Lens drive devices, camera devices, and optical instruments

Abstract

This embodiment relates to a lens drive device comprising: a base; a first carrier disposed on the base; a second carrier disposed on the first carrier; a third carrier disposed on the second carrier; a first drive unit for moving the first carrier in a first direction perpendicular to the optical axis direction; a second drive unit for moving the second carrier in a second direction perpendicular to the optical axis direction and the first direction; a third drive unit for moving the third carrier in the optical axis direction; an attractive magnet disposed on the second carrier; and a first yoke disposed on the base, wherein the first yoke is positioned corresponding to the attractive magnet so as to act with the attractive magnet, and the third drive unit comprises a third magnet disposed on the third carrier and a third coil disposed on the second carrier.

Description

Technical Field

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

Background Art

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

[0003] An autofocus function in which the focus is automatically adjusted according to the distance of the subject is applied to the camera device. Also, a shake correction function for preventing the phenomenon that the focus shakes due to the shake of the user's hand is applied.

[0004] By the way, in order to arrange components such as a magnet and a coil for executing the autofocus function and the shake correction function, a size larger than the thickness of the smartphone in the optical axis direction is required, and there is a problem that the camera device mounted on the smartphone protrudes more than other parts of the smartphone.

[0005] (Patent Document 1) KR10-2015-0118005A

Summary of the Invention

Problems to be Solved by the Invention

[0006] An object of this embodiment is to provide a camera device in which the size in the optical axis direction is minimized, despite having an autofocus function and a shake correction function.

[0007] Another object is to provide a camera device to which a large-diameter lens can be applied.

Means for Solving the Problems

[0008] The lens drive device according to this embodiment includes a base; a first carrier disposed on the base; a second carrier disposed on the first carrier; a third carrier disposed on the second carrier; a first drive unit for moving the first carrier in a first direction perpendicular to the optical axis direction; a second drive unit for moving the second carrier in a second direction perpendicular to the optical axis direction and the first direction; a third drive unit for moving the third carrier in the optical axis direction; an attractive magnet disposed on the second carrier; and a first yoke disposed on the base, wherein the first yoke is positioned corresponding to the attractive magnet so as to act with the attractive magnet, and the third drive unit may include a third magnet disposed on the third carrier and a third coil disposed on the second carrier.

[0009] The first drive unit includes a first magnet positioned on the first carrier and a first coil interacting with the first magnet, and a second yoke is positioned on the base with which an attractive force acts with the first magnet, and the second yoke may include a plurality of yokes spaced apart from each other.

[0010] The second drive unit includes a second magnet positioned on the second carrier and a second coil interacting with the second magnet, and a third yoke is positioned on the base with which an attractive force acts with the second magnet, and the third yoke may include a plurality of yokes spaced apart from each other.

[0011] The third coil may be placed on the substrate, which includes a substrate connecting the second carrier and the base.

[0012] The substrate includes an outer portion disposed on the base, an inner portion disposed on the second carrier, and a connecting portion connecting the outer portion and the inner portion, the connecting portion may have a bent shape.

[0013] The connecting portion can be bent once.

[0014] The third coil can move together with the second carrier.

[0015] When the first carrier moves in the first direction, the first carrier, the second carrier, and the third carrier can move together.

[0016] When the second carrier moves in the second direction, the second carrier and the third carrier move together, and when the second carrier moves in the first and second directions, the distance between the third magnet and the third coil can be maintained.

[0017] The lens drive device may include a first ball positioned between the base and the first carrier; a second ball positioned between the first carrier and the second carrier; and a third ball positioned between the second carrier and the third carrier.

[0018] The attractive magnet may overlap with the first yoke in the direction of the optical axis, but it is not necessary for the attractive magnet to overlap with the coil in the direction of the optical axis.

[0019] The lens drive device according to this embodiment includes a base; a first carrier disposed on the base; a second carrier disposed on the first carrier; a first magnet and a first coil for moving the first carrier in a first direction perpendicular to the optical axis direction; a second magnet and a second coil for moving the second carrier in a second direction perpendicular to the optical axis direction and the first direction; a first yoke with which an attractive force acts with the first magnet; and a second yoke with which an attractive force acts with the second magnet, wherein the first magnet is disposed on the first carrier, and the first yoke may include a first-first yoke and a first-second yoke disposed on the base and spaced apart from each other.

[0020] The second magnet is positioned on the second carrier, and the second yoke may include a second-first yoke and a second-second yoke positioned on the base and spaced apart from each other.

[0021] The camera device according to this embodiment can include a printed circuit board; an image sensor disposed on the printed circuit board; the lens driving device disposed on the printed circuit board; and a lens coupled to the lens driving device.

[0022] The optical device according to this embodiment can include a main body; the camera device disposed on the main body; and a display disposed on the main body and outputting any one or more of the video and image captured by the camera device.

Advantages of the Invention

[0023] According to this embodiment, a camera device with a size minimized in the optical axis direction can perform an autofocus function and a shake correction function.

[0024] The camera device according to this embodiment may not protrude from the smartphone. Or, the camera device according to this embodiment can protrude minimally from the smartphone.

[0025] According to this embodiment, even a camera device that does not protrude or protrudes minimally from the smartphone can perform both an autofocus function and a shake correction function.

[0026] Also, through this embodiment, a camera device with a size minimized in the horizontal and vertical directions perpendicular to the optical axis can be provided.

[0027] Also, even when a heavy large-diameter lens is applied through the camera device of this embodiment, the autofocus function and the shake correction function can operate normally.

[0028] Also, the phenomenon that the OIS-x carrier and the OIS-y carrier are tilted unintentionally can be prevented.

Brief Description of the Drawings

[0029] [Figure 1]This is a perspective view of the lens drive device according to this embodiment.

[0030] [Figure 2] This is a perspective view of the lens drive device according to this embodiment, taken from a different direction than in Figure 1.

[0031] [Figure 3] This is a cross-sectional view from point AA in Figure 1.

[0032] [Figure 4] This is a cross-sectional view from BB in Figure 1.

[0033] [Figure 5] This is a cross-sectional view from CC in Figure 1.

[0034] [Figure 6] This is a cross-sectional view from the DD in Figure 1.

[0035] [Figure 7] This is a cross-sectional view from EE in Figure 1.

[0036] [Figure 8] This is a cross-sectional perspective view illustrating a cross-section of the lens drive device according to this embodiment, cut in a direction perpendicular to the optical axis.

[0037] [Figure 9] This is an exploded perspective view of the lens drive device according to this embodiment.

[0038] [Figure 10] This is an exploded perspective view of the lens drive device according to this embodiment, viewed from a different direction than Figure 9.

[0039] [Figure 11] This is a plan view illustrating the base and related configuration of the lens drive device according to this embodiment.

[0040] [Figure 12]Figure 11 is a plan view of the assembled circuit board and OIS coil assembly.

[0041] [Figure 13] This is an enlarged perspective view, showing a portion of Figure 12.

[0042] [Figure 14] Figure 12 is a perspective view showing the assembled OIS-x carrier and related configuration.

[0043] [Figure 15] Figure 14 is a partially perspective view taken from a different direction.

[0044] [Figure 16] This is a bottom perspective view of the OIS-x carrier of the lens drive device according to this embodiment.

[0045] [Figure 17] Figure 14 is a perspective view showing the assembled OIS-y carrier and related configuration.

[0046] [Figure 18] This is a bottom perspective view of the OIS-y carrier of the lens drive device according to this embodiment.

[0047] [Figure 19] This is a partially perspective view illustrating the attractive magnet and attractive yoke of the lens drive device according to this embodiment.

[0048] [Figure 20] Figure 17 is a perspective view of the assembled circuit board.

[0049] [Figure 21] Figure 20 is a perspective view from a different direction.

[0050] [Figure 22] Figure 21 is a perspective view showing the AF carrier and related components assembled.

[0051] [Figure 23] Figure 22 is a perspective view from a different direction.

[0052] [Figure 24] This is a cross-sectional perspective view illustrating the attractive magnet and attractive yoke of the lens drive device according to this embodiment.

[0053] [Figure 25] This figure illustrates the effects of the attractive magnet and attractive yoke of the lens drive device according to this embodiment, showing the (a) tilt direction of the OIS-x carrier and (b) tilt direction of the OIS-y carrier that can occur in the absence of the attractive magnet and attractive yoke.

[0054] [Figure 26] This is a perspective view illustrating the magnet, coil, and yoke of the lens drive device according to this embodiment.

[0055] [Figure 27] Figure 26 is a bottom perspective view from a different direction.

[0056] [Figure 28] This figure illustrates the autofocus drive of the lens drive device according to this embodiment. It is a cross-sectional view showing the AF movement unit in its initial state when no current is applied to the AF coil. [Figure 29] This figure illustrates the autofocus drive of the lens drive device according to this embodiment. It is a cross-sectional view showing the AF moving part moving upward in the optical axis direction when a positive current is applied to the AF coil. [Figure 30] This figure illustrates the autofocus drive of the lens drive device according to this embodiment. It is a cross-sectional view showing how the AF moving part moves downward in the optical axis direction when a reverse current is applied to the AF coil.

[0057] [Figure 31]This figure illustrates the hand shake correction drive of the lens drive device according to this embodiment. It is a cross-sectional view showing the movement of the moving part in the initial state when no current is applied to the OIS-x coil and OIS-y coil. [Figure 32] This figure illustrates the hand shake correction drive of the lens drive device according to this embodiment. It is a cross-sectional view showing how the OIS-x moving part, OIS-y moving part, and AF moving part move in the x-axis direction perpendicular to the optical axis when current is applied to the OIS-x coil. [Figure 33] This figure illustrates the hand shake correction drive of the lens drive device according to this embodiment. It is a cross-sectional view showing how the OIS-y moving part and the AF moving part move in the y-axis direction perpendicular to the optical axis when current is applied to the OIS-y coil.

[0058] [Figure 34] This is an exploded perspective view of the camera device according to this embodiment.

[0059] [Figure 35] This is a perspective view of the optical instrument according to this embodiment.

[0060] [Figure 36] This is a perspective view of an optical instrument with modified characteristics. [Modes for carrying out the invention]

[0061] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0062] However, the technical concept of the present invention is not limited to the embodiments described, and can be realized in various different forms. Within the scope of the technical concept of the present invention, one or more components between embodiments can be selectively combined or substituted for each other.

[0063] Furthermore, terms used in the embodiments of the present invention (including technical and scientific terms) shall be interpreted as being generally understood by a person skilled in the art to which the present invention pertains, unless explicitly defined and described, and terms commonly used together with dictionary-defined terms may be interpreted in consideration of their meaning in the context of the relevant art.

[0064] Furthermore, the terminology used in the embodiments of this invention is for illustrative purposes only and does not limit the invention.

[0065] In this specification, the singular form includes the plural form unless otherwise specified in the text, and when it says "A and / or at least one of B, C," it may include one or more of all possible combinations of A, B, and C.

