Lens drive device, camera device and optical equipment

Abstract

A first embodiment of the present invention relates to a lens driving device including a fixed portion; a first movable portion disposed within the fixed portion; a second movable portion disposed between the fixed portion and the first movable portion; a first coil and a first magnet that move the first movable portion in an optical axis direction; and a second coil and a second magnet that move the second movable portion in a first direction perpendicular to the optical axis direction, wherein the first coil overlaps with the second coil in the first direction.

Description

[Technical Field]

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

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

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

[0004] However, in order to arrange components such as magnets and coils for performing the autofocus function and image stabilization function, a size larger than the thickness of the smartphone is required in the optical axis direction, which poses a problem that the camera device attached to the smartphone protrudes from other parts of the smartphone. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Korean Patent Publication No. 10-2015-0118005 Summary of the Invention [Problem to be solved by the invention]

[0006] This embodiment provides a camera device that has an autofocus function and an image stabilization function, while minimizing the size in the optical axis direction. [Means for solving the problem]

[0007] A lens driving device according to a first embodiment of the present invention includes a fixed portion; a first movable portion disposed within the fixed portion; a second movable portion disposed between the fixed portion and the first movable portion; a first coil and a first magnet that move the first movable portion in the optical axis direction; and a second coil and a second magnet that move the second movable portion in a first direction perpendicular to the optical axis direction, and the second coil may overlap the first coil in the first direction.

[0008] The second coil may include a first unit coil and a second unit coil, and the first coil may be disposed between the first unit coil and the second unit coil in the first direction.

[0009] The first magnet may overlap the second magnet in the first direction.

[0010] The lens driving device may include a third moving part arranged between the fixed part and the second moving part; and a third coil and a third magnet that move the third moving part in a second direction perpendicular to the optical axis direction and the first direction.

[0011] When a current is applied to the second coil, the first moving part may move together with the second moving part, and when a current is applied to the third coil, the first moving part and the second moving part may move together with the third moving part.

[0012] The lens driving device may include a first yoke that acts on the first magnet with an attractive force, the first magnet being disposed on the first moving part, and the first yoke being disposed on the second moving part.

[0013] The lens driving device may include a second yoke that acts on the second magnet with an attractive force, the second magnet being disposed on the second moving section, and the second yoke being disposed on the third moving section.

[0014] The lens driving device may include a third yoke that acts on the third magnet with an attractive force, the third magnet being disposed on the third moving part, and the third yoke being disposed on the fixed part.

[0015] The lens driving device may include a first ball arranged between the first moving part and the second moving part, the first moving part and the second moving part including a first groove extending in the optical axis direction, and the first ball may be arranged between the first groove of the first moving part and the first groove of the second moving part.

[0016] The lens driving device may include a second ball arranged between the second moving part and the third moving part, the second moving part and the third moving part including a second groove extending in the first direction, and the second ball may be arranged between the second groove of the second moving part and the second groove of the third moving part.

[0017] The lens driving device may include a third ball arranged between the third moving part and the fixed part, the third moving part and the fixed part including a third groove extending in the second direction, and the third ball may be arranged between the third groove of the third moving part and the third groove of the fixed part.

[0018] The second magnet may overlap the third magnet in the second direction.

[0019] The first magnet may not overlap the third magnet in the first direction and the second direction.

[0020] A lens driving device according to a first embodiment of the present invention includes a fixed portion; a first movable portion disposed within the fixed portion; a second movable portion disposed between the fixed portion and the first movable portion; a first coil and a first magnet that move the first movable portion in the optical axis direction; and a second coil and a second magnet that move the second movable portion in a first direction perpendicular to the optical axis direction, and the second movable portion may include a first surface on which a first guide portion that guides the first movable portion to move in the first direction is formed, and a second surface on which a third guide portion that guides the movement of the first movable portion in the optical axis direction is formed.

[0021] A lens driving device according to a first embodiment of the present invention includes a fixed part including a bottom plate and a side plate; a first moving part disposed within the fixed part; a second moving part disposed between the fixed part and the first moving part; and a third moving part disposed between the fixed part and the first moving part, wherein the side plate of the fixed part includes a first side plate and a second side plate adjacent to each other, and the third moving part includes a first guide part that guides the first moving part to move in a first direction and a second guide part that guides the first moving part to move in a second direction, and the second moving part is disposed between the first side plate of the fixed part and the first moving part, the first guide part is disposed between a lower surface of the second moving part and the bottom plate of the fixed part, and the second guide part is disposed between a side surface of the first moving part and the second side plate of the fixed part.

[0022] A lens driving device according to a first embodiment of the present invention may include a fixed part including a bottom plate and a side plate; a first moving part that moves based on the fixed part; a second moving part that guides the first moving part to move in the optical axis direction; a third moving part that guides the first moving part to move in a first direction and a second direction perpendicular to the optical axis direction; a first valve that is arranged between the first moving part and the second moving part; a second valve that is arranged between a lower surface of the second moving part and an upper surface of the third moving part; and a third valve that is arranged between the third moving part and the side plate of the fixed part.

[0023] The lens driving device may include a first coil and a first magnet that move the first moving unit in the optical axis direction, a second coil and a second magnet that move the second moving unit in a first direction perpendicular to the optical axis direction, and a third coil and a third magnet that move the third moving unit in a second direction perpendicular to the optical axis direction and the first direction.A camera device according to a first embodiment of the present invention may include a printed circuit board; an image sensor disposed on the printed circuit board; the lens driving device disposed on the printed circuit board; and a lens coupled to the lens driving device.

[0024] The optical device according to the first embodiment of the present invention may include a main body; a camera device disposed on the main body; and a display disposed on the main body and configured to output at least one of a video and an image captured by the camera device.

[0025] A lens driving device according to a second embodiment of the present invention includes a fixed portion; a first movable portion disposed within the fixed portion; a second movable portion disposed between the fixed portion and the first movable portion; a first coil and a first magnet that move the first movable portion; a second coil and a second magnet that move the second movable portion; and a shaft that is disposed between the first movable portion and the second movable portion, and an attractive force may act between the shaft and the second magnet.

[0026] The first moving portion may be pressed toward the second moving portion by an attractive force between the shaft and the second magnet.

[0027] The shaft may be fixed to one of the first moving part and the second moving part, and the shaft may be pressed against the other of the first moving part and the second moving part by an attractive force between the shaft and the second magnet.

[0028] The shaft may be fixed to the first moving part.

[0029] The shaft and the first moving part may be pressed toward the second magnet by the attractive force between the shaft and the second magnet.

[0030] The central axis of the shaft may be arranged parallel to the optical axis.

[0031] The shaft can guide the first moving portion so that the first moving portion moves in the optical axis direction relative to the second moving portion.

[0032] The second magnet may be fixed to the second moving portion.

[0033] The second magnet may include a first magnet portion including a north pole and a south pole, a second magnet portion including a south pole and a north pole, and a neutral portion between the first magnet portion and the second magnet portion, and the second magnet may include an inner surface facing the shaft, and at least a portion of the shaft may overlap the neutral portion of the second magnet in a direction perpendicular to the inner surface of the second magnet.

[0034] The shaft may include a first shaft and a second shaft spaced apart from each other, and the first magnet may not overlap the first shaft and the second shaft in a direction from the first shaft toward the second shaft.

[0035] The first moving part may include a first side surface facing the first coil, the first side surface of the first moving part may include a first area, a second area recessed inward from the first area, and a third area recessed inward from the second area, the first magnet may be arranged in a groove formed in the first area, and the shaft may be arranged in a groove formed in the third area.

[0036] The second moving portion may include a groove extending in the optical axis direction, and the shaft may be disposed in the groove of the second moving portion.

[0037] The length of the groove of the second moving portion in the optical axis direction may be longer than the length of the shaft.

[0038] The first coil and the first magnet may move the first moving part in the optical axis direction, and the second coil and the second magnet may move the second moving part in a first direction perpendicular to the optical axis direction, and in the first direction, the first magnet may overlap the second magnet.

[0039] The first coil may overlap the second coil in the first direction.

[0040] The lens driving device may include a third moving part arranged between the fixed part and the second moving part; and a third coil and a third magnet that move the third moving part in a second direction perpendicular to the optical axis direction and the first direction.

[0041] When a current is applied to the second coil, the first moving part may move together with the second moving part, and when a current is applied to the third coil, the first moving part and the second moving part may move together with the third moving part.

[0042] A lens driving device according to a second embodiment of the present invention includes a fixed portion; a first movable portion disposed within the fixed portion; a second movable portion disposed between the fixed portion and the first movable portion; a first coil and a first magnet that move the first movable portion in the optical axis direction; a second coil and a second magnet that move the second movable portion in a first direction perpendicular to the optical axis direction; and a shaft disposed between the first movable portion and the second movable portion, wherein the second movable portion may include a first surface on which a first guide portion that guides the first movable portion to move in the first direction is formed, and a second surface on which a groove in which the shaft is disposed is formed.

[0043] A lens driving device according to a second embodiment of the present invention may include a fixed part including a bottom plate and a side plate; a first moving part that moves based on the fixed part; a second moving part that guides the first moving part to move in the optical axis direction; a third moving part that guides the first moving part to move in a first direction and a second direction perpendicular to the optical axis direction; a shaft arranged between the first moving part and the second moving part; a first valve arranged between a lower surface of the second moving part and an upper surface of the third moving part; and a second valve arranged between the third moving part and the side plate of the fixed part.

[0044] A camera device according to a second embodiment of the present invention may include a printed circuit board; an image sensor disposed on the printed circuit board; the lens driving device disposed on the printed circuit board; and a lens coupled to the lens driving device.

[0045] The optical device according to the second embodiment of the present invention may include a main body; a camera device disposed on the main body; and a display disposed on the main body and configured to output at least one of a video and an image captured by the camera device. [Effects of the Invention]

[0046] According to this embodiment, the autofocus function and the image stabilization function can be performed in a camera device that is minimized in size in the optical axis direction.

[0047] According to the first embodiment of the present invention, even a camera device that does not protrude from a smartphone can perform both the autofocus function and the image stabilization function.

[0048] Furthermore, the first embodiment of the present invention can provide a camera device that is minimized in size in both the horizontal and vertical directions perpendicular to the optical axis.

[0049] The camera device according to the second embodiment of the present invention may be configured so as not to protrude from the smartphone, or may be configured so as to protrude minimally from the smartphone.

[0050] According to a second embodiment of the present invention, both autofocus and image stabilization functions can be performed even with a camera device that does not protrude or only protrudes minimally from the smartphone.

[0051] Furthermore, the second embodiment of the present invention can provide a camera device that is minimized in size in both the horizontal and vertical directions perpendicular to the optical axis.

[0052] In addition, in the second embodiment of the present invention, an attractive force acts between the metal shaft for guiding the AF drive and the drive magnet, which has the advantage that there is no need to provide a separate attractive member for applying pressure to the AF guide member.

[0053] That is, the second embodiment of the present invention has the advantage that it is not necessary to dispose a magnetic shaft to guide the AF drive, and it is not necessary to dispose a separate attractive member to pressurize the AF guide member. [Brief explanation of the drawings]

[0054] [Figure 1] 1 is a perspective view of a lens driving device according to a first embodiment of the present invention. [Figure 2] FIG. 1(a) is a plan view of a lens driving device according to a first embodiment of the present invention, and FIG. 1(b) is a side view. [Figure 3] FIG. 2 is a cross-sectional view taken along line aa in FIG. [Figure 4] FIG. 2 is a cross-sectional view taken along line bb in FIG. [Figure 5] FIG. 2 is a cross-sectional view taken along line cc in FIG. [Figure 6] FIG. 2 is a cross-sectional view taken along line dd in FIG. [Figure 7] FIG. 2 is a cross-sectional view taken along the line ee in FIG. [Figure 8] FIG. 2 is a cross-sectional view taken along line ff in FIG. [Figure 9] 1 is a cross-sectional perspective view illustrating a cross section of a lens driving device according to a first embodiment of the present invention taken along a direction perpendicular to an optical axis. [Figure 10] 1 is an exploded perspective view of a lens driving device according to a first embodiment of the present invention. [Figure 11] 1 is a plan view of a lens driving device according to a first embodiment of the present invention with a cover removed. [Figure 12] 1 is a perspective view of a lens driving device according to a first embodiment of the present invention with a cover removed. [Figure 13] FIG. 13 is a partially enlarged view of FIG. [Figure 14] 1 is a perspective view illustrating an AF attractive force yoke and related configuration of a lens driving device according to a first embodiment of the present invention. [Figure 15a] 1 is a perspective view of a lens driving device according to a first embodiment of the present invention with a cover and an AF carrier removed. [Figure 15b] FIG. 2 is a bottom perspective view of the OIS-y carrier of the lens driving device according to the first embodiment of the present invention. [Figure 16] FIG. 15b is a partially enlarged view of the state in which the OIS-y carrier is removed in FIG. 15a. [Figure 17] FIG. 17 is an enlarged view of the OIS-y guide ball and related components in FIG. 16. [Figure 18] 1 is a perspective view of the lens driving device according to the first embodiment of the present invention, with the cover, AF carrier, OIS-y carrier, and substrate removed. FIG. [Figure 19] FIG. 19 is a perspective view of the state in which the base is removed in FIG. [Figure 20] 10 is a diagram illustrating a process of forming an AF carrier assembly by combining an AF magnet with an AF carrier. [Figure 21] 10 is a diagram illustrating a process of forming an OIS-y carrier assembly by combining an OIS-y magnet and an AF attractive force yoke with an OIS-y carrier. [Figure 22] 10 is a diagram illustrating a process of forming an OIS-x carrier assembly by combining an OIS-x magnet and an OIS-y attractive yoke with an OIS-x carrier. [Figure 23]10 is a diagram illustrating a process of coupling an OIS-x gravitational yoke and a substrate assembly to a base. At this time, the substrate assembly may include a substrate, and a coil and a sensor coupled to the substrate. [Figure 24] 24 is a diagram illustrating a process in which the OIS-x guide ball and the OIS-x carrier assembly are coupled together in the final state of FIG. 23. [Figure 25] 25 is a diagram illustrating a process in which an OIS-y guide ball, an OIS-y carrier assembly, and an AF guide ball are coupled together in the final state of FIG. 24. [Figure 26] 26 is a view illustrating a process in which the AF carrier assembly and the cover are combined and assembled into a lens driving device in the final state of FIG. 25. [Figure 27] FIG. 2 is a diagram for explaining autofocus driving of the lens driving device according to the first embodiment of the present invention, and is a cross-sectional view illustrating the state of the AF moving part in the initial state in which no current is applied to the AF coil. [Figure 28] FIG. 1 is a diagram for explaining autofocus driving of the lens driving device according to the first embodiment of the present invention, and is a cross-sectional view illustrating the state in which a forward current is applied to the AF coil and the AF moving part moves upward in the optical axis direction. [Figure 29] FIG. 10 is a diagram for explaining autofocus driving of the lens driving device according to the first embodiment of the present invention, and is a cross-sectional view illustrating the state in which a reverse current is applied to the AF coil and the AF moving part moves downward in the optical axis direction. [Figure 30] FIG. 1 is a diagram for explaining image stabilization driving of the lens driving device according to the first embodiment of the present invention, and is a cross-sectional view illustrating the state of the moving part in the initial state in which no current is applied to the OIS-y coil and the OIS-x coil. [Figure 31] FIG. 1 is a diagram for explaining the image stabilization drive of the lens driving device according to the first embodiment of the present invention, and is a cross-sectional view illustrating the state in which a current is applied to the OIS-x coil, and the OIS-x moving unit, OIS-y moving unit, and AF moving unit move in the x-axis direction perpendicular to the optical axis. [Figure 32]FIG. 10 is a cross-sectional view illustrating the image stabilization drive of the lens driving device according to the first embodiment of the present invention, showing the state in which a current is applied to the OIS-y coil, and the OIS-y moving unit and the AF moving unit move in the y-axis direction perpendicular to the optical axis. [Figure 33] 1 is an exploded perspective view of a camera device according to a first embodiment of the present invention. [Figure 34] 1 is a perspective view of an optical apparatus according to a first embodiment of the present invention. [Figure 35] FIG. 10 is a perspective view of an optical device according to a modified example. [Figure 36] FIG. 10 is a perspective view of a lens driving device according to a second embodiment of the present invention. [Figure 37] FIG. 10(a) is a plan view of a lens driving device according to a second embodiment of the present invention, and FIG. [Figure 38] 37 is a cross-sectional view taken along line aa in FIG. 36. [Figure 39] FIG. 37 is a cross-sectional view taken along the line bb in FIG. 36. [Figure 40] FIG. 37 is a cross-sectional view taken along the line cc in FIG. 36. [Figure 41] FIG. 37 is a cross-sectional view taken along the line dd in FIG. 36. [Figure 42] 37 is a cross-sectional view taken along the line ee in FIG. 36. [Figure 43] FIG. 10 is a cross-sectional view illustrating a cross section of a lens driving device according to a second embodiment of the present invention taken in a direction perpendicular to the optical axis. [Figure 44] FIG. 10 is an exploded perspective view of a lens driving device according to a second embodiment of the present invention. [Figure 45] 10A and 10B are a plan view and a partially enlarged view of a lens driving device according to a second embodiment of the present invention with a cover removed; [Figure 46] FIG. 10 is a perspective view of a lens driving device according to a second embodiment of the present invention with the cover removed. [Figure 47] FIG. 47 is an enlarged, partially perspective view of a portion of FIG. 46. [Figure 48] FIG. 10 is a perspective view of a lens driving device according to a second embodiment of the present invention with a cover and an AF carrier removed. [Figure 49]FIG. 10 is a bottom perspective view of an OIS-y carrier of a lens driving device according to a second embodiment of the present invention. [Figure 50] FIG. 49 is a partially enlarged view of the state in which the OIS-y carrier is removed in FIG. 48. [Figure 51] FIG. 51 is an enlarged view of the AF guide shaft, the OIS-y guide ball, and related components in FIG. 50. [Figure 52] FIG. 10 is a perspective view of a lens driving device according to a second embodiment of the present invention with a cover, an AF carrier, an OIS-y carrier, and a substrate removed. [Figure 53] FIG. 53 is a perspective view of the state in which the base is removed in FIG. 52. [Figure 54] FIG. 2 is a perspective view illustrating the OIS-x carrier, the drive unit, the guide member, and the attraction member. [Figure 55] 10 is a diagram illustrating a process of forming an AF carrier assembly by combining an AF magnet and a shaft with an AF carrier. [Figure 56] 10 is a diagram illustrating a process in which an OIS-y magnet is coupled to an OIS-y carrier to form an OIS-y carrier assembly. [Figure 57] 10 is a diagram illustrating a process of forming an OIS-x carrier assembly by combining an OIS-x magnet and an OIS-y attractive yoke with an OIS-x carrier. [Figure 58] 10 is a diagram illustrating a process of coupling an OIS-x gravitational yoke and a substrate assembly to a base. At this time, the substrate assembly may include a substrate, and a coil and a sensor coupled to the substrate. [Figure 59] 59 is a diagram illustrating a process in which the OIS-x guide ball and the OIS-x carrier assembly are coupled together in the final state of FIG. 58. [Figure 60] 60 is a diagram illustrating a process in which the OIS-y guide ball and the OIS-y carrier assembly are coupled together in the final state of FIG. 59. [Figure 61] 61 is a diagram illustrating the process of assembling the AF carrier assembly and the cover into a lens driving device in the final state of FIG. 60. [Figure 62]FIG. 10 is a diagram for explaining autofocus driving of a lens driving device according to a second embodiment of the present invention, and is a cross-sectional view illustrating the state of an AF moving part in an initial state in which no current is applied to the AF coil. [Figure 63] FIG. 10 is a diagram for explaining the autofocus driving of the lens driving device according to the second embodiment of the present invention, and is a cross-sectional view illustrating the state in which a forward current is applied to the AF coil and the AF moving part moves upward in the optical axis direction. [Figure 64] FIG. 10 is a cross-sectional view illustrating the autofocus drive of the lens driving device according to the second embodiment of the present invention, showing the state in which a reverse current is applied to the AF coil and the AF moving part moves downward in the optical axis direction. [Figure 65] FIG. 10 is a diagram for explaining image stabilization driving of a lens driving device according to a second embodiment of the present invention, and is a cross-sectional view illustrating the state of a moving part in an initial state in which no current is applied to the OIS-y coil and the OIS-x coil. [Figure 66] FIG. 10 is a cross-sectional view illustrating the image stabilization drive of a lens driving device according to a second embodiment of the present invention, in which a current is applied to the OIS-x coil, and the OIS-x moving unit, OIS-y moving unit, and AF moving unit move in the x-axis direction perpendicular to the optical axis. [Figure 67] FIG. 10 is a cross-sectional view illustrating the image stabilization drive of the lens driving device according to the second embodiment of the present invention, showing the state in which a current is applied to the OIS-y coil and the OIS-y moving unit and the AF moving unit move in the y-axis direction perpendicular to the optical axis. [Figure 68] FIG. 10 is an exploded perspective view of a camera device according to a second embodiment of the present invention. [Figure 69] FIG. 10 is a perspective view of an optical apparatus according to a second embodiment of the present invention. [Figure 70] FIG. 10 is a perspective view of an optical device according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0055] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0056] However, the technical concept of the present invention is not limited to the described embodiments, but can be realized in various different forms, and one or more of the components between the embodiments can be arbitrarily combined or substituted within the scope of the technical concept of the present invention.

[0057] Furthermore, unless otherwise clearly defined and described, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as meanings that are commonly understood by a person having ordinary knowledge in the technical field to which the present invention belongs, and commonly used terms, such as terms defined in a dictionary, may be interpreted in light of the contextual meaning of the relevant art.

