Lens driving device, camera device, and optical device

Abstract

A first embodiment of the present invention relates to a lens driving device comprising: a fixed portion; the first movable part is arranged in the fixed part; the second movable part is arranged in the first movable part; a first driving portion that moves the first movable portion in a direction perpendicular to the optical axis; and a second driving portion that moves the second movable portion in the optical axis direction, in which the second driving portion includes: a first magnet provided in the second movable portion; and a first coil disposed opposite the first magnet and provided in the fixed portion.

Description

Technical Field

[0001] Embodiments relate to a lens driving device, a camera device, and an optical device. Background Art

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

[0003] The camera device is equipped with an auto focus function that automatically adjusts the focus according to the distance of the object. In addition, the camera device is equipped with a hand shake correction function that prevents the focus from being blurred due to the user's hand shake.

[0004] In the past, an image stabilization module that performs an image stabilization function is housed within an auto focus module that performs an auto focus function.

[0005] In this case, the size and weight of a magnet for the auto focus operation increase because the image stabilization module must move together with the lens to operate the auto focus.

[0006] In particular, the problem is exacerbated by the increase in lens diameter and weight due to the recent increase in image sensor resolution.

[0007] Additionally, in order to house the magnets and coils required for the autofocus function and image stabilization function, the optical axis needs to be larger than the thickness of the smartphone, which causes the camera device mounted on the smartphone to protrude from the rest of the smartphone.

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

[0009] Technical issues

[0010] The first embodiment of the present invention provides a lens driving device, wherein the auto focus module is arranged in the hand shake correction module. In other words, the hand shake correction module provides a lens driving device that does not move when the auto focus is enabled.

[0011] A second embodiment of the present invention provides a camera device having an autofocus function and an image stabilization function while having a minimized size in the optical axis direction.

[0012] Technical Solution

[0013] According to the first embodiment of the present invention, the lens driving device may include: a fixed part; a first movable part, which is arranged in the fixed part; a second movable part, which is arranged in the first movable part; a first driving part, which causes the first movable part to move in a direction perpendicular to the optical axis; and a second driving part, which causes the second movable part to move in the direction of the optical axis, wherein the second driving part includes: a first magnet, which is arranged in the second movable part; and a first coil, which is arranged opposite to the first magnet and is arranged in the fixed part.

[0014] According to the first embodiment of the present invention, the lens driving device may include: a fixed part; a first movable part, the first movable part including a first carrier capable of moving along an X-axis perpendicular to the optical axis direction and a second carrier capable of moving along a Y-axis perpendicular to the optical axis direction; a second movable part, the second movable part is arranged in the first movable part and can move along the optical axis direction; a first magnet, the first magnet is arranged in the second movable part; a second magnet, the second magnet is arranged in the first carrier; a third magnet, the third magnet is arranged on the second carrier; a first coil, the first coil is arranged to face the first magnet; a second coil, the second coil is arranged to face the second magnet in the optical axis direction; and a third coil, the third coil is arranged to face the third magnet in the optical axis direction, wherein the first coil can be arranged on the first side of the fixed part.

[0015] According to the first embodiment of the present invention, the lens driving device may include: a coil part; a shell, which is arranged on the coil part; a first carrier, which can move along the x-axis direction perpendicular to the optical axis; a second carrier, which can move along the y-axis direction perpendicular to the optical axis; a coil frame, which is arranged in the second carrier; a first magnet, which is arranged on the coil frame; a second magnet, which is arranged on the first carrier; a third magnet, which is arranged on the second carrier; a first spherical member, which is arranged between the shell and the first carrier; and a second spherical member, which is arranged between the first carrier and the second carrier, wherein the coil part may include a second coil arranged to face the second magnet in the optical axis direction and a third coil arranged to face the third magnet in the optical axis direction.

[0016] Preferably, but not necessarily, the third magnet may be disposed between the second carrier and the third coil, and may be disposed lower than the second spherical member.

[0017] Preferably, but not necessarily, the housing may not move.

[0018] Preferably, but not necessarily, the lens driving device may further include a first coil disposed in the housing and disposed opposite to the first magnet.

[0019] Preferably, but not necessarily, the lens driving device may include a third spherical member disposed between the coil frame and the second carrier.

[0020] Preferably, but not necessarily, the second carrier may include a protrusion protruding in the direction of the third coil, and the third magnet may be provided on the protrusion.

[0021] Preferably, but not necessarily, the first carrier may include a groove into which the protrusion is inserted.

[0022] Preferably, but not necessarily, the second magnet and the third magnet may overlap on a virtual plane perpendicular to the optical axis direction.

[0023] Preferably, but not necessarily, the virtual plane and the first magnet may not overlap.

[0024] Preferably, but not necessarily, the lens driving device may include a first substrate disposed in the housing, and the first coil may be disposed on the first substrate.

[0025] Preferably, but not necessarily, the first coil may be disposed on an inner surface of the first substrate, a yoke may be disposed on an outer surface of the first substrate, and an attractive force may act between the first magnet and the yoke.

[0026] Preferably, but not necessarily, when the second carrier moves via the third magnet and the third coil, the coil frame may also move together with the second carrier, thereby changing the distance between the first magnet and the first coil.

[0027] Preferably but not necessarily, when the coil frame moves through the first magnet and the first coil, the distance between the first magnet and the first coil in the y-axis direction can be kept constant, and when the first carrier, the second carrier and the coil frame move together through the second magnet and the second coil, the distance between the first magnet and the first coil in the y-axis direction can be kept constant.

[0028] Preferably, but not necessarily, the lens driving device may include a base, the coil part may include a second substrate disposed on the base, and the second coil and the third coil may be disposed on the second substrate.

[0029] Preferably but not necessarily, the second coil and the third coil can be arranged on the upper surface of the second substrate, and the yoke can be located at a position corresponding to the second coil and the third coil on the lower surface of the second substrate, and the base can include a groove in which the yoke is arranged, which is recessed on the upper surface of the base.

[0030] Preferably, but not necessarily, the first magnet may include an outer surface facing the first coil, an inner surface opposite to the outer surface, an upper surface and a lower surface, two side surfaces, and a chamfered surface connecting the inner surface and the two side surfaces.

[0031] A camera device according to a first embodiment of the present invention may include: a printed circuit board; an image sensor disposed on the printed circuit board; a lens driving device disposed on the printed circuit board; and a lens coupled to the lens driving device.

[0032] An optical device according to a first embodiment of the present invention may include: a main body; a camera device provided in the main body; and a display provided in the main body and outputting one or more of an image and a video captured by the camera device.

[0033] According to the second embodiment of the present invention, the lens driving device may include: a fixed part; a second movable part, which is arranged on the fixed part; a first movable part, which is arranged in the second movable part; a first coil and a first magnet, which make the first movable part move along the optical axis direction; a second coil and a second magnet, which make the second movable part move along the first direction perpendicular to the optical axis direction; and a first yoke, which is arranged in a position corresponding to the first magnet, wherein the first magnet can be arranged in the first movable part, and the first yoke can be arranged in the second movable part.

[0034] The lens driving device may include a first spherical member disposed between the first movable portion and the second movable portion, and the first spherical member may be pressed between the first movable portion and the second movable portion by an attractive force between the first magnet and the first yoke.

[0035] Preferably, but not necessarily, the first magnet may overlap with the first yoke in the first direction.

[0036] Preferably, but not necessarily, the first yoke may include a first unit yoke and a second unit yoke spaced apart from each other, and the first magnet may be disposed between the first unit yoke and the second unit yoke in the first direction.

[0037] Preferably, but not necessarily, the first magnet may include a first surface facing the first coil and a second surface opposite to the first surface, and in the first direction, a width of the first surface of the first magnet may be smaller than a width of the second surface of the first magnet.

[0038] The lens driving device may include: a third movable part, which is arranged between the fixed part and the second movable part; and a third coil and a third magnet, which make the third movable part move in a second direction perpendicular to the optical axis direction and the first direction.

[0039] Preferably, but not necessarily, the first magnet may not overlap with the first yoke in the second direction.

[0040] Preferably but not necessarily, the first movable part may include a first surface, the second movable part may include a first surface facing the same direction as the first surface, the first magnet may be arranged on the first surface of the first movable part, and the first yoke may be arranged on the first surface of the second movable part.

[0041] Preferably, but not necessarily, the second movable portion may include a groove concavely formed on the first surface of the second movable portion, and the first yoke may be disposed in the groove.

