of the guide frame and a side surface of the housing; and a third spherical body disposed between the side surface of the bobbin and the other side surface of the guide frame.

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 instruments 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. In addition, a hand shake correction function is applied to prevent a phenomenon in which the focus is shaken due to hand shake of the user.

[0004] The autofocus function and hand-shake correction function can be achieved through the electromagnetic interaction between the magnet and the coil.

[0005] However, in the conventional lens driving device, in the arrangement of the magnet and the coil for performing the autofocus function, the magnet that does not require electrical connection is arranged in the moving part, and the coil is arranged in the fixed part. In this case, there is a problem that the magnet heavier than the coil is arranged in the moving part, and the current consumption for performing the autofocus function increases.

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

[0007] In addition, in order to set up magnets and coils for performing autofocus functions and hand shake correction functions, a size larger than the thickness of the smartphone in the optical axis direction is required, which causes the camera device installed on the smartphone to protrude more than other parts of the smartphone.

[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 that reduces power consumption for performing an auto-focus function by providing a coil that is lightweight compared to a magnet in a moving unit.

[0011] Furthermore, the present embodiment aims to provide a camera apparatus which has an autofocus function and a hand-shake correction function but whose size in the optical axis direction is minimized.

[0012] Technical Solution

[0013] According to the present embodiment, the lens driving device may include: a base; a shell, which is arranged on the base; a guide frame, which is arranged inside the shell; a bobbin, which is arranged in the guide frame; a first spherical member, which is arranged between the base and the shell; a second spherical member, which is arranged between one side surface of the guide frame and the side surface of the shell; and a third spherical member, which is arranged between the side surface of the bobbin and the other side surface of the guide frame.

[0014] According to the present embodiment, the lens driving device may include: a fixed unit; a first movable unit, which is arranged on the fixed unit; a second movable unit, which is arranged inside the first movable unit and includes a bobbin and a guide frame; a first driving unit, which moves the first movable unit along the optical axis direction; a second driving unit, which moves the second movable unit along a direction perpendicular to the optical axis direction; a first supporting member, which is arranged between the first movable unit and the fixed unit; a second supporting member, which is arranged between the side surface of the first movable unit and the side surface of the second movable unit; and a third supporting member, which is arranged between the side surface of the bobbin and the side surface of the guide frame.

[0015] The lens driving device may include: a first driving unit that moves the guide frame in a first direction perpendicular to the optical axis direction; and a second driving unit that moves the bobbin in a second direction perpendicular to the optical axis direction and the first direction.

[0016] According to the present embodiment, the lens driving device may include: a fixing unit; a first moving unit, which is arranged on the fixing unit; a second moving unit, which is arranged inside the first moving unit and includes a bobbin and a guide frame; a first driving unit, which moves the first moving unit along the optical axis direction; a second driving unit, which is arranged in the first moving unit and the second moving unit and moves the second moving unit along the x-axis; and a third driving unit, which moves the bobbin along the y-axis.

[0017] The first moving unit may bring the bobbin into close contact with the guide frame.

[0018] The first moving unit may include a yoke which brings the bobbin into close contact with the guide frame.

[0019] The first moving unit may include a first yoke that brings the first moving unit into close contact with the fixing unit and a second yoke that brings the guide frame into close contact with the first moving unit.

[0020] The first moving unit may include a third yoke which brings the bobbin into close contact with the guide frame.

[0021] The first moving unit may include a housing, and the first to third yokes may be coupled to the housing.

[0022] The third driving unit may include a first magnet provided in the bobbin and a first coil interacting with the first magnet, and the first coil may move together with the first moving unit.

[0023] The second driving unit may include a second magnet provided in the guide frame and a second coil interacting with the second magnet, and the second coil may move together with the first moving unit.

[0024] The first driving unit may include a third magnet provided in the fixing unit and a third coil interacting with the third magnet, and the third coil may move together with the first moving unit.

[0025] The lens driving device may include a fourth magnet provided in the bobbin, and a yoke provided in the second moving unit to apply an attractive force to the fourth magnet.

[0026] When the second moving unit moves along the x-axis by the second driving unit, the distance between the fourth magnet and the yoke along the x-axis is maintained, and the distance between the first magnet and the first coil along the x-axis may be changed.

[0027] The fourth magnet may be spaced apart from the first magnet, and the fourth magnet may not face the first coil.

[0028] Each of the first magnet, the second magnet, and the fourth magnet may include a first magnet portion, a second magnet portion, and a neutral portion disposed between the first magnet portion and the second magnet portion, the first magnet portion including an N pole and an S pole, and the second magnet portion including an S pole and an N pole.

[0029] When viewed from above, the third magnet, the third coil, the first magnet, and the first coil may be sequentially disposed on a first imaginary straight line parallel to the x-axis.

[0030] When viewed from above, the third magnet, the third coil, the fourth magnet, and the yoke may be sequentially disposed on a second imaginary straight line parallel to the x-axis.

[0031] The camera device according to the present embodiment may include: a printed circuit board; an image sensor disposed in the printed circuit board; a lens driving device disposed in the printed circuit board; and a lens coupled to the lens driving device.

[0032] An optical device according to the present embodiment 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.

[0033] Beneficial effects

[0034] According to the present embodiment, since a coil lighter than a magnet is provided in the moving unit, current consumption for performing an auto focus function can be reduced.

[0035] Furthermore, an auto focus function and a hand shake correction function can be performed in a camera device whose size is minimized in the optical axis direction.

[0036] That is, according to the present embodiment, even if the camera device does not protrude from the smartphone, both the autofocus function and the hand-shake correction function can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a conceptual diagram of the lens driving device according to the present embodiment.

[0038] Figure 2 It is a perspective view of the lens driving device according to the present embodiment.

[0039] Figure 3 It is along Figure 2 A cross-sectional view taken along line AA.

[0040] Figure 4 It is along Figure 2 A cross-sectional view taken along line BB.

[0041] Figure 5 It is along Figure 2 A cross-sectional view taken along line CC.

[0042] Figure 6 is a cross-sectional view of the lens driving device according to the present embodiment, cut in a direction perpendicular to the optical axis and viewed from above.

[0043] Figure 7 It is an exploded perspective view of the lens driving device according to the present embodiment.

[0044] Figure 8 It is from Figure 7 Exploded perspective views of the lens driving device according to the present embodiment viewed from different directions.

[0045] Fig. 9 1 is a perspective view of the lens driving device according to the present embodiment with the cover omitted.

[0046] Fig.10 : is a perspective view showing a fixing unit and related configurations of the lens driving device according to the present embodiment.

[0047] Fig.11 : is a perspective view showing a moving unit and related configuration of the lens driving device according to the present embodiment.

[0048] Fig.12It is shown from Fig.11 A perspective view of a moving unit and related configuration of a lens driving device viewed from different directions.

[0049] Fig.13 It is shown from Fig.11 and Fig.12 Bottom view of the moving unit and related configuration of the lens driving device observed from different directions.

[0050] Fig.14 : is a perspective view showing an AF moving unit and related configurations of the lens driving device according to the present embodiment.

[0051] Fig.15 It is shown from Fig.14 A perspective view of the AF moving unit and related configuration of the lens driving device viewed from different directions.

[0052] Fig.16 is a perspective view showing an OIS moving unit and related configurations of the lens driving device according to the present embodiment.

[0053] Fig.17 It is shown from Fig.16 A perspective view of an OIS moving unit and related configurations of a lens driving device viewed from different directions.

[0054] Fig.18 : is a perspective view showing an OIS-x moving unit and related configurations of the lens driving device according to the present embodiment.

[0055] Fig.19 It is shown from Fig.18 A perspective view of the OIS-x moving unit and related configuration of the lens driving device viewed from different directions.

[0056] Fig. 20 : is a perspective view showing an OIS-y moving unit and related configurations of the lens driving device according to the present embodiment.

[0057] Fig.21 : is a bottom view showing a driving unit and related configuration of the lens driving device according to the present embodiment.

[0058] Fig. 22 : is a cross-sectional view showing the AF guide sphere and related configuration of the lens driving device according to the present embodiment.

[0059] Fig.23 is a side view showing the AF guide ball and related configuration with the base omitted.

[0060] Fig.24 is a cross-sectional view showing the AF guide sphere and related configuration with the AF carrier omitted.

[0061] Fig.25 is a perspective view showing the AF guide sphere and related configurations with the AF carrier omitted.

[0062] Fig.26 It is shown from Fig.25 A perspective view of the AF guide ball and related configuration with the AF carrier omitted, viewed from different directions.

[0063] Figure 27 to Figure 29 FIG. 1 is a diagram for explaining autofocus driving of the lens driving device according to the present embodiment. Fig. 27 is a cross-sectional view showing the appearance of the AF moving unit in an initial state in which no current is applied to the AF coil. Fig.28 is a cross-sectional view showing an appearance that the moving unit moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.29 is a cross-sectional view showing an appearance that the moving unit moves downward in the optical axis direction when a reverse current is applied to the AF coil.

[0064] Figure 30 to Figure 32 It is a diagram for explaining the hand shake correction drive of the lens driving device according to the present embodiment. Fig.30 is a cross-sectional view showing the appearance of the OIS moving unit in an initial state in which no current is applied to the OIS-x coil and the OIS-y coil. Fig.31 is a cross-sectional view showing an appearance 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.32 : is a cross-sectional view showing an appearance that the OIS-y 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.

[0065] Fig.33 It is an exploded perspective view of the camera device according to this embodiment.

[0066] Fig.34 It is a perspective view of the optical device according to this embodiment.

[0067] Fig.35 is a perspective view of an optical device according to a modified embodiment. DETAILED DESCRIPTION

[0068] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0069] 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.

[0070] 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.

[0071] In addition, the terms used in this specification are for describing the embodiments and are not intended to limit the present invention.

[0072] 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.

[0073] In addition, when 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 a component from other components, and these terms do not limit the nature, order, or sequence of the components.

[0074] 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.

[0075] In addition, when described as being formed or disposed “on” or “below” each component, “on” or “below” means 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 “below”, it may include not only a meaning in an upward direction relative to a component, but also a meaning in a downward direction relative to a component.

[0076] The term “optical axis” (see Fig.29 The “OA) direction” is defined as the optical axis direction of the lens and / or image sensor coupled to the lens driving device.

[0077] The "vertical direction" used hereinafter may be a direction parallel to or the same as the optical axis direction. The vertical direction may correspond to the "z-axis direction". The "horizontal direction" used 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".