[0058] Furthermore, the terms used in the examples of the present invention are intended to explain the examples and are not intended to limit the present invention.

[0059] In this specification, the singular can include the plural unless otherwise specified in the context, and when it is stated as "A and at least one (or one or more) of B and C," it can include one or more of all possible combinations of A, B, and C.

[0060] Furthermore, when describing components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. are used to distinguish the component from other components, and the terms do not limit the nature, order, or sequence of the components.

[0061] It should be noted that when a component is described as being "coupled," "coupled," or "connected" to another component, it can include not only the case where the component is directly "coupled," "coupled," or "connected" to the other component, but also the case where the component is "coupled," "coupled," or "connected" by another component between the component and the other component.

[0062] Furthermore, when it is stated that something is formed or disposed "above" or "below" a component, "above" or "below" refers not only to the case where two components are in direct contact with each other, but also to the case where one or more other components are formed or disposed between the two components. Furthermore, when it is expressed as "above" or "below," it can mean not only the upward direction but also the downward direction based on one component.

[0063] The "optical axis (see OA in FIG. 27) direction" used below is defined as the optical axis direction of the lens and / or image sensor coupled to the lens driving device.

[0064] The "vertical direction" used below may be a direction parallel to or the same as the optical axis direction. The vertical direction may correspond to the "z-axis direction." The "horizontal direction" used below may be a direction perpendicular to the vertical direction. In other words, the horizontal direction may be a direction perpendicular to the optical axis. Therefore, the horizontal direction may include the "x-axis direction" and the "y-axis direction."

[0065] The "autofocus (AF) function" used below is defined as a function that automatically focuses on a subject by adjusting the distance from the image sensor by moving the lens along the optical axis according to the distance of the subject so that a clear image of the subject can be obtained on the image sensor. Also, the "autofocus feedback (CLAF, closed-loop autofocus) control" is defined as a function that senses the distance between the image sensor and the lens and provides feedback (feedback) to control the lens position in real time to improve the accuracy of focus adjustment.

[0066] As used below, "optical image stabilization (OIS) function" is defined as a function that moves or tilts the lens in a direction perpendicular to the optical axis to offset hand tremors in order to prevent blurring of images or videos caused by the user's hand tremors. Also, "closed-loop autofocus (CLAF) control" is defined as a function that senses the position of the lens relative to the image sensor and provides feedback (feedback) to control the lens position in real time to improve the accuracy of image stabilization.

[0067] Hereinafter, 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," "second moving unit," and "third moving unit," respectively. Furthermore, the "moving unit" may also be referred to as the "moving body" or "moving person."

[0068] Hereinafter, the "AF carrier 210," "OIS-x carrier 310," and "OIS-y carrier 410" may be referred to as the "first carrier," "second carrier," and "third carrier," respectively. Furthermore, the "carrier" may also be referred to as a "holder," "frame," or "spacer."

[0069] Hereinafter, the "AF driver 500," "OIS-x driver 600," and "OIS-y driver (700)" may be referred to as the "first driver," "second driver," and "third driver," respectively.

[0070] Hereinafter, the "AF magnet 510," "OIS-x magnet (610)," and "OIS-y magnet (710)" may be referred to as the "first magnet," "second magnet," and "third magnet," respectively. Meanwhile, "magnet" may also be referred to as "magnet," "magnetic pole," or "permanent magnet."

[0071] Hereinafter, the "AF coil 520," "OIS-x coil 620," and "OIS-y coil 720" may be referred to as the "first coil," "second coil," and "third coil," respectively.

[0072] Hereinafter, the "AF sensor 530," the "OIS-x sensor 630," and the "OIS-y sensor 730" may be referred to as the "first sensor," the "second sensor," and the "third sensor," respectively.

[0073] Hereinafter, the "AF guide ball 810," "OIS-x guide ball 820," and "OIS-y guide ball 830" may be referred to as the "first guide ball," "second guide ball," and "third guide ball," respectively. Also, the "guide ball" may be referred to as the "ball." Alternatively, the "guide ball" may be referred to as the "ball portion."

[0074] Hereinafter, the "AF gravitational force yoke 910," "OIS-x gravitational force yoke 920," and "OIS-y gravitational force yoke 930" may be referred to as the "first yoke," "second yoke," and "third yoke," respectively.

[0075] Hereinafter, at least one of "groove 111," "groove 211," "groove 311," "groove 312," "groove 211," and "groove" may be referred to as the "first groove," "second groove," "third groove," "fourth groove," "fifth groove," and "sixth groove." As an example, the "first groove" may commonly refer to "groove 211" and "groove 211" where the AF guide ball 810 is disposed, the "second groove" may commonly refer to "groove 311" and "groove" where the OIS-y guide ball 830 is disposed, and the "third groove" may commonly refer to "groove 111" and "groove 312" where the OIS-x guide ball 820 is disposed.

[0076] Hereinafter, one of the "x-axis direction" and the "y-axis direction" may be referred to as the "first direction," and the other may be referred to as the "second direction."

[0077] Hereinafter, the "AF moving unit (1200)," "OIS-x moving unit (1300)," and "OIS-y moving unit (1400)" may be referred to as the "first moving unit," "second moving unit," and "third moving unit," respectively. Furthermore, the "moving unit" may be referred to as the "moving body" or "moving person."

[0078] Hereinafter, the "AF carrier (1210)," "OIS-x carrier (1310)," and "OIS-y carrier 1410" may be referred to as the "first carrier," "second carrier," and "third carrier," respectively. Furthermore, the "carrier" may also be referred to as a "holder," "frame," or "spacer."

[0079] Hereinafter, the "AF driving unit (1500)", "OIS-x driving unit (1600)", and "OIS-y driving unit (1700)" may be referred to as the "first driving unit", "second driving unit", and "third driving unit", respectively.

[0080] Hereinafter, the "AF magnet (1510)," "OIS-x magnet (1610)," and "OIS-y magnet (1710)" may be referred to as the "first magnet," "second magnet," and "third magnet," respectively. Meanwhile, "magnet" may also be referred to as "magnet," "magnet," or "permanent magnet."

[0081] Hereinafter, the "AF coil 1520," "OIS-x coil 1620," and "OIS-y coil 1720" may be referred to as the "first coil," "second coil," and "third coil," respectively.

[0082] Hereinafter, the "AF sensor (1530)", "OIS-x sensor (1630)", and "OIS-y sensor (1730)" may be referred to as the "first sensor", "second sensor", and "third sensor", respectively.

[0083] Hereinafter, one of the "OIS-x guide ball 1820" and the "OIS-y guide ball 1830" may be referred to as the "first guide ball," and the other may be referred to as the "second guide ball."

[0084] Hereinafter, one of the "OIS-x gravitational force yoke 1920" and the "OIS-y gravitational force yoke (1930)" may be referred to as the "first yoke," and the other may be referred to as the "second yoke."

[0085] Hereinafter, at least one of "groove 1111," "groove 1211," "groove (1311)," "groove (1312)," "groove (1411)," and "groove (1412)" may be referred to as the "first groove," "second groove," "third groove," "fourth groove," "fifth groove," and "sixth groove." As an example, the "first groove" may generally refer to "groove 1211" and "groove (1411)" in which the shaft 1810 is disposed, the "second groove" may generally refer to "groove (1311)" and "groove (1412)" in which the OIS-y guide ball 1830 is disposed, and the "third groove" may generally refer to "groove 1111" and "groove (1312)" in which the OIS-x guide ball 1820 is disposed.

[0086] Hereinafter, the "x-axis," "y-axis," and "z-axis" may be referred to as the "first axis," "second axis," and "third axis," respectively.

[0087] The configuration of a lens driving device according to a first embodiment of the present invention will be described below with reference to the drawings.

[0088] FIG. 1 is a perspective view of a lens driving device according to a first embodiment of the present invention. FIG. 2(a) is a plan view of the lens driving device according to the first embodiment of the present invention, and FIG. 2(b) is a side view. FIG. 3 is a cross-sectional view taken along line aa in FIG. 1. FIG. 4 is a cross-sectional view taken along line bb in FIG. 1. FIG. 5 is a cross-sectional view taken along line cc in FIG. 1. FIG. 6 is a cross-sectional view taken along line dd in FIG. 1. FIG. 7 is a cross-sectional view taken along line ee in FIG. 1. FIG. 8 is a cross-sectional view taken along line ff in FIG. 1. FIG. 9 is a cross-sectional perspective view of the lens driving device according to the first embodiment of the present invention, taken along a direction perpendicular to the optical axis. FIG. 10 is an exploded perspective view of the lens driving device according to the first embodiment of the present invention. FIG. 11 is a plan view of the lens driving device according to the first embodiment of the present invention with the cover removed. FIG. 12 is a perspective view of the lens driving device according to the first embodiment of the present invention with the cover removed. FIG. 13 is a partially enlarged view of FIG. 12. FIG. 14 is a perspective view of the AF attraction yoke and related components of the lens driving device according to the first embodiment of the present invention. FIG. 15a is a perspective view of the lens driving device according to the first embodiment of the present invention with the cover and AF carrier removed. FIG. 15b is a bottom perspective view of the OIS-y carrier of the lens driving device according to the first embodiment of the present invention. FIG. 16 is a partial enlarged view of FIG. 15a with the OIS-y carrier removed. FIG. 17 is an enlarged view of the OIS-y guide ball and related components of FIG. 16. FIG. 18 is a perspective view of the lens driving device according to the first embodiment of the present invention with the cover, AF carrier, OIS-y carrier, and substrate removed. FIG. 19 is a perspective view of FIG. 18 with the base removed.

[0089] The lens driving device 10 may be a voice coil motor (VCM). The lens driving device 10 may be a lens driving motor. The lens driving device 10 may be a lens driving actuator. The lens driving device 10 may include an AF module. The lens driving device 10 may include an OIS module.

[0090] The lens driving device 10 may include a fixed part 100. The fixed part 100 may be a part that is fixed relative to the moving part when the moving part moves. The moving part may move relative to the fixed part 100. The fixed part 100 may be arranged outside the moving part. The fixed part 100 may house the moving part inside.

[0091] The lens driving device 10 may include a base 110. The fixed unit 100 may include the base 110. The base 110 may be disposed below the AF carrier 210. The base 110 may be disposed below the OIS-x carrier 310. The base 110 may be disposed below the OIS-y carrier 410. The base 110 may be coupled to the cover 120. The AF carrier 210, the OIS-x carrier 310, and the OIS-y carrier 410 may be disposed on the base 110. The AF carrier 210, the OIS-x carrier 310, and the OIS-y carrier 410 may be disposed on a bottom plate 112 of the base 110. The AF carrier 210, the OIS-x carrier 310, and the OIS-y carrier 410 may be disposed within the base 110. The AF carrier 210 , the OIS-x carrier 310 and the OIS-y carrier 410 may be disposed within the side plate 113 of the base 110 .

[0092] Base 110 may include groove 111. Groove 111 may be an "OIS-x guide ball receiving groove." Groove 111 may be formed as a recess in base 110. Groove 111 may be formed by recessing one surface of base 110. Groove 111 may be formed in side plate 113 of base 110. Groove 111 may be formed on the inner surface of side plate 113 of base 110. OIS-x guide ball 820 may be disposed in groove 111. Groove 111 may be in direct contact with OIS-x guide ball 820. Groove 111 may be disposed in the y-axis direction perpendicular to the optical axis. Groove 111 may include multiple grooves. Groove 111 may include four grooves. The four grooves may be disposed parallel to one another. Groove 111 may include a first groove that contacts OIS-x guide ball 820 at two points, and a second groove that contacts OIS-x guide ball 820 at one point. As a variation, both the first groove and the second groove may contact OIS-x guide ball 820 at two points.

[0093] The base 110 may include a lower plate 112. The lower plate 112 may be a "bottom plate." The base 110 may include side plates 113. The side plates 113 of the base 110 may be "sides." The side plates 113 of the base 110 may extend from an upper surface of the lower plate 112. The side plates 113 of the base 110 may include multiple side plates. The side plates 113 of the base 110 may include four side plates. The base 110 may include first and second sides opposite each other, and third and fourth sides opposite each other. The AF coil 520 and the OIS-y coil 720 may be disposed on the first side of the base 110. The OIS-x coil 620 may be disposed on the third side of the base 110.

[0094] The base 110 may include a groove 114. The groove 114 may be a "yoke receiving groove." The groove 114 may be formed in a side plate 113 of the base 110. The groove 114 may be formed on an outer surface of the side plate 113 of the base 110. The OIS-x attraction yoke 920 may be disposed in the groove 114. The groove 114 may include a shape corresponding to at least a portion of the OIS-x attraction yoke 920.

[0095] The lens driving device 10 may include a cover 120. The fixed portion 100 may include the cover 120. The cover 120 may be disposed on the base 110. The cover 120 may be coupled to the base 110. The cover 120 may be fixed to the base 110. The cover 120 may be adhered to the base 110 with an adhesive. The cover 120 may house the AF carrier 210 therein. The cover 120 may house the OIS-x carrier 310 therein. The cover 120 may house the OIS-y carrier 410 therein. The cover 120 may be a shielding member. The cover 120 may be a shielding can.

[0096] The cover 120 may include an upper plate 121. The upper plate 121 may be disposed on the moving part. The upward movement of the moving part may be restricted by the moving part coming into contact with the upper plate 121. The upper plate 121 may include a hole through which light passes.

[0097] 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 disposed on the base 110. The side plates 122 may be disposed on stepped portions formed to protrude from the lower end of the outer surface of the base 110. The side plates 122 may include a plurality of 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 disposed opposite to each other, and a third side plate and a fourth side plate disposed opposite to each other.

[0098] In the first embodiment of the present invention, the AF coil 520 and the OIS-y coil 720 may be arranged between the moving part and the first side plate of the cover 120. The AF coil 520 and the OIS-y coil 720 may be arranged between the AF carrier 210 and the first side plate of the cover 120. The AF coil 520 and the OIS-y coil 720 may be arranged between the OIS-y carrier 410 and the first side plate of the cover 120. The AF coil 520 and the OIS-y coil 720 may be arranged on the first side plate of the cover 120. The AF coil 520 and the OIS-y coil 720 may be arranged at a position corresponding to the first side plate of the cover 120.

[0099] The lens driving device 10 may include a substrate 130. The fixed part 100 may include the substrate 130. The substrate 130 may be disposed on the base 110. The substrate 130 may be disposed on a side plate 113 of the base 110. The substrate 130 may be disposed on an outer surface of the side plate 122 of the cover 120. The substrate 130 may be disposed parallel to the optical axis. The substrate 130 may be a circuit board. The substrate 130 may be a printed circuit board. The substrate 130 may include a flexible printed circuit board (FPCB). The substrate 130 may have ductility. The substrate 130 may be bendable.

[0100] The substrate 130 may include a first portion and a third portion disposed on opposite sides of each other, and a second portion connecting the first portion and the third portion. In this case, the OIS-y coil 720 may be disposed on the first portion of the substrate 130. The OIS-x coil 620 may be disposed on the second portion of the substrate 130. The AF coil 520 may be disposed on the third portion of the substrate 130.

[0101] The substrate 130 may include a main body portion. The coils 510, 610, and 710 may be disposed in the main body portion. The substrate 130 may include a terminal 131. The terminal 131 may be disposed in a terminal portion extending downward from the main body portion. The terminal 131 may be formed at a lower end portion of the substrate 130. The terminal 131 may protrude below the base 110.

[0102] The terminal 131 may include a plurality of terminals. The terminal 131 of the substrate 130 may be electrically connected to the coils 510, 610, and 710. The terminal 131 of the substrate 130 may be electrically connected to the AF coil 520. The terminal 131 of the substrate 130 may be electrically connected to the OIS-x coil 620. The terminal 131 of the substrate 130 may be electrically connected to the OIS-y coil 720. The terminal 131 of the substrate 130 may be electrically connected to the sensors 530, 630, and 730. The terminal 131 of the substrate 130 may be electrically connected to the AF sensor 530. The terminal 131 of the substrate 130 may be electrically connected to the OIS-x sensor 630. The terminal 131 of the substrate 130 may be electrically connected to the OIS-y sensor 730. The terminal 131 may be coupled to the printed circuit board 50. The terminals 131 may be coupled to the printed circuit board 50 via solder. The terminals 131 may be coupled to the printed circuit board 50 via a conductive member.

[0103] The lens driving device 10 may include a moving unit. The moving unit may be arranged on the fixed unit 100. The moving unit may be arranged inside the fixed unit 100. The moving unit may be arranged on the fixed unit 100. The moving unit may be arranged movably on the fixed unit 100. The moving unit may be moved by a driving unit based on the fixed unit 100. The moving unit may move during AF driving. The moving unit may move during OIS driving. A lens may be coupled to the moving unit.

[0104] The lens driving device 10 may include an AF moving unit 200. The AF moving unit 200 may be disposed in the fixed unit 100. The AF moving unit 200 may be disposed within the fixed unit 100. The AF moving unit 200 may be disposed on the fixed unit 100. The AF moving unit 200 may be disposed within the OIS-x moving unit 300. The AF moving unit 200 may be disposed on the OIS-x moving unit 300. The AF moving unit 200 may be disposed within the OIS-y moving unit 400. The AF moving unit 200 may be disposed on the OIS-y moving unit 400. The AF moving unit 200 may be disposed movably. The AF moving unit 200 may be moved 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 an AF driving unit 500. The AF moving unit 200 may move during AF driving.

[0105] When a current is applied to the OIS-y coil 720, the AF mover 200 may move together with the OIS-y mover 400. When a current is applied to the OIS-x coil 620, the AF mover 200 and the OIS-y mover 400 may move together with the OIS-x mover 300.

[0106] The lens driving device 10 may include an AF carrier 210. The AF movement 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 disposed within the base 110. The AF carrier 210 may be disposed on the base 110. The AF carrier 210 may be disposed within the OIS-x carrier 310. The AF carrier 210 may be disposed on the OIS-x carrier 310. The AF carrier 210 may be disposed within the OIS-y carrier 410. The AF carrier 210 may be disposed on the OIS-y carrier 410. The AF carrier 210 may be disposed within the cover 120. The AF carrier 210 may be disposed so as to be movable in the optical axis direction.

[0107] The AF carrier 210 may include a groove 211. The groove 211 may be an "AF guide ball receiving groove." The AF guide ball 810 may be arranged in the groove 211. The groove 211 may be in direct contact with the AF guide ball 810. The groove 211 may be arranged in the optical axis direction. The groove 211 may include a plurality of grooves. The groove 211 may include two grooves. The groove 211 may include a first groove that contacts the AF guide ball 810 at two points, and a second groove that contacts the AF guide ball 810 at one point. As a variation, the first groove and the second groove may both contact the AF guide ball 810 at two points.

[0108] The AF carrier 210 may include a groove 212. The groove 212 may be an "AF magnet accommodating groove." The groove 212 may be formed on the outer surface of the AF carrier 210. An AF magnet 510 may be disposed in the groove 212. The groove 212 may be formed in a shape corresponding to the AF magnet 510.

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

[0110] Lens driving device 10 may include OIS-x carrier 310. OIS-x movement unit 300 may include OIS-x carrier 310. OIS-x carrier 310 may be an "OIS-x holder." OIS-x carrier 310 may be disposed within base 110. OIS-x carrier 310 may be disposed on base 110. OIS-x carrier 310 may be disposed below OIS-y carrier 410. OIS-x carrier 310 may be disposed within cover 120. OIS-x carrier 310 may be disposed between base 110 and AF carrier 210. OIS-x carrier 310 may be disposed between base 110 and OIS-y carrier 410. OIS-x carrier 310 may be disposed 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 receiving groove." The groove 311 may be formed in the lower plate 313 of the OIS-x carrier 310. The groove 311 may be formed on the upper surface of the lower plate 313 of the OIS-x carrier 310. The OIS-y guide ball 830 may be arranged in the groove 311. The groove 311 may be in direct contact with the OIS-y guide ball 830. The groove 311 may be arranged 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. As a variation, the first groove and the second groove may both contact the AF guide ball 810 at two points.

[0112] OIS-x carrier 310 may include groove 312. Groove 312 may be an "OIS-x guide ball receiving groove." Groove 312 may be formed in side plate 314 of OIS-x carrier 310. Groove 312 may be formed on the outer surface of side plate 314 of OIS-x carrier 310. OIS-x guide ball 820 may be arranged in groove 312. Groove 312 may be in direct contact with OIS-x guide ball 820. Groove 312 may be arranged in the x-axis direction. Groove 312 may include multiple grooves. Groove 312 may include four grooves. Groove 312 may include a first groove that contacts OIS-x guide ball 820 at two points and a second groove that contacts OIS-x guide ball 820 at one point. As a variation, both the first groove and the second groove may contact OIS-x guide ball 820 at two points.

[0113] The OIS-x carrier 310 may include a lower plate 313. The lower plate 313 of the OIS-x carrier 310 may be disposed between the base 110 and the OIS-y carrier 410 in the optical axis direction. The lower plate 313 may be disposed perpendicular to the optical axis.

[0114] The OIS-x carrier 310 may include a side plate 314. The side plate 314 of the OIS-x carrier 310 may be disposed between the base 110 and the AF carrier 210 in the y-axis direction. The side plate 314 may be connected to the lower plate 313. The side plate 314 may be disposed parallel to the optical axis.

[0115] OIS-x carrier 310 may include hole 315. Hole 315 may be an "OIS-x magnet accommodating hole." Hole 315 may be formed in side plate 314 of OIS-x carrier 310. Hole 315 may penetrate OIS-x carrier 310 in the y-axis direction. OIS-x magnet 610 may be disposed in hole 315. Hole 315 may have a shape corresponding to OIS-x magnet 610.