[0042] Preferably, but not necessarily, the second magnet may overlap with the second coil in the optical axis direction.

[0043] Preferably, but not necessarily, the third magnet may overlap with the third coil in the optical axis direction.

[0044] The lens driving device may include: a second spherical member, which is arranged between the second movable part and the third movable part; and a second magnetic yoke, which attracts the second magnet, wherein the second magnet can be arranged on the second movable part, and the second magnetic yoke can be arranged on the fixed part.

[0045] The lens driving device may include: a third spherical member, which is arranged between the fixed part and the third movable part; and a third magnetic yoke, and a third magnet and the third magnetic yoke have an attractive force, wherein the third magnet can be arranged in the third movable part, and the third magnetic yoke can be arranged in the second movable part.

[0046] The lens driving device may include a fourth yoke having an attraction effect with the third magnet, and the fourth yoke may be disposed on the fixing portion.

[0047] The lens driving device may include: a fourth magnet disposed in the second movable portion; and a fifth yoke which attracts the fourth magnet, and the fifth yoke may be disposed in the fixed portion.

[0048] A camera module according to a second embodiment of the present invention may include: a printed circuit board; an image sensor disposed on the printed circuit board; a lens driving device disposed on the printed circuit board; and a lens coupled to the lens driving device.

[0049] An optical device according to a second embodiment of the present invention may include: a main body; a camera device provided in the main body; and a display provided in the main body and outputting one or more of an image and a video captured by the camera device.

[0050] Beneficial Effects

[0051] In a first embodiment of the present invention, the auto focus module is disposed within the image stabilization (hand shake correction) module so that the image stabilization module does not move when the auto focus is enabled.

[0052] This reduces the electromagnetic force required for the autofocus operation, which in turn reduces the size and weight of the magnet used for the autofocus operation. Therefore, a lens with a larger diameter and weight can be installed.

[0053] More specifically, since the AF stroke length is longer than the OIS stroke length, reducing the weight of the AF moving part that moves the relatively long AF stroke section may result in a reduction in power consumption.

[0054] Furthermore, in the first embodiment of the present invention, the coil for compensating for hand shaking can be arranged at the bottom, thereby reducing the size in the direction perpendicular to the optical axis of the lens driving device. The coil for image stabilization can be arranged below the magnet.

[0055] In the second embodiment of the present invention, an auto focus function and a hand shake compensation function can be performed in a camera device having a minimized size in the optical axis direction.

[0056] The camera device according to the second embodiment of the present invention may not protrude from the smartphone. Alternatively, the camera device according to the second embodiment of the present invention may protrude from the smartphone to a minimum extent.

[0057] According to the second embodiment of the present invention, a camera device that does not protrude or minimally protrudes from a smartphone can perform both an auto focus function and an image stabilization function.

[0058] Furthermore, the second embodiment of the present invention can provide a camera device having minimized sizes in both the horizontal direction and the vertical direction perpendicular to the optical axis.

[0059] In addition, since both the N-pole region and the S-pole region of the magnet are used, the Hall sensor has an advantage of fully utilizing the linear section of the Hall output. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 is a perspective view of a lens driving device according to a first embodiment of the present invention.

[0061] Figure 2 is from Figure 1 Cross-sectional view of AA observation.

[0062] Figure 3 is from Figure 1 Cross-sectional view of BB observation.

[0063] Figure 4 is from Figure 1 Cross-sectional view of CC observation.

[0064] Figure 5 is from Figure 1 Cross-sectional view of DD observation.

[0065] Figure 6 is a cross-sectional view of the lens driving device according to the first embodiment of the present invention, taken in a direction perpendicular to the optical axis.

[0066] Figures 7 to 9 The following are exploded perspective views of the lens driving device according to the first embodiment of the present invention, viewed from different directions.

[0067] Fig.10 is a perspective view of the lens driving device according to the first embodiment of the present invention in which the cover is omitted.

[0068] Fig.11 1 is an exploded perspective view of a lens driving device according to a first embodiment of the present invention, showing a combined structure of a base, an OIS plate and related configurations.

[0069] Fig.12 is a perspective view of a part of a fixing portion and related configurations of a lens driving device according to a first embodiment of the present invention.

[0070] Fig.13 is shown with Fig.12 A bottom perspective view of the OIS-x carrier and related configuration connected to the fixed part.

[0071] Fig.14 It shows that Fig.12 A stereoscopic view of an OIS-x carrier arranged in a lens driving device in a state.

[0072] Fig.15a is shown with Fig.14 A bottom view of the OIS-y carrier connected to the OIS-x carrier and related configuration.

[0073] Fig.15b 1 is an exploded perspective view of an OIS-x carrier and an OIS-y carrier of the lens driving device according to the first embodiment of the present invention.

[0074] Fig.15c 1 is an exploded perspective view of an OIS-x carrier and an OIS-y carrier of the lens driving device according to the first embodiment of the present invention, as seen from below.

[0075] Fig.16 It shows that Fig.14 A stereoscopic view of an OIS-y carrier arranged in a lens driving device in a state.

[0076] Fig.17 1 is a perspective view of an OIS-x carrier and an OIS-y carrier and related configurations of a lens driving device according to a first embodiment of the present invention.

[0077] Fig.18 is a perspective view showing an AF carrier and related configurations of a lens driving device according to a first embodiment of the present invention.

[0078] Fig.19 is a perspective view of the lens driving device according to the first embodiment of the present invention with the cover and the housing removed.

[0079] Fig. 20 The AF substrate is removed. Fig.19 Front view of the lens driving device in the state.

[0080] Fig.21 Observed from different directions Fig.19 A side view of the lens driving device in the state.

[0081] Fig. 22 It is from Fig. 20 Observed in the opposite direction Fig.21 A side view of the lens driving device in the state.

[0082] Fig.23 is a perspective view of the lens driving device of the first embodiment of the present invention with the cover and the movable portion removed.

[0083] Fig.24 1 is a perspective view showing a driving portion and related configurations of a lens driving device according to a first embodiment of the present invention.

[0084] Fig.25a Observed from the other direction Fig.24 A stereoscopic view of the lens driving device in the state.

[0085] Fig.25bis a perspective view showing the shape and related configuration of an AF magnet according to a modified example.

[0086] Figure 26 to Figure 28 FIG. 1 is a diagram for explaining the autofocus operation of the lens driving device according to the first embodiment of the present invention. Fig.26 is a cross-sectional view showing the state of the movable portion in an initial state when no current is applied to the AF coil. Fig. 27 is a cross-sectional view showing a movable portion that moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.28 A cross-sectional view showing a movable portion that moves to the lower side of the optical axis when a reverse current is applied to the AF coil.

[0087] Figure 29 to Figure 32 FIG. 1 is a diagram for explaining the image stabilization drive of the lens driving device according to the first embodiment of the present invention. Fig.29 and Fig.31 is a cross-sectional view showing the state of the movable portion in an initial state when no current is applied to the OIS-x coil and the OIS-y coil. Fig.30 is a cross-sectional view showing that the OIS-x coil is energized and the OIS-x carrier and the OIS-y carrier move in the x-axis direction perpendicular to the optical axis. Fig.32 is a cross-sectional view showing the movement of the OIS-y carrier in the y-axis direction perpendicular to both the optical axis and the x-axis when current is applied to the OIS-y coil.

[0088] Fig.33 is an exploded perspective view of a camera device according to a first embodiment of the present invention.

[0089] Fig.34 is a perspective view of an optical device according to a first embodiment of the present invention.

[0090] Fig.35 is a perspective view of an optical device according to a modified example.

[0091] Fig.36 is a perspective view of a lens driving device according to a second embodiment of the present invention.

[0092] Fig.37 is from Fig.36 Cross-sectional view of aa observation.

[0093] Fig.38 is from Fig.36 Cross-sectional view of bb observation.

[0094] Fig.39 is from Fig.36 Cross-sectional view of cc observation.

[0095] Fig.40 is from Fig.36 Cross-sectional view of dd observation.

[0096] Fig.41 is from Fig.36 Cross-sectional diagram of ee observation.

[0097] Fig.42 is a cross-sectional perspective view of a lens driving device according to a second embodiment of the present invention, taken in a direction perpendicular to the optical axis.

[0098] Fig.43a FIG. 1 is an exploded perspective view of a lens driving device according to a second embodiment of the present invention.

[0099] Figure 43b is an exploded perspective view of a lens driving device according to a first modified example.

[0100] Fig.43c is an exploded perspective view of a lens driving device according to a second modification example.