[0078] 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.

[0079] 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.

[0080] Hereinafter, any one of the “AF mobile unit 200,” the “OIS-x mobile unit 300,” and the “OIS-y mobile unit 400” may be referred to as a “first mobile unit,” another mobile unit may be referred to as a “second mobile unit,” and yet another mobile unit may be referred to as a “third mobile unit.”

[0081] Hereinafter, any one of the “AF driving unit 500”, the “OIS-x driving unit 600” and the “OIS-y driving unit 700” may be referred to as a “first driving unit”, another driving unit may be referred to as a “second driving unit”, and yet another driving unit may be referred to as a “third driving unit”.

[0082] Hereinafter, any one of “AF magnet 510 ,” “OIS-x magnet 610 ,” “OIS-y magnet 710 ,” and “magnet 910 ” may be referred to as a “first magnet,” another magnet may be referred to as a “second magnet,” and yet another magnet may be referred to as a “fourth magnet.”

[0083] Hereinafter, any one of the “AF coil 520 ,” the “OIS-x coil 620 ,” and the “OIS-y coil 720 ” may be referred to as a “first coil,” another coil may be referred to as a “second coil,” and yet another coil may be referred to as a “third coil.”

[0084] Hereinafter, one of the “external substrate 860 ” and the “internal substrate 870 ” may be referred to as a “first substrate”, and the other substrate may be referred to as a “second substrate”.

[0085] Hereinafter, one guide sphere among the “AF guide sphere 810”, the “OIS-x guide sphere 820” and the “OIS-y guide sphere 830” may be referred to as the “first sphere”, another guide sphere may be referred to as the “second sphere”, and yet another guide sphere may be referred to as the “third sphere”.

[0086] Hereinafter, one sensor among the “AF sensor 530 ,” the “OIS-x sensor 630 ,” and the “OIS-y sensor 730 ” may be referred to as a “first sensor,” another sensor may be referred to as a “second sensor,” and yet another sensor may be referred to as a “third sensor.”

[0087] Hereinafter, any one of the “AF yoke 540”, “OIS-x yoke 640”, “OIS-y yoke 740”, “yoke 915”, “fork 920” and “yoke 950” may be referred to as a “first yoke”, another yoke may be referred to as a “second yoke”, yet another yoke may be referred to as a “third yoke”, yet another yoke may be referred to as a “fourth yoke”, yet another yoke may be referred to as a “fifth yoke”, and yet another yoke may be referred to as a “sixth yoke”.

[0088] Hereinafter, the “AF carrier 210 ” may be referred to as a “housing”.

[0089] Hereinafter, the “OIS-x carrier 310 ” may be referred to as a “guide frame”.

[0090] Hereinafter, the “OIS-y carrier 410 ” may be referred to as a “bobbin”.

[0091] Hereinafter, the configuration of a lens driving device according to the present embodiment is described with reference to the drawings.

[0092] Figure 1 is a conceptual diagram of a lens driving device according to the present embodiment; Figure 2 is a perspective view of a lens driving device according to the present embodiment; 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 It is along Figure 2 A cross-sectional view taken along line CC; Figure 6 is a cross-sectional view of the lens driving device according to the present embodiment, cut in a direction perpendicular to the optical axis and viewed from above; Figure 7 is an exploded perspective view of the lens driving device according to the present embodiment; Figure 8 It is from Figure 7 Exploded perspective views of the lens driving device according to the present embodiment viewed from different directions; Fig. 9 is a perspective view of the lens driving device according to the present embodiment with the cover omitted; Fig.10 is a perspective view showing a fixing unit and related configurations of the lens driving device according to the present embodiment; Fig.11 is a perspective view showing a moving unit and related configuration of a lens driving device according to the present embodiment; Fig.12 It is shown from Fig.11 A perspective view of a moving unit and related configuration of a lens driving device observed from different directions; Fig.13 It is shown from Fig.11 and Fig.12 Bottom view of the moving unit and related structures of the lens driving device observed from different directions; Fig.14 is a perspective view showing an AF moving unit and related configuration of the lens driving device according to the present embodiment; Fig.15 It is shown from Fig.14 A perspective view of the configuration of the AF moving unit and the lens driving device as viewed from different directions; Fig.16 is a perspective view showing an OIS moving unit and related configurations of a lens driving device according to the present embodiment; Fig.17 It is shown from Fig.16 A perspective view of an OIS moving unit and related configurations of a lens driving device observed from different directions; Fig.18 is a perspective view showing an OIS-x moving unit and related configurations of a lens driving device according to the present embodiment; Fig.19 It is shown from Fig.18 A perspective view of an OIS-x moving unit and related configurations of a lens driving device viewed from different directions; Fig. 20 is a perspective view showing an OIS-y moving unit and related configurations of a lens driving device according to the present embodiment; Fig.21 is a bottom view showing a driving unit and related configuration of the lens driving device according to the present embodiment; Fig. 22 is a cross-sectional view showing an AF guide sphere and related configuration of the lens driving device according to the present embodiment; Fig.23 is a side view showing the AF guide ball and related configuration with the base omitted;

[0093] Fig.24 is a cross-sectional view showing an AF guide sphere and related configurations with the AF carrier omitted;

[0094] Fig.25 is a perspective view showing an AF guide spherical member and related configurations with the AF carrier omitted; Fig.26 It is shown from Fig.25 A perspective view of the AF guide ball and related configuration with the AF carrier omitted, viewed from different directions.

[0095] 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.

[0096] The lens driving device 10 may include a fixing unit 100. The fixing unit 100 may be a portion that is relatively fixed when the moving unit moves. The moving unit may move relative to the fixing unit 100.

[0097] 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 AF carrier 210. The base 110 may be disposed below the OIS-x carrier 310. The base 110 may be disposed below the OIS-y carrier 410. The base 110 may be coupled to the cover 120. The AF carrier 210, the OIS-x carrier 310, and the OIS-y carrier 410 may be disposed on the base 110. The AF carrier 210, the OIS-x carrier 310, and the OIS-y carrier 410 may be disposed on a lower plate portion 111 of the base 110. The AF carrier 210, the OIS-x carrier 310, and the OIS-y carrier 410 may be disposed inside the base 110. The AF carrier 210 , the OIS-x carrier 310 , and the OIS-y carrier 410 may be disposed inside the sidewall portion 112 of the base 110 .

[0098] The base 110 may include a lower plate portion 111. The base 110 may include a side wall portion 112. The side wall portion 112 may be a "side portion". The side wall portion 112 may be a "side plate". The side wall portion 112 may be a "side wall". The side wall portion 112 of the base 110 may extend from the upper surface of the lower plate portion 111.

[0099] The side wall portion 112 of the base 110 may include a plurality of side walls. The side wall portion 112 of the base 110 may include four side walls. The side wall portion 112 of the base 110 may include a first side wall to a fourth side wall. The side wall portion 112 of the base 110 may include a first side wall and a second side wall disposed opposite to each other and a third side wall and a fourth side wall disposed opposite to each other. At this time, the AF magnet 510 may be disposed on a first side plate of the base 110. The OIS-x magnet 610 may be disposed at a position corresponding to the third side plate of the base 110. The OIS-y magnet 710 may be disposed at a position corresponding to the second side plate of the base 110.

[0100] The base 110 may include a groove 113. The groove 113 may be an "AF guide ball accommodating groove". The AF guide ball 810 may be disposed in the groove 113. The groove 113 may be in direct contact with the AF guide ball 810. The groove 113 may be disposed in the optical axis direction. The groove 113 may include a plurality of grooves. The groove 113 may include two grooves. The two grooves may be disposed parallel to each other. The groove 113 may include a first groove that contacts the AF guide ball 810 at two points, and a second groove that contacts the AF guide ball 810 at one point. In a modified embodiment, both the first groove and the second groove may contact the AF guide ball 810 at two points.

[0101] The base 110 may include a protruding portion 114. The protruding portion 114 may protrude outward. The connection portion 712 of the external substrate 710 may be disposed above and below the protruding portion 114. A groove may be formed in the protruding portion 114 so as not to interfere even when the connection portion 712 of the external substrate 710 moves.

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

[0103] 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 in the base 110. 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 AF carrier 210 therein. The cover 120 may accommodate the OIS-x carrier 310 and the OIS-y carrier 410 therein. The cover 120 may be a shielding member. The cover 120 may be a shielding cover.

[0104] The cover 120 may include an upper plate 121. The upper plate 121 may be disposed on the moving unit. The upward movement of the moving unit may be restricted by the moving unit contacting the upper plate 121. The upper plate 121 may include a hole through which light passes.

[0105] The cover 120 may include a side panel 122. The side panel 122 may extend from the upper panel 121. The side panel 122 may be disposed in the base 110. The side panel 122 may be disposed on a step portion protruding from a lower end portion of an outer surface of the base 110. The side panel 122 may include a plurality of side panels. The side panel 122 may include four side panels. The side panel 122 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.

[0106] 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 on 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 lens may be coupled to the moving unit.

[0107] The lens driving device 10 may include an AF moving unit 200. The moving unit may include the AF moving unit 200. The AF moving unit 200 may be disposed in the fixed unit 100. The AF moving unit 200 may be disposed inside the fixed unit 100. The AF moving unit 200 may be disposed on the fixed unit 100. The AF moving unit 200 may be disposed between the fixed unit 100 and the OIS moving unit. The AF moving unit 200 may be movably disposed in the fixed unit 100. The AF moving unit 200 may be moved relative to the fixed unit 100 along the optical axis direction by the AF driving unit 500. The AF moving unit 200 may move during AF driving.

[0108] The lens driving device 10 may include an AF carrier 210. The AF moving unit 200 may include the AF carrier 210. The AF carrier 210 may be an "AF holder". The AF carrier 210 may be a "housing". The AF carrier 210 may be disposed inside the base 110. The AF carrier 210 may be disposed on the base 110. The AF carrier 210 may be disposed inside the cover 120. The AF carrier 210 may be disposed between the base 110 and the OIS-x carrier 310. The AF carrier 210 may be disposed between the base 110 and the OIS-y carrier 410. The AF carrier 210 may be disposed movably in the optical axis direction.