[0116] The lens driving device 10 may include an OIS-y moving unit 400. The OIS-y moving unit 400 may be disposed on the fixed unit 100. The OIS-y moving unit 400 may be disposed within the fixed unit 100. The OIS-y moving unit 400 may be disposed on the fixed unit 100. The OIS-y moving unit 400 may be disposed on the OIS-x moving unit 300. The OIS-y moving unit 400 may be disposed on the OIS-x moving unit 300. The OIS-y moving unit 400 may be disposed between the fixed unit 100 and the AF moving unit 200. The OIS-y moving unit 400 may be disposed 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 may be disposed between the fixed unit 100 and the AF moving unit 200 in the x-axis direction. The OIS-y moving unit 400 may be disposed movably on the fixed unit 100. The OIS-y movement unit 400 may be moved in the y-axis direction relative to the fixed unit 100 by the OIS-y drive unit 700. The OIS-y movement unit 400 may move when the OIS is driven. When the OIS-y movement unit 400 moves, the AF movement unit 200 may also move.

[0117] The lens driving device 10 may include an OIS-y carrier 410. The OIS-y moving unit 400 may include an OIS-y carrier 410. The OIS-y carrier 410 may be an "OIS-y holder." The OIS-y carrier 410 may be disposed on the base 110. The OIS-y carrier 410 may be disposed within the base 110. The OIS-y carrier 410 may be disposed on the base 110. The OIS-y carrier 410 may be disposed within the cover 120. The OIS-y carrier 410 may be disposed on the OIS-x carrier 310. The OIS-y carrier 410 may be disposed on the OIS-x carrier 310. The OIS-y carrier 410 may be disposed between the base 110 and the AF carrier 210. The OIS-y carrier 410 may be disposed between the base 110 and the AF carrier 210 in a direction perpendicular to the optical axis. The OIS-y carrier 410 may be disposed in the x-axis direction between the side plate 113 of the base 110 and the AF carrier 210. The OIS-y carrier 410 may be disposed so as to be movable in the y-axis direction.

[0118] The OIS-y carrier 410 may include a groove 411. The groove 411 may be an "AF guide ball receiving groove." The groove 411 may be recessed into the OIS-y carrier 410. The groove 411 may be formed on the inner surface of the OIS-y carrier 410. The AF guide ball 810 may be arranged in the groove 411. The groove 411 may be in direct contact with the AF guide ball 810. The groove 411 may be arranged in the optical axis direction. The groove 411 may include a plurality of 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. As a variation, the first groove and the second groove may both 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 receiving groove." The groove 412 may be recessed into the OIS-y carrier 410. The groove 412 may be formed on the lower surface of the OIS-y carrier 410. The OIS-y guide ball 830 may be arranged in the groove 412. The groove 412 may be in direct contact with the OIS-y guide ball 830. The groove 412 may be arranged 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 one another. 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. As a variation, the first groove and the second groove may both 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 accommodating groove." The groove 413 may be formed on the outer surface of the OIS-y carrier 410. The OIS-y magnet 710 may be disposed in the groove 413. The groove 413 may have a shape corresponding to the OIS-y magnet 710.

[0121] The OIS-y carrier 410 may include a groove 414. The groove 414 may be an "AF attraction yoke accommodating groove." The groove 414 may be formed on the outer surface of the OIS-y carrier 410. The AF attraction yoke 910 may be disposed in the groove 414. The groove 414 may have a shape corresponding to the AF attraction yoke 910. The groove 414 may include a plurality of grooves. The groove 414 may include two grooves. The grooves 414 may be formed in a number corresponding to the number of the AF attraction yokes 910.

[0122] The lens driving device 10 may include a driving unit. The driving unit may move the moving unit relative to the fixed unit. The driving unit may include an AF driving unit 500. The driving unit may include OIS driving units 600 and 700. The driving unit may include a coil and a magnet.

[0123] The lens driving device 10 may include an AF driving unit 500. The AF driving unit 500 may move the AF movement unit 200 in the optical axis direction. The AF driving unit 500 may move the AF carrier 210 in the optical axis direction. The AF driving unit 500 may move the AF carrier 210 in the optical axis direction using electromagnetic force. The AF driving unit 500 may include a coil and a magnet. The AF driving unit 500 may include a coil and a magnet that interact with each other. An AF coil 520 and an AF magnet 510 may move the AF movement unit 200 in the optical axis direction.

[0124] When the OIS-x drive unit 600 moves the OIS-x mover unit 300, the OIS-y mover unit 400, and the AF mover unit 200, the distance between the mutually facing surfaces of the AF coil 520 and the AF magnet 510 may vary. When the OIS-y drive unit 700 moves the OIS-y mover unit 400 and the AF mover unit 200, the distance between the mutually facing surfaces of the AF coil 520 and the AF magnet 510 does not vary, and the AF magnet 510 may be eccentric with respect to the AF coil 520.

[0125] The lens driving device 10 may include an AF magnet 510. The AF driving unit 500 may include an AF magnet 510. The AF magnet 510 may be disposed in the AF movement unit 200. The AF magnet 510 may be disposed in the AF carrier 210. The AF magnet 510 may be disposed in a groove 212 of the AF carrier 210. The AF magnet 510 may be disposed on an 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 adhered to the AF carrier 210 with an adhesive. The AF magnet 510 may be disposed within the cover 120. The AF magnet 510 may interact with the AF coil 520. The AF magnet 510 may electromagnetically interact with the AF coil 520. The AF magnet 510 may be disposed at a position corresponding to the AF coil 520. The AF magnet 510 may face the AF coil 520. The AF magnet 510 may face the AF coil 520. The AF magnet 510 may overlap with the AF coil 520 in a direction perpendicular to the optical axis. The AF magnet 510 may overlap with the AF coil 520 in the x-axis direction. The AF magnet 510 does not have to overlap with the OIS-x magnet 610 in the y-axis and x-axis directions.

[0126] The AF magnet 510 may 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 portion including an N pole and an S pole, and a second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged vertically. The first magnet portion and the second magnet portion may be arranged vertically and spaced apart, with a neutral portion being arranged between the first magnet portion and the second magnet portion.

[0127] The AF magnet 510 may overlap the OIS-y magnet 710 in the y-axis direction. The OIS-y magnet 710 may include a first unit magnet and a second unit magnet that are spaced apart from each other. The AF magnet 510 may be disposed between the first unit magnet and the second unit magnet of the OIS-y magnet 710 in the y-axis direction. The AF magnet 510 may be disposed between the first unit magnet and the second unit magnet in the y-axis direction. The AF magnet 510 and the OIS-y magnet 710 may be disposed on the same side. In this case, the AF magnet 510 may overlap the OIS-y magnet 710 in the y-axis direction. Alternatively, the AF magnet 510 may not overlap the OIS-y magnet 710 in the y-axis direction.

[0128] The lens driving device 10 may include an AF coil 520. The AF driving unit 500 may include an AF coil 520. The AF coil 520 may interact with the AF magnet 510. The AF coil 520 may move the AF magnet 510 in the optical axis direction. The AF coil 520 may move the AF magnet 510 in the optical axis direction through interaction with the AF magnet 510. The AF coil 520 may face the AF magnet 510. The AF coil 520 may be arranged at a position corresponding to the AF magnet 510. The AF coil 520 may overlap the AF magnet 510 in the x-axis direction. The AF coil 520 may be arranged on the substrate 130. The AF coil 520 may be arranged on the substrate 130 at a position corresponding to the AF magnet 510. The AF coil 520 may be arranged on the base 110. The AF coil 520 may be disposed on the side plate 122 of the cover 120. The AF coil 520 may be disposed between the AF magnet 510 and the cover 120. The AF coil 520 may be disposed on the fixed part 100.

[0129] The AF coil 520 may be disposed on a first side plate of the cover 120. The AF coil 520 may be disposed on a first side plate of the base 110. The AF coil 520 may be disposed on a first portion of the substrate 130. The OIS-y coil 720 may be disposed on a first side plate of the cover 120. The OIS-y coil 720 may be disposed on a first side plate of the base 110. The OIS-y coil 720 may be disposed on a first portion of the substrate 130.

[0130] The AF coil 520 may overlap the OIS-y coil 720 in the y-axis direction. The AF coil 520 may be disposed between the first unit coil 721 and the second unit coil 722 of the OIS-y coil 720. The AF coil 520 may be disposed between the first unit coil 721 and the second unit coil 722 in the y-axis direction. The AF coil 520 and the OIS-y coil 720 may be disposed on the same side. In this case, the AF coil 520 may overlap the OIS-y coil 720 in the y-axis direction. Alternatively, the AF coil 520 does not have to overlap the OIS-y coil 720 in the y-axis direction.

[0131] In a first embodiment of the present invention, as shown in FIG. 2(a), the large-aperture lens driving device 10 may have a horizontal width (see FIG. 2(g)) of 22 mm, a vertical width (see FIG. 2(h)) of 22 mm, and a hollow diameter (see FIG. 2(i)) of 17 mm when viewed from above. In this case, the horizontal width may be 20 to 24 mm, and the vertical width may be 20 to 24 mm. The hollow diameter may be 16 to 18 mm. In the first embodiment of the present invention, the large-aperture lens driving device 10 may have a space on one side where coils having two functions can be arranged together. In the first embodiment of the present invention, the AF coil 520 and the OIS-y coil 720 may be arranged together on one side of the moving part. As shown in FIG. 2(b), the height of the lens driving device 10 (see FIG. 2(j)) may be 5.7 mm. In this case, the height of the lens driving device 10 may be 5.2 to 6.2 mm.

[0132] The lens driving device 10 may include an AF sensor 530. The AF driving unit 500 may include the AF sensor 530. The AF sensor 530 may be disposed on the substrate 130. The AF sensor 530 may include a Hall IC. The AF sensor 530 may include a Hall sensor. The AF sensor 530 can sense the AF magnet 510. The AF sensor 530 can sense the magnetic force of the AF magnet 510. The AF sensor 530 can sense the movement of the AF magnet 510. The movement amount or position of the AF magnet 510 sensed by the AF sensor 530 can be used as feedback for autofocus (AF).

[0133] The AF sensor 530 may be disposed within the AF coil 520. The AF sensor 530 may overlap with the AF coil 520 in the optical axis direction. The AF sensor 530 may overlap with the neutral portion of the AF magnet 510 in the x-axis direction. As a modification, the AF sensor 530 may be disposed outside the AF coil 520. The AF sensor 530 may face the AF magnet 510. The AF sensor 530 may be disposed at a position corresponding to the AF magnet 510.

[0134] The AF sensor 530 may include a drive IC. In this case, the drive IC may be electrically connected to the AF coil 520. The drive IC can apply a current to the AF coil 520.

[0135] The lens driving device 10 may include a capacitor 540. The capacitor 540 may be disposed on the substrate 130. The capacitor 540 may be disposed near the AF sensor 530. The capacitor 540 may be disposed within the AF coil 520. The capacitor 540 can remove noise associated with the data and current transmitted and received by the AF sensor 530.

[0136] The lens driving device 10 may include an OIS-x driving unit 600. The OIS-x driving unit 600 may move the OIS-x moving unit 300 in the x-axis direction, which is perpendicular to the optical axis direction and the y-axis direction. The OIS-x driving unit 600 may move the OIS-x carrier 310 in the x-axis direction. The OIS-x driving unit 600 may move the OIS-x carrier 310 in the x-axis direction using electromagnetic force. The OIS-x driving unit 600 may include a coil and a magnet. The OIS-x coil 620 and the OIS-x magnet 610 may move the OIS-x moving unit 300 in the x-axis direction, which is perpendicular to the optical axis direction and the y-axis direction.

[0137] When the OIS-x movement unit 300 is moved by the OIS-x driving unit 600, the AF movement unit 200 and the OIS-y movement unit 400 may move together with the OIS-x movement unit 300. The AF movement unit 200 and the OIS-y movement unit 400 may move together with the OIS-x movement unit 300 in the x-axis direction.

[0138] The lens driving device 10 may include an OIS-x magnet 610. The OIS-x driving section 600 may include an OIS-x magnet 610. The OIS-x magnet 610 may be disposed in the OIS-x moving section 300. The OIS-x magnet 610 may be disposed in the OIS-x carrier 310. The OIS-x magnet 610 may be disposed in a hole 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 adhered to the OIS-x carrier 310 with an adhesive. The OIS-x magnet 610 may be disposed within the cover 120. The OIS-x magnet 610 may interact with the OIS-x coil 620. The OIS-x magnet 610 may interact electromagnetically with the OIS-x coil 620. The OIS-x magnet 610 may be disposed at a position corresponding to the OIS-x coil 620. The OIS-x magnet 610 may face the OIS-x coil 620. The OIS-x magnet 610 may face the OIS-x coil 620. The OIS-x magnet 610 may overlap with the OIS-x coil 620 in a direction perpendicular to the optical axis. The OIS-x magnet 610 may overlap with the OIS-x coil 620 in the y-axis direction.

[0139] The OIS-x magnet 610 may 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 portion including a north pole and a south pole, and a second magnet portion including a north pole and a south pole. The first magnet portion and the second magnet portion may be arranged in a horizontal direction. The first magnet portion and the second magnet portion may be arranged apart from each other in the horizontal direction, and a neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0140] In the first embodiment of the present invention, the interaction between OIS-x coil 620 and OIS-x magnet 610 may cause the distance between OIS-x coil 620 and OIS-x magnet 610 to remain constant even when OIS-x magnet 610 moves.

[0141] The lens driving device 10 may include an OIS-x coil 620. The OIS-x driving unit 600 may include an OIS-x coil 620. The OIS-x coil 620 may interact with the OIS-x magnet 610. The OIS-x coil 620 may move the OIS-x magnet 610 in the x-axis direction. The OIS-x coil 620 may move the OIS-x magnet 610 in the x-axis direction through its interaction with the OIS-x magnet 610. The OIS-x coil 620 may face the OIS-x magnet 610. The OIS-x coil 620 may be located at a position corresponding to the OIS-x magnet 610. The OIS-x coil 620 may overlap the OIS-x magnet 610 in the y-axis direction. The OIS-x coil 620 may be located on the substrate 130. The OIS-x coil 620 may be arranged on the substrate 130 at a position corresponding to the OIS-x magnet 610. The OIS-x coil 620 may be arranged on the base 110. The OIS-x coil 620 may be arranged on the side plate 122 of the cover 120. The OIS-x coil 620 may be arranged between the OIS-x magnet 610 and the cover 120. The OIS-x coil 620 may be arranged on the fixed part 100.

[0142] The lens driving device 10 may include an OIS-x sensor 630. The OIS-x driving unit 600 may include an OIS-x sensor 630. The OIS-x sensor 630 may be disposed on the substrate 130. The OIS-x sensor 630 may include a Hall IC. The OIS-x sensor 630 may include a Hall sensor. The OIS-x sensor 630 can sense the OIS-x magnet 610. The OIS-x sensor 630 can sense the magnetic force of the OIS-x magnet 610. The OIS-x sensor 630 can sense the movement of the OIS-x magnet 610. The movement amount or position of the OIS-x magnet 610 sensed by the OIS-x sensor 630 can be used as feedback for image stabilization driving (OIS) in the x-axis direction.

[0143] OIS-x sensor 630 may be disposed inside OIS-x coil 620. OIS-x sensor 630 may overlap with OIS-x coil 620 in the optical axis direction. OIS-x sensor 630 may overlap with the neutral portion of OIS-x magnet 610 in the y-axis direction. As a modification, OIS-x sensor 630 may be disposed outside OIS-x coil 620. OIS-x sensor 630 may face OIS-x magnet 610. OIS-x sensor 630 may be disposed at a position corresponding to OIS-x magnet 610.

[0144] The lens driving device 10 may include an OIS-y driving unit 700. The OIS-y driving unit 700 may move the OIS-y moving unit 400 in the y-axis direction perpendicular to the optical axis direction. The OIS-y driving unit 700 may move the OIS-y carrier 410 in the y-axis direction. The OIS-y driving unit 700 may move the OIS-y carrier 410 in the y-axis direction via electromagnetic force. The OIS-y driving unit 700 may include a coil and a magnet. The OIS-y coil 720 and the OIS-y magnet 710 may move the OIS-y moving unit 400 in the y-axis direction perpendicular to the optical axis direction.

[0145] When the OIS-y movement section 400 is moved by the OIS-y driving section 700, the AF movement section 200 may move together with the OIS-y movement section 400. The AF movement section 200 may move together with the OIS-y movement section 400 in the y-axis direction.

[0146] The lens driving device 10 may include an OIS-y magnet 710. The OIS-y driving unit 700 may include an OIS-y magnet 710. The OIS-y magnet 710 may be arranged in the OIS-y moving unit 400. The OIS-y magnet 710 may be arranged in the OIS-y carrier 410. The OIS-y magnet 710 may be arranged in a groove 413 of the OIS-y carrier 410. The OIS-y magnet 710 may be arranged 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 glued to the OIS-y carrier 410 with an adhesive. The OIS-y magnet 710 may be arranged inside the cover 120. The OIS-y magnet 710 may interact with the OIS-y coil 720. The OIS-y magnet 710 may electromagnetically interact with the OIS-y coil 720. The OIS-y magnet 710 may be disposed at a position corresponding to the OIS-y coil 720. The OIS-y magnet 710 may face the OIS-y coil 720. The OIS-y magnet 710 may face the OIS-y coil 720. The OIS-y magnet 710 may overlap with the OIS-y coil 720 in a direction perpendicular to the optical axis. The OIS-y magnet 710 may overlap with the OIS-x magnet 610 in the x-axis direction.

[0147] The OIS-y magnet 710 may 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 portion including a north pole and a south pole, and a second magnet portion including a north pole and a south pole. The first magnet portion and the second magnet portion may be arranged in a horizontal direction. The first magnet portion and the second magnet portion may be arranged apart from each other in the horizontal direction, and a neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0148] The OIS-y magnet 710 may include multiple magnets. The OIS-y magnet 710 may include two magnets. The OIS-y magnet 710 may include a first unit magnet and a second unit magnet. The first unit magnet and the second unit magnet may be formed to have the same size and shape. The first unit magnet and the second unit magnet may be arranged on both sides of the AF magnet 510. As a modified example, either the first unit magnet or the second unit magnet may be omitted. That is, the OIS-y magnet 710 may be formed only with the first unit magnet. Or, the OIS-y magnet 710 may be formed only with the second unit magnet.

[0149] The first unit magnet and the second unit magnet may be arranged so that the surfaces facing the AF magnet 510 have the same polarity. That is, the first unit magnet may include a first surface facing the AF magnet 510, with the outside of the first surface having an S pole and the inside having an N pole. The second unit magnet may include a second surface facing the AF magnet 510, with the outside of the second surface having an S pole and the inside having an N pole.

[0150] In the first embodiment of the present invention, due to the interaction between the OIS-y coil 720 and the OIS-y magnet 710, the distance between the OIS-y coil 720 and the OIS-y magnet 710 may be maintained constant even when the OIS-y magnet 710 moves.

[0151] The lens driving device 10 may include an OIS-y coil 720. The OIS-y driving unit 700 may include an OIS-y coil 720. The OIS-y coil 720 may interact with the OIS-y magnet 710. The OIS-y coil 720 may move the OIS-y magnet 710 in the y-axis direction. The OIS-y coil 720 may move the OIS-y magnet 710 in the y-axis direction through its interaction with the OIS-y magnet 710. The OIS-y coil 720 may face the OIS-y magnet 710. The OIS-y coil 720 may be located at a position corresponding to the OIS-y magnet 710. The OIS-y coil 720 may overlap the OIS-y magnet 710 in the x-axis direction. The OIS-y coil 720 may be located on the substrate 130. The OIS-y coil 720 may be arranged on the substrate 130 at a position corresponding to the OIS-y magnet 710. The OIS-y coil 720 may be arranged on the base 110. The OIS-y coil 720 may be arranged on the side plate 122 of the cover 120. The OIS-y coil 720 may be arranged between the OIS-y magnet 710 and the cover 120. The OIS-y coil 720 may be arranged on the fixed part 100.

[0152] The OIS-y coil 720 may include multiple coils. The OIS-y coil 720 may include two coils. The OIS-y coil 720 may include a first unit coil 721 and a second unit coil 722. The first unit coil 721 and the second unit coil 722 may be formed to have the same size and shape. The first unit coil 721 and the second unit coil 722 may be disposed on both sides of the AF coil 520. As a modified example, either one of the first unit coil 721 and the second unit coil 722 may be omitted. That is, the OIS-y coil 720 may be formed with only the first unit coil 721. Or, the OIS-y coil 720 may be formed with only the second unit coil 722.

[0153] The lens driving device 10 may include an OIS-y sensor 730. The OIS-y driving unit 700 may include an OIS-y sensor 730. The OIS-y sensor 730 may be disposed on the substrate 130. 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 can sense the OIS-y magnet 710. The OIS-y sensor 730 can sense the magnetic force of the OIS-y magnet 710. The OIS-y sensor 730 can sense the movement of the OIS-y magnet 710. The movement amount or position of the OIS-y magnet 710 sensed by the OIS-y sensor 730 can be used as feedback for image stabilization drive (OIS) in the y-axis direction.

[0154] The OIS-y sensor 730 may be disposed within the OIS-y coil 720. The OIS-y sensor 730 may overlap with the OIS-y coil 720 in the optical axis direction. The OIS-y sensor 730 may overlap with the neutral portion of the OIS-y magnet 710 in the x-axis direction. As a variation, the OIS-y sensor 730 may be disposed outside the OIS-y coil 720. The OIS-y sensor 730 may face the OIS-y magnet 710. The OIS-y sensor 730 may be disposed at a position corresponding to the OIS-y magnet 710.