[0101] Figure 43d is an exploded perspective view of a lens driving device according to a third modified example.

[0102] Fig.44 It is from Fig.43a An exploded perspective view of a lens driving device according to a second embodiment of the present invention viewed from different directions.

[0103] Fig.45 is a perspective view of a lens driving unit according to a second embodiment of the present invention with a cover removed.

[0104] Fig.46 It is from Fig.45 A perspective view of a lens driving device according to a second embodiment of the present invention, with a cover removed, viewed from different directions.

[0105] Fig.47 : is a perspective view showing a fixing portion and related configuration of a lens driving device according to a second embodiment of the present invention.

[0106] Fig.48 : is a perspective view showing an OIS-x movable part and related configuration of a lens driving device according to a second embodiment of the present invention.

[0107] Fig.49 1 is a bottom perspective view of an OIS-x movable portion and related configuration of a lens driving device according to a second embodiment of the present invention.

[0108] Fig.501 is a perspective view showing an OIS-y movable portion and related configurations of a lens driving device according to a second embodiment of the present invention.

[0109] Fig.51 1 is a bottom perspective view showing an OIS-y movable portion and related configurations of a lens driving device according to a second embodiment of the present invention.

[0110] Fig.52 : is a perspective view showing an AF movable portion and related configuration of a lens driving device according to a second embodiment of the present invention.

[0111] Fig.53 is a bottom view of the lens driving device according to the second embodiment of the present invention with the base and the cover removed.

[0112] Fig.54 1 is a perspective view showing a driving portion and a guide member and related configurations of a lens driving device according to a second embodiment of the present invention together with a base.

[0113] Fig.55 1 is a partial perspective plan view showing the arrangement of an AF magnet and an AF attraction yoke of a lens driving device according to a second embodiment of the present invention.

[0114] Fig.56 1 is a front view showing the arrangement of an AF magnet and an AF attraction yoke of a lens driving device according to a second embodiment of the present invention.

[0115] Figure 57 to Figure 59 FIG. 1 is a diagram for explaining an autofocus operation of a lens driving device according to a second embodiment of the present invention. Fig.57 is a cross-sectional view showing the AF movable portion in an initial state when no current is applied to the AF coil. Fig.58 is a cross-sectional view showing that the AF movable portion moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.59 is a cross-sectional view showing that the AF movable portion moves to the lower side of the optical axis when a reverse current is applied to the AF coil.

[0116] Figure 60 to Figure 62 FIG. 1 is a diagram for explaining image stabilization driving of the lens driving device according to the second embodiment of the present invention. Fig.60 is a cross-sectional view showing the state of the movable portion in an initial state when no current is applied to the OIS-x coil and the OIS-y coil. Fig.61 : is a cross-sectional view showing that the OIS-x coil is energized and the OIS-x movable portion, the OIS-y movable portion, and the AF movable portion move in the x-axis direction perpendicular to the optical axis. Fig.62is a cross-sectional view showing that the OIS-y movable portion and the AF movable portion move in the y-axis direction perpendicular to the optical axis when current is applied to the OIS-y coil.

[0117] Fig.63 is an exploded perspective view of a camera device according to a second embodiment of the present invention.

[0118] Fig.64 is a perspective view of an optical device according to a second embodiment of the present invention.

[0119] Fig.65 is a perspective view of an optical device according to a modified example. DETAILED DESCRIPTION

[0120] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0121] However, the present invention is not limited to the given exemplary embodiments described, but may be implemented in various different forms, and within the scope of the present invention, one or more of the components in the exemplary embodiments may be optionally combined or replaced between the embodiments.

[0122] In addition, unless explicitly defined and described specifically, the terms (including technical terms and scientific terms) used in the embodiments of the present invention should be interpreted in the sense that a person of ordinary skill in the art to which the present invention belongs would understand the terms, and commonly used terms, such as terms defined in dictionaries, should be interpreted according to the contextual meaning of these terms in the relevant technology.

[0123] Furthermore, the terms used in the embodiments of the present invention are intended to describe the embodiments but are not intended to limit the present invention.

[0124] In this specification, unless the context otherwise requires, the singular may include the plural, and reference to "at least one (or more) of A and (or) B and C" may include one or more of any combinations of A, B and C that can be combined.

[0125] In addition, the terms first, second, A, B, (a), (b), etc. may be used to describe components of embodiments of the present invention. Such terms are intended only to distinguish one component from another component, and are not intended to limit the nature or order or sequence of such components by such terms.

[0126] In addition, when a component is described as being “connected,” “coupled” or “attached” to another component, it may include the case where the component is directly “connected,” “coupled” or “attached” to the other component and the case where the component is “connected,” “coupled” or “attached” to another component located between the component and the other component.

[0127] Furthermore, when described as being formed or disposed “above” or “below” each component, “above” or “below” includes not only a case where two components are in direct contact with each other but also a case where one or more other components are formed or disposed between the two components. Furthermore, when expressed as “above” or “below”, it may include the meaning of upward as well as downward relative to a single component.

[0128] As used herein below, the term “optical axis (see Fig.26 The “OA) direction” is defined as the optical axis direction of the lens and / or image sensor connected to the lens driving device.

[0129] The "vertical direction" used below in this article may be parallel to or the same as the optical axis direction. The vertical direction may correspond to the "z-axis direction". The vertical direction may correspond to the "z-axis direction". The "horizontal direction" used below in this article may be a direction perpendicular to the vertical direction. Therefore, the horizontal direction may include the "x-axis direction" and the "y-axis direction".

[0130] The "auto focus (AF) function" used hereinafter is defined as a function of automatically adjusting the focus of an object by moving the lens in the optical axis direction according to the distance of the object so that a clear image of the object can be obtained on the image sensor and adjusting the distance from the image sensor. In addition, "closed loop auto focus (CLAF) control" is defined as real-time feedback control of the lens position by detecting the distance between the image sensor and the lens to improve the focus adjustment accuracy.

[0131] The "optical image stabilization (OIS) function" used hereinafter is defined as a function of moving or tilting the lens in a direction perpendicular to the optical axis to offset hand shaking, thereby preventing the image or video from shaking due to the user's hand shaking. In addition, closed-loop autofocus (CLAF) control is defined as detecting the position of the lens relative to the image sensor and performing real-time feedback control on the position of the lens to improve the accuracy of optical image stabilization.

[0132] Hereinafter, one of the “OIS carrier 200 ” and the “AF carrier 300 ” may be referred to as a “first carrier” and the other may be referred to as a “second carrier”.

[0133] Hereinafter, one of the “OIS-x carrier 210 ,” the “OIS-y carrier 220 ,” and the “AF carrier 300 ” may be referred to as a “first carrier,” another may be referred to as a “second carrier,” and another may be referred to as a “third carrier.”

[0134] Hereinafter, one of the “OIS movable portion” and the “AF movable portion” may be referred to as a “first movable portion” and the other may be referred to as a “second movable portion”.

[0135] Hereinafter, one of the “OIS substrate 130 ” and the “AF substrate 140 ” may be referred to as a “first substrate” and the other may be referred to as a “second substrate”.

[0136] Hereinafter, one of the “OIS driving section” and the “AF driving section” may be referred to as a “first driving section” and the other may be referred to as a “second driving section”.

[0137] Hereinafter, one of the “OIS-x coil 410 ,” the “OIS-y coil 510 ,” and the “AF coil 610 ” may be referred to as a “first coil,” a “second coil,” and a “third coil,” respectively.

[0138] Hereinafter, any one of the “OIS-x magnet 420 ,” the “OIS-y magnet 520 ,” and the “AF magnet 620 ” may be referred to as a “first magnet,” another may be referred to as a “second magnet,” and another may be referred to as a “third magnet.”

[0139] Hereinafter, one of the “OIS-x sensor 430 ,” the “OIS-y sensor 530 ,” and the “AF sensor 630 ” may be referred to as a “first sensor,” another may be referred to as a “second sensor,” and another may be referred to as a “third sensor.”

[0140] Hereinafter, one of the “OIS-x yoke 440 ,” the “OIS-y yoke 540 ,” and the “AF yoke 640 ” may be referred to as a “first yoke,” another may be referred to as a “second yoke,” and another may be referred to as a “third yoke.”

[0141] Hereinafter, one of the “OIS-x guide sphere 710 ,” the “OIS-y guide sphere 720 ,” and the “AF guide sphere 730 ” may be referred to as the “first sphere,” another may be referred to as the “second sphere,” and another may be referred to as the “third sphere.”