[0066] Furthermore, when describing the components of the embodiments of the present invention, terms such as 1st, 2nd, A, B, (a), (b), etc., can be used. Such terms are used solely to distinguish a component from other components and do not limit the essence, order, or sequence of the component in question.

[0067] Furthermore, when it is stated that one component is “linked,” “joined,” or “connected” to another component, this includes not only cases where that component is “linked,” “joined,” or “connected” to that other component directly, but also cases where it is “linked,” “joined,” or “connected” to another component that lies between that component and the other component.

[0068] Furthermore, when described as being formed or positioned "above" or "below" each component, "above" or "below" includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or positioned between the two components. Also, when expressed as "above" or "below," the meaning can include not only the upward direction but also the downward direction relative to one component.

[0069] In the following, "Optical Axis (see OA in Figure 28) direction" is defined as the optical axis direction of the lens and / or image sensor coupled to the lens drive unit.

[0070] As used below, "vertical direction" can be parallel to or the same as the optical axis. The vertical direction can correspond to the "z-axis direction". As used below, "horizontal direction" can be perpendicular to the vertical direction. That is, the horizontal direction can be perpendicular to the optical axis. Therefore, the horizontal direction can include the "x-axis direction" and the "y-axis direction".

[0071] In the following, "autofocus (AF) function" is defined as a function that automatically focuses on a subject by adjusting the distance to the image sensor by moving the lens along the optical axis according to the distance to the subject, so that a clear image of the subject is obtained on the image sensor. Furthermore, "closed-loop auto focus (CLAF) control" is defined as sensing the distance between the image sensor and the lens and providing real-time feedback control of the lens position to improve the accuracy of focus adjustment.

[0072] In the following, "optical image stabilization (OIS) function" is defined as a function that moves or tilts the lens perpendicular to the optical axis to counteract hand tremors, thereby preventing the image or video from shaking due to the user's hand movements. Furthermore, "closed-loop autofocus (CLAF) control" is defined as sensing the position of the lens relative to the image sensor and providing real-time feedback control of the lens position to improve the accuracy of hand stabilization.

[0073] In the following, one of the "AF moving unit 200," "OIS-x moving unit 300," and "OIS-y moving unit 400" may be referred to as the "first moving unit," another as the "second moving unit," and yet another as the "third moving unit." Furthermore, the term "moving unit" can refer to a "moving body" or "moving element."

[0074] In the following, one of the "AF Carrier 210," "OIS-x Carrier 310," and "OIS-y Carrier 410" can be designated as the "First Carrier," another as the "Second Carrier," and yet another as the "Third Carrier." Furthermore, "Carrier" can be replaced with "Holder," "Frame," or "Spacer."

[0075] In the following, "AF Carrier 210" can be referred to as "bobbin," "OIS-x Carrier 310" as "spacer," and "OIS-y Carrier 410" as "housing."

[0076] In the following, one of the "AF drive unit 500," "OIS-x drive unit 600," and "OIS-y drive unit 700" can be designated as the "first drive unit," another as the "second drive unit," and yet another as the "third drive unit."

[0077] In the following, one of the following can be designated as the "First Magnet": "AF Magnet 510", "OIS-x Magnet 610", "OIS-y Magnet 710", and "Attraction Magnet 955"; another as the "Second Magnet", another as the "Third Magnet", and another as the "Fourth Magnet". On the other hand, "Net" can be "Magnet", "Magnet", or "Permanent Magnet".

[0078] In the following, one of the "AF coil 520," "OIS-x coil 620," and "OIS-y coil 720" can be designated as the "first coil," another as the "second coil," and yet another as the "third coil."

[0079] In the following, one of the "AF sensor 530," "OIS-x sensor 630," and "OIS-y sensor 730" can be designated as the "first sensor," another as the "second sensor," and yet another as the "third sensor."

[0080] In the following, one of the "AF Guide Ball 810," "OIS-x Guide Ball 820," "OIS-y Guide Ball 830," and "OIS Guide Ball 840" can be designated as the "First Ball," another as the "Second Ball," another as the "Third Ball," and another as the "Fourth Ball." On the other hand, "Ball" can be designated as a "Guide Ball." For example, "First Ball" can be designated as the "First Guide Ball."

[0081] In the following, one of the following can be designated as the "first yoke": "AF gravity yoke 910", "OIS-x gravity yoke 920", "OIS-y gravity yoke 930", and "additional OIS-y gravity yoke 950"; the other one as the "second yoke", the other one as the "third yoke", and the other one as the "fourth yoke".

[0082] In the following, one of the "substrate 140" and "substrate 850" can be referred to as the "first substrate" and the other as the "second substrate".

[0083] In the following, multiple grooves can be distinguished from each other by designating them as "Groove 1," "Groove 2," etc.

[0084] In the following, one of the "x-axis direction" and the "y-axis direction" can be referred to as the "first direction," and the other as the "second direction."

[0085] The configuration of the lens drive device according to this embodiment will be described below with reference to the drawings.

[0086] Figure 1 is a perspective view of the lens drive device according to this embodiment. Figure 2 is a perspective view of the lens drive device according to this embodiment, viewed from a different direction than Figure 1. Figure 3 is a cross-sectional view taken from AA in Figure 1. Figure 4 is a cross-sectional view taken from BB in Figure 1. Figure 5 is a cross-sectional view taken from CC in Figure 1. Figure 6 is a cross-sectional view taken from DD in Figure 1. Figure 7 is a cross-sectional view taken from EE in Figure 1. Figure 8 is a cross-sectional perspective view showing a cross-section of the lens drive device according to this embodiment, cut in a direction perpendicular to the optical axis. Figure 9 is an exploded perspective view of the lens drive device according to this embodiment. Figure 10 is an exploded perspective view of the lens drive device according to this embodiment, viewed from a different direction than Figure 9. Figure 11 is a plan view illustrating the base and related components of the lens drive device according to this embodiment. Figure 12 is a plan view of the assembled substrate and OIS coil assembly in Figure 11. Figure 13 is an enlarged perspective view of a part of Figure 12. Figure 14 is a perspective view of the assembled OIS-x carrier and related components in Figure 12. Figure 15 is a partially perspective view of Figure 14 from a different direction. Figure 16 is a bottom perspective view of the OIS-x carrier of the lens drive device according to this embodiment. Figure 17 is a perspective view of the OIS-y carrier and related components assembled in Figure 14. Figure 18 is a bottom perspective view of the OIS-y carrier of the lens drive device according to this embodiment. Figure 19 is a partially perspective view illustrating the attractive magnet and attractive yoke of the lens drive device according to this embodiment. Figure 20 is a perspective view of the substrate assembled in Figure 17. Figure 21 is a perspective view of Figure 20 from another direction. Figure 22 is a perspective view of Figure 21 with the AF carrier and related components assembled. Figure 23 is a perspective view of Figure 22 from another direction. Figure 24 is a cross-sectional perspective view illustrating the attractive magnet and attractive yoke of the lens drive device according to this embodiment. Figure 25 is a diagram illustrating the possible tilt directions of the (a) OIS-x carrier and (b) OIS-y carrier in the absence of the attractive magnet and attractive yoke of the lens drive device according to this embodiment, in order to explain the effect of the attractive magnet and attractive yoke of the lens drive device according to this embodiment. Figure 26 is a perspective view illustrating the magnet, coil, and yoke of the lens drive device according to this embodiment. Figure 27 is a bottom perspective view of Figure 26 from another direction.

[0087] The lens drive device 10 can be a voice coil motor (VCM). The lens drive device 10 can be a lens drive motor. The lens drive device 10 can be a lens drive actuator. The lens drive device 10 can include an AF module. The lens drive device 10 can include an OIS module.

[0088] The lens drive device 10 may include a fixed part 100. The fixed part 100 may be a part that is fixed relative to the movement of the moving part. The moving part can move relative to the fixed part 100. The fixed part 100 may be located on the outside of the moving part. The fixed part 100 may house the moving part inside.

[0089] The lens drive unit 10 may include a base 110. The fixing unit 100 may include a base 110. The base 110 may be located below the AF carrier 210. The base 110 may be located below the OIS-x carrier 310. The base 110 may be located below the OIS-y carrier 410. The base 110 may be coupled with a cover 120. The AF carrier 210, OIS-x carrier 310, and OIS-y carrier 410 may be located on the base 110. The AF carrier 210, OIS-x carrier 310, and OIS-y carrier 410 may be located on the lower plate 112 of the base 110. The AF carrier 210, OIS-x carrier 310, and OIS-y carrier 410 may be located inside the base 110. The AF carrier 210, OIS-x carrier 310, and OIS-y carrier 410 may be located inside the side plate 113 of the base 110.

[0090] The base 110 may include a groove 111. The groove 111 may be an "OIS-x guide ball housing groove". The groove 111 may be formed as a recess in the base 110. The groove 111 may be formed by indenting one surface of the base 110. The groove 111 may be formed in the lower plate 112 of the base 110. The groove 111 may be formed on the upper surface of the lower plate 112 of the base 110. An OIS-x guide ball 820 can be placed in the groove 111. The groove 111 can be in direct contact with the OIS-x guide ball 820. The groove 111 may be positioned in the x-axis direction perpendicular to the optical axis. The groove 111 may include multiple grooves. The groove 111 may include four grooves. The four grooves may be positioned parallel to each other. The groove 111 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 example, both the first and second grooves may contact the OIS-x guide ball 820 at two points.

[0091] The base 110 may include a bottom plate 112. The base 110 may include a side plate 113. The side plate 113 of the base 110 may be a "side". The side plate 113 of the base 110 may extend from the top surface of the bottom plate 112. The side plate 113 of the base 110 may include multiple side plates. The side plate 113 of the base 110 may include four side plates. The base 110 may include a first side and a second side, and a third side and a fourth side, both located on opposite sides. The AF coil 520 may be located on the first side of the base 110. The OIS-x coil 620 may be located on the second side of the base 110. The OIS-y coil 720 may be located on the third side of the base 110.

[0092] The base 110 may include a groove. The groove may be a "yoke housing groove". The groove may be formed in the lower plate 112 of the base 110. The groove may be formed on the upper surface of the lower plate 112 of the base 110. The OIS-x force yoke 920 and the OIS-y force yoke 930 may be placed in the groove.

[0093] The lens drive unit 10 may include a cover 120. The fixing part 100 may include a cover 120. The cover 120 may be placed on the base 110. The cover 120 may be placed 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 be bonded to the base 110 with adhesive. The cover 120 may house an AF carrier 210 inside. The cover 120 may house an OIS-x carrier 310 inside. The cover 120 may house an OIS-y carrier 410 inside. The cover 120 may be a shield can. The cover 120 may be a shield can.

[0094] The cover 120 may include a top plate 121. The top plate 121 may be positioned on the movable part. The upward movement of the movable part may be restricted by the movable part contacting the top plate 121. The top plate 121 may include holes through which light passes.