[0155] The lens driving device 10 may include a guide member. The guide member may include a ball. The guide member may include a pin. The guide member may include a cylindrical member. The guide member can guide the movement of the movable part relative to the fixed part 100 in a specific direction.

[0156] The lens driving device 10 may include an AF guide ball 810. 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 arranged between the AF movement unit 200 and the OIS-y movement unit 400. The AF movement unit 200 and the OIS-y movement unit 400 may include grooves 211, 411 extending in the optical axis direction. The AF guide ball 810 may be arranged between the groove 211 of the AF movement unit 200 and the groove 411 of the OIS-y movement unit 400. The AF guide ball 810 may be arranged between the OIS-y carrier 410 and the AF carrier 210. The AF guide ball 810 may be arranged between the OIS-y carrier 410 and the AF carrier 210 in the x-axis direction. The AF guide ball 810 may be arranged between the inner surface of the OIS-y carrier 410 and the outer surface of the AF carrier 210. When viewed from outside the AF carrier 210, the AF guide balls 810 may overlap with the AF magnets 510 in the horizontal direction. When viewed from above, at least a portion of the AF guide balls 810 may overlap with the AF magnets 510 in the y-axis direction. At least a portion of the AF guide balls 810 may overlap with the AF magnets 510 in the y-axis direction.

[0157] The AF guide ball 810 may be disposed between the groove 411 of the OIS-y movement section 400 and the groove 211 of the AF movement section 200. At least one of the groove 411 of the OIS-y movement section 400 and the groove 211 of the AF movement section 200 may extend longer in the optical axis direction than the diameter of the AF guide ball 810.

[0158] The AF guide balls 810 may be arranged in grooves 411 of the OIS-y carrier 410. The AF guide balls 810 may be arranged in grooves 211 of the AF carrier 210. The AF guide balls 810 may include a 1-1 ball that contacts the OIS-y carrier 410 and the AF carrier 210 at four points, and a 1-2 ball that contacts the OIS-y carrier 410 and the AF carrier 210 at three points. The AF guide balls 810 may be spherical. The AF guide balls 810 may be made of metal. Grease may be applied to the surfaces of the AF guide balls 810.

[0159] The AF guide balls 810 may include multiple balls. The AF guide balls 810 may include six balls. Three AF ​​guide balls 810 may be arranged on one side of the AF magnet 510, and the remaining three AF ​​guide balls 810 may be arranged on the other side of the AF magnet 510.

[0160] The distance between the center of the uppermost ball and the center of the lowermost ball of the AF guide balls 810 may be 40 to 60% of the overall height of the lens driving device 10. In this case, the overall height of the lens driving device 10 may be the distance from the lower surface of the base 110 to the upper surface of the cover 120.

[0161] The lens driving device 10 may include an OIS-x guide ball 820. 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 arranged between the OIS-x movement unit 300 and the fixed unit 100. The OIS-x movement unit 300 and the fixed unit 100 may include grooves 111, 312 extending in the x-axis direction. The OIS-x guide ball 820 may be arranged between the groove 312 of the OIS-x movement unit 300 and the groove 111 of the fixed unit 100. The OIS-x guide ball 820 may be arranged between the base 110 and the OIS-x carrier 310. The OIS-x guide ball 820 may be arranged between the base 110 and the OIS-x carrier 310 in the y-axis direction. The entire area of ​​the OIS-x guide ball 820 from its lower end to its upper end may overlap with both the base 110 and the OIS-x carrier 310 in the y-axis direction. The entire area of ​​the OIS-x guide ball 820 may overlap with both the base 110 and the OIS-x carrier 310 in the y-axis direction. The OIS-x guide ball 820 may be disposed between the side plate 113 of the base 110 and the side plate 314 of the OIS-x carrier 310. The OIS-x guide ball 820 may be disposed between the inner surface of the side plate 113 of the base 110 and the outer surface of the side plate 314 of the OIS-x carrier 310. When viewed from the outside of the OIS-x carrier 310, the OIS-x guide ball 820 may overlap with the OIS-x magnet 610 in the horizontal direction. At least a portion of the OIS-x guide ball 820 may overlap with the OIS-x magnet 610 in the x-axis direction.

[0162] The OIS-x guide ball 820 may be disposed between the groove 111 of the base 110 and the groove 312 of the OIS-x movement section 300. At least one of the groove 111 of the base 110 and the groove 312 of the OIS-x movement section 300 may extend longer in the x-axis direction than the diameter of the OIS-x guide ball 820.

[0163] The OIS-x guide balls 820 may be disposed in grooves 111 of the base 110. The OIS-x guide balls 820 may be disposed in grooves 312 of the OIS-x carrier 310. The OIS-x guide balls 820 may include a first ball 1-1 that contacts the base 110 and the OIS-x carrier 310 at four points, and a first ball 1-2 that contacts the base 110 and the OIS-x carrier 310 at three points. The OIS-x guide balls 820 may be spherical. The OIS-x guide balls 820 may be made of metal. Grease may be applied to the surfaces of the OIS-x guide balls 820.

[0164] The OIS-x guide balls 820 may include multiple balls. The OIS-x guide balls 820 may include four balls. Two OIS-x guide balls 820 may be arranged on one side of the OIS-x magnet 610, and the remaining two OIS-x guide balls 820 may be arranged on the other side of the OIS-x magnet 610.

[0165] The lens driving device 10 may include an OIS-y guide ball 830. 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 may be arranged between the OIS-y movement unit 400 and the OIS-x carrier 310. The OIS-y guide ball 830 may be arranged between the OIS-y movement unit 400 and the OIS-x carrier 310 in the optical axis direction. The OIS-y movement unit 400 and the OIS-x movement unit 300 may include grooves 311, 412 extending in the y-axis direction. The OIS-y guide ball 830 may be arranged between the groove 412 of the OIS-y movement unit 400 and the groove 311 of the OIS-x movement unit 300. The OIS-y guide ball 830 may be arranged between the OIS-x carrier 310 and the OIS-y carrier 410. The OIS-y guide ball 830 may be arranged between the base 110 and the OIS-y carrier 410 in the optical axis direction. The OIS-y guide ball 830 may be arranged in the groove 311 of the OIS-x carrier 310. The OIS-y guide ball 830 may be arranged between the lower plate 313 of the OIS-x carrier 310 and the OIS-y carrier 410. The OIS-y guide ball 830 may be arranged between the upper surface of the lower plate 313 of the OIS-x carrier 310 and the lower surface of the OIS-y carrier 410.

[0166] The OIS-y guide ball 830 may be disposed between the groove 311 of the OIS-x movement unit 300 and the groove 412 of the OIS-y movement unit 400. At least one of the groove 311 of the OIS-x movement unit 300 and the groove 412 of the OIS-y movement unit 400 may extend in the y-axis direction longer than the diameter of the OIS-y guide ball 830.

[0167] The OIS-y guide balls 830 may be arranged in grooves 311 of the OIS-x carrier 310. The OIS-y guide balls 830 may be arranged in grooves 412 of the OIS-y carrier 410. The OIS-y guide balls 830 may include a first-1 ball that contacts the OIS-x carrier 310 and the OIS-y carrier 410 at four points, and a first-2 ball that contacts the OIS-x carrier 310 and the OIS-y carrier 410 at three points. The OIS-y guide balls 830 may be spherical. The OIS-y guide balls 830 may be made of metal. Grease may be applied to the surfaces of the OIS-y guide balls 830.

[0168] The OIS-y guide balls 830 may include multiple balls. The OIS-y guide balls 830 may include four balls. Two OIS-y guide balls 830 may be arranged on one side of the AF magnet 510, and the remaining two OIS-y guide balls 830 may be arranged on the other side of the AF magnet 510.

[0169] The lens driving device 10 may include a ball pressing member. The ball pressing member may include a yoke. The yoke may be an "attractive yoke." The yoke may be an "attractive 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.

[0170] The yoke may include multiple yokes. The yoke may include three yokes. The yoke may include an AF gravitational force yoke 910, an OIS-x gravitational force yoke 920, and an OIS-y gravitational force yoke 930. The AF gravitational force yoke 910, the OIS-x gravitational force yoke 920, and the OIS-y gravitational force yoke 930 may be spaced apart from one another.

[0171] The lens driving device 10 may include an AF attractive force yoke 910. The AF attractive force yoke 910 may be disposed in the OIS-y moving unit 400. The AF attractive force yoke 910 may be disposed in the OIS-y carrier 410. The AF attractive force yoke 910 may be coupled to the OIS-y carrier 410. The AF attractive force yoke 910 may be fixed to the OIS-y carrier 410. The AF attractive force yoke 910 may be adhered to the OIS-y carrier 410 with an adhesive. The AF attractive force yoke 910 may be disposed on the outer surface of the OIS-y carrier 410. The AF attractive force yoke 910 may be disposed in a position corresponding to the AF magnet 510. An attractive force may act between the AF attractive force yoke 910 and the AF magnet 510. An attractive force may be generated between the AF attractive force yoke 910 and the AF magnet 510. The AF guide ball 810 may be pressed by the attractive force between the AF attractive force yoke 910 and the AF magnet 510. The attractive force between the AF attractive force yoke 910 and the AF magnet 510 may pressurize the AF guide ball 810 between the AF carrier 210 and the OIS-y carrier 410 .

[0172] The AF attraction yoke 910 may include multiple yokes. The multiple yokes may include a first yoke and a second yoke spaced apart from each other. The first yoke and the second yoke may be disposed on either side of the AF magnet 510. The first yoke may be disposed on one side of the AF magnet 510, and the second yoke may be disposed on the other side of the AF magnet 510. The first yoke and the second yoke may be disposed to extend in the optical axis direction. As a variant, the AF attraction yoke 910 may include a third yoke connecting a lower end of the first yoke and a lower end of the second yoke.

[0173] In the first embodiment of the present invention, the AF attractive yoke 910 is disposed on the OIS-y carrier 410, so that the OIS-x drive is not affected. If, as a comparative example, the AF attractive yoke 910 were disposed on the substrate 130, i.e., the fixed part 100, the attractive force between the AF attractive yoke 910 and the AF magnet 510 might interfere with the OIS-x drive.

[0174] The lens driving device 10 may include an OIS-x gravitational force yoke 920. The OIS-x gravitational force yoke 920 may be disposed on the fixed part 100. The OIS-x gravitational force yoke 920 may be disposed on the base 110. The OIS-x gravitational force yoke 920 may be coupled to the base 110. The OIS-x gravitational force yoke 920 may be fixed to the base 110. The OIS-x gravitational force yoke 920 may be adhered to the base 110 with an adhesive. The OIS-x gravitational force yoke 920 may be disposed on the substrate 130. The OIS-x gravitational force yoke 920 may be coupled to the substrate 130. The OIS-x gravitational force yoke 920 may be fixed to the substrate 130. The OIS-x gravitational force yoke 920 may be adhered to the substrate 130 with an adhesive. The OIS-x gravitational force yoke 920 may be disposed between the base 110 and the substrate 130. The OIS-x attraction yoke 920 may be disposed in the groove 114 of the base 110 .

[0175] The OIS-x attractive force yoke 920 may be disposed at a position corresponding to the OIS-x magnet 610. An attractive force may act between the OIS-x attractive force yoke 920 and the OIS-x magnet 610. An attractive force may be generated between the OIS-x attractive force yoke 920 and the OIS-x magnet 610. The attractive force between the OIS-x attractive force yoke 920 and the OIS-x magnet 610 may pressurize the OIS-x guide ball 820. The attractive force between the OIS-x attractive force yoke 920 and the OIS-x magnet 610 may pressurize the OIS-x guide ball 820 between the OIS-x carrier 310 and the base 110.

[0176] The OIS-x gravitational force yoke 920 may include a hole in which the OIS-x coil 620 may be disposed.

[0177] The lens driving device 10 may include an OIS-y attractive force yoke 930. The OIS-y attractive force yoke 930 may be disposed in the OIS-x moving unit 300. The OIS-y attractive force yoke 930 may be disposed in the OIS-x carrier 310. The OIS-y attractive force yoke 930 may be coupled to the OIS-x carrier 310. The OIS-y attractive force yoke 930 may be fixed to the OIS-x carrier 310. The OIS-y attractive force yoke 930 may be adhered to the OIS-x carrier 310 with an adhesive. The OIS-y attractive force yoke 930 may be disposed on the lower plate 313 of the OIS-x carrier 310. The OIS-y attractive force yoke 930 may be disposed on the upper surface of the lower plate 313 of the OIS-x carrier 310. The OIS-y attractive force yoke 930 may be disposed at a position corresponding to the OIS-y magnet 710. The OIS-y attractive force yoke 930 may exert an attractive force on the OIS-y magnet 710. An attractive force may be generated between the OIS-y attractive force yoke 930 and the OIS-y magnet 710. The attractive force between the OIS-y attractive force yoke 930 and the OIS-y magnet 710 may apply pressure to the OIS-y guide ball 830. The attractive force between the OIS-y attractive force yoke 930 and the OIS-y magnet 710 may apply pressure to the OIS-y guide ball 830 between the OIS-y carrier 410 and the OIS-x carrier 310.

[0178] The OIS-y attractive force yoke 930 may be formed in a "C" shape. The OIS-y attractive force yoke 930 may be formed in a "U" shape. The OIS-y attractive force yoke 930 may include a first yoke portion and a second yoke portion arranged parallel to each other, and a third yoke portion connecting the first yoke portion and the second yoke portion. The OIS-y attractive force yoke 930 may be formed in a shape that is bent twice.

[0179] The first embodiment of the present invention may include a structure in which the OIS carrier is disposed on a side portion of the base 110. The AF carrier 210 may be housed in the OIS carrier. One of the OIS carriers may be supported on a side wall of the base 110. The remaining one may be supported by another OIS carrier rather than on the side wall of the base 110. One of the OIS guide balls may be disposed on a side wall of the base 110, while the remaining one may be disposed on the bottom of the base 110. While the ball may be positioned toward the bottom of the base 110, its actual support may be toward the bottom of the OIS carrier. At least one OIS driving coil and one AF driving coil may be disposed on the same surface. In this case, the OIS driving coil disposed on the same surface may be divided into two, or may be configured as one. An AF attraction yoke 910 for supporting the AF carrier 200 may be disposed on the OIS carrier. The AF magnet 510 may have a structure, such as a C-cut, for transmitting magnetic force toward the AF attractive yoke 910 in order to achieve a greater attractive force with the AF attractive yoke 910. The OIS-y attractive yoke 930 may be located toward the bottom of the OIS-x carrier 310. The OIS-y guide ball 830 may be located toward the bottom with respect to the base 110. The OIS-y magnet 710 may have a structure, such as a C-cut, for transmitting magnetic force toward the OIS-y attractive yoke 930 in order to achieve a greater attractive force with the OIS-y attractive yoke 930. The OIS-x attractive yoke 920 may be located on a side wall of the base 110. The OIS-x attractive yoke 920 may have a hole of a certain size, and the OIS-x coil 620 may be disposed between the hole and the OIS-x attractive yoke 920. However, as a variant, the hole may be omitted from the OIS-x attractive yoke 920. By providing the hole, the size of the OIS-x attractive yoke 920 can be reduced by the thickness thereof.

[0180] OIS-y movement unit 400 may include a first surface on which a first guide portion that guides movement of AF movement unit 200 in the y-axis direction is formed, and a second surface on which a third guide portion that guides movement of AF movement unit 400 in the optical axis direction is formed. In this case, the first guide portion may be OIS-y guide ball 830, and the third guide portion may be AF guide ball 810.

[0181] The side plate 113 of the fixed unit 100 may include a first side plate and a second side plate adjacent to each other. The OIS-x mover 300 may include a first guide portion that guides the AF mover 200 to move in the x-axis direction and a second guide portion that guides the AF mover 200 to move in the y-axis direction. The OIS-y mover 400 may be disposed between the first side plate of the fixed unit 100 and the AF mover 200. The first guide portion may be disposed between the lower surface of the OIS-y mover 400 and the bottom plate of the fixed unit 100. The second guide portion may be disposed between the side surface of the AF mover 200 and the second side plate of the fixed unit 100. In this case, the first guide portion may be an OIS-y guide ball 830, and the second guide portion may be an OIS-x guide ball 820.

[0182] The AF moving unit 200 may move relative to the fixed unit 100. The OIS-y moving unit 400 can guide the AF moving unit 200 to move in the optical axis direction. The OIS-x moving unit 300 can guide the AF moving unit 200 to move in first and second directions perpendicular to the optical axis direction. The AF guide ball 810 may be disposed between the AF moving unit 200 and the OIS-y moving unit 400. The OIS-y guide ball 830 may be disposed between the lower surface of the OIS-y moving unit 400 and the upper surface of the OIS-x moving unit 300. The OIS-x guide ball 820 may be disposed between the OIS-x moving unit 300 and a side plate of the fixed unit 100.

[0183] The assembly process of the lens driving device according to the first embodiment of the present invention will be described below with reference to the drawings.

[0184] FIG. 20 is a diagram illustrating a process of coupling an AF magnet to an AF carrier to form an AF carrier assembly. FIG. 21 is a diagram illustrating a process of coupling an OIS-y magnet and an AF attractive yoke to an OIS-y carrier to form an OIS-y carrier assembly. FIG. 22 is a diagram illustrating a process of coupling an OIS-x magnet and an OIS-y attractive yoke to an OIS-x carrier to form an OIS-x carrier assembly. FIG. 23 is a diagram illustrating a process of coupling an OIS-x attractive yoke and a substrate assembly to a base. In this case, the substrate assembly may include a substrate and a coil and a sensor coupled to the substrate. FIG. 24 is a diagram illustrating a process of coupling an OIS-x guide ball and an OIS-x carrier assembly in the final state of FIG. 23. FIG. 25 is a diagram illustrating a process of coupling an OIS-y guide ball, an OIS-y carrier assembly, and an AF guide ball in the final state of FIG. 24. FIG. 26 is a diagram illustrating the process of assembling the AF carrier assembly and the cover into a lens driving device in the final state of FIG.

[0185] As shown in FIG. 20, an AF magnet 510 may be disposed in the groove 212 of the AF carrier 210 to form an AF carrier assembly. As shown in FIG. 21, an OIS-y magnet 710 may be disposed in the groove 413 of the OIS-y carrier 410, and an AF attractive yoke 910 may be disposed in the groove 414 of the OIS-y carrier 410 to form an OIS-y carrier assembly. As shown in FIG. 22, an OIS-x magnet 610 may be disposed in the hole 315 of the OIS-x carrier 310, and an OIS-y attractive yoke 930 may be disposed on the lower plate 313 of the OIS-x carrier 310 to form an OIS-x carrier assembly. As shown in FIG. 23, an OIS-x attractive yoke 920 and a substrate assembly may be disposed on the base 110. In this case, the substrate assembly may include a substrate 130, coils 520, 620, and 720, and sensors 530, 630, and 730 coupled to the substrate. Thereafter, as shown in Fig. 24, the OIS-x guide ball 820 and the OIS-x carrier assembly may be arranged in the final state of Fig. 23. Thereafter, as shown in Fig. 25, the OIS-y guide ball 830 and the OIS-y carrier assembly may be arranged, and the AF guide ball 810 may be arranged, in the final state of Fig. 24. Thereafter, as shown in Fig. 26, the AF carrier assembly may be arranged in the final state of Fig. 25, and the cover 120 may be coupled.

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

[0187] 27 to 29 are diagrams illustrating autofocus driving of the lens driving device according to the first embodiment of the present invention. Fig. 27 is a cross-sectional view illustrating the state of the AF moving unit in the initial state when no current is applied to the AF coil. Fig. 28 is a cross-sectional view illustrating the state when a forward current is applied to the AF coil and the AF moving unit has moved upward in the optical axis direction. Fig. 29 is a cross-sectional view illustrating the state when a reverse current is applied to the AF coil and the AF moving unit has moved downward in the optical axis direction.

[0188] The moving part may be disposed at a position separated from both the upper plate 121 of the cover 120 and the base 110 in an initial position where no current is applied to the AF coil 520. In this case, the moving part may be the AF moving part 200.

[0189] When a forward current is applied to the AF coil 520, the AF magnet 510 can move upward in the optical axis direction due to electromagnetic interaction between the AF coil 520 and the AF magnet 510 (see A in FIG. 28). At this time, the AF carrier 210 may move upward in the optical axis direction together with the AF magnet 510. Furthermore, the lens may move upward in the optical axis direction together with the AF carrier 210. Accordingly, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor via the lens may be adjusted.

[0190] When a reverse current is applied to the AF coil 520, the AF magnet 510 can move downward in the optical axis direction due to electromagnetic interaction between the AF coil 520 and the AF magnet 510 (see B in FIG. 29). At this time, the AF carrier 210 may move downward in the optical axis direction together with the AF magnet 510. Furthermore, the lens may move downward in the optical axis direction together with the AF carrier 210. Accordingly, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor via the lens may be adjusted.

[0191] 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 sensed by the AF sensor 530 can be used for autofocus feedback control.

[0192] Hereinafter, optical image stabilization (OIS) driving of a lens driving device according to a first embodiment of the present invention will be described with reference to the drawings.