[0142] Hereinafter, one of the “AF movable portion 1200”, the “OIS-x movable portion 1300”, and the “OIS-y movable portion 1400” may be referred to as a “first movable portion”, another may be referred to as a “second movable portion”, and another may be referred to as a “third movable portion”. In addition, the “movable portion” may be referred to as a “moving body” or a “mover”.

[0143] Hereinafter, one of the “AF carrier 1210”, the “OIS-x carrier 1310”, and the “OIS-y carrier 1410” may be referred to as a “first carrier”, another may be referred to as a “second carrier”, and another may be referred to as a “third carrier”. In addition, a “carrier” may be referred to as a “holder”, a “frame”, or a “spacer”.

[0144] Hereinafter, one of the “AF driving part 1500 ,” the “OIS-x driving part 1600 ,” and the “OIS-y driving part 1700 ” may be referred to as a “first driving part,” another may be referred to as a “second driving part,” and another may be referred to as a “third driving part.”

[0145] Hereinafter, one of the “AF magnet 1510”, “OIS-x magnet 1610”, “OIS-y magnet 1710”, and “attraction magnet 1955” may be referred to as a “first magnet”, another may be referred to as a “second magnet”, another may be referred to as a “third magnet”, and another may be referred to as a “fourth magnet”. Meanwhile, a “magnet” may be referred to as a “magnet”, “magnetite”, or “permanent magnet”.

[0146] Hereinafter, one of the “AF coil 1520 ,” the “OIS-x coil 1620 ,” and the “OIS-y coil 1720 ” may be referred to as a “first coil,” another may be referred to as a “second coil,” and another may be referred to as a “third coil.”

[0147] Hereinafter, one of the “AF sensor 1530 ,” the “OIS-x sensor 1630 ,” and the “OIS-y sensor 1730 ” may be referred to as a “first sensor,” another may be referred to as a “second sensor,” and another may be referred to as a “third sensor.”

[0148] Hereinafter, one of the “AF guide sphere 1810”, the “OIS-x guide sphere 1820”, and the “OIS-y guide sphere 1830” may be referred to as the “first sphere”, another may be referred to as the “second sphere”, and another may be referred to as the “third sphere”. Meanwhile, the “sphere” may be referred to as the “guide sphere”. For example, the “first sphere” may be referred to as the “first guide sphere”.

[0149] Hereinafter, one of the “AF attraction yoke 1910”, the “OIS-x attraction yoke 1920”, the “OIS-y attraction yoke 1930”, the “first additional pressure attraction yoke 1940” and the “second additional pressure attraction yoke 1950” may be referred to as the “first yoke”, another may be referred to as the “second yoke”, another may be referred to as the “third yoke”, another may be referred to as the “fourth yoke” and another may be referred to as the “fifth yoke”.

[0150] Hereinafter, any one of “groove 1111”, “groove 1211”, “groove 1311”, “groove 1312”, “groove 1411” and “groove 1412” may be referred to as a “first groove”, any other may be referred to as a “second groove”, any other may be referred to as a “third groove”, any other may be referred to as a “fourth groove”, any other may be referred to as a “fifth groove” and any other may be referred to as a “sixth groove”. Alternatively, “groove 1211” and “groove 1211” in which the AF guide ball 1810 is disposed may be collectively referred to as a “first groove”, “groove 1311” and “groove” in which the OIS-y guide ball 1830 is disposed may be collectively referred to as a “second groove”, and “groove 1111” and “groove 1312” in which the OIS-x guide ball 1820 is disposed may be collectively referred to as a “third groove”.

[0151] Hereinafter, one of the “side substrate 1130 ” and the “lower substrate 1140 ” may be referred to as a “first substrate” and the other may be referred to as a “second substrate”.

[0152] Hereinafter, one of the “x-axis direction” and the “y-axis direction” may be referred to as a “first direction” and the other may be referred to as a “second direction”.

[0153] The configuration of a lens driving device according to a first embodiment of the present invention will be described below with reference to the drawings.

[0154] Figure 1 is a perspective view of a lens driving device according to a first embodiment of the present invention, Figure 2 is from Figure 1 Cross-sectional view of AA observation, Figure 3 is from Figure 1 Cross-sectional view of BB observation, Figure 4 is from Figure 1 Cross-sectional view of CC observation, Figure 5 is from Figure 1 Cross-sectional view of DD observation, Figure 6 is a cross-sectional view of a lens driving device according to a first embodiment of the present invention, taken in a direction perpendicular to the optical axis, Figures 7 to 9are exploded perspective views of the lens driving device according to the first embodiment of the present invention viewed from different directions. Fig.10 is a perspective view of a lens driving device according to a first embodiment of the present invention in which a cover is omitted, Fig.11 is an exploded perspective view of a lens driving device according to a first embodiment of the present invention, showing a combined structure of a base, an OIS plate and related configurations, Fig.12 is a perspective view of a part of a fixing portion and related configurations of a lens driving device according to a first embodiment of the present invention, Fig.13 is shown with Fig.12 A bottom perspective view of an OIS-x carrier and related configurations connected to a fixed portion of the device, Fig.14 It shows that Fig.12 A perspective view of an OIS-x carrier disposed in a lens driving device in a state of Fig.15a is shown with Fig.14 A bottom perspective view of an OIS-y carrier connected to an OIS-x carrier and related configurations, Fig.15b is an exploded perspective view of an OIS-x carrier and an OIS-y carrier of a lens driving device according to a first embodiment of the present invention, Fig.15c is an exploded bottom perspective view of an OIS-x carrier and an OIS-y carrier of a lens driving device according to a first embodiment of the present invention, Fig.16 It shows that Fig.14 A perspective view of an OIS-y carrier disposed in a lens driving device in a state of Fig.17 is a perspective view of an OIS-x carrier and an OIS-y carrier and related configurations of a lens driving device according to a first embodiment of the present invention, Fig.18 is a perspective view showing an AF carrier and related configurations of a lens driving device according to a first embodiment of the present invention, Fig.19 is a perspective view of the lens driving device of the first embodiment of the present invention with the cover and the housing removed, Fig. 20 The AF substrate is removed. Fig.19 A front view of the lens driving device in the state of Fig.21 Observed from different directions Fig.19 A side view of the lens driving device in the state of Fig. 22 It is from Fig. 20 Observed in the opposite direction Fig.21 A side view of the lens driving device in the state of Fig.23 is a perspective view of the lens driving device of the first embodiment of the present invention with the cover and the movable part removed, Fig.24 is a perspective view showing a driving portion and related configuration of a lens driving device according to a first embodiment of the present invention, Fig.25aObserved from the other direction Fig.24 A three-dimensional diagram of the lens driving device in the state of Fig.25b is a perspective view showing the shape and related configuration of an AF magnet according to a modified example.

[0155] The lens driving device 10 may be a voice coil motor (VCM). The lens driving device 10 may be a lens driving motor. The lens driving device 10 may be a lens driving actuator. The lens driving device 10 may include an AF module. The lens driving device 10 may include an OIS module.

[0156] The lens driving device 10 may include a fixed portion 100. The fixed portion 100 may be a relatively fixed portion when the movable portion moves. The movable portion may move relative to the fixed portion.

[0157] The lens driving device 10 may include a base 110. The fixing portion 100 may include the base 110. The base 100 may be disposed below the OIS carrier. The base 100 may be disposed below the AF carrier 300. The base 110 may be coupled to the cover 150. The AF carrier 300 and the OIS carrier 200 may be disposed on the base 110. The AF carrier 300 and the OIS carrier 200 may be disposed on a bottom plate of the base 110. The AF carrier 300 and the OIS carrier 200 may be disposed within the base 110. The AF carrier 300 and the OIS carrier 200 may be disposed within a side plate of the base 110. The description of the OIS carrier 200 may be applied to the OIS-x carrier 210 and the OIS-y carrier 220, respectively.

[0158] The base 110 may include a groove 111. The groove 111 may be a "yoke receiving groove". The groove 111 may be concavely formed on the upper surface of the base 110. The groove 111 may accommodate the yokes 440, 540. The yokes 440, 540 may be disposed in the groove 111. The groove 111 may be formed in a shape corresponding to the yokes 440, 540. The groove 111 may include a plurality of grooves. The groove 111 may include four grooves. The groove 111 may include first to fourth grooves.