[0109] The AF carrier 210 may include a groove 211. The retainer member 220 may include a groove 211. The groove 211 may be an "AF guide ball accommodating groove". The AF guide ball 810 may be a groove in the groove 211. The groove 211 may be in direct contact with the AF guide ball 810. The groove 211 may be a groove along the optical axis direction. The groove 211 may guide the AF guide ball 810 to move in the optical axis direction. The groove 211 may include a plurality of grooves. The groove 211 may include two grooves. The two grooves may be grooves parallel to each other. The groove 211 may include a first groove that contacts the AF guide ball 810 at two points and a second groove that contacts the AF guide ball 810 at one point. In a modified embodiment, both the first groove and the second groove may contact the AF guide ball 810 at two points.

[0110] The AF carrier 210 may include a groove 212. The groove 212 may be an "OIS-x guide ball accommodating groove". The groove 212 may be formed on a side wall of the AF carrier 210. The groove 212 may be formed on an inner surface of a side wall of the AF carrier 210. The groove 212 may be formed on an inner surface of the AF carrier 210. The groove 212 may be a groove along the x-axis direction. The OIS-x guide ball 820 may be a groove in the groove 212. The groove 212 may guide the OIS-x guide ball 820 to move in the x-axis direction. The groove 212 may be in direct contact with the OIS-x guide ball 820. The groove 212 may include a plurality of grooves. The groove 212 may include four grooves.

[0111] The AF carrier 210 may include a protrusion 213. The protrusion 213 may be formed on an outer side surface of the AF carrier 210. The protrusion 213 may protrude outward from the AF carrier 210. The connection portion 862 of the external substrate 860 may be a groove on the upper and lower surfaces of the protrusion 213.

[0112] Hereinafter, one of the “groove 211 ” and the “groove 212 ” of the AF carrier 210 may be referred to as a “first groove”, and the other groove may be referred to as a “second groove”.

[0113] The lens driving device 10 may include an OIS moving unit. The moving unit may include an OIS moving unit. The OIS moving unit may be disposed in the fixed unit 100. The OIS moving unit may be disposed inside the fixed unit 100. The OIS moving unit may be disposed on the fixed unit 100. The OIS moving unit may be disposed inside the fixed unit 200. The OIS moving unit may be disposed inside the AF moving unit 200. The OIS moving unit may be movably disposed. The OIS moving unit may be moved relative to the fixed unit 100 and the AF moving unit 200 in a direction perpendicular to the optical axis by the OIS driving unit. The OIS moving unit may move during OIS driving.

[0114] The lens driving device 10 may include an OIS-x moving unit 300. The OIS moving unit may include the OIS-x moving unit 300. The OIS-x moving unit 300 may be disposed in the fixed unit 100. The OIS-x moving unit 300 may be disposed inside the fixed unit 100. The OIS-x moving unit 300 may be disposed on the fixed unit 100. The OIS-x moving unit 300 may be disposed inside the AF moving unit 200. The OIS-x moving unit 300 may be disposed between the fixed unit 100 and the OIS moving unit 400. The OIS-x moving unit 300 may be disposed between the fixed unit 100 and the OIS moving unit 400. The OIS-x moving unit 300 may be disposed between the AF moving unit 200 and the OIS moving unit 400. The OIS-x moving unit 300 may be movably disposed. The OIS-x moving unit 300 may be moved relative to the fixed unit 100 and the AF moving unit 200 in the x-axis direction perpendicular to the optical axis by the OIS-x driving unit 600. The OIS-x moving unit 300 may move during OIS driving.

[0115] The lens driving device 10 may include an OIS-x carrier 310. The OIS-x moving unit 300 may include an OIS-x carrier 310. The OIS-x carrier 310 may be an OIS-x holder. The OIS-x carrier 310 may be disposed inside the AF carrier 210. The OIS-x carrier 310 may be disposed inside the base 110. The OIS-x carrier 310 may be disposed on the base 110. The OIS-x carrier 310 may be disposed inside the cover 140. The OIS-x carrier 310 may be disposed between the base 110 and the OIS-y carrier 410. The OIS-x carrier 310 may be disposed between the AF carrier 210 and the OIS-y carrier 410. The OIS-x carrier 310 may be movably disposed in the x-axis direction perpendicular to the optical axis.

[0116] The OIS-x carrier 310 may include a groove 311. The groove 311 may be an "OIS-x guide ball accommodating groove". The OIS-x guide ball 820 may be disposed in the groove 311. The groove 311 may be in direct contact with the OIS-x guide ball 820. The groove 311 may be disposed in a direction perpendicular to the optical axis. The groove 311 may be along the x-axis direction. The groove 311 may guide the OIS-x guide ball 820 to move in the x-axis direction. The groove 311 may include a plurality of grooves. The groove 311 may include four grooves. The groove 311 may include a first groove that contacts the OIS-x guide ball 820 at two points, and a second groove that contacts the OIS-x guide ball 820 at one point. In a modified embodiment, both the first groove and the second groove may contact the OIS-x guide ball 820 at two points.

[0117] The OIS-x carrier 310 may include a groove 312. The groove 312 may be an "OIS-y guide ball accommodating groove". The OIS-y guide ball 830 may be disposed in the groove 312. The groove 312 may be in direct contact with the OIS-y guide ball 830. The groove 312 may be disposed in a direction perpendicular to the optical axis. The groove 312 may be disposed along the y-axis direction. The groove 312 may movably guide the OIS-y guide ball 830 in the y-axis direction. The groove 312 may include a plurality of grooves. The groove 312 may include four grooves. The groove 312 may include a first groove that contacts the OIS-y guide ball 830 at two points, and a second groove that contacts the OIS-y guide ball 830 at one point. In a modified embodiment, both the first groove and the second groove may contact the OIS-y guide ball 830 at two points.

[0118] The OIS-x carrier 310 may include a groove. The groove may be a “magnet receiving groove”. The groove may be formed on the outer side surface of the OIS-x carrier 310. The OIS-x magnet 610 may be disposed in the groove. The groove may be formed in a shape corresponding to the OIS-x magnet 610.

[0119] Hereinafter, one groove among the “groove 311”, “groove 312” and “magnet accommodating groove” of the OIS-x carrier 310 may be referred to as a “first groove”, another groove may be referred to as a “second groove”, and yet another groove may be referred to as a “third groove”.

[0120] The lens driving device 10 may include an OIS-y moving unit 400. The OIS moving unit may include the OIS-y moving unit 400. The OIS-y moving unit 400 may be disposed in the fixed unit 100. The OIS-y moving unit 400 may be disposed inside the fixed unit 100. The OIS-y moving unit 400 may be disposed on the fixed unit 100. The OIS-y moving unit 400 may be disposed inside the AF moving unit 200. The OIS-y moving unit 400 may be disposed inside the OIS-x moving unit 300. The OIS-y moving unit 400 may be movably disposed. The OIS-y moving unit 400 may be moved in the y-axis direction perpendicular to the optical axis and the x-axis relative to the fixed unit 100, the AF moving unit 200, and the OIS-x moving unit 300 by the OIS-y driving unit 700. The OIS-y moving unit 400 may move during OIS driving.

[0121] The lens driving device 10 may include an OIS-y carrier 410. The OIS-y moving unit 400 may include an OIS-y carrier 410. The OIS-y carrier 410 may be a "bobbin". The OIS-y carrier 410 may be an "OIS-y holder". The OIS-y carrier 410 may be disposed inside the OIS-x carrier 310. The OIS-y carrier 410 may be disposed inside the AF carrier 210. The OIS-y carrier 410 may be disposed inside the base 110. The OIS-y carrier 410 may be disposed on the base 110. The OIS-y carrier 410 may be disposed inside the cover 140. The OIS-y carrier 410 may be movably disposed in the y-axis direction perpendicular to the optical axis and the x-axis.

[0122] The OIS-y carrier 410 may include a groove 411. The groove 411 may be an "OIS-y guide ball accommodating groove". The OIS-y guide ball 830 may be disposed in the groove 411. The groove 411 may be in direct contact with the OIS-y guide ball 830. The groove 411 may be disposed in a direction perpendicular to the optical axis. The groove 411 may be disposed along the y-axis direction. The groove 411 may movably guide the OIS-y guide ball 830 in the y-axis direction. The groove 411 may include a plurality of grooves. The groove 411 may include four grooves. The groove 411 may include a first groove that contacts the OIS-y guide ball 830 at two points, and a second groove that contacts the OIS-y guide ball 830 at one point. In a modified embodiment, both the first groove and the second groove may contact the OIS-y guide ball 830 at two points.

[0123] The OIS-y carrier 410 may include a groove. The groove may be a "magnet receiving groove". The groove may be formed on the outer side surface of the OIS-y carrier 410. The OIS-y magnet 710 may be disposed in the groove. The groove may be formed in a shape corresponding to the OIS-y magnet 710.

[0124] Hereinafter, one groove among the “groove 411 ” and the “magnet accommodating groove” of the OIS-y carrier 410 may be referred to as a “first groove”, and the other groove may be referred to as a “second groove”.

[0125] The lens driving device 10 may include a driving unit. The driving unit may move the moving unit relative to the fixed unit 100. The driving unit may include an AF driving unit 500. The driving unit may include an OIS driving unit. The driving unit may include an OIS-x driving unit 600. The driving unit may include an OIS-y driving unit 700. The driving unit may include a coil and a magnet.

[0126] The lens driving device 10 may include an AF driving unit 500. The AF driving unit 500 may move the AF moving unit 200 along the optical axis direction. The AF driving unit 500 may move the AF carrier 210 along the optical axis direction. The AF driving unit 500 may move the AF carrier 210 along the optical axis direction by electromagnetic force. The AF driving unit 500 may include a coil and a magnet.

[0127] In the present embodiment, the AF carrier 210, the OIS-x carrier 310, and the OIS-y carrier 410 can move along the optical axis direction through the interaction between the AF coil 520 and the AF magnet 510. The AF coil 520, the AF carrier 210, the OIS-x carrier 310, and the OIS-y carrier 410 can move integrally along the optical axis direction. The AF coil 520, the OIS-x coil 620, the OIS-y coil 720, the AF carrier 210, the OIS-x carrier 310, and the OIS-y carrier 410 can move integrally along the optical axis direction.

