Lens drive devices, camera devices, and optical instruments

Abstract

A first embodiment of the present invention relates to a lens drive device comprising: a base; a housing disposed on the base; a bobbin disposed within the housing; a first ball disposed between the housing and the base; a second ball disposed between the housing and the underside of the bobbin; and a coil spring coupled to the bobbin and the housing, wherein the coil spring pressurizes the second ball.

Description

Technical Field

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[0003]

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

Background Art

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

[0003] An autofocus function in which the focus is automatically adjusted according to the distance of the subject is applied to the camera device. Also, a shake correction function for preventing the phenomenon that the focus shakes due to the user's hand shake is applied. <00,00013>

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

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

[0006] In particular, in recent years, the lens diameter has increased due to the high pixelization of the image sensor, and the increase in the weight of the lens due to this has become a problem.

[0007] Further, in a conventional lens driving device, there is a problem that the height in the optical axis direction of the camera device increases by arranging the guide structure for OIS-x axis driving and the guide structure for OIS-y axis driving in different layers.

[0008] On the other hand, the autofocus function is performed by moving the lens in the optical axis direction relative to the image sensor, and this movement of the lens in the optical axis direction can be guided by a ball. In this case, the attractive force between the magnet and the yoke can be used to sandwich the ball between the fixed part and the moving part.

[0009] However, in this case, there is a problem in that a centering force (contering force) exists in the direction of the optical axis.

[0010] Furthermore, there is a problem in that linearity between the current and the distance traveled cannot be ensured throughout the entire stroke range of the drive for the image stabilization function.

[0011] (Patent Document 1) KR 10-2015-0118005 A [Overview of the project] [Problems that the invention aims to solve]

[0012] This embodiment aims to provide a lens drive device that reduces the current consumed for performing the autofocus function by arranging a coil, which is lighter in weight compared to the magnet, in the moving part.

[0013] Furthermore, the objective is to provide a lens drive device in which the height in the optical axis direction is minimized by integrally forming the guide structure for OIS-x axis drive and the guide structure for OIS-y axis drive.

[0014] This embodiment aims to provide a lens driving device that pressurizes a ball via an elastic member so that there is no centering force in the optical axis direction generated when the ball is pressurized through a yoke and a magnet.

[0015] Furthermore, the objective is to provide a lens drive device in which the linearity between current and travel distance is improved across the entire stroke range of the drive for the image stabilization function. [Means for solving the problem]

[0016] A lens drive device according to a first embodiment of the present invention includes a base; a housing disposed on the base; a bobbin disposed within the housing; a first ball disposed between the housing and the base; a second ball disposed between the housing and the underside of the bobbin; and a coil spring coupled to the bobbin and the housing, wherein the coil spring can pressurize the second ball.

[0017] The base may include a first guide that guides the first ball to move.

[0018] The housing may include a second guide that guides the first ball to move along its side.

[0019] The first guide and the second guide may include grooves.

[0020] The housing may include a first housing comprising a lower plate having a metal member and a second housing coupled to the first housing and having a projection for guiding the second ball.

[0021] The lens drive device includes a first substrate disposed between the first housing and the second housing, the first substrate being coupled to the lower surface of the first housing, and the second housing being able to be coupled to the first substrate.

[0022] The second housing can contact the second ball and pressurize a portion of the coil spring.

[0023] The lens drive device includes a cover that is coupled to the base, and the first ball can be positioned between the cover and the column of the base.

[0024] The aforementioned coil spring can be circular in shape when viewed from above.

[0025] The coil spring can be formed by bending such that a single strand overlaps a plurality of times in the optical axis direction.

[0026] The bobbin includes a protruding portion that protrudes from an outer peripheral surface of the bobbin, and the coil spring can connect the protruding portion of the bobbin and a lower plate of the housing.

[0027] The coil spring can connect the bobbin and the metal member of the housing.

[0028] The bobbin includes first to fourth corners, and the coil spring includes first to fourth coil springs disposed at the first to fourth corners of the bobbin. The first to fourth coil springs can be separated from each other in a direction perpendicular to the optical axis direction.

[0029] The camera device according to the first embodiment of the present invention can include a printed circuit board; an image sensor disposed on the printed circuit board; the lens driving device disposed on the printed circuit board; and a lens coupled to the lens driving device.

[0030] The optical device according to the first embodiment of the present invention can include a main body; the camera device disposed on the main body; and a display disposed on the main body and outputting any one or more of images and videos photographed by the camera device.

[0031] A lens driving device according to a second embodiment of the present invention includes a fixed part; a first moving part disposed within the fixed part; a second moving part disposed within the first moving part; a first magnet and a first coil for moving the first moving part in the optical axis direction; and a second magnet and a second coil for moving the second moving part in a first direction perpendicular to the optical axis direction, wherein the second magnet includes a first magnet part including an N pole and a S pole, and a second magnet part including an S pole and an N pole, the first magnet part and the second magnet part are disposed on the first side surface of the second moving part, and the second coil includes a first coil part that interacts with the first magnet part and a second coil part that interacts with the second magnet part, the polarity of the first magnet part facing the first coil part and the polarity of the second magnet part facing the second coil part can be different.

[0032] The polarity of the entire region of the first magnet portion facing the first coil portion can be a single polarity, being a south pole, and the polarity of the entire region of the second magnet portion facing the second coil portion can be a single polarity, being a north pole.

[0033] The first magnet portion includes an inner surface disposed on the first side surface of the second movable portion and an outer surface opposite to the inner surface, wherein the inner surface of the first magnet portion is formed as an N pole throughout its entire region, and the outer surface of the first magnet portion can be formed as an S pole throughout its entire region.

[0034] The first coil portion can overlap the first magnet portion in the first direction, and the second coil portion can overlap the second magnet portion in the first direction.

[0035] When current is applied to the second coil, the second magnet can move away from or towards the second coil in the first direction.

[0036] The first magnet portion and the second magnet portion can be formed from different magnets.

[0037] The second magnet includes a neutral portion positioned between the first magnet portion and the second magnet portion, and the first magnet portion, the second magnet portion, and the neutral portion can be formed as a single unit.

[0038] The first magnet portion and the second magnet portion can overlap in a second direction perpendicular to the optical axis direction and the first direction.

[0039] The first coil portion is electrically connected to the second coil portion, and the winding direction of the first coil portion may be opposite to the winding direction of the second coil portion.

[0040] The lens driving device includes a third magnet and a third coil that move the second moving part in a second direction perpendicular to the optical axis direction and the first direction, wherein the third magnet includes a third magnet portion including a north pole and a south pole, and a fourth magnet portion including a south pole and a north pole, and the third coil includes a third coil portion that interacts with the third magnet portion, and a fourth coil portion that interacts with the fourth magnet portion, wherein the polarity of the third magnet portion facing the third coil portion and the polarity of the fourth magnet portion facing the fourth coil portion can be different.

[0041] The second movable part includes a second side opposite to the first side, and a third and fourth side arranged opposite to each other, the first magnet being positioned on the third side of the second movable part or facing the third side, and the third magnet being positioned on the fourth side of the second movable part.

[0042] The lens drive device may include a ball positioned between the first moving part and the second moving part.

[0043] A lens driving device according to a second embodiment of the present invention includes a fixed part; a first moving part disposed within the fixed part; a second moving part disposed within the first moving part; a first magnet and a first coil for moving the first moving part in the optical axis direction; and a second magnet and a second coil for moving the second moving part in a first direction perpendicular to the optical axis direction, wherein the second magnet includes a first magnet part including an N pole and a S pole, and a second magnet part including an S pole and an N pole, and the second coil includes a first coil part that interacts with the first magnet part, and a second coil part that interacts with the second magnet part, wherein the first coil part can overlap with the first magnet part in the first direction, and the second coil part can overlap with the second magnet part in the first direction.

[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; a lens drive device disposed on the printed circuit board; and a lens coupled to the lens drive device.

[0045] An optical device according to a 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 that outputs one or more of the video and images captured by the camera device. [Effects of the Invention]

[0046] In this embodiment, a coil that is lighter in weight than the magnet is placed in the moving part, and the current consumed for performing the autofocus function can be reduced.

[0047] Furthermore, by integrating the guide structure for OIS-x axis drive and the guide structure for OIS-y axis drive, the height of the lens drive device in the optical axis direction can be minimized.

[0048] This allows the camera unit to protrude as little as possible from a smartphone.

[0049] Furthermore, because the centering force in the optical axis direction generated when the ball is pressurized by the yoke and magnet is eliminated, meaning there is no force trying to return to the centered position, the consumption of current used for AF drive is reduced, even by a small amount, and the accuracy of AF drive can be improved.

[0050] Furthermore, by using a coil spring as an elastic component, for example, a stress-relieving effect can be expected due to the increased spring volume. Therefore, reliability and durability characteristics can be improved. In addition, the length of the drivable stroke can be increased.

[0051] Furthermore, when using coil springs as elastic components, the number of parts is reduced compared to plate springs and wire coupling structures, simplifying the process and improving costs.

[0052] Furthermore, linearity between current and travel distance can be ensured throughout the entire stroke range of the drive for the image stabilization function. [Brief explanation of the drawing]

[0053] [Figure 1] This is a conceptual diagram of a lens driving device according to the first embodiment of the present invention. [Figure 2] This is a perspective view of a lens drive device according to a first embodiment of the present invention. [Figure 3] This is a cross-sectional view from point AA in Figure 2. [Figure 4] This is a cross-sectional view from BB in Figure 2. [Figure 5] This is an enlarged view of region F in Figure 4. [Figure 6] This is a cross-sectional view from CC in Figure 2. [Figure 7] This is an enlarged view of region G in Figure 6. [Figure 8] This is a cross-sectional view from the DD in Figure 2. [Figure 9] This is an enlarged view of region H in Figure 8. [Figure 10] This is a cross-sectional view from EE in Figure 2. [Figure 11] This is a cross-sectional view of a lens driving device according to the first embodiment of the present invention, taken from above after cutting it in a direction perpendicular to the optical axis. [Figure 12] This is an exploded perspective view of a lens drive device according to a first embodiment of the present invention. [Figure 13] This is an exploded perspective view of a lens drive device according to a first embodiment of the present invention, viewed from a different direction than Figure 12. [Figure 14] This is a perspective view of the lens drive device according to the first embodiment of the present invention, with the cover omitted. [Figure 15] This is a perspective view showing the fixed part and related configuration of a lens drive device according to a first embodiment of the present invention. [Figure 16] This is a perspective view showing the moving part and related configuration of a lens drive device according to a first embodiment of the present invention. [Figure 17] This is a perspective view showing the coupling structure of the inner substrate and the outer substrate of a lens drive device according to the first embodiment of the present invention. [Figure 18] This is a bottom perspective view showing the moving part and related configuration of a lens drive device according to the first embodiment of the present invention. [Figure 19] This is a bottom perspective view showing the coupling structure of the inner and outer substrates of a lens drive device according to the first embodiment of the present invention. [Figure 20] This is a perspective view of Figure 16 with the cover removed. [Figure 21a] Figure 20 is a perspective view with the OIS moving unit and related components removed. [Figure 21b] This is a magnified perspective view showing the coupling structure between the coil spring and the AF carrier. [Figure 21c] This is a magnified perspective view showing the coupling structure between the coil spring and the OIS carrier. [Figure 22] Figure 21a is an exploded perspective view showing the coil spring separated from the coil spring. [Figure 23] This is a perspective view showing the OIS moving section and related configuration of a lens drive device according to a first embodiment of the present invention. [Figure 24] This is a bottom perspective view from a different direction than Figure 23. [Figure 25] Figure 16 is a bottom perspective view from a different direction. [Figure 26] This is a bottom view of Figure 25 with the preloading member and inner substrate removed. [Figure 27] This is a perspective view showing the coupling structure of the OIS carrier, coil spring, and metal member of a lens drive device according to the first embodiment of the present invention. [Figure 28] This is an enlarged view of region I in Figure 27. [Figure 29] This is a perspective view of the lens drive device according to the first embodiment of the present invention, with the cover removed. [Figure 30] This is a bottom perspective view of the drive unit of a lens drive device according to the first embodiment of the present invention. [Figure 31] This is a cross-sectional perspective view showing the coupling structure of the coil spring of a lens drive device according to the first embodiment of the present invention. [Figure 32] This is a cross-sectional view showing the coupling structure of a coil spring in a lens drive device according to a first embodiment of the present invention. [Figure 33a] This is a front view showing a modified coil spring in a lens drive device. [Figure 33b] A perspective view showing the coil spring and its coupling structure in a lens drive device with other modifications. [Figure 33c] This figure shows a coil spring with various additional variations. [Figure 34] This is a cross-sectional view of a modified lens drive device, cut perpendicular to the optical axis and viewed from above. [Figure 35] This is a bottom perspective view of the drive unit of the lens drive device, showing a modified version. [Figure 36] This is a plan view of the lens drive device according to the first embodiment of the present invention with the cover removed. [Figure 37] This is a plan view of Figure 36, enlarged in part and with the cover omitted. [Figure 38] This is a perspective view showing the ball and related components of a lens drive device according to a first embodiment of the present invention. [Figure 39]This is a perspective view showing the ball housing structure of the base of a lens drive device according to the first embodiment of the present invention. [Figure 40] Figure 39 is a perspective view showing the arrangement of the ball, plate member, elastic member, and reinforcing member. [Figure 41] Figure 40 is a perspective view from a different direction. [Figure 42] This is a perspective view showing the moving part and ball of a lens drive device according to the first embodiment of the present invention. [Figure 43] Figure 42 is a perspective view from a different direction. [Figure 44a] This diagram compares the height of the ball and the pressure point with the movable part in an upward position. [Figure 44b] This diagram compares the height of the ball and the pressure point with the movable part in a downward position. [Figure 45] This figure illustrates the autofocus drive of a lens drive device according to a first embodiment of the present invention. It is a cross-sectional view showing the movement of the moving part in the initial state when no current is applied to the AF coil. [Figure 46] This figure illustrates the autofocus drive of a lens drive device according to a first embodiment of the present invention. It is a cross-sectional view showing the movement of the moving part upward in the optical axis direction when a positive current is applied to the AF coil. [Figure 47] This figure illustrates the autofocus drive of a lens drive device according to the first embodiment of the present invention. It is a cross-sectional view showing the movement of the moving part downward in the optical axis direction when a reverse current is applied to the AF coil. [Figure 48] This figure illustrates the image stabilization drive of a lens drive device according to a first embodiment of the present invention. It is a cross-sectional view showing the OIS movement in the initial state when no current is applied to the OIS-x coil and OIS-y coil. [Figure 49] This figure illustrates the image stabilization drive of a lens drive device according to a first embodiment of the present invention. It is a cross-sectional view showing the OIS moving part moving in the x-axis direction perpendicular to the optical axis when current is applied to the OIS-x coil. [Figure 50]This figure illustrates the image stabilization drive of a lens drive device according to a first embodiment of the present invention. It is a cross-sectional view showing the OIS moving part moving in the y-axis direction perpendicular to the optical axis and the x-axis when current is applied to the OIS-y coil. [Figure 51] This is an exploded perspective view of a camera device according to the first embodiment of the present invention. [Figure 52] This is a perspective view of an optical device according to the first embodiment of the present invention. [Figure 53] This is a perspective view of an optical instrument with modified characteristics. [Figure 54] This is a conceptual diagram of a lens driving device according to a second embodiment of the present invention. [Figure 55] This is a perspective view of a lens drive device according to a second embodiment of the present invention. [Figure 56] This is a cross-sectional view from point AA in Figure 55. [Figure 57] Figure 55 is a cross-sectional view from BB. [Figure 58] This is an enlarged view of region F in Figure 57. [Figure 59] Figure 55 is a cross-sectional view from CC. [Figure 60] This is an enlarged view of region G in Figure 59. [Figure 61] Figure 55 is a cross-sectional view from the DD. [Figure 62] This is an enlarged view of region H in Figure 61. [Figure 63] This is a cross-sectional view from EE in Figure 55. [Figure 64] This is a cross-sectional view of a lens driving device according to a second embodiment of the present invention, taken from above after cutting it in a direction perpendicular to the optical axis. [Figure 65] This is an exploded perspective view of a lens drive device according to a second embodiment of the present invention. [Figure 66] This is an exploded perspective view of a lens drive device according to a second embodiment of the present invention, viewed from a different direction than Figure 65. [Figure 67] This is a perspective view of a lens drive device according to a second embodiment of the present invention, with the cover omitted. [Figure 68]This is a perspective view showing the fixed part and related configuration of a lens drive device according to a second embodiment of the present invention. [Figure 69] This is a perspective view showing the moving part and related configuration of a lens drive device according to a second embodiment of the present invention. [Figure 70] This is a perspective view showing the coupling structure of the inner substrate and the outer substrate of a lens drive device according to a second embodiment of the present invention. [Figure 71] This is a bottom perspective view showing the moving part and related configuration of a lens drive device according to a second embodiment of the present invention. [Figure 72] This is a bottom perspective view showing the coupling structure of the inner and outer substrates of a lens drive device according to a second embodiment of the present invention. [Figure 73] This is a perspective view of Figure 69 with the cover removed. [Figure 74] This is a perspective view of Figure 73 with the OIS moving unit and related components removed. [Figure 75] Figure 74 is an exploded perspective view showing the wire separated from the original wire. [Figure 76] This is a perspective view showing the OIS moving section and related configuration of a lens drive device according to a second embodiment of the present invention. [Figure 77] This is a bottom perspective view from a different direction than Figure 76. [Figure 78] Figure 69 is a bottom perspective view from a different direction. [Figure 79] This is a bottom view of Figure 78 with the preloading member and inner substrate removed. [Figure 80] This is a perspective view showing the coupling structure of the elastic member, wire, and metal member of a lens drive device according to a second embodiment of the present invention. [Figure 81] This is an enlarged view of region I in Figure 80. [Figure 82] This is a partially perspective view of a lens drive device according to a second embodiment of the present invention, with the cover removed. [Figure 83] This is an enlarged view of area A in Figure 82. [Figure 84] This is an enlarged view of area B in Figure 82. [Figure 85]This is a bottom perspective view of the drive unit of a lens drive device according to a second embodiment of the present invention. [Figure 86] This is a bottom perspective view of the drive unit of the lens drive device, showing a modified version. [Figure 87] This is a cross-sectional perspective view showing the coupling structure of the wire and preloading member of a lens drive device according to a second embodiment of the present invention. [Figure 88] This is a cross-sectional view showing the coupling structure of the wire and preloading member of a lens drive device according to a second embodiment of the present invention. [Figure 89] This is a plan view of the lens drive device according to the second embodiment of the present invention with the cover removed. [Figure 90] This is a plan view of Figure 89, enlarged and with the cover omitted. [Figure 91] This is a perspective view showing the ball and related configuration of a lens drive device according to a second embodiment of the present invention. [Figure 92] This is a perspective view showing the ball housing structure of the base of a lens drive device according to a second embodiment of the present invention. [Figure 93] Figure 92 is a perspective view showing the arrangement of the ball, plate member, elastic member, and reinforcing member. [Figure 94] Figure 93 is a perspective view from a different direction. [Figure 95] This is a perspective view showing the moving part and ball of a lens drive device according to a second embodiment of the present invention. [Figure 96] Figure 95 is a perspective view from a different direction. [Figure 97a] This diagram compares the height of the ball and the pressure point with the movable part in an upward position. [Figure 97b] This diagram compares the height of the ball and the pressure point with the movable part in a downward position. [Figure 98] This figure illustrates the autofocus drive of a lens drive device according to a second embodiment of the present invention. It is a cross-sectional view showing the movement of the moving part in the initial state when no current is applied to the AF coil. [Figure 99]This figure illustrates the autofocus drive of a lens drive device according to a second embodiment of the present invention. It is a cross-sectional view showing the movement of the moving part upward in the optical axis direction when a positive current is applied to the AF coil. [Figure 100] This figure illustrates the autofocus drive of a lens drive device according to a second embodiment of the present invention. It is a cross-sectional view showing the movement of the moving part downward in the optical axis direction when a reverse current is applied to the AF coil. [Figure 101] This figure illustrates the image stabilization drive of a lens drive device according to a second embodiment of the present invention. It is a cross-sectional view showing the state of the OIS moving part in the initial state when no current is applied to the OIS-x coil and OIS-y coil. [Figure 102] This figure illustrates the image stabilization drive of a lens drive device according to a second embodiment of the present invention. It is a cross-sectional view showing the OIS moving part moving in the x-axis direction perpendicular to the optical axis when current is applied to the OIS-x coil. [Figure 103] This figure illustrates the image stabilization drive of a lens drive device according to a second embodiment of the present invention. It is a cross-sectional view showing the OIS moving part moving in the y-axis direction perpendicular to the optical axis and the x-axis when current is applied to the OIS-y coil. [Figure 104] This is an exploded perspective view of a camera device according to a second embodiment of the present invention. [Figure 105] This is a perspective view of an optical device according to a second embodiment of the present invention. [Figure 106] This is a perspective view of an optical instrument with modified characteristics. [Modes for carrying out the invention]

[0054] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings. However, the technical concept of the present invention is not limited to the embodiments described, and can be embodied in various different forms. Within the scope of the technical concept of the present invention, one or more components between embodiments can be selectively combined or substituted for each other.

[0055] Furthermore, unless explicitly defined and described, terms used in the embodiments of the present invention (including technical and scientific terms) should be interpreted in the sense generally understood by a person skilled in the art to which the invention pertains, and commonly used terms, such as those defined in dictionaries, should be interpreted in consideration of their contextual meaning as described in the present invention.

[0056] Furthermore, the terminology used in the embodiments of this invention is for illustrative purposes only and does not limit the invention.

[0057] In this specification, singular types may also include plural types unless otherwise specified in the text, and when it says "A and / or at least one of B, C," it may include one or more of all possible combinations of A, B, and C.

[0058] Furthermore, when describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc., can be used. Such terms are used to distinguish a component from other components, and the term does not limit the essence, number, or order of the component in question.

[0059] Furthermore, when a component is described as “linked,” “joined,” or “connected” to another component, this includes not only cases where the component is directly linked, joined, or connected to the other component, but also cases where it is linked, joined, or connected by another component between it and the other component.

[0060] Furthermore, when described as being formed or positioned "above or below" each component, "above or below" includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or positioned between the two components. Also, when expressed as "above or below," it can include not only an upward direction but also a downward direction relative to one component.

[0061] In the following, "Optical Axis (see OA in Figure 45) direction" is defined as the optical axis direction of the lens and / or image sensor coupled to the lens drive unit.

[0062] As used below, "vertical direction" can be parallel to or the same as the optical axis. The vertical direction can correspond to the "z-axis direction". As used below, "horizontal direction" can be perpendicular to the vertical direction. That is, the horizontal direction can be perpendicular to the optical axis. Therefore, the horizontal direction can include the "x-axis direction" and the "y-axis direction".

[0063] Hereafter, one of the "x-axis direction" and the "y-axis direction" can be referred to as the "first direction," and the other as the "second direction."

[0064] In the following, "autofocus (AF) function" is defined as a function that automatically focuses on a subject by adjusting the distance to the image sensor by moving the lens along the optical axis according to the distance to the subject, so that a clear image of the subject is obtained on the image sensor. Furthermore, "closed-loop auto focus (CLAF) control" is defined as a function that senses the distance between the image sensor and the lens and provides real-time feedback control of the lens position to improve the accuracy of focus adjustment.

[0065] In the following, "optical image stabilization (OIS) function" is defined as a function that moves or tilts the lens perpendicular to the optical axis to counteract camera shake, preventing the image or video from shaking due to the user's hand movement. Furthermore, "closed-loop autofocus (CLAF) control" is defined as a function that senses the position of the lens relative to the image sensor and provides real-time feedback control of the lens position to improve the accuracy of image stabilization.

[0066] Hereinafter, one of the "AF moving unit 200" and the "OIS moving unit 300" may be referred to as the "first moving unit," and the other as the "second moving unit."

[0067] Hereinafter, one of the "AF drive unit" and the "OIS drive unit" may be referred to as the "first drive unit," and the other as the "second drive unit."

[0068] Hereinafter, one of the "AF drive unit," "OIS-x drive unit," and "OIS-y drive unit" may be referred to as the "first drive unit," the other as the "second drive unit," and the third as the "third drive unit."

[0069] Hereinafter, one of the "AF magnet 410," "OIS-x magnet 510," and "OIS-y magnet 610" may be referred to as the "first magnet," another as the "second magnet," and yet another as the "third magnet."

[0070] Hereinafter, one of the "AF coil 420," "OIS-x coil 520," and "OIS-y coil 620" may be referred to as the "first coil," another as the "second coil," and yet another as the "third coil."

[0071] Hereinafter, one of the "outer substrate 710" and the "inner substrate 720" may be referred to as the "first substrate," and the other as the "second substrate."

[0072] Hereinafter, one of the "AF Guide Ball 810" and the "OIS Guide Ball 820" can be referred to as the "first ball," and the other as the "second ball."

[0073] Hereinafter, one of the "holder member 220" and the "preload member 230" may be referred to as the "first member," and the other as the "second member." Alternatively, hereafter, one of the "holder member 220" and the "preload member 230" may be referred to as the "first housing," and the other as the "second housing."

[0074] Hereinafter, one of the "AF sensor 430," "OIS-x sensor 530," and "OIS-y sensor 630" may be referred to as the "first sensor," another as the "second sensor," and yet another as the "third sensor."

[0075] Hereinafter, one of the following three yokes, "AF yoke 440," "OIS-x yoke 540," and "OIS-y yoke 640," will be referred to as the "first yoke," another as the "second yoke," and yet another as the "third yoke."

[0076] Hereinafter, one of the individual balls of the AF guide ball 810 and the individual balls of the OIS guide ball 820 can be referred to as the "first unit ball," the other as the "second unit ball," the other as the "third unit ball," and the other as the "fourth unit ball." Furthermore, to refer to individual balls such as the "fifth unit ball," "sixth unit ball," etc., the term "nth unit ball" can be used.

[0077] Hereinafter, one of the "column section 111" and the "exterior wall section 112" may be referred to as the "first part," and the other as the "second part."

[0078] Hereinafter, one of the "inner groove 111-1" and the "outer groove 112-1" can be referred to as the "first groove," and the other as the "second groove."

[0079] Hereinafter, one of the "inner groove 224-1" and "outer groove 224-2" may be referred to as the "first groove," and the other as the "second groove."

[0080] Hereinafter, one of the "inner ball 811" and the "outer ball 812" can be referred to as the "first unit ball," and the other as the "second unit ball."

[0081] Hereinafter, one of the "inner top layer cardboard 811-1" and the "outer top layer cardboard 812-1" may be referred to as the "first top layer cardboard," and the other as the "second top layer cardboard."

[0082] Hereinafter, one of the "inner bottom layer cardboard 811-2" and the "outer bottom layer cardboard 812-2" may be referred to as the "first bottom layer cardboard," and the other as the "second bottom layer cardboard."

[0083] Hereinafter, one of the "upper bent portion 921," the "lower bent portion 922," and the "connecting bent portion 923" may be referred to as the "first bent portion," the other as the "second bent portion," and the other as the "third bent portion."

[0084] Hereafter, "AF Carrier 210" can be referred to as "Housing".

[0085] Hereafter, "OIS Carrier 310" can be referred to as "bobbin".

[0086] Hereinafter, one of the "AF moving unit 1200" and the "OIS moving unit 1300" may be referred to as the "first moving unit," and the other as the "second moving unit."

[0087] Hereinafter, one of the "AF drive unit" and the "OIS drive unit" may be referred to as the "first drive unit," and the other as the "second drive unit."

[0088] Hereinafter, one of the "AF drive unit," "OIS-x drive unit," and "OIS-y drive unit" may be referred to as the "first drive unit," the other as the "second drive unit," and the third as the "third drive unit."

[0089] Hereinafter, one of the "AF magnet 1410," "OIS-x magnet 1510," and "OIS-y magnet 1610" may be referred to as the "first magnet," another as the "second magnet," and yet another as the "third magnet."

[0090] Hereinafter, one of the "AF coil 1420," "OIS-x coil 1520," and "OIS-y coil 1620" may be referred to as the "first coil," another as the "second coil," and yet another as the "third coil."

[0091] Hereinafter, one of the "outer substrate 1710" and the "inner substrate 1720" may be referred to as the "first substrate," and the other as the "second substrate."

[0092] Hereinafter, one of the "AF guide ball 1810" and the "OIS guide ball 1820" can be referred to as the "first ball," and the other as the "second ball."

[0093] Hereinafter, one of the "holder member 1220" and the "preload member 1230" may be referred to as the "first member," and the other as the "second member." Alternatively, hereafter, one of the "holder member 1220" and the "preload member 1230" may be referred to as the "first housing," and the other as the "second housing."