[0159] The base 110 may include a groove 112. The groove 112 may be a "terminal receiving groove". The groove 111 may be concavely formed on the outer surface of the base 110. The terminal portion 131 of the OIS substrate 130 may be disposed in the groove 111. At least a portion of the AF substrate 140 may be disposed in the groove 111. The terminal portion of the AF substrate 140 may be disposed in the groove 111.

[0160] One of the groove 111 and the groove 112 of the base 110 may be referred to as a “first groove” and the other may be referred to as a “second groove”.

[0161] The lens driving device 10 may include a housing 120. The fixed portion 100 may include the housing 120. The housing 120 may be disposed on the base 110. The housing 120 may be disposed at the base 110. The housing 120 may be disposed outside the OIS carrier 200. The housing 120 may be disposed outside the OIS-x carrier 210. The housing 120 may be disposed outside the OIS-y carrier 220. The housing 120 may be disposed outside the AF carrier 300. The housing 120 may be disposed between the cover 150 and the OIS carrier 200. The housing 120 may be disposed between the cover 150 and the AF carrier 300. The housing 120 may be disposed between the cover 150 and the base 110. The housing 120 may be disposed on the OIS substrate 130. The housing 120 may be disposed at the OIS substrate 130. The housing 120 may not move.

[0162] As a modified example, the housing 120 and the base 110 may be integrally formed. That is, only the integral base 110 may be provided and the housing 120 may be omitted. Alternatively, only the integral housing 120 may be provided and the base 110 may be omitted.

[0163] Alternatively, only the base 110 may be omitted. In this case, the OIS substrate 130 may be provided between the sensor base 40 and the housing 120 .

[0164] The housing 120 may include a stepped portion 121. The stepped portion 121 may be formed on the outer circumference of the housing 120. The stepped portion 121 may be formed as a protrusion at the lower end of the outer circumference of the housing 120. The stepped portion 121 may be provided with a side plate 152 of the cover 150. The stepped portion 121 may overlap with the side plate 152 of the cover 150 in the optical axis direction.

[0165] The housing 120 may include a lower plate 122. The lower plate 122 may be disposed on the base 110. The lower plate 122 may be disposed below the OIS carrier 200. The lower plate 122 may be disposed below the AF carrier 200. The lower plate 122 may be disposed between the base 110 and the OIS carrier 200. The lower plate 122 may support the OIS carrier 200. The lower plate 122 may support the AF carrier 300.

[0166] The housing 120 may include a groove 123. The groove 123 may be an "OIS-x guide ball receiving groove". The groove 123 may be formed on the upper surface of the lower plate 122 of the housing 120. The groove 123 may be concavely formed on the upper surface of the lower plate 122 of the housing 120. The groove 123 may accommodate at least a portion of the OIS-x guide ball 710. The OIS-x guide ball 710 may be disposed in the groove 123. The groove 123 may be formed as a V-shaped groove having a V-shaped cross-section. The groove 123 may contact the OIS-x guide ball 710 at two points. The groove 123 may include a plurality of grooves. The groove 123 may include four grooves. The groove 123 may include first to fourth grooves.

[0167] The lens driving device 10 may include a substrate. The substrate may include an OIS substrate 130. The substrate may include an AF substrate 140. The OIS substrate 130 and the AF substrate 140 may be formed separately. In a modified example, the OIS substrate 130 and the AF substrate 140 may be formed integrally.

[0168] The lens driving device 10 may include an OIS substrate 130. The fixed part 100 may include the OIS substrate 130. The OIS substrate 130 may be a flexible printed circuit board (FPCB). The OIS substrate 130 may be disposed on the base 110. An OIS-x coil 410 may be disposed on the OIS substrate 130. An OIS-y coil 510 may be disposed on the OIS substrate 130. An OIS-x sensor 430 may be disposed on the OIS substrate 130. An OIS-y sensor 530 may be disposed on the OIS substrate 130. An OIS-x yoke 440 may be disposed on the OIS substrate 130. An OIS-y yoke 540 may be disposed on the OIS substrate 130. The OIS-x coil 410, the OIS-y coil 510, the OIS-x sensor 430, and the OIS-y sensor 530 may be disposed on the upper surface of the OIS substrate 130. The OIS-x yoke 440 and the OIS-y yoke 540 may be disposed on a lower surface of the OIS substrate 130. The OIS substrate 130 may be electrically connected to the OIS-x coil 410, the OIS-y coil 510, the OIS-x sensor 430, and the OIS-y sensor 530.

[0169] The OIS substrate 130 may include a body portion. The body portion may be disposed on the upper surface of the base 110. The body portion may be arranged with an OIS-x coil 410, an OIS-y coil 510, an OIS-x sensor 430, an OIS-y sensor 530, an OIS-x yoke 440, and an OIS-y yoke 540. The body portion may include a hollow hole.

[0170] The OIS substrate 130 may include a terminal portion 131. The terminal portion 131 may extend from the body portion. The terminal portion 131 may extend from the outer edge of the body portion. The terminal portion 131 may extend downward from the outer edge of the body portion. The terminal portion 131 may be bent from the body portion. The terminal portion 131 may be disposed on a side surface of the base 110. The terminal portion 131 may be provided with a terminal. A plurality of terminals may be provided on an outer surface of the terminal portion 131. The terminals of the OIS substrate 130 may be electrically connected to the OIS-x coil 410, the OIS-y coil 510, the OIS-x sensor 430, and the OIS-y sensor 530.

[0171] The lens driving device 10 may include an AF substrate 140. The fixed portion 100 may include the AF substrate 140. The AF substrate 140 may be a flexible printed circuit board (FPCB). The AF substrate 140 may be disposed in the housing 120. An AF coil 610 may be disposed on the AF substrate 140. An AF sensor 630 may be disposed on the AF substrate 140. The AF substrate 140 may include an AF yoke 640. The AF coil 610 and the AF sensor 630 may be disposed on an inner surface of the AF substrate 140. The AF yoke 640 may be disposed on an outer surface of the AF substrate 140. The AF substrate 141 may be electrically connected to the AF coil 610 and the AF sensor 630.

[0172] The AF substrate 140 may include a terminal 141. The terminal 141 of the AF substrate 140 may be electrically connected to the AF coil 610 and the AF sensor 630. The terminal 141 may be formed at a lower portion of an outer surface of the AF substrate 140. The terminal 141 may include a plurality of terminals.

[0173] The lens driving device 10 may include a cover 150. The fixing portion 100 may include the cover 150. The cover 150 may be disposed on the base 110. The cover 150 may be disposed on the base 110. The cover 150 may be coupled to the base 110. The cover 150 may be fixed to the base 110. The cover 150 may be disposed in the housing 120. The cover 150 may be coupled to the housing 120. The cover 150 may be fixed to the housing 120. The cover 150 may accommodate the AF carrier 300 inside. The cover 150 may accommodate the OIS carrier 200 inside. The cover 150 may be a shielding member. The cover 150 may be a shielding cover.

[0174] The cover 150 may include an upper plate 151. The upper plate 151 may be disposed on the movable portion. The upper side movement of the movable portion may be restricted by the movable portion contacting the upper plate 151. The upper plate 151 may include a hole through which light passes.

[0175] The cover 150 may include a side plate 152. The side plate 152 may extend from the upper plate 151. The side plate 152 may be disposed in the housing 120. The side plate 152 may extend from the upper plate 151. The side plate 152 may be disposed in a stepped portion 121 protruding at a lower portion of an outer side surface of the housing 120. The side plate 152 may include a plurality of side plates. The side plate 152 may include four side plates. The side plate 152 may include a first side plate and a second side plate disposed on opposite sides of each other and a third side plate and a fourth side plate disposed on opposite sides of each other.

[0176] The lens driving device 10 may include a movable part. The movable part may be arranged in the fixed part 100. The movable part may be arranged inside the fixed part 100. The movable part may be arranged on the fixed part 100. The movable part may be arranged in the fixed part 100 in a movably manner. The movable part may be moved relative to the fixed part 100 by the driving part. When AF is driven, the movable part may move. When OIS is driven, the movable part may move. The lens may be connected to the movable part.

[0177] The movable portion may include an OIS movable portion. The movable portion may include an OIS-x movable portion. The movable portion may include an OIS-y movable portion. The movable portion may include an AF movable portion.

[0178] The lens driving device 10 may include an OIS movable part. The OIS movable part may be arranged in the fixed part 100. The OIS movable part may be arranged inside the fixed part 100. The OIS movable part may be arranged on the fixed part 100. The OIS movable part may be arranged between the fixed part 100 and the AF movable part. The OIS movable part may be arranged in a movable manner. The OIS movable part may be moved in a direction perpendicular to the optical axis by the OIS driving part. When the OIS is driven, the OIS movable part may move.