[0095] The cover 120 may include side plates 122. The side plates 122 may extend from the top plate 121. The side plates 122 may be positioned on the base 110. The side plates 122 may be positioned on a stepped portion that protrudes from the lower part of the outer surface of the base 110. The side plates 122 may include multiple side plates. The side plates 122 may include four side plates. The side plates 122 may include a first side plate and a second side plate positioned on opposite sides of each other, and a third side plate and a fourth side plate positioned on opposite sides of each other.

[0096] The AF magnet 510 can be placed between the AF carrier 210 and the first side plate of the cover 120. The OIS-x magnet 610 can be placed between the AF carrier 210 and the second side plate of the cover 120. The OIS-y magnet 710 can be placed between the AF carrier 210 and the third side plate of the cover 120.

[0097] The lens drive device 10 may include a substrate 140. The fixing part 100 may include a substrate 140. The substrate 140 may be placed on the base 110. The substrate 140 may be placed on the lower plate 112 of the base 110. The substrate 140 may be placed on the upper surface of the lower plate 112 of the base 110. The substrate 140 may be placed perpendicular to the optical axis. The substrate 140 may be a circuit board. The substrate 140 may be a printed circuit board. The substrate 140 may include an FPCB (Flexible printed circuit board). The substrate 140 may be flexible. The substrate 140 may be bendable. The OIS-x coil 620 may be placed on the substrate 140. The OIS-x coil 620 may be placed on the upper surface of the substrate 140. The OIS-x sensor 630 may be placed on the substrate 140. The OIS-x sensor 630 may be placed on the upper surface of the substrate 140. The OIS-y coil 720 can be placed on the substrate 140. The OIS-y coil 720 can be placed on the top surface of the substrate 140. The OIS-y sensor 730 can be placed on the substrate 140. The OIS-y sensor 730 can be placed on the top surface of the substrate 140.

[0098] The substrate 140 may include a main body. The main body may house the OIS-x coil 620 and the OIS-y coil 720. The substrate 140 may also include terminals 141. The terminals 141 may be located on a terminal section that is bent downwards from the main body. The terminals 141 may be formed on the lower part of the substrate 140. The terminals 141 may protrude below the base 110.

[0099] Terminal 141 may include multiple terminals. Terminal 141 on the board 140 may include a first terminal electrically connected to the OIS-x coil 620. Terminal 141 on the board 140 may include a second terminal electrically connected to the OIS-x sensor 630. Terminal 141 on the board 140 may include a third terminal electrically connected to the OIS-y coil 720. Terminal 141 on the board 140 may include a fourth terminal electrically connected to the OIS-y sensor 730. Terminal 141 can be coupled to the printed circuit board 50. Terminal 141 can be coupled to the printed circuit board 50 by solder. Terminal 141 can be coupled to the printed circuit board 50 via a conductive member.

[0100] The circuit board 140 may include terminals 142. Terminals 142 may be located on the top surface of the circuit board 140. Terminals 142 may include two first terminals that are soldered to the OIS-x coil 620. The two first terminals may be located on one side of the outside of the OIS-x coil 620. Terminals 142 may include two second terminals that are soldered to the OIS-y coil 720. The two second terminals may be located on one side of the outside of the OIS-y coil 720.

[0101] The substrate 140 may include a bypass portion 143. The bypass portion 143 may be positioned adjacent to the terminal 142 as shown in Figure 13. The bypass portion 143 may be formed to prevent the coil coupled to the substrate 140 from lifting up. The bypass portion 143 may be formed to prevent interference between the coil and the substrate 140. One or more of the start and end wires of the OIS-x coil 620 may be placed in the bypass portion 143. If there is no bypass portion 143, one or more of the start and end wires of the OIS-x coil 620 may cause the overlapping portion of the OIS-x coil 620 to protrude. One or more of the start and end wires of the OIS-y coil 720 may be placed in the bypass portion 143. If there is no bypass portion 143, one or more of the start and end wires of the OIS-y coil 720 may cause the overlapping portion of the OIS-x coil 620 to protrude.

[0102] The lens drive device 10 may include a movable part. The movable part may be located on the fixed part 100. The movable part may be located within the fixed part 100. The movable part may be located on the fixed part 100. The movable part may be located on the fixed part 100 so as to be movable. The movable part may be moved relative to the fixed part 100 by a drive unit. The movable part may be moved during AF drive. The movable part may be moved during OIS drive. A lens may be coupled to the movable part.

[0103] The lens drive unit 10 may include an AF moving unit 200. The AF moving unit 200 may be located in the fixed unit 100. The AF moving unit 200 may be located within the fixed unit 100. The AF moving unit 200 may be located on the fixed unit 100. The AF moving unit 200 may be located within the OIS-x moving unit 300. The AF moving unit 200 may be located on the OIS-x moving unit 300. The AF moving unit 200 may be located within the OIS-y moving unit 400. The AF moving unit 200 may be located on the OIS-y moving unit 400. The AF moving unit 200 may be located so as to be movable. The AF moving unit 200 is movable. The AF moving unit 200 is movable in the optical axis direction relative to the fixed unit 100, the OIS-x moving unit 300, and the OIS-y moving unit 400 by the AF drive unit 500. The AF movement unit 200 can be moved when AF is being driven.

[0104] When current is applied to the OIS-y coil 720, the AF moving part 200 can move together with the OIS-y moving part 400. When current is applied to the OIS-x coil 620, the AF moving part 200 and the OIS-y moving part 400 can move together with the OIS-x moving part 300.

[0105] The lens drive unit 10 may include an AF carrier 210. The AF moving unit 200 may include an AF carrier 210. The AF carrier 210 may be a "bobbin". The AF carrier 210 may be an "AF holder". The AF carrier 210 may be placed inside the base 110. The AF carrier 210 may be placed on the base 110. The AF carrier 210 may be placed inside the OIS-x carrier 310. The AF carrier 210 may be placed on the OIS-x carrier 310. The AF carrier 210 may be placed inside the OIS-y carrier 410. The AF carrier 210 may be placed on the OIS-y carrier 410. The AF carrier 210 may be placed inside the cover 120. The AF carrier 210 may be positioned so that it can move in the optical axis direction. The AF carrier 210 can move. The AF carrier 210 can move in the optical axis direction.

[0106] The AF carrier 210 may include grooves. The grooves may be "AF guide ball housing grooves". AF guide balls 810 can be placed in the grooves. The grooves can be in direct contact with the AF guide balls 810. The grooves may include multiple grooves. The grooves may include four grooves. The number of grooves may be the same as the number of AF guide balls 810. One AF guide ball 810 can be placed in each of the multiple grooves. The grooves 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 example, both the first and second grooves can contact the AF guide ball 810 at two points.

[0107] The AF carrier 210 may include a groove. The groove may be an "AF magnet housing groove". The groove may be formed on the outer surface of the AF carrier 210. An AF magnet 510 may be placed in the groove. The groove may be formed in a shape corresponding to the AF magnet 510.

[0108] The AF carrier 210 may include an upper stopper 213. The upper stopper 213 may be formed on the upper surface of the AF carrier 210. The upper stopper 213 may protrude from the upper surface of the AF carrier 210. The upper stopper 213 may overlap with the upper plate 121 of the cover 120 in the optical axis direction. The upper stopper 213 may come into contact with the upper plate 121 of the cover 120 when the AF carrier 210 moves to its maximum upward position. In other words, the upper stopper 213 can limit the upward stroke of the AF carrier 210.

[0109] The lens drive unit 10 may include an OIS-x moving unit 300. The OIS-x moving unit 300 may be located on the fixed unit 100. The OIS-x moving unit 300 may be located within the fixed unit 100. The OIS-x moving unit 300 may be located on the fixed unit 100. The OIS-x moving unit 300 may be located below the OIS-y moving unit 400. The OIS-x moving unit 300 may be located between the fixed unit 100 and the AF moving unit 200. The OIS-x moving unit 300 may be located between the fixed unit 100 and the OIS-y moving unit 400. The OIS-x moving unit 300 may be located so as to be movable. The OIS-x moving unit 300 may be moved in the x-axis direction relative to the fixed unit 100 by the OIS-x drive unit 600. The OIS-x moving unit 300 may be moved when OIS is driven. When the OIS-x movement unit 300 moves in the x-axis direction, the OIS-y movement unit 400 and the AF movement unit 200 can also move together.

[0110] The lens drive unit 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 located inside the base 110. The OIS-x carrier 310 may be located on top of the base 110. The OIS-x carrier 310 may be located below the OIS-y carrier 410. The OIS-x carrier 310 may be located inside the cover 120. The OIS-x carrier 310 may be located between the base 110 and the AF carrier 210. The OIS-x carrier 310 may be located between the base 110 and the OIS-y carrier 410. The OIS-x carrier 310 may be located so as to be movable in the x-axis direction.

[0111] The OIS-x carrier 310 may include a groove 311. The groove 311 may be an "OIS-y guide ball housing groove". The groove 311 may be formed on the upper surface of the OIS-x carrier 310. An OIS-y guide ball 830 may be placed in the groove 311. The groove 311 may be in direct contact with the OIS-y guide ball 830. The groove 311 may be oriented in the y-axis direction. The groove 311 may include multiple grooves. The groove 311 may include four grooves. The groove 311 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 example, both the first and second grooves may contact the AF guide ball 810 at two points.

[0112] The OIS-x carrier 310 may include grooves 312. The grooves 312 may be "OIS-x guide ball housing grooves". The grooves 312 may be formed in the OIS-x carrier 310. The grooves 312 may be formed on the lower surface of the OIS-x carrier 310. OIS-x guide balls 820 can be placed in the grooves 312. The grooves 312 may be in direct contact with the OIS-x guide balls 820. The grooves 312 may be oriented in the x-axis direction. The grooves 312 may include multiple grooves. The grooves 312 may include four grooves. The grooves 312 may include a first groove that contacts the OIS-x guide balls 820 at two points and a second groove that contacts the OIS-x guide balls 820 at one point. In a modified example, both the first and second grooves may contact the OIS-x guide balls 820 at two points.

[0113] The OIS-x carrier 310 may include a groove 315. The groove 315 may be an "OIS-x magnet housing groove". The groove 315 may be formed on the side of the OIS-x carrier 310. An OIS-x magnet 610 can be placed in the groove 315. The groove 315 may have a shape corresponding to the OIS-x magnet 610.

[0114] The OIS-x carrier 310 may include a groove 316. The groove 316 may be an "attraction magnet avoidance groove". The groove 316 may be formed as a recess in the side surface of the OIS-x carrier 310. The groove 316 may be formed in a position corresponding to the projection 415 of the OIS-y carrier 410.

[0115] The lens drive device 10 may include a metal member 320. The OIS-x moving part 300 may include a metal member 320. The OIS-x carrier 310 may include a metal member 320. The metal member 320 may be placed inside the OIS-x carrier 310. The metal member 320 may be insert-injected into the OIS-x carrier 310. The metal member 320 may reinforce the OIS-x moving part 310. The metal member 320 may prevent the OIS-x moving part 310 from being damaged.