[0193] 30 to 32 are diagrams illustrating the image stabilization drive of the lens driving device according to the first embodiment of the present invention. Fig. 30 is a cross-sectional view illustrating the state of the moving unit in the initial state when no current is applied to the OIS-y coil and the OIS-x coil. Fig. 31 is a cross-sectional view illustrating the state when a current is applied to the OIS-x coil, and the OIS-x moving unit, the OIS-y moving unit, and the AF moving unit move in the x-axis direction perpendicular to the optical axis. Fig. 32 is a cross-sectional view illustrating the state when a current is applied to the OIS-y coil, and the OIS-y moving unit and the AF moving unit move in the y-axis direction perpendicular to the optical axis.

[0194] 30 , the moving section may be placed 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 section may be the OIS-x moving section 300 and the OIS-y moving section 400. Alternatively, the moving section may include the AF moving section 200, the OIS-x moving section 300, and the OIS-y moving section 400.

[0195] When a current is applied to the OIS-x coil 620, electromagnetic interaction between the OIS-x coil 620 and the OIS-x magnet 610 causes the OIS-x magnet 610 to move in the x-axis direction, which is perpendicular to the optical axis (see A in FIG. 31 ). At this time, the OIS-x carrier 310 may move in the x-axis direction together with the OIS-x magnet 610. Furthermore, the OIS-y carrier 410, AF carrier 210, and lens may move in the x-axis direction together 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 may move in one direction on the x-axis. Furthermore, when a reverse current is applied to the OIS-x coil 620, the OIS-x magnet 610, the OIS-x carrier 310, the OIS-y carrier 410, the AF carrier 210, and the lens may move in the other direction on the x-axis.

[0196] When a current is applied to the OIS-y coil 720, electromagnetic interaction between the OIS-y coil 720 and the OIS-y magnet 710 causes the OIS-y magnet 710 to move in the y-axis direction, which is perpendicular to the optical axis (see B in FIG. 32 ). At this time, the OIS-y carrier 410 may move in the y-axis direction together with the OIS-y magnet 710. Furthermore, the AF carrier 210 and the lens may move in the y-axis direction together with the OIS-y carrier 410. More specifically, when a forward current is applied to the OIS-y coil 720, the OIS-y magnet 710, the OIS-y carrier 410, the AF carrier 210, and the lens may move in one direction on the y-axis. Furthermore, when a reverse current is applied to the OIS-y coil 720, the OIS-y magnet 710, the OIS-y carrier 410, the AF carrier 210, and the lens may move in the other direction on the y-axis.

[0197] Meanwhile, the OIS-x sensor 630 senses 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 x-axis direction image stabilization feedback control. The OIS-y sensor 730 senses 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 y-axis direction image stabilization feedback control.

[0198] A camera device according to a first embodiment of the present invention will be described below with reference to the drawings.

[0199] FIG. 33 is an exploded perspective view of the camera device according to the first embodiment of the present invention.

[0200] The camera device 10A may include a camera module.

[0201] The camera device 10A may include a lens module 20. The lens module 20 may include at least one lens. The lens may be disposed at a position corresponding to the image sensor 60. The lens module 20 may include a lens and a barrel. The lens module 20 may be coupled to an AF carrier 210 of the lens driving device 10. The lens module 20 may be coupled to the AF carrier 210 by screws and / or adhesive. The lens module 20 may move integrally with the AF carrier 210.

[0202] The camera device 10A may include a filter 30. The filter 30 can block light of a specific frequency band from passing through the lens module 20 from entering the image sensor 60. The filter 30 can be arranged parallel to the xy plane. The filter 30 can be arranged between the lens module 20 and the image sensor 60. The filter 30 can be arranged on the sensor base 40. Alternatively, the filter 30 can be arranged on the base 110. The filter 30 can include an infrared filter. The infrared filter can block light in the infrared region from entering the image sensor 60.

[0203] The camera device 10A may include a sensor base 40. The sensor base 40 may be disposed between the lens driver 10 and the printed circuit board 50. The sensor base 40 may include a protrusion 41 on which the filter 30 is disposed. An opening may be formed in the portion of the sensor base 40 where the filter 30 is disposed so that light passing through the filter 30 can enter the image sensor 60. An adhesive member may bond or adhere the base 110 of the lens driver 10 to the sensor base 40. The adhesive member may also serve to prevent foreign matter from entering the interior of the lens driver 10. The adhesive member may include at least one of epoxy, a heat-curable adhesive, and an ultraviolet-curable adhesive.

[0204] The camera device 10A may include a printed circuit board (PCB) 50. The printed circuit board 50 may be a substrate or a circuit board. The lens driving device 10 may be disposed on the printed circuit board 50. A sensor base 40 may be disposed between the printed circuit board 50 and the lens driving device 10. The printed circuit board 50 may be electrically connected to the lens driving device 10. An image sensor 60 may be disposed on the printed circuit board 50. The printed circuit board 50 may be provided with various circuits, elements, a control unit, etc. for converting an image formed on the image sensor 60 into an electrical signal and transmitting the signal to an external device.

[0205] The camera device 10A may include an image sensor 60. The image sensor 60 may be configured to form an image by receiving light that has passed through a lens and a filter 30. The image sensor 60 may be mounted on a printed circuit board 50. The image sensor 60 may be electrically connected to the printed circuit board 50. For example, the image sensor 60 may be attached to the printed circuit board 50 using surface mounting technology (SMT). For another example, the image sensor 60 may be attached to the printed circuit board 50 using flip chip technology. The image sensor 60 may be disposed so that its optical axis coincides with that of a lens. That is, the optical axis of the image sensor 60 and the optical axis of the lens may be aligned. The image sensor 60 may convert light irradiated onto an effective image area of ​​the image sensor 60 into an electrical signal. The image sensor 60 may be any one of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID.

[0206] The camera device 10A may include a motion sensor 70. The motion sensor 70 may be mounted on the printed circuit board 50. The motion sensor 70 may be electrically connected to the control unit 80 via a circuit pattern provided on the printed circuit board 50. The motion sensor 70 may output rotational angular velocity information according to the movement of the camera device 10A. The motion sensor 70 may include a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0207] The camera device 10A may include a control unit 80. The control unit 80 may be disposed on the printed circuit board 50. The control unit 80 may be electrically connected to the coils 520, 620, and 720 and the sensors 530, 630, and 730 of the lens driving device 10. The control unit 80 may individually control the direction, strength, amplitude, etc. of the current supplied to the coil 330. The control unit 80 may control the lens driving device 10 to perform an autofocus function and / or an image stabilization function. The control unit 80 may also perform autofocus feedback control and / or image stabilization feedback control for the lens driving device 10.

[0208] 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.

[0209] An optical apparatus according to a first embodiment of the present invention will now be described with reference to the drawings.

[0210] FIG. 34 is a perspective view of the optical device according to the first embodiment of the present invention, and FIG. 35 is a perspective view of the optical device according to a modified example.

[0211] The optical device 1 may include one or more of a mobile terminal, a mobile phone, a portable terminal, a mobile terminal, a smartphone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), and a navigation system. The optical device 1 may also include any device for taking videos or photos.

[0212] The optical device 1 may include a main body 20. The optical device 1 may include a camera device 10A. The camera device 10A may be disposed in the main body 20. The camera device 10A may be capable of photographing a subject. The optical device 1 may include a display. The display may be disposed in the main body 20. The display may output one or more of a video and an image photographed by the camera device 10A. The display may be disposed on a first surface of the main body 20. The camera device 10A may be disposed on one or more of the first surface and a second surface opposite the first surface of the main body 20. As shown in FIG. 34, the camera device 10A may have triple cameras arranged vertically. As shown in FIG. 35, the camera device 10A-1 may have triple cameras arranged horizontally.

[0213] The configuration of a lens driving device according to a second embodiment of the present invention will be described below with reference to the drawings.

[0214] FIG. 36 is a perspective view of a lens driving device according to a second embodiment of the present invention. FIG. 37(a) is a plan view of the lens driving device according to the second embodiment of the present invention, and FIG. 37(b) is a side view. FIG. 38 is a cross-sectional view taken along line aa in FIG. 36. FIG. 39 is a cross-sectional view taken along line bb in FIG. 36. FIG. 40 is a cross-sectional view taken along line cc in FIG. 36. FIG. 41 is a cross-sectional view taken along line dd in FIG. 36. FIG. 42 is a cross-sectional view taken along line ee in FIG. 36. FIG. 43 is a cross-sectional view of a lens driving device according to a second embodiment of the present invention, cut in a direction perpendicular to the optical axis. FIG. 44 is an exploded perspective view of a lens driving device according to the second embodiment of the present invention. FIG. 45 is a plan view and a partially enlarged view of a lens driving device according to the second embodiment of the present invention with the cover removed. FIG. 46 is a perspective view of a lens driving device according to the second embodiment of the present invention with the cover removed. FIG. 47 is a partially enlarged perspective view of a portion of FIG. 46. FIG. 48 is a perspective view of a lens driving device according to the second embodiment of the present invention with the cover and AF carrier removed. FIG. 49 is a bottom perspective view of the OIS-y carrier of the lens driving device according to the second embodiment of the present invention. FIG. 50 is a partial enlarged view of FIG. 48 with the OIS-y carrier removed. FIG. 51 is an enlarged view of the AF guide shaft, OIS-y guide ball, and related components of FIG. 50. FIG. 52 is a perspective view of the lens driving device according to the second embodiment of the present invention with the cover, AF carrier, OIS-y carrier, and substrate removed. FIG. 53 is a perspective view of FIG. 52 with the base removed. FIG. 54 is a perspective view illustrating the OIS-x carrier, driving unit, guide member, and attraction member.

[0215] The lens driving device 1010 may be a voice coil motor (VCM). The lens driving device 1010 may be a lens driving motor. The lens driving device 1010 may be a lens driving actuator. The lens driving device 1010 may include an AF module. The lens driving device 1010 may include an OIS module.

[0216] The lens driving device 1010 may include a fixed portion 1100. The fixed portion 1100 may be a portion that is fixed relative to the moving portion when the moving portion moves. The moving portion may move relative to the fixed portion 1100. The fixed portion 1100 may be disposed outside the moving portion. The fixed portion 1100 may house the moving portion inside.

[0217] The lens driving device 1010 may include a base 1110. The fixed portion 1100 may include a base 1110. The base 1110 may be disposed below the AF carrier 1210. The base 1110 may be disposed below the OIS-x carrier 1310. The base 1110 may be disposed below the OIS-y carrier 1410. The base 1110 may be coupled to the cover 1120. The AF carrier 1210, the OIS-x carrier 1310, and the OIS-y carrier 1410 may be disposed on the base 1110. The AF carrier 1210, the OIS-x carrier 1310, and the OIS-y carrier 1410 may be disposed on a bottom plate 1112 of the base 1110. The AF carrier 1210, the OIS-x carrier 1310, and the OIS-y carrier 1410 may be disposed within the base 1110. The AF carrier 1210 , the OIS-x carrier 1310 and the OIS-y carrier 1410 may be disposed within the side plate 1113 of the base 1110 .

[0218] The base 1110 may include a groove 1111. The fixing portion 1100 may include a groove 1111. The groove 1111 may be an "OIS-x guide ball receiving groove." The groove 1111 may be formed by being recessed in the base 1110. The groove 1111 may be formed by a depression in one surface of the base 1110. The groove 1111 may be formed in a side plate 1113 of the base 1110. The groove 1111 may be formed on the inner surface of the side plate 1113 of the base 1110. The OIS-x guide ball 1820 may be disposed in the groove 1111. The groove 1111 may be in direct contact with the OIS-x guide ball 1820. The groove 1111 may be disposed in the x-axis direction perpendicular to the optical axis. The groove 1111 may include multiple grooves. The groove 1111 may include four grooves. The four grooves may be arranged parallel to one another. Groove 1111 may include a first groove that contacts OIS-x guide ball 1820 at two points and a second groove that contacts OIS-x guide ball 1820 at one point. As a variation, both the first groove and the second groove may contact OIS-x guide ball 1820 at two points.

[0219] The base 1110 may include a lower plate 1112. The fixed portion 1100 may include a lower plate 1112. The base 1110 may include a side plate 1113. The fixed portion 1100 may include a side plate 1113. The side plate 1113 of the base 1110 may be a "side portion." The side plate 1113 of the base 1110 may extend from an upper surface of the lower plate 1112. The side plate 1113 of the base 1110 may include multiple side plates. The side plate 1113 of the base 1110 may include four side plates. The base 1110 may include first and second side portions arranged opposite each other, and third and fourth side portions arranged opposite each other. The AF coil 1520 and the OIS-y coil 1720 may be arranged on the first side of the base 1110. The OIS-x coil 1620 may be disposed on a third side of the base 1110 .

[0220] The base 1110 may include a groove 1114. The fixing portion 1100 may include a groove 1114. The groove 1114 may be a "yoke receiving groove." The groove 1114 may be formed in a side plate 1113 of the base 1110. The groove 1114 may be formed on an outer surface of the side plate 1113 of the base 1110. The OIS-x attraction yoke 1920 may be disposed in the groove 1114. The groove 1114 may include a shape corresponding to at least a portion of the OIS-x attraction yoke 1920.

[0221] The lens driving device 1010 may include a cover 1120. The fixed portion 1100 may include the cover 1120. The cover 1120 may be disposed on the base 1110. The cover 1120 may be coupled to the base 1110. The cover 1120 may be fixed to the base 1110. The cover 1120 may be adhered to the base 1110 with an adhesive. The cover 1120 may house the AF carrier 1210 therein. The cover 1120 may house the OIS-x carrier 1310 therein. The cover 1120 may house the OIS-y carrier 1410 therein. The cover 1120 may be a shielding member. The cover 1120 may be a shielding can.

[0222] The cover 1120 may include an upper plate 1121. The upper plate 1121 may be disposed on the moving part. The upward movement of the moving part may be restricted by the moving part coming into contact with the upper plate 1121. The upper plate 1121 may include a hole through which light passes.

[0223] The cover 1120 may include side plates 1122. The side plates 1122 may extend from the top plate 1121. The side plates 1122 may be disposed on the base 1110. The side plates 1122 may be disposed on a stepped portion formed to protrude from the lower end of the outer surface of the base 1110. The side plates 1122 may include a plurality of side plates. The side plates 1122 may include four side plates. The side plates 1122 may include a first side plate and a second side plate disposed opposite to each other, and a third side plate and a fourth side plate disposed opposite to each other.

[0224] In a second embodiment of the present invention, the AF coil 1520 and the OIS-y coil 1720 may be arranged between the moving part and the first side plate of the cover 1120. The AF coil 1520 and the OIS-y coil 1720 may be arranged between the AF carrier 1210 and the first side plate of the cover 1120. The AF coil 1520 and the OIS-y coil 1720 may be arranged between the OIS-y carrier 1410 and the first side plate of the cover 1120. The AF coil 1520 and the OIS-y coil 1720 may be arranged on the first side plate of the cover 1120. The AF coil 1520 and the OIS-y coil 1720 may be arranged at a position corresponding to the first side plate of the cover 1120.

[0225] The lens driving device 1010 may include a substrate 1130. The fixed part 1100 may include a substrate 1130. The substrate 1130 may be disposed on the base 1110. The substrate 1130 may be disposed on a side plate 1113 of the base 1110. The substrate 1130 may be disposed on an outer surface of the side plate 1122 of the cover 1120. The substrate 1130 may be disposed parallel to the optical axis. The substrate 1130 may be a circuit board. The substrate 1130 may be a printed circuit board. The substrate 1130 may include an FPCB (Flexible Printed Circuit Board). The substrate 1130 may have ductility. The substrate 1130 may be bendable.

[0226] The substrate 1130 may include a first portion and a third portion disposed on opposite sides of each other, and a second portion connecting the first portion and the third portion. In this case, the OIS-y coil 1720 may be disposed on the first portion of the substrate 1130. The OIS-x coil 1620 may be disposed on the second portion of the substrate 1130. The AF coil 1520 may be disposed on the third portion of the substrate 1130.

[0227] The substrate 1130 may include a main body portion. The coils 1520, 1620, and 1720 may be disposed in the main body portion. The substrate 1130 may include a terminal 1131. The terminal 1131 may be disposed in a terminal portion extending downward from the main body portion. The terminal 1131 may be formed at a lower end portion of the substrate 1130. The terminal 1131 may protrude below the base 1110.

[0228] The terminal 1131 may include a plurality of terminals. The terminal 1131 of the substrate 1130 may be electrically connected to the coils 1520, 1620, and 1720. The terminal 1131 of the substrate 1130 may be electrically connected to the AF coil 1520. The terminal 1131 of the substrate 1130 may be electrically connected to the OIS-x coil 1620. The terminal 1131 of the substrate 1130 may be electrically connected to the OIS-y coil 1720. The terminal 1131 of the substrate 1130 may be electrically connected to the sensors 1530, 1630, and 1730. The terminal 1131 of the substrate 1130 may be electrically connected to the AF sensor 1530. The terminal 1131 of the substrate 1130 may be electrically connected to the OIS-x sensor 1630. The terminal 1131 of the substrate 1130 may be electrically connected to the OIS-y sensor 1730. The terminals 1131 may be coupled to the printed circuit board 1050. The terminals 1131 may be coupled to the printed circuit board 1050 via solder. The terminals 1131 may be coupled to the printed circuit board 1050 via a conductive member.

[0229] The lens driving device 1010 may include a moving unit. The moving unit may be arranged on the fixed unit 1100. The moving unit may be arranged inside the fixed unit 1100. The moving unit may be arranged on the fixed unit 1100. The moving unit may be arranged movably on the fixed unit 1100. The moving unit may be moved by a driving unit based on the fixed unit 1100. The moving unit may move during AF driving. The moving unit may move during OIS driving. A lens may be coupled to the moving unit.

[0230] The lens driving device 1010 may include an AF moving unit 1200. The AF moving unit 1200 may be disposed in the fixed unit 1100. The AF moving unit 1200 may be disposed within the fixed unit 1100. The AF moving unit 1200 may be disposed on the fixed unit 1100. The AF moving unit 1200 may be disposed within the OIS-x moving unit 1300. The AF moving unit 1200 may be disposed on the OIS-x moving unit 1300. The AF moving unit 1200 may be disposed within the OIS-y moving unit 1400. The AF moving unit 1200 may be disposed on the OIS-y moving unit 1400. The AF moving unit 1200 may be disposed movably. The AF moving unit 1200 may be moved in the optical axis direction by an AF driving unit 1500 relative to the fixed unit 1100, the OIS-x moving unit 1300, and the OIS-y moving unit 1400. The AF movement unit 1200 may move during AF driving.

[0231] When a current is applied to the OIS-y coil 1720, the AF mover 1200 may move together with the OIS-y mover 1400. When a current is applied to the OIS-x coil 1620, the AF mover 1200 and the OIS-y mover 1400 may move together with the OIS-x mover 1300.

[0232] The lens driving device 1010 may include an AF carrier 1210. The AF movement unit 1200 may include an AF carrier 1210. The AF carrier 1210 may be a "bobbin." The AF carrier 1210 may be an "AF holder." The AF carrier 1210 may be disposed within the base 1110. The AF carrier 1210 may be disposed on the base 1110. The AF carrier 1210 may be disposed within the OIS-x carrier 1310. The AF carrier 1210 may be disposed on the OIS-x carrier 1310. The AF carrier 1210 may be disposed within the OIS-y carrier 1410. The AF carrier 1210 may be disposed on the OIS-y carrier 1410. The AF carrier 1210 may be disposed within the cover 1120. The AF carrier 1210 may be disposed so as to be movable in the optical axis direction.

[0233] The AF carrier 1210 may include a groove 1211. The AF movement unit 1200 may include a groove 1211. The groove 1211 may be an "AF guide shaft accommodating groove." The shaft 1810 may be disposed in the groove 1211. The groove 1211 may be in direct contact with the shaft 1810. The groove 1211 may be disposed in the optical axis direction. The groove 1211 may include a plurality of grooves. The groove 1211 may include two grooves. The groove 1211 may be formed in a shape corresponding to a portion of the shaft 1810. The shaft 1810 may be fixed to the groove 1211.

[0234] The AF carrier 1210 may include a groove 1212. The AF movement unit 1200 may include a groove 1212. The groove 1212 may be an "AF magnet accommodating groove." The groove 1212 may be formed on the outer surface of the AF carrier 1210. An AF magnet 1510 may be disposed in the groove 1212. The groove 1212 may be formed in a shape corresponding to the AF magnet 1510.

[0235] The lens driving device 1010 may include an OIS-x moving unit 1300. The OIS-x moving unit 1300 may be arranged on the fixed unit 1100. The OIS-x moving unit 1300 may be arranged inside the fixed unit 1100. The OIS-x moving unit 1300 may be arranged on the fixed unit 1100. The OIS-x moving unit 1300 may be arranged below the OIS-y moving unit 1400. The OIS-x moving unit 1300 may be arranged between the fixed unit 1100 and the AF moving unit 1200. The OIS-x moving unit 1300 may be arranged between the fixed unit 1100 and the OIS-y moving unit 1400. The OIS-x moving unit 1300 may be arranged movably. The OIS-x moving unit 1300 may be moved in the x-axis direction relative to the fixed unit 1100 by an OIS-x driving unit (1600). The OIS-x movement unit 1300 may move when the OIS is driven. When the OIS-x movement unit 1300 moves in the x-axis direction, the OIS-y movement unit 1400 and the AF movement unit 1200 may also move together.

[0236] Lens driver 1010 may include an OIS-x carrier 1310. OIS-x movement unit 1300 may include an OIS-x carrier 1310. OIS-x carrier 1310 may be an "OIS-x holder." OIS-x carrier 1310 may be disposed within base 1110.