[0179] The lens driving device 10 may include an OIS carrier 200. The OIS carrier 200 may be an "OIS holder". The OIS carrier 200 may be disposed in the fixed part 100. The OIS carrier 200 may be disposed within the fixed part 100. The OIS carrier 200 may be disposed on the fixed part 100. The OIS carrier 200 may be disposed between the fixed part 100 and the AF movable part. The OIS carrier 200 may be arranged in a movably manner. The OIS carrier 200 may be moved by the OIS driving part in a direction perpendicular to the optical axis. The OIS carrier 200 may move when image stabilization (OIS) operates.

[0180] The lens driving device 10 may include an OIS-x movable part. The OIS movable part may include an OIS-x movable part. The OIS-x movable part may be arranged in the fixed part 100. The OIS-x movable part may be arranged in the fixed part 100. The OIS-x movable part may be arranged on the fixed part 100. The OIS-x movable part may be arranged between the fixed part 100 and the OIS-y movable part. The OIS-x movable part may be arranged between the fixed part 100 and the AF movable part. The OIS-x movable part may be arranged in a movable manner. The OIS-x movable part may be moved along the x-axis direction perpendicular to the optical axis by the OIS-x driving part.

[0181] The lens driving device 10 may include an OIS-x carrier 210. The movable part may include the OIS-x carrier 210. The OIS-x movable part may include the OIS-x carrier 210. The OIS carrier 200 may include the OIS-x carrier 210. The OIS-x carrier 210 may be an "OIS-x holder". The OIS-x carrier 210 may be disposed in the fixed part 100. The OIS-x carrier 210 may be disposed in the housing 120. The OIS-x carrier 210 may be disposed within the fixed part 100. The OIS-x carrier 210 may be disposed within the housing 120. The OIS-x carrier 210 may be disposed on the fixed part 100. The OIS-x carrier 210 may be disposed on the housing 120. The OIS-x carrier 210 may be disposed between the fixed part 100 and the OIS-y carrier 220. The OIS-x carrier 210 may be disposed between the fixed part 100 and the AF carrier 300. The OIS-x carrier 210 may be movably mounted and may be moved along an x-axis direction perpendicular to the optical axis by an OIS-x driving part.

[0182] The OIS-x carrier 210 can move to both sides of the x-axis until it contacts the housing 120. The point where the OIS-x carrier 210 and the housing 120 contact can be the maximum travel range. The OIS-x carrier 210 can move within the maximum travel range. In other words, the limit of the movement distance of the OIS-x carrier 210 in the x-axis direction can be determined by the contact with the housing 120. In other words, the OIS-x carrier 210 can contact the housing 120 during the movement process in the x-axis direction without contacting the OIS-y carrier 220. The OIS-x carrier 210 may include a stopper that contacts the housing 120. The housing 120 may include a stopper that contacts the stopper of the OIS-x carrier 210.

[0183] The OIS-x carrier 210 may include a groove 211. The groove 211 may be an "OIS-x guide ball receiving groove". The groove 211 may be formed on the lower surface of the OIS-x carrier 210. The groove 211 may be concavely formed on the lower surface of the OIS-x carrier 210. The groove 211 may accommodate at least a portion of the OIS-x guide ball 710. The OIS-x guide ball 710 may be disposed in the groove 211. The groove 211 may be formed as a V-shaped groove having a V-shaped cross-section. The groove 211 may contact the OIS-x guide ball 710 at two points. The groove 211 may include a plurality of grooves. The groove 211 may include four grooves. The groove 211 may include first to fourth grooves.

[0184] The groove 211 of the OIS-x carrier 210 may be formed in a position corresponding to the groove 123 of the housing 120. The groove 211 of the OIS-x carrier 210 may be formed in a position corresponding to the groove 123 of the housing 120 in the optical axis direction. The groove 211 of the OIS-x carrier 210 may overlap with the groove 123 of the housing 120 in the optical axis direction. The groove 211 of the OIS-x carrier 210 may be positioned opposite to the groove 123 of the housing 120.

[0185] The OIS-x carrier 210 may include a groove 212. The groove 212 may be an "OIS-y guide ball receiving groove". The groove 212 may be formed on the upper surface of the OIS-x carrier 210. The groove 212 may be concavely formed on the upper surface of the OIS-x carrier 210. The groove 212 may accommodate at least a portion of the OIS-y guide ball 720. The OIS-y guide ball 720 may be disposed in the groove 212. The groove 212 may be formed as a V-shaped groove having a V-shaped cross-section. The groove 212 may contact the OIS-y guide ball 720 at two points. The groove 212 may include a plurality of grooves. The groove 212 may include four grooves. The groove 212 may include a first groove to a fourth groove.

[0186] The OIS-x carrier 210 may include a groove 213. The groove 213 may be an "OIS-y carrier protrusion avoidance groove". The groove 213 may be formed in a corner region of the OIS-x carrier 210. The groove 213 may be formed in two of the four corner regions of the OIS-x carrier 210. The two corner regions may be arranged in directions diagonal to each other. The protrusion 223 of the OIS-y carrier 220 may be disposed in the groove 213. The groove 213 may be formed so that the protrusions 223 of the OIS-x carrier 210 and the OIS-y carrier 220 do not interfere with each other. The protrusion 223 of the OIS-y carrier 220 may be inserted into the groove 213. The groove 213 may be larger than the protrusion 223. Even when the OIS-y carrier 220 moves, the protrusion 223 may not contact the groove 213.

[0187] One of the groove 211 , the groove 212 , and the groove 213 of the OIS-x carrier 210 may be referred to as a “first groove”, another may be referred to as a “second groove”, and another may be referred to as a “third groove”.

[0188] The lens driving device 10 may include an OIS-y movable part. The OIS movable part may include an OIS-y movable part. The OIS-y movable part may be arranged in the fixed part 100. The OIS-y movable part may be arranged in the fixed part 100. The OIS-y movable part may be arranged on the fixed part 100. The OIS-y movable part may be arranged between the OIS-x movable part and the AF movable part. The OIS-y movable part may be arranged between the fixed part 100 and the AF movable part. The OIS-y movable part may be arranged in a movable manner. The OIS-y movable part may be moved along the y-axis direction perpendicular to the optical axis by the OIS-x driving part.

[0189] The lens driving device 10 may include an OIS-y carrier 220. The movable part may include an OIS-y carrier 220. The OIS-y movable part may include an OIS-y carrier 220. The OIS carrier 200 may include an OIS-y carrier 220. The OIS-y carrier 220 may be an "OIS-y holder". The OIS-y carrier 220 may be disposed in the fixed part 100. The OIS-y carrier 220 may be disposed within the fixed part 100. The OIS-y carrier 220 may be disposed within the housing 120. The OIS-y carrier 220 may be disposed on the fixed part 100. The OIS-y carrier 220 may be disposed on the base 110. The OIS-y carrier 220 may be disposed in the OIS-x carrier 210. The OIS-y carrier 220 may be disposed on the OIS-x carrier 210. The OIS-y carrier 220 may be disposed between the fixed part 100 and the AF carrier 300. The OIS-y carrier 220 may be disposed between the OIS-x carrier 210 and the AF carrier 300. The OIS-y carrier 220 may be disposed in a movable manner. The OIS-y carrier 220 may be moved along a y-axis direction perpendicular to the optical axis by an OIS-y driving part.

[0190] The OIS-y carrier 220 may include a groove 221. The groove 221 may be an "AF guide ball receiving groove". The groove 221 may be formed on the inner side of the OIS-y carrier 220. The groove 221 may be formed concavely on the inner side of the OIS-y carrier 220. The groove 221 may accommodate at least a portion of the AF guide ball 730. The AF guide ball 730 may be disposed in the groove 221. The groove 221 may be formed as a V-shaped groove having a V-shaped cross-section. The groove 221 may contact the AF guide ball 730 at two points. The groove 221 may include a plurality of grooves. The groove 221 may include two grooves. The groove 221 may include a first groove and a second groove. Three balls may be disposed in each of the two grooves.