[0116] The lens drive device 10 may include an OIS-y moving unit 400. The OIS-y moving unit 400 can be located on the fixed unit 100. The OIS-y moving unit 400 can be located within the fixed unit 100. The OIS-y moving unit 400 can be located on the fixed unit 100. The OIS-y moving unit 400 can be located on the OIS-x moving unit 300. The OIS-y moving unit 400 can be located on the OIS-x moving unit 300. The OIS-y moving unit 400 can be located between the fixed unit 100 and the AF moving unit 200. The OIS-y moving unit 400 can be located between the fixed unit 100 and the AF moving unit 200 in a direction perpendicular to the optical axis. The OIS-y moving unit 400 can be located between the fixed unit 100 and the AF moving unit 200 in the x-axis direction. The OIS-y moving unit 400 can be located so as to be movable on the fixed unit 100. The OIS-y moving unit 400 can be moved in the y-axis direction relative to the fixed unit 100 by the OIS-y drive unit 700. The OIS-y moving unit 400 can be moved in the y-axis direction relative to the OIS-x moving unit 300 by the OIS-y drive unit 700. The OIS-y moving unit 400 can move when the OIS is driven. When the OIS-y moving unit 400 moves, the AF moving unit 200 can also move with it.

[0117] The lens drive unit 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 an "OIS-y holder". The OIS-y carrier 410 may be placed on the base 110. The OIS-y carrier 410 may be placed inside the base 110. The OIS-y carrier 410 may be placed on the base 110. The OIS-y carrier 410 may be placed inside the cover 120. The OIS-y carrier 410 may be placed on the OIS-x carrier 310. The OIS-y carrier 410 may be placed on the OIS-x carrier 310. The OIS-y carrier 410 may be placed between the base 110 and the AF carrier 210. The OIS-y carrier 410 may be placed between the base 110 and the AF carrier 210 in a direction perpendicular to the optical axis. The OIS-y carrier 410 can be positioned between the side plate 113 of the base 110 and the AF carrier 210 in the x-axis direction. The OIS-y carrier 410 can be positioned so that it can move in the y-axis direction. The OIS-y carrier 410 can be positioned between the base 110 and the OIS-x carrier 310.

[0118] The OIS-y carrier 410 may include a groove 411. The groove 411 may be an "AF guide ball housing groove". The groove 411 may be formed to be recessed in the OIS-y carrier 410. The groove 411 may be formed on the inner surface of the OIS-y carrier 410. An AF guide ball 810 may be placed in the groove 411. The groove 411 may be in direct contact with the AF guide ball 810. The groove 411 may be oriented in the optical axis direction. The groove 411 may include multiple grooves. The groove 411 may include two grooves. The groove 411 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 example, both the first and second grooves may contact the AF guide ball 810 at two points.

[0119] The OIS-y carrier 410 may include a groove 412. The groove may be an "OIS-y guide ball housing groove". The groove 412 may be formed to be recessed in the OIS-y carrier 410. The groove 412 may be formed on the lower surface of the OIS-y carrier 410. An OIS-y guide ball 830 may be placed in the groove 412. The groove 412 may be in direct contact with the OIS-y guide ball 830. The groove 412 may be oriented in the y-axis direction. The groove 412 may include multiple grooves. The groove 412 may include four grooves. The four grooves may be arranged parallel to each other. The groove 412 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 example, both the first and second grooves may contact the OIS-y guide ball 830 at two points.

[0120] The OIS-y carrier 410 may include a groove 413. The groove 413 may be an "OIS-y magnet housing groove". The groove 413 may be formed on the outer surface of the OIS-y carrier 410. An OIS-y magnet 710 can be placed in the groove 413. The groove 413 may include a shape corresponding to the OIS-y magnet 710.

[0121] The OIS-y carrier 410 may include grooves. The grooves may be "AF force yoke housing grooves". The grooves may be formed on the outer surface of the OIS-y carrier 410. The AF force yoke 910 can be positioned in the grooves. The grooves may include shapes corresponding to the AF force yoke 910. The grooves may include multiple grooves. The grooves may include two grooves. The grooves may be formed in a number corresponding to the AF force yoke 910.

[0122] The OIS-y carrier 410 may include a protrusion 415. The protrusion 415 may project downward. The protrusion 415 of the OIS-y carrier 410 may overlap with the OIS-x carrier 310 in a direction perpendicular to the optical axis. An attractive magnet 955 may be positioned on the protrusion 415 of the OIS-y carrier 410.

[0123] The OIS-y carrier 410 may include a stopper 416. The stopper 416 may protrude from the upper surface of the OIS-y carrier 410. The stopper 416 may be formed on the upper surface of the OIS-y carrier 410. The stopper 416 may be an upper stopper. The stopper 416 may overlap with the upper plate 121 of the cover 120 in the optical axis direction. The stopper 416 may come into contact with the upper plate 121 of the cover 120 when the OIS-y carrier 410 moves upward. The stopper 416 may be formed at the corner end of the OIS-y carrier 410. In this case, the stopper 416 can prevent the rotation of the OIS-y carrier 410 by contacting the base 110.

[0124] The lens drive device 10 may include a drive unit. The drive unit can move a movable part relative to a fixed part. The drive unit may include an AF drive unit 500. The drive unit may include OIS drive units 600 and 700. The drive unit may include a coil and a magnet.

[0125] The lens drive device 10 may include an AF drive unit 500. The AF drive unit 500 can move the AF moving unit 200 in the optical axis direction. The AF drive unit 500 can move the AF carrier 210 in the optical axis direction. The AF drive unit 500 can move the AF carrier 210 in the optical axis direction through electromagnetic force. The AF drive unit 500 may include a coil and a magnet. The AF drive unit 500 may include a coil and a magnet that interact with each other. The AF coil 520 and the AF magnet 510 can move the AF moving unit 200 in the optical axis direction.

[0126] When the OIS-y carrier 410 moves in the x-axis direction, the distance between the AF magnet 510 and the AF coil 520 can be maintained. When the OIS-y carrier 410 moves in the y-axis direction, the distance between the AF magnet 510 and the AF coil 520 can be maintained.

[0127] When the OIS-y moving unit 400 and the AF moving unit 200 are moved by the OIS-y drive unit 700, the distance between the opposing surfaces of the AF coil 520 and the AF magnet 510 does not change, and the AF magnet 510 may be eccentric with respect to the AF coil 520.

[0128] The lens drive device 10 may include an AF magnet 510. The AF drive unit 500 may include an AF magnet 510. The AF magnet 510 may be placed on the AF moving unit 200. The AF magnet 510 may be placed on the AF carrier 210. The AF magnet 510 may be placed in a groove of the AF carrier 210. The AF magnet 510 may be placed on the outer surface of the AF carrier 210. The AF magnet 510 may be fixed to the AF carrier 210. The AF magnet 510 may be coupled to the AF carrier 210. The AF magnet 510 may be bonded to the AF carrier 210 with adhesive. The AF magnet 510 may be placed inside the cover 120. The AF magnet 510 may interact with the AF coil 520. The AF magnet 510 may have electromagnetic interactions with the AF coil 520. The AF magnet 510 may be placed in a position corresponding to the AF coil 520. The AF magnet 510 may face the AF coil 520. The AF magnet 510 can face the AF coil 520. The AF magnet 510 can overlap with the AF coil 520 in a direction perpendicular to the optical axis. The AF magnet 510 can overlap with the AF coil 520 in the x-axis direction. In the x-axis direction, the AF magnet 510 can overlap with the OIS-x magnet 610.

[0129] A C-cut may be applied to the AF magnet 510 for a greater attractive force than that of the AF attractive yoke 910. A structure may be applied to the AF magnet 510 for sending magnetic force in the direction of the AF attractive yoke 910. The AF magnet 510 may include a first face facing the AF coil 520 and a second face opposite the first face. In the y-axis direction, the width of the first face of the AF magnet 510 (see W1 in Figure 20) may be smaller than the width of the second face of the AF magnet 510 (see W2 in Figure 20). The AF magnet 510 may include a chamfered edge shape.

[0130] The AF magnet 510 can be a two-pole magnet. The AF magnet 510 can have a north pole and a south pole. The upper surface of the AF magnet 510 can have a north pole, and the lower surface of the AF magnet 510 can have a south pole.

[0131] In a modified form, the AF magnet 510 can be a four-pole magnet. The AF magnet 510 may include a four-pole magnetized magnet. The AF magnet 510 may include a first magnet section including an N pole and a S pole, and a second magnet section including an N pole and a S pole. The first magnet section and the second magnet section may be arranged vertically. The first magnet section and the second magnet section may be spaced apart vertically, with a neutral section positioned between the first magnet section and the second magnet section.

[0132] The lens drive device 10 may include an AF coil 520. The AF drive unit 500 may include an AF coil 520. The AF coil 520 can interact with the AF magnet 510. The AF coil 520 can move the AF magnet 510 in the optical axis direction. The AF coil 520 can move the AF magnet 510 in the optical axis direction through interaction with the AF magnet 510. The AF coil 520 can face the AF magnet 510. The AF coil 520 can be positioned opposite the AF magnet 510. The AF coil 520 can be positioned in a position corresponding to the AF magnet 510. The AF coil 520 can overlap the AF magnet 510 in the x-axis direction. The AF coil 520 can be positioned in the OIS-y moving unit 400. The AF coil 520 can be positioned in the OIS-y carrier 410. The AF coil 520 can move together with the OIS-y carrier 410. The AF coil 520 can move together with the OIS-y carrier 410 when the OIS-y carrier 410 moves. The AF coil 520 can be positioned between the AF magnet 510 and the cover 120. The AF coil 520 can be positioned on the substrate 850. The AF coil 520 can be positioned in the inner part 852 of the substrate 850.

[0133] The lens drive device 10 may include an AF sensor 530. The AF drive unit 500 may include an AF sensor 530. The AF sensor 530 may be located on a substrate 850. The AF sensor 530 may be located on the inner part 852 of the substrate 850. The AF sensor 530 may include a Hall element (Hall IC). The AF sensor 530 may include a Hall sensor. The AF sensor 530 may sense an AF magnet 510. The AF sensor 530 may sense the magnetic force of the AF magnet 510. The AF sensor 530 may sense the movement of the AF magnet 510. The amount of movement or position of the AF magnet 510 sensed by the AF sensor 530 may be used for autofocus (AF) feedback.

[0134] The AF sensor 530 can be positioned inside the AF coil 520. The AF sensor 530 can overlap with the AF coil 520 in the optical axis direction. The AF sensor 530 can overlap with the AF magnet 510 in the x axis direction. In a modified example, the AF sensor 530 can be positioned outside the AF coil 520. The AF sensor 530 can face the AF magnet 510. The AF sensor 530 can be positioned in a position corresponding to the AF magnet 510.