[0237] The OIS-x carrier 1310 may be disposed on the base 1110. The OIS-x carrier 1310 may be disposed below the OIS-y carrier 1410. The OIS-x carrier 1310 may be disposed within the cover 1120. The OIS-x carrier 1310 may be disposed between the base 1110 and the AF carrier 1210. The OIS-x carrier 1310 may be disposed between the base 1110 and the OIS-y carrier 1410. The OIS-x carrier 1310 may be disposed to be movable in the x-axis direction.

[0238] The OIS-x carrier 1310 may include a groove 1311. The OIS-x movement unit 1300 may include a groove 1311. The groove 1311 may be an "OIS-y guide ball accommodating groove." The groove 1311 may be formed in the lower plate 1313 of the OIS-x carrier 1310. The groove 1311 may be formed on the upper surface of the lower plate 1313 of the OIS-x carrier 1310. The OIS-y guide ball 1830 may be arranged in the groove 1311. The groove 1311 may be in direct contact with the OIS-y guide ball 1830. The groove 1311 may be arranged in the y-axis direction. The groove 1311 may include multiple grooves. The groove 1311 may include four grooves. The grooves 1311 may include a first groove that contacts the OIS-y guide ball 1830 at two points, and a second groove that contacts the OIS-y guide ball 1830 at one point. Alternatively, the first groove and the second groove may both contact the shaft 1810 at two points.

[0239] OIS-x carrier 1310 may include groove 1312. OIS-x movement unit 1300 may include groove 1312. Groove 1312 may be an "OIS-x guide ball receiving groove." Groove 1312 may be formed in side plate 1314 of OIS-x carrier 1310. Groove 1312 may be formed on the outer surface of side plate 1314 of OIS-x carrier 1310. OIS-x guide ball 1820 may be arranged in groove 1312. Groove 1312 may be in direct contact with OIS-x guide ball 1820. Groove 1312 may be arranged in the x-axis direction. Groove 1312 may include multiple grooves. Groove 1312 may include four grooves. The groove 1312 may include a first groove that contacts the OIS-x guide ball 1820 at two points, and a second groove that contacts the OIS-x guide ball 1820 at one point. Alternatively, the first groove and the second groove may both contact the OIS-x guide ball 1820 at two points.

[0240] The OIS-x carrier 1310 may include a bottom plate 1313. The bottom plate 1313 of the OIS-x carrier 1310 may be disposed between the base 1110 and the OIS-y carrier 1410 in the optical axis direction. The bottom plate 1313 may be disposed perpendicular to the optical axis.

[0241] The OIS-x carrier 1310 may include a side plate 1314. The side plate 1314 of the OIS-x carrier 1310 may be disposed between the base 1110 and the AF carrier 1210 in the y-axis direction. The side plate 1314 may be connected to the lower plate 1313. The side plate 1314 may be disposed parallel to the optical axis.

[0242] The OIS-x carrier 1310 may include a hole 1315. The hole 1315 may be an "OIS-x magnet accommodating hole." The hole 1315 may be formed in a side plate 1314 of the OIS-x carrier 1310. The hole 1315 may penetrate the OIS-x carrier 1310 in the y-axis direction. An OIS-x magnet 1610 may be disposed in the hole 1315. The hole 1315 may have a shape corresponding to the OIS-x magnet 1610.

[0243] The lens driving device 1010 may include an OIS-y mover 1400. The OIS-y mover 1400 may be disposed on the fixed unit 1100. The OIS-y mover 1400 may be disposed within the fixed unit 1100. The OIS-y mover 1400 may be disposed on the fixed unit 1100. The OIS-y mover 1400 may be disposed on the OIS-x mover 1300. The OIS-y mover 1400 may be disposed on the OIS-x mover 1300. The OIS-y mover 1400 may be disposed between the fixed unit 1100 and the AF mover 1200. The OIS-y mover 1400 may be disposed between the fixed unit 1100 and the AF mover 1200 in a direction perpendicular to the optical axis. The OIS-y mover 1400 may be disposed between the fixed unit 1100 and the AF mover 1200 in the x-axis direction. The OIS-y movement unit 1400 may be movably arranged on the fixed unit 1100. The OIS-y movement unit 1400 may be moved in the y-axis direction relative to the fixed unit 1100 by an OIS-y drive unit 1700. The OIS-y movement unit 1400 may move when the OIS is driven. When the OIS-y movement unit 1400 moves, the AF movement unit 1200 may also move.

[0244] The lens driving device 1010 may include an OIS-y carrier 1410. The OIS-y movement unit 1400 may include an OIS-y carrier 1410. The OIS-y carrier 1410 may be an "OIS-y holder." The OIS-y carrier 1410 may be disposed on the base 1110. The OIS-y carrier 1410 may be disposed within the base 1110. The OIS-y carrier 1410 may be disposed on the base 1110. The OIS-y carrier 1410 may be disposed within the cover 1120. The OIS-y carrier 1410 may be disposed on the OIS-x carrier 1310. The OIS-y carrier 1410 may be disposed on the OIS-x carrier 1310. The OIS-y carrier 1410 may be disposed between the base 1110 and the AF carrier 1210. The OIS-y carrier 1410 may be disposed between the base 1110 and the AF carrier 1210 in a direction perpendicular to the optical axis. The OIS-y carrier 1410 may be disposed between the side plate 1113 of the base 1110 and the AF carrier 1210 in the x-axis direction. The OIS-y carrier 1410 may be disposed so as to be movable in the y-axis direction.

[0245] The OIS-y carrier 1410 may be arranged on one side of the base 1110. The OIS-y carrier 1410 may be arranged on a side portion of the base 1110. The AF carrier 1210 may be housed in the OIS carriers 1310, 1410. The AF carrier 1210 may be housed in the OIS-x carrier 1310. The AF carrier 1210 may be housed in the OIS-y carrier 1410. One of the OIS carriers 1310, 1410 may be supported by the other OIS carrier. The other of the OIS carriers 1310, 1410 may be supported by a side wall of the base 1110. One of the OIS guide balls 1820, 1830 may be arranged on a side wall portion of the base 1110. However, the other may be arranged on the bottom side of the base 1110. In this case, the actual support may be located at the bottom of the OIS carrier, simply by placing it on the side towards the bottom of the base 1110.

[0246] The OIS-y carrier 1410 may include a groove 1411. The OIS-y movement unit 1400 may include a groove 1411. The groove 1411 may be an "AF guide shaft accommodating groove." The groove 1411 may be recessed into the OIS-y carrier 1410. The groove 1411 may be formed on the inner surface of the OIS-y carrier 1410. The shaft 1810 may be disposed in the groove 1411. The groove 1411 may be in direct contact with the shaft 1810. The groove 1411 may be disposed in the optical axis direction. The groove 1411 may include multiple grooves. The groove 1411 may include two grooves. The groove 1411 may include a first groove that contacts the shaft 1810 at two points and a second groove that contacts the shaft 1810 at one point. As a variation, both the first groove and the second groove may contact the shaft 1810 at two points. The shaft 1810 may move along the OIS-y carrier 1410 in the optical axis direction.

[0247] The OIS-y carrier 1410 may include a groove 1412. The OIS-y movement unit 1400 may include a groove 1412. The groove 1412 may be an "OIS-y guide ball receiving groove." The groove 1412 may be recessed into the OIS-y carrier 1410. The groove 1412 may be formed on the lower surface of the OIS-y carrier 1410. The OIS-y guide ball 1830 may be disposed in the groove 1412. The groove 1412 may be in direct contact with the OIS-y guide ball 1830. The groove 1412 may be disposed in the y-axis direction. The groove 1412 may include multiple grooves. The groove 1412 may include four grooves. The four grooves may be disposed parallel to one another. The grooves 1412 may include a first groove that contacts the OIS-y guide ball 1830 at two points, and a second groove that contacts the OIS-y guide ball 1830 at one point. Alternatively, the first groove and the second groove may both contact the OIS-y guide ball 1830 at two points.

[0248] The OIS-y carrier 1410 may include a groove 1413. The groove 1413 may be an "OIS-y magnet accommodating groove." The groove 1413 may be formed on the outer surface of the OIS-y carrier 1410. An OIS-y magnet 1710 may be disposed in the groove 1413. The groove 1413 may include a shape corresponding to the OIS-y magnet 1710.

[0249] The lens driving device 1010 may include a driving unit. The driving unit may move the moving unit relative to the fixed unit. The driving unit may include an AF driving unit 1500. The driving unit may include OIS driving units 1600 and 1700. The driving unit may include a coil and a magnet.

[0250] The lens driving device 1010 may include an AF driving unit 1500. The AF driving unit 1500 may move the AF movement unit 1200 in the optical axis direction. The AF driving unit 1500 may move the AF carrier 1210 in the optical axis direction. The AF driving unit 1500 may move the AF carrier 1210 in the optical axis direction using electromagnetic force. The AF driving unit 1500 may include a coil and a magnet. The AF driving unit 1500 may include a coil and a magnet that interact with each other. The AF coil 1520 and the AF magnet 1510 may move the AF movement unit 1200 in the optical axis direction.

[0251] When the OIS-x drive unit 1600 moves the OIS-x mover 1300, the OIS-y mover 1400, and the AF mover 1200, the distance between the mutually facing surfaces of the AF coil 1520 and the AF magnet 1510 may vary. When the OIS-y drive unit 1700 moves the OIS-y mover 1400 and the AF mover 1200, the distance between the mutually facing surfaces of the AF coil 1520 and the AF magnet 1510 does not vary, and the AF magnet 1510 may be eccentric with respect to the AF coil 1520.

[0252] The lens driving device 1010 may include an AF magnet 1510. The AF driving unit 1500 may include an AF magnet 1510. The AF magnet 1510 may be disposed in the AF movement unit 1200. The AF magnet 1510 may be disposed in the AF carrier 1210. The AF magnet 1510 may be disposed in a groove 1212 of the AF carrier 1210. The AF magnet 1510 may be disposed on an outer surface of the AF carrier 1210. The AF magnet 1510 may be fixed to the AF carrier 1210. The AF magnet 1510 may be coupled to the AF carrier 1210. The AF magnet 1510 may be adhered to the AF carrier 1210 with an adhesive. The AF magnet 1510 may be disposed within the cover 1120. The AF magnet 1510 may interact with an AF coil 1520. The AF magnet 1510 may electromagnetically interact with the AF coil 1520. The AF magnet 1510 may be disposed at a position corresponding to the AF coil 1520. The AF magnet 1510 may face the AF coil 1520. The AF magnet 1510 may face the AF coil 1520. The AF magnet 1510 may overlap with the AF coil 1520 in a direction perpendicular to the optical axis. The AF magnet 1510 may overlap with the AF coil 1520 in the x-axis direction. The AF magnet 1510 does not have to overlap with the OIS-x magnet 1610 in the y-axis and x-axis directions.

[0253] The AF magnet 1510 may be a four-pole magnet. The AF magnet 1510 may include a four-pole magnetized magnet. The AF magnet 1510 may include a first magnet portion including a north pole and a south pole and a second magnet portion including a south pole and a north pole. The first magnet portion and the second magnet portion may be arranged vertically. The first magnet portion and the second magnet portion may be arranged vertically and spaced apart, with a neutral portion disposed between the first magnet portion and the second magnet portion.

[0254] The AF magnet 1510 may overlap the OIS-y magnet 1710 in the y-axis direction. The OIS-y magnet 1710 may include a first unit magnet 1711 and a second unit magnet 1712 that are spaced apart from each other. The AF magnet 1510 may be disposed between the first unit magnet 1711 and the second unit magnet 1712 of the OIS-y magnet 1710. The AF magnet 1510 may be disposed between the first unit magnet 1711 and the second unit magnet 1712 in the y-axis direction. The AF magnet 1510 and the OIS-y magnet 1710 may be disposed on the same side. In this case, the AF magnet 1510 may overlap the OIS-y magnet 1710 in the y-axis direction. Alternatively, the AF magnet 1510 may not overlap the OIS-y magnet 1710 in the y-axis direction.

[0255] The lens driving device 1010 may include an AF coil 1520. The AF driving unit 1500 may include an AF coil 1520. The AF coil 1520 may interact with the AF magnet 1510. The AF coil 1520 may move the AF magnet 1510 in the optical axis direction. The AF coil 1520 may move the AF magnet 1510 in the optical axis direction through interaction with the AF magnet 1510. The AF coil 1520 may face the AF magnet 1510. The AF coil 1520 may be arranged at a position corresponding to the AF magnet 1510. The AF coil 1520 may overlap the AF magnet 1510 in the x-axis direction. The AF coil 1520 may be arranged on the substrate 1130. The AF coil 1520 may be arranged on the substrate 1130 at a position corresponding to the AF magnet 1510. The AF coil 1520 may be disposed on the base 1110. The AF coil 1520 may be disposed on a side plate 1122 of the cover 1120. The AF coil 1520 may be disposed between the AF magnet 1510 and the cover 1120. The AF coil 1520 may be disposed on the fixed part 1100.

[0256] The AF coil 1520 may be disposed on a first side plate of the cover 1120. The AF coil 1520 may be disposed on a first side plate of the base 1110. The AF coil 1520 may be disposed on a first portion of the substrate 1130. The OIS-y coil 1720 may be disposed on a first side plate of the cover 1120. The OIS-y coil 1720 may be disposed on a first side plate of the base 1110. The OIS-y coil 1720 may be disposed on a first portion of the substrate 1130.

[0257] The AF coil 1520 may overlap the OIS-y coil 1720 in the y-axis direction. The AF coil 1520 may be disposed between the first unit coil 1721 and the second unit coil 1722 of the OIS-y coil 1720. The AF coil 1520 may be disposed between the first unit coil 1721 and the second unit coil 1722 in the y-axis direction. The AF coil 1520 and the OIS-y coil 1720 may be disposed on the same side. In this case, the AF coil 1520 may overlap the OIS-y coil 1720 in the y-axis direction. Alternatively, the AF coil 1520 may not overlap the OIS-y coil 1720 in the y-axis direction.

[0258] At least one OIS drive coil and AF coil 1520 may be disposed on the same surface. At least one OIS drive coil and AF coil 1520 may be disposed on the same surface of substrate 1130. At least one OIS drive coil and AF coil 1520 may be disposed on the same surface of base 1110.

[0259] In a second embodiment of the present invention, as shown in FIG. 37(a), a large-aperture lens driver 1010 may have a horizontal width (see FIG. 37(g)) of 22 mm, a vertical width (see FIG. 37(h)) of 22 mm, and a hollow diameter (see FIG. 37(i)) of 17 mm when viewed from above. In this case, the horizontal width may be 20 to 24 mm, and the vertical width may be 20 to 24 mm. The hollow diameter may be 16 to 18 mm. In the second embodiment of the present invention, the large-aperture lens driver 1010 may have a space on one side where coils having two functions can be arranged together. In the second embodiment of the present invention, the AF coil 1520 and the OIS-y coil 1720 may be arranged together on one side of the moving part. As shown in FIG. 37(b), the height of the lens driver 1010 (see FIG. 37(j)) may be 5.7 mm. In this case, the height of the lens driver 1010 may be 5.2 to 6.2 mm.

[0260] The lens driving device 1010 may include an AF sensor 1530. The AF driving unit 1500 may include an AF sensor 1530. The AF sensor 1530 may be disposed on the substrate 1130. The AF sensor 1530 may include a Hall IC. The AF sensor 1530 may include a Hall sensor. The AF sensor 1530 can sense the AF magnet 1510. The AF sensor 1530 can sense the magnetic force of the AF magnet 1510. The AF sensor 1530 can sense the movement of the AF magnet 1510. The movement amount or position of the AF magnet 1510 sensed by the AF sensor 1530 can be used as feedback for autofocus (AF).

[0261] The AF sensor 1530 may be disposed within the AF coil 1520. The AF sensor 1530 may overlap with the AF coil 1520 in the optical axis direction. The AF sensor 1530 may overlap with the neutral portion of the AF magnet 1510 in the x-axis direction. As a modification, the AF sensor 1530 may be disposed outside the AF coil 1520. The AF sensor 1530 may face the AF magnet 1510. The AF sensor 1530 may be disposed at a position corresponding to the AF magnet 1510.

[0262] The AF sensor 1530 may include a drive IC. In this case, the drive IC may be electrically connected to the AF coil 1520. The drive IC can apply a current to the AF coil 1520.

[0263] The lens driving device 1010 may include a capacitor 1540. The capacitor 1540 may be disposed on the substrate 1130. The capacitor 1540 may be disposed adjacent to the AF sensor 1530. The capacitor 1540 may be disposed within the AF coil 1520. The capacitor 1540 can remove noise associated with the data and current transmitted and received by the AF sensor 1530.

[0264] The lens driving device 1010 may include an OIS-x driving unit 1600. The OIS-x driving unit 1600 may move the OIS-x moving unit 1300 in the x-axis direction, which is perpendicular to the optical axis direction and the y-axis direction. The OIS-x driving unit 1600 may move the OIS-x carrier 1310 in the x-axis direction. The OIS-x driving unit 1600 may move the OIS-x carrier 1310 in the x-axis direction using electromagnetic force. The OIS-x driving unit 1600 may include a coil and a magnet. The OIS-x coil 1620 and the OIS-x magnet 1610 may move the OIS-x moving unit 1300 in the x-axis direction, which is perpendicular to the optical axis direction and the y-axis direction.

[0265] When the OIS-x movement unit 1300 is moved by the OIS-x driving unit 1600, the AF movement unit 1200 and the OIS-y movement unit 1400 may move together with the OIS-x movement unit 1300. The AF movement unit 1200 and the OIS-y movement unit 1400 may move together with the OIS-x movement unit 1300 in the x-axis direction.

[0266] The lens driving device 1010 may include an OIS-x magnet 1610. The OIS-x driving unit 1600 may include an OIS-x magnet 1610. The OIS-x magnet 1610 may be disposed in the OIS-x moving unit 1300. The OIS-x magnet 1610 may be disposed in the OIS-x carrier 1310. The OIS-x magnet 1610 may be disposed in a hole 1315 in the OIS-x carrier 1310. The OIS-x magnet 1610 may be fixed to the OIS-x carrier 1310. The OIS-x magnet 1610 may be coupled to the OIS-x carrier 1310. The OIS-x magnet 1610 may be glued to the OIS-x carrier 1310 with an adhesive. The OIS-x magnet 1610 may be disposed within the cover 1120. The OIS-x magnet 1610 may interact with the OIS-x coil 1620. The OIS-x magnet 1610 may electromagnetically interact with the OIS-x coil 1620. The OIS-x magnet 1610 may be disposed at a position corresponding to the OIS-x coil 1620. The OIS-x magnet 1610 may face the OIS-x coil 1620. The OIS-x magnet 1610 may face the OIS-x coil 1620. The OIS-x magnet 1610 may overlap with the OIS-x coil 1620 in a direction perpendicular to the optical axis. The OIS-x magnet 1610 may overlap with the OIS-x coil 1620 in the y-axis direction.

[0267] The OIS-x magnet 1610 may be a four-pole magnet. The OIS-x magnet 1610 may include a four-pole magnetized magnet. The OIS-x magnet 1610 may include a first magnet portion including a north pole and a south pole, and a second magnet portion including a south pole and a north pole. The first magnet portion and the second magnet portion may be arranged in a horizontal direction. The first magnet portion and the second magnet portion may be arranged apart from each other in the horizontal direction, and a neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0268] In the second embodiment of the present invention, the distance between the OIS-x coil 1620 and the OIS-x magnet 1610 may be maintained constant even when the OIS-x magnet 1610 moves due to an interaction between the OIS-x coil 1620 and the OIS-x magnet 1610.

[0269] The lens driving device 1010 may include an OIS-x coil 1620. The OIS-x driving unit 1600 may include an OIS-x coil 1620. The OIS-x coil 1620 may interact with the OIS-x magnet 1610. The OIS-x coil 1620 may move the OIS-x magnet 1610 in the x-axis direction. The OIS-x coil 1620 may move the OIS-x magnet 1610 in the x-axis direction through its interaction with the OIS-x magnet 1610. The OIS-x coil 1620 may face the OIS-x magnet 1610. The OIS-x coil 1620 may be located at a position corresponding to the OIS-x magnet 1610. The OIS-x coil 1620 may overlap the OIS-x magnet 1610 in the y-axis direction. The OIS-x coil 1620 may be disposed on the substrate 1130. The OIS-x coil 1620 may be disposed on the substrate 1130 at a position corresponding to the OIS-x magnet 1610. The OIS-x coil 1620 may be disposed on the base 1110. The OIS-x coil 1620 may be disposed on the side plate 1122 of the cover 1120. The OIS-x coil 1620 may be disposed between the OIS-x magnet 1610 and the cover 1120. The OIS-x coil 1620 may be disposed on the fixed part 1100.

[0270] The lens driving device 1010 may include an OIS-x sensor 1630. The OIS-x driving unit 1600 may include an OIS-x sensor 1630. The OIS-x sensor 1630 may be disposed on the substrate 1130. The OIS-x sensor 1630 may include a Hall IC. The OIS-x sensor 1630 may include a Hall sensor. The OIS-x sensor 1630 can sense the OIS-x magnet 1610. The OIS-x sensor 1630 can sense the magnetic force of the OIS-x magnet 1610. The OIS-x sensor 1630 can sense the movement of the OIS-x magnet 1610. The movement amount or position of the OIS-x magnet 1610 sensed by the OIS-x sensor 1630 can be used as feedback for image stabilization driving (OIS) in the x-axis direction.

[0271] The OIS-x sensor 1630 may be disposed within the OIS-x coil 1620. The OIS-x sensor 1630 may overlap with the OIS-x coil 1620 in the optical axis direction. The OIS-x sensor 1630 may overlap with the neutral portion of the OIS-x magnet 1610 in the y-axis direction. As a variant, the OIS-x sensor 1630 may be disposed outside the OIS-x coil 1620. The OIS-x sensor 1630 may face the OIS-x magnet 1610. The OIS-x sensor 1630 may be disposed at a position corresponding to the OIS-x magnet 1610.