[0128] The lens driving device 10 may include an AF magnet 510. The AF driving unit 500 may include an AF magnet 510. The AF magnet 510 may be an "AF magnet". The AF magnet 510 may be a permanent magnet. The AF magnet 510 may be disposed in the fixing unit 100. The AF magnet 510 may be disposed in the base 110. The AF magnet 510 may be disposed in the cover 120. The AF magnet 510 may be disposed in the side plate 122 of the cover 120. The AF magnet 510 may be disposed on the outer side surface of the base 110. The AF magnet 510 may be disposed on the inner side surface of the base 110. The AF magnet 510 may be disposed in the side wall portion 112 of the base 110. The AF magnet 510 may be fixed to the base 110. The AF magnet 510 may be coupled to the base 110. The AF magnet 510 may be attached to the base 110 with an adhesive. The AF magnet 510 may be disposed inside the cover 120. The AF magnet 510 may interact with the AF coil 520. The AF magnet 510 may electromagnetically interact with the AF coil 520. The AF magnet 510 may be disposed at a position corresponding to the AF coil 520. The AF magnet 510 and the AF coil 520 may face each other. The AF magnet 510 may face the AF coil 520. The AF magnet 510 may overlap with the AF coil 520 in a direction perpendicular to the optical axis. The AF magnet 510 may overlap with the AF coil 520 in the x-axis direction.

[0129] The AF magnet 510 may be a quadrupole magnet. The AF magnet 510 may include a quadrupole magnetized magnet. The AF magnet 510 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 in a vertical direction. A neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0130] The lens driving device 10 may include an AF coil 520. The AF driving unit 500 may include an AF coil 520. The AF coil 520 may interact with the AF magnet 510. The AF coil 520 and the AF magnet 510 may face each other. The AF coil 520 may face the AF magnet 510. The AF coil 520 may be disposed at a position corresponding to the AF magnet 510. The AF coil 520 may overlap with the AF magnet 510 in a direction perpendicular to the optical axis. The AF coil 520 may be disposed on an inner substrate 720. The AF coil 520 may be disposed in the AF carrier 210. The AF coil 520 may be disposed in the AF carrier 210 through the inner substrate 720. The AF coil 520 may move integrally with the AF carrier 210.

[0131] In the present embodiment, the AF coil 520 may be movable in the optical axis direction. The AF coil 520 may be movable in the optical axis direction by interaction with the AF magnet 510. The AF coil 520 may be movable integrally with the AF moving unit 200. The AF coil 520 may be movable in the optical axis direction together with the AF moving unit 200. During the AF driving process, the AF coil 520 may be moved in the optical axis direction together with the AF moving unit 200. The AF coil 520 may be disposed in the AF moving unit 200. The AF coil 520 may be fixed to the AF moving unit 200. The AF coil 520 may be coupled to the AF moving unit 200.

[0132] The lens driving device 10 may include an AF sensor 530. The AF driving unit 500 may include the AF sensor 530. The AF sensor 530 may be a Hall sensor. The AF sensor 530 may be disposed in the inner substrate 720. The AF sensor 530 may detect the AF magnet 510. The AF sensor 530 may detect the movement of the AF magnet 510. The movement amount or position of the AF magnet 510 detected by the AF sensor 530 may be used for feedback of auto focus driving. The AF sensor 530 may be disposed in the AF moving unit 200. The AF sensor 530 may be disposed in the AF carrier 210. The AF sensor 530 may be disposed in the AF carrier 210 through the inner substrate 720. The AF sensor 530 may move together with the AF moving unit 200.

[0133] The AF sensor 530 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 520. The driver IC may provide current to the AF coil 520.

[0134] The AF sensor 530 may be disposed inside the AF coil 520. The AF sensor 530 may overlap with a neutral portion of the AF magnet 510 in a direction perpendicular to the optical axis. In a modified embodiment, the AF sensor 530 may be disposed outside the AF coil 520.

[0135] The lens driving device 10 may include an AF yoke 540. The AF yoke 540 may be arranged corresponding to the AF magnet 510. The AF yoke 540 may be arranged in the AF magnet 510. The AF yoke 540 may be arranged between the AF magnet 510 and the side plate 122 of the cover 120. The AF yoke 540 may be arranged on the outer surface of the AF magnet 510. The inner surface of the AF magnet 510 may face the AF coil 520. Through this, the AF yoke 540 can minimize the leakage magnetic flux of the AF magnet 510 and increase the electromagnetic interaction force between the AF magnet 510 and the AF coil 520.

[0136] The lens driving device 10 may include an OIS driving unit. The OIS driving unit may move the OIS moving unit in a direction perpendicular to the optical axis direction. The OIS driving unit may move the OIS-x carrier 310 and the OIS-y carrier 410 in a direction perpendicular to the optical axis. The OIS driving unit may move the OIS-x carrier 310 and the OIS-y carrier 410 in a direction perpendicular to the optical axis by electromagnetic force. The OIS driving unit may include a magnet and a coil.

[0137] The lens driving device 10 may include an OIS-x driving unit 600. The OIS driving unit may include the OIS-x driving unit 600. The OIS-x driving unit 600 may enable the OIS-x moving unit 300 to move in the x-axis direction perpendicular to the optical axis direction. The OIS-x driving unit 600 may enable the OIS-x bearing 310 to move in the x-axis direction. The OIS-x driving unit 600 may enable the OIS-x bearing 310 and the OIS-y bearing 410 to move in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit 600 may use electromagnetic force to move the OIS-x bearing 310 and the OIS-y bearing 410 in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit 600 may include a coil and a magnet.

[0138] In this embodiment, the OIS-x magnet 610 and the OIS-x coil 620 can move the OIS moving unit in the x-axis direction perpendicular to the optical axis direction. Through the interaction between the OIS-x coil 620 and the OIS-x magnet 610, the OIS-x carrier 310 and the OIS-y carrier 410 can move in the x-axis direction perpendicular to the optical axis direction. The OIS-x magnet 610, the OIS-x carrier 310 and the OIS-y carrier 410 can move integrally in the x-axis direction.

[0139] The lens driving device 10 may include an OIS-x magnet 610. The OIS driving unit may include an OIS-x magnet 610. The OIS-x magnet 610 may be an “OIS-x magnet”. The OIS-x magnet 610 may be a permanent magnet. The OIS-x magnet 610 may be disposed in the OIS moving unit. The OIS-x magnet 610 may be spaced apart from the AF magnet 510. The OIS-x magnet 610 may be disposed in the OIS-x moving unit 300. The OIS-x magnet 610 may be disposed in the OIS-x carrier 310. The OIS-x magnet 610 may be disposed on an outer side surface of the OIS-x carrier 310. The OIS-x magnet 610 may be fixed to the OIS-x carrier 310. The OIS-x magnet 610 may be coupled to the OIS-x carrier 310. The OIS-x magnet 610 may be attached to the OIS-x carrier 310 with an adhesive. The OIS-x magnet 610 may be disposed inside the cover 120. The OIS-x magnet 610 may interact with the OIS-x coil 620. The OIS-x magnet 610 may electromagnetically interact with the OIS-x coil 620. The OIS-x magnet 610 may be disposed at a position corresponding to the OIS-x coil 620. The OIS-x magnet 610 and the OIS-x coil 620 may face each other. The OIS-x magnet 610 may face the OIS-x coil 620. The OIS-x magnet 610 may overlap the OIS-x coil 620 in a direction perpendicular to the optical axis. The OIS-x magnet 610 may overlap the OIS-x coil 620 in the y-axis direction. The OIS-x magnet 610 may move in the x-axis direction.

[0140] The OIS-x magnet 610 may be a quadrupole magnet. The OIS-x magnet 610 may include a quadrupole magnetized magnet. The OIS-x magnet 610 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 horizontal direction. The first magnet portion and the second magnet portion may be spaced apart in a horizontal direction. The neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0141] The lens driving device 10 may include an OIS-x coil 620. The OIS driving unit may include an OIS-x coil 620. The OIS-x coil 620 may interact with the OIS-x magnet 610. The OIS-x coil 620 may move the OIS-x magnet 610 in the x-axis direction perpendicular to the optical axis. The OIS-x coil 620 may move the OIS-x magnet 610 in the x-axis direction by interacting with the OIS-x magnet 610. The OIS-x coil 620 and the OIS-x magnet 610 may face each other. The OIS-x coil 620 may face the OIS-x magnet 610. The OIS-x coil 620 may be disposed at a position corresponding to the OIS-x magnet 610. The OIS-x coil 620 may overlap the OIS-x magnet 610 in a direction perpendicular to the optical axis. The OIS-x coil 620 may overlap the OIS-x magnet 610 in the y-axis direction. The OIS-x coil 620 may be disposed in the inner substrate 720. The OIS-x coil 620 may be disposed in the AF carrier 210. The OIS-x coil 620 may be disposed in the AF carrier 210 through the inner substrate 720. The OIS-x coil 620 may move integrally with the AF moving unit 200.

[0142] In the present embodiment, the OIS-x coil 620 may move together with the AF moving unit 200. The OIS-x coil 620 may move along the optical axis direction together with the AF moving unit 200. During the AF driving process, the OIS-x coil 620 may move along the optical axis direction together with the AF moving unit 200. The OIS-x coil 620 may be disposed in the AF moving unit 200. The OIS-x coil 620 may be fixed to the AF moving unit 200. The OIS-x coil 620 may be coupled to the AF moving unit 200.

[0143] The lens driving device 10 may include an OIS-x sensor 630. The OIS driving unit may include the OIS-x sensor 630. The OIS-x sensor 630 may be disposed in the inner substrate 720. The OIS-x sensor 630 may be disposed in the AF carrier 210. The OIS-x sensor 630 may be disposed in the OIS moving unit 200. The OIS-x sensor 630 may include a Hall sensor. The OIS-x sensor 630 may detect the OIS-x magnet 610. The OIS-x sensor 630 may detect the magnetic force of the OIS-x magnet 610. The OIS-x sensor 630 may be disposed at the lower side of the OIS magnet 520. The OIS-x sensor 630 may overlap with the OIS magnet 520 in the optical axis direction. In a modified embodiment, the OIS-x sensor 630 may be disposed inside the OIS-x coil 620. At this time, the OIS-x sensor 630 may overlap with the OIS-x coil 620 in the optical axis direction. The OIS-x sensor 630 may face the OIS-x magnet 610. The OIS-x sensor 630 may be disposed at a position corresponding to the OIS-x magnet 610. The OIS-x sensor 630 may detect movement of the OIS-x magnet 610. The movement amount or position of the OIS-x magnet 610 detected by the OIS-x sensor 630 may be used for feedback of hand shake correction drive in the x-axis direction.