[0135] The AF sensor 530 may include a drive IC. In this case, the drive IC can be electrically connected to the AF coil 520. The drive IC can apply current to the AF coil 520.

[0136] The lens drive unit 10 may include a capacitor. The capacitor may be placed on the substrate 850. The capacitor may be placed next to the AF sensor 530. The capacitor may be placed inside the AF coil 520. The capacitor can remove noise associated with the data and current transmitted and received by the AF sensor 530.

[0137] The lens drive device 10 may include an OIS-x drive unit 600. The OIS-x drive unit 600 can move the OIS-x moving unit 300 in an x-axis direction perpendicular to the optical axis direction and the y-axis direction. The OIS-x drive unit 600 can move the OIS-x carrier 310 in an x-axis direction perpendicular to the optical axis direction. The OIS-x drive unit 600 can move the OIS-x carrier 310 in an x-axis direction. The OIS-x drive unit 600 can move the OIS-x carrier 310 in an x-axis direction via electromagnetic force. The OIS-x drive unit 600 may include a coil and a magnet. The OIS-x coil 620 and the OIS-x magnet 610 can move the OIS-x moving unit 300 in an x-axis direction perpendicular to the optical axis direction and the y-axis direction.

[0138] When the OIS-x moving unit 300 is moved by the OIS-x drive unit 600, the AF moving unit 200 and the OIS-y moving unit 400 can move together with the OIS-x moving unit 300. The AF moving unit 200 and the OIS-y moving unit 400 can move together with the OIS-x moving unit 300 in the x-axis direction. When the OIS-x carrier 310 moves in the x-axis direction, the OIS-x carrier 310, the OIS-y carrier 410, and the AF carrier 210 can move together.

[0139] The lens drive unit 10 may include an OIS-x magnet 610. The OIS-x drive unit 600 may include an OIS-x magnet 610. The OIS-x magnet 610 may be placed in the OIS-x moving unit 300. The OIS-x magnet 610 may be placed in the OIS-x carrier 310. The OIS-x magnet 610 may be placed in the groove 315 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 bonded to the OIS-x carrier 310 with adhesive. The OIS-x magnet 610 may be placed inside the cover 120. The OIS-x magnet 610 may interact with the OIS-x coil 620. The OIS-x magnet 610 may have electromagnetic interactions with the OIS-x coil 620. The OIS-x magnet 610 can be positioned in a location corresponding to the OIS-x coil 620. The OIS-x magnet 610 can face the OIS-x coil 620. The OIS-x magnet 610 can be positioned opposite the OIS-x coil 620. The OIS-x magnet 610 can overlap the OIS-x coil 620 in the optical axis direction.

[0140] The OIS-x magnet 610 can be a two-pole magnet. The OIS-x magnet 610 can have a north pole and a south pole. The inner surface of the OIS-x magnet 610 can have a north pole, and the outer surface of the OIS-x magnet 610 can have a south pole.

[0141] In a modified form, the OIS-x magnet 610 can be a four-pole magnet. The OIS-x magnet 610 may include a four-pole magnetized magnet. The OIS-x magnet 610 may include a first magnet section containing a north pole and a south pole, and a second magnet section containing a north pole and a south pole. The first magnet section and the second magnet section may be arranged horizontally. The first magnet section and the second magnet section may be spaced apart horizontally, with a neutral section positioned between the first magnet section and the second magnet section.

[0142] In this embodiment, even when the OIS-x magnet 610 moves due to the interaction between the OIS-x coil 620 and the OIS-x magnet 610, the distance between the OIS-x coil 620 and the OIS-x magnet 610 can be maintained at a constant level.

[0143] The lens drive device 10 may include an OIS-x coil 620. The OIS-x drive unit 600 may include an OIS-x coil 620. The OIS-x coil 620 can interact with the OIS-x magnet 610. The OIS-x coil 620 can move the OIS-x magnet 610 in the x-axis direction. The OIS-x coil 620 can move the OIS-x magnet 610 in the x-axis direction through interaction with the OIS-x magnet 610. The OIS-x coil 620 can face the OIS-x magnet 610. The OIS-x coil 620 can face the OIS-x magnet 610. The OIS-x coil 620 can be positioned in a position corresponding to the OIS-x magnet 610. The OIS-x coil 620 can be placed on the substrate 140 in a position corresponding to the OIS-x magnet 610. The OIS-x coil 620 can be placed on the base 110. The OIS-x coil 620 can be placed on the fixing part 100.

[0144] The lens drive unit 10 may include an OIS-x sensor 630. The OIS-x drive unit 600 may include an OIS-x sensor 630. The OIS-x sensor 630 may be placed on the substrate 140. The OIS-x sensor 630 may include a Hall element (Hall IC). The OIS-x sensor 630 may include a Hall sensor. The OIS-x sensor 630 may sense the OIS-x magnet 610. The OIS-x sensor 630 may sense the magnetic force of the OIS-x magnet 610. The OIS-x sensor 630 may sense the movement of the OIS-x magnet 610. The amount of movement or position of the OIS-x magnet 610 sensed by the OIS-x sensor 630 may be used for feedback of hand shake correction drive (OIS) in the x-axis direction.

[0145] The OIS-x sensor 630 can be positioned inside the OIS-x coil 620. The OIS-x sensor 630 can overlap with the OIS-x coil 620 in a direction perpendicular to the optical axis. The OIS-x sensor 630 can overlap with the OIS-x magnet 610 in the direction of the optical axis. In a modified example, the OIS-x sensor 630 can be positioned outside the OIS-x coil 620. The OIS-x sensor 630 can face the OIS-x magnet 610. The OIS-x sensor 630 can be positioned in a position corresponding to the OIS-x magnet 610.

[0146] The lens drive unit 10 may include an OIS-y drive unit 700. The OIS-y drive unit 700 can move the OIS-y moving unit 400 in a y-axis direction perpendicular to the optical axis direction and the x-axis direction. The OIS-y drive unit 700 can move the OIS-y carrier 410 in a y-axis direction perpendicular to the optical axis direction and the x-axis direction. The OIS-y drive unit 700 can move the OIS-y carrier 410 in the y-axis direction. The OIS-y drive unit 700 can move the OIS-y carrier 410 in the y-axis direction via electromagnetic force. The OIS-y drive unit 700 may include a coil and a magnet. The OIS-y coil 720 and the OIS-y magnet 710 can move the OIS-y moving unit 400 in a y-axis direction perpendicular to the optical axis direction.

[0147] When the OIS-y moving unit 400 is moved by the OIS-y drive unit 700, the AF moving unit 200 can move together with the OIS-y moving unit 400. The AF moving unit 200 can move together with the OIS-y moving unit 400 in the y-axis direction. When the OIS-y carrier 410 moves in the y-axis direction, the OIS-y carrier 410 and the AF carrier 210 can move together.

[0148] The lens drive unit 10 may include an OIS-y magnet 710. The OIS-y drive unit 700 may include an OIS-y magnet 710. The OIS-y magnet 710 may be placed in the OIS-y moving unit 400. The OIS-y magnet 710 may be placed in the OIS-y carrier 410. The OIS-y magnet 710 may be placed in the groove 413 of the OIS-y carrier 410. The OIS-y magnet 710 may be placed on the outer 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 bonded to the OIS-y carrier 410 with adhesive. The OIS-y magnet 710 may be placed inside the cover 120. The OIS-y magnet 710 may interact with the OIS-y coil 720. The OIS-y magnet 710 can interact electromagnetically with the OIS-y coil 720. The OIS-y magnet 710 can be positioned in a position corresponding to the OIS-y coil 720. The OIS-y magnet 710 can face the OIS-y coil 720. The OIS-y magnet 710 can be opposite the OIS-y coil 720. The OIS-y magnet 710 can overlap the OIS-y coil 720 in the optical axis direction.

[0149] The OIS-y magnet 710 can be a two-pole magnet. The OIS-y magnet 710 can have a north pole and a south pole. The inner surface of the OIS-y magnet 710 can have a north pole, and the outer surface of the OIS-y magnet 710 can have a south pole.

[0150] In a modified form, the OIS-y magnet 710 can be a four-pole magnet. The OIS-y magnet 710 may include a four-pole magnetized magnet. The OIS-y magnet 710 may include a first magnet section including a north pole and a south pole, and a second magnet section including a north pole and a south pole. The first magnet section and the second magnet section may be arranged horizontally. The first magnet section and the second magnet section may be spaced apart horizontally, with a neutral section positioned between the first magnet section and the second magnet section.

[0151] The lens drive unit 10 may include an OIS-y coil 720. The OIS-y drive unit 700 may include an OIS-y coil 720. The OIS-y coil 720 can interact with the OIS-y magnet 710. The OIS-y coil 720 can move the OIS-y magnet 710 in the y-axis direction. The OIS-y coil 720 can move the OIS-y magnet 710 in the y-axis direction through interaction with the OIS-y magnet 710. The OIS-y coil 720 can face the OIS-y magnet 710. The OIS-y coil 720 can face the OIS-y magnet 710. The OIS-y coil 720 can be positioned in a position corresponding to the OIS-y magnet 710. The OIS-y coil 720 can be placed on the substrate 140 in a position corresponding to the OIS-y magnet 710. The OIS-y coil 720 can be placed on the base 110. The OIS-y coil 720 can be placed on the fixing part 100.

[0152] The lens drive unit 10 may include an OIS-y sensor 730. The OIS-y drive unit 700 may include an OIS-y sensor 730. The OIS-y sensor 730 may be placed on the substrate 140. The OIS-y sensor 730 may include a Hall element (Hall IC). The OIS-y sensor 730 may include a Hall sensor. The OIS-y sensor 730 may sense the OIS-y magnet 710. The OIS-y sensor 730 may sense the magnetic force of the OIS-y magnet 710. The OIS-y sensor 730 may sense the movement of the OIS-y magnet 710. The amount of movement or position of the OIS-y magnet 710 sensed by the OIS-y sensor 730 may be used for feedback of the hand shake correction drive (OIS) in the y-axis direction.

[0153] The OIS-y sensor 730 can be positioned inside the OIS-y coil 720. The OIS-y sensor 730 can overlap with the OIS-y coil 720 in a direction perpendicular to the optical axis. The OIS-y sensor 730 can overlap with the OIS-y magnet 710 in the direction of the optical axis. In a modified example, the OIS-y sensor 730 can be positioned outside the OIS-y coil 720. The OIS-y sensor 730 can face the OIS-y magnet 710. The OIS-y sensor 730 can be positioned in a position corresponding to the OIS-y magnet 710.

[0154] The lens drive device 10 may include a guide member. The guide member may include a ball. The guide member may include a pin. The guide member may include a cylindrical member. The guide member can guide the movement of the movable part relative to the fixed part 100 in a specific direction.

[0155] The lens drive device 10 may include a support member. The support member may include a ball.