[0094] Hereinafter, one of the "AF sensor 1430," "OIS-x sensor 1530," and "OIS-y sensor 1630" may be referred to as the "first sensor," another as the "second sensor," and yet another as the "third sensor."

[0095] Hereinafter, one of the following three yokes, "AF yoke 1440," "OIS-x yoke 1540," and "OIS-y yoke 1640," will be referred to as the "first yoke," another as the "second yoke," and yet another as the "third yoke."

[0096] Hereinafter, one of the individual balls of the AF guide ball 1810 and the individual balls of the OIS guide ball 1820 can be referred to as the "first unit ball," the other as the "second unit ball," the other as the "third unit ball," and the other as the "fourth unit ball." Furthermore, to refer to individual balls such as the "fifth unit ball," "sixth unit ball," etc., the term "nth unit ball" can be used.

[0097] Hereinafter, one of the "column section 1111" and the "exterior wall section 1112" may be referred to as the "first part," and the other as the "second part."

[0098] Hereinafter, one of the "inner groove 1111-1" and the "outer groove 1112-1" can be referred to as the "first groove," and the other as the "second groove."

[0099] Hereinafter, one of the "inner groove 1224-1" and "outer groove 1224-2" may be referred to as the "first groove," and the other as the "second groove."

[0100] Hereinafter, one of the "inner ball 1811" and the "outer ball 1812" can be referred to as the "first unit ball," and the other as the "second unit ball."

[0101] Hereinafter, one of the two "inner top layer cardboard 1811-1" and "outer top layer cardboard 1812-1" may be referred to as the "first top layer cardboard," and the other as the "second top layer cardboard."

[0102] Hereinafter, one of the "inner bottom cardboard 1811-2" and the "outer bottom cardboard 1812-2" can be referred to as the "first bottom cardboard," and the other as the "second bottom cardboard."

[0103] Hereinafter, one of the "upper bent section 1921," the "lower bent section 1922," and the "connecting bent section 1923" may be referred to as the "first bent section," the other as the "second bent section," and the other as the "third bent section."

[0104] Hereafter, "AF Carrier 1210" can be referred to as "Housing".

[0105] Hereafter, "OIS Carrier 1310" can be referred to as "bobbin".

[0106] The configuration of the lens driving device according to the first embodiment of the present invention will be described below with reference to the drawings.

[0107] Figure 1 is a conceptual diagram of a lens drive device according to the first embodiment of the present invention. Figure 2 is a perspective view of the lens drive device according to the first embodiment of the present invention. Figure 3 is a cross-sectional view taken from AA in Figure 2. Figure 4 is a cross-sectional view taken from BB in Figure 2. Figure 5 is an enlarged view of region F in Figure 4. Figure 6 is a cross-sectional view taken from CC in Figure 2. Figure 7 is an enlarged view of region G in Figure 6. Figure 8 is a cross-sectional view taken from DD in Figure 2. Figure 9 is an enlarged view of region H in Figure 8. Figure 10 is a cross-sectional view taken from EE in Figure 2. Figure 11 is a cross-sectional view taken from above, cut in a direction perpendicular to the optical axis, of the lens drive device according to the first embodiment of the present invention. Figure 12 is an exploded perspective view of the lens drive device according to the first embodiment of the present invention. Figure 13 is an exploded perspective view of the lens drive device according to the first embodiment of the present invention, taken from a different direction than Figure 12. Figure 14 is a perspective view of the lens drive device according to the first embodiment of the present invention with the cover omitted. Figure 15 is a perspective view showing the fixed part and related configuration of the lens drive device according to the first embodiment of the present invention. Figure 16 is a perspective view showing the movable part and related configuration of the lens drive device according to the first embodiment of the present invention. Figure 17 is a perspective view showing the coupling structure of the inner and outer substrates of a lens drive device according to a first embodiment of the present invention. Figure 18 is a bottom perspective view showing the moving part and related configuration of a lens drive device according to a first embodiment of the present invention. Figure 19 is a bottom perspective view showing the coupling structure of the inner and outer substrates of a lens drive device according to a first embodiment of the present invention. Figure 20 is a perspective view of Figure 16 with the cover removed. Figure 21a is a perspective view of Figure 20 with the OIS moving part and related configuration removed. Figure 21b is a perspective view showing an enlarged view of the coupling structure of the coil spring and AF carrier. Figure 21c is a perspective view showing an enlarged view of the coupling structure of the coil spring and OIS carrier. Figure 22 is an exploded perspective view of Figure 21a with the coil spring separated. Figure 23 is a perspective view showing the OIS moving part and related configuration of a lens drive device according to a first embodiment of the present invention. Figure 24 is a bottom perspective view from a different direction than Figure 23. Figure 25 is a bottom perspective view of Figure 16 from another direction. Figure 26 is a bottom view of Figure 25 with the preload member and inner substrate removed.Figure 27 is a perspective view showing the coupling structure of the OIS carrier, coil spring, and metal member of a lens drive device according to a first embodiment of the present invention. Figure 28 is an enlarged view of area I in Figure 27. Figure 29 is a perspective view of the lens drive device according to a first embodiment of the present invention with the cover removed. Figure 30 is a bottom perspective view of the drive unit of the lens drive device according to a first embodiment of the present invention. Figure 31 is a cross-sectional perspective view showing the coupling structure of the coil spring of the lens drive device according to a first embodiment of the present invention. Figure 32 is a cross-sectional view showing the coupling structure of the coil spring of the lens drive device according to a first embodiment of the present invention. Figure 33a is a front view showing a modified coil spring of the lens drive device. Figure 33b is a perspective view showing the coil spring and its coupling structure of the lens drive device according to another modified example. Figure 33c is a diagram showing coil springs according to various additional modifications. Figure 36 is a plan view showing the lens drive device according to a first embodiment of the present invention with the cover removed. Figure 37 is a plan view showing a part of Figure 36 enlarged with the cover omitted. Figure 38 is a perspective view showing the ball and related configuration of the lens drive device according to a first embodiment of the present invention. Figure 39 is a perspective view showing the ball housing structure of the base of a lens drive device according to a first embodiment of the present invention. Figure 40 is a perspective view showing the arrangement of the ball, plate member, elastic member, and reinforcing member in Figure 39. Figure 41 is a perspective view of Figure 40 from another direction. Figure 42 is a perspective view showing the moving part and ball of the lens drive device according to a first embodiment of the present invention. Figure 43 is a perspective view of Figure 42 from another direction. Figure 44(a) is a diagram comparing the height of the ball and the pressurized point when the moving part is moved upward, and (b) is a diagram comparing the height of the ball and the pressurized point when the moving part is moved downward.

[0108] The lens drive device 10 can be a voice coil motor (VCM). The lens drive device 10 can be a lens drive motor. The lens drive device 10 can be a lens drive actuator. The lens drive device 10 can include an AF module. The lens drive device 10 can include an OIS module.

[0109] The lens drive device 10 may include a fixed part 100. The fixed part 100 can be a part that is fixed relative to the movement of the moving part. The moving part can move relative to the fixed part 100.

[0110] The lens drive unit 10 may include a base 110. The fixed part 100 may include a base 110. The base 110 may be located below the AF carrier 210. The base 110 may be located below the OIS carrier 310. The base 110 may be coupled with the cover 120. The AF carrier 210 and the OIS carrier 310 may be located on the base 110. The AF carrier 210 and the OIS carrier 310 may be located on the lower plate portion of the base 110. The AF carrier 210 and the OIS carrier 310 may be located inside the base 110. The AF carrier 210 and the OIS carrier 310 may be located inside the side wall portion of the base 110.

[0111] The base 110 may include a lower plate. The lower plate of the base 110 can support the lower surface of the AF moving part 200. The lower plate of the base 110 can support the lower surface of the AF carrier 210.

[0112] The base 110 may include a column 111. The column 111 may extend from the upper surface of the lower plate. The column 111 may be positioned inside the outer wall 112.

[0113] The base 110 may include a first guide that guides the AF guide ball 810 as it moves. The first guide may include an inner groove 111-1 of the base 110. The first guide may include an outer groove 112-1 of the base 110.

[0114] The base 110 may include an inner groove 111-1. The columnar portion 111 may include an inner groove 111-1. The inner groove 111-1 may be formed in the columnar portion 111. The inner groove 111-1 may be an "AF guide ball housing groove". An AF guide ball 810 may be placed in the inner groove 111-1. An inner ball 811 may be placed in the inner groove 111-1. The inner groove 111-1 may be in direct contact with the AF guide ball 810. The inner groove 111-1 may be positioned in the optical axis direction. The inner groove 111-1 may include multiple grooves. The inner groove 111-1 may include two grooves. The two grooves may be positioned parallel to each other. The two grooves may be positioned diagonally to each other with respect to the optical axis.

[0115] The base 110 may include a stepped jaw portion 111-2. The stepped jaw portion 111-2 may be formed on the column portion 111. A plate member 910 may be placed on the stepped jaw portion 111-2.

[0116] The base 110 may include an exterior wall portion 112. The exterior wall portion 112 may be a "side portion". The exterior wall portion 112 may be a "side plate". The exterior wall portion 112 may be a "side wall". The exterior wall portion 112 of the base 110 may extend from the upper surface of the bottom plate portion.

[0117] The base 110 may include an outer groove 112-1. The outer wall portion 112 may include an outer groove 112-1. The outer groove 112-1 may be formed to face the inner groove 111-1. The outer groove 112-1 may be positioned to face the inner groove 111-1. The outer groove 112-1 may be an "AF guide ball housing groove". An AF guide ball 810 may be positioned in the outer groove 112-1. An outer ball 812 may be positioned in the outer groove 112-1. The outer groove 112-1 may be in direct contact with the AF guide ball 810. The outer groove 112-1 may be positioned in the optical axis direction. The outer groove 112-1 may include multiple grooves. The outer groove 112-1 may include two grooves. The two grooves may be positioned parallel to each other. The two grooves may be positioned diagonally to each other with respect to the optical axis. The outer groove 112-1 can be positioned on the opposite side of the inner groove 111-1. The outer groove 112-1 can be formed in a shape corresponding to that of the inner groove 111-1. The outer groove 112-1 and the inner groove 111-1 can be formed to have the same length in the optical axis direction.

[0118] The base 110 may include a protrusion 114. The protrusion 114 may project outward. Connecting portions 712 of the outer substrate 710 may be positioned above and below the protrusion 114. Grooves may be formed in the protrusion 114 to prevent interference when the connecting portions 712 of the outer substrate 710 move.

[0119] The base 110 may include a step. The step may be formed at the lower end of the outer surface of the base 110. The step may protrude from the outer surface of the base 110. The side plate 122 of the cover 120 may be positioned on the step of the base 110.

[0120] The lens drive unit 10 may include a cover 120. The fixing part 100 may include a cover 120. The cover 120 may be placed on the base 110. The cover 120 may be placed on the base 110. The cover 120 may be coupled to the base 110. The cover 120 may be fixed to the base 110. The cover 120 may house an AF carrier 210 inside. The cover 120 may house an OIS carrier 310 inside. The cover 120 may be a shielding member. The cover 120 may be a shielding can.

[0121] The cover 120 may include a top plate 121. The top plate 121 may be positioned on the movable part. The upward movement of the movable part may be restricted by the movable part contacting the top plate 121. The top plate 121 may include holes through which light passes.

[0122] The cover 120 may include side plates 122. The side plates 122 may extend from the top plate 121. The side plates 122 may be positioned on the base 110. The side plates 122 may be positioned on a stepped portion that protrudes from the lower end of the outer surface of the base 110. The side plates 122 may include multiple side plates. The side plates 122 may include four side plates. The side plates 122 may include a first side plate and a second side plate positioned on opposite sides of each other, and a third side plate and a fourth side plate positioned on opposite sides of each other.

[0123] The lens drive device 10 may include a movable part. The movable part may be located on the fixed part 100. The movable part may be located within the fixed part 100. The movable part may be located on the fixed part 100. The movable part may be movably located on the fixed part 100. The movable part may be moved relative to the fixed part 100 by a drive unit. The movable part may be moved during AF drive. The movable part may be moved during OIS drive. A lens may be coupled to the movable part.

[0124] The lens drive device 10 may include an AF moving unit 200. The AF moving unit 200 can be located on the fixed unit 100. The AF moving unit 200 can be located within the fixed unit 100. The AF moving unit 200 can be located on the fixed unit 100. The AF moving unit 200 can be located between the fixed unit 100 and the OIS moving unit 300. The AF moving unit 200 can be movably located on the fixed unit 100. The AF moving unit 200 can be moved in the optical axis direction relative to the fixed unit 100 by the AF drive unit 400. The AF moving unit 200 can move when AF is being driven.

[0125] In a modified configuration, the AF moving unit 200 and the AF drive unit 400 can be omitted. That is, the OIS moving unit 300 can be placed on the fixed unit 100. Alternatively, the OIS moving unit 300 can be placed on the fixed unit 100, and the AF moving unit 200 can be placed inside the OIS moving unit 300.

[0126] The lens drive unit 10 may include an AF carrier 210. The AF moving unit 200 may include an AF carrier 210. The AF carrier 210 may be an "AF holder". The AF carrier 210 may be a "housing". The AF carrier 210 may be located inside the base 110. The AF carrier 210 may be located on the base 110. The AF carrier 210 may be located inside the cover 120. The AF carrier 210 may be located between the base 110 and the OIS carrier 310. The AF carrier 210 may be located so as to be movable in the optical axis direction.

[0127] The AF carrier 210 may include a frame, a first upper plate, and a second upper plate. In this case, the frame may be the main body. The frame may be a holder member 220. The first upper plate may be a metal member 225. The second upper plate may be a preload member 230. The AF carrier 210 may be a housing. The housing may include a first housing and a second housing. In this case, the first housing may include a holder member 220, and the second housing may include a preload member 230. The OIS carrier 310 may be a bobbin. The OIS guide ball 820 may be positioned between the housing and the bobbin. The AF guide ball 810 may be positioned between the side of the housing and the cover 120. The AF guide ball 810 may be positioned between the side of the housing and the base or the column of the base.

[0128] The lens drive device 10 may include a holder member 220. The AF carrier 210 may also include a holder member 220. The holder member 220 may be formed separately from the preload member 230. A wire 850 may be connected to the holder member 220.

[0129] The AF carrier 210 may include a bottom plate. The bottom plate can be positioned below the OIS carrier 310. The bottom plate can be positioned between the OIS carrier 310 and the base 110.

[0130] The AF carrier 210 may include a groove 222. The groove 222 may be a "preload member passage hole". The holder member 220 may include a groove 222. The lower plate of the holder member 220 may include a groove 222. The groove 222 may be formed in the lower plate of the holder member 220. The groove 222 may open inward. A preload member 230 may be inserted into the groove 222. A projection 231 of the preload member 230 may be inserted into the groove 222. The groove 222 may be formed independently. The groove 222 may be replaced independently. That is, in a modified example, the AF carrier 210 may include a groove 222 into which the projection 231 of the preload member 230 is inserted.

[0131] The AF carrier 210 may include a hole 223 through which a coil spring 830 passes. The AF carrier 210 may include a hole 223 in which a coil spring 830 is positioned. The AF carrier 210 may include a hole 223 in which the lower end of a coil spring 830 is positioned.

[0132] The AF carrier 210 may include side walls. The side walls may extend downward from the top plate. An inner substrate 720 may be placed on the side wall. An AF coil 420 may be placed on the side wall. An OIS-x coil 520 may be placed on the side wall. An OIS-y coil 620 may be placed on the side wall. The side wall may include grooves to avoid the coils. The side wall may include multiple side walls. The side wall may include four side walls. The side wall may include a first and second side wall positioned on opposite sides of each other, and a third and fourth side wall positioned on opposite sides of each other.

[0133] The AF carrier 210 may include a second guide that guides the movement of the AF guide ball 810. The second guide may include an inner groove 224-1 of the AF carrier 210. The second guide may include an outer groove 224-2 of the AF carrier 210.

[0134] The AF carrier 210 may include an inner groove 224-1. The holder member 220 may include an inner groove 224-1. The inner groove 224-1 may be an "AF guide ball housing groove". An AF guide ball 810 may be placed in the inner groove 224-1. An inner ball 811 may be placed in the inner groove 224-1. The inner groove 224-1 may be in direct contact with the AF guide ball 810. The inner groove 224-1 may be positioned in the optical axis direction. The inner groove 224-1 may guide the AF guide ball 810 to move in the optical axis direction. The inner groove 224-1 may include multiple grooves. The inner groove 224-1 may include two grooves. The two grooves may be positioned parallel to each other. The two grooves may be positioned diagonally to each other with respect to the optical axis.

[0135] The AF carrier 210 may include an outer groove 224-2. The holder member 220 may include an outer groove 224-2. The outer groove 224-2 may be an "AF guide ball housing groove". An AF guide ball 810 may be placed in the outer groove 224-2. An outer ball 812 may be placed in the outer groove 224-2. The outer groove 224-2 may be in direct contact with the AF guide ball 810. The outer groove 224-2 may be positioned in the optical axis direction. The outer groove 224-2 may guide the AF guide ball 810 to move in the optical axis direction. The outer groove 224-2 may include multiple grooves. The outer groove 224-2 may include two grooves. The two grooves may be positioned parallel to each other. The two grooves may be positioned diagonally to each other with respect to the optical axis. The outer groove 224-2 may be positioned on the opposite side of the inner groove 224-1. The outer groove 224-2 can be formed in a shape corresponding to the inner groove 224-1. The outer groove 224-2 and the inner groove 224-1 can be formed to have the same length in the optical axis direction.

[0136] The AF carrier 210 may include a metal member 225. The holder member 220 may include a metal member 225. The metal member 225 can be coupled to the lower plate 221 of the AF moving part 200. The holder member 220 may include a lower plate having the metal member 225. The metal member 225 may be placed on the holder member 220. The metal member 225 may be insert-injected into the holder member 220. At least a portion of the metal member 225 may be placed on the upper surface of the holder member 220. At least a portion of the metal member 225 may be placed on the lower surface of the holder member 220. At least a portion of the metal member 225 may be exposed on the surface of the holder member 220. The metal member 225 may be placed to reinforce the strength of the holder member 220.

[0137] The metal member 225 may include a hole. A wire 850 can be placed in the hole. The wire 850 can pass through the hole in the metal member 225.

[0138] The metal member 225 may include a first hole 225-1. The first hole 225-1 may be positioned adjacent to the wire 850. The first hole 225-1 may be positioned adjacent to the hole through which the wire 850 passes. The first hole 225-1 may be positioned adjacent to the conductive member connecting the wire 850 and the metal member 225. The conductive member connecting the wire 850 and the metal member 225 can flow into the first hole 225-1. Solder connecting the wire 850 and the metal member 225 can flow into the first hole 225-1. The first hole 225-1 may be formed to have curvature. When viewed from below, the first hole 225-1 may be formed in a U-shape. When viewed from below, the first hole 225-1 may include a curved shape.

[0139] The metal member 225 may include a second hole 225-2. The second hole 225-2 may be located adjacent to the wire 850. The second hole 225-2 may be located adjacent to the hole through which the wire 850 passes. The second hole 225-2 may be located adjacent to the conductive member that connects the wire 850 and the metal member 225. The conductive member that connects the wire 850 and the metal member 225 can flow into the second hole 225-2. The second hole 225-2 may be located on the opposite side of the first hole 225-1 with respect to the wire 850. The second hole 225-2 may be located on the opposite side of the first hole 225-1 with respect to the hole in the metal member 225 through which the wire 850 is located. Solder that connects the wire 850 and the metal member 225 can flow into the second hole 225-2. The second hole 225-2 may extend straight.

[0140] The AF carrier 210 may include a protrusion 226. The holder member 220 may also include a protrusion 226. The protrusion 226 may be formed on the outer surface of the AF carrier 210. The protrusion 226 may project outward from the AF carrier 210. Connecting portions 712 may be positioned on the upper and lower surfaces of the protrusion 226.

[0141] The lens drive device 10 may include a preload member 230. The AF carrier 210 may include a preload member 230. The preload member 230 can be coupled to the upper surface of the holder member 220. The preload member 230 can be coupled to the holder member 220. The preload member 230 can be inserted into the holder member 220 from above and coupled. The preload member 230 can pressurize the OIS guide ball 820. The preload member 230 can contact the OIS guide ball 820. The preload member 230 can directly contact the OIS guide ball 820. The preload member 230 can pressurize the OIS guide ball 820 by being coupled to the holder member 220. The preload member 230 can pressurize a portion of the coil spring 830 by contacting the OIS guide ball 820.

[0142] The preload member 230 can be positioned between the AF moving unit 200 and the base 110 in the optical axis direction. The preload member 230 can be positioned between the AF moving unit 200 and the base 110. The preload member 230 can be positioned between the AF carrier 210 and the base 110.

[0143] The AF carrier 210 may include a projection 231. The preload member 230 may include a projection 231. The projection 231 may be a "projection". The preload member 230 may have a projection 231 that guides the OIS guide ball 820. The projection 231 may be coupled to a groove 222 of the holder member 220. The projection 231 of the preload member 230 may be inserted into the groove 222 of the holder member 220 from below. The projection 231 of the preload member 230 may be positioned in the groove 222 of the holder member 220. At least a portion of the projection 231 of the preload member 230 may be positioned in the groove 222 of the holder member 220. The projection 231 may include multiple projections. The projection 231 may include four projections.

[0144] The AF carrier 210 may include a groove 232. The preloading member 230 may include a groove 232. The groove 232 may be an "OIS guide ball housing groove". The groove 232 may be formed in the projection 231. The groove 232 may be formed on the upper surface of the projection 231. The groove 232 may be formed at the end of the projection 231. The groove 232 may be formed recessed in the upper surface of the projection 231. An OIS guide ball 820 may be placed in the groove 232. The OIS guide ball 820 may be in contact with the groove 232.

[0145] The preloading member 230 may include a main body portion 233. The main body portion 233 can be coupled to the holder member 220. The main body portion 233 may be positioned on the lower surface of the holder member 220. The projection portion 231 may project upward from the main body portion 233.

[0146] The lens drive device 10 may include a cover 240. The AF moving unit 200 may include a cover 240. The cover 240 can be coupled to the AF carrier 210. The cover 240 can be coupled to the upper surface of the AF carrier 210. The cover 240 can be coupled to the AF carrier 210 from above. The cover 240 can be coupled to the upper side of the holder member 220. The cover 240 may include a hook. The hook of the cover 240 can be coupled to the AF carrier 210. The hook of the cover 240 protrudes downward and can be coupled to the side of the AF carrier 210.

[0147] The lens drive unit 10 may include an OIS moving unit 300. The OIS moving unit 300 can be located in the fixed unit 100. The OIS moving unit 300 can be located within the fixed unit 100. The OIS moving unit 300 can be located on the fixed unit 100. The OIS moving unit 300 can be located within the AF moving unit 200. The OIS moving unit 300 can be located on the AF moving unit 200. The OIS moving unit 300 can be located on the lower plate of the AF moving unit 200. The OIS moving unit 300 can be movably positioned. The OIS moving unit 300 can be moved in a direction perpendicular to the optical axis relative to the fixed unit 100 and the AF moving unit 200 by the OIS drive unit. The OIS moving unit 300 can be moved in the x-axis direction by the OIS-x drive unit 500. The OIS moving unit 300 can be moved in the y-axis direction by the OIS-y drive unit 600. The OIS moving unit 300 can move when the OIS is driven.

[0148] The OIS moving section 300 may include a first side and a second side, and a third side and a fourth side, which are located opposite each other. The OIS-x magnet 510 may be located on the first side of the OIS moving section 300. The AF magnet 410 may be located on the third side of the OIS moving section 300, or opposite the third side. That is, the AF magnet 410 may be located in a position corresponding to the third side of the OIS moving section 300. The AF magnet 410 may be located closest to the third side among the first to fourth sides of the OIS moving section 300. The OIS-y magnet 610 may be located on the fourth side of the OIS moving section 300.

[0149] The lens drive unit 10 may include an OIS carrier 310. The OIS moving unit 300 may include an OIS carrier 310. The OIS carrier 310 may be an "OIS holder". The OIS carrier 310 may be a "bobbin". The OIS carrier 310 may be located inside the AF carrier 210. The OIS carrier 310 may be located inside the base 110. The OIS carrier 310 may be located on the base 110. The OIS carrier 310 may be located inside the cover 120. The OIS carrier 310 may be located so as to be movable in a direction perpendicular to the optical axis.

[0150] The OIS carrier 310 may include an outer surface. The OIS carrier 310 may include multiple surfaces. The OIS carrier 310 may include a first surface and a second surface located on opposite sides of each other, and a third surface and a fourth surface located on opposite sides of each other. The AF coil 420 may be positioned between the first surface of the OIS carrier 310 and the AF magnet 410. The OIS-x magnet 510 may be positioned on the third surface of the OIS carrier 310. The OIS-y magnet 610 may be positioned on the second surface of the OIS carrier 310.

[0151] The OIS carrier 310 may include grooves. The grooves may be "elastic member interference prevention grooves". The grooves may be formed on the upper surface of the OIS carrier 310. The grooves may be formed as recesses on the upper surface of the OIS carrier 310. The grooves may be positioned in a location corresponding to the coil spring 830 to prevent interference between the OIS carrier 310 and the coil spring 830.

[0152] The OIS carrier 310 may include a groove 311. The groove 311 may be an "OIS guide ball housing groove". An OIS guide ball 820 may be placed in the groove 311. The groove 311 may be in direct contact with the OIS guide ball 820. The groove 311 may be formed as a recess in the lower surface of the OIS moving part 300. The groove 311 may be formed as a recess in the lower surface of the OIS carrier 310. The groove 311 may be positioned perpendicular to the optical axis. The groove 311 may be recessed in the direction of the optical axis. The groove 311 may include multiple grooves. The groove 311 may include four grooves. The groove 311 may be formed on the lower surface of the OIS carrier 310.

[0153] The OIS carrier 310 may include lateral stoppers. The lateral stoppers can limit the lateral stroke of the OIS carrier 310. That is, when the OIS carrier 310 moves to its maximum extent, the lateral stoppers of the OIS carrier 310 can come into contact with one or more of the AF carrier 210 and the base 110. The lateral stoppers can be formed on the outer surface of the OIS carrier 310. The lateral stoppers can protrude outward from the side of the OIS carrier 310.

[0154] The OIS carrier 310 may include a protrusion 312. The protrusion 312 may protrude from the outer circumferential surface of the OIS moving part 300. The protrusion 312 may protrude from the outer surface of the OIS moving part 300. The protrusion 312 may protrude from the outer circumferential surface of the OIS carrier 310. The protrusion 312 may protrude from the outer surface of the OIS carrier 310. The protrusion 312 may protrude outward from the OIS carrier 310. A coil spring 830 can be coupled to the protrusion 312. A coil spring 830 can be coupled to the lower surface of the protrusion 312.

[0155] The projection 312 may include a hole or groove for coupling with the coil spring 830. A hole or groove may be formed on the lower surface of the projection 312 for positioning a portion of the coil spring 830. The hole or groove of the projection 312 may have a shape corresponding to a portion of the coil spring 830.

[0156] The protrusion 312 may include multiple protrusions. The protrusion 312 may include four protrusions. The protrusion 312 may include four protrusions spaced apart from each other. The protrusion 312 may include first to fourth protrusions. The protrusion 312 may include four protrusions corresponding to the four corners of the OIS moving part 300.

[0157] The OIS carrier 310 may include a avoidance portion 313. The avoidance portion 313 may be formed as a recess on the outer surface of the OIS carrier 310. The avoidance portion 313 may be formed so that the OIS carrier 310 does not interfere with the coil spring 830.

[0158] The OIS carrier 310 may include a groove 313. The groove 313 may be a "lens adhesive receiving groove". The groove 313 may be formed on the inner circumferential surface of the OIS carrier 310. The groove 313 may be formed as a recess on the inner circumferential surface of the OIS carrier 310. Adhesive can be injected between the lens and the OIS carrier 310 through the groove 313. Adhesive for bonding the lens and the OIS carrier 310 can be placed in the groove 313.

[0159] The OIS carrier 310 may include a mounting section. The mounting section may be a "magnetic mounting section." Magnets 510 and 620 may be placed in the mounting section. The mounting section may be formed in a groove, for example.

[0160] The lens drive unit 10 may include a drive unit. The drive unit can move a movable part relative to the fixed part 100. The drive unit may include an AF drive unit 400. The drive unit may include an OIS drive unit. The drive unit may include an OIS-x drive unit 500. The drive unit may include an OIS-y drive unit 600. The drive unit may include a coil and a magnet.

[0161] The lens drive device 10 may include an AF drive unit 400. The AF drive unit 400 can move the AF moving unit 200 in the optical axis direction. The AF drive unit 400 can move the AF carrier 210 in the optical axis direction. The AF drive unit 400 can move the AF carrier 210 in the optical axis direction via electromagnetic force. The AF drive unit 400 may include a coil and a magnet.