[0272] The lens driving device 1010 may include an OIS-y driving unit 1700. The OIS-y driving unit 1700 may move the OIS-y moving unit 1400 in the y-axis direction perpendicular to the optical axis direction. The OIS-y driving unit 1700 may move the OIS-y carrier 1410 in the y-axis direction. The OIS-y driving unit 1700 may move the OIS-y carrier 1410 in the y-axis direction via electromagnetic force. The OIS-y driving unit 1700 may include a coil and a magnet. The OIS-y coil 1720 and the OIS-y magnet 1710 may move the OIS-y moving unit 1400 in the y-axis direction perpendicular to the optical axis direction.

[0273] When the OIS-y movement section 1400 is moved by the OIS-y driving section 1700, the AF movement section 1200 may move together with the OIS-y movement section 1400. The AF movement section 1200 may move together with the OIS-y movement section 1400 in the y-axis direction.

[0274] The lens driving device 1010 may include an OIS-y magnet 1710. The OIS-y driving unit 1700 may include an OIS-y magnet 1710. The OIS-y magnet 1710 may be disposed on the OIS-y movement unit 1400. The OIS-y magnet 1710 may be fixed to the OIS-y movement unit 1400. The OIS-y magnet 1710 may be coupled to the OIS-y movement unit 1400. The OIS-y magnet 1710 may be adhered to the OIS-y movement unit 1400 with an adhesive. The OIS-y magnet 1710 may be disposed on the OIS-y carrier 1410. The OIS-y magnet 1710 may be disposed in a groove 1413 of the OIS-y carrier 1410. The OIS-y magnet 1710 may be disposed on the outer surface of the OIS-y carrier 1410. The OIS-y magnet 1710 may be fixed to the OIS-y carrier 1410. The OIS-y magnet 1710 may be coupled to the OIS-y carrier 1410. The OIS-y magnet 1710 may be glued to the OIS-y carrier 1410. The OIS-y magnet 1710 may be disposed within the cover 1120. The OIS-y magnet 1710 may interact with the OIS-y coil 1720. The OIS-y magnet 1710 may electromagnetically interact with the OIS-y coil 1720. The OIS-y magnet 1710 may be disposed at a position corresponding to the OIS-y coil 1720. The OIS-y magnet 1710 may face the OIS-y coil 1720. The OIS-y magnet 1710 may face the OIS-y coil 1720. The OIS-y magnet 1710 may overlap with the OIS-y coil 1720 in a direction perpendicular to the optical axis. The OIS-y magnet 1710 may overlap with the OIS-x magnet 1610 in the x-axis direction.

[0275] The OIS-y magnet 1710 may be a four-pole magnet. The OIS-y magnet 1710 may include a four-pole magnetized magnet. The OIS-y magnet 1710 may include a first magnet portion including a north pole and a south pole, and a second magnet portion including a south pole and a north pole. The first magnet portion and the second magnet portion may be arranged in a horizontal direction. The first magnet portion and the second magnet portion may be arranged apart from each other in the horizontal direction, and a neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0276] The OIS-y magnet 1710 may include multiple magnets. The OIS-y magnet 1710 may include two magnets. The OIS-y magnet 1710 may include a first unit magnet 1711 and a second unit magnet 1712. The first unit magnet 1711 and the second unit magnet 1712 may be formed to have the same size and shape. The first unit magnet 1711 and the second unit magnet 1712 may be arranged on both sides of the AF magnet 1510. As a modified example, either the first unit magnet 1711 or the second unit magnet 1712 may be omitted. That is, the OIS-y magnet 1710 may be formed only with the first unit magnet 1711. Or, the OIS-y magnet 1710 may be formed only with the second unit magnet 1712.

[0277] First unit magnet 1711 and second unit magnet 1712 may be arranged so that the surfaces facing AF magnet 1510 have the same polarity. That is, first unit magnet 1711 may include a first surface facing AF magnet 1510, with the outside of the first surface having a south pole and the inside having a north pole. Second unit magnet 1712 may include a second surface facing AF magnet 1510, with the outside of the second surface having a south pole and the inside having a north pole.

[0278] In the second embodiment of the present invention, even when the OIS-y magnet 1710 moves due to an interaction between the OIS-y coil 1720 and the OIS-y magnet 1710, the distance between the OIS-y coil 1720 and the OIS-y magnet 1710 may be maintained constant.

[0279] The lens driving device 1010 may include an OIS-y coil 1720. The OIS-y driving unit 1700 may include an OIS-y coil 1720. The OIS-y coil 1720 may interact with the OIS-y magnet 1710. The OIS-y coil 1720 may move the OIS-y magnet 1710 in the y-axis direction. The OIS-y coil 1720 may move the OIS-y magnet 1710 in the y-axis direction through its interaction with the OIS-y magnet 1710. The OIS-y coil 1720 may face the OIS-y magnet 1710. The OIS-y coil 1720 may be positioned corresponding to the OIS-y magnet 1710. The OIS-y coil 1720 may overlap the OIS-y magnet 1710 in the x-axis direction. The OIS-y coil 1720 may be disposed on the substrate 1130. The OIS-y coil 1720 may be disposed on the substrate 1130 at a position corresponding to the OIS-y magnet 1710. The OIS-y coil 1720 may be disposed on the base 1110. The OIS-y coil 1720 may be disposed on the side plate 1122 of the cover 1120. The OIS-y coil 1720 may be disposed between the OIS-y magnet 1710 and the cover 1120. The OIS-y coil 1720 may be disposed on the fixed part 1100.

[0280] The OIS-y coil 1720 may include multiple coils. The OIS-y coil 1720 may include two coils. The OIS-y coil 1720 may include a first unit coil 1721 and a second unit coil 1722. The first unit coil 1721 and the second unit coil 1722 may be formed to have the same size and shape. The first unit coil 1721 and the second unit coil 1722 may be disposed on both sides of the AF coil 1520. As a modified example, either the first unit coil 1721 or the second unit coil 1722 may be omitted. That is, the OIS-y coil 1720 may be formed only with the first unit coil 1721. Or, the OIS-y coil 1720 may be formed only with the second unit coil 1722.

[0281] The lens driving device 1010 may include an OIS-y sensor 1730. The OIS-y driving unit 1700 may include an OIS-y sensor 1730. The OIS-y sensor 1730 may be disposed on the substrate 1130. The OIS-y sensor 1730 may include a Hall element (Hall IC). The OIS-y sensor 1730 may include a Hall sensor. The OIS-y sensor 1730 can sense the OIS-y magnet 1710. The OIS-y sensor 1730 can sense the magnetic force of the OIS-y magnet 1710. The OIS-y sensor 1730 can sense the movement of the OIS-y magnet 1710. The movement amount or position of the OIS-y magnet 1710 sensed by the OIS-y sensor 1730 can be used as feedback for image stabilization drive (OIS) in the y-axis direction.

[0282] The OIS-y sensor 1730 may be disposed within the OIS-y coil 1720. The OIS-y sensor 1730 may overlap with the OIS-y coil 1720 in the optical axis direction. The OIS-y sensor 1730 may overlap with the neutral portion of the OIS-y magnet 1710 in the x-axis direction. As a variation, the OIS-y sensor 1730 may be disposed outside the OIS-y coil 1720. The OIS-y sensor 1730 may face the OIS-y magnet 1710. The OIS-y sensor 1730 may be disposed at a position corresponding to the OIS-y magnet 1710.

[0283] The lens driving device 1010 may include a guide member. The guide member may include a ball. The guide member may include a pin. The guide member may include a cylindrical member. The guide member can guide the movement of the movable part relative to the fixed part 1100 in a specific direction.

[0284] The lens driver 1010 may include a shaft 1810. The shaft 1810 may be an "AF guide shaft."

[0285] The shaft 1810 can guide the movement of the AF mover 1200 in the optical axis direction. The shaft 1810 can guide the movement of the AF carrier 1210 relative to the OIS-y carrier 1410 in the optical axis direction. The shaft 1810 may be disposed between the AF mover 1200 and the OIS-y mover 1400. The AF mover 1200 and the OIS-y mover 1400 may include grooves 1211, 1411 extending in the optical axis direction. The shaft 1810 may be disposed between the groove 1211 of the AF mover 1200 and the groove 1411 of the OIS-y mover 1400. The shaft 1810 may be disposed between the OIS-y carrier 1410 and the AF carrier 1210. The shaft 1810 may be disposed between the OIS-y carrier 1410 and the AF carrier 1210 in the x-axis direction. The shaft 1810 may be disposed between the inner surface of the OIS-y carrier 1410 and the outer surface of the AF carrier 1210.

[0286] The shaft 1810 may be fixed to the AF movement unit 1200. The shaft 1810 may be bonded to the AF movement unit 1200. The shaft 1810 may be formed integrally with the AF movement unit 1200. The shaft 1810 may be formed integrally with the AF movement unit 1200 via insert injection molding. The shaft 1810 may be fixed to the AF carrier 1210. The shaft 1810 may be bonded to the AF carrier 1210. The shaft 1810 may be formed integrally with the AF carrier 1210 via insert injection molding. Due to the attractive force between the shaft 1810 and the OIS-y magnet 1710, the shaft 1810 and the AF movement unit 1200 may be pressed toward the OIS-y magnet 1710. The central axis of the shaft 1810 may be arranged parallel to the optical axis. The shaft 1810 can guide the AF movement unit 1200 so that it moves in the optical axis direction relative to the OIS-y movement unit 1400. The shaft 1810 can guide the AF carrier 1210 so that it moves in the optical axis direction relative to the OIS-y carrier 1410.

[0287] OIS-y magnet 1710 may include an inner surface facing shaft 1810. At least a portion of shaft 1810 may overlap a neutral portion of OIS-y magnet 1710 in a direction perpendicular to the inner surface of OIS-y magnet 1710. Conversely, the neutral portion of OIS-y magnet 1710 may overlap shaft 1810 in a direction perpendicular to the inner surface of OIS-y magnet 1710.

[0288] The upper surface of the shaft 1810 may be positioned lower than the upper surface of the OIS-y magnet 1710. The upper surface of the shaft 1810 may be positioned at the same height as the upper surface of the OIS-y magnet 1710. The upper surface of the shaft 1810 may be positioned higher than the upper surface of the OIS-y magnet 1710. In the initial position where no current is applied to the AF coil 1520, the center of the shaft 1810 in the optical axis direction may be positioned at the same height as the center of the OIS-y magnet 1710 in the optical axis direction. In the initial position where no current is applied to the AF coil 1520, the center of the shaft 1810 in the optical axis direction may be positioned higher than the center of the OIS-y magnet 1710 in the optical axis direction. In the initial position where no current is applied to the AF coil 1520, the center of the shaft 1810 in the optical axis direction may be positioned lower than the center of the OIS-y magnet 1710 in the optical axis direction.

[0289] The shaft 1810 may be disposed between the groove 1411 of the OIS-y movement unit 1400 and the groove 1211 of the AF movement unit 1200. At least one of the groove 1411 of the OIS-y movement unit 1400 and the groove 1211 of the AF movement unit 1200 may extend longer in the optical axis direction than the diameter of the shaft 1810. The shaft 1810 may be disposed in the groove 1411 of the OIS-y carrier 1410. In this case, the shaft 1810 may be fixed to the AF movement unit 1200. The length of the groove 1411 of the OIS-y movement unit 1400 in the optical axis direction may be longer than the length of the shaft 1810. The length of the groove 1411 of the OIS-y movement unit 1400 in the optical axis direction may be the same as or longer than the length of the AF up / down stroke. When the AF movement unit 1200 moves upward to its maximum extent, the upper end of the groove 1411 of the OIS-y movement unit 1400 may be positioned higher than the upper end of the shaft 1810. When the AF movement unit 1200 moves downward to its maximum extent, the lower end of the groove 1411 of the OIS-y movement unit 1400 may be positioned lower than the lower end of the shaft 1810. The shaft 1810 may be positioned in the groove 1211 of the AF carrier 1210. The shaft 1810 may have a cylindrical shape. The shaft 1810 may have a columnar shape. Grease may be applied to the surface of the shaft 1810.

[0290] The shaft 1810 may be made of metal. The shaft 1810 may be magnetic. An attractive force may act between the shaft 1810 and the OIS-y magnet 1710. An attractive force may act between the shaft 1810 and the drive magnet. This has the advantage that a separate attractive member for applying pressure to the shaft 1810 is not required.

[0291] The shaft 1810 may include multiple shafts. The shaft 1810 may include two shafts. One of the two shafts 1810 may be disposed on one side of the AF magnet 1510, and the other may be disposed on the other side of the AF magnet 1510. The shaft 1810 may include a first shaft and a second shaft. The AF magnet 1510 may not overlap the first shaft and the second shaft in the direction from the first shaft toward the second shaft. The AF magnet 1510 may not overlap the shafts in the y-axis direction. As a variant, the AF magnet 1510 may partially overlap the first shaft and the second shaft in the direction from the first shaft toward the second shaft.

[0292] The distance between the upper surface of shaft 1810 and the lower surface of shaft 1810 may be 40 to 60% of the overall height of lens driving device 1010. The length of shaft 1810 in the optical axis direction may be 40 to 60% of the overall height of lens driving device 1010. In this case, the overall height of lens driving device 1010 may be the distance from the lower surface of base 1110 to the upper surface of cover 1120.

[0293] The lens driving device 1010 may include an OIS-x guide ball 1820. The OIS-x guide ball 1820 can guide movement of the OIS-x carrier 1310 relative to the base 1110 in the x-axis direction. The OIS-x guide ball 1820 may be arranged between the OIS-x moving unit 1300 and the fixed unit 1100. The OIS-x moving unit 1300 and the fixed unit 1100 may include grooves 1111, 1312 extending in the x-axis direction. The OIS-x guide ball 1820 may be arranged between the groove 1312 of the OIS-x moving unit 1300 and the groove 1111 of the fixed unit 1100. The OIS-x guide ball 1820 may be arranged between the base 1110 and the OIS-x carrier 1310. The OIS-x guide ball 1820 may be arranged between the base 1110 and the OIS-x carrier 1310 in the y-axis direction. The entire area of ​​the OIS-x guide ball 1820 from its lower end to its upper end may overlap with the base 1110 and the OIS-x carrier 1310 in the y-axis direction. The entire area of ​​the OIS-x guide ball 1820 may overlap with the base 1110 and the OIS-x carrier 1310 in the y-axis direction. The OIS-x guide ball 1820 may be disposed between the side plate 1113 of the base 1110 and the side plate 1314 of the OIS-x carrier 1310. The OIS-x guide ball 1820 may be disposed between the inner surface of the side plate 1113 of the base 1110 and the outer surface of the side plate 1314 of the OIS-x carrier 1310. When viewed from the outside of the OIS-x carrier 1310, the OIS-x guide ball 1820 may overlap with the OIS-x magnet 1610 in the horizontal direction. At least a portion of the OIS-x guide ball 1820 may overlap the OIS-x magnet 1610 in the x-axis direction.

[0294] The OIS-x guide ball 1820 may be disposed between the groove 1111 of the base 1110 and the groove 1312 of the OIS-x movement section 1300. At least one of the groove 1111 of the base 1110 and the groove 1312 of the OIS-x movement section 1300 may extend longer in the x-axis direction than the diameter of the OIS-x guide ball 1820.

[0295] The OIS-x guide balls 1820 may be disposed in grooves 1111 of the base 1110. The OIS-x guide balls 1820 may be disposed in grooves 1312 of the OIS-x carrier 1310. The OIS-x guide balls 1820 may include a first ball 1-1 that contacts the base 1110 and the OIS-x carrier 1310 at four points and a first ball 1-2 that contacts the base 1110 and the OIS-x carrier 1310 at three points. The OIS-x guide balls 1820 may be spherical. The OIS-x guide balls 1820 may be made of metal. Grease may be applied to the surfaces of the OIS-x guide balls 1820.

[0296] The OIS-x guide balls 1820 may include multiple balls. The OIS-x guide balls 1820 may include four balls. Two OIS-x guide balls 1820 may be arranged on one side of the OIS-x magnet 1610, and the remaining two OIS-x guide balls 1820 may be arranged on the other side of the OIS-x magnet 1610.

[0297] The lens driving device 1010 may include an OIS-y guide ball 1830. The OIS-y guide ball 1830 can guide the movement of the OIS-y carrier 1410 relative to the OIS-x carrier 1310 in the y-axis direction. The OIS-y guide ball 1830 may be disposed between the OIS-y movement unit 1400 and the OIS-x carrier 1310. The OIS-y guide ball 1830 may be disposed between the OIS-y movement unit 1400 and the OIS-x carrier 1310 in the optical axis direction. The OIS-y movement unit 1400 and the OIS-x movement unit 1300 may include grooves 1311, 1412 extending in the y-axis direction. The OIS-y guide ball 1830 may be disposed between the groove 1412 of the OIS-y movement unit 1400 and the groove 1311 of the OIS-x movement unit 1300. The OIS-y guide ball 1830 may be disposed between the OIS-x carrier 1310 and the OIS-y carrier 1410. The OIS-y guide ball 1830 may be disposed between the base 1110 and the OIS-y carrier 1410 in the optical axis direction. The OIS-y guide ball 1830 may be disposed in the groove 1311 of the OIS-x carrier 1310. The OIS-y guide ball 1830 may be disposed between the lower plate 1313 of the OIS-x carrier 1310 and the OIS-y carrier 1410. The OIS-y guide ball 1830 may be disposed between the upper surface of the lower plate 1313 of the OIS-x carrier 1310 and the lower surface of the OIS-y carrier 1410.

[0298] The OIS-y guide ball 1830 may be disposed between the groove 1311 of the OIS-x movement unit 1300 and the groove 1412 of the OIS-y movement unit 1400. At least one of the groove 1311 of the OIS-x movement unit 1300 and the groove 1412 of the OIS-y movement unit 1400 may extend in the y-axis direction longer than the diameter of the OIS-y guide ball 1830.

[0299] The OIS-y guide balls 1830 may be disposed in grooves 1311 of the OIS-x carrier 1310. The OIS-y guide balls 1830 may be disposed in grooves 1412 of the OIS-y carrier 1410. The OIS-y guide balls 1830 may include a first-1 ball that contacts the OIS-x carrier 1310 and the OIS-y carrier 1410 at four points and a first-2 ball that contacts the OIS-x carrier 1310 and the OIS-y carrier 1410 at three points. The OIS-y guide balls 1830 may be spherical. The OIS-y guide balls 1830 may be made of metal. Grease may be applied to the surfaces of the OIS-y guide balls 1830.

[0300] The OIS-y guide balls 1830 may include multiple balls. The OIS-y guide balls 1830 may include four balls. Two OIS-y guide balls 1830 may be arranged on one side of the AF magnet 1510, and the remaining two OIS-y guide balls 1830 may be arranged on the other side of the AF magnet 1510.

[0301] The lens driving device 1010 may include a ball pressing member. The ball pressing 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 1610 and 1710. The attractive force between the yoke and the magnets 1610 and 1710 may pressurize the balls 1820 and 1830. In the second embodiment of the present invention, an attractive yoke for the AF guide member may be omitted due to the attractive force between the shaft 1810 and the driving magnet.

[0302] The yoke may include multiple yokes. The yoke may include three yokes. The yoke may include an OIS-x gravitational force yoke 1920 and an OIS-y gravitational force yoke 1930. The OIS-x gravitational force yoke 1920 and the OIS-y gravitational force yoke 1930 may be spaced apart from each other.

[0303] The lens driving device 1010 may include an OIS-x gravitational force yoke 1920. The OIS-x gravitational force yoke 1920 may be disposed on the fixed portion 1100. The OIS-x gravitational force yoke 1920 may be disposed on the base 1110. The OIS-x gravitational force yoke 1920 may be coupled to the base 1110. The OIS-x gravitational force yoke 1920 may be fixed to the base 1110. The OIS-x gravitational force yoke 1920 may be adhesively bonded to the base 1110. The OIS-x gravitational force yoke 1920 may be disposed on the substrate 1130. The OIS-x gravitational force yoke 1920 may be coupled to the substrate 1130. The OIS-x gravitational force yoke 1920 may be fixed to the substrate 1130. The OIS-x gravitational force yoke 1920 may be adhesively bonded to the substrate 1130. The OIS-x gravity yoke 1920 may be disposed between the base 1110 and the substrate 1130. The OIS-x gravity yoke 1920 may be disposed in the groove 1114 of the base 1110.

[0304] The OIS-x attractive force yoke 1920 may be disposed at a position corresponding to the OIS-x magnet 1610. An attractive force may act between the OIS-x attractive force yoke 1920 and the OIS-x magnet 1610. An attractive force may be generated between the OIS-x attractive force yoke 1920 and the OIS-x magnet 1610. The attractive force between the OIS-x attractive force yoke 1920 and the OIS-x magnet 1610 may pressurize the OIS-x guide ball 1820. The attractive force between the OIS-x attractive force yoke 1920 and the OIS-x magnet 1610 may pressurize the OIS-x guide ball 1820 between the OIS-x carrier 1310 and the base 1110.

[0305] The OIS-x gravitational force yoke 1920 may include a hole in which the OIS-x coil 1620 may be disposed.