[0144] The lens driving device 10 may include an OIS-x yoke 640. The OIS-x yoke 640 may be disposed in the OIS-x magnet 610. The OIS-x yoke 640 may be disposed between the OIS-x magnet 610 and the OIS-x carrier 310. The OIS-x yoke 640 may prevent magnetic leakage of the OIS-x magnet 610 and enhance the interaction force with the OIS-x coil 620.

[0145] The lens driving device 10 may include an OIS-y driving unit 700. The OIS driving unit may include the OIS-y driving unit 700. The OIS-y driving unit 700 may enable the OIS-y moving unit 400 to move in the y-axis direction perpendicular to the optical axis direction and the x-axis direction. The OIS-y driving unit 700 may enable the OIS-y moving unit 400 to move in the y-axis direction perpendicular to the optical axis and the x-axis direction. The OIS-y driving unit 700 may enable the OIS-y bearing 410 to move in the y-axis direction perpendicular to the optical axis and the x-axis direction by electromagnetic force. The OIS-y driving unit 700 may include a coil and a magnet.

[0146] In the present embodiment, the OIS-y magnet 710 and the OIS-y coil 720 can move the OIS moving unit in the y-axis direction perpendicular to the optical axis direction and the x-axis direction. Through the interaction between the OIS-y coil 720 and the OIS-y magnet 710, the OIS-y carrier 410 can move in the y-axis direction perpendicular to both the optical axis direction and the x-axis direction. The OIS-y magnet 710 and the OIS-y carrier 410 can move integrally along the y-axis direction. The OIS-y magnet 710 can overlap with the AF magnet 510 in the x-axis direction.

[0147] The lens driving device 10 may include an OIS-y magnet 710. The OIS-y driving unit 700 may include an OIS-y magnet 710. The OIS-y magnet 710 may be an “OIS-y magnet”. The OIS-y magnet 710 may be a permanent magnet. The OIS-y magnet 520 may be disposed in the OIS moving unit. The OIS-y magnet 710 may be spaced apart from the OIS-x magnet 610. The OIS-y magnet 710 may be spaced apart from the AF magnet 510. The OIS-y magnet 710 may be disposed in the OIS-y moving unit 400. The OIS-y magnet 710 may be disposed in the OIS-y carrier 410. The OIS-y magnet 710 may be disposed on an outer side surface of the OIS-y carrier 410. The OIS-y magnet 710 may be fixed to the OIS-y carrier 410. The OIS-y magnet 710 may be coupled to the OIS-y carrier 410. The OIS-y magnet 710 may be attached to the OIS-y carrier 410 with an adhesive. The OIS-y magnet 710 may be disposed inside the cover 120. The OIS-y magnet 710 may interact with the OIS-y coil 720. The OIS-y magnet 710 may electromagnetically interact with the OIS-y coil 720. The OIS-y magnet 710 may be disposed at a position corresponding to the OIS-y coil 720. The OIS-y magnet 710 and the OIS-y coil 720 may face each other. The OIS-y magnet 710 may face the OIS-y coil 720. The OIS-y magnet 710 may overlap the OIS-y coil 720 in a direction perpendicular to the optical axis. The OIS-y magnet 710 may overlap the OIS-y coil 720 in the x-axis direction. The OIS-y magnet 710 may move in the y-axis direction.

[0148] The OIS-y magnet 710 may be a quadrupole magnet. The OIS-y magnet 710 may include a quadrupole magnetized magnet. The OIS-y magnet 710 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 horizontal direction. The first magnet portion and the second magnet portion may be spaced apart in a horizontal direction. The neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0149] The lens driving device 10 may include an OIS-y coil 720. The OIS-y driving unit 700 may include an OIS-y coil 720. The OIS-y coil 720 may interact with the OIS-y magnet 710. The OIS-y coil 720 may be disposed at an opposite side of the AF coil 520 relative to the optical axis. The OIS-y coil 720 may move the OIS-y magnet 710 in the y-axis direction perpendicular to the optical axis and the x-axis. The OIS-y coil 720 may move the OIS-y magnet 710 in the y-axis direction by interacting with the OIS-y magnet 710. The OIS-y coil 720 and the OIS-y magnet 710 may face each other. The OIS-y coil 720 may face the OIS-y magnet 710. The OIS-y coil 720 may be disposed at a position corresponding to the OIS-y magnet 710. The OIS-y coil 720 may overlap the OIS-y magnet 710 in a direction perpendicular to the optical axis. The OIS-y coil 720 may overlap the OIS-y magnet 710 in the x-axis direction. The OIS-y coil 720 may be disposed in the inner substrate 720. The OIS-y coil 720 may be disposed in the inner substrate 720. The OIS-y coil 720 may be disposed in the AF carrier 200. The OIS-y coil 720 may be disposed in the AF carrier 210 through the inner substrate 720. The OIS-y coil 720 may move integrally with the AF moving unit 200.

[0150] In the present embodiment, the OIS-y coil 720 may move together with the AF moving unit 200. The OIS-y coil 720 may move along the optical axis direction together with the AF moving unit 200. During the AF driving process, the OIS-y coil 720 may move along the optical axis direction together with the AF moving unit 200. The OIS-y coil 720 may be disposed in the AF moving unit 200. The OIS-y coil 720 may be fixed to the AF moving unit 200. The OIS-y coil 720 may be coupled to the AF moving unit 200.

[0151] The lens driving device 10 may include an OIS-y sensor 730. The OIS-y driving unit 700 may include an OIS-y sensor 730. The OIS-y sensor 730 may be disposed in the inner substrate 720. The OIS-y sensor 730 may be disposed in the AF carrier 210. The OIS-y sensor 730 may be disposed in the OIS moving unit 200. The OIS-y sensor 730 may include a Hall sensor. The OIS-y sensor 730 may detect the OIS-y magnet 710. The OIS-y sensor 730 may detect the magnetic force of the OIS-y magnet 710. The OIS-y sensor 730 may be disposed at the lower side of the OIS-y magnet 620. The OIS-y sensor 730 may overlap with the OIS-y magnet 620 in the optical axis direction. In a modified embodiment, the OIS-y sensor 730 may be disposed inside the OIS-y coil 720. At this time, the OIS-y sensor 730 may overlap with the OIS-y coil 720 in the optical axis direction. The OIS-y sensor 730 may face the OIS-y magnet 710. The OIS-y sensor 730 may be disposed at a position corresponding to the OIS-y magnet 710. The OIS-y sensor 730 may detect movement of the OIS-y magnet 710. The movement amount or position of the OIS-y magnet 710 detected by the OIS-y sensor 730 may be used for feedback of hand shake correction drive in the y-axis direction.

[0152] The lens driving device 10 may include an OIS-y yoke 740. The OIS-y yoke 740 may be disposed in the OIS-y magnet 710. The OIS-y yoke 740 may be disposed between the OIS-y magnet 710 and the OIS-y carrier 410. The OIS-y yoke 740 may prevent magnetic leakage of the OIS-y magnet 710 and enhance interaction with the OIS-y coil 720.

[0153] When viewed from above, the AF magnet 510, the AF coil 520, the OIS-y magnet 710, and the OIS-y coil 720 may be arranged in sequence on a virtual straight line. When viewed from above, the AF magnet 510, the AF coil 520, the OIS-y magnet 710, and the OIS-y coil 720 may be arranged in sequence on a virtual straight line. When viewed from above, the AF magnet 510, the AF coil 520, the OIS-y magnet 710, and the OIS-y coil 720 may be arranged in sequence. When viewed from above, the AF magnet 510, the AF coil 520, the OIS-y magnet 710, and the OIS-y coil 720 may be arranged in sequence. When viewed from above, the AF magnet 510, the AF coil 520, the OIS-y magnet 710, and the OIS-y coil 720 may be arranged in sequence in the x-axis direction. When viewed from above, the AF magnet 510, the AF coil 520, the OIS-y magnet 710, and the OIS-y coil 720 may overlap in the x-axis direction.

[0154] When viewed from above, the AF magnet 510, the AF coil 520, the OIS-y magnet 710, and the OIS-y coil 720 may be sequentially arranged on a first imaginary straight line parallel to the x-axis direction. When viewed from above, the AF magnet 510, the AF coil 520, the OIS-y magnet 710, and the OIS-y coil 720 may be sequentially arranged on a first imaginary straight line parallel to the x-axis direction. When viewed from above, the AF magnet 510, the AF coil 520, the OIS-y magnet 710, and the OIS-y coil 720 may be sequentially superimposed on a first imaginary straight line parallel to the x-axis direction.

[0155] When viewed from above, the AF magnet 510, the AF coil 520, the magnet 910, and the yoke 920 may be sequentially arranged on a virtual second straight line parallel to the x-axis direction. When viewed from above, the AF magnet 510, the AF coil 520, the magnet 910, and the yoke 920 may be sequentially arranged on a virtual second straight line parallel to the x-axis direction. When viewed from above, the AF magnet 510, the AF coil 520, the magnet 910, and the yoke 920 may overlap sequentially on a virtual second straight line parallel to the x-axis direction.

[0156] In this embodiment, the cover 120 may include a first side plate and a second side plate disposed opposite to each other, and a third side plate and a fourth side plate disposed opposite to each other. The AF drive unit 500 may be disposed at a position corresponding to the first side plate of the cover 120, the OIS-x drive unit 600 may be disposed at a position corresponding to the third side plate of the cover 120, and the OIS-y drive unit 700 may be disposed at a position corresponding to the second side plate of the cover 120.

[0157] The lens driving device 10 may include a guide member. The guide member may include a spherical member. 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.

[0158] The lens driving device 10 may include an AF guide ball 810. The AF guide ball 810 may guide the movement of the AF carrier 210 relative to the base 110 in the optical axis direction. The AF guide ball 810 may be disposed between the fixed unit 100 and the AF moving unit 200. The AF guide ball 810 may be disposed between the base 110 and the AF carrier 210. The AF guide ball 810 may be disposed between the base 110 and the AF carrier 210 along the x direction. The AF guide ball 810 may include a ball disposed in a groove 113 of the base 110. The AF guide ball 810 may include a ball disposed in a metal member 940. The AF guide ball 810 may be disposed in a groove 211 of the AF carrier 210. The AF guide ball 810 may have a spherical shape. The AF guide ball 810 may be formed of metal. Grease may be applied to the surface of the AF guide ball 810 .