[0162] The lens drive device 10 may include an AF magnet 410 and an AF coil 420 that move the AF moving unit 200 in the optical axis direction.

[0163] In the first embodiment of the present invention, the interaction between the AF coil 420 and the AF magnet 410 allows the AF carrier 210 and the OIS carrier 310 to move in the optical axis direction. The AF coil 420, AF carrier 210, and OIS carrier 310 can move together in the optical axis direction.

[0164] The lens drive device 10 may include an AF magnet 410. The AF drive unit 400 may include an AF magnet 410. The AF magnet 410 may be an "AF magnet". The AF magnet 410 may be a permanent magnet. The AF magnet 410 may be placed on the fixing part 100. The AF magnet 410 may be placed on the base 110. The AF magnet 410 may be placed on the cover 120. The AF magnet 410 may be placed on the side plate 122 of the cover 120. The AF magnet 410 may be placed on the outer surface of the base 110. The AF magnet 410 may be placed on the inner surface of the base 110. The AF magnet 410 may be fixed to the base 110. The AF magnet 410 may be coupled to the base 110. The AF magnet 410 may be bonded to the base 110 with adhesive. The AF magnet 410 may be placed inside the cover 120. The AF magnet 410 can interact with the AF coil 420. The AF magnet 410 can interact electromagnetically with the AF coil 420. The AF magnet 410 can be positioned in a position corresponding to the AF coil 420. The AF magnet 410 can face the AF coil 420. The AF magnet 410 can be opposed to the AF coil 420. The AF magnet 410 can overlap the AF coil 420 in a direction perpendicular to the optical axis.

[0165] The AF magnet 410 can be a four-pole magnet. The AF magnet 410 may include a four-pole magnetized magnet. The AF magnet 410 may include a first magnet section including an N pole and a S pole, and a second magnet section including an N pole and a S pole. The first magnet section and the second magnet section may be arranged vertically. The first magnet section and the second magnet section may be spaced apart vertically, with a neutral section positioned between the first magnet section and the second magnet section.

[0166] The lens drive device 10 may include an AF coil 420. The AF drive unit 400 may include an AF coil 420. The AF coil 420 can interact with the AF magnet 410. The AF coil 420 can face the AF magnet 410. The AF coil 420 can be positioned opposite the AF magnet 410. The AF coil 420 can be positioned in a position corresponding to the AF magnet 410. The AF coil 420 can overlap the AF magnet 410 in a direction perpendicular to the optical axis. The AF coil 420 can be positioned on the inner substrate 720. The AF coil 420 can be positioned on the AF carrier 210. The AF coil 420 can be positioned on the AF moving unit 200.

[0167] In the first embodiment of the present invention, the AF coil 420 can move in the optical axis direction. The AF coil 420 can move in the optical axis direction by interaction with the AF magnet 410. The AF coil 420 can move together with the AF moving unit 200. The AF coil 420 can move in the optical axis direction together with the AF moving unit 200. During the AF driving process, the AF coil 420 can move in the optical axis direction together with the AF moving unit 200. The AF coil 420 can be positioned on the AF moving unit 200. The AF coil 420 can be fixed to the AF moving unit 200. The AF coil 420 can be coupled to the AF moving unit 200.

[0168] The lens drive device 10 may include an AF sensor 430. The AF drive unit 400 may include an AF sensor 430. The AF sensor 430 may be a Hall sensor. The AF sensor 430 may be located on the inner substrate 720. The AF sensor 430 may sense an AF magnet 410. The AF sensor 430 may sense the movement of the AF magnet 410. The amount of movement or position of the AF magnet 410 sensed by the AF sensor 430 may be used for autofocus drive feedback.

[0169] The AF sensor 430 can be a driver IC. The driver IC can include a sensing unit. The sensing unit can include a Hall element (Hall IC). The driver IC can be electrically connected to the AF coil 420. The driver IC can supply current to the AF coil 420. The AF sensor 430 can be placed inside the AF coil 420.

[0170] The AF sensor 430 can overlap the neutral portion of the AF magnet 410 in a direction perpendicular to the optical axis. In a modified configuration, the AF sensor 430 can be positioned outside the AF coil 420. The AF sensor 430 can overlap the AF coil 420 in the direction of the optical axis. The AF sensor 430 can overlap the AF coil 420 in a direction perpendicular to the optical axis.

[0171] The lens drive device 10 may include an AF yoke 440. The AF yoke 440 may be positioned in a location corresponding to the AF magnet 410. An attractive force may act between the AF yoke 440 and the AF magnet 410. This attractive force between the AF yoke 440 and the AF magnet 410 allows the AF guide ball 810 to be maintained in contact with the base 110 and the AF carrier 210. The AF yoke 440 may be positioned on the inner substrate 720. The AF yoke 440 may be positioned inside the AF coil 420.

[0172] The lens drive device 10 may include an OIS drive unit. The OIS drive unit can move the OIS moving unit 300 in a direction perpendicular to the optical axis. The OIS drive unit can move the OIS carrier 310 in a direction perpendicular to the optical axis. The OIS drive unit can move the OIS carrier 310 in a direction perpendicular to the optical axis via electromagnetic force.

[0173] The lens drive unit 10 may include an OIS-x drive unit 500. The OIS drive unit may include an OIS-x drive unit 500. The OIS-x drive unit 500 can move the OIS carrier 310 in the x-axis direction perpendicular to the optical axis. The OIS-x drive unit 500 can move the OIS carrier 310 in the x-axis direction perpendicular to the optical axis via electromagnetic force. The OIS-x drive unit 500 may include a coil and a magnet.

[0174] The lens drive device 10 may include an OIS-x magnet 510 and an OIS-x coil 520 that move the OIS moving unit 300 in the x-axis direction perpendicular to the optical axis direction.

[0175] In the first embodiment of the present invention, the OIS-x magnet 510 and the OIS-x coil 520 can move the OIS moving unit 300 in a first direction perpendicular to the optical axis direction. At this time, the first direction can be in the x-axis direction. Through the interaction of the OIS-x coil 520 and the OIS-x magnet 510, the OIS carrier 310 can move in the x-axis direction perpendicular to the optical axis direction. The OIS-x magnet 510 and the OIS carrier 310 can move together in the x-axis direction.

[0176] The lens drive unit 10 may include an OIS-x magnet 510. The OIS drive unit may include an OIS-x magnet 510. The OIS-x magnet 510 may be an "OIS-x magnet". The OIS-x magnet 510 may be a permanent magnet. The OIS-x magnet 510 may be placed in the OIS moving unit 300. The OIS-x magnet 510 may be separated from the AF magnet 410. The OIS-x magnet 510 may be placed in the OIS carrier 310. The OIS-x magnet 510 may be placed on the outer surface of the OIS carrier 310. The OIS-x magnet 510 may be fixed to the OIS carrier 310. The OIS-x magnet 510 may be coupled to the OIS carrier 310. The OIS-x magnet 510 may be bonded to the OIS carrier 310 with adhesive. The OIS-x magnet 510 may be placed inside the cover 120. The OIS-x magnet 510 can interact with the OIS-x coil 520. The OIS-x magnet 510 can interact electromagnetically with the OIS-x coil 520. The OIS-x magnet 510 can be positioned in a position corresponding to the OIS-x coil 520. The OIS-x magnet 510 can face the OIS-x coil 520. The OIS-x magnet 510 can be opposed to the OIS-x coil 520. The OIS-x magnet 510 can overlap the OIS-x coil 520 in a direction perpendicular to the optical axis. The OIS-x magnet 510 can overlap the OIS-x coil 520 in the x-axis direction. The OIS-x magnet 510 can move in the x-axis direction perpendicular to the optical axis. The OIS-x magnet 510 can be a two-pole magnet. The OIS-x magnet 510 can include a two-pole magnetized magnet. The OIS-x magnet 510 can include a north pole and a south pole.

[0177] The lens drive unit 10 may include an OIS-x coil 520. The OIS drive unit may include an OIS-x coil 520. The OIS-x coil 520 can interact with the OIS-x magnet 510. The OIS-x coil 520 can move the OIS-x magnet 510 in the x-axis direction perpendicular to the optical axis. The OIS-x coil 520 can move the OIS-x magnet 510 in the x-axis direction through interaction with the OIS-x magnet 510. The OIS-x coil 520 can face the OIS-x magnet 510. The OIS-x coil 520 can face the OIS-x magnet 510. The OIS-x coil 520 can be positioned in a position corresponding to the OIS-x magnet 510. The OIS-x coil 520 can overlap the OIS-x magnet 510 in a direction perpendicular to the optical axis. The OIS-x coil 520 can be placed on the inner substrate 720. The OIS-x coil 520 can be placed on the AF carrier 210.

[0178] In the first embodiment of the present invention, the OIS-x coil 520 can move together with the AF moving unit 200. The OIS-x coil 520 can move in the optical axis direction together with the AF moving unit 200. During the AF driving process, the OIS-x coil 520 can move in the optical axis direction together with the AF moving unit 200. The OIS-x coil 520 can be positioned on the AF moving unit 200. The OIS-x coil 520 can be fixed to the AF moving unit 200.

[0179] The OIS-x coil 520 can be coupled to the AF moving part 200. When current is applied to the OIS-x coil 520, the OIS-x magnet 510 can move away from or towards the OIS-x coil 520 in the x-axis direction.

[0180] The lens drive unit 10 may include an OIS-x sensor 530. The OIS drive unit may include an OIS-x sensor 530. The OIS-x sensor 530 may be located on the inner substrate 720. The OIS-x sensor 530 may include a Hall sensor. The OIS-x sensor 530 may sense the OIS-x magnet 510. The OIS-x sensor 530 may sense the magnetic force of the OIS-x magnet 510. The OIS-x sensor 530 may be located below the OIS-x magnet 510. The OIS-x sensor 530 may overlap the OIS-x magnet 510 in the optical axis direction. In a modified example, the OIS-x sensor 530 may be located inside the OIS-x coil 520. The OIS-x sensor 530 may overlap the OIS-x coil 520 in the optical axis direction. The OIS-x sensor 530 can overlap the OIS-x coil 520 in a direction perpendicular to the optical axis. The OIS-x sensor 530 can face the OIS-x magnet 510. The OIS-x sensor 530 can be positioned in a location corresponding to the OIS-x magnet 510. The OIS-x sensor 530 can sense the movement of the OIS-x magnet 510. The amount of movement or position of the OIS-x magnet 510 sensed by the OIS-x sensor 530 can be used for feedback to drive image stabilization in the x-axis direction.

[0181] The lens drive device 10 may include an OIS-x yoke 540. The OIS-x yoke 540 may be positioned on the OIS-x magnet 510. The OIS-x yoke 540 may be positioned between the OIS-x magnet 510 and the OIS carrier 310. The OIS-x yoke 540 can prevent magnetic flux leakage from the OIS-x magnet 510 and improve the interaction force with the OIS-x coil 520.

[0182] The lens drive unit 10 may include an OIS-y drive unit 600. The OIS drive unit may include an OIS-y drive unit 600. The OIS-y drive unit 600 can move the OIS carrier 310 in the y-axis direction perpendicular to the optical axis and all x-axis directions. The OIS-y drive unit 600 can move the OIS carrier 310 in the y-axis direction perpendicular to the optical axis and all x-axis directions via electromagnetic force. The OIS-y drive unit 600 may include a coil and a magnet.

[0183] The lens drive device 10 may include an OIS-y magnet 610 and an OIS-y coil 620 that move the OIS moving unit 300 in the y-axis direction perpendicular to the optical axis direction and the x-axis direction.

[0184] In the first embodiment of the present invention, the OIS-y magnet 610 and the OIS-y coil 620 can move the OIS moving unit 300 in a second direction perpendicular to the optical axis direction and the first direction. At this time, the second direction can be the y-axis direction. Due to the interaction between the OIS-y coil 620 and the OIS-y magnet 610, the OIS carrier 310 can move in the y-axis direction which is perpendicular to the optical axis direction and the x-axis direction. The OIS-y magnet 610 and the OIS carrier 310 can move together in the y-axis direction. The OIS-y magnet 610 can overlap with the AF magnet 410 in the second direction. The OIS-y magnet 610 can overlap with the AF magnet 410 in the y-axis direction.

[0185] The lens drive unit 10 may include an OIS-y magnet 610. The OIS-y drive unit 600 may include an OIS-y magnet 610. The OIS-y magnet 610 may be an "OIS-y magnet". The OIS-y magnet 610 may be a permanent magnet. The OIS-y magnet 610 may be placed on the OIS moving unit 300. The OIS-y magnet 610 may be separated from the OIS-x magnet 510. The OIS-y magnet 610 may be separated from the AF magnet 410. The OIS-y magnet 610 may be placed on the OIS carrier 310. The OIS-y magnet 610 may be placed on the outer surface of the OIS carrier 310. The OIS-y magnet 610 may be fixed to the OIS carrier 310. The OIS-y magnet 610 may be coupled to the OIS carrier 310. The OIS-y magnet 610 may be bonded to the OIS carrier 310 with adhesive. The OIS-y magnet 610 can be placed inside the cover 120. The OIS-y magnet 610 can interact with the OIS-y coil 620. The OIS-y magnet 610 can interact electromagnetically with the OIS-y coil 620. The OIS-y magnet 610 can be positioned in a position corresponding to the OIS-y coil 620. The OIS-y magnet 610 can face the OIS-y coil 620. The OIS-y magnet 610 can be opposed to the OIS-y coil 620. The OIS-y magnet 610 can overlap the OIS-y coil 620 in a direction perpendicular to the optical axis. The OIS-y magnet 610 can overlap the OIS-y coil 620 in the y-axis direction. The OIS-y magnet 610 can move in the y-axis direction.

[0186] The OIS-y magnet 610 can be a two-pole magnet. The OIS-y magnet 610 can be a two-pole magnetized magnet. The OIS-y magnet 610 can have a north pole and a south pole.

[0187] The lens drive unit 10 may include an OIS-y coil 620. The OIS-y drive unit 600 may include an OIS-y coil 620. The OIS-y coil 620 can interact with the OIS-y magnet 610. The OIS-y coil 620 can be positioned on the opposite side of the AF coil 420 with respect to the optical axis. The OIS-y coil 620 can move the OIS-y magnet 610 in the y-axis direction, which is perpendicular to the optical axis and the x-axis. The OIS-y coil 620 can move the OIS-y magnet 610 in the y-axis direction through interaction with the OIS-y magnet 610. The OIS-y coil 620 can face the OIS-y magnet 610. The OIS-y coil 620 can face the OIS-y magnet 610. The OIS-y coil 620 can be positioned in a position corresponding to the OIS-y magnet 610. The OIS-y coil 620 can overlap the OIS-y magnet 610 in a direction perpendicular to the optical axis. The OIS-y coil 620 can be placed on the inner substrate 720. The OIS-y coil 620 can be placed on the AF carrier 210.

[0188] In the first embodiment of the present invention, the OIS-y coil 620 can move together with the AF moving unit 200. The OIS-y coil 620 can move in the optical axis direction together with the AF moving unit 200. During the AF driving process, the OIS-y coil 620 can move in the optical axis direction together with the AF moving unit 200. The OIS-y coil 620 can be positioned on the AF moving unit 200. The OIS-y coil 620 can be fixed to the AF moving unit 200. The OIS-y coil 620 can be coupled to the AF moving unit 200.

[0189] When current is applied to the OIS-y coil 620, the OIS-y magnet 610 can move away from or closer to the OIS-y coil 620 in the y-axis direction.

[0190] The lens drive unit 10 may include an OIS-y sensor 630. The OIS-y drive unit 600 may include an OIS-y sensor 630. The OIS-y sensor 630 may be located on the inner substrate 720. The OIS-y sensor 630 may include a Hall sensor. The OIS-y sensor 630 may sense the OIS-y magnet 610. The OIS-y sensor 630 may sense the magnetic force of the OIS-y magnet 610. The OIS-y sensor 630 may be located below the OIS-y magnet 610. The OIS-y sensor 630 may overlap the OIS-y magnet 610 in the optical axis direction. The OIS-y sensor 630 may overlap the OIS-y magnet 610 in a direction perpendicular to the optical axis. In a modified example, the OIS-y sensor 630 may be located inside the OIS-y coil 620. The OIS-y sensor 630 can overlap the OIS-y coil 620 in the optical axis direction. The OIS-y sensor 630 can face the OIS-y magnet 610. The OIS-y sensor 630 can be positioned in a location corresponding to the OIS-y magnet 610. The OIS-y sensor 630 can sense the movement of the OIS-y magnet 610. The amount of movement or position of the OIS-y magnet 610 sensed by the OIS-y sensor 630 can be used for feedback of the image stabilization drive in the y-axis direction.

[0191] The lens drive device 10 may include an OIS-y yoke 640. The OIS-y yoke 640 may be positioned on the OIS-y magnet 610. The OIS-y yoke 640 may be positioned between the OIS-y magnet 610 and the OIS carrier 310. The OIS-y yoke 640 can prevent magnetic flux leakage from the OIS-y magnet 610 and improve the interaction force with the OIS-y coil 620.

[0192] From the above, the AF magnet 410, AF coil 420, OIS-y magnet 610, and OIS-y coil 620 can be sequentially arranged on a virtual straight line. When viewed from above, the AF magnet 410, AF coil 420, OIS-y magnet 610, and OIS-y coil 620 can be sequentially arranged on a virtual straight line. When viewed from above, the AF magnet 410, AF coil 420, OIS-y magnet 610, and OIS-y coil 620 can be sequentially arranged. When viewed from above, the AF magnet 410, AF coil 420, OIS-y magnet 610, and OIS-y coil 620 can be sequentially arranged in the y-axis direction. When viewed from above, the AF magnet 410, AF coil 420, OIS-y magnet 610, and OIS-y coil 620 can overlap in the y-axis direction.

[0193] The lens drive device 10 may include substrates 710 and 720. Substrates 710 and 720 may include flexible printed circuit boards (FPCBs). Substrates 710 and 720 can be electrically connected to coils 420, 520, and 620. Substrates 710 and 720 can be electrically connected to sensors 430, 530, and 630.

[0194] The lens drive device 10 may include an outer substrate 710. The outer substrate 710 may be placed on the base 110. The outer substrate 710 may be electrically connected to coils 420, 520, and 620. The outer substrate 710 may be electrically connected to sensors 430, 530, and 630. The outer substrate 710 may connect the AF carrier 210 to the base 110. The outer substrate 710 may elastically connect the AF carrier 210 to the base 110. The outer substrate 710 may connect the fixing part 100 to the inner substrate 720. The outer substrate 710 may support the AF carrier 210 so that it is movable relative to the base 110. The outer substrate 710 may guide the AF carrier 210 to move in the optical axis direction relative to the base 110. The outer substrate 710 may include a flexible substrate. The outer substrate 710 may include an FPCB (flexible Printed Circuit Board). The outer substrate 710 may include an elastic portion. The outer substrate 710 may include an elastic member. The outer substrate 710 may include an outer portion 711 that is positioned on the fixing portion 100 and a connecting portion 712 that extends from the outer portion 711 and connects to the inner substrate 720.

[0195] The outer substrate 710 may include an outer portion 711. The outer portion 711 may be positioned on the base 110. The outer portion 711 may be formed to wrap around the sides of the base 110. The outer portion 711 may be positioned on three sides of the base 110. The outer portion 711 may include two terminal portions. The two terminal portions may be positioned opposite each other with respect to the optical axis. The terminal portion may include terminal 711-1.

[0196] The outer substrate 710 may include terminal 711-1. The outer portion 711 of the outer substrate 710 may include terminal 711-1. Terminal 711-1 can be electrically connected to terminal 712-1. Terminal 711-1 can be located at the lower end of the base 110. Terminal 711-1 can be coupled to the printed circuit board 50. Terminal 711-1 can be coupled to the terminals of the printed circuit board 50 by solder. Terminal 711-1 can be coupled to the terminals of the printed circuit board 50 via a conductive member. Terminal 711-1 can be connected to the terminals of the printed circuit board 50. Terminal 711-1 can be electrically connected to the terminals of the printed circuit board 50.

[0197] The outer substrate 710 may include a connecting portion 712. The connecting portion 712 may be an "extension." The connecting portion 712 may be a "leg." The connecting portion 712 may extend from the outer portion 711. At least a portion of the connecting portion 712 may move with the AF carrier 210. The extension may extend from the outer portion 711. At least a portion of the extension may move with the AF carrier 210. At least a portion of the connecting portion 712 may be positioned perpendicular to the optical axis. The connecting portion 712 of the outer substrate 710 may be coupled to the inner substrate 720 so that the inner substrate 720 is movable in the optical axis direction. At least a portion of the connecting portion 712 may be positioned parallel to the optical axis direction.

[0198] The connecting portion 712 may include multiple connecting portions. The connecting portion 712 may include a first connecting portion and a second connecting portion. The second connecting portion may be positioned below the first connecting portion.

[0199] The outer substrate 710 may include terminal 712-1. The connecting portion 712 of the outer substrate 710 may include terminal 712-1. Terminal 712-1 can be coupled to terminal 721-1 of the inner substrate 720. Terminal 712-1 of the outer substrate 710 can be coupled to terminal 721-1 of the inner substrate 720 by solder. Terminal 712-1 of the outer substrate 710 can be coupled to terminal 721-1 of the inner substrate 720 via a conductive member. Terminal 712-1 of the outer substrate 710 can be connected to terminal 721-1 of the inner substrate 720. Terminal 712-1 of the outer substrate 710 can be electrically connected to terminal 721-1 of the inner substrate 720.

[0200] The outer substrate 710 may include a bent portion 712-2. The bent portion 712-2 may be formed on the connecting portion 712. The bent portion 712-2 may be formed on the first connecting portion and the second connecting portion, respectively. The bent portion 712-2 may include a shape that is bent at least twice. The bent portion 712-2 may include a U-shaped bend. The bent portion 712-2 may include a rounded shape. The bent portion 712-2 may include a portion that is positioned parallel to the optical axis.

[0201] Hereinafter, either "terminal 711-1" or "terminal 712-1" of the outer circuit board 710 will be referred to as the "first terminal," and the other one as the "second terminal."

[0202] The lens drive device 10 may include an inner substrate 720. The inner substrate 720 may be electrically connected to coils 420, 520, and 620. The inner substrate 720 may be electrically connected to sensors 430, 530, and 630. The inner substrate 720 may be placed on the AF moving part 200. The inner substrate 720 may be placed on the AF carrier 210. The inner substrate 720 may be fixed to the AF carrier 210. The inner substrate 720 may be coupled to the AF carrier 210. The inner substrate 720 may be bonded to the AF carrier 210 with adhesive. The inner substrate 720 may include a flexible substrate. The inner substrate 720 may include an FPCB (flexible printed circuit board). The inner substrate 720 may include an elastic portion. The inner substrate 720 may include an elastic member.

[0203] The inner substrate 720 can be coupled to the lower surface of the holder member 220. The preloading member 230 can be coupled to the inner substrate 720.

[0204] The inner substrate 720 may include side plate portions 721. The side plate portions 721 may be positioned on the side of the AF carrier 210. The side plate portions 721 may be positioned on the outer surface of the AF carrier 210. In other embodiments, the side plate portions 721 may be positioned on the inner surface of the AF carrier 210. The side plate portions 721 of the inner substrate 720 may include multiple parts. The side plate portions 721 may include first to fourth parts.

[0205] The inner substrate 720 may include a first portion. The first portion may be located on the AF carrier 210. The AF coil 420 may be located on the first portion of the inner substrate 720. The AF sensor 430 may be located on the first portion of the inner substrate 720. The AF yoke 440 may be located on the first portion of the inner substrate 720.

[0206] The inner substrate 720 may include a second portion. The second portion may be located on the opposite side of the first portion. The second portion may be located on the AF carrier 210. The second portion may be located on the second side of the AF carrier 210. The OIS-y coil 620 may be located on the second portion of the inner substrate 720. The OIS-y sensor 630 may be located on the second portion of the inner substrate 720. More specifically, the OIS-y sensor 630 may be located on the lower plate portion 722 which is folded and located on the upper side of the second portion of the inner substrate 720. The OIS-y sensor 630 may be located on the lower surface of the lower plate portion 722.

[0207] The inner substrate 720 may include a third portion. The third portion may be positioned on the AF carrier 210. The third portion may be positioned on the third side of the AF carrier 210. The OIS-x coil 520 may be positioned on the third portion of the inner substrate 720. The OIS-x sensor 530 may be positioned on the third portion of the inner substrate 720. More specifically, the OIS-x sensor 530 may be positioned on the lower plate portion 722 which is folded and positioned on the upper side of the third portion of the inner substrate 720. The OIS-x sensor 530 may be positioned on the lower surface of the lower plate portion 722.

[0208] The inner substrate 720 may include a fourth portion. The fourth portion may be located on the opposite side of the third portion. The fourth portion may be located on the AF carrier 210. The fourth portion may be located on the fourth side of the AF carrier 210. The inner substrate 720 may include terminals 721-1.

[0209] Terminal 721-1 can be located in the fourth portion of the inner substrate 720. Terminal 721-1 can be electrically connected to coils 420, 520, and 620. Terminal 721-1 can be electrically connected to sensors 430, 530, and 630. Terminal 721-1 can be coupled to terminal 712-1 of the outer substrate 710.

[0210] The inner substrate 720 may include terminal 722-1. Terminal 722-1 can be positioned on the lower plate portion 722 of the inner substrate 720. Terminal 722-1 can be electrically connected to coils 420, 520, and 620. Terminal 722-1 can be electrically connected to sensors 430, 530, and 630. Terminal 722-1 can be coupled to terminal 712-1 of the outer substrate 710.

[0211] The inner substrate 720 may include a hole 722-2. Through the hole 722-2, terminal 722-1 of the inner substrate 720 can be soldered to terminal 712-1 of the outer substrate 710.

[0212] The lens drive device 10 may include a guide member. The guide member may include a ball. The guide member may include a pin. The guide member may include a cylindrical member. The guide member can guide the movement of the movable part relative to the fixed part 100 in a specific direction.

[0213] The lens drive device 10 may include an AF guide ball 810. The AF guide ball 810 can guide the movement of the AF moving part 200 relative to the fixed part 100 in the optical axis direction. The AF guide ball 810 can guide the movement of the AF carrier 210 relative to the base 110 in the optical axis direction. The AF guide ball 810 can be positioned between the fixed part 100 and the AF moving part 200. The AF guide ball 810 can be positioned between the base 110 and the AF carrier 210. The AF guide ball 810 can be positioned between the housing and the base 110. The AF guide ball 810 can be positioned between the base 110 and the AF carrier 210 in the x direction. Alternatively, the AF guide ball 810 can be positioned between the base 110 and the AF carrier 210 in the y direction. The AF guide ball 810 can be positioned in a groove of the base 110. The AF guide ball 810 can be positioned in a groove of the AF carrier 210. The AF guide ball 810 can be spherical. The AF guide ball 810 can be made of metal. Grease can be applied to the surface of the AF guide ball 810.

[0214] The AF guide ball 810 can be positioned at the first corner of the base 110. The AF guide ball 810 can be positioned at the second corner diagonally opposite to the first corner of the base 110. The AF guide ball 810 can be positioned at both the first and second corners of the base 110. The first and second corner regions of the fixed section 100 can be positioned diagonally opposite to each other with respect to the optical axis. The AF guide ball 810 can be positioned at both the first and second corner regions of the fixed section 100. Two sets of AF guide balls 810 can be positioned at both the first and second corners of the base 110. In this case, one set may contain four balls. The two sets can be positioned on opposite sides of the column portion of the AF carrier 210.

[0215] In a modified configuration, the AF guide ball 810 can be positioned at the first and third corners. Alternatively, the AF guide ball 810 can be positioned at the first and fourth corners. In other words, the AF guide ball 810 does not have to be positioned diagonally.

[0216] When viewed from above, the AF guide ball 810 may include a first unit ball positioned in the first corner region of the fixed portion 100 and a second unit ball positioned in the second corner region diagonally opposite the first corner region of the fixed portion 100. In this case, the OIS guide ball 820 may include a first guide member and a second guide member positioned diagonally apart from each other and between the first unit ball and the second unit ball of the AF guide ball 810 when viewed from above.

[0217] When viewed from above, the AF guide ball 810 may include a first unit ball and a second unit ball positioned in the first corner region of the fixed part 100, and a third unit ball and a fourth unit ball positioned in the second corner region diagonally opposite the first corner region of the fixed part 100. Two sets of AF guide balls 810 can be placed in each corner.

[0218] The AF guide ball 810 may include balls that overlap with the OIS guide ball 820 in a direction perpendicular to the optical axis. At least a portion of the AF guide ball 810 can overlap with the OIS guide ball 820.