[0191] The OIS-y carrier 220 may include a groove 222. The groove 222 may be an "OIS-y guide ball receiving groove". The groove 222 may be formed on the lower surface of the OIS-y carrier 220. The groove 222 may be concavely formed on the lower surface of the OIS-y carrier 220. The groove 222 may accommodate at least a portion of the OIS-y guide ball 720. The OIS-y guide ball 720 may be disposed in the groove 222. The groove 222 may be formed as a V-shaped groove having a V-shaped cross-section. The groove 222 may contact the OIS-y guide ball 720 at two points. The groove 222 may include a plurality of grooves. The groove 222 may include four grooves. The groove 222 may include first to fourth grooves.

[0192] The groove 222 of the OIS-y carrier 220 may be formed in a position corresponding to the groove 212 of the OIS-x carrier 210. The groove 222 of the OIS-y carrier 220 may be formed in a position corresponding to the groove 212 of the OIS-x carrier 210 in the optical axis direction. The groove 222 of the OIS-y carrier 220 may overlap with the groove 212 of the OIS-x carrier 210 in the optical axis direction. The groove 222 of the OIS-y carrier 220 may be positioned to face the groove 212 of the OIS-x carrier 210.

[0193] The OIS-y carrier 220 may include a protrusion 223. The protrusion 223 may be a "magnet placement portion". The protrusion 223 may be a "protrusion". The OIS-y magnet 520 may be disposed in the protrusion 223. The protrusion 223 may include a groove in which the OIS-y magnet 520 is placed. The protrusion 223 may overlap with the OIS-x carrier 210 in a direction perpendicular to the optical axis. The protrusion 223 may protrude in the direction of the OIS-y coil 510. The protrusion 223 may protrude downward.

[0194] The OIS-y carrier 220 may include a protrusion 224. The protrusion 224 may be shaped to conform to the groove of the OIS-x carrier 210. However, the protrusion 224 may not contact the OIS-x carrier 210.

[0195] One of the groove 221 and the groove 222 of the OIS-y carrier 220 may be referred to as a “first groove” and the other may be referred to as a “second groove”. One of the protrusion 223 and the protrusion 224 of the OIS-y carrier 220 may be referred to as a “first protrusion” and the other may be referred to as a “second protrusion”.

[0196] The lens driving device 10 may include an AF movable part. The movable part may include an AF movable part. The AF movable part may be arranged in the fixed part 100. The AF movable part may be arranged in the fixed part 100. The AF movable part may be arranged on the fixed part 100. The AF movable part may be arranged in the OIS movable part. The AF movable part may be arranged in the OIS movable part. The AF movable part may be arranged in the fixed part 100 in a movably manner. The AF movable part may be arranged in the OIS movable part in a movably manner. The AF movable part may be moved along the optical axis direction relative to the fixed part 100 and the OIS movable part by the AF driving part. When the auto focus AF is enabled, the AF movable part may move.

[0197] The lens driving device 10 may include an AF carrier 300. The movable part may include the AF carrier 300. The AF carrier 300 may be an "AF holder". The AF carrier 300 may be a "coil frame". The AF carrier 300 may be disposed in the housing 120. The AF carrier 300 may be disposed on the base 110. The AF carrier 300 may be disposed in the cover 150. The AF carrier 300 may be disposed on the OIS carrier 200. The AF carrier 300 may be disposed in the OIS carrier 200. The AF carrier 300 may be disposed on the OIS-x carrier 210. The AF carrier 300 may be disposed on the OIS-y carrier 220. The AF carrier 300 may be disposed on the OIS-y carrier 220. The AF carrier 300 may be disposed in a movably manner along the optical axis direction.

[0198] The AF carrier 300 may move together with the OIS carrier 200. The AF carrier 300 may move together with the OIS-x carrier 210. The AF carrier 300 may move together with the OIS-y carrier 220. When the OIS carrier 200 is moved by the OIS driving portion, the AF carrier 300 may also move together with the OIS carrier 200.

[0199] The AF carrier 300 may include a groove 310. The groove 310 may be an "AF guide ball receiving groove". The groove 310 may be formed on the outer surface of the AF carrier 300. The groove 310 may be concavely formed on the outer surface of the AF carrier 300. The groove 310 may accommodate at least a portion of the AF guide ball 730. The AF guide ball 730 may be disposed in the groove 310. The groove 310 may be formed as a V-shaped groove having a V-shaped cross-section. The groove 310 may contact the AF guide ball 730 at two points. The groove 310 may include a plurality of grooves. The groove 310 may include two grooves. The groove 310 may include a first groove and a second groove. Three balls may be disposed in each of the two grooves.

[0200] The groove 310 of the AF carrier 300 may be formed in a position corresponding to the groove 221 of the OIS-y carrier 220. The groove 310 of the AF carrier 300 may be formed in a position corresponding to the groove 221 of the OIS-y carrier 220 in a direction perpendicular to the optical axis. The groove 310 of the AF carrier 300 may overlap with the groove 221 of the OIS-y carrier 220 in a direction perpendicular to the optical axis. The groove 310 of the AF carrier 300 may overlap with the groove 221 of the OIS-y carrier 220 in a y-axis direction perpendicular to the optical axis. The groove 310 of the AF carrier 300 may be disposed opposite to the groove 221 of the OIS-y carrier 220.

[0201] The AF carrier 300 may include an upper plate 320. The upper plate 320 of the AF carrier 300 may be disposed on the OIS-y carrier 220. The upper plate 320 of the AF carrier 300 may overlap with the OIS-y carrier 220 in the optical axis direction. The upper plate 320 of the AF carrier 300 may be disposed between the OIS-y carrier 220 and the upper plate 151 of the cover 150.

[0202] The lens driving device 10 may include a driving part. The driving part may move the movable part relative to the fixed part 100. The driving part may include an AF driving part. The driving part may include an OIS driving part. The driving part may include a coil and a magnet.

[0203] The OIS driving part may move the lens in a direction perpendicular to the optical axis. The OIS driving part may move the OIS carrier 200 perpendicular to the optical axis relative to the fixing part 100. The OIS driving part may include an OIS-x driving part. The OIS driving part may include an OIS-y driving part.

[0204] The lens driving device 10 may include an OIS-x driving part. The OIS-x driving part may move the OIS-x carrier 210 along the x-axis direction perpendicular to the optical axis. The OIS-x driving part may move the OIS-x carrier 210 along the x-axis direction perpendicular to the optical axis by electromagnetic force. The OIS-x driving part may include a coil and a magnet. The OIS-x driving part may include an OIS-x magnet 420 and an OIS-x coil 410 that may move the OIS carrier 200 along the x-axis direction perpendicular to the optical axis. The OIS-x driving part may include an OIS-x magnet 420 and an OIS-x coil 410 that may move the OIS-x carrier 210 along the x-axis direction perpendicular to the optical axis. The OIS-x driving part may include an OIS-x magnet 420 and an OIS-x coil 410 that may move the OIS-x carrier 210 along the x-axis direction perpendicular to the optical axis. The OIS-x driving part may include an OIS-x magnet 420 and an OIS-x coil 410 that may move the OIS-x carrier 210 and the OIS-y carrier 220 along the x-axis direction perpendicular to the optical axis.

[0205] The lens driving device 10 may include an OIS-x coil 410. The OIS-x driving part may include an OIS-x coil 410. The OIS-x coil 410 may interact with an OIS-x magnet 420. The OIS-x coil 410 may move the OIS-x magnet 420 in an x-axis direction perpendicular to the optical axis. The OIS-x coil 410 may move the OIS-x magnet 420 in an x-axis direction perpendicular to the optical axis by interacting with the OIS-x magnet 420. The OIS-x coil 410 may be opposite to the OIS-x magnet 420. The OIS-x coil 410 may face the OIS-x magnet 420. The OIS-x coil 410 may be disposed in a position corresponding to the OIS-x magnet 420. The OIS-x coil 410 may overlap with the OIS-x magnet 420 in the optical axis direction. The OIS-x coil 410 may be disposed on the OIS substrate 130. The OIS-x coil 410 may be disposed on an upper surface of the OIS-x substrate 130. The OIS-x coil 410 may be disposed in a body portion of the OIS substrate 130. The OIS-x coil 410 may be disposed on the base 110. The OIS-x coil 410 may be disposed in the fixed portion 100.