[0306] The lens driving device 1010 may include an OIS-y attractive force yoke 1930. The OIS-y attractive force yoke 1930 may be disposed in the OIS-x moving unit 1300. The OIS-y attractive force yoke 1930 may be disposed in the OIS-x carrier 1310. The OIS-y attractive force yoke 1930 may be coupled to the OIS-x carrier 1310. The OIS-y attractive force yoke 1930 may be fixed to the OIS-x carrier 1310. The OIS-y attractive force yoke 1930 may be glued to the OIS-x carrier 1310 with an adhesive. The OIS-y attractive force yoke 1930 may be disposed on the lower plate 1313 of the OIS-x carrier 1310. The OIS-y attractive force yoke 1930 may be disposed on the upper surface of the lower plate 1313 of the OIS-x carrier 1310. The OIS-y attractive force yoke 1930 may be disposed at a position corresponding to the OIS-y magnet 1710. The OIS-y attractive force yoke 1930 may exert an attractive force on the OIS-y magnet 1710. An attractive force may be generated between the OIS-y attractive force yoke 1930 and the OIS-y magnet 1710. The attractive force between the OIS-y attractive force yoke 1930 and the OIS-y magnet 1710 may pressurize the OIS-y guide ball 1830. The attractive force between the OIS-y attractive force yoke 1930 and the OIS-y magnet 1710 may pressurize the OIS-y guide ball 1830 between the OIS-y carrier 1410 and the OIS-x carrier 1310.

[0307] The OIS-y attraction yoke 1930 may be formed in a "C" shape. The OIS-y attraction yoke 1930 may be formed in a "U" shape. The OIS-y attraction yoke 1930 may include a first yoke portion and a second yoke portion arranged parallel to each other, and a third yoke portion connecting the first yoke portion and the second yoke portion. The OIS-y attraction yoke 1930 may be formed in a shape that is bent twice.

[0308] The second embodiment of the present invention may include a structure in which the OIS carrier is disposed on a side portion of the base 1110. The AF carrier 1210 may be housed in the OIS carrier. One of the OIS carriers may be supported on a side wall of the base 1110. The remaining one may be supported by another OIS carrier rather than on a side wall of the base 1110. One of the OIS guide balls may be disposed on a side wall of the base 1110, while the remaining one may be disposed on the bottom of the base 1110. While the ball may be positioned toward the bottom of the base 1110, its actual support may be toward the bottom of the OIS carrier. At least one OIS driving coil and one AF driving coil may be disposed on the same surface. In this case, the OIS driving coil disposed on the same surface may be divided into two, or may be formed as a single coil. The OIS-y attractive yoke 1930 may be disposed toward the bottom of the OIS-x carrier 1310. The OIS-y guide ball 1830 may be disposed toward the bottom of the base 1110. The OIS-y magnet 1710 may have a structure, such as a C-cut, for transmitting magnetic force toward the OIS-y attractive yoke 1930 to achieve a greater attractive force with the OIS-y attractive yoke 1930. The OIS-x attractive yoke 1920 may be present on a side wall of the base 1110. The OIS-x attractive yoke 1920 may have a hole shape of a certain size, and the OIS-x coil 1620 may be disposed between the hole and the OIS-x attractive yoke 1920. However, as a variant, the hole shape may be omitted from the OIS-x attractive yoke 1920. Applying the hole allows the size to be reduced by the thickness of the OIS-x attractive yoke 1920.

[0309] The attractive force between the shaft 1810 and the OIS-y magnet 1710 may pressurize the AF movement section 1200 toward the OIS-y movement section 1400 .

[0310] The shaft 1810 may be fixed to one of the AF mover unit 1200 and the OIS-y mover unit 1400, and the shaft 1810 may be pressed against the other of the AF mover unit 1200 and the OIS-y mover unit 1400 due to the attractive force between the shaft 1810 and the OIS-y magnet 1710. Although the shaft 1810 has been described as being separate from the AF mover unit 1200 and the OIS-y mover unit 1400, as a modified example, the AF mover unit 1200 may include the shaft 1810. Alternatively, the OIS-y mover unit 1400 may include the shaft 1810. In this case, the AF mover unit 1200 and the OIS-y mover unit 1400 may be in contact with or in close contact with each other.

[0311] The AF moving unit 1200 includes a first side surface facing the AF coil 1520, and the first side surface of the AF moving unit 1200 may include a first area, a second area recessed inward from the first area, and a third area recessed inward from the second area. The AF magnet 1510 may be disposed in a groove 1212 formed in the first area. The shaft 1810 may be disposed in a groove 1211 formed in the third area.

[0312] The OIS-y moving unit 1400 may include a first surface on which a first guide portion that guides the AF moving unit 1200 to move in a first direction is formed, and a second surface on which a groove 1411 in which the shaft 1810 is disposed is formed. In this case, the first direction may be the y-axis direction. The first guide portion may be a groove 1412. The first surface may be a bottom surface. The second surface may be an inner surface.

[0313] The lens driving device 1010 may include a first valve disposed between the lower surface of the OIS-y moving unit 1400 and the upper surface of the OIS-x moving unit 1300. In this case, the first ball portion may be an OIS-y guide ball 1830. The lens driving device 1010 may include a second valve disposed between the OIS-x moving unit 1300 and a side plate of the fixed unit 1100. In this case, the second ball portion may be an OIS-x guide ball 1820.

[0314] The assembly process of the lens driving device according to the second embodiment of the present invention will be described below with reference to the drawings.

[0315] FIG. 55 is a diagram illustrating a process of coupling an AF magnet and a shaft to an AF carrier to form an AF carrier assembly. FIG. 56 is a diagram illustrating a process of coupling an OIS-y magnet to an OIS-y carrier to form an OIS-y carrier assembly. FIG. 57 is a diagram illustrating a process of coupling an OIS-x magnet and an OIS-y attractive yoke to an OIS-x carrier to form an OIS-x carrier assembly. FIG. 58 is a diagram illustrating a process of coupling an OIS-x attractive yoke and a substrate assembly to a base. In this case, the substrate assembly may include a substrate, and a coil and a sensor coupled to the substrate. FIG. 59 is a diagram illustrating a process of coupling an OIS-x guide ball and an OIS-x carrier assembly in the final state of FIG. 58. FIG. 60 is a diagram illustrating a process of coupling an OIS-y guide ball and an OIS-y carrier assembly in the final state of FIG. 59. FIG. 61 is a diagram illustrating the process in which the AF carrier assembly and the cover are combined and assembled into the lens driving device in the final state of FIG.

[0316] As shown in FIG. 55, an AF magnet 1510 may be disposed in the groove 1212 of the AF carrier 1210, and a shaft 1810 may be disposed in the groove 1211 of the AF carrier 1210 to form an AF carrier assembly. As shown in FIG. 56, an OIS-y magnet 1710 may be disposed in the groove 1413 of the OIS-y carrier 1410 to form an OIS-y carrier assembly. As shown in FIG. 57, an OIS-x magnet 1610 may be disposed in the hole 1315 of the OIS-x carrier 1310, and an OIS-y attractive yoke 1930 may be disposed on the lower plate 1313 of the OIS-x carrier 1310 to form an OIS-x carrier assembly. As shown in FIG. 58, an OIS-x attractive yoke 1920 and a substrate assembly may be disposed on the base 1110. At this time, the substrate assembly may include substrate 1130, and coils 1520, 1620, 1720 and sensors 1530, 1630, 1730 coupled to the substrate. Thereafter, as shown in Figure 59, the OIS-x guide ball 1820 and the OIS-x carrier assembly may be arranged in the final state of Figure 58. Thereafter, as shown in Figure 60, the OIS-y guide ball 1830 and the OIS-y carrier assembly may be arranged in the final state of Figure 59. Thereafter, as shown in Figure 61, the AF carrier assembly may be arranged in the final state of Figure 60, and the cover 1120 may be coupled.

[0317] Hereinafter, autofocus (AF) driving of a lens driving device according to a second embodiment of the present invention will be described with reference to the drawings.

[0318] Figures 62 to 64 are diagrams illustrating autofocus driving of a lens driving device according to a second embodiment of the present invention. Figure 62 is a cross-sectional view illustrating the state of the AF moving unit in the initial state when no current is applied to the AF coil. Figure 63 is a cross-sectional view illustrating the state when a forward current is applied to the AF coil and the AF moving unit has moved upward in the optical axis direction. Figure 64 is a cross-sectional view illustrating the state when a reverse current is applied to the AF coil and the AF moving unit has moved downward in the optical axis direction.

[0319] The moving part may be disposed at a position separated from both the upper plate 1121 of the cover 1120 and the base 1110 in an initial position where no current is applied to the AF coil 1520. In this case, the moving part may be the AF moving part 1200.

[0320] When a forward current is applied to the AF coil 1520, the AF magnet 1510 can move upward in the optical axis direction due to electromagnetic interaction between the AF coil 1520 and the AF magnet 1510 (see A in FIG. 63). At this time, the AF carrier 1210 may move upward in the optical axis direction together with the AF magnet 1510. Furthermore, the lens may move upward in the optical axis direction together with the AF carrier 1210. Accordingly, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor via the lens may be adjusted.

[0321] When a reverse current is applied to the AF coil 1520, the AF magnet 1510 can move downward in the optical axis direction due to electromagnetic interaction between the AF coil 1520 and the AF magnet 1510 (see B in FIG. 64). At this time, the AF carrier 1210 may move downward in the optical axis direction together with the AF magnet 1510. Furthermore, the lens may move downward in the optical axis direction together with the AF carrier 1210. As a result, the distance between the lens and the image sensor changes, and the focus of the image formed on the image sensor via the lens may be adjusted.

[0322] Meanwhile, during the movement of the AF magnet 1510, the AF sensor 1530 can sense the strength of the magnetic field of the AF magnet 1510 and detect the amount of movement and position of the AF magnet 1510. The amount of movement and position of the AF magnet 1510 sensed by the AF sensor 1530 can be used for autofocus feedback control.

[0323] Hereinafter, optical image stabilization (OIS) driving of a lens driving device according to a second embodiment of the present invention will be described with reference to the drawings.

[0324] Fig. 65 to Fig. 67 are diagrams illustrating the image stabilization drive of a lens driving device according to a second embodiment of the present invention. Fig. 65 is a cross-sectional view illustrating the state of the moving unit in the initial state when no current is applied to the OIS-y coil and the OIS-x coil. Fig. 66 is a cross-sectional view illustrating the state when a current is applied to the OIS-x coil, causing the OIS-x moving unit, the OIS-y moving unit, and the AF moving unit to move in the x-axis direction perpendicular to the optical axis. Fig. 67 is a cross-sectional view illustrating the state when a current is applied to the OIS-y coil, causing the OIS-y moving unit and the AF moving unit to move in the y-axis direction perpendicular to the optical axis.

[0325] 65 , the moving section may be placed in an initial position where no current is applied to the OIS-x coil 1620 and the OIS-y coil 1720. At this time, the moving section may be the OIS-x moving section 1300 and the OIS-y moving section 1400. Alternatively, the moving section may include the AF moving section 1200, the OIS-x moving section 1300, and the OIS-y moving section 1400.

[0326] When a current is applied to the OIS-x coil 1620, electromagnetic interaction between the OIS-x coil 1620 and the OIS-x magnet 1610 causes the OIS-x magnet 1610 to move in the x-axis direction, which is perpendicular to the optical axis (see A in FIG. 66 ). At this time, the OIS-x carrier 1310 may move in the x-axis direction together with the OIS-x magnet 1610. Furthermore, the OIS-y carrier 1410, AF carrier 1210, and lens may move in the x-axis direction together with the OIS-x carrier 1310. More specifically, when a positive current is applied to the OIS-x coil 1620, the OIS-x magnet 1610, OIS-x carrier 1310, OIS-y carrier 1410, AF carrier 1210, and lens may move in one direction on the x-axis. Furthermore, when a reverse current is applied to the OIS-x coil 1620, the OIS-x magnet 1610, the OIS-x carrier 1310, the OIS-y carrier 1410, the AF carrier 1210, and the lens may move in the other direction on the x-axis.

[0327] When a current is applied to the OIS-y coil 1720, electromagnetic interaction between the OIS-y coil 1720 and the OIS-y magnet 1710 causes the OIS-y magnet 1710 to move in the y-axis direction, which is perpendicular to the optical axis (see B in FIG. 67 ). At this time, the OIS-y carrier 1410 may move in the y-axis direction together with the OIS-y magnet 1710. Furthermore, the AF carrier 1210 and the lens may move in the y-axis direction together with the OIS-y carrier 1410. More specifically, when a forward current is applied to the OIS-y coil 1720, the OIS-y magnet 1710, the OIS-y carrier 1410, the AF carrier 1210, and the lens may move in one direction on the y-axis. Furthermore, when a reverse current is applied to the OIS-y coil 1720, the OIS-y magnet 1710, the OIS-y carrier 1410, the AF carrier 1210, and the lens may move in the other direction on the y-axis.

[0328] Meanwhile, the OIS-x sensor 1630 senses the strength of the magnetic field of the OIS-x magnet 1610 and can sense the movement amount and position of the OIS-x magnet 1610. The movement amount and position of the OIS-x magnet 1610 sensed by the OIS-x sensor 1630 can be used for x-axis direction image stabilization feedback control. The OIS-y sensor 1730 senses the strength of the magnetic field of the OIS-y magnet 1710 and can sense the movement amount and position of the OIS-y magnet 1710. The movement amount and position of the OIS-y magnet 1710 sensed by the OIS-y sensor 1730 can be used for y-axis direction image stabilization feedback control.

[0329] A camera device according to a second embodiment of the present invention will now be described with reference to the drawings.

[0330] FIG. 68 is an exploded perspective view of a camera device according to a second embodiment of the present invention.

[0331] The camera device 1010A may include a camera module.

[0332] The camera device 1010A may include a lens module 1020. The lens module 1020 may include at least one lens. The lens may be disposed at a position corresponding to the image sensor 1060. The lens module 1020 may include a lens and a barrel. The lens module 1020 may be coupled to the AF carrier 1210 of the lens driving device 1010. The lens module 1020 may be coupled to the AF carrier 1210 by screws and / or adhesive. The lens module 1020 may move integrally with the AF carrier 1210.

[0333] The camera device 1010A may include a filter 1030. The filter 1030 can serve to block light of a specific frequency band from entering the image sensor 1060, among light passing through the lens module 1020. The filter 1030 may be arranged parallel to the xy plane. The filter 1030 may be arranged between the lens module 1020 and the image sensor 1060. The filter 1030 may be arranged on the sensor base 1040. Alternatively, the filter 1030 may be arranged on the base 1110. The filter 1030 may include an infrared filter. The infrared filter can block light in the infrared range from entering the image sensor 1060.

[0334] The camera device 1010A may include a sensor base 1040. The sensor base 1040 may be disposed between the lens driver 1010 and the printed circuit board 1050. The sensor base 1040 may include a protrusion 1041 on which the filter 1030 is disposed. An opening may be formed in the portion of the sensor base 1040 where the filter 1030 is disposed so that light passing through the filter 1030 can be incident on the image sensor 1060. An adhesive member may bond or adhere the base 1110 of the lens driver 1010 to the sensor base 1040. The adhesive member may also serve to prevent foreign matter from entering the interior of the lens driver 1010. The adhesive member may include any one or more of epoxy, a heat-curable adhesive, and an ultraviolet-curable adhesive.

[0335] The camera device 1010A may include a printed circuit board (PCB) 1050. The printed circuit board 1050 may be a substrate or a circuit board. The lens driving device 1010 may be disposed on the printed circuit board 1050. A sensor base 1040 may be disposed between the printed circuit board 1050 and the lens driving device 1010. The printed circuit board 1050 may be electrically connected to the lens driving device 1010. The image sensor 1060 may be disposed on the printed circuit board 1050. The printed circuit board 1050 may be provided with various circuits, elements, a control unit, etc. for converting an image formed on the image sensor 1060 into an electrical signal and transmitting the signal to an external device.

[0336] The camera device 1010A may include an image sensor 1060. The image sensor 1060 may be configured to form an image by receiving light that has passed through a lens and a filter 1030. The image sensor 1060 may be mounted on a printed circuit board 1050. The image sensor 1060 may be electrically connected to the printed circuit board 1050. For example, the image sensor 1060 may be coupled to the printed circuit board 1050 using surface mounting technology (SMT). For another example, the image sensor 1060 may be coupled to the printed circuit board 1050 using flip chip technology. The image sensor 1060 may be disposed such that its optical axis coincides with that of a lens. That is, the optical axis of the image sensor 1060 and the optical axis of the lens may be aligned. The image sensor 1060 may convert light irradiated onto an effective image area of ​​the image sensor 1060 into an electrical signal. The image sensor 1060 may be any one of a CCD (charge coupled device), a MOS (metal oxide semi-conductor), a CPD, and a CID.

[0337] The camera device 1010A may include a motion sensor 1070. The motion sensor 1070 may be mounted on the printed circuit board 1050. The motion sensor 1070 may be electrically connected to the control unit 1080 via a circuit pattern provided on the printed circuit board 1050. The motion sensor 1070 may output rotational angular velocity information according to the movement of the camera device 1010A. The motion sensor 1070 may include a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0338] The camera device 1010A may include a control unit 1080. The control unit 1080 may be disposed on the printed circuit board 1050. The control unit 1080 may be electrically connected to the coils 1520, 1620, and 1720 and the sensors 1530, 1630, and 1730 of the lens driving device 1010. The control unit 1080 may individually control the direction, strength, amplitude, etc. of the current supplied to the coil 1330. The control unit 1080 may control the lens driving device 1010 to perform an autofocus function and / or an image stabilization function. In addition, the control unit 1080 may perform autofocus feedback control and / or image stabilization feedback control for the lens driving device 1010.

[0339] The camera device 1010A may include a connector 1090. The connector 1090 may be electrically connected to the printed circuit board 1050. The connector 1090 may include a port for electrically connecting to an external device.

[0340] An optical apparatus according to a second embodiment of the present invention will now be described with reference to the drawings.

[0341] FIG. 69 is a perspective view of an optical apparatus according to a second embodiment of the present invention, and FIG. 70 is a perspective view of an optical apparatus according to a modified example.

[0342] The optical device 1001 may include one or more of a mobile terminal, a mobile phone, a portable terminal, a mobile terminal, a smartphone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), and a navigation system. The optical device 1001 may also include any device for taking images or photographs.

[0343] The optical device 1001 may include a main body 1020. The optical device 1001 may include a camera device 1010A. The camera device 1010A may be disposed in the main body 1020. The camera device 1010A may capture an image of an object. The optical device 1001 may include a display. The display may be disposed in the main body 1020. The display may output one or more of a video and an image captured by the camera device 1010A. The display may be disposed on a first surface of the main body 1020. The camera device 1010A may be disposed on one or more of the first surface and a second surface opposite the first surface of the main body 1020. As shown in FIG. 69, the camera device 1010A may have triple cameras arranged vertically. As shown in FIG. 70, the camera device 1010A-1 may have triple cameras arranged horizontally.

[0344] While the present invention has been described above as being divided into a first embodiment and a second embodiment, the first embodiment may include a portion of the configuration of the second embodiment. Furthermore, the second embodiment may include a portion of the configuration of the first embodiment. A third embodiment of the present invention may include a portion of the configuration of the first embodiment and a portion of the configuration of the second embodiment. More specifically, the second embodiment may include the AF attraction yoke 910 and related components of the first embodiment. Furthermore, the first embodiment may include the shaft 1810 and related components of the second embodiment.

[0345] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, it will be understood by those skilled in the art that the present invention can be embodied in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and are not limiting.

Claims

1. Fixed part; a first movable portion disposed within the fixed portion; a second moving part disposed between the fixed part and the first moving part; a first coil and a first magnet that move the first moving unit in the optical axis direction; and a second coil and a second magnet that move the second moving unit in a first direction perpendicular to the optical axis direction; The lens driving device, wherein the second coil overlaps with the first coil in the first direction.

2. the second coil includes a first unit coil and a second unit coil, The lens driving device according to claim 1 , wherein the first coil is disposed between the first unit coil and the second unit coil in the first direction.

3. The lens driving device according to claim 1 , wherein the first magnet overlaps with the second magnet in the first direction.

4. a third moving part disposed between the fixed part and the second moving part; and The lens driving device according to claim 1 , further comprising a third coil and a third magnet that move the third moving portion in a second direction perpendicular to the optical axis direction and the first direction.

5. When a current is applied to the second coil, the first moving part moves together with the second moving part; The lens driving device according to claim 4 , wherein when a current is applied to the third coil, the first moving portion and the second moving portion move together with the third moving portion.

6. a first yoke on which an attractive force acts with the first magnet; the first magnet is disposed on the first moving part, The lens driving device according to claim 1 , wherein the first yoke is disposed on the second moving portion.

7. a second yoke on which an attractive force acts with the second magnet; the second magnet is disposed on the second moving part, The lens driving device according to claim 4 , wherein the second yoke is disposed on the third moving portion.

8. a third yoke on which an attractive force acts with the third magnet; the third magnet is disposed on the third moving part, The lens driving device according to claim 7 , wherein the third yoke is disposed on the fixed portion.

9. a first ball disposed between the first moving portion and the second moving portion; the first moving portion and the second moving portion each include a first groove extending in the optical axis direction, The lens driving device according to claim 1 , wherein the first ball is disposed between the first groove of the first moving portion and the first groove of the second moving portion.

10. Fixed part; a first movable portion disposed within the fixed portion; a second moving part disposed between the fixed part and the first moving part; a first coil and a first magnet that move the first moving unit in the optical axis direction; and a second coil and a second magnet that move the second moving unit in a first direction perpendicular to the optical axis direction; A lens driving device, wherein the second moving portion includes a first surface on which a first guide portion that guides the first moving portion to move in the first direction is formed, and a second surface on which a third guide portion that guides the movement of the first moving portion in the optical axis direction is formed.

Images