[0159] The AF guide spherical member 810 may be disposed at a first corner of the base 110. The AF guide spherical member 810 may be disposed at a second corner of the base 110 opposite to the first corner. The AF guide spherical member 810 may be disposed at the first corner and the second corner of the base 110. The AF guide spherical member 810 may be disposed in two groups at each of the first corner and the second corner of the base 110. At this time, one group may include four spherical members. The two groups may be disposed on opposite sides of the pillar portion of the AF carrier 210.

[0160] The AF guide spherical member 810 may include a plurality of spherical members. The AF guide spherical member 810 may include eight spherical members. The eight spherical members may be arranged in two groups, each group having four spherical members on one side. The four spherical members may have different sizes. Two large spherical members may be arranged at the upper end and the lower end, and two small spherical members may be arranged between the two large spherical members. Four AF guide spherical members 810 may be arranged on one side of the AF magnet 510, and the remaining four AF guide spherical members 810 may be arranged on the other side of the AF magnet 510.

[0161] Two of the four groups of AF guide balls 810 may be in direct contact with the base 110 and the AF carrier 210 . The remaining two of the four groups of AF guide balls 810 may be in direct contact with the AF carrier 210 and the metal member 940 .

[0162] The lens driving device 10 may include an OIS-x guide sphere 820. The OIS-x guide sphere 820 may guide the movement of the OIS-x carrier 310 relative to the AF carrier 210 in the x-axis direction. The OIS-x guide sphere 820 may be disposed between the AF moving unit 200 and the OIS-x moving unit 300. The OIS-x guide sphere 820 may be disposed between the AF carrier 210 and the OIS-x carrier 310. The OIS-x guide sphere 820 may be disposed between the AF carrier 210 and the OIS-x carrier 310 in the y-axis direction. The entire area from the lower end to the upper end of the OIS-x guide sphere 820 may overlap with the AF carrier 210 and the OIS-x carrier 310 in the y-axis direction. The entire area of ​​the OIS-x guide sphere 820 may overlap with the AF carrier 210 and the OIS-x carrier 310 in the y-axis direction. The OIS-x guide sphere 820 may be disposed between the inner side surface of the AF carrier 210 and the outer side surface of the OIS-x carrier 310. When viewed from the outside of the OIS-x carrier 310, the OIS-x guide sphere 820 may overlap the OIS-x magnet 610 in a horizontal direction.

[0163] The OIS-x guide sphere 820 may be disposed in the groove 212 of the AF bearing 210. The OIS-x guide sphere 820 may be disposed in the groove 311 of the OIS-x bearing 310. The OIS-x guide sphere 820 may include a first sphere that contacts the AF bearing 210 and the OIS-x bearing 310 at four points, and a second sphere that contacts the AF bearing 210 and the OIS-x bearing 310 at three points. The OIS-x guide sphere 820 may have a spherical shape. The OIS-x guide sphere 820 may be formed of metal. Grease may be applied to the surface of the OIS-x guide sphere 820.

[0164] The OIS-x guide sphere 820 may include a plurality of spheres. The OIS-x guide sphere 820 may include four spheres. Two OIS-x guide spheres 820 may be disposed on one side of the OIS-x magnet 610, and the remaining two OIS-S guide spheres 820 may be disposed on the other side of the OIS-x magnet 610.

[0165] The lens driving device 10 may include an OIS-y guide sphere 830. The OIS-y guide sphere 830 may guide the movement of the OIS-y carrier 410 relative to the OIS-x carrier 310 in the y-axis direction. The OIS-y guide sphere 830 may be an extension between the OIS-x moving unit 300 and the OIS-y moving unit 400. The OIS-y guide sphere 830 may be an extension between the OIS-x carrier 310 and the OIS-y carrier 410. The OIS-y guide sphere 830 may be an extension between the OIS-x carrier 310 and the OIS-y carrier 410 in the x-axis direction. The entire area from the lower end to the upper end of the OIS-y guide sphere 830 may overlap with the OIS-x carrier 310 and the OIS-y carrier 410 in the x-axis direction. The OIS-y guide sphere 830 may be disposed between the inner surface of the OIS-x carrier 310 and the outer surface of the OIS-y carrier 410. The OIS-y guide sphere 830 may overlap the OIS-y magnet 710 in a horizontal direction when viewed from the outside of the OIS-y carrier 410. Here, the horizontal direction may be any direction perpendicular to the optical axis.

[0166] A portion of the OIS-y guide ball 830 may overlap the OIS-x carrier 310 in the y-axis direction. Another portion of the OIS-y guide ball 830 may overlap the OIS-y carrier 410 in the y-axis direction.

[0167] The OIS-y guide sphere 830 may be disposed in the groove 312 of the OIS-x carrier 310. The OIS-y guide sphere 830 may be disposed in the groove 411 of the OIS-y carrier 410. The OIS-y guide sphere 830 may include a first sphere that contacts the OIS-x carrier 310 and the OIS-y carrier 410 at four points, and a second sphere that contacts the OIS-x carrier 310 and the OIS-y carrier 410 at three points. The OIS-y guide sphere 830 may have a spherical shape. The OIS-y guide sphere 830 may be formed of metal. Grease may be applied to the surface of the OIS-y guide sphere 830.

[0168] The OIS-y guide sphere 830 may include a plurality of spheres. The OIS-y guide sphere 830 may include four spheres. Two OIS-y guide spheres 830 may be disposed on one side of the OIS-y magnet 710, and the remaining two OIS-y guide spheres 830 may be disposed on the other side of the OIS-y magnet 710.

[0169] The lens driving device 10 may include a substrate 860 and a substrate 870. The substrate 860 and the substrate 870 may include a flexible printed circuit board (FPCB). The substrate 860 and the substrate 870 may be electrically connected to the coil 520, the coil 620, and the coil 720. The substrate 860 and the substrate 870 may be electrically connected to the sensor 530, the sensor 6530, and the sensor 730.

[0170] The lens driving device 10 may include an external substrate 860. The external substrate 860 may be disposed in the base 110. The external substrate 860 may be electrically connected to the coils 520, 620, and 720. The external substrate 860 may be electrically connected to the sensors 530, 630, and 730. The external substrate 860 may connect the AF carrier 210 to the base 110. The external substrate 860 may elastically connect the AF carrier 210 to the base 110. The external substrate 860 may movably support the AF carrier 210 relative to the base 110. The external substrate 860 may guide the AF carrier 210 to move relative to the base 110 in the optical axis direction. The external substrate 860 may include a flexible substrate. The external substrate 860 may include a flexible printed circuit board (FPCB). The external substrate 860 may include an elastic portion. The external substrate 860 may include a member having elasticity. The external substrate 860 may include an elastic member. The external substrate 860 may be disposed in the fixing unit 100. The outer substrate 860 may include an outer portion 861 disposed in the fixing unit 100 , and a connection portion 862 extending from the outer portion 861 and coupled to the inner substrate 870 .

[0171] The outer substrate 860 may include an outer portion 861. The outer portion 861 may be disposed on the base 110. The outer portion 861 may be formed to surround the side surface of the base 110. The outer portion 861 may be disposed on three side surfaces of the base 110. The outer portion 861 may include two terminal portions. The two terminal portions may be disposed opposite to each other with respect to the optical axis. The terminal portion may include a terminal 862-1.

[0172] The outer substrate 860 may include a terminal 861-1. The outer portion 861 of the outer substrate 860 may include a terminal 861-1. The terminal 861-1 may be electrically connected to the terminal 862-1. The terminal 861-1 may be provided at the lower end of the base 110. The terminal 861-1 may be coupled to the printed circuit board 50. The terminal 861-1 may be coupled to the terminal of the printed circuit board 50 by solder. The terminal 861-1 may be coupled to the terminal of the printed circuit board 50 by a conductive member. The terminal 861-1 may be coupled to the terminal of the printed circuit board 50. The terminal 861-1 may be electrically connected to the terminal of the printed circuit board 50.

[0173] The outer substrate 860 may include a connecting portion 862. The connecting portion 862 may be an extension portion. The connecting portion 862 may be a leg portion. The connecting portion 862 may extend from the outer portion 861. At least a portion of the connecting portion 862 may move together with the AF carrier 210. The extension portion may extend from the outer portion 861. At least a portion of the extension portion may move together with the AF carrier 210. At least a portion of the connecting portion 862 may be disposed perpendicular to the optical axis direction. As a modified embodiment, at least a portion of the connecting portion 862 may be disposed parallel to the optical axis direction. The connecting portion 862 of the outer substrate 860 may be movably coupled to the inner substrate 870 so that the inner substrate 870 may move in the optical axis direction.

[0174] The connection portion 862 may include a plurality of connection portions. The connection portion 862 may include a first connection portion and a second connection portion. The second connection portion may be located below the first connection portion.

[0175] The outer substrate 860 may include a terminal 862-1. The connection portion 862 of the outer substrate 860 may include a terminal 862-1. The terminal 862-1 may be coupled to a terminal 871-1 of the inner substrate 870. The terminal 862-1 of the outer substrate 860 may be coupled to the terminal 871-1 of the inner substrate 870 by solder. The terminal 862-1 of the outer substrate 860 may be coupled to the terminal 871-1 of the inner substrate 870 by a conductive member. The terminal 862-1 of the outer substrate 860 may be connected to the terminal 871-1 of the inner substrate 870. The terminal 862-1 of the outer substrate 860 may be electrically connected to the terminal 871-1 of the inner substrate 870.

[0176] Hereinafter, any one of the “terminal 861 - 1 ” and the “terminal 862 - 1 ” of the external substrate 860 may be referred to as a “first terminal”, and the other may be referred to as a “second terminal”.

[0177] The lens driving device 10 may include an inner substrate 870. The inner substrate 870 may be electrically connected to the coil 520, the coil 620, and the coil 720. The inner substrate 870 may be electrically connected to the sensor 530, the sensor 630, and the sensor 730. The inner substrate 870 may be disposed in the AF moving unit 200. The inner substrate 870 may be disposed in the AF carrier 210. The inner substrate 870 may be fixed to the AF carrier 210. The inner substrate 870 may be coupled to the AF carrier 210. The inner substrate 870 may be attached to the AF carrier 210 with an adhesive. The inner substrate 870 may include a flexible substrate. The inner substrate 870 may include a flexible printed circuit board (FPCB). The inner substrate 870 may include an elastic portion. The inner substrate 870 may include an elastic member.