[0156] The lens drive device 10 may include an AF guide ball 810. The AF guide ball 810 can guide the movement of the AF moving unit 200 in the optical axis direction. The AF guide ball 810 can guide the movement of the AF carrier 210 in the optical axis direction. The AF guide ball 810 can guide the movement of the AF carrier 210 relative to the OIS-y carrier 410 in the optical axis direction. The AF guide ball 810 may be positioned between the AF moving unit 200 and the OIS-y moving unit 400. The AF moving unit 200 and the OIS-y moving unit 400 may include grooves 211 and 411 extending in the optical axis direction. The AF guide ball 810 may be positioned between the groove of the AF moving unit 200 and the groove 411 of the OIS-y moving unit 400. The AF guide ball 810 may be positioned between the OIS-y carrier 410 and the AF carrier 210. The AF guide ball 810 can be positioned between the OIS-y carrier 410 and the AF carrier 210 in the x-axis direction. The AF guide ball 810 can be positioned between the inner surface of the OIS-y carrier 410 and the outer surface of the AF carrier 210. When viewed from the outside of the AF carrier 210, the AF guide ball 810 can overlap horizontally with the AF magnet 510.

[0157] The AF guide ball 810 can be positioned between the groove 411 of the OIS-y moving part 400 and the groove of the AF moving part 200. At least one of the grooves 411 of the OIS-y moving part 400 and the groove of the AF moving part 200 can extend longer than the diameter of the AF guide ball 810 in the optical axis direction.

[0158] The AF guide ball 810 can be placed in the groove 411 of the OIS-y carrier 410. The AF guide ball 810 can be placed in the groove of the AF carrier 210. The AF guide ball 810 may include a first-first ball that contacts the OIS-y carrier 410 and the AF carrier 210 at four points, and a second-second ball that contacts the OIS-y carrier 410 and the AF carrier 210 at three points. The AF guide ball 810 may be spherical. The AF guide ball 810 may be made of metal. Grease may be applied to the surface of the AF guide ball 810.

[0159] The AF guide ball 810 may include multiple balls. The AF guide ball 810 may include four balls. Two AF guide balls 810 may be placed on one side of the AF magnet 510, and the remaining two AF guide balls 810 may be placed on the other side of the AF magnet 510. The AF guide ball 810 may include multiple unit balls. The AF guide ball 810 may include a ball section containing multiple unit balls.

[0160] The lens drive device 10 may include an OIS-x guide ball 820. The OIS-x guide ball 820 can guide the movement of the OIS-x moving part 300 in the x-axis direction. The OIS-x guide ball 820 can guide the movement of the OIS-x carrier 310 in the x-axis direction. The OIS-x guide ball 820 can guide the movement of the OIS-x carrier 310 relative to the base 110 in the x-axis direction. The OIS-x guide ball 820 may be positioned between the OIS-x moving part 300 and the fixed part 100. The OIS-x guide ball 820 may be in contact with the OIS-x moving part 300 and the fixed part 100. The OIS-x moving part 300 and the fixed part 100 may include grooves 111 and 312 extending in the x-axis direction. The OIS-x guide ball 820 may be positioned between the groove 312 of the OIS-x moving part 300 and the groove 111 of the fixed part 100. The OIS-x guide ball 820 can be positioned between the base 110 and the OIS-x carrier 310. The OIS-x guide ball 820 can be in contact with the base 110 and the OIS-x carrier 310. The OIS-x guide ball 820 can be positioned between the base 110 and the OIS-x carrier 310 in the direction of the optical axis.

[0161] The OIS-x guide ball 820 can be positioned between the groove 111 of the base 110 and the groove 312 of the OIS-x movable part 300. At least one of the groove 111 of the base 110 and the groove 312 of the OIS-x movable part 300 can extend in the x-axis direction longer than the diameter of the OIS-x guide ball 820.

[0162] The OIS-x guide ball 820 can be positioned in the groove 111 of the base 110. The OIS-x guide ball 820 can be positioned in the groove 312 of the OIS-x carrier 310. The OIS-x guide ball 820 may include a first-first ball that contacts the base 110 and the OIS-x carrier 310 at four points, and a second-second ball that contacts the base 110 and the OIS-x carrier 310 at three points. The OIS-x guide ball 820 may be spherical. The OIS-x guide ball 820 may be made of metal. Grease may be applied to the surface of the OIS-x guide ball 820.

[0163] The OIS-x guide ball 820 can contain multiple balls. The OIS-x guide ball 820 can contain four balls. The four balls can be positioned in the four corner areas on the upper surface of the base 110. The OIS-x guide ball 820 can contain multiple unit balls. The OIS-x guide ball 820 can contain a ball section containing multiple unit balls.

[0164] The lens drive device 10 may include an OIS-y guide ball 830. The OIS-y guide ball 830 can guide the movement of the OIS-y moving unit 400 in the y-axis direction. The OIS-y guide ball 830 can guide the movement of the OIS-y carrier 410 in the y-axis direction. The OIS-y guide ball 830 can 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 ball 830 can be positioned between the OIS-y moving unit 400 and the OIS-x carrier 310. The OIS-y guide ball 830 can be in contact with the OIS-y moving unit 400 and the OIS-x carrier 310. The OIS-y guide ball 830 can be positioned between the OIS-y moving unit 400 and the OIS-x carrier 310 in the optical axis direction. The OIS-y moving section 400 and the OIS-x moving section 300 may include grooves 311 and 412 extending in the y-axis direction. The OIS-y guide ball 830 can be positioned between groove 412 of the OIS-y moving section 400 and groove 311 of the OIS-x moving section 300. The OIS-y guide ball 830 can be positioned between the OIS-x carrier 310 and the OIS-y carrier 410. The OIS-y guide ball 830 can contact the OIS-x carrier 310 and the OIS-y carrier 410. The OIS-y guide ball 830 can be positioned between the OIS-x carrier 310 and the OIS-y carrier 410 in the optical axis direction.

[0165] The OIS-y guide ball 830 can be positioned in the groove 311 of the OIS-x carrier 310. The OIS-y guide ball 830 can be positioned between the upper surface of the OIS-x carrier 310 and the lower surface of the OIS-y carrier 410. The OIS-y guide ball 830 can be positioned between the groove 311 of the OIS-x moving part 300 and the groove 412 of the OIS-y moving part 400. At least one of the groove 311 of the OIS-x moving part 300 and the groove 412 of the OIS-y moving part 400 can extend in the y-axis direction longer than the diameter of the OIS-y guide ball 830.

[0166] The OIS-y guide ball 830 can be placed in the groove 311 of the OIS-x carrier 310. The OIS-y guide ball 830 can be placed in the groove 412 of the OIS-y carrier 410. The OIS-y guide ball 830 may include a first-first ball that contacts the OIS-x carrier 310 and the OIS-y carrier 410 at four points, and a second-second ball that contacts the OIS-x carrier 310 and the OIS-y carrier 410 at three points. The OIS-y guide ball 830 may be spherical. The OIS-y guide ball 830 may be made of metal. Grease may be applied to the surface of the OIS-y guide ball 830.

[0167] The OIS-y guide ball 830 can contain multiple balls. The OIS-y guide ball 830 can contain four balls. The four balls can be positioned in the four corner areas on the upper surface of the OIS-x carrier 310. The OIS-y guide ball 830 can contain multiple unit balls. The OIS-y guide ball 830 can contain a ball section containing multiple unit balls.

[0168] The lens drive device 10 may include an OIS guide ball 840. The OIS guide ball 840 can be positioned between the OIS-y carrier 410 and the base 110. The OIS guide ball 840 can contact the OIS-y carrier 410 and the base 110. The OIS guide ball 840 can support the OIS-y carrier 410 so that it can move relative to the base 110. The OIS guide ball 840 can support the OIS-y carrier 410 so that it can move relative to the base 110 in both the x-axis and y-axis directions.

[0169] The lens drive device 10 may include a substrate 850. The substrate 850 can connect the OIS-y carrier 410 and the base 110. The substrate 850 can elastically connect the OIS-y carrier 410 and the base 110. The substrate 850 can be connected so that the OIS-y carrier 410 can move relative to the base 110. The substrate 850 may be flexible. The substrate 850 may have a curved shape. The substrate 850 may have a folded shape. The substrate 850 can be bent. The substrate 850 may be elastic. The substrate 850 may be a flexible printed circuit board. The substrate 850 may be an FPCB (flexible printed circuit board).

[0170] The substrate 850 may include an outer portion 851. The outer portion 851 may be placed on the base 110. The outer portion 851 may be fixed to the base 110. The outer portion 851 may be bonded to the base 110. The outer portion 851 may be bonded to the base 110 with adhesive. The outer portion 851 may be placed on the side plate 122 of the cover 120.

[0171] The outer portion 851 may include a terminal 851-1. The terminal 851-1 may be formed at the lower end of the outer portion 851. The terminal 851-1 may be coupled to the printed circuit board 50 of the camera device 10A. The terminal 851-1 may be coupled to the printed circuit board 50 of the camera device 10A by solder.

[0172] The substrate 850 may include an inner portion 852. The inner portion 852 may be placed on the OIS-y carrier 410. The inner portion 852 may be fixed to the OIS-y carrier 410. The inner portion 852 may be coupled to the OIS-y carrier 410. The inner portion 852 may be bonded to the OIS-y carrier 410 with an adhesive. The inner portion 852 may move together with the OIS-y carrier 410.

[0173] The inner portion 852 may include terminal 852-1. Terminal 852-1 can be coupled to the AF coil 520. Terminal 852-1 may be formed on the inner surface of the inner portion 852. Terminal 852-1 can be coupled to the AF coil 520 by solder. The substrate 850 may be positioned adjacent to terminal 852-1 and may include a avoidance portion to prevent interference with one or more of the start and end wires of the AF coil 520.

[0174] The substrate 850 may include a connecting portion 853. The connecting portion 853 can connect the outer portion 851 and the inner portion 852. The connecting portion 853 can elastically connect the outer portion 851 and the inner portion 852. The connecting portion 853 can be connected so that the inner portion 852 can move relative to the outer portion 851.

[0175] The connecting portion 853 may be bent. The connecting portion 853 may be bent once. The connecting portion 853 may be bent a total of one time. In modified examples, the connecting portion 853 may be bent multiple times. The connecting portion 853 may be flexible. The connecting portion 853 may have a curved shape. The connecting portion 853 may be bent. The connecting portion 853 may be elastic.

[0176] The lens drive device 10 may include a ball pressurizing member. The ball pressurizing member may include a yoke. The yoke may be an "attraction yoke". The yoke may be an "attraction member". The yoke may be made of metal. An attractive force may be generated between the yoke and the magnets 510, 610, and 710. The attractive force between the yoke and the magnets 510, 610, and 710 may pressurize the balls 810, 820, and 830.

[0177] The lens drive device 10 may include a magnetic member. The magnetic member may include a yoke.