[0219] The AF guide ball 810 can include an inner ball 811. The inner ball 811 can be arranged on the column portion 111 of the base 110. The inner ball 811 can be arranged in the inner groove 111-1 of the base 110. The inner ball 811 can be arranged in the inner groove 224-1 of the AF carrier 210. The inner ball 811 can be arranged in the inner groove 224-1 of the AF moving part 200. The inner ball 811 can be arranged in the inner groove 111-1 of the base 110 and the inner groove 224-1 of the AF carrier 210. The inner ball 811 can be arranged between the inner groove 111-1 of the base 110 and the inner groove 224-1 of the AF carrier 210. The inner ball 811 can be arranged between the AF moving part 200 and the column portion 111 of the fixed part 100.

[0220] The AF guide ball 810 can include an outer ball 812. The outer ball 812 can be arranged on the outer wall portion 112 of the base 110. The outer ball 812 can be arranged in the outer groove 112-1 of the base 110. The outer ball 812 can be arranged in the outer groove 224-2 of the AF carrier 210. The outer ball 812 can be arranged in the outer groove 112-1 of the base 110 and the outer groove 224-2 of the AF carrier 210. The outer ball 812 can be arranged between the outer groove 112-1 of the base 110 and the outer groove 224-2 of the AF carrier 210. The outer ball 812 can be arranged between the outer groove 112-1 of the fixed part 100 and the outer groove 224-2 of the AF moving part 200. The outer ball 812 can be arranged between the AF moving part 200 and the outer wall portion 112 of the fixed part 100.

[0221] The inner balls 811 can include a plurality of inner balls 811. The plurality of inner balls 811 can be arranged in the optical axis direction. The inner balls 811 can include four inner balls 811. The inner balls 811 can include the first to fourth inner balls. Two of the four inner balls 811 may have a larger diameter, and the remaining two may have a smaller diameter. The two balls with a larger diameter can be arranged at the topmost and bottommost positions. That is, two balls with a smaller diameter can be arranged between the two balls with a larger diameter.

[0222] The inner balls 811 can include the innermost upper-stage ball 811-1. The innermost upper-stage ball 811-1 can be arranged at the highest position among the inner balls 811. The innermost upper-stage ball 811-1 can be arranged closest to the upper plate 121 of the cover 120 among the inner balls 811. The inner balls 811 can include the innermost lower-stage ball 811-2. The innermost lower-stage ball 811-2 can be arranged at the lowest position among the inner balls 811. The innermost lower-stage ball 811-2 can be arranged closest to the lower plate portion of the base 110 among the inner balls 811. The plurality of inner balls 811 can include balls having a smaller diameter than each of the innermost upper-stage ball 811-1 and the innermost lower-stage ball 811-2. The plurality of inner balls 811 can include balls arranged between the innermost upper-stage ball 811-1 and the innermost lower-stage ball 811-2.

[0223] The outer ball 812 can include multiple outer balls 812. Multiple outer balls 812 can be arranged in the optical axis direction. The outer ball 812 can include four outer balls 812. The outer ball 812 can include first to fourth outer balls. Two of the four outer balls 812 may have a large diameter, and the remaining two may have a small diameter. The two balls with larger diameters can be placed at the top and bottom. That is, two balls with smaller diameters can be placed between the two balls with larger diameters. The outer ball 812 can include an outer top layer ball 812-1. The outer top layer ball 812-1 can be placed at the highest position among the outer balls 812. The outer top layer ball 812-1 can be placed closest to the top plate 121 of the cover 120 among the outer balls 812. The outer ball 812 can include an outer bottom layer ball 812-2. The outer bottom layer ball 812-2 can be placed at the lowest position among the outer balls 812. The outermost bottom layer cardboard 812-2 can be positioned closest to the bottom plate portion of the base 110 among the outer layers 812. Multiple outer layers 812 may include balls with a smaller diameter than the outer top layer cardboard 812-1 and the outermost bottom layer cardboard 812-2, respectively. Multiple outer layers 812 may include balls positioned between the outer top layer cardboard 812-1 and the outermost bottom layer cardboard 812-2.

[0224] The AF guide ball 810 may include a plurality of balls arranged in the direction of the optical axis. In this case, the plurality of balls may include uppermost balls 811-1, 812-1 which are positioned at the highest point, and lowermost balls 811-2, 812-2 which are positioned at the lowest point. The height at which the elastic member 920 pressurizes the plate member 910 can be positioned between the heights of the uppermost balls 811-1, 812-1 and the heights of the lowermost balls 811-2, 812-2.

[0225] The lens drive device 10 may include an OIS guide ball 820. The OIS guide ball 820 can guide the movement of the OIS carrier 310 relative to the AF carrier 210 in a direction perpendicular to the optical axis. The OIS guide ball 820 can be positioned between the AF moving unit 200 and the OIS moving unit 300. The OIS guide ball 820 can be positioned between the lower plate of the AF moving unit 200 and the OIS moving unit 300. The OIS guide ball 820 can be positioned between the AF carrier 210 and the OIS carrier 310. The OIS guide ball 820 can be positioned between the AF carrier 210 and the lower side of the OIS carrier 310. The OIS guide ball 820 can be positioned between the housing and the bobbin. The OIS guide ball 820 can be positioned between the housing and the lower side of the bobbin. The OIS guide ball 820 can be positioned between the AF carrier 210 and the OIS carrier 310 in the optical axis direction.

[0226] The OIS guide ball 820 can be placed on the protrusion 231 of the preload member 230. The OIS guide ball 820 can be placed on the groove 232 of the protrusion 231. The OIS guide ball 820 can be placed on the groove 311 of the OIS moving part 300. The OIS guide ball 820 can be placed between the groove 232 of the protrusion 231 of the AF moving part 200 and the groove 311 of the OIS moving part 300.

[0227] The OIS guide ball 820 can be positioned between the preloading member 230 of the AF carrier 210 and the OIS carrier 310. The OIS guide ball 820 can be pressurized between the AF carrier 210 and the OIS carrier 310 by the pressure applied by the coil spring 830. The preloading member 230 can pressurize the OIS guide ball 820 upward during the process of being coupled to the holder member 220. The preloading member 230 can pressurize the OIS guide ball 820 toward the OIS carrier 310 during the process of being coupled to the holder member 220. At this time, the restoring force of the coil spring 830 causes the OIS carrier 310 to pressurize the OIS guide ball 820 toward the preloading member 230. Therefore, the OIS guide ball 820 can be pressurized between the preloading member 230 and the OIS carrier 310.

[0228] The OIS guide ball 820 can guide the OIS moving unit 300 to move in the x-axis and y-axis directions. The OIS guide ball 820 can guide the movement of the OIS moving unit 300 in the x-axis and y-axis directions. The OIS guide ball 820 can guide the OIS carrier 310 to move in the x-axis and y-axis directions perpendicular to the optical axis direction relative to the AF carrier 210. In other words, the OIS guide ball 820 can guide the OIS carrier 310 to move in the x-axis and y-axis directions. In other words, the OIS guide ball 820 can guide movement in all directions, both x-axis and y-axis. For reference, compared to a comparative example in which a ball for guiding the x-axis direction and a ball for guiding the y-axis direction are provided separately, the size of the lens drive device 10 can be minimized in the first embodiment of the present invention, in which the ball for guiding the x-axis direction and the ball for guiding the y-axis direction are provided integrally. In particular, the height of the lens drive device 10 in the optical axis direction can be reduced. This can minimize the height that protrudes from the smartphone, i.e., the shoulder height. The OIS guide ball 820 can contain multiple balls. The OIS guide ball 820 can contain four balls.

[0229] In a modified configuration, the OIS guide ball 820 may include separate balls for guiding x-axis drive and y-axis drive.

[0230] The lens drive device 10 may include an elastic member. The elastic member may be formed to support the OIS drive. The elastic member may support the movement of the OIS moving part 300. The elastic member may be a "support member". The elastic member may be formed to pressurize the OIS guide ball 820. The elastic member may be a "pressurizing member". The elastic member may be formed to guide the OIS-x axis drive and OIS-y axis drive solely by the OIS guide ball 820. The elastic member may be elastic. The elastic member may be made of metal.

[0231] The elastic member can pressurize the OIS guide ball 820 between the AF moving part 200 and the OIS moving part 300. The elastic member can pressurize the OIS moving part 300 in the direction of the AF moving part 200. The elastic member can pressurize the AF moving part 200 in the direction of the OIS moving part 300.

[0232] The lens drive device 10 may include a coil spring 830. The coil spring 830 may be elastic. The coil spring 830 can connect the AF moving part 200 and the OIS moving part 300. The coil spring 830 can connect the protruding part 312 of the OIS moving part 300 and the AF moving part 200. The coil spring 830 can connect the OIS moving part 300 and the lower plate 221 of the AF moving part 200. The coil spring 830 can connect the protruding part 312 of the OIS moving part 300 and the lower plate 221 of the AF moving part 200. The coil spring 830 can connect the OIS carrier 310 and the AF carrier 210. The coil spring 830 can connect the OIS carrier 310 and the holder member 220.

[0233] The coil spring 830 can connect the first portion of the AF moving section 200 and the first portion of the OIS moving section 300. In this case, the first portion of the AF moving section 200 and the first portion of the OIS moving section 300 can overlap in the direction of the optical axis. The coil spring 830 can be arranged to be elongated in the direction of the optical axis.

[0234] The coil spring 830 can connect the metal member 225 of the OIS moving part 300 and the AF moving part 200.

[0235] The coil spring 830 can be fixed to the OIS moving part 300 with adhesive. The coil spring 830 can be bonded to the metal member 225 by solder. The coil spring 830 can be soldered to the metal member 225. The coil spring 830 can be bonded to the metal member 225 by a conductive member.

[0236] The metal member 225 may include a hole or groove for connecting with the coil spring 830. The metal member 225 may include a hole 225-1 through which the coil spring 830 passes. The metal member 225 may include an additional U-shaped hole 225-2 formed adjacent to the hole 225-1 through which the coil spring 830 passes. One of the holes 225-1 and 225-2 may be called the "first hole" and the other the "second hole".

[0237] The upper end of the coil spring 830 can be coupled to the OIS moving part 300. The upper end of the coil spring 830 can be connected to the OIS moving part 300. The upper end of the coil spring 830 can be positioned on the OIS moving part 300. The upper end of the coil spring 830 can be in contact with the OIS moving part 300. The upper end of the coil spring 830 can be fixed to the OIS moving part 300.

[0238] The lower end of the coil spring 830 can be coupled to the AF moving part 200. The lower end of the coil spring 830 can be connected to the AF moving part 200. The lower end of the coil spring 830 can be positioned with the AF moving part 200. The lower end of the coil spring 830 can be in contact with the AF moving part 200. The lower end of the coil spring 830 can be fixed with the AF moving part 200.

[0239] The coil spring 830 can be formed so that the AF moving part 200 and the OIS moving part 300 pressurize the OIS guide ball 820. The coil spring 830 allows the OIS guide ball 820 to be pressurized between the AF moving part 200 and the OIS moving part 300. The coil spring 830 allows the OIS guide ball 820 to be in close contact with the AF moving part 200 and the OIS moving part 300.

[0240] The coil spring 830 can be circular in shape when viewed from above. The coil spring 830 can be formed by bending a single chain so that it overlaps multiple times in the direction of the optical axis.

[0241] The length of the coil spring 830 in the optical axis direction can be 56% to 96% of the distance between the upper surface of the metal member 225 and the lower surface of the cover 240. The length of the coil spring 830 in the optical axis direction can be 66% to 86% of the distance between the upper surface of the metal member 225 and the lower surface of the cover 240.

[0242] The coil spring 830 can include multiple coil springs. The coil spring 830 can include four coil springs. The coil spring 830 can include first to fourth coil springs. The OIS moving section 300 can include first to fourth corners. In this case, the coil spring 830 can include first to fourth coil springs positioned at the first to fourth corners of the OIS moving section 300. The first to fourth coil springs can be separated from each other in directions perpendicular to the optical axis.

[0243] As shown in FIG. 33a, the coil spring 830 according to the modification can include a hook portion 831. The hook portion 831 can include a hooked shape. The hook portion 831 can be hooked. The hook portion 831 can include a hook shape. The hook portion 831 can be in a hook shape. The hook portion 831 can be formed on one or more of both end portions of the coil spring 830. That is, the hook portion 831 can be formed only on the upper end portion of the coil spring 830. Or, the hook portion 831 can be formed only on the lower end portion of the coil spring 830. Or, the hook portion 831 can be formed on both the upper end portion and the lower end portion of the coil spring 830.

[0244] The hook portion 831 can be coupled to the OIS moving portion 300. The OIS moving portion 300 can include a groove or a hole on which the hook portion 831 of the coil spring 830 is engaged.

[0245] The hook portion 831 can be coupled to the metal member 225 of the AF moving portion 200. The metal member 225 of the AF moving portion 200 can include a groove or a hole on which the hook portion 831 of the coil spring 830 is engaged.

[0246] As shown in FIG. 33b, the coil spring 830 according to another modification can connect the elastic member 840 and the AF carrier 210. The elastic member 840 can be an upper elastic member. The elastic member 840 can be an upper-side elastic member. The elastic member 840 can include a spring. The elastic member 840 can be formed of a leaf spring. The elastic member 840 can have elasticity at least in part.

[0247] The elastic member 840 may include an inner portion 841. The inner portion 841 can be coupled to the OIS carrier 310. The elastic member 840 may include a coupling portion 842. The coupling portion 842 can be coupled to the coil spring 830. The elastic member 840 may include a connecting portion 843. The connecting portion 843 can connect the inner portion 841 and the coupling portion 842.

[0248] The joint portion 842 of the elastic member 840 and the coil spring 830 can be joined via solder 850. The lower end of the coil spring 830 can also be joined to the metal member 225 of the AF carrier 210 by solder.

[0249] As shown in Figure 33c, the coil spring 830 can include various morphological modifications. As shown in Figure 33c(a), the coil spring 830a can include a hook portion 831 at one end. However, the other end of the coil spring 830a can be formed with a straight, linear extension 832. As shown in Figure 33c(b), the coil spring 830b can include a circular hook portion 833. The circular hook portion 833 can be formed at each end of the coil spring 830b. In this case, the circular hook portion 833 may be circular in a form where the end is open and not perfectly circular so that it can be hooked onto other members. The hook portion 833 can also be round. As shown in Figure 33(c), the coil spring 830c can include a locking portion 834 that is bent once. The locking portion 834 can be formed at each end of the coil spring 830c. In modifications, the locking portion 834 can be bent multiple times. The locking portion 834 may have a bent shape. The locking portion 834 may have a right-angle bend shape. The locking portion 834 may have a curved shape.

[0250] The lens drive device 10 may include a pressurizing member. The pressurizing member may be an "AF guide ball pressurizing member". The pressurizing member can pressurize the AF guide ball 810. The pressurizing member can be formed to pressurize the ball. The AF guide ball 810, pressurized by the pressurizing member, can be sandwiched between the fixed part 100 and the AF moving part 200. The AF guide ball 810, pressurized by the pressurizing member, can be sandwiched between the base 110 and the AF carrier 210. The pressurizing member can be used to maintain the AF guide ball 810 in contact with the fixed part 100 and the AF moving part 200. The pressurizing member can be used to maintain the AF guide ball 810 in contact with the base 110 and the AF carrier 210.

[0251] The lens drive device 10 may include a plate member 910. The pressurizing member may include a plate member 910. The plate member 910 may be placed on the AF guide ball 810. The plate member 910 may be in contact with the AF guide ball 810. The plate member 910 may be placed on the elastic member 920. The plate member 910 may be placed on the base 110. The plate member 910 may be placed between the elastic member 920 and the AF guide ball 810. The plate member 910 can pressurize the AF guide ball 810 toward the AF carrier 210 by the elastic member 920. The plate member 910 may be placed between the AF guide ball 810 and the fixing part 100. The plate member 910 may be placed between the inner ball 811 and the column portion 111 of the fixing part 100.

[0252] The lens drive device 10 may include an elastic member 920. The pressurizing member may include an elastic member 920. The elastic member 920 may be a spring. The elastic member 920 may be a tapered spring. The elastic member 920 may be placed in the fixed part 100. The elastic member 920 can pressurize the AF guide ball 810 toward the AF moving part 200. The elastic member 920 can pressurize the plate member 910 toward the AF guide ball 810. The elastic member 920 may be placed between the plate member 910 and the fixed part 100. The elastic member 920 can push the plate member 910 out of the fixed part 100. The elastic member 920 can pressurize the plate member 910 in the opposite direction to the fixed part 100. The elastic member 920 may be placed between the plate member 910 and the column portion 111 of the fixed part 100. The elastic member 920 may be placed in the inner groove 111-1 of the fixed part 100. The elastic member 920 can pressurize the AF guide ball 810 between the fixed part 100 and the AF moving part 200.

[0253] In a modified configuration, the elastic member 920 can be positioned on the AF moving part 200. In this case, the elastic member 920 can pressurize the AF guide ball 810 toward the fixed part 100. The elastic member 920 can be positioned on either the fixed part 100 or the AF moving part 200, and can pressurize the AF guide ball 810 toward the other of the fixed part 100 or the AF moving part 200. The elastic member 920 can pressurize the plate member 910. The elastic member 920 can be positioned between the plate member 910 and the base 110. The elastic member 920 can be positioned between the AF guide ball 810 and the base 110. The elastic member 920 can be positioned on the base 110. The elastic member 920 can be positioned in the inner groove 111-1 of the base 110. The elastic member 920 can pressurize the AF guide ball 810 toward the AF carrier 210. This allows the AF guide ball 810 to maintain contact with the plate member 910 and the AF carrier 210.

[0254] The elastic member 920 may include a bent portion. The bent portion may have a folded shape. The bent portion may include multiple bent portions. The bent portion may include three bent portions. The elastic member 920 can be folded at least three times. The elastic member 920 may include an upper bent portion 921. The elastic member 920 may include a lower bent portion 922. The elastic member 920 may include a connecting bent portion 923. The connecting bent portion 923 may be positioned between the upper bent portion 921 and the lower bent portion 922. The upper bent portion 921 may form an obtuse angle. The lower bent portion 922 may form an obtuse angle. The connecting bent portion 923 may form an obtuse angle. The upper bent portion 921 may be positioned on the fixing portion 100. The lower bent portion 922 may be positioned on the fixing portion 100. The connecting bent portion 923 may be positioned on the plate member 910. With this structure, the elastic member 920 can push the plate member 910 out of the fixing part 100. The connecting bent part 923 comes into contact with the plate member 910, and can press the plate member 910 in the direction of the AF guide ball 810.

[0255] The height at which the elastic member 920 presses on the plate member 910 can be lower than the height of the lower-positioned ball among the inner top layer cardboard 811-1 and the outer top layer cardboard 812-1, and higher than the height of the higher-positioned ball among the inner bottom layer cardboard 811-2 and the outer bottom layer cardboard 812-2. More specifically, as shown in Figure 44(a), when the AF moving part 200 moves upward, the height (b) at which the elastic member 920 presses on the plate member 910 can be higher than the height (a) of the higher-positioned ball among the inner bottom layer cardboard 422 and the outer bottom layer cardboard 412. A height gap (c) can exist between the two points. Also, as shown in Figure 44(b), when the AF moving part 200 moves downward, the height (e) at which the elastic member 920 presses on the plate member 910 can be lower than the height (d) of the lower-positioned ball among the inner top layer cardboard 421 and the outer top layer cardboard 411. A height gap (f) can exist between the two points. This prevents or minimizes the generation of a moment caused by the elastic member 920 pressing on the plate member 910. In other words, it prevents the plate member 910 from tilting or detaching.

[0256] The lens drive device 10 may include a reinforcing member 930. The reinforcing member 930 may be placed on the base 110. The reinforcing member 930 may be placed to reinforce the strength of the base 110. The reinforcing member 930 may prevent damage to the base 110. The reinforcing member 930 may prevent damage to the column portion 111 of the base 110. The reinforcing member 930 may prevent damage to the outer wall portion 112 of the base 110. The reinforcing member 930 may be elastic. The reinforcing member 930 may be made of metal. The reinforcing member 930 may have a shape that is bent at least twice. The reinforcing member 930 may be formed in a "⊂" shape when viewed from above. The reinforcing member 930 may open inward.

[0257] The reinforcing member 930 may include an inner portion 931. The inner portion 931 can be positioned on the opposite side of the inner groove 111-1 of the column portion 111 of the fixing portion 100. The reinforcing member 930 may include an outer portion 932. The outer portion 932 can be positioned on the opposite side of the outer groove 112-1 of the outer wall portion 112 of the fixing portion 100. The reinforcing member 930 may include a connecting portion 933. The connecting portion 933 can connect the inner portion 931 and the outer portion 932.

[0258] The lens drive device 10 may include a cover 940. The cover 940 may be positioned on the AF guide ball 810. The cover 940 may overlap the AF guide ball 810 in the optical axis direction. The cover 940 may overlap the inner ball 811 in the optical axis direction. The cover 940 may overlap the outer ball 812 in the optical axis direction. The cover 940 may be positioned on the inner groove 224-1 and outer groove 224-2 of the AF carrier 210 to prevent the AF guide ball 810 from detaching upwards.

[0259] In the first embodiment of the present invention, one end of the wire 850 is coupled to the AF moving part 200 which is fixed when the OIS is driven, thereby reducing the characteristic of the wire 850 to vibrate at a point mass.

[0260] In the first embodiment of the present invention, the base 110, preloading member 230, inner substrate 720, holder member 220, and OIS carrier 310 can be arranged sequentially from the bottom. In the first embodiment of the present invention, the base 110, preloading member 230, inner substrate 720, holder member 220, and OIS carrier 310 can be stacked sequentially from the bottom. In the first embodiment of the present invention, a stable bonding surface with the lens module 20 can be ensured throughout the stacking direction. In the first embodiment of the present invention, the leaves of the lens module 20 can be positioned in the grooves 313 of the OIS carrier 310.

[0261] In the first embodiment of the present invention, the OIS-x drive unit 500 and the OIS-y drive unit 600 can each be equipped with two coils. By forming the distribution of the driving force at two points from the outside, the drive linearity can be improved. The magnets of the OIS-x drive unit 500 and the OIS-y drive unit 600 can each be formed as 4 poles. Alternatively, they can be formed with a total of 4 magnets, two 2-pole magnets each.

[0262] According to the first embodiment of the present invention, the attractive and repulsive forces between the AF magnet 410 and the OIS-x magnet 510, or between the AF magnet 410 and the OIS-y magnet 610, can be reduced. This reduces drive noise.

[0263] The configuration of the lens drive device according to a modified example will be described below with reference to the drawings.

[0264] Figure 34 is a cross-sectional view of a modified lens drive device, taken from above and cut perpendicular to the optical axis. Figure 35 is a bottom perspective view of the drive unit of the modified lens drive device.

[0265] In the modified configuration, the OIS-x magnet 510, OIS-x coil 520, OIS-y magnet 610, and OIS-y coil 620 can be changed compared to the first embodiment of the present invention. For configurations of modified configurations not described below, the description of the first embodiment of the present invention can be applied by analogy.

[0266] The OIS-x magnet 510 may include a first magnet portion 511. The first magnet portion 511 may include a north pole and a south pole. The first magnet portion 511 may be positioned on the first side surface of the OIS moving portion 300. The first magnet portion 511 may include an inner surface positioned on the first side surface of the OIS moving portion 300 and an outer surface opposite to the inner surface. The inner surface of the first magnet portion 511 may be formed entirely of a north pole. The outer surface of the first magnet portion 511 may be formed entirely of a south pole. Alternatively, the inner surface of the first magnet portion 511 may be a south pole and the outer surface may be a north pole.

[0267] The OIS-x magnet 510 may include a second magnet portion 512. The second magnet portion 512 may include a south pole and a north pole. The second magnet portion 512 may be positioned on the first side surface of the OIS moving portion 300. The second magnet portion 512 may include an inner surface positioned on the first side surface of the OIS moving portion 300 and an outer surface opposite the inner surface. The inner surface of the second magnet portion 512 may be formed entirely as a south pole. The outer surface of the second magnet portion 512 may be formed entirely as a north pole. Alternatively, the inner surface of the second magnet portion 512 may be a north pole and the outer surface may be a south pole.

[0268] The first magnet section 511 and the second magnet section 512 can overlap in the y-axis direction perpendicular to the optical axis direction and the x-axis direction. The first magnet section 511 and the second magnet section 512 can be formed to the same size. The first magnet section 511 and the second magnet section 512 can be formed to the same shape.

[0269] In the first embodiment of the present invention, the first magnet portion 511 and the second magnet portion 512 of the OIS-x magnet 510 can be formed with different polarities on their outer surfaces. However, in a modified example, the first magnet portion 511 and the second magnet portion 512 of the OIS-x magnet 510 can be formed with the same polarity on their outer surfaces.

[0270] The polarity of the first magnet portion 511 facing the first coil portion 521 and the polarity of the second magnet portion 512 facing the second coil portion 522 can be different. The polarity of the entire region of the first magnet portion 511 facing the first coil portion 521 can be the south pole. The polarity of the entire region of the first magnet portion 511 facing the first coil portion 521 can be a single polarity. The polarity of the entire region of the second magnet portion 512 facing the second coil portion 522 can be the north pole. The polarity of the entire region of the second magnet portion 512 facing the second coil portion 522 can be a single polarity.

[0271] The OIS-x magnet 510 may include a neutral portion 513. The neutral portion 513 may be positioned between the first magnet portion 511 and the second magnet portion 512. The neutral portion 513 may have a lower polarity than the first magnet portion 511 and the second magnet portion 512. The neutral portion 513 may have no polarity.

[0272] In the first embodiment of the present invention, the first magnet portion 511, the second magnet portion 512, and the neutral portion 513 can be formed integrally. That is, the first magnet portion 511, the second magnet portion 512, and the neutral portion 513 can be a single magnet with four poles magnetized.

[0273] The OIS-x coil 520 may include a first coil section 521. The first coil section 521 can interact with the first magnet section 511. The first coil section 521 can overlap with the first magnet section 511 in the x-axis direction. That is, the first coil section 521 and the first magnet section 511 can overlap in a direction that coincides with the driving direction due to their interaction.

[0274] The OIS-x coil 520 may include a second coil section 522. The second coil section 522 can interact with the second magnet section 512. The second coil section 522 can overlap with the second magnet section 512 in the x-axis direction. That is, the second coil section 522 and the second magnet section 512 can overlap in a direction that coincides with the driving direction due to their interaction.

[0275] The OIS-x coil 520 can contain two coils. The OIS-x coil 520 can contain two bundled coils. The OIS-x coil 520 can contain two bundled coils. The OIS-x coil 520 can contain two ring-shaped coils. The OIS-x coil 520 can contain two coil units. The OIS-x coil 520 can contain two split coils. The OIS-x coil 520 can be separated into two coils. The OIS-x coil 520 can be separated into two regions. Each of the first coil section 521 and the second coil section 522 can be ring-shaped. The first coil section 521 and the second coil section 522 can be formed from other coils.

[0276] The first coil section 521 and the second coil section 522 can be connected. The first coil section 521 can be electrically connected to the second coil section 522. In this case, the winding direction of the first coil section 521 may be opposite to the winding direction of the second coil section 522. In this case, when current is applied, the directions of the electromagnetic forces induced in the first coil section 521 and the second coil section 522 may be reversed.

[0277] The OIS-y magnet 610 may include a third magnet portion 611. The third magnet portion 611 may include a north pole and a south pole. The third magnet portion 611 may be positioned on the fourth side surface of the OIS moving portion 300. The third magnet portion 611 may include an inner surface positioned on the fourth side surface of the OIS moving portion 300 and an outer surface opposite the inner surface. The inner surface of the third magnet portion 611 may be formed entirely of a north pole. The outer surface of the third magnet portion 611 may be formed entirely of a south pole. Alternatively, the inner surface of the third magnet portion 611 may be a south pole and the outer surface may be a north pole.

[0278] The OIS-y magnet 610 may include a fourth magnet portion 612. The fourth magnet portion 612 may include a south pole and a north pole. The fourth magnet portion 612 may be positioned on the fourth side surface of the OIS moving portion 300. The fourth magnet portion 612 may include an inner surface positioned on the fourth side surface of the OIS moving portion 300 and an outer surface opposite the inner surface. The inner surface of the fourth magnet portion 612 may be formed entirely as a south pole. The outer surface of the fourth magnet portion 612 may be formed entirely as a north pole. Alternatively, the inner surface of the fourth magnet portion 612 may be a north pole and the outer surface may be a south pole.

[0279] The third magnet section 611 and the fourth magnet section 612 can overlap in the y-axis direction perpendicular to the optical axis direction and the x-axis direction. The third magnet section 611 and the fourth magnet section 612 can be formed to the same size. The third magnet section 611 and the fourth magnet section 612 can be formed to the same shape.