[0178] The inner base plate 870 may include a side plate portion 871. The side plate portion 871 may be an extension portion on the side surface of the AF carrier 210. The side plate portion 871 may be an extension portion on the outer side surface of the AF carrier 210. In another embodiment, the side plate portion 871 may be an extension portion on the inner surface of the AF carrier 210. The side plate portion 871 of the inner base plate 870 may include a plurality of portions. The side plate portion 871 may include a first portion to a fourth portion.

[0179] The inner substrate 870 may include a first portion. The first portion may be an extended portion in the AF carrier 210. The first portion may be an extended portion on a first side of the AF carrier 210. The AF coil 520 may be an extended portion in the first portion of the inner substrate 870. The AF sensor 530 may be an extended portion on the first portion of the inner substrate 870. The AF yoke 540 may be an extended portion on the first portion of the inner substrate 870.

[0180] The inner substrate 870 may include a second portion. The second portion may be disposed at an opposite side of the first portion. The second portion may be disposed in the AF carrier 200. The second portion may be disposed on a second side surface of the AF carrier 200. The OIS-y coil 720 may be disposed in the second portion of the inner substrate 870. The OIS-y sensor 730 may be disposed in the second portion of the inner substrate 870. In more detail, the OIS-y sensor 730 may be disposed on the curved lower plate portion 872 and disposed on the lower side of the second portion of the inner substrate 870. The OIS-y sensor 730 may be disposed on the upper surface of the lower plate portion 872.

[0181] The inner substrate 870 may include a third portion. The third portion may be disposed in the AF carrier 200. The third portion may be disposed on a third side surface of the AF carrier 200. The OIS-x coil 620 may be disposed at the third portion of the inner substrate 870. The OIS-x sensor 630 may be disposed in the third portion of the inner substrate 870. In more detail, the OIS-x sensor 630 may be disposed in a lower plate portion 872 that is curved and disposed on a lower side of the third portion of the inner substrate 870. The OIS-x sensor 630 may be disposed on an upper surface of the lower plate portion 872.

[0182] The inner substrate 870 may include a fourth portion. The fourth portion may be disposed at an opposite side of the third portion. The fourth portion may be disposed in the AF carrier 200. The fourth portion may be disposed on a fourth side surface of the AF carrier 200.

[0183] The inner substrate 870 may include a terminal 871-1. The terminal 871-1 may be disposed in a fourth portion of the inner substrate 870. The terminal 871-1 may be electrically connected to the coils 520, 620, and 720. The terminal 871-1 may be electrically connected to the sensors 530, 630, and 730.

[0184] The lens driving device may include an AF guide spheroid pressing member. The AF guide spheroid pressing member may pressurize the AF guide spheroid 810. The AF guide spheroid pressing member may keep the AF guide spheroid 810 in contact with the fixing unit 100 and the AF moving unit 200. The AF guide spheroid pressing member may keep the AF guide spheroid 810 in contact with the base 110 and the AF carrier 210.

[0185] The AF guide spherical body pressurizing member may include a pressurizing member. The pressurizing member may include an elastic member 930. The pressurizing member may include an attraction member. The pressurizing member may include a repulsion member.

[0186] The lens driving device may include an elastic member 930. The elastic member 930 may be a spring. The elastic member 930 may be a conical spring. The elastic member 930 may be disposed in the fixed unit 100. The elastic member 930 may press the AF guide spherical body 810 toward the AF moving unit 200. In a modified embodiment, the elastic member 930 may be disposed in the AF moving unit 200. At this time, the elastic member 930 may press the AF guide spherical body 810 toward the fixed unit 100. The elastic member 930 may be disposed in one of the fixed unit 100 and the AF moving unit 200 to press the AF guide spherical body 810 toward the other of the fixed unit 100 and the AF moving unit. The elastic member 930 may pressurize the metal member 940. The elastic member 930 may be disposed between the metal member 940 and the base 110. The elastic member 930 may be disposed between the AF guide spherical body 810 and the base 110. The elastic member 930 may be provided in the base 110. The elastic member 930 may pressurize the AF guide ball 810 toward the AF carrier 210. In this way, the AF guide ball 810 may be maintained in contact with the metal member 940 and the AF carrier 210.

[0187] The lens driving device may include a metal member 940. The metal member 940 may be disposed between the elastic member 930 and the AF guide spherical body 810. The metal member 940 may press the AF guide spherical body 810 toward the AF carrier 210 through the elastic member 930.

[0188] The lens driving device may include a cover 945. The cover 945 may be disposed above the AF guide spherical body 810. The cover 945 may overlap the AF guide spherical body 810 in the optical axis direction. The cover 945 may be disposed on the groove 113 of the base 110 and the groove 211 of the AF carrier 210 to prevent the AF guide spherical body 810 from being separated upward.

[0189] In a modified embodiment, the AF spheroid pressing member may include a yoke. The yoke may pressurize the first mobile unit 200 relative to the fixed unit 100. The yoke may contact the first mobile unit 200 relative to the fixed unit 100. The yoke may apply pressure to the first mobile unit 200 relative to the fixed unit 100. The yoke may be configured to apply an attractive force to the AF magnet 510. The yoke may be disposed in the inner substrate 870. The yoke may be disposed at a position corresponding to the AF magnet 510. The "yoke" of the modified embodiment may also be referred to as a "first yoke", "second yoke", etc. The yoke may be understood as a component of the first mobile unit 200. Alternatively, the yoke may be coupled to the first mobile unit 200 in a configuration separate from the first mobile unit 200.

[0190] The lens driving device may include an OIS-x guide sphere pressing member. The OIS-x guide sphere pressing member may pressurize the OIS-x guide sphere 820. The OIS-x guide sphere pressing member may allow the OIS-x guide sphere 820 to maintain a state in which the AF moving unit 200 is in contact with the OIS-x moving unit 300. The OIS-x guide sphere pressing member may allow the OIS-x guide sphere 820 to maintain a state in which the AF bearing 210 is in contact with the OIS-x bearing 310.

[0191] The lens driving device may include a yoke 950. The yoke 950 may be an "attraction yoke". The yoke 950 may be disposed at a position corresponding to the OIS-x magnet 610. An attraction force may be applied between the yoke 950 and the OIS-x magnet 610. The OIS-x guide spherical body 820 may maintain a state in which the AF carrier 210 is in contact with the OIS-x carrier 310 by the attraction force between the yoke 950 and the OIS-x magnet 610. The yoke 950 may be disposed in the AF carrier 210. The yoke 950 may move integrally with the AF carrier 210. The yoke 950 may be disposed in the inner substrate 870. The yoke 950 may be disposed on an outer surface of the inner substrate 870. The yoke 950 may be disposed at an opposite side of the OIS-x coil 620 of the inner substrate 870. The yoke 950 may press the OIS-x carrier 310 relative to the AF carrier 210. The yoke 950 may press the guide frame relative to the first moving unit 200. The yoke 950 may contact the OIS-x carrier 310 relative to the AF carrier 210. The yoke 950 may press the OIS-x carrier 310 toward the AF carrier 210. The yoke 950 may be understood as a component of the first moving unit 200. Alternatively, the yoke 950 may be coupled to the first moving unit 200 as a configuration separate from the first moving unit 200.

[0192] The lens driving device may include an OIS-y guide sphere pressing member. The OIS-y guide sphere pressing member may pressurize the OIS-y guide sphere 830. The OIS-y guide sphere pressing member may keep the OIS-y guide sphere 830 in a state where the OIS-x moving unit 300 is in contact with the OIS-y moving unit 400. The OIS-y guide sphere pressing member may keep the OIS-y guide sphere 830 in a state where the OIS-x carrier 310 is in contact with the OIS-y carrier 410.

[0193] The lens driving device may include a magnet 910. The magnet 910 may be an “attraction magnet”. The magnet 910 may be disposed in the OIS-y moving unit 400. The magnet 910 may be spaced apart from the OIS-y magnet 710. The magnet 910 may not interact with the OIS-y coil 720.

[0194] The lens driving device may include a yoke 915. The yoke 915 may be disposed at a position corresponding to the magnet 910. The yoke 915 may be disposed in the magnet 910. The yoke 915 may be disposed between the magnet 910 and the OIS-y carrier 410. The yoke 915 may be disposed at the inner surface of the magnet 910. The outer surface of the magnet 910 may face the yoke 920. In this way, the yoke 915 may minimize the leakage magnetic flux of the magnet 910 and increase the attraction between the magnet 910 and the yoke 920.

[0195] The lens driving device may include a yoke 920. The yoke 920 may be an "attraction yoke". The yoke 920 may be disposed at a position corresponding to the magnet 910. An attraction force may be applied between the yoke 920 and the magnet 910. The OIS-y guide spherical body 830 may maintain a state in which the OIS-x carrier 310 is in contact with the OIS-y carrier 410 by the attraction force between the yoke 920 and the magnet 910. The yoke 920 may be disposed on the OIS-x carrier 310. The yoke 920 may move integrally with the OIS-x carrier 310. The yoke 920 may be disposed in the OIS-x moving unit 300. The yoke 920 may be disposed in the OIS-x moving unit 300 so that the magnet 910 and the attraction force act thereon. The yoke 920 may press the OIS-y carrier 410 relative to the OIS-x carrier 310. The yoke 920 may press the guide frame relative to the bobbin. The yoke 920 may contact the OIS-y carrier 410 with respect to the OIS-x carrier 310. The yoke 920 may press the OIS-y carrier 410 toward the OIS-x carrier 310.

[0196] In a modified embodiment, the yoke 920 may bring the OIS-y carrier 410 into close contact with the AF carrier 210. The yoke 920 may bring the bobbin into close contact with the first moving unit 200. The yoke 920 may bring the OIS-y carrier 410 into close contact with the AF carrier 210. The yoke 920 may press the OIS-y carrier 410 toward the AF carrier 210. At this time, the yoke 920 may be understood as a component of the first moving unit 200. Alternatively, the yoke 920 may be coupled to the first moving unit 100 as a configuration separate from the first moving unit 200.

[0197] In this embodiment, when the OIS-x driving unit 600 moves the OIS-x moving unit 300 in the x-axis direction, the distance between the magnet 910 and the yoke 920 in the x-axis direction can be maintained. At this time, the distance between the OIS-y magnet 710 and the OIS-y coil 720 in the x-axis direction can be changed.