[0178] A yoke can include multiple yokes. A yoke can include three yokes. A yoke can include an AF gravity yoke 910, an OIS-x gravity yoke 920, and an OIS-y gravity yoke 930. The AF gravity yoke 910, OIS-x gravity yoke 920, and OIS-y gravity yoke 930 can be separated from each other.

[0179] The lens drive device 10 may include an AF attraction yoke 910. The AF attraction yoke 910 can be located on the OIS-y moving part 400. The AF attraction yoke 910 can be located on the substrate 850. The AF attraction yoke 910 can be located on the outer surface of the substrate 850. The AF attraction yoke 910 can be located on the OIS-y carrier 410. The AF attraction yoke 910 can be coupled to the OIS-y carrier 410. The AF attraction yoke 910 can be fixed to the OIS-y carrier 410. The AF attraction yoke 910 can be bonded to the OIS-y carrier 410 with adhesive. The AF attraction yoke 910 can be located on the outer surface of the OIS-y carrier 410. The AF attraction yoke 910 can be located in a position corresponding to the AF magnet 510. An attractive force can act between the AF attraction yoke 910 and the AF magnet 510. An attractive force can be generated between the AF attractive yoke 910 and the AF magnet 510. The attractive force between the AF attractive yoke 910 and the AF magnet 510 can pressurize the AF guide ball 810. The attractive force between the AF attractive yoke 910 and the AF magnet 510 can pressurize the AF guide ball 810 between the AF carrier 210 and the OIS-y carrier 410. The attractive force between the AF magnet 510 and the AF attractive yoke 910 can pressurize the AF guide ball 810 between the AF moving part 200 and the OIS-y moving part 400. The AF guide ball 810 can be brought into close contact with the AF moving part 200 and the OIS-y moving part 400.

[0180] The lens drive device 10 may include an OIS-x attraction yoke 920. The OIS-x attraction yoke 920 may be placed on the fixed part 100. The OIS-x attraction yoke 920 may be placed on the base 110. The OIS-x attraction yoke 920 may be coupled to the base 110. The OIS-x attraction yoke 920 may be fixed to the base 110. The OIS-x attraction yoke 920 may be bonded to the base 110 with adhesive. The OIS-x attraction yoke 920 may be placed on the substrate 140. The OIS-x attraction yoke 920 may be coupled to the substrate 140. The OIS-x attraction yoke 920 may be fixed to the substrate 140. The OIS-x attraction yoke 920 may be bonded to the substrate 140 with adhesive. The OIS-x attraction yoke 920 may be placed between the base 110 and the substrate 140. The OIS-x gravity yoke 920 can be placed in the groove of the base 110.

[0181] The OIS-x attraction yoke 920 can be positioned in a location corresponding to the OIS-x magnet 610. An attractive force can act between the OIS-x attraction yoke 920 and the OIS-x magnet 610. An attractive force can be generated between the OIS-x attraction yoke 920 and the OIS-x magnet 610. The attractive force between the OIS-x attraction yoke 920 and the OIS-x magnet 610 can pressurize the OIS-x guide ball 820. The attractive force between the OIS-x attraction yoke 920 and the OIS-x magnet 610 can pressurize the OIS-x guide ball 820 between the OIS-x carrier 310 and the base 110. The OIS-x guide ball 820 can be brought into close contact with the OIS-x carrier 310 and the base 110.

[0182] The OIS-x gravitational yoke 920 can include multiple yokes. The OIS-x gravitational yoke 920 can include multiple yokes spaced apart from each other. The OIS-x gravitational yoke 920 can include a first unit yoke 921 and a second unit yoke 922. The first unit yoke 921 can be placed on the base 110. The second unit yoke 922 can be placed on the base 110. The first unit yoke 921 can be spaced apart from the second unit yoke 922. The first unit yoke 921 and the second unit yoke 922 can be formed in the same shape. The first unit yoke 921 and the second unit yoke 922 can be formed in the same length. The first unit yoke 921 and the second unit yoke 922 can be placed side by side.

[0183] The lens drive device 10 may include an OIS-y attraction yoke 930. The OIS-y attraction yoke 930 may be placed on the fixed part 100. The OIS-y attraction yoke 930 may be placed on the base 110. The OIS-y attraction yoke 930 may be coupled to the base 110. The OIS-y attraction yoke 930 may be fixed to the base 110. The OIS-y attraction yoke 930 may be bonded to the base 110 with adhesive. The OIS-y attraction yoke 930 may be placed on the substrate 140. The OIS-y attraction yoke 930 may be coupled to the substrate 140. The OIS-y attraction yoke 930 may be fixed to the substrate 140. The OIS-y attraction yoke 930 may be bonded to the substrate 140 with adhesive. The OIS-y attraction yoke 930 may be placed between the base 110 and the substrate 140. The OIS-y gravity yoke 930 can be placed in the groove of the base 110.

[0184] The OIS-y attraction yoke 930 can be positioned in a location corresponding to the OIS-y magnet 710. An attractive force can act between the OIS-y attraction yoke 930 and the OIS-y magnet 710. An attractive force can be generated between the OIS-y attraction yoke 930 and the OIS-y magnet 710. The attractive force between the OIS-y attraction yoke 930 and the OIS-y magnet 710 can pressurize the OIS-y guide ball 830. The attractive force between the OIS-y attraction yoke 930 and the OIS-y magnet 710 can pressurize the OIS-y guide ball 830 between the OIS-y carrier 410 and the OIS-x carrier 310. The OIS-y guide ball 830 can be brought into close contact with the OIS-y carrier 410 and the OIS-x carrier 310.

[0185] The OIS-y gravitational yoke 930 can include multiple yokes. The OIS-y gravitational yoke 930 can include multiple yokes spaced apart from each other. The OIS-y gravitational yoke 930 can include a first unit yoke 931 and a second unit yoke 932. The first unit yoke 931 can be placed on the base 110. The second unit yoke 932 can be placed on the base 110. The first unit yoke 931 can be spaced apart from the second unit yoke 932. The first unit yoke 931 and the second unit yoke 932 can be formed in the same shape. The first unit yoke 931 and the second unit yoke 932 can be formed in the same length. The first unit yoke 931 and the second unit yoke 932 can be placed side by side.

[0186] The lens drive unit 10 may include an additional OIS-y attraction yoke 950. The additional OIS-y attraction yoke 950 can exert an attractive force on the attraction magnet 955. The additional OIS-y attraction yoke 950 can be positioned in a location corresponding to the attraction magnet 955. The additional OIS-y attraction yoke 950 can be positioned in a location corresponding to the attraction magnet 955 so that an attractive force acts on the attraction magnet 955. The additional OIS-y attraction yoke 950 can be placed on the fixed part 100. The additional OIS-y attraction yoke 950 can be placed on the base 110. The additional OIS-y attraction yoke 950 can be placed on the substrate 140. The additional OIS-y attraction yoke 950 can be placed between the substrate 140 and the base 110. The additional OIS-y attraction yoke 950 can pull the attraction magnet 955 downwards. As a result, the OIS-y moving section 400, on which the attractive magnet 955 is located, can be pressed downwards.

[0187] The lens drive unit 10 may include an attractive magnet 955. The attractive magnet 955 may be located on the OIS-y moving part 400. The attractive magnet 955 may be located on the OIS-y carrier 410. The attractive magnet 955 may be located on the protruding part 415 of the OIS-y moving part 400. The attractive magnet 955 may overlap with an additional OIS-y attractive yoke 950 in the optical axis direction. The attractive magnet 955 may be located in a position corresponding to the additional OIS-y attractive yoke 950. The attractive magnet 955 may be formed in a size smaller than the drive magnets 510, 610, and 710. The attractive magnet 955 does not have to overlap with the coil in the optical axis direction. The attractive magnet 955 may be positioned so as not to interact with the coil.

[0188] In a modified configuration, the attractive magnet 955 and the additional OIS-y attractive yoke 950 can be positioned opposite each other. That is, the attractive magnet 955 can be placed on the base 110, and the additional OIS-y attractive yoke 950 can be placed on the OIS-y carrier 410.

[0189] In this embodiment, the attraction magnet 955 and the additional OIS-y attraction yoke 950 can prevent tilting of the OIS-x carrier 310 and the OIS-y carrier 410. If the attraction magnet 955 and the additional OIS-y attraction yoke 950 are not provided, the OIS-x carrier 310 may tilt (see Figure 25c) around a straight line connecting the first region (see Figure 25a) and the second region (see Figure 25b) where the OIS-x carrier 310 and the ball are in contact. Also, if the attraction magnet 955 and the additional OIS-y attraction yoke 950 are not provided, the OIS-y carrier 410 may tilt (see Figure 25f) around a straight line connecting the first region (see Figure 25d) and the second region (see Figure 25e) where the OIS-y carrier 410 and the ball are in contact. The attractive magnet 955 and the additional OIS-y attractive yoke 950 may enable at least three-point support between the fixed and movable parts.

[0190] The autofocus (AF) drive of the lens drive device according to this embodiment will be described below with reference to the drawings.

[0191] Figures 28 to 30 are diagrams illustrating the autofocus drive of the lens drive device according to this embodiment. Figure 28 is a cross-sectional view illustrating the state of the AF moving part in the initial state when no current is applied to the AF coil. Figure 29 is a cross-sectional view illustrating the state when a positive current is applied to the AF coil and the AF moving part moves upward in the optical axis direction. Figure 30 is a cross-sectional view illustrating the state when a reverse current is applied to the AF coil and the AF moving part moves downward in the optical axis direction.

[0192] The movable part can be positioned in an initial position where no current is applied to the AF coil 520, and is separated from both the upper plate 121 of the cover 120 and the base 110. In this case, the movable part can be the AF movable part 200.

[0193] When a positive current is applied to the AF coil 520, the electromagnetic interaction between the AF coil 520 and the AF magnet 510 allows the AF magnet 510 to move upward in the optical axis direction (see Figure 29A). At this time, the AF carrier 210 can move upward in the optical axis direction along with the AF magnet 510. In addition, the lens can move upward in the optical axis direction along with the AF carrier 210. This changes the distance between the lens and the image sensor, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0194] When a reverse current is applied to the AF coil 520, the electromagnetic interaction between the AF coil 520 and the AF magnet 510 allows the AF magnet 510 to move downward in the optical axis direction (see Figure 30B). At this time, the AF carrier 210 can move downward in the optical axis direction along with the AF magnet 510. In addition, the lens can move downward in the optical axis direction along with the AF carrier 210. This changes the distance between the lens and the image sensor, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0195] Meanwhile, during the movement of the AF magnet 510, the AF sensor 530 can sense the strength of the magnetic field of the AF magnet 510 and detect the amount of movement and position of the AF magnet 510. The amount of movement and position of the AF magnet 510 detected by the AF sensor 530 can be used for autofocus feedback control.

[0196] In the following section, the optical image stabilization (OIS) drive of the lens drive device according to this embodiment will be described with reference to the drawings.