[0280] In the first embodiment of the present invention, the third magnet portion 611 and the fourth magnet portion 612 of the OIS-y magnet 610 can be formed with different polarities on their outer surfaces. However, in a modified example, the third magnet portion 611 and the fourth magnet portion 612 of the OIS-y magnet 610 can be formed with the same polarity on their outer surfaces.

[0281] The polarity of the third magnet portion 611 facing the third coil portion 621 and the polarity of the fourth magnet portion 612 facing the fourth coil portion 622 can be different. The polarity of the entire region of the third magnet portion 611 facing the third coil portion 621 can be the south pole. The polarity of the entire region of the third magnet portion 611 facing the third coil portion 621 can be a single polarity. The polarity of the entire region of the fourth magnet portion 612 facing the fourth coil portion 622 can be the north pole. The polarity of the entire region of the fourth magnet portion 612 facing the fourth coil portion 622 can be a single polarity.

[0282] The OIS-y magnet 610 may include a neutral portion 613. The neutral portion 613 may be positioned between the third magnet portion 611 and the fourth magnet portion 612. The neutral portion 613 may have a lower polarity than the third magnet portion 611 and the fourth magnet portion 612. The neutral portion 613 may have no polarity.

[0283] In the first embodiment of the present invention, the third magnet portion 611, the fourth magnet portion 612, and the neutral portion 613 can be formed integrally. That is, the third magnet portion 611, the fourth magnet portion 612, and the neutral portion 613 can be a single magnet with four poles magnetized.

[0284] The OIS-y coil 620 may include a third coil section 621. The third coil section 621 can interact with the third magnet section 611. The third coil section 621 can overlap with the third magnet section 611 in the x-axis direction. That is, the third coil section 621 and the third magnet section 611 can overlap in a direction that coincides with the driving direction due to their interaction.

[0285] The OIS-y coil 620 may include a fourth coil section 622. The fourth coil section 622 can interact with the fourth magnet section 612. The fourth coil section 622 can overlap with the fourth magnet section 612 in the x-axis direction. That is, the fourth coil section 622 and the fourth magnet section 612 can overlap in a direction that coincides with the driving direction due to their interaction.

[0286] The OIS-y coil 620 can contain two coils. The OIS-y coil 620 can contain two bundled coils. The OIS-y coil 620 can contain two bundled coils. The OIS-y coil 620 can contain two ring-shaped coils. The OIS-y coil 620 can contain two coil units. The OIS-y coil 620 can contain two split coils. The OIS-y coil 620 can be separated into two coils. The OIS-y coil 620 can be separated into two regions. The third coil section 621 and the fourth coil section 622 can each contain a ring shape. The third coil section 621 and the fourth coil section 622 can be formed from different coils.

[0287] The third coil section 621 and the fourth coil section 622 can be connected. The third coil section 621 can be electrically connected to the fourth coil section 622. In this case, the winding direction of the third coil section 621 may be opposite to the winding direction of the fourth coil section 622. In this case, when current is applied, the directions of the electromagnetic forces induced in the third coil section 621 and the fourth coil section 622 can be reversed.

[0288] The autofocus (AF) drive of a lens drive device according to the first embodiment of the present invention will be described below with reference to the drawings.

[0289] Figures 45 to 47 are diagrams illustrating the autofocus drive of a lens drive device according to a first embodiment of the present invention. Figure 45 is a cross-sectional view showing the state of the moving part in the initial state when no current is applied to the AF coil. Figure 46 is a cross-sectional view showing the state when a positive current is applied to the AF coil and the moving part moves upward in the optical axis direction. Figure 47 is a cross-sectional view showing the state when a reverse current is applied to the AF coil and the moving part moves downward in the optical axis direction.

[0290] As shown in Figure 45, the movable part can be positioned at a location where it is separated from the top plate 121 of the cover 120 and the base 110 in the initial position when no current is applied to the AF coil 420. In this case, the movable part can be the AF movable part 200. Alternatively, the movable part can include the AF movable part 200 and the OIS movable part 300.

[0291] When a positive current is applied to the AF coil 420, the electromagnetic interaction between the AF coil 420 and the AF magnet 410 allows the AF coil 420 to move upward in the optical axis direction (see Figure 46A). At this time, the AF carrier 210 can move upward in the optical axis direction along with the AF coil 420. Furthermore, the OIS carrier 310 and the lens can move upward in the optical axis direction along with the AF carrier 210. This changes the distance between the lens and the image sensor, and the focus of the image formed on the image sensor via the lens can be adjusted.

[0292] When a reverse current is applied to the AF coil 420, the electromagnetic interaction between the AF coil 420 and the AF magnet 410 allows the AF coil 420 to move downward in the optical axis direction (see Figure 47B). At this time, the AF carrier 210 can move downward in the optical axis direction along with the AF coil 420. Furthermore, the OIS carrier 310 and the lens can move downward in the optical axis direction along with the AF carrier 210. This changes the distance between the lens and the image sensor, and the focus of the image formed on the image sensor via the lens can be adjusted.

[0293] Meanwhile, during the movement of the AF coil 420, the AF sensor 430 moves together with the AF coil 420, sensing the strength of the magnetic field of the AF magnet 410, and can detect the amount of movement and position of the lens in the optical axis direction. The amount of movement and position of the lens in the optical axis direction detected by the AF sensor 430 can be used for autofocus feedback control.

[0294] The optical image stabilization (OIS) drive of the lens drive device according to the first embodiment of the present invention will be described below with reference to the drawings.

[0295] Figures 48 to 50 are diagrams illustrating the image stabilization drive of a lens drive device according to a first embodiment of the present invention. Figure 48 is a cross-sectional view showing the state of the OIS moving part in the initial state when no current is applied to the OIS-x coil and OIS-y coil. Figure 49 is a cross-sectional view showing the state in which the OIS moving part moves in the x-axis direction perpendicular to the optical axis when current is applied to the OIS-x coil. Figure 50 is a cross-sectional view showing the state in which the OIS moving part moves in the y-axis direction perpendicular to the optical axis and the x-axis when current is applied to the OIS-y coil.

[0296] As shown in Figure 48, the movable part can be positioned in its initial position when no current is applied to the OIS-x coil 520 and the OIS-y coil 620. In this case, the movable part can be the OIS movable part 300.

[0297] When current is applied to the OIS-x coil 520, the electromagnetic interaction between the OIS-x coil 520 and the OIS-x magnet 510 allows the OIS-x magnet 510 to move in the x-axis direction perpendicular to the optical axis (see Figure 49A). At this time, the OIS carrier 310 can move in the x-axis direction together with the OIS-x magnet 510. Furthermore, the lens can move in the x-axis direction together with the OIS carrier 310. More specifically, when a positive current is applied to the OIS-x coil 520, the OIS-x magnet 510, OIS carrier 310, and lens can move in one direction along the x-axis. Conversely, when a reverse current is applied to the OIS-x coil 520, the OIS-x magnet 510, OIS carrier 310, and lens can move in the other direction along the x-axis.

[0298] When current is applied to the OIS-y coil 620, the electromagnetic interaction between the OIS-y coil 620 and the OIS-y magnet 610 allows the OIS-y magnet 610 to move in the y-axis direction perpendicular to the optical axis (see Figure 50B). At this time, the OIS carrier 310 can move in the y-axis direction together with the OIS-y magnet 610. Furthermore, the lens can move in the y-axis direction together with the OIS carrier 310. More specifically, when a positive current is applied to the OIS-y coil 620, the OIS-y magnet 610, OIS carrier 310, and lens can move in one direction along the y-axis. Conversely, when a reverse current is applied to the OIS-y coil 620, the OIS-y magnet 610, OIS carrier 310, and lens can move in the other direction along the y-axis.

[0299] On the other hand, the OIS-x sensor 530 can sense the strength of the magnetic field of the OIS-x magnet 510 and can sense the amount of movement and position of the OIS-x magnet 510. The amount of movement and position sensed by the OIS-x sensor 530 can be used for x-axis image stabilization feedback control. The OIS-y sensor 630 can sense the strength of the magnetic field of the OIS-y magnet 610 and can sense the amount of movement and position of the OIS-y magnet 610. The amount of movement and position sensed by the OIS-y sensor 630 can be used for y-axis image stabilization feedback control.

[0300] A camera device according to the first embodiment of the present invention will be described below with reference to the drawings.

[0301] Figure 51 is an exploded perspective view of a camera device according to a first embodiment of the present invention.

[0302] The camera device 10a may include a camera module.

[0303] The camera device 10a may include a lens module 20. The lens module 20 may include at least one lens. The lens may be positioned in a location corresponding to the image sensor 60. The lens module 20 may include a lens and a barrel. The lens module 20 may be coupled to the OIS carrier 310 of the lens drive device 10. The lens module 20 may be coupled to the OIS carrier 310 by screw coupling and / or adhesive. The lens module 20 may move together with the OIS carrier 310.

[0304] The camera device 10a may include a filter 30. The filter 30 can block light of a specific frequency band from entering the image sensor 60 from the light passing through the lens module 20. The filter 30 can be positioned parallel to the xy plane. The filter 30 can be positioned between the lens module 20 and the image sensor 60. The filter 30 can be positioned on the sensor base 40. In a modified example, the filter 30 can be positioned on the base 110. The filter 30 may include an infrared filter. The infrared filter can block light in the infrared region from entering the image sensor 60.

[0305] The camera device 10a may include a sensor base 40. The sensor base 40 may be positioned between the lens drive unit 10 and the printed circuit board 50. The sensor base 40 may include a projection 41 on which a filter 30 is positioned. An opening may be formed in the portion of the sensor base 40 on which the filter 30 is positioned, allowing light passing through the filter 30 to enter the image sensor 60. An adhesive member may be used to bond or adhere the base 110 of the lens drive unit 10 to the sensor base 40. The adhesive member may also serve to prevent foreign matter from entering the inside of the lens drive unit 10. The adhesive member may include one or more of epoxy, thermosetting adhesives, and UV-curing adhesives.

[0306] The camera device 10a may include a printed circuit board (PCB) 50. The printed circuit board 50 may be a board or a circuit board. A lens drive device 10 may be placed on the printed circuit board 50. A sensor base 40 may be placed between the printed circuit board 50 and the lens drive device 10. The printed circuit board 50 may be electrically connected to the lens drive device 10. An image sensor 60 may be placed on the printed circuit board 50. The printed circuit board 50 may also be equipped with various circuits, elements, control units, etc., for converting the image formed on the image sensor 60 into an electrical signal and transmitting it to an external device.

[0307] The camera device 10a may include an image sensor 60. The image sensor 60 may be configured such that an image is formed when light that has passed through a lens and a filter 30 is incident on it. The image sensor 60 may be mounted on a printed circuit board 50. The image sensor 60 may be electrically connected to the printed circuit board 50. For example, the image sensor 60 may be coupled to the printed circuit board 50 by surface mounting technology (SMT). In another example, the image sensor 60 may be coupled to the printed circuit board 50 by flip-chip technology. The image sensor 60 may be positioned so that its optical axis coincides with that of the lens. That is, the optical axis of the image sensor 60 and the optical axis of the lens can be aligned. The image sensor 60 may convert light illuminating the effective image area of ​​the image sensor 60 into an electrical signal. The image sensor 60 may be one of the following: CCD (charge coupled device), MOS (metal oxide semiconductor), CPD, and CID.

[0308] The camera device 10a may include a motion sensor 70. The motion sensor 70 may be mounted on a printed circuit board 50. The motion sensor 70 may be electrically connected to the control unit 80 through a circuit pattern provided on the printed circuit board 50. The motion sensor 70 may output rotational angular velocity information due to the movement of the camera device 10a. The motion sensor 70 may include a 2-axis or 3-axis gyro sensor, or an angular velocity sensor.

[0309] The camera device 10a may include a control unit 80. The control unit 80 may be located on a printed circuit board 50. The control unit 80 may be electrically connected to the coil 330 of the lens drive device 10. The control unit 80 can individually control the direction, intensity, and amplitude of the current supplied to the coil 330. The control unit 80 can control the lens drive device 10 to perform autofocus and / or image stabilization functions. Furthermore, the control unit 80 can perform autofocus feedback control and / or image stabilization feedback control to the lens drive device 10.

[0310] 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.

[0311] Hereinafter, an optical device according to the first embodiment of the present invention will be described with reference to the drawings.

[0312] Figure 52 is a perspective view of an optical device according to the first embodiment of the present invention. Figure 53 is a perspective view of an optical device according to a modified example.

[0313] Optical device 1 may include one or more of the following: mobile phones, cell phones, mobile terminals, mobile devices, smartphones, smartpads, portable smart devices, digital cameras, laptop computers, digital broadcasting terminals, PDAs (Personal Digital Assistants), PMPs (Portable Multimedia Players), and navigation systems. Optical device 1 may also include any device for capturing images or photographs.

[0314] Optical device 1 may include a main body 20. Optical device 1 may include a camera device 10a. The camera device 10a may be mounted on the main body 20. The camera device 10a may capture images of a subject. Optical device 1 may include a display. The display may be mounted on the main body 20. The display may output one or more of the video and images captured by the camera device 10a. The display may be mounted on the first surface of the main body 20. The camera device 10a may be mounted on either the first surface of the main body 20 or the second surface opposite the first surface. As shown in Figure 52, the camera device 10a may have triple cameras arranged vertically. As shown in Figure 53, the camera device 10A-1 may have triple cameras arranged horizontally.

[0315] 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.

[0316] Figure 54 is a conceptual diagram of a lens drive device according to a second embodiment of the present invention. Figure 55 is a perspective view of a lens drive device according to a second embodiment of the present invention. Figure 56 is a cross-sectional view taken from AA in Figure 55. Figure 57 is a cross-sectional view taken from BB in Figure 55. Figure 58 is an enlarged view of region F in Figure 57. Figure 59 is a cross-sectional view taken from CC in Figure 55. Figure 60 is an enlarged view of region G in Figure 59. Figure 61 is a cross-sectional view taken from DD in Figure 55. Figure 62 is an enlarged view of region H in Figure 61. Figure 63 is a cross-sectional view taken from EE in Figure 55. Figure 64 is a cross-sectional view taken from above, cut in a direction perpendicular to the optical axis, of a lens drive device according to a second embodiment of the present invention. Figure 65 is an exploded perspective view of a lens drive device according to a second embodiment of the present invention. Figure 66 is an exploded perspective view of a lens drive device according to a second embodiment of the present invention, taken from a different direction than Figure 65. Figure 67 is a perspective view of a lens drive device according to a second embodiment of the present invention with the cover omitted. Figure 68 is a perspective view showing the fixed part and related configuration of a lens drive device according to a second embodiment of the present invention. Figure 69 is a perspective view showing the moving part and related configuration of a lens drive device according to a second embodiment of the present invention. Figure 70 is a perspective view showing the coupling structure of the inner and outer substrates of a lens drive device according to a second embodiment of the present invention. Figure 71 is a bottom perspective view showing the moving part and related configuration of a lens drive device according to a second embodiment of the present invention. Figure 72 is a bottom perspective view showing the coupling structure of the inner and outer substrates of a lens drive device according to a second embodiment of the present invention. Figure 73 is a perspective view of Figure 69 with the cover removed. Figure 74 is a perspective view of Figure 73 with the OIS moving part and related configuration removed. Figure 75 is an exploded perspective view of Figure 74 with the wire separated. Figure 76 is a perspective view showing the OIS moving part and related configuration of a lens drive device according to a second embodiment of the present invention. Figure 77 is a bottom perspective view from a different direction than Figure 76. Figure 78 is a bottom perspective view of Figure 69 from another direction. Figure 79 is a bottom view of Figure 78 with the preloading member and inner substrate removed. Figure 80 is a perspective view showing the coupling structure of the elastic member, wire and metal member of a lens drive device according to a second embodiment of the present invention. Figure 81 is an enlarged view of area I in Figure 80. Figure 82 is a partially perspective view of the lens drive device according to the second embodiment of the present invention with the cover removed.Figure 83 is an enlarged view of area A in Figure 82. Figure 84 is an enlarged view of area B in Figure 82. Figure 85 is a bottom perspective view of the drive unit of a lens drive device according to a second embodiment of the present invention. Figure 86 is a bottom perspective view of the drive unit of a modified lens drive device. Figure 87 is a cross-sectional perspective view showing the coupling structure of the wire and preload member of a lens drive device according to a second embodiment of the present invention. Figure 88 is a cross-sectional view showing the coupling structure of the wire and preload member of a lens drive device according to a second embodiment of the present invention. Figure 89 is a plan view of the lens drive device according to a second embodiment of the present invention with the cover removed. Figure 90 is a plan view of a part of Figure 89 enlarged with the cover omitted. Figure 91 is a perspective view showing the ball and related configuration of a lens drive device according to a second embodiment of the present invention. Figure 92 is a perspective view showing the ball housing structure of the base of a lens drive device according to a second embodiment of the present invention. Figure 93 is a perspective view showing the state in which the ball, plate member, elastic member and reinforcing member are arranged in Figure 92. Figure 94 is a perspective view of Figure 93 from another direction. Figure 95 is a perspective view showing the moving part and ball of a lens driving device according to a second embodiment of the present invention. Figure 96 is a perspective view of Figure 95 from another direction. Figure 97(a) is a diagram comparing the height of the ball and the pressurized point when the moving part is moved upward, and (b) is a diagram comparing the height of the ball and the pressurized point when the moving part is moved downward.

[0317] The lens drive unit 1010 can be a voice coil motor (VCM). The lens drive unit 1010 can be a lens drive motor. The lens drive unit 1010 can be a lens drive actuator. The lens drive unit 1010 can include an AF module. The lens drive unit 1010 can include an OIS module.

[0318] The lens drive device 1010 may include a fixed portion 1100. The fixed portion 1100 can be a part that is fixed relative to the movement of the movable portion. The movable portion can move relative to the fixed portion 1100.

[0319] The lens drive unit 1010 may include a base 1110. The fixed part 1100 may include a base 1110. The base 1110 may be located below the AF carrier 1210. The base 1110 may be located below the OIS carrier 1310. The base 1110 may be coupled with the cover 1120. The AF carrier 1210 and the OIS carrier 1310 may be located on the base 1110. The AF carrier 1210 and the OIS carrier 1310 may be located on the lower plate portion of the base 1110. The AF carrier 1210 and the OIS carrier 1310 may be located inside the base 1110. The AF carrier 1210 and the OIS carrier 1310 may be located inside the side wall portion of the base 1110.

[0320] The base 1110 may include a lower plate. The lower plate of the base 1110 can support the lower surface of the AF moving part 1200. The lower plate of the base 1110 can support the lower surface of the AF carrier 1210.

[0321] The base 1110 may include a column 1111. The column 1111 may extend from the upper surface of the lower plate. The column 1111 may be positioned inside the outer wall 1112.

[0322] The base 1110 may include a first guide that guides the AF guide ball 1810 as it moves. The first guide may include an inner groove 1111-1 of the base 1110. The first guide may include an outer groove 1112-1 of the base 1110.

[0323] The base 1110 may include an inner groove 1111-1. The columnar portion 1111 may include an inner groove 1111-1. The inner groove 1111-1 may be formed in the columnar portion 1111. The inner groove 1111-1 may be an "AF guide ball housing groove". An AF guide ball 1810 may be placed in the inner groove 1111-1. An inner ball 1811 may be placed in the inner groove 1111-1. The inner groove 1111-1 may be in direct contact with the AF guide ball 1810. The inner groove 1111-1 may be positioned in the optical axis direction. The inner groove 1111-1 may include multiple grooves. The inner groove 1111-1 may include two grooves. The two grooves may be positioned parallel to each other. The two grooves may be positioned diagonally to each other with respect to the optical axis.

[0324] The base 1110 may include a stepped jaw 1111-2. The stepped jaw 1111-2 can be formed on the column portion 1111. A plate member 1910 can be placed on the stepped jaw 1111-2.

[0325] The base 1110 may include an exterior wall portion 1112. The exterior wall portion 1112 may be a "side portion". The exterior wall portion 1112 may be a "side plate". The exterior wall portion 1112 may be a "side wall". The exterior wall portion 1112 of the base 1110 may extend from the upper surface of the bottom plate portion.

[0326] The base 1110 may include an outer groove 1112-1. The outer wall portion 1112 may include an outer groove 1112-1. The outer groove 1112-1 may be formed to face the inner groove 1111-1. The outer groove 1112-1 may be positioned to face the inner groove 1111-1. The outer groove 1112-1 may be an "AF guide ball housing groove". An AF guide ball 1810 may be positioned in the outer groove 1112-1. An outer ball 1812 may be positioned in the outer groove 1112-1. The outer groove 1112-1 may be in direct contact with the AF guide ball 1810. The outer groove 1112-1 may be positioned in the optical axis direction. The outer groove 1112-1 may include multiple grooves. The outer groove 1112-1 may include two grooves. The two grooves may be positioned parallel to each other. The two grooves can be positioned diagonally to each other with respect to the optical axis. The outer groove 1112-1 can be positioned on the opposite side of the inner groove 1111-1. The outer groove 1112-1 can be formed in a shape corresponding to the inner groove 1111-1. The outer groove 1112-1 and the inner groove 1111-1 can be formed to be the same length in the direction of the optical axis.

[0327] The base 1110 may include a protrusion 1114. The protrusion 1114 may project outward. Connecting portions 1712 of the outer substrate 1710 may be positioned above and below the protrusion 1114. Grooves may be formed in the protrusion 1114 to prevent interference when the connecting portions 1712 of the outer substrate 1710 move.

[0328] The base 1110 may include a step. The step may be formed at the lower end of the outer surface of the base 1110. The step may protrude from the outer surface of the base 1110. The side plate 1122 of the cover 1120 may be positioned on the step of the base 1110.

[0329] The lens drive unit 1010 may include a cover 1120. The fixing part 1100 may include a cover 1120. The cover 1120 may be placed on the base 1110. The cover 1120 may be placed on the base 1110. The cover 1120 may be coupled to the base 1110. The cover 1120 may be fixed to the base 1110. The cover 1120 may house an AF carrier 1210 inside. The cover 1120 may house an OIS carrier 1310 inside. The cover 1120 may be a shielding member. The cover 1120 may be a shielding can.

[0330] The cover 1120 may include a top plate 1121. The top plate 1121 may be positioned on the moving part. The upward movement of the moving part may be restricted by the moving part contacting the top plate 1121. The top plate 1121 may include holes through which light passes.

[0331] 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 positioned on the base 1110. The side plates 1122 may be positioned on a stepped portion that protrudes from the lower end of the outer surface of the base 1110. The side plates 1122 may include multiple 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 positioned on opposite sides of each other, and a third side plate and a fourth side plate positioned on opposite sides of each other.

[0332] The lens drive unit 1010 may include a movable part. The movable part may be located on the fixed part 1100. The movable part may be located within the fixed part 1100. The movable part may be located on the fixed part 1100. The movable part may be movably located on the fixed part 1100. The movable part may be moved relative to the fixed part 1100 by a drive unit. The movable part may be moved during AF drive. The movable part may be moved during OIS drive. A lens may be coupled to the movable part.

[0333] The lens drive unit 1010 may include an AF moving unit 1200. The AF moving unit 1200 can be located on the fixed unit 1100. The AF moving unit 1200 can be located within the fixed unit 1100. The AF moving unit 1200 can be located on the fixed unit 1100. The AF moving unit 1200 can be located between the fixed unit 1100 and the OIS moving unit 1300. The AF moving unit 1200 can be movably located on the fixed unit 1100. The AF moving unit 1200 can be moved in the optical axis direction relative to the fixed unit 1100 by the AF drive unit 1400. The AF moving unit 1200 can be moved when AF is driven.

[0334] In a modified configuration, the AF moving unit 1200 and the AF drive unit 1400 can be omitted. That is, the OIS moving unit 1300 can be placed on the fixed unit 1100. Alternatively, the OIS moving unit 1300 can be placed on the fixed unit 1100, and the AF moving unit 1200 can be placed inside the OIS moving unit 1300.

[0335] The lens drive unit 1010 may include an AF carrier 1210. The AF moving unit 1200 may include an AF carrier 1210. The AF carrier 1210 may be an "AF holder". The AF carrier 1210 may be a "housing". The AF carrier 1210 may be located inside the base 1110. The AF carrier 1210 may be located on the base 1110. The AF carrier 1210 may be located inside the cover 1120. The AF carrier 1210 may be located between the base 1110 and the OIS carrier 1310. The AF carrier 1210 may be located so as to be movable in the optical axis direction.

[0336] The AF carrier 1210 may include a frame, a first upper plate, and a second upper plate. In this case, the frame may be the main body. The frame may be a holder member 1220. The first upper plate may be a metal member 1225. The second upper plate may be a preloading member 1230. The AF carrier 1210 may be a housing. The housing may include a first housing and a second housing. In this case, the first housing may include a holder member 1220, and the second housing may include a preloading member 1230. The OIS carrier 1310 may be a bobbin. The OIS guide ball 1820 may be positioned between the housing and the bobbin. The AF guide ball 1810 may be positioned between the side of the housing and the cover 1120. The AF guide ball 1810 may be positioned between the side of the housing and the base or the column of the base.

[0337] The lens drive device 1010 may include a holder member 1220. The AF carrier 1210 may also include a holder member 1220. The holder member 1220 may be formed separately from the preload member 1230. A wire 1850 can be connected to the holder member 1220.

[0338] The AF carrier 1210 may include a bottom plate. The bottom plate can be positioned below the OIS carrier 1310. The bottom plate can be positioned between the OIS carrier 1310 and the base 1110.

[0339] The AF carrier 1210 may include a groove 1222. The groove 1222 may be a "preload member passage hole". The holder member 1220 may include a groove 1222. The lower plate of the holder member 1220 may include a groove 1222. The groove 1222 may be formed in the lower plate of the holder member 1220. The groove 1222 may open inward. A preload member 1230 may be inserted into the groove 1222. A projection 1231 of the preload member 1230 may be inserted into the groove 1222. The groove 1222 may be formed independently. The groove 1222 may be replaced independently. That is, in a modified example, the AF carrier 1210 may include a groove 1222 into which the projection 1231 of the preload member 1230 is inserted.

[0340] The AF carrier 1210 may include side walls. The side walls may extend downward from the top plate. An inner substrate 1720 may be placed on the side wall. An AF coil 1420 may be placed on the side wall. An OIS-x coil 1520 may be placed on the side wall. An OIS-y coil 1620 may be placed on the side wall. The side wall may include grooves to avoid the coils. The side wall may include multiple side walls. The side wall may include four side walls. The side wall may include a first and second side wall placed on opposite sides of each other, and a third and fourth side wall placed on opposite sides of each other.

[0341] The AF carrier 1210 may include a second guide that guides the AF guide ball 1810 as it moves. The second guide may include an inner groove 1224-1 of the AF carrier 1210. The second guide may include an outer groove 1224-2 of the AF carrier 1210.

[0342] The AF carrier 1210 may include an inner groove 1224-1. The holder member 1220 may include an inner groove 1224-1. The inner groove 1224-1 may be an "AF guide ball housing groove". An AF guide ball 1810 may be placed in the inner groove 1224-1. An inner ball 1811 may be placed in the inner groove 1224-1. The inner groove 1224-1 may be in direct contact with the AF guide ball 1810. The inner groove 1224-1 may be positioned in the optical axis direction. The inner groove 1224-1 may guide the AF guide ball 1810 to move in the optical axis direction. The inner groove 1224-1 may include multiple grooves. The inner groove 1224-1 may include two grooves. The two grooves may be positioned parallel to each other. The two grooves may be positioned diagonally to each other with respect to the optical axis.

[0343] The AF carrier 1210 may include an outer groove 1224-2. The holder member 1220 may include an outer groove 1224-2. The outer groove 1224-2 may be an "AF guide ball housing groove". An AF guide ball 1810 may be placed in the outer groove 1224-2. An outer ball 1812 may be placed in the outer groove 1224-2. The outer groove 1224-2 may be in direct contact with the AF guide ball 1810. The outer groove 1224-2 may be positioned in the optical axis direction. The outer groove 1224-2 may guide the AF guide ball 1810 to move in the optical axis direction. The outer groove 1224-2 may include multiple grooves. The outer groove 1224-2 may include two grooves. The two grooves may be positioned parallel to each other. The two grooves may be positioned diagonally to each other with respect to the optical axis. The outer groove 1224-2 can be positioned on the opposite side of the inner groove 1224-1. The outer groove 1224-2 can be formed in a shape corresponding to that of the inner groove 1224-1. The outer groove 1224-2 and the inner groove 1224-1 can be formed to be the same length in the optical axis direction.