[0198] Hereinafter, auto focus (AF) driving of the lens driving device according to the present embodiment will be described with reference to the drawings.

[0199] Figure 27 to Figure 29 FIG. 1 is a diagram for explaining autofocus driving of the lens driving device according to the present embodiment. Fig. 27 is a cross-sectional view showing the appearance of the moving unit in an initial state in which no current is applied to the AF coil. Fig.28 is a cross-sectional view showing an appearance that the moving unit moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.29is a cross-sectional view showing an appearance that the moving unit moves downward in the optical axis direction when a reverse current is applied to the AF coil.

[0200] like Fig. 27 As shown, at an initial position where no current is applied to the AF coil 520, 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 AF moving unit 200. In addition, the moving unit may include the AF moving unit 200 and the OIS moving unit.

[0201] When a forward current is applied to the AF coil 520, the AF coil 520 can move upward in the optical axis direction through the electromagnetic interaction between the AF coil 520 and the AF magnet 510 (see Fig.28 At this time, the AF carrier 210 can move upward along the optical axis direction together with the AF coil 520. In addition, the OIS-x carrier 310, the OIS-y carrier 410 and the lens can move upward along the optical axis direction together with the AF carrier 210. Therefore, the distance between the lens and the image sensor can be changed to adjust the focus of the image formed on the image sensor through the lens.

[0202] When a reverse current is applied to the AF coil 520, the AF coil 520 can be moved to the lower side in the optical axis direction by electromagnetic interaction between the AF coil 520 and the AF magnet 510 (see Fig.29 B). At this time, the AF carrier 210 can move downward along the optical axis direction together with the AF coil 520. In addition, the OIS-x carrier 310, the OIS-y carrier 410 and the lens can move downward along the optical axis direction together with the AF carrier 210. Therefore, the distance between the lens and the image sensor can be changed to adjust the focus of the image formed on the image sensor through the lens.

[0203] At the same time, during the movement of the AF coil 520, the AF sensor 530 moves together with the AF coil 520 and detects the strength of the magnetic field of the AF magnet 510 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 530 can be used for automatic focus feedback control.

[0204] Hereinafter, optical image stabilization (OIS) driving of the lens driving device according to the present embodiment is described with reference to the accompanying drawings.

[0205] Figure 30 to Figure 32 It is a diagram for explaining the hand shake correction drive of the lens driving device according to the present embodiment. Fig.30is a cross-sectional view showing the appearance of the OIS moving unit in an initial state in which no current is applied to the OIS-x coil and the OIS-y coil; Fig.31 is a cross-sectional view showing an appearance that the OIS moving unit moves in an x-axis direction perpendicular to the optical axis when a current is applied to the OIS-x coil; and Fig.32 : is a cross-sectional view showing an appearance that the OIS-y 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.

[0206] like Fig.30 As shown, the moving unit may be disposed at an initial position where no current is applied to the OIS-x coil 620 and the OIS-y coil 720. At this time, the moving unit may be an OIS moving unit.

[0207] When a current is applied to the OIS-x coil 620, the OIS-x magnet 610 may move in the x-axis direction perpendicular to the optical axis by electromagnetic interaction between the OIS-x coil 620 and the OIS-x magnet 610 (see Fig.31 A). At this time, the OIS-x carrier 310 can move along the x-axis direction together with the OIS-x magnet 610. In addition, the OIS-y carrier 410 and the lens can move along the x-axis direction together with the OIS-x carrier 310. In more detail, when a forward current is applied to the OIS-x coil 620, the OIS-x magnet 610, the OIS-x carrier 310, the OIS-y carrier 410 and the lens can move in one direction on the x-axis. In addition, when a reverse current is applied to the OIS-x coil 620, the OIS-x magnet 610, the OIS-x carrier 310, the OIS-y carrier 410 and the lens can move in another direction on the x-axis.

[0208] When current is applied to the OIS-y coil 720, the OIS-y magnet 710 may move along the y-axis direction perpendicular to the optical axis through electromagnetic interaction between the OIS-y coil 720 and the OIS-y magnet 710, see Fig.32 B. At this time, the OIS-y carrier 410 can move along the y-axis direction together with the OIS-y magnet 710. In addition, the lens can move along the y-axis direction together with the OIS-y carrier 410. More specifically, when a forward current is applied to the OIS-y coil 720, the OIS-y magnet 710, the OIS-y carrier 410 and the lens can move in one direction on the y-axis. In addition, when a reverse current is applied to the OIS-y coil 720, the OIS-y magnet 710, the OIS-y carrier 410 and the lens can move in another direction on the y-axis.

[0209] At the same time, the OIS-x sensor 630 can detect the strength of the magnetic field of the OIS-x magnet 610, and detect the movement amount or position of the OIS-x magnet 610. The movement amount or position detected by the OIS-x sensor 630 can be used for hand-shake correction feedback control in the x-axis direction. The OIS-y sensor 730 can detect the strength of the magnetic field of the OIS-y magnet 710, and detect the movement amount or position of the OIS-y magnet 710. The movement amount or position detected by the OIS-y sensor 730 can be used for hand-shake correction feedback control in the y-axis direction.

[0210] Hereinafter, a camera device according to the present embodiment will be described with reference to the drawings.

[0211] Fig.35 It is an exploded perspective view of the camera device according to this embodiment.

[0212] The camera device 10A may include a camera module.

[0213] 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 the OIS-y carrier 410 of the lens driving device 10. The lens module 20 may be coupled to the OIS-y carrier 410 by threaded coupling and / or adhesive. The lens module 20 may move integrally with the OIS-y carrier 410.

[0214] The camera device 10A may include an optical filter 30. The optical filter 30 may block light of a specific frequency band from passing through the lens module 20 and being incident on the image sensor 60. The optical filter 30 may be arranged parallel to the xy plane. The optical filter 30 may be arranged between the lens module 20 and the image sensor 60. The optical filter 30 may be arranged in the sensor base 40. In a modified embodiment, the optical filter 30 may be arranged in the base 110. The optical 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.

[0215] The camera device 10A may include a sensor base 40. The sensor base 40 may be disposed between the lens drive device 10 and the printed circuit board 50. The sensor base 40 may include a protruding portion 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 110 of the lens drive 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 drive device 10. The adhesive member may include at least one of an epoxy resin, a thermosetting adhesive, and an ultraviolet curing adhesive.

[0216] 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 in 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 in the printed circuit board 50. Various circuits, elements, control units, etc. may be disposed in 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.

[0217] The camera device 10A may include an image sensor 60. The image sensor 60 may be configured so that 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 its optical axis 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.

[0218] 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 in 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 2-axis or 3-axis gyro sensor, or an angular velocity sensor.

[0219] The camera device 10A may include a control unit 80. The control unit 80 may be disposed in 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, and amplitude 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 hand shake correction function. In addition, the control unit 80 may perform autofocus feedback control and / or hand shake correction feedback control of the lens driving device 10.

[0220] 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.

[0221] Hereinafter, an optical device according to the present embodiment will be described with reference to the drawings.

[0222] Fig.34 is a perspective view of an optical device according to this embodiment; and Fig.35 is a perspective view of an optical device according to a modified embodiment.

[0223] The optical device 1 may include any one or more of the following: a mobile phone, a portable phone, a portable terminal, a mobile terminal, a smart phone, a smart tablet, a portable smart device, a digital camera, a laptop 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 an image or a photo.

[0224] The optical device 1 may include a main body 20. The optical device 1 may include a camera device 10A. The camera device 10A may be disposed in the main body 20. The camera device 10A may photograph a subject. The optical device 1 may include a display. The display may be disposed in the main body 20. The display may output one or more of an image and a video photographed by the camera device 10A. The display may be disposed on a first surface of the main body 20. The camera device 10A may be disposed on one or more of the first surface of the main body 20 and a second surface opposite to the first surface. Fig.34 As shown in FIG. 1 , the camera device 10A may have three cameras arranged in a vertical direction. Fig.35 As illustrated in , the camera device 10A-1 may have three cameras arranged in a horizontal direction.

[0225] Although the present embodiment of the present invention has been described 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 the technical concept or essential features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary and non-restrictive in all aspects.

Claims

1. A lens driving device, comprising: Fixed unit; a first moving unit, wherein the first moving unit is arranged on the fixing unit; a second moving unit disposed in the first moving unit and comprising a bobbin and a guide frame; a first driving unit, wherein the first driving unit is configured to move the first moving unit along an optical axis direction; a second driving unit, the second driving unit being disposed on the first moving unit and the second moving unit and configured to move the second moving unit along an x-axis; as well as A third driving unit is configured to move the bobbin along the y-axis.

2. The lens driving device according to claim 1, wherein: The first moving unit brings the bobbin into close contact with the guide frame.

3. The lens driving device according to claim 1, wherein: The first moving unit includes a yoke configured to bring the bobbin into close contact with the guide frame.

4. The lens driving device according to claim 1, wherein: The first moving unit includes a first yoke configured to bring the first moving unit into close contact with the fixing unit and a second yoke configured to bring the guide frame into close contact with the first moving unit.

5. The lens driving device according to claim 4, wherein: The first moving unit includes a third yoke configured to bring the bobbin into close contact with the guide frame.

6. The lens driving device according to claim 5, wherein: The first moving unit includes a housing, and the first to third yokes are coupled to the housing.

7. The lens driving device according to claim 1, wherein: The third driving unit includes a first magnet and a first coil, the first magnet is disposed on the bobbin, the first coil is configured to interact with the first magnet, and Wherein, the first coil is configured to move together with the first moving unit.

8. The lens driving device according to claim 7, wherein: the second driving unit includes a second magnet and a second coil, the second magnet being disposed on the guide frame, the second coil being configured to interact with the second magnet, and Wherein, the second coil is configured to move together with the first moving unit.

9. The lens driving device according to claim 8, wherein: The first driving unit includes a third magnet and a third coil, the third magnet is disposed on the fixing unit, and the third coil is configured to interact with the third magnet, and Wherein, the third coil is configured to move together with the first moving unit.

10. A lens driving device, comprising: base; a housing, the housing being disposed on the base; a guide frame, the guide frame being arranged in the housing; a bobbin disposed in the guide frame; a first spherical body, the first spherical body being disposed between the base and the shell; a second spherical body disposed between a side surface of the guide frame and a side surface of the housing; as well as A third spherical body is disposed between a side surface of the bobbin and another side surface of the guide frame.

Images