[0197] Figures 31 to 33 are diagrams illustrating the hand shake correction drive of the lens drive device according to this embodiment. Figure 31 is a cross-sectional view illustrating the movement of the moving parts in the initial state when no current is applied to the OIS-x coil and OIS-y coil. Figure 32 is a cross-sectional view illustrating the movement of the OIS-x moving part, OIS-y moving part, and AF moving part in the x-axis direction perpendicular to the optical axis when current is applied to the OIS-x coil. Figure 33 is a cross-sectional view illustrating the movement of the OIS-y moving part and AF moving part in the y-axis direction perpendicular to the optical axis when current is applied to the OIS-y coil.

[0198] As shown in Figure 31, the moving part can be positioned in an initial position where no current is applied to the OIS-x coil 620 and the OIS-y coil 720. In this case, the moving part can be the OIS-x moving part 300 and the OIS-y moving part 400. Alternatively, the moving part can include the AF moving part 200, the OIS-x moving part 300, and the OIS-y moving part 400.

[0199] When current is applied to the OIS-x coil 620, the electromagnetic interaction between the OIS-x coil 620 and the OIS-x magnet 610 allows the OIS-x magnet 610 to move in the x-axis direction perpendicular to the optical axis (see Figure 32A). At this time, the OIS-x carrier 310 can move in the x-axis direction along with the OIS-x magnet 610. In addition, the OIS-y carrier 410, AF carrier 210, and lens can move in the x-axis direction along with the OIS-x carrier 310. More specifically, when a positive current is applied to the OIS-x coil 620, the OIS-x magnet 610, OIS-x carrier 310, OIS-y carrier 410, AF carrier 210, and lens can move in one direction along the x-axis. Furthermore, when a reverse current is applied to the OIS-x coil 620, the OIS-x magnet 610, OIS-x carrier 310, OIS-y carrier 410, AF carrier 210, and lens can move in other directions along the x-axis.

[0200] When current is applied to the OIS-y coil 720, the electromagnetic interaction between the OIS-y coil 720 and the OIS-y magnet 710 allows the OIS-y magnet 710 to move in the y-axis direction perpendicular to the optical axis (see Figure 33B). At this time, the OIS-y carrier 410 can move in the y-axis direction along with the OIS-y magnet 710. In addition, the AF carrier 210 and the lens can move in the y-axis direction along with the OIS-y carrier 410. More specifically, when a positive current is applied to the OIS-y coil 720, the OIS-y magnet 710, OIS-y carrier 410, AF carrier 210, and lens can move in one direction along the y-axis. When a reverse current is applied to the OIS-y coil 720, the OIS-y magnet 710, OIS-y carrier 410, AF carrier 210, and lens can move in the other direction along the y-axis.

[0201] On the other hand, the OIS-x sensor 630 can sense the strength of the magnetic field of the OIS-x magnet 610 and can sense the amount of movement and position of the OIS-x magnet 610. The amount of movement and position of the OIS-x magnet 610 sensed 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 sense the strength of the magnetic field of the OIS-y magnet 710 and can sense the amount of movement and position of the OIS-y magnet 710. The amount of movement and position of the OIS-y magnet 710 sensed by the OIS-y sensor 730 can be used for hand shake correction feedback control in the y-axis direction.

[0202] The camera device according to this embodiment will be described below with reference to the drawings.

[0203] Figure 34 is an exploded perspective view of the camera device according to this embodiment.

[0204] The camera device 10A may include a camera module.

[0205] The camera device 10A may include a lens module 20. The lens module 20 may include at least one lens. The lens may be positioned in a location corresponding to the image sensor 60. The lens module 20 may include a lens and a barrel. The lens module 20 may be coupled to the AF carrier 210 of the lens drive device 10. The lens module 20 may be coupled to the AF carrier 210 by screw coupling and / or adhesive. The lens module 20 may move together with the AF carrier 210.

[0206] The camera device 10A may include a filter 30. The filter 30 can block light of a specific frequency band from entering the image sensor 60 from the light passing through the lens module 20. The filter 30 can be positioned parallel to the xy plane. The filter 30 can be positioned between the lens module 20 and the image sensor 60. The filter 30 can be positioned on the sensor base 40. In a modified example, the filter 30 can be positioned on the base 110. The filter 30 may include an infrared filter. The infrared filter can block light in the infrared region from entering the image sensor 60.

[0207] The camera device 10A may include a sensor base 40. The sensor base 40 may be positioned between the lens drive unit 10 and the printed circuit board 50. The sensor base 40 may include a projection 41 on which a filter 30 is positioned. An opening may be formed in the portion of the sensor base 40 on which the filter 30 is positioned, so that light passing through the filter 30 can enter the image sensor 60. An adhesive member may be used to bond or adhere the base 110 of the lens drive unit 10 to the sensor base 40. The adhesive member may also serve to prevent foreign matter from entering the interior of the lens drive unit 10. The adhesive member may include one or more of epoxy, thermosetting adhesives, and UV-curing adhesives.

[0208] The camera device 10A may include a printed circuit board (PCB) 50. The printed circuit board 50 may be a board or a circuit board. A lens drive device 10 may be arranged on the printed circuit board 50. A sensor base 40 may be arranged between the printed circuit board 50 and the lens drive device 10. The printed circuit board 50 may be electrically connected to the lens drive device 10. An image sensor 60 may be arranged on the printed circuit board 50. The printed circuit board 50 may also be equipped with various circuits, elements, control units, etc., for converting the image formed on the image sensor 60 into an electrical signal and transmitting it to an external device.

[0209] The camera device 10A may include an image sensor 60. The image sensor 60 may be configured such that an image is formed when light that has passed through a lens and a filter 30 is incident on it. The image sensor 60 may be mounted on a printed circuit board 50. The image sensor 60 may be electrically coupled 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). In 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 positioned so that its optical axis coincides with that of the lens. That is, the optical axis of the image sensor 60 and the optical axis of the lens can be aligned. The image sensor 60 can convert light illuminating the effective image area of ​​the image sensor 60 into an electrical signal. The image sensor 60 may be a CCD (charge coupled device), MOS (metal oxide semiconductor), CPD, or CID.

[0210] The camera device 10A may include a motion sensor 70. The motion sensor 70 may be mounted on a printed circuit board 50. The motion sensor 70 may be electrically connected to the control unit 80 through a circuit pattern provided on the printed circuit board 50. The motion sensor 70 may output rotational angular velocity information due to the movement of the camera device 10A. The motion sensor 70 may include a two-axis or three-axis gyro sensor, or an angular velocity sensor.

[0211] The camera device 10A may include a control unit 80. The control unit 80 may be located on a printed circuit board 50. The control unit 80 may be electrically connected to the coils 520, 620, 720 and sensors 530, 630, 730 of the lens drive device 10. The control unit 80 can individually control the direction, strength, and amplitude of the current supplied to the coil 330. The control unit 80 can control the lens drive device 10 and perform autofocus and / or hand shake correction functions. The control unit 80 can also perform autofocus feedback control and / or hand shake correction feedback control to the lens drive device 10.

[0212] 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.

[0213] The optical equipment according to this embodiment will be described below with reference to the drawings.

[0214] Figure 35 is a perspective view of the optical instrument according to this embodiment. Figure 36 is a perspective view of the optical instrument according to a modified example.

[0215] Optical device 1 may include one or more of the following: mobile phones, handheld devices, mobile terminals, smartphones, smartpads, portable smart devices, digital cameras, laptop computers, digital broadcasting terminals, PDAs (Personal Digital Assistants), PMPs (Portable Multimedia Players), and navigation systems. Optical device 1 may also include any device for capturing images or photographs.

[0216] 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 mounted on the main body 20. The camera device 10A may capture images of a subject. The optical device 1 may include a display. The display may be mounted on the main body 20. The display may output one or more of the video and images captured by the camera device 10A. The display may be mounted on the first surface of the main body 20. The camera device 10A may be mounted on either the first surface of the main body 20 or one or more of the second surface opposite the first surface. As shown in Figure 35, the camera device 10A may have triple cameras arranged vertically. As shown in Figure 36, the camera device 10A-1 may have triple cameras arranged horizontally.

[0217] While embodiments of the present invention have been described above with reference to the attached drawings, those with ordinary skill in the art to which the present invention pertains should understand that the present invention can be implemented in other specific forms without altering the essential features of its technical concept. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting.

Claims

1. base; A first carrier disposed on the base; A second carrier placed on the first carrier; A third carrier placed on the second carrier; A first drive unit that moves the first carrier in a first direction perpendicular to the optical axis direction; A second drive unit that moves the second carrier in a second direction perpendicular to the optical axis direction and the first direction; A third drive unit that moves the third carrier in the optical axis direction; Attractive magnets placed on the second carrier; and Includes a first yoke positioned on the base, The first yoke is positioned at a location corresponding to the attractive magnet such that an attractive force acts upon it. The third drive unit is a lens drive device that includes a third magnet disposed on the third carrier and a third coil disposed on the second carrier.

2. The first drive unit includes a first magnet disposed on the first carrier and a first coil that interacts with the first magnet. A second yoke is positioned on the base, on which the first magnet and an attractive force act. The lens driving device according to claim 1, wherein the second yoke includes a plurality of yokes spaced apart from each other.

3. The second drive unit includes a second magnet disposed on the second carrier and a second coil that interacts with the second magnet. A third yoke is positioned on the base, with which the second magnet acts in attraction. The lens driving device according to claim 1, wherein the third yoke includes a plurality of yokes spaced apart from each other.

4. The system includes a substrate connecting the second carrier and the base, The lens driving device according to claim 1, wherein the third coil is disposed on the substrate.

5. The substrate includes an outer portion disposed on the base, an inner portion disposed on the second carrier, and a connecting portion connecting the outer portion and the inner portion. The lens driving device according to claim 4, wherein the connecting portion includes a bent shape.

6. The lens driving device according to claim 5, wherein the connecting portion is bent once.

7. The lens drive device according to claim 1, wherein the third coil moves together with the second carrier.

8. The lens drive device according to claim 1, wherein when the first carrier moves in the first direction, the first carrier, the second carrier and the third carrier move together.

9. When the second carrier moves in the second direction, the second carrier and the third carrier move together. The lens driving device according to claim 8, wherein the distance between the third magnet and the third coil is maintained when the second carrier moves in the first and second directions.

10. base; A first carrier disposed on the base; A second carrier placed on the first carrier; A first magnet and a first coil for moving the first carrier in a first direction perpendicular to the optical axis; A second magnet and a second coil that move the second carrier in a second direction perpendicular to the optical axis direction and the first direction; The first yoke on which the first magnet and the first yoke act with an attractive force; and The second yoke is subject to an attractive force with the second magnet, The first magnet is placed on the first carrier, The first yoke is a lens drive device comprising a first-first yoke and a first-second yoke, which are positioned on the base and spaced apart from each other.

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