[0344] The AF carrier 1210 may include a metal member 1225. The holder member 1220 may include a metal member 1225. The holder member 1220 may include a lower plate having a metal member 1225. The metal member 1225 may be placed on the holder member 1220. The metal member 1225 may be insert-injected into the holder member 1220. At least a portion of the metal member 1225 may be placed on the upper surface of the holder member 1220. The metal member 1225 may be placed to reinforce the strength of the holder member 1220.

[0345] The metal member 1225 may include a hole. A wire 1850 can be placed in the hole. The wire 1850 can pass through the hole in the metal member 1225. The metal member 1225 may include a first hole 1225-1. The first hole 1225-1 may be placed adjacent to the wire 1850. The first hole 1225-1 may be placed adjacent to the hole through which the wire 1850 passes. The first hole 1225-1 may be placed adjacent to an electrical member that connects the wire 1850 and the metal member 1225. An electrical member that connects the wire 1850 and the metal member 1225 can flow into the first hole 1225-1. Solder that connects the wire 1850 and the metal member 1225 can flow into the first hole 1225-1. The first hole 1225-1 may be formed to have curvature. The first hole 1225-1 can be formed in a U-shape when viewed from below. The first hole 1225-1 can also include a curved shape when viewed from below.

[0346] The metal member 1225 may include a second hole 1225-2. The second hole 1225-2 may be positioned adjacent to the wire 1850. The second hole 1225-2 may be positioned adjacent to the hole through which the wire 1850 passes. The second hole 1225-2 may be positioned adjacent to the conductive member connecting the wire 1850 and the metal member 1225. The conductive member connecting the wire 1850 and the metal member 1225 can flow into the second hole 1225-2. The second hole 1225-2 may be positioned on the opposite side of the first hole 1225-1 with respect to the wire 1850. The second hole 1225-2 may be positioned on the opposite side of the first hole 1225-1 with respect to the hole in the metal member 1225 through which the wire 1850 is positioned. Solder connecting the wire 1850 and the metal member 1225 can flow into the second hole 1225-2. The second hole, 1225-2, can be played in a straight line.

[0347] The AF carrier 1210 may include a protrusion 1226. The holder member 1220 may include a protrusion 1226. The protrusion 1226 may be formed on the outer surface of the AF carrier 1210. The protrusion 1226 may protrude outward from the AF carrier 1210. Connecting portions 1712 may be arranged on the upper and lower surfaces of the protrusion 1226.

[0348] The lens drive device 1010 may include a preload member 1230. The AF carrier 1210 may include a preload member 1230. The preload member 1230 can be coupled to the upper surface of the holder member 1220. The preload member 1230 can be coupled to the holder member 1220. The preload member 1230 can be inserted into the holder member 1220 from above and coupled. The preload member 1230 can pressurize the OIS guide ball 1820. The preload member 1230 can come into contact with the OIS guide ball 1820. The preload member 1230 can come into direct contact with the OIS guide ball 1820. The preload member 1230 can be coupled to the holder member 1220 and pressurize the OIS guide ball 1820. The preload member 1230 can come into contact with the OIS guide ball 1820 and pressurize a portion of the elastic member 1830.

[0349] The preload member 1230 can be positioned between the AF moving unit 1200 and the base 1110 in the optical axis direction. The preload member 1230 can be positioned between the AF moving unit 1200 and the base 1110. The preload member 1230 can be positioned between the AF carrier 1210 and the base 1110.

[0350] The AF carrier 1210 may include a projection 1231. The preload member 1230 may include a projection 1231. The projection 1231 may be a "projection". The preload member 1230 may have a projection 1231 that guides the OIS guide ball 1820. The projection 1231 may be coupled to the groove 1222 of the holder member 1220. The projection 1231 of the preload member 1230 may be inserted into the groove 1222 of the holder member 1220 from below. The projection 1231 of the preload member 1230 may be positioned in the groove 1222 of the holder member 1220. At least a portion of the projection 1231 of the preload member 1230 may be positioned in the groove 1222 of the holder member 1220. The projection 1231 may include multiple projections. The projection 1231 may include four projections.

[0351] The AF carrier 1210 may include a groove 1232. The preloading member 1230 may include a groove 1232. The groove 1232 may be an "OIS guide ball housing groove". The groove 1232 may be formed in the projection 1231. The groove 1232 may be formed on the upper surface of the projection 1231. The groove 1232 may be formed at the end of the projection 1231. The groove 1232 may be formed as a recess on the upper surface of the projection 1231. An OIS guide ball 1820 may be placed in the groove 1232. The OIS guide ball 1820 may be in contact with the groove 1232.

[0352] The preloading member 1230 may include a main body portion 1233. The main body portion 1233 can be coupled to the holder member 1220. The main body portion 1233 can be positioned on the lower surface of the holder member 1220. The projection portion 1231 may project upward from the main body portion 1233.

[0353] The lens drive unit 1010 may include a cover 1240. The AF moving unit 1200 may include a cover 1240. The cover 1240 can be coupled to the AF carrier 1210. The cover 1240 can be coupled to the upper surface of the AF carrier 1210. The cover 1240 can be coupled to the upper side of the AF carrier 1210. The cover 1240 can be coupled to the upper side of the holder member 1220. The cover 1240 may include a hook. The hook of the cover 1240 can be coupled to the AF carrier 1210. The hook of the cover 1240 protrudes from the bottom and can be coupled to the side of the AF carrier 1210.

[0354] The lens drive unit 1010 may include an OIS moving unit 1300. The OIS moving unit 1300 can be located in the fixed unit 1100. The OIS moving unit 1300 can be located within the fixed unit 1100. The OIS moving unit 1300 can be located on the fixed unit 1100. The OIS moving unit 1300 can be located within the AF moving unit 1200. The OIS moving unit 1300 can be movably positioned. The OIS moving unit 1300 can be moved by the OIS drive unit in a direction perpendicular to the optical axis relative to the fixed unit 1100 and the AF moving unit 1200. The OIS moving unit 1300 can be moved in the x-axis direction by the OIS-x drive unit 1500. The OIS moving unit 1300 can be moved in the y-axis direction by the OIS-y drive unit 1600. The OIS moving unit 1300 can move when the OIS is driven.

[0355] The OIS moving section 1300 may include a first side and a second side, and a third side and a fourth side, which are located opposite each other. The OIS-x magnet 1510 may be located on the first side of the OIS moving section 1300. The AF magnet 1410 may be located on the third side of the OIS moving section 1300, or opposite the third side. That is, the AF magnet 1410 may be located in a position corresponding to the third side of the OIS moving section 1300. The AF magnet 1410 may be located closest to the third side among the first to fourth sides of the OIS moving section 1300. The OIS-y magnet 1610 may be located on the fourth side of the OIS moving section 1300.

[0356] The lens drive unit 1010 may include an OIS carrier 1310. The OIS moving unit 1300 may include an OIS carrier 1310. The OIS carrier 1310 may be an "OIS holder". The OIS carrier 1310 may be a "bobbin". The OIS carrier 1310 may be located inside the AF carrier 1210. The OIS carrier 1310 may be located inside the base 1110. The OIS carrier 1310 may be located on the base 1110. The OIS carrier 1310 may be located inside the cover 1120. The OIS carrier 1310 may be located so as to be movable in a direction perpendicular to the optical axis.

[0357] The OIS carrier 1310 may include an outer surface. The OIS carrier 1310 may include multiple surfaces. The OIS carrier 1310 may include a first surface and a second surface located on opposite sides of each other, and a third surface and a fourth surface located on opposite sides of each other. The AF coil 1420 may be positioned between the first surface of the OIS carrier 1310 and the AF magnet 1410. The OIS-x magnet 1510 may be positioned on the third surface of the OIS carrier 1310. The OIS-y magnet 1610 may be positioned on the second surface of the OIS carrier 1310.

[0358] The OIS carrier 1310 may include grooves. The grooves may be "retractable member interference prevention grooves". The grooves may be formed on the upper surface of the OIS carrier 1310. The grooves may be formed as recesses on the upper surface of the OIS carrier 1310. The grooves may be positioned in a location corresponding to the elastic member 1830 to prevent interference between the OIS carrier 1310 and the elastic member 1830.

[0359] The OIS carrier 1310 may include a groove 1311. The groove 1311 may be an "OIS guide ball housing groove". An OIS guide ball 1820 may be placed in the groove 1311. The groove 1311 may be in direct contact with the OIS guide ball 1820. The groove 1311 may be formed as a recess in the lower surface of the OIS moving part 1300. The groove 1311 may be formed as a recess in the lower surface of the OIS carrier 1310. The groove 1311 may be positioned perpendicular to the optical axis. The groove 1311 may be recessed in the direction of the optical axis. The groove 1311 may include multiple grooves. The groove 1311 may include four grooves. The groove 1311 may be formed on the lower surface of the OIS carrier 1310.

[0360] The OIS carrier 1310 may include lateral stoppers. The lateral stoppers can limit the lateral stroke of the OIS carrier 1310. That is, when the OIS carrier 1310 moves to its maximum extent, the lateral stoppers of the OIS carrier 1310 may come into contact with one or more of the AF carrier 1210 and the base 1110. The lateral stoppers can be formed on the outer surface of the OIS carrier 1310. The lateral stoppers can protrude outward from the side of the OIS carrier 1310.

[0361] The OIS carrier 1310 may include a projection 1312. The projection 1312 can be coupled to an elastic member 1830. The projection 1312 may be a "coupling projection". The elastic member 1830 may include a hole into which the projection 1312 of the OIS carrier 1310 is inserted. The projection 1312 may be formed on the upper surface of the OIS carrier 1310.

[0362] The OIS carrier 1310 may include a groove 1313. The groove 1313 may be a "lens adhesive receiving groove". The groove 1313 may be formed on the inner circumferential surface of the OIS carrier 1310. The groove 1313 may be formed as a recess on the inner circumferential surface of the OIS carrier 1310. Adhesive can be injected between the lens and the OIS carrier 1310 through the groove 1313. Adhesive for bonding the lens and the OIS carrier 1310 can be placed in the groove 1313.

[0363] The OIS carrier 1310 may include a mounting section. The mounting section may be a "magnetic mounting section." Magnets 1510 and 1620 may be placed in the mounting section. The mounting section may be formed by a groove, for example.

[0364] The lens drive unit 1010 may include a drive unit. The drive unit can move a movable part relative to the fixed part 1100. The drive unit may include an AF drive unit 1400. The drive unit may include an OIS drive unit. The drive unit may include an OIS-x drive unit 1500. The drive unit may include an OIS-y drive unit 1600. The drive unit may include a coil and a magnet.

[0365] The lens drive unit 1010 may include an AF drive unit 1400. The AF drive unit 1400 can move the AF moving unit 1200 in the optical axis direction. The AF drive unit 1400 can move the AF carrier 1210 in the optical axis direction. The AF drive unit 1400 can move the AF carrier 1210 in the optical axis direction via electromagnetic force. The AF drive unit 1400 may include a coil and a magnet.

[0366] The lens drive device 1010 may include an AF magnet 1410 and an AF coil 1420 that move the AF moving unit 1200 in the optical axis direction.

[0367] In a second embodiment of the present invention, the interaction between the AF coil 1420 and the AF magnet 1410 allows the AF carrier 1210 and the OIS carrier 1310 to move in the optical axis direction. The AF coil 1420, AF carrier 1210, and OIS carrier 1310 can move together in the optical axis direction.

[0368] The lens drive device 1010 may include an AF magnet 1410. The AF drive unit 1400 may include an AF magnet 1410. The AF magnet 1410 may be an "AF magnet". The AF magnet 1410 may be a permanent magnet. The AF magnet 1410 may be placed on the fixing part 1100. The AF magnet 1410 may be placed on the base 1110. The AF magnet 1410 may be placed on the cover 1120. The AF magnet 1410 may be placed on the side plate 1122 of the cover 1120. The AF magnet 1410 may be placed on the outer surface of the base 1110. The AF magnet 1410 may be placed on the inner surface of the base 1110. The AF magnet 1410 may be fixed to the base 1110. The AF magnet 1410 may be coupled to the base 1110. The AF magnet 1410 may be bonded to the base 1110 with adhesive. The AF magnet 1410 can be placed inside the cover 1120. The AF magnet 1410 can interact with the AF coil 1420. The AF magnet 1410 can interact electromagnetically with the AF coil 1420. The AF magnet 1410 can be placed in a position corresponding to the AF coil 1420. The AF magnet 1410 can face the AF coil 1420. The AF magnet 1410 can be opposed to the AF coil 1420. The AF magnet 1410 can overlap the AF coil 1420 in a direction perpendicular to the optical axis.

[0369] The AF magnet 1410 can be a four-pole magnet. The AF magnet 1410 may include a four-pole magnetized magnet. The AF magnet 1410 may include a first magnet section including an N pole and a S pole, and a second magnet section including an N pole and a S pole. The first magnet section and the second magnet section may be arranged vertically. The first magnet section and the second magnet section may be spaced apart vertically, with a neutral section positioned between the first magnet section and the second magnet section.

[0370] The lens drive device 1010 may include an AF coil 1420. The AF drive unit 1400 may include an AF coil 1420. The AF coil 1420 can interact with the AF magnet 1410. The AF coil 1420 can face the AF magnet 1410. The AF coil 1420 can face the AF magnet 1410. The AF coil 1420 can be positioned in a position corresponding to the AF magnet 1410. The AF coil 1420 can overlap the AF magnet 1410 in a direction perpendicular to the optical axis. The AF coil 1420 can be placed on the inner substrate 1720. The AF coil 1420 can be placed on the AF carrier 1210. The AF coil 1420 can be placed on the AF moving unit 1200.

[0371] In a second embodiment of the present invention, the AF coil 1420 can move in the optical axis direction. The AF coil 1420 can move in the optical axis direction by interaction with the AF magnet 1410 (see A in Figure 85). The AF coil 1420 can move together with the AF moving unit 1200. The AF coil 1420 can move in the optical axis direction together with the AF moving unit 1200. During the AF driving process, the AF coil 1420 can move in the optical axis direction together with the AF moving unit 1200. The AF coil 1420 can be positioned on the AF moving unit 1200. The AF coil 1420 can be fixed to the AF moving unit 1200. The AF coil 1420 can be coupled to the AF moving unit 1200.

[0372] The lens drive unit 1010 may include an AF sensor 1430. The AF drive unit 1400 may include an AF sensor 1430. The AF sensor 1430 may be a Hall sensor. The AF sensor 1430 may be located on the inner substrate 1720. The AF sensor 1430 may sense the AF magnet 1410. The AF sensor 1430 may sense the movement of the AF magnet 1410. The amount of movement or position of the AF magnet 1410 sensed by the AF sensor 1430 may be used for autofocus drive feedback.

[0373] The AF sensor 1430 can be a driver IC. The driver IC can include a sensing unit. The sensing unit can include a Hall element (Hall IC). The driver IC can be electrically connected to the AF coil 1420. The driver IC can supply current to the AF coil 1420.

[0374] The AF sensor 1430 can be positioned within the AF coil 1420. The AF sensor 1430 can overlap with the neutral portion of the AF magnet 1410 in a direction perpendicular to the optical axis. In a modified configuration, the AF sensor 1430 can be positioned outside the AF coil 1420. The AF sensor 1430 can overlap with the AF coil 1420 in the direction of the optical axis. The AF sensor 1430 can overlap with the AF coil 1420 in a direction perpendicular to the optical axis.

[0375] The lens drive unit 1010 may include an AF yoke 1440. The AF yoke 1440 can be positioned in a location corresponding to the AF magnet 1410. An attractive force can act between the AF yoke 1440 and the AF magnet 1410. This attractive force between the AF yoke 1440 and the AF magnet 1410 allows the AF guide ball 1810 to be maintained in contact with the base 1110 and the AF carrier 1210. The AF yoke 1440 can be positioned on the inner substrate 1720. The AF yoke 1440 can be positioned inside the AF coil 1420.

[0376] The lens drive device 1010 may include an AF attraction yoke 1450. The AF attraction yoke 1450 can exert an attractive force on the AF magnet 1410. The AF attraction yoke 1450 can be positioned inside the AF coil 1420. The AF attraction yoke 1450 can be positioned on the inner surface of the side plate portion 1721 of the inner substrate 1720. The AF attraction yoke 1450 can pull the AF magnet 1410 inward.

[0377] The lens drive unit 1010 may include an OIS drive unit. The OIS drive unit can move the OIS moving unit 1300 in a direction perpendicular to the optical axis. The OIS drive unit can move the OIS carrier 1310 in a direction perpendicular to the optical axis. The OIS drive unit can move the OIS carrier 1310 in a direction perpendicular to the optical axis via electromagnetic force.

[0378] The lens drive unit 1010 may include an OIS-x drive unit 1500. The OIS drive unit may include an OIS-x drive unit 1500. The OIS-x drive unit 1500 can move the OIS carrier 1310 in the x-axis direction perpendicular to the optical axis. The OIS-x drive unit 1500 can move the OIS carrier 1310 in the x-axis direction perpendicular to the optical axis via electromagnetic force. The OIS-x drive unit 1500 may include a coil and a magnet.

[0379] The lens drive device 1010 may include an OIS-x magnet 1510 and an OIS-x coil 1520 that move the OIS moving unit 1300 in the x-axis direction perpendicular to the optical axis direction.

[0380] In a second embodiment of the present invention, the OIS-x magnet 1510 and the OIS-x coil 1520 can move the OIS moving unit 1300 in a first direction perpendicular to the optical axis direction. In this case, the first direction can be the x-axis direction. The interaction between the OIS-x coil 1520 and the OIS-x magnet 1510 allows the OIS carrier 1310 to move in the x-axis direction perpendicular to the optical axis direction. The OIS-x magnet 1510 and the OIS carrier 1310 can move together in the x-axis direction.

[0381] The lens drive unit 1010 may include an OIS-x magnet 1510. The OIS drive unit may include an OIS-x magnet 1510. The OIS-x magnet 1510 may be an "OIS-x magnet". The OIS-x magnet 1510 may be a permanent magnet. The OIS-x magnet 1510 may be placed on the OIS moving unit 1300. The OIS-x magnet 1510 may be separated from the AF magnet 1410. The OIS-x magnet 1510 may be placed on the OIS carrier 1310. The OIS-x magnet 1510 may be placed on the outer surface of the OIS carrier 1310. The OIS-x magnet 1510 may be fixed to the OIS carrier 1310. The OIS-x magnet 1510 may be coupled to the OIS carrier 1310. The OIS-x magnet 1510 may be bonded to the OIS carrier 1310 with adhesive. The OIS-x magnet 1510 can be placed inside the cover 1120. The OIS-x magnet 1510 can interact with the OIS-x coil 1520. The OIS-x magnet 1510 can interact electromagnetically with the OIS-x coil 1520. The OIS-x magnet 1510 can be positioned in a position corresponding to the OIS-x coil 1520. The OIS-x magnet 1510 can face the OIS-x coil 1520. The OIS-x magnet 1510 can be opposed to the OIS-x coil 1520. The OIS-x magnet 1510 can overlap the OIS-x coil 1520 in a direction perpendicular to the optical axis. The OIS-x magnet 1510 can overlap the OIS-x coil 1520 in the x-axis direction. The OIS-x magnet 1510 can move in the x-axis direction perpendicular to the optical axis.

[0382] The OIS-x magnet 1510 can move in the push-pull direction in relation to the OIS-x coil 1520 through interaction with the OIS-x coil 1520 (see Figure 85B).

[0383] The OIS-x magnet 1510 can be a two-pole magnet. The OIS-x magnet 1510 can include a two-pole magnetized magnet. The OIS-x magnet 1510 can include a north pole and a south pole.

[0384] The OIS-x magnet 1510 may include a first magnet portion 1511. The first magnet portion 1511 may include a north pole and a south pole. The first magnet portion 1511 may be positioned on the first side surface of the OIS moving portion 1300. The first magnet portion 1511 may include an inner surface positioned on the first side surface of the OIS moving portion 1300 and an outer surface opposite the inner surface. The inner surface of the first magnet portion 1511 may be formed entirely of a north pole. The outer surface of the first magnet portion 1511 may be formed entirely of a south pole. Alternatively, the inner surface of the first magnet portion 1511 may be a south pole and the outer surface may be a north pole.

[0385] The OIS-x magnet 1510 may include a second magnet portion 1512. The second magnet portion 1512 may include a south pole and a north pole. The second magnet portion 1512 may be positioned on the first side surface of the OIS moving portion 1300. The second magnet portion 1512 may include an inner surface positioned on the first side surface of the OIS moving portion 1300 and an outer surface opposite the inner surface. The inner surface of the second magnet portion 1512 may be formed entirely as a south pole. The outer surface of the second magnet portion 1512 may be formed entirely as a north pole. Alternatively, the inner surface of the second magnet portion 1512 may be a north pole and the outer surface may be a south pole.

[0386] The first magnet section 1511 and the second magnet section 1512 can overlap in the y-axis direction perpendicular to the optical axis direction and the x-axis direction. The first magnet section 1511 and the second magnet section 1512 can be formed to the same size. The first magnet section 1511 and the second magnet section 1512 can be formed to the same shape.

[0387] In a second embodiment of the present invention, the first magnet portion 1511 and the second magnet portion 1512 of the OIS-x magnet 1510 can be formed with different polarities on their outer surfaces. However, in a modified example, the first magnet portion 1511 and the second magnet portion 1512 of the OIS-x magnet 1510 can be formed with the same polarity on their outer surfaces.

[0388] The polarity of the first magnet section 1511 facing the first coil section 1521 and the polarity of the second magnet section 1512 facing the second coil section 1522 can be different. The polarity of the entire region of the first magnet section 1511 facing the first coil section 1521 can be the south pole. The polarity of the entire region of the first magnet section 1511 facing the first coil section 1521 can be a single polarity. The polarity of the entire region of the second magnet section 1512 facing the second coil section 1522 can be the north pole. The polarity of the entire region of the second magnet section 1512 facing the second coil section 1522 can be a single polarity.

[0389] The OIS-x magnet 1510 may include a neutral portion 1513. The neutral portion 1513 may be positioned between the first magnet portion 1511 and the second magnet portion 1512. The neutral portion 1513 may have a lower polarity than the first magnet portion 1511 and the second magnet portion 1512. The neutral portion 1513 may have a lower magnetic field than the first magnet portion 1511 and the second magnet portion 1512. The neutral portion 1513 may not have polarity. The neutral portion 1513 may be nonpolar. The neutral portion 1513 may be nonmagnetic. The neutral portion 1513 may be nonmagnetic.

[0390] In a second embodiment of the present invention, the first magnet portion 1511, the second magnet portion 1512, and the neutral portion 1513 can be formed integrally. That is, the first magnet portion 1511, the second magnet portion 1512, and the neutral portion 1513 can be a single magnet with four poles magnetized.

[0391] As shown in Figure 86, in a modified example, the first magnet portion 1511 and the second magnet portion 1512 can be formed from different magnets. That is, the OIS-x magnet 1510a can include a first magnet portion 1511 and a second magnet portion 1512 formed from different magnets. The first magnet portion 1511 and the second magnet portion 1512 can be separated from each other. A non-neutral gap can be formed between the first magnet portion 1511 and the second magnet portion 1512. Alternatively, the first magnet portion 1511 and the second magnet portion 1512 can be in contact with each other even without a neutral portion or gap between them.

[0392] The lens drive unit 1010 may include an OIS-x coil 1520. The OIS drive unit may include an OIS-x coil 1520. The OIS-x coil 1520 can interact with the OIS-x magnet 1510. The OIS-x coil 1520 can move the OIS-x magnet 1510 in the x-axis direction perpendicular to the optical axis. The OIS-x coil 1520 can move the OIS-x magnet 1510 in the x-axis direction through interaction with the OIS-x magnet 1510. The OIS-x coil 1520 can face the OIS-x magnet 1510. The OIS-x coil 1520 can face the OIS-x magnet 1510. The OIS-x coil 1520 can be positioned in a position corresponding to the OIS-x magnet 1510. The OIS-x coil 1520 can overlap the OIS-x magnet 1510 in a direction perpendicular to the optical axis. The OIS-x coil 1520 can be placed on the inner substrate 1720. The OIS-x coil 1520 can be placed on the AF carrier 1210.

[0393] In a second embodiment of the present invention, the OIS-x coil 1520 can move together with the AF moving unit 1200. The OIS-x coil 1520 can move in the optical axis direction together with the AF moving unit 1200. During the AF driving process, the OIS-x coil 1520 can move in the optical axis direction together with the AF moving unit 1200. The OIS-x coil 1520 can be positioned on the AF moving unit 1200. The OIS-x coil 1520 can be fixed to the AF moving unit 1200. The OIS-x coil 1520 can be coupled to the AF moving unit 1200.

[0394] When current is applied to the OIS-x coil 1520, the OIS-x magnet 1510 can move away from or closer to the OIS-x coil 1520 in the x-axis direction.

[0395] The OIS-x coil 1520 may include a first coil section 1521. The first coil section 1521 can interact with the first magnet section 1511. The first coil section 1521 can overlap with the first magnet section 1511 in the x-axis direction. That is, the first coil section 1521 and the first magnet section 1511 can overlap in a direction that coincides with the driving direction due to their interaction.

[0396] The OIS-x coil 1520 may include a second coil section 1522. The second coil section 1522 can interact with the second magnet section 1512. The second coil section 1522 can overlap with the second magnet section 1512 in the x-axis direction. That is, the second coil section 1522 and the second magnet section 1512 can overlap in a direction that coincides with the driving direction due to their interaction.

[0397] The OIS-x coil 1520 can contain two coils. The OIS-x coil 1520 can contain two bundled coils. The OIS-x coil 1520 can contain two bundled coils. The OIS-x coil 1520 can contain two ring-shaped coils. The OIS-x coil 1520 can contain two coil units. The OIS-x coil 1520 can contain two split coils. The OIS-x coil 1520 can be separated into two coils. The OIS-x coil 1520 can be separated into two regions. Each of the first coil section 1521 and the second coil section 1522 can contain a ring shape. The first coil section 1521 and the second coil section 1522 can be formed from separate coils.

[0398] The first coil section 1521 and the second coil section 1522 can be connected. The first coil section 1521 can be electrically connected to the second coil section 1522. In this case, the winding direction of the first coil section 1521 may be opposite to the winding direction of the second coil section 1522. In this case, when a current is applied, the direction of the electromagnetic force induced in the first coil section 1521 and the second coil section 1522 can be reversed.

[0399] In a modified configuration, the first coil section 1521 and the second coil section 1522 may be wound in the same direction. In this case, the direction of the current applied to the first coil section 1521 and the second coil section 1522 may be opposite.

[0400] The lens drive unit 1010 may include an OIS-x sensor 1530. The OIS drive unit may include an OIS-x sensor 1530. The OIS-x sensor 1530 may be placed on the inner substrate 1720. The OIS-x sensor 1530 may include a Hall sensor. The OIS-x sensor 1530 may sense the OIS-x magnet 1510. The OIS-x sensor 1530 may sense the magnetic force of the OIS-x magnet 1510. The OIS-x sensor 1530 may be placed below the OIS-x magnet 1510. The OIS-x sensor 1530 may overlap the OIS-x magnet 1510 in the optical axis direction. In a modified example, the OIS-x sensor 1530 may be placed inside the OIS-x coil 1520. The OIS-x sensor 1530 may overlap the OIS-x coil 1520 in the optical axis direction. The OIS-x sensor 1530 can overlap the OIS-x coil 1520 in a direction perpendicular to the optical axis. The OIS-x sensor 1530 can face the OIS-x magnet 1510. The OIS-x sensor 1530 can be positioned in a location corresponding to the OIS-x magnet 1510. The OIS-x sensor 1530 can sense the movement of the OIS-x magnet 1510. The amount of movement or position of the OIS-x magnet 1510 sensed by the OIS-x sensor 1530 can be used for feedback to drive image stabilization in the x-axis direction.

[0401] The lens drive unit 1010 may include an OIS-x yoke 1540. The OIS-x yoke 1540 can be positioned on the OIS-x magnet 1510. The OIS-x yoke 1540 can be positioned between the OIS-x magnet 1510 and the OIS carrier 1310. The OIS-x yoke 1540 can prevent magnetic flux leakage from the OIS-x magnet 1510 and improve the interaction force with the OIS-x coil 1520.

[0402] The lens drive unit 1010 may include an OIS-y drive unit 1600. The OIS drive unit may include an OIS-y drive unit 1600. The OIS-y drive unit 1600 can move the OIS carrier 1310 in the y-axis direction perpendicular to the optical axis and all x-axis directions. The OIS-y drive unit 1600 can move the OIS carrier 1310 in the y-axis direction perpendicular to the optical axis and all x-axis directions via electromagnetic force. The OIS-y drive unit 1600 may include a coil and a magnet.

[0403] The lens drive device 1010 may include an OIS-y magnet 1610 and an OIS-y coil 1620 that move the OIS moving unit 1300 in the y-axis direction perpendicular to the optical axis direction and the x-axis direction.

[0404] In a second embodiment of the present invention, the OIS-y magnet 1610 and the OIS-y coil 1620 can move the OIS moving unit 1300 in a second direction perpendicular to the optical axis direction and the first direction. In this case, the second direction can be the y-axis direction. Through the interaction of the OIS-y coil 1620 and the OIS-y magnet 1610, the OIS carrier 1310 can move in the y-axis direction which is perpendicular to the optical axis direction and the x-axis direction. The OIS-y magnet 1610 and the OIS carrier 1310 can move together in the y-axis direction. The OIS-y magnet 1610 can overlap with the AF magnet 1410 in the second direction. The OIS-y magnet 1610 can overlap with the AF magnet 1410 in the y-axis direction.

[0405] The lens drive unit 1010 may include an OIS-y magnet 1610. The OIS-y drive unit 1600 may include an OIS-y magnet 1610. The OIS-y magnet 1610 may be an "OIS-y magnet". The OIS-y magnet 1610 may be a permanent magnet. The OIS-y magnet 1610 may be placed on the OIS moving unit 1300. The OIS-y magnet 1610 may be separated from the OIS-x magnet 1510. The OIS-y magnet 1610 may be separated from the AF magnet 1410. The OIS-y magnet 1610 may be placed on the OIS carrier 1310. The OIS-y magnet 1610 may be placed on the outer surface of the OIS carrier 1310. The OIS-y magnet 1610 may be fixed to the OIS carrier 1310. The OIS-y magnet 1610 may be coupled to the OIS carrier 1310. The OIS-y magnet 1610 can be bonded to the OIS carrier 1310 with adhesive. The OIS-y magnet 1610 can be placed inside the cover 1120. The OIS-y magnet 1610 can interact with the OIS-y coil 1620.

[0406] The OIS-y magnet 1610 can interact electromagnetically with the OIS-y coil 1620. The OIS-y magnet 1610 can be positioned in a position corresponding to the OIS-y coil 1620. The OIS-y magnet 1610 can face the OIS-y coil 1620. The OIS-y magnet 1610 can be opposed to the OIS-y coil 1620. The OIS-y magnet 1610 can overlap the OIS-y coil 1620 in a direction perpendicular to the optical axis. The OIS-y magnet 1610 can overlap the OIS-y coil 1620 in the y-axis direction. The OIS-y magnet 1610 can move in the y-axis direction.

[0407] The OIS-y magnet 1610 can move in the push-pull direction with the OIS-y coil 1620 through interaction with the OIS-y coil 1620 (see Figure 85C).

[0408] The OIS-y magnet 1610 can be a two-pole magnet. The OIS-y magnet 1610 can be a two-pole magnetized magnet. The OIS-y magnet 1610 can have a north pole and a south pole.

[0409] The OIS-y magnet 1610 may include a third magnet portion 1611. The third magnet portion 1611 may include a north pole and a south pole. The third magnet portion 1611 may be positioned on the fourth side surface of the OIS moving portion 1300. The third magnet portion 1611 may include an inner surface positioned on the fourth side surface of the OIS moving portion 1300 and an outer surface opposite the inner surface. The inner surface of the third magnet portion 1611 may be formed entirely of a north pole. The outer surface of the third magnet portion 1611 may be formed entirely of a south pole. Alternatively, the inner surface of the third magnet portion 1611 may be a south pole and the outer surface may be a north pole.

[0410] The OIS-y magnet 1610 may include a fourth magnet portion 1612. The fourth magnet portion 1612 may include a south pole and a north pole. The fourth magnet portion 1612 may be positioned on the fourth side surface of the OIS moving portion 1300. The fourth magnet portion 1612 may include an inner surface positioned on the fourth side surface of the OIS moving portion 1300 and an outer surface opposite the inner surface. The inner surface of the fourth magnet portion 1612 may be formed entirely as a south pole. The outer surface of the fourth magnet portion 1612 may be formed entirely as a north pole. Alternatively, the inner surface of the fourth magnet portion 1612 may be a north pole and the outer surface may be a south pole.

[0411] The third magnet section 1611 and the fourth magnet section 1612 can overlap in the y-axis direction perpendicular to the optical axis direction and the x-axis direction. The third magnet section 1611 and the fourth magnet section 1612 can be formed to the same size. The third magnet section 1611 and the fourth magnet section 1612 can be formed to the same shape.

[0412] In a second embodiment of the present invention, the third magnet portion 1611 and the fourth magnet portion 1612 of the OIS-y magnet 1610 can be formed with different polarities on their outer surfaces. However, in a modified example, the third magnet portion 1611 and the fourth magnet portion 1612 of the OIS-y magnet 1610 can be formed with the same polarity on their outer surfaces.

[0413] The polarity of the third magnet portion 1611 facing the third coil portion 1621 and the polarity of the fourth magnet portion 1612 facing the fourth coil portion 1622 can be different. The polarity of the entire region of the third magnet portion 1611 facing the third coil portion 1621 can be the south pole. The polarity of the entire region of the third magnet portion 1611 facing the third coil portion 1621 can be a single polarity. The polarity of the entire region of the fourth magnet portion 1612 facing the fourth coil portion 1622 can be the north pole. The polarity of the entire region of the fourth magnet portion 1612 facing the fourth coil portion 1622 can be a single polarity.

[0414] The OIS-y magnet 1610 may include a neutral portion 1613. The neutral portion 1613 may be positioned between the third magnet portion 1611 and the fourth magnet portion 1612. The neutral portion 1613 may have a lower polarity than the third magnet portion 1611 and the fourth magnet portion 1612. The neutral portion 1613 may have no polarity.

[0415] In a second embodiment of the present invention, the third magnet portion 1611, the fourth magnet portion 1612, and the neutral portion 1613 can be formed integrally. That is, the third magnet portion 1611, the fourth magnet portion 1612, and the neutral portion 1613 can be a single magnet with four poles magnetized.

[0416] As shown in Figure 86, in a modified example, the third magnet portion 1611 and the fourth magnet portion 1612 can be formed from different magnets. That is, the OIS-y magnet 1610a can include a third magnet portion 1611 and a fourth magnet portion 1612 formed from different magnets. The third magnet portion 1611 and the fourth magnet portion 1612 can be separated from each other. A non-neutral gap can be formed between the third magnet portion 1611 and the fourth magnet portion 1612. Alternatively, the third magnet portion 1611 and the fourth magnet portion 1612 can be in contact with each other even without a neutral portion or gap between them.

[0417] The lens drive unit 1010 may include an OIS-y coil 1620. The OIS-y drive unit 1600 may include an OIS-y coil 1620. The OIS-y coil 1620 can interact with the OIS-y magnet 1610. The OIS-y coil 1620 can be positioned on the opposite side of the AF coil 1420 with respect to the optical axis. The OIS-y coil 1620 can move the OIS-y magnet 1610 in the y-axis direction, which is perpendicular to the optical axis and the x-axis. The OIS-y coil 1620 can move the OIS-y magnet 1610 in the y-axis direction through interaction with the OIS-y magnet 1610. The OIS-y coil 1620 can face the OIS-y magnet 1610. The OIS-y coil 1620 can face the OIS-y magnet 1610. The OIS-y coil 1620 can be positioned in a position corresponding to the OIS-y magnet 1610. The OIS-y coil 1620 can overlap the OIS-y magnet 1610 in a direction perpendicular to the optical axis. The OIS-y coil 1620 can be placed on the inner substrate 1720. The OIS-y coil 1620 can be placed on the AF carrier 1210.

[0418] In a second embodiment of the present invention, the OIS-y coil 1620 can move together with the AF moving unit 1200. The OIS-y coil 1620 can move in the optical axis direction together with the AF moving unit 1200. During the AF driving process, the OIS-y coil 1620 can move in the optical axis direction together with the AF moving unit 1200. The OIS-y coil 1620 can be positioned on the AF moving unit 1200. The OIS-y coil 1620 can be fixed to the AF moving unit 1200. The OIS-y coil 1620 can be coupled to the AF moving unit 1200.

[0419] When current is applied to the OIS-y coil 1620, the OIS-y magnet 1610 can move away from or closer to the OIS-y coil 1620 in the y-axis direction.

[0420] The OIS-y coil 1620 may include a third coil section 1621. The third coil section 1621 can interact with the third magnet section 1611. The third coil section 1621 can overlap with the third magnet section 1611 in the x-axis direction. That is, the third coil section 1621 and the third magnet section 1611 can overlap in a direction that coincides with the driving direction due to their interaction.

[0421] The OIS-y coil 1620 may include a fourth coil section 1622. The fourth coil section 1622 can interact with the fourth magnet section 1612. The fourth coil section 1622 can overlap with the fourth magnet section 1612 in the x-axis direction. That is, the fourth coil section 1622 and the fourth magnet section 1612 can overlap in a direction that coincides with the driving direction due to their interaction.

[0422] The OIS-y coil 1620 can contain two coils. The OIS-y coil 1620 can contain two bundled coils. The OIS-y coil 1620 can contain two bundled coils. The OIS-y coil 1620 can contain two ring-shaped coils. The OIS-y coil 1620 can contain two coil units. The OIS-y coil 1620 can contain two split coils. The OIS-y coil 1620 can be separated into two coils. The OIS-y coil 1620 can be separated into two regions. The third coil section 1621 and the fourth coil section 1622 can each contain a ring shape. The third coil section 1621 and the fourth coil section 1622 can be formed from separate coils.

[0423] The third coil section 1621 and the fourth coil section 1622 can be connected. The third coil section 1621 can be electrically connected to the fourth coil section 1622. In this case, the winding direction of the third coil section 1621 may be opposite to the winding direction of the fourth coil section 1622. In this case, when current is applied, the direction of the electromagnetic force induced in the third coil section 1621 and the fourth coil section 1622 may be opposite.

[0424] In a modified example, the third coil section 1621 and the fourth coil section 1622 may be wound in the same direction. In this case, the direction of the current applied to the third coil section 1621 and the fourth coil section 1622 may be opposite.

[0425] The lens drive unit 1010 may include an OIS-y sensor 1630. The OIS-y drive unit 1600 may include an OIS-y sensor 1630. The OIS-y sensor 1630 may be placed on the inner substrate 1720. The OIS-y sensor 1630 may include a Hall sensor. The OIS-y sensor 1630 may sense the OIS-y magnet 1610. The OIS-y sensor 1630 may sense the magnetic force of the OIS-y magnet 1610. The OIS-y sensor 1630 may be placed below the OIS-y magnet 1610. The OIS-y sensor 1630 may overlap the OIS-y magnet 1610 in the direction of the optical axis. The OIS-y sensor 1630 may overlap the OIS-y magnet 1610 in a direction perpendicular to the optical axis. In a modified configuration, the OIS-y sensor 1630 can be positioned within the OIS-y coil 1620. The OIS-y sensor 1630 can overlap the OIS-y coil 1620 in the optical axis direction. The OIS-y sensor 1630 can face the OIS-y magnet 1610. The OIS-y sensor 1630 can be positioned in a location corresponding to the OIS-y magnet 1610. The OIS-y sensor 1630 can sense the movement of the OIS-y magnet 1610. The amount of movement or position of the OIS-y magnet 1610 sensed by the OIS-y sensor 1630 can be used for feedback of the y-axis direction image stabilization drive.

[0426] The lens drive unit 1010 may include an OIS-y yoke 1640. The OIS-y yoke 1640 can be positioned on the OIS-y magnet 1610. The OIS-y yoke 1640 can be positioned between the OIS-y magnet 1610 and the OIS carrier 1310. The OIS-y yoke 1640 can prevent magnetic flux leakage from the OIS-y magnet 1610 and improve the interaction force with the OIS-y coil 1620.

[0427] Viewed from above, the AF magnet 1410, AF coil 1420, OIS-y magnet 1610, and OIS-y coil 1620 can be sequentially arranged on a virtual straight line. Viewed from above, the AF magnet 1410, AF coil 1420, OIS-y magnet 1610, and OIS-y coil 1620 can be sequentially arranged on a virtual straight line. Viewed from above, the AF magnet 1410, AF coil 1420, OIS-y magnet 1610, and OIS-y coil 1620 can be sequentially arranged. Viewed from above, the AF magnet 1410, AF coil 1420, OIS-y magnet 1610, and OIS-y coil 1620 can be sequentially arranged in the y-axis direction. Viewed from above, the AF magnet 1410, AF coil 1420, OIS-y magnet 1610, and OIS-y coil 1620 can overlap in the y-axis direction.

[0428] The lens drive device 1010 may include substrates 1710 and 1720. Substrates 1710 and 1720 may include flexible printed circuit boards (FPCBs). Substrates 1710 and 1720 can be electrically connected to coils 1420, 1520, and 1620. Substrates 1710 and 1720 can be electrically connected to sensors 1430, 1530, and 1630.

[0429] The lens drive unit 1010 may include an outer substrate 1710. The outer substrate 1710 may be placed on the base 1110. The outer substrate 1710 may be electrically connected to coils 1420, 1520, and 1620. The outer substrate 1710 may be electrically connected to sensors 1430, 1530, and 1630. The outer substrate 1710 may connect the AF carrier 1210 to the base 1110. The outer substrate 1710 may elastically connect the AF carrier 1210 to the base 1110. The outer substrate 1710 may connect the fixed part 1100 to the inner substrate 1720. The outer substrate 1710 may support the AF carrier 1210 so that it is movable relative to the base 1110. The outer substrate 1710 may guide the AF carrier 1210 to move in the optical axis direction relative to the base 1110. The outer substrate 1710 may include a flexible substrate. The outer substrate 1710 may include an FPCB (flexible printed circuit board). The outer substrate 1710 may include an elastic portion. The outer substrate 1710 may include an elastic member. The outer substrate 1710 may include an outer portion 1711 that is positioned on the fixing portion 1100, and a connecting portion 1712 that extends from the outer portion 1711 and connects to the inner substrate 1720.

[0430] The outer substrate 1710 may include an outer portion 1711. The outer portion 1711 may be positioned on the base 1110. The outer portion 1711 may be formed to wrap around the sides of the base 1110. The outer portion 1711 may be positioned on three sides of the base 1110. The outer portion 1711 may include two terminal portions. The two terminal portions may be positioned opposite each other with respect to the optical axis. The terminal portion may include terminal 1711-1.

[0431] The outer substrate 1710 may include terminal 1711-1. The outer portion 1711 of the outer substrate 1710 may include terminal 1711-1. Terminal 1711-1 can be electrically connected to terminal 1712-1. Terminal 1711-1 can be located at the lower end of the base 1110. Terminal 1711-1 can be coupled to the printed circuit board 1050. Terminal 1711-1 can be coupled to the terminals of the printed circuit board 1050 by solder. Terminal 1711-1 can be coupled to the terminals of the printed circuit board 1050 via a conductive member. Terminal 1711-1 can be connected to the terminals of the printed circuit board 1050. Terminal 1711-1 can be electrically connected to the terminals of the printed circuit board 1050.

[0432] The outer substrate 1710 may include a connecting portion 1712. The connecting portion 1712 may be an "extension." The connecting portion 1712 may be a "leg." The connecting portion 1712 may extend from the outer portion 1711. At least a portion of the connecting portion 1712 may move with the AF carrier 1210. The extension may extend from the outer portion 1711. At least a portion of the extension may move with the AF carrier 1210. At least a portion of the connecting portion 1712 may be positioned perpendicular to the optical axis. The connecting portion 1712 of the outer substrate 1710 may be coupled to the inner substrate 1720 so that the inner substrate 1720 can move in the optical axis direction. At least a portion of the connecting portion 1712 may be positioned parallel to the optical axis direction.

[0433] The connecting portion 1712 may include multiple connecting portions. The connecting portion 1712 may include a first connecting portion and a second connecting portion. The second connecting portion may be positioned below the first connecting portion.

[0434] The outer substrate 1710 may include terminal 1712-1. The connecting portion 1712 of the outer substrate 1710 may include terminal 1712-1. Terminal 1712-1 can be coupled to terminal 1721-1 of the inner substrate 1720. Terminal 1712-1 of the outer substrate 1710 can be coupled to terminal 1721-1 of the inner substrate 1720 by solder. Terminal 1712-1 of the outer substrate 1710 can be coupled to terminal 1721-1 of the inner substrate 1720 via a conductive member. Terminal 1712-1 of the outer substrate 1710 can be connected to terminal 1721-1 of the inner substrate 1720. Terminal 1712-1 of the outer substrate 1710 can be electrically connected to terminal 1721-1 of the inner substrate 1720.

[0435] The outer substrate 1710 may include a bent portion 1712-2. The bent portion 1712-2 may be formed on the connecting portion 1712. The bent portion 1712-2 may be formed on the first connecting portion and the second connecting portion, respectively. The bent portion 1712-2 may include a shape that is bent at least 55 times. The bent portion 1712-2 may include a U-shaped bent shape. The bent portion 1712-2 may include a rounded shape. The bent portion 1712-2 may include a portion that is positioned parallel to the optical axis.

[0436] Hereinafter, either "terminal 1711-1" or "terminal 1712-1" of the outer circuit board 1710 will be referred to as the "first terminal," and the other one as the "second terminal."

[0437] The lens drive unit 1010 may include an inner substrate 1720. The inner substrate 1720 may be electrically connected to coils 1420, 1520, and 1620. The inner substrate 1720 may be electrically connected to sensors 1430, 1530, and 1630. The inner substrate 1720 may be placed on the AF moving part 1200. The inner substrate 1720 may be placed on the AF carrier 1210. The inner substrate 1720 may be fixed to the AF carrier 1210. The inner substrate 1720 may be coupled to the AF carrier 1210. The inner substrate 1720 may be bonded to the AF carrier 1210 with adhesive. The inner substrate 1720 may include a flexible substrate. The inner substrate 1720 may include an FPCB (flexible Printed Circuit Board). The inner substrate 1720 may include an elastic portion. The inner substrate 1720 may include an elastic member.

[0438] The inner substrate 1720 can be connected to the lower surface of the holder member 1220. The preloading member 1230 can be connected to the inner substrate 1720.

[0439] The inner substrate 1720 may include side plate portions 1721. The side plate portions 1721 may be positioned on the side of the AF carrier 1210. The side plate portions 1721 may be positioned on the outer surface of the AF carrier 1210. In other embodiments, the side plate portions 1721 may be positioned on the inner surface of the AF carrier 1210. The side plate portions 1721 of the inner substrate 1720 may include multiple parts. The side plate portions 1721 may include first to fourth parts.

[0440] The inner substrate 1720 may include a first part. The first part may be located on the AF carrier 1210. The AF coil 1420 may be located on the first part of the inner substrate 1720. The AF sensor 1430 may be located on the first part of the inner substrate 1720. The AF yoke 1440 may be located on the first part of the inner substrate 1720.

[0441] The inner substrate 1720 may include a second portion. The second portion may be located on the opposite side of the first portion. The second portion may be located on the AF carrier 1210. The second portion may be located on the second side of the AF carrier 1210. The OIS-y coil 1620 may be located on the second portion of the inner substrate 1720. The OIS-y sensor 1630 may be located on the second portion of the inner substrate 1720. More specifically, the OIS-y sensor 1630 may be located on the lower plate portion 1722 which is folded and located on the upper side of the second portion of the inner substrate 1720. The OIS-y sensor 1630 may be located on the lower surface of the lower plate portion 1722.

[0442] The inner substrate 1720 may include a third portion. The third portion may be positioned on the AF carrier 1210. The third portion may be positioned on the third side of the AF carrier 1210. The OIS-x coil 1520 may be positioned on the third portion of the inner substrate 1720. The OIS-x sensor 1530 may be positioned on the third portion of the inner substrate 1720. More specifically, the OIS-x sensor 1530 may be positioned on the lower plate portion 1722 which is folded and positioned on the upper side of the third portion of the inner substrate 1720. The OIS-x sensor 1530 may be positioned on the lower surface of the lower plate portion 1722.

[0443] The inner substrate 1720 may include a fourth portion. The fourth portion may be located on the opposite side of the third portion. The fourth portion may be located on the AF carrier 1210. The fourth portion may be located on the fourth side of the AF carrier 1210.

[0444] The inner substrate 1720 may include terminal 1721-1. Terminal 1721-1 may be located in the fourth portion of the inner substrate 1720. Terminal 1721-1 can be electrically connected to coils 1420, 1520, and 1620. Terminal 1721-1 can be electrically connected to sensors 1430, 1530, and 1630. Terminal 1721-1 can be coupled to terminal 1712-1 of the outer substrate 1710.

[0445] The inner substrate 1720 may include terminal 1722-1. Terminal 1722-1 can be positioned on the lower plate portion 1722 of the inner substrate 1720. Terminal 1722-1 can be electrically connected to coils 1420, 1520, and 1620. Terminal 1722-1 can be electrically connected to sensors 1430, 1530, and 1630. Terminal 1722-1 can be coupled to terminal 1712-1 of the outer substrate 1710.

[0446] The inner board 1720 may include a hole 1722-2. Through the hole 1722-2, terminal 1722-1 of the inner board 1720 can be soldered to terminal 1712-1 of the outer board 1710.

[0447] The lens drive 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.

[0448] The lens drive device 1010 may include an AF guide ball 1810. The AF guide ball 1810 can guide the movement of the AF moving part 1200 relative to the fixed part 1100 in the optical axis direction. The AF guide ball 1810 can guide the movement of the AF carrier 1210 relative to the base 1110 in the optical axis direction. The AF guide ball 1810 can be positioned between the fixed part 1100 and the AF moving part 1200. The AF guide ball 1810 can be positioned between the base 1110 and the AF carrier 1210. The AF guide ball 1810 can be positioned between the housing and the base 1110. The AF guide ball 1810 can be positioned between the base 1110 and the AF carrier 1210 in the x direction. Alternatively, the AF guide ball 1810 can be positioned between the base 1110 and the AF carrier 1210 in the y direction. The AF guide ball 1810 can be positioned in a groove of the base 1110. The AF guide ball 1810 can be placed in the groove of the AF carrier 1210. The AF guide ball 1810 can be spherical. The AF guide ball 1810 can be made of metal. Grease can be applied to the surface of the AF guide ball 1810.

[0449] The AF guide ball 1810 can be positioned at the first corner of the base 1110. The AF guide ball 1810 can be positioned at the second corner diagonally opposite to the first corner of the base 1110. The AF guide ball 1810 can be positioned at both the first and second corners of the base 1110. The first and second corner regions of the fixed section 1100 can be positioned diagonally opposite to each other with respect to the optical axis. The AF guide ball 1810 can be positioned at both the first and second corner regions of the fixed section 1100. Two sets of AF guide balls 1810 can be positioned at both the first and second corners of the base 1110. In this case, one set may contain four balls. The two sets can be positioned on opposite sides of the column portion of the AF carrier 1210.

[0450] In a modified configuration, the AF guide ball 1810 can be positioned at the first and third corners. Alternatively, the AF guide ball 1810 can be positioned at the first and fourth corners. In other words, the AF guide ball 1810 does not have to be positioned diagonally.

[0451] When viewed from above, the AF guide ball 1810 may include a first unit ball positioned in the first corner region of the fixed portion 1100 and a second unit ball positioned in the second corner region diagonally opposite the first corner region of the fixed portion 1100. In this case, when viewed from above, the OIS guide ball 1820 may include a first guide member and a second guide member positioned between the first unit ball and the second unit ball of the AF guide ball 1810, spaced apart from each other and positioned diagonally opposite to each other.

[0452] When viewed from above, the AF guide ball 1810 may include a first unit ball and a second unit ball positioned in the first corner region of the fixed part 1100, and a third unit ball and a fourth unit ball positioned in the second corner region diagonally opposite the first corner region of the fixed part 1100. Two sets of the AF guide ball 1810 can be positioned in each corner.

[0453] The AF guide ball 1810 may include balls that overlap with the OIS guide ball 1820 in a direction perpendicular to the optical axis. At least a portion of the AF guide ball 1810 can overlap with the OIS guide ball 1820.

[0454] The AF guide ball 1810 may include an inner ball 1811. The inner ball 1811 can be placed in the column portion 1111 of the base 1110. The inner ball 1811 can be placed in the inner groove 1111-1 of the base 1110. The inner ball 1811 can be placed in the inner groove 1224-1 of the AF carrier 1210. The inner ball 1811 can be placed in the inner groove 1224-1 of the AF moving part 1200. The inner ball 1811 can be placed in the inner groove 1111-1 of the base 1110 and the inner groove 1224-1 of the AF carrier 1210. The inner ball 1811 can be placed between the inner groove 1111-1 of the base 1110 and the inner groove 1224-1 of the AF carrier 1210. The inner ball 1811 can be positioned between the AF moving part 1200 and the column part 1111 of the fixed part 1100.

[0455] The AF guide ball 1810 may include an outer ball 1812. The outer ball 1812 can be positioned in the outer wall portion 1112 of the base 1110. The outer ball 1812 can be positioned in the outer groove 1112-1 of the base 1110. The outer ball 1812 can be positioned in the outer groove 1224-2 of the AF carrier 1210. The outer ball 1812 can be positioned between the outer groove 1112-1 of the base 1110 and the outer groove 1224-2 of the AF carrier 1210. The outer ball 1812 can be positioned between the outer groove 1112-1 of the base 1110 and the outer groove 1224-2 of the AF carrier 1210. The outer ball 1812 can be positioned between the outer groove 1112-1 of the fixed portion 1100 and the outer groove 1224-2 of the AF moving portion 1200. The outer ball 1812 can be positioned between the AF moving part 1200 and the outer wall part 1112 of the fixed part 1100.

[0456] The inner ball 1811 can include multiple inner balls 1811. Multiple inner balls 1811 can be arranged in the optical axis direction. The inner ball 1811 can include four inner balls 1811. The inner ball 1811 can include first to fourth inner balls. Two of the four inner balls 1811 may have a large diameter, and the remaining two may have a small diameter. The two balls with larger diameters can be placed in the uppermost and lowermost positions. That is, two balls with smaller diameters can be placed between the two balls with larger diameters.

[0457] The inner ball 1811 may include the inner top layer ball 1811-1. The inner top layer ball 1811-1 can be positioned at the highest point among the inner balls 1811. The inner top layer ball 1811-1 can be positioned closest to the top plate 1121 of the cover 1120 among the inner balls 1811. The inner ball 1811 may include the inner bottom layer ball 1811-2. The inner bottom layer ball 1811-2 can be positioned at the lowest point among the inner balls 1811. The inner bottom layer ball 1811-2 can be positioned closest to the bottom plate portion of the base 1110 among the inner balls 1811. Multiple inner balls 1811 may include balls with a smaller diameter than the inner top layer ball 1811-1 and the inner bottom layer ball 1811-2, respectively. The multiple inner balls 1811 may include balls positioned between the uppermost inner ball 1811-1 and the lowermost inner ball 1811-2.

[0458] The outer ball 1812 can include multiple outer balls 1812. Multiple outer balls 1812 can be arranged in the optical axis direction. The outer ball 1812 can include four outer balls 1812. The outer ball 1812 can include first to fourth outer balls. Two of the four outer balls 1812 may have large diameters, and the remaining two may have small diameters. The two balls with large diameters can be placed in the uppermost and lowermost positions. That is, two balls with small diameters can be placed between the two balls with large diameters.

[0459] The outer ball 1812 may include the outer top layer ball 1812-1. The outer top layer ball 1812-1 can be positioned at the highest point of the outer ball 1812. The outer top layer ball 1812-1 can be positioned closest to the top plate 1121 of the cover 1120 of the outer ball 1812. The outer ball 1812 may include the outer bottom layer ball 1812-2. The outer bottom layer ball 1812-2 can be positioned at the lowest point of the outer ball 1812. The outer bottom layer ball 1812-2 can be positioned closest to the bottom plate portion of the base 1110 of the outer ball 1812. Multiple outer balls 1812 may include balls with a smaller diameter than the outer top layer ball 1812-1 and the outer bottom layer ball 1812-2, respectively. Multiple outer balls 1812 may include balls positioned between the outer top ball 1812-1 and the outer bottom ball 1812-2.

[0460] The AF guide ball 1810 may include a plurality of balls arranged in the direction of the optical axis. In this case, the plurality of balls may include the uppermost balls 1811-1 and 1812-1, which are positioned at the highest point, and the lowermost balls 1811-2 and 1812-2, which are positioned at the lowest point. The height at which the elastic member 1920 pressurizes the plate member 1910 can be positioned between the heights of the uppermost balls 1811-1 and 1812-1 and the heights of the lowermost balls 1811-2 and 1812-2.

[0461] The lens drive unit 1010 may include an OIS guide ball 1820. The OIS guide ball 1820 can guide the movement of the OIS carrier 1310 relative to the AF carrier 1210 in a direction perpendicular to the optical axis. The OIS guide ball 1820 can be positioned between the AF moving unit 1200 and the OIS moving unit 1300. The OIS guide ball 1820 can be positioned between the AF carrier 1210 and the OIS carrier 1310. The OIS guide ball 1820 can be positioned between the AF carrier 1210 and the underside of the OIS carrier 1310. The OIS guide ball 1820 can be positioned between the housing and the bobbin. The OIS guide ball 1820 can be positioned between the housing and the underside of the bobbin. The OIS guide ball 1820 can be positioned between the AF carrier 1210 and the OIS carrier 1310 in the optical axis direction.

[0462] The OIS guide ball 1820 can be placed on the protrusion 1231 of the preload member 1230. The OIS guide ball 1820 can be placed on the groove 1232 of the protrusion 1231. The OIS guide ball 1820 can be placed on the groove 1311 of the OIS moving part 1300. The OIS guide ball 1820 can be placed between the groove 1232 of the protrusion 1231 of the AF moving part 1200 and the groove 1311 of the OIS moving part 1300.

[0463] The OIS guide ball 1820 can be positioned between the preloading member 1230 of the AF carrier 1210 and the OIS carrier 1310. The OIS guide ball 1820 can be pressurized between the AF carrier 1210 and the OIS carrier 1310 by the pressure applied by the elastic members 1830 and 1850. The preloading member 1230 can pressurize the OIS guide ball 1820 upward during the process of coupling with the holder member 1220. The preloading member 1230 can pressurize the OIS guide ball 1820 toward the OIS carrier 1310 during the process of coupling with the holder member 1220. At this time, the restoring force of the elastic members 1830 and 1850 causes the OIS carrier 1310 to pressurize the OIS guide ball 1820 toward the preloading member 1230. Therefore, the OIS guide ball 1820 can be pressurized between the preloading member 1230 and the OIS carrier 1310.

[0464] The OIS guide ball 1820 can guide the OIS moving unit 1300 to move in the x-axis and y-axis directions. The OIS guide ball 1820 can guide the movement of the OIS moving unit 1300 in the x-axis and y-axis directions. The OIS guide ball 1820 can guide the OIS carrier 1310 to move in the x-axis and y-axis directions perpendicular to the optical axis direction relative to the AF carrier 1210. In other words, the OIS guide ball 1820 can guide the OIS carrier 1310 to move in the x-axis and y-axis directions. In other words, the OIS guide ball 1820 can guide movement in all directions of the x-axis and y-axis directions. For reference, compared to a comparative example in which a ball for guiding the x-axis direction and a ball for guiding the y-axis direction are provided separately, the size of the lens drive device 1010 can be minimized in the second embodiment of the present invention in which the ball for guiding the x-axis direction and the ball for guiding the y-axis direction are provided integrally. In particular, the height of the lens drive device 1010 in the optical axis direction can be reduced. This minimizes the height that protrudes from the smartphone, i.e., shoulder height. The OIS guide ball 1820 can contain multiple balls. The OIS guide ball 1820 can contain four balls.

[0465] In a modified example, the OIS guide ball 1820 may include separate balls for guiding x-axis drive and y-axis drive.

[0466] The lens drive device 1010 may include an elastic member. The elastic member may be formed to support the OIS drive. The elastic member may support the movement of the OIS moving part 1300. The elastic member may be formed to pressurize the OIS guide ball 1820. The elastic member may be formed so that the OIS guide ball 1820 alone guides both the OIS-x axis drive and the OIS-y axis drive. The elastic member may include a plate spring. The elastic member may include a wire. The elastic member may be elastic. The elastic member may be made of metal.

[0467] The elastic member can pressurize the OIS guide ball 1820 between the AF moving part 1200 and the OIS moving part 1300. The elastic member can pressurize the OIS moving part 1300 in the direction of the AF moving part 1200. The elastic member can pressurize the OIS moving part 1300 in the direction of the OIS moving part 1300. In this case, the elastic member may include an elastic member 1830 and a wire 1850.

[0468] The lens drive device 1010 may include an elastic member 1830. The elastic member 1830 may be an "upper elastic member". The elastic member 1830 may be an "upper spring". The elastic member 1830 may be a plate spring. The elastic member 1830 may have elasticity. The elastic member 1830 may be placed on the OIS moving part 1300. The elastic member 1830 may be coupled to the OIS moving part 1300. The elastic member 1830 may be connected to the OIS moving part 1300. The elastic member 1830 may be coupled to the upper surface of the OIS moving part 1300. The elastic member 1830 may be placed on the upper surface of the OIS moving part 1300. The elastic member 1830 may be placed on the upper part of the OIS carrier 1310. The elastic member 1830 may be placed on the OIS carrier 1310. The elastic member 1830 may be placed on the upper part of the OIS carrier 1310. The elastic member 1830 can be placed on the OIS carrier 1310. The elastic member 1830 can be positioned perpendicular to the optical axis.

[0469] The elastic member 1830 may include an inner portion 1831. The inner portion 1831 can be coupled to the OIS moving portion 1300. The elastic member 1830 may include an outer portion 1832. The outer portion 1832 can be coupled to the wire 1850. The elastic member 1830 may include a connecting portion 1833. The connecting portion 1833 can connect the inner portion 1831 and the outer portion 1832. The connecting portion 1833 can elastically connect the inner portion 1831 and the outer portion 1832. The connecting portion 1833 may include elasticity. The connecting portion 1833 may be an elastic portion. The connecting portion 1833 may be a "leg portion".

[0470] The inner portion 1831 of the elastic member 1830 can be positioned higher than the outer portion 1832. The inner portion 1831 of the elastic member 1830 can be positioned above the outer portion 1832. The inner portion 1831 of the elastic member 1830 can be positioned higher than the outer portion 1832 by a first distance. The reason why the inner portion 1831 of the elastic member 1830 is positioned higher than the outer portion 1832 may be due to the pressure applied by the preloading member 1230. With such a structure, the OIS guide ball 1820 can be maintained in contact with the preloading member 1230 of the AF carrier 1210 and the OIS carrier 1310.

[0471] The OIS carrier 1310 may include a first region that connects to the elastic member 1830. The wire 1850 may include a second region that connects to the elastic member 1830. The first region of the OIS carrier 1310 may be located above the second region of the wire 1850. The first region of the OIS carrier 1310 may be located approximately 0.2 to 0.6 mm above the second region of the wire 1850. The first region of the OIS carrier 1310 may be located approximately 0.3 to 0.5 mm above the second region of the wire 1850.

[0472] The lens drive device 1010 may include a wire 1850. The wire 1850 may be a "side elastic member". The wire 1850 may be a wire. The wire 1850 may be a wire spring. The wire 1850 may be a suspension wire. The wire 1850 may be elastic. The wire 1850 can connect the elastic member 1830 and the AF carrier 1210. The wire 1850 can connect the elastic member 1830 and the lower side of the AF carrier 1210. The wire 1850 can connect the elastic member 1830 and the housing. The wire 1850 can connect the elastic member 1830 and the lower side of the housing. The wire 1850 can elastically connect the elastic member 1830 and the AF carrier 1210. The wire 1850 can connect the elastic member 1830 and the metal member 1225 of the AF carrier 1210. The wire 1850 can elastically connect the elastic member 1830 and the metal member 1225 of the AF carrier 1210. The wire 1850 can be positioned parallel to the optical axis. The wire 1850 can be positioned in the direction of the optical axis.

[0473] The upper end of wire 1850 can be connected to the elastic member 1830. The first part of wire 1850 can be connected to the elastic member 1830. The lower end of wire 1850 can be connected to the AF moving part 1200. The lower end of wire 1850 can be connected to the lower surface of the AF moving part 1200. The second part of wire 1850 can be connected to the AF moving part 1200. The lower end of wire 1850 can be connected to the AF carrier 1210. The lower end of wire 1850 can be connected to the holder member 1220. The lower end of wire 1850 can be connected to the metal member 1225. The lower end of wire 1850 can be soldered to the metal member 1225. The lower end of wire 1850 can be welded to the metal member 1225. The lower end of wire 1850 can be connected to the metal member 1225 by conductive epoxy. The lower end of wire 1850 can be connected to metal member 1225 via a conductive material. The lower end of wire 1850 can be directly connected to metal member 1225. Wire 1850 can connect elastic member 1830 and AF moving part 1200. Wire 1850 can connect elastic member 1830 and AF carrier 1210. Wire 1850 can connect elastic member 1830 and holder member 1220. Wire 1850 can connect elastic member 1830 and metal member 1225.

[0474] The lens drive device 1010 may include a pressurizing member. The pressurizing member may be an "AF guide ball pressurizing member". The pressurizing member can pressurize the AF guide ball 1810. The pressurizing member can be formed to pressurize the ball. The AF guide ball 1810, pressurized by the pressurizing member, can be sandwiched between the fixed part 1100 and the AF moving part 1200. The AF guide ball 1810, pressurized by the pressurizing member, can be sandwiched between the base 1110 and the AF carrier 1210. The pressurizing member can be used to maintain the AF guide ball 1810 in contact with the fixed part 1100 and the AF moving part 1200. The pressurizing member can be used to maintain the AF guide ball 1810 in contact with the base 1110 and the AF carrier 1210.

[0475] The lens drive device 1010 may include a plate member 1910. The pressurizing member may include a plate member 1910. The plate member 1910 may be placed on the AF guide ball 1810. The plate member 1910 may be in contact with the AF guide ball 1810. The plate member 1910 may be placed on the elastic member 1920. The plate member 1910 may be placed on the base 1110. The plate member 1910 may be placed between the elastic member 1920 and the AF guide ball 1810. The plate member 1910 can pressurize the AF guide ball 1810 toward the AF carrier 1210 by the elastic member 1920. The plate member 1910 may be placed between the AF guide ball 1810 and the fixing part 1100. The plate member 1910 may be placed between the inner ball 1811 and the column portion 1111 of the fixing part 1100.

[0476] The lens drive device 1010 may include an elastic member 1920. The pressurizing member may include an elastic member 1920. The elastic member 1920 may be a spring. The elastic member 1920 may be a tapered spring. The elastic member 1920 may be positioned on the fixed part 1100. The elastic member 1920 can pressurize the AF guide ball 1810 toward the AF moving part 1200. The elastic member 1920 can pressurize the plate member 1910 toward the AF guide ball 1810. The elastic member 1920 may be positioned between the plate member 1910 and the fixed part 1100. The elastic member 1920 can push the plate member 1910 out of the fixed part 1100. The elastic member 1920 can pressurize the plate member 1910 in the opposite direction from the fixed part 1100. The elastic member 1920 can be positioned between the plate member 1910 and the column portion 1111 of the fixing portion 1100. The elastic member 1920 can be positioned in the inner groove 1111-1 of the fixing portion 1100. The elastic member 1920 can pressurize the AF guide ball 1810 between the fixing portion 1100 and the AF moving portion 1200.

[0477] In a modified configuration, the elastic member 1920 can be placed on the AF moving part 1200. In this case, the elastic member 1920 can press down on the AF guide ball 1810 toward the fixed part 1100. The elastic member 1920 can be placed on either the fixed part 1100 or the AF moving part 1200, and can press down on the AF guide ball 1810 toward the other of the fixed part 1100 or the AF moving part 1200. The elastic member 1920 can press down on the plate member 1910. The elastic member 1920 can be placed between the plate member 1910 and the base 1110. The elastic member 1920 can be placed between the AF guide ball 1810 and the base 1110. The elastic member 1920 can be placed on the base 1110. The elastic member 1920 can be placed in the inner groove 1111-1 of the base 1110. The elastic member 1920 can press the AF guide ball 1810 toward the AF carrier 1210. This allows the AF guide ball 1810 to maintain contact with the plate member 1910 and the AF carrier 1210.

[0478] The elastic member 1920 may include a bent portion. The bent portion may include a folded shape. The bent portion may include multiple bent portions. The bent portion may include three bent portions. The elastic member 1920 may be folded at least 56 times. The elastic member 1920 may include an upper bent portion 1921. The elastic member 1920 may include a lower bent portion 1922. The elastic member 1920 may include a connecting bent portion 1923. The connecting bent portion 1923 may be positioned between the upper bent portion 1921 and the lower bent portion 1922. The upper bent portion 1921 may form an obtuse angle. The lower bent portion 1922 may form an obtuse angle. The connecting bent portion 1923 may form an obtuse angle. The upper bent portion 1921 may be positioned on the fixing portion 1100. The lower bent portion 1922 may be positioned on the fixing portion 1100. The connecting bend portion 1923 can be positioned on the plate member 1910. With this structure, the elastic member 1920 can push the plate member 1910 out of the fixing portion 1100. The connecting bend portion 1923 contacts the plate member 1910 and can press the plate member 1910 toward the AF guide ball 1810.

[0479] The height at which the elastic member 1920 presses on the plate member 1910 can be lower than the height of the lower-positioned ball among the inner top layer cardboard 1811-1 and the outer top layer cardboard 1812-1, and higher than the height of the higher-positioned ball among the inner bottom layer cardboard 1811-2 and the outer bottom layer cardboard 1812-2. More specifically, as shown in Figure 97(a), when the AF moving part 1200 moves upward, the height (b) at which the elastic member 1920 presses on the plate member 1910 can be higher than the height (a) of the higher-positioned ball among the inner bottom layer cardboard 1422 and the outer bottom layer cardboard 1412. A height gap (c) can exist between the two points. Furthermore, as shown in Figure 97(b), when the AF moving part 1200 moves downward, the height (e) of the point where the elastic member 1920 presses against the plate member 1910 can be lower than the height (d) of the lower of the inner uppermost cardboard 1421 and the outer uppermost cardboard 1411. A height gap (f) can exist between the two points. This prevents or minimizes the generation of a moment caused by the elastic member 1920 pressing against the plate member 1910. In other words, it prevents the plate member 1910 from tilting or detaching.

[0480] The lens drive device 1010 may include a reinforcing member 1930. The reinforcing member 1930 may be placed on the base 1110. The reinforcing member 1930 may be placed to reinforce the strength of the base 1110. The reinforcing member 1930 may prevent damage to the base 1110. The reinforcing member 1930 may prevent damage to the column portion 1111 of the base 1110. The reinforcing member 1930 may prevent damage to the outer wall portion 1112 of the base 1110. The reinforcing member 1930 may be elastic. The reinforcing member 1930 may be made of metal. The reinforcing member 1930 may include a shape that is bent at least 55 times. The reinforcing member 1930 may be formed in a "⊂" shape when viewed from above. The reinforcing member 1930 may open inward.

[0481] The reinforcing member 1930 may include an inner portion 1931. The inner portion 1931 can be positioned on the opposite side of the inner groove 1111-1 of the column portion 1111 of the fixing portion 1100. The reinforcing member 1930 may include an outer portion 1932. The outer portion 1932 can be positioned on the opposite side of the outer groove 1112-1 of the outer wall portion 1112 of the fixing portion 1100. The reinforcing member 1930 may include a connecting portion 1933. The connecting portion 1933 can connect the inner portion 1931 and the outer portion 1932.

[0482] The lens drive unit 1010 may include a cover 1940. The cover 1940 may be positioned on the AF guide ball 1810. The cover 1940 may overlap the AF guide ball 1810 in the optical axis direction. The cover 1940 may overlap the inner ball 1811 in the optical axis direction. The cover 1940 may overlap the outer ball 1812 in the optical axis direction. The cover 1940 may be positioned on the inner groove 1224-1 and outer groove 1224-2 of the AF carrier 1210 to prevent the AF guide ball 1810 from detaching upwards.

[0483] In a second embodiment of the present invention, one end of the wire 1850 is coupled to the AF moving part 1200 which is fixed when the OIS is driven, thereby reducing the characteristic of the wire 1850 to vibrate at a point mass.

[0484] In a second embodiment of the present invention, the base 1110, preloading member 1230, inner substrate 1720, holder member 1220, and OIS carrier 1310 can be arranged sequentially from the bottom. In a second embodiment of the present invention, the base 1110, preloading member 1230, inner substrate 1720, holder member 1220, and OIS carrier 1310 can be stacked sequentially from the bottom. In a second embodiment of the present invention, a stable bonding surface with the lens module 1020 can be ensured throughout the stacking direction. In a second embodiment of the present invention, the leaves 121 of the lens module 1020 can be placed in the grooves 1313 of the OIS carrier 1310.

[0485] In a second embodiment of the present invention, the OIS-x drive unit 1500 and the OIS-y drive unit 1600 can each be provided with two coils. By forming the distribution of the driving force at two points from the outside, the drive linearity can be improved. The magnets of the OIS-x drive unit 1500 and the OIS-y drive unit 1600 can each be formed with four poles. Alternatively, they can be formed with two two-pole magnets each, for a total of four magnets.

[0486] According to a second embodiment of the present invention, the attractive and repulsive forces between the AF magnet 1410 and the OIS-x magnet 1510 or between the AF magnet 1410 and the OIS-y magnet 1610 can be reduced. This reduces the drive noise.

[0487] The autofocus (AF) drive of a lens drive device according to a second embodiment of the present invention will be described below with reference to the drawings.

[0488] Figures 98 to 100 are diagrams illustrating the autofocus drive of a lens drive device according to a second embodiment of the present invention. Figure 98 is a cross-sectional view showing the state of the moving part in the initial state when no current is applied to the AF coil. Figure 99 is a cross-sectional view showing the state when a positive current is applied to the AF coil and the moving part moves upward in the optical axis direction. Figure 100 is a cross-sectional view showing the state when a reverse current is applied to the AF coil and the moving part moves downward in the optical axis direction.

[0489] As shown in Figure 98, the movable part can be positioned in an initial position where no current is applied to the AF coil 1420, and is separated from the top plate 1121 of the cover 1120 and the base 1110. In this case, the movable part can be the AF movable part 1200. Alternatively, the movable part can include the AF movable part 1200 and the OIS movable part 1300.

[0490] When a positive current is applied to the AF coil 1420, the electromagnetic interaction between the AF coil 1420 and the AF magnet 1410 allows the AF coil 1420 to move upward in the optical axis direction (see Figure 99A). At this time, the AF carrier 1210 can move upward in the optical axis direction along with the AF coil 1420. Furthermore, the OIS carrier 1310 and the lens can move upward in the optical axis direction along with the AF carrier 1210. This changes the distance between the lens and the image sensor, and the focus of the image formed on the image sensor via the lens can be adjusted.

[0491] When a reverse current is applied to the AF coil 1420, the electromagnetic interaction between the AF coil 1420 and the AF magnet 1410 allows the AF coil 1420 to move downward in the optical axis direction (see Figure 100B). At this time, the AF carrier 1210 can move downward in the optical axis direction along with the AF coil 1420. Furthermore, the OIS carrier 1310 and the lens can move downward in the optical axis direction along with the AF carrier 1210. This changes the distance between the lens and the image sensor, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0492] Meanwhile, during the movement of the AF coil 1420, the AF sensor 1430 moves together with the AF coil 1420, sensing the strength of the magnetic field of the AF magnet 1410, and can detect the amount of movement and position of the lens in the optical axis direction. The amount of movement and position of the lens in the optical axis direction detected by the AF sensor 1430 can be used for autofocus feedback control.

[0493] Hereinafter, the optical image stabilization (OIS) drive of the lens drive device according to the second embodiment of the present invention will be described with reference to the drawings.

[0494] Figures 101 to 103 are diagrams illustrating the image stabilization drive of a lens drive device according to a second embodiment of the present invention. Figure 101 is a cross-sectional view showing the state of the OIS moving part in the initial state when no current is applied to the OIS-x coil and OIS-y coil. Figure 102 is a cross-sectional view showing the state when current is applied to the OIS-x coil and the OIS moving part moves in the x-axis direction perpendicular to the optical axis. Figure 103 is a cross-sectional view showing the state when current is applied to the OIS-y coil and the OIS moving part moves in the y-axis direction perpendicular to the optical axis and the x-axis.

[0495] As shown in Figure 101, the movable part can be positioned in its initial position when no current is applied to the OIS-x coil 1520 and the OIS-y coil 1620. In this case, the movable part can be the OIS movable part 1300.

[0496] When current is applied to the OIS-x coil 1520, the electromagnetic interaction between the OIS-x coil 1520 and the OIS-x magnet 1510 allows the OIS-x magnet 1510 to move in the x-axis direction perpendicular to the optical axis (see Figure 102A). At this time, the OIS carrier 1310 can move in the x-axis direction together with the OIS-x magnet 1510. Furthermore, the lens can move in the x-axis direction together with the OIS carrier 1310. More specifically, when a positive current is applied to the OIS-x coil 1520, the OIS-x magnet 1510, OIS carrier 1310, and lens can move in one direction along the x-axis. Conversely, when a reverse current is applied to the OIS-x coil 1520, the OIS-x magnet 1510, OIS carrier 1310, and lens can move in the other direction along the x-axis.

[0497] When current is applied to the OIS-y coil 1620, the electromagnetic interaction between the OIS-y coil 1620 and the OIS-y magnet 1610 allows the OIS-y magnet 1610 to move in the y-axis direction perpendicular to the optical axis (see Figure 103B). At this time, the OIS carrier 1310 can move in the y-axis direction together with the OIS-y magnet 1610. Furthermore, the lens can move in the y-axis direction together with the OIS carrier 1310. More specifically, when a positive current is applied to the OIS-y coil 1620, the OIS-y magnet 1610, OIS carrier 1310, and lens can move in one direction along the y-axis. Conversely, when a reverse current is applied to the OIS-y coil 1620, the OIS-y magnet 1610, OIS carrier 1310, and lens can move in the other direction along the y-axis.

[0498] On the other hand, the OIS-x sensor 1530 can sense the strength of the magnetic field of the OIS-x magnet 1510 and detect the amount of movement and position of the OIS-x magnet 1510. The amount of movement and position detected by the OIS-x sensor 1530 can be used for x-axis image stabilization feedback control. The OIS-y sensor 1630 can sense the strength of the magnetic field of the OIS-y magnet 1610 and detect the amount of movement and position of the OIS-y magnet 1610. The amount of movement and position detected by the OIS-y sensor 1630 can be used for y-axis image stabilization feedback control.

[0499] A camera device according to a second embodiment of the present invention will be described below with reference to the drawings.

[0500] Figure 104 is an exploded perspective view of a camera device according to a second embodiment of the present invention.

[0501] The camera device 1010A may include a camera module.

[0502] The camera device 1010A may include a lens module 1020. The lens module 1020 may include at least one lens. The lens may be positioned in a location corresponding to the image sensor 1060. The lens module 1020 may include a lens and a barrel. The lens module 1020 may be coupled to the OIS carrier 1310 of the lens drive unit 1010. The lens module 1020 may be coupled to the OIS carrier 1310 by screw coupling and / or adhesive. The lens module 1020 may move together with the OIS carrier 1310.

[0503] The camera device 1010A may include a filter 1030. The filter 1030 can block light of a specific frequency band from entering the image sensor 1060 from the light passing through the lens module 1020. The filter 1030 can be positioned parallel to the xy plane. The filter 1030 can be positioned between the lens module 1020 and the image sensor 1060. The filter 1030 can be positioned on the sensor base 1040. In a modified example, the filter 1030 can be positioned on the base 1110. The filter 1030 may include an infrared filter. The infrared filter can block light in the infrared region from entering the image sensor 1060.

[0504] The camera device 1010A may include a sensor base 1040. The sensor base 1040 may be positioned between the lens drive unit 1010 and the printed circuit board 1050. The sensor base 1040 may include a projection 1041 on which a filter 1030 is positioned. An opening may be formed in the portion of the sensor base 1040 on which the filter 1030 is positioned, allowing light passing through the filter 1030 to enter the image sensor 1060. An adhesive member may be used to bond or adhere the base 1110 of the lens drive unit 1010 to the sensor base 1040. The adhesive member may further serve to prevent foreign matter from entering the interior of the lens drive unit 1010. The adhesive member may include one or more of epoxy, thermosetting adhesives, and UV-curing adhesives.

[0505] The camera device 1010A may include a printed circuit board (PCB) 1050. The printed circuit board 1050 may be a board or a circuit board. A lens drive device 1010 may be placed on the printed circuit board 1050. A sensor base 1040 may be placed between the printed circuit board 1050 and the lens drive device 1010. The printed circuit board 1050 may be electrically connected to the lens drive device 1010. An image sensor 1060 may be placed on the printed circuit board 1050. The printed circuit board 1050 may also be equipped with various circuits, elements, control units, etc., for converting the image formed on the image sensor 1060 into an electrical signal and transmitting it to an external device.

[0506] The camera device 1010A may include an image sensor 1060. The image sensor 1060 may be configured such that light passing through a lens and filter 1030 is incident on it and an image is formed. 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 by surface mounting technology (SMT). As another example, the image sensor 1060 may be coupled to the printed circuit board 1050 by flip-chip technology. The image sensor 1060 may be positioned so that its optical axis coincides with that of the lens. That is, the optical axis of the image sensor 1060 and the optical axis of the lens can be aligned. The image sensor 1060 may convert light illuminating its effective image area into an electrical signal. The image sensor 1060 can be any one of the following: CCD (charge-coupled device), MOS (metal oxide semiconductor), CPD, and CID.

[0507] The camera device 1010A may include a motion sensor 1070. The motion sensor 1070 may be mounted on a 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 due to the movement of the camera device 1010A. The motion sensor 1070 may include a 2-axis or 3-axis gyro sensor, or an angular velocity sensor.

[0508] The camera device 1010A may include a control unit 1080. The control unit 1080 may be located on a printed circuit board 1050. The control unit 1080 may be electrically connected to the coil 1330 of the lens drive device 1010. The control unit 1080 can individually control the direction, intensity, and amplitude of the current supplied to the coil 1330. The control unit 1080 can control the lens drive device 1010 to perform autofocus and / or image stabilization functions. Furthermore, the control unit 1080 can perform autofocus feedback control and / or image stabilization feedback control to the lens drive device 1010.

[0509] The camera device 1010A may include a connector 1090. The connector 1090 can be electrically connected to the printed circuit board 1050. The connector 1090 may include a port for electrical connection to an external device.

[0510] Hereinafter, an optical device according to a second embodiment of the present invention will be described with reference to the drawings.

[0511] Figure 105 is a perspective view of an optical device according to a second embodiment of the present invention. Figure 106 is a perspective view of an optical device according to a modified example.

[0512] Optical device 1001 may include one or more of the following: mobile phones, mobile terminals, mobile devices, smartphones, smartpads, portable smart devices, digital cameras, laptop computers, digital broadcasting terminals, PDAs (Personal Digital Assistants), PMPs (Portable Multimedia Players), and navigation systems. Optical device 1001 may also include any device for capturing images or photographs.

[0513] The optical device 1001 may include a main body 1020. The optical device 1001 may include a camera device 1010A. The camera device 1010A can be mounted on the main body 1020. The camera device 1010A can photograph a subject. The optical device 1001 may include a display. The display can be mounted on the main body 1020. The display can output one or more of the video and images captured by the camera device 1010A. The display can be mounted on the first surface of the main body 1020. The camera device 1010A can be mounted on either the first surface of the main body 1020 or the second surface opposite the first surface. As shown in Figure 105, the camera device 1010A can have triple cameras arranged vertically. As shown in Figure 106, the camera device 1010A-1 can have triple cameras arranged horizontally.

[0514] While embodiments of the present invention have been described above with reference to the attached drawings, those with ordinary skill in the art to which the present invention pertains should understand that the present invention can be implemented in other specific forms without altering the essential features of its technical concept. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting.

Claims

1. Base; A housing positioned on the aforementioned base; A bobbin placed within the aforementioned housing; A first ball positioned between the housing and the base; A second ball positioned between the housing and the lower side of the bobbin; and Includes the aforementioned bobbin and a coil spring that connects to the housing, The coil spring pressurizes the second ball in the lens drive device.

2. The lens drive device according to claim 1, wherein the base includes a first guide that guides the first ball to move.

3. The lens drive device according to claim 2, wherein the housing includes a second guide on the side for guiding the first ball to move.

4. The lens driving device according to claim 3, wherein the first guide and the second guide include grooves.

5. The lens driving device according to claim 1, wherein the housing includes a first housing including a lower plate having a metal member, and a second housing coupled to the first housing and having a projection that guides the second ball.

6. Includes a first substrate disposed between the first housing and the second housing, The first substrate is coupled to the lower surface of the first housing, The lens driving device according to claim 5, wherein the second housing is coupled to the first substrate.

7. The lens drive device according to claim 5, wherein the second housing contacts the second ball and pressurizes a portion of the coil spring.

8. Includes a cover that connects to the base, The lens driving device according to claim 1, wherein the first ball is disposed between the cover and the column of the base.

9. The lens driving device according to claim 1, wherein the coil spring is circular in shape when viewed from above.

10. The lens driving device according to claim 1, wherein the coil spring is formed by bending a single chain so that it overlaps multiple times in the direction of the optical axis.

Images