[0206] The lens driving device 10 may include an OIS-x magnet 420. The OIS-x driving part may include an OIS-x magnet 420. The OIS-x magnet 420 may be disposed on the OIS-x carrier 210. The OIS-x magnet 420 may be disposed on the lower surface of the OIS-x carrier 210. The OIS-x magnet 420 may be fixed to the OIS-x carrier 210. The OIS-x magnet 420 may be coupled to the OIS-x carrier 210. The OIS-x magnet 420 may be bonded to the OIS-x carrier 210 with an adhesive. The OIS-x magnet 420 may be disposed within the cover 150. The OIS-x magnet 420 may interact with the OIS-x coil 410. The OIS-x magnet 420 may electromagnetically interact with the OIS-x coil 410. The OIS-x magnet 420 may be disposed in a position corresponding to the OIS-x coil 410. The OIS-x magnet 420 may face the OIS-x coil 410. The OIS-x magnet 420 may face the OIS-x coil 410. The OIS-x magnet 420 may overlap with the OIS-x coil 410 in the optical axis direction.

[0207] The OIS-x magnet 420 and the OIS-y magnet 520 may overlap on a virtual plane perpendicular to the optical axis. In this case, the virtual plane and the AF magnet 620 may not overlap. The OIS-x magnet 420 and the OIS-y magnet 520 may overlap each other in a direction perpendicular to the optical axis. The OIS-x magnet 420 and the OIS-y magnet 520 may not overlap with the AF magnet 620 in a direction perpendicular to the optical axis.

[0208] The OIS-x magnet 420 may be a quadrupole magnet. The OIS-x magnet 420 may include a quadrupole magnetized magnet. The OIS-x magnet 420 may include a first magnet portion including an N pole and an S pole and a second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a horizontal direction. The first magnet portion and the second magnet portion are spaced apart in a horizontal direction, and a neutral zone may be arranged between the first magnet portion and the second magnet portion. The neutral zone may be arranged parallel to the optical axis.

[0209] The lens driving device 10 may include an OIS-x sensor 430. The OIS-x driving part may include the OIS-x sensor 430. The OIS-x sensor 430 may be disposed on the OIS substrate 130. The OIS-x sensor 430 may be disposed in a body portion of the OIS substrate 130. The OIS-x sensor 430 may include a Hall sensor. The OIS-x sensor 430 may detect the OIS-x magnet 420. The OIS-x sensor 430 may detect the magnetic force of the OIS-x magnet 420. The OIS-x sensor 430 may be disposed within the OIS-x coil 410. The OIS-x sensor 430 may overlap with the OIS-x coil 410 in a direction perpendicular to the optical axis. The OIS-x sensor 430 may be opposite to the OIS-x magnet 420. The OIS-x sensor 430 may be disposed in a position corresponding to the OIS-x magnet 420. The OIS-x sensor 430 may detect the movement of the OIS-x magnet 420. The amount or position of the movement of the OIS-x magnet 420 detected by the OIS-x sensor 430 may be used for feedback of the image stabilization driving based on the x-axis direction.

[0210] The lens driving device 10 may include an OIS-x yoke 440. The OIS-x yoke 440 may be disposed on the OIS substrate 130. The OIS-x yoke 440 may be disposed on the lower surface of the OIS substrate 130. The OIS-x yoke 440 may be disposed in the groove 111 of the base 110. The OIS-x yoke 440 may be disposed in a position corresponding to the OIS-x coil 410. The OIS-x yoke 440 may be disposed in a position corresponding to the OIS-x magnet 420.

[0211] An attractive force may act between the OIS-x magnet 420 and the OIS-x yoke 440. The OIS-x magnet 420 may be pressed in a direction facing the OIS-x yoke 440. The OIS-x carrier 210 may be pressed in a direction facing the lower plate 122 of the housing 120. The OIS-x carrier 210 may be pressed in a direction toward the lower plate 122 of the housing 120 using the OIS-x guide sphere 710 between the lower plate 122 of the housing 120 and the OIS-x carrier 210. This allows the OIS-x guide sphere 710 to maintain contact with the OIS-x carrier 210 and the lower plate 122 of the housing 120.

[0212] The lens driving device 10 may include an OIS-y driving part. The OIS-y driving part may move the OIS-y carrier 220 in the y-axis direction perpendicular to the optical axis. The OIS-y driving part may move the OIS-y carrier 220 in the y-axis direction perpendicular to the optical axis by electromagnetic force. The OIS-y driving part may include a coil and a magnet. The OIS-y driving part may include an OIS-y magnet 520 and an OIS-y coil 510 that may move the OIS carrier 200 in the y-axis direction perpendicular to both the optical axis and the x-axis. The OIS-y driving part may include an OIS-y magnet 520 and an OIS-y coil 510 that may move the OIS-y carrier 220 in the y-axis direction perpendicular to both the optical axis and the x-axis.

[0213] The lens driving device 10 may include an OIS-y coil 510. The OIS-y driving portion may include an OIS-y coil 510. The OIS-y coil 510 may interact with an OIS-y magnet 520. The OIS-y coil 510 may enable the OIS-y magnet 520 to move in the y-axis direction perpendicular to the optical axis. The OIS-y coil 510 may enable the OIS-y magnet 520 to move in the y-axis direction perpendicular to the optical axis by interacting with the OIS-y magnet 520. The OIS-y coil 510 may be opposite to the OIS-y magnet 520. The OIS-y coil 510 may face the OIS-y magnet 520. The OIS-y coil 510 may be disposed in a position corresponding to the OIS-y magnet 520. The OIS-y coil 510 may overlap with the OIS-y magnet 520 in the optical axis direction. The OIS-y coil 510 may be disposed on the OIS substrate 130. The OIS-y coil 510 may be disposed on an upper surface of the OIS substrate 130. The OIS-y coil 510 may be disposed in a body portion of the OIS substrate 130. The OIS-y coil 510 may be disposed on the base 110. The OIS-y coil 510 may be disposed in the fixed portion 100.

[0214] The lens driving device 10 may include an OIS-y magnet 520. The OIS-y driving portion may include an OIS-y magnet 520. The OIS-y magnet 520 may be disposed on the OIS-y carrier 220. The OIS-y magnet 520 may be disposed on the lower surface of the OIS-y carrier 220. The OIS-y magnet 520 may be fixed to the OIS-y carrier 220. The OIS-y magnet 520 may be coupled to the OIS-y carrier 220. The OIS-y magnet 520 may be bonded to the OIS-y carrier 220 with an adhesive. The OIS-y magnet 520 may be disposed within the cover 150. The OIS-y magnet 520 may interact with the OIS-y coil 510. The OIS-y magnet 520 may electromagnetically interact with the OIS-y coil 510. The OIS-y magnet 520 may be disposed in a position corresponding to the OIS-y coil 510. The OIS-y magnet 520 may face the OIS-y coil 510. The OIS-y magnet 520 may face the OIS-y coil 510. The OIS-y magnet 520 may overlap the OIS-y coil 510 in the optical axis direction. The OIS-y magnet 520 may be disposed between the OIS-y carrier 220 and the OIS-y coil 510. The OIS-y magnet 520 may be disposed lower than the OIS-x guide spherical member 710.

[0215] The OIS-y magnet 520 may be a quadrupole magnet. The OIS-y magnet 520 may include a quadrupole magnetized magnet. The OIS-y magnet 520 may include a first magnet portion including an N pole and an S pole and a second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a horizontal direction. The first magnet portion and the second magnet portion are spaced apart in a horizontal direction, and a neutral zone may be arranged between the first magnet portion and the second magnet portion. The neutral zone may be arranged parallel to the optical axis.

[0216] The lens driving device 10 may include an OIS-y sensor 530. The OIS-y driving part may include the OIS-y sensor 530. The OIS-y sensor 530 may be disposed on the OIS substrate 130. The OIS-y sensor 530 may be disposed in the body portion of the OIS substrate 130. The OIS-y sensor 530 may include a Hall sensor. The OIS-y sensor 530 may detect the OIS-y magnet 520. The OIS-y sensor 530 may detect the magnetic force of the OIS-y magnet 520. The OIS-y sensor 530 may be disposed within the OIS-y coil 510. The OIS-y sensor 530 may overlap with the OIS-y coil 510 in a direction perpendicular to the optical axis. The OIS-y sensor 530 may be opposite to the OIS-y magnet 520. The OIS-y sensor 530 may be disposed in a position corresponding to the OIS-y magnet 520. The OIS-y sensor 530 may detect the movement of the OIS-y magnet 520. The amount or position of movement of the OIS-y magnet 520 detected by the OIS-y sensor 530 may be used for feedback of the y-axis directed image stabilization drive.

[0217] The lens driving device 10 may include an OIS-y yoke 540. The OIS-y yoke 540 may be disposed on the OIS substrate 130. The OIS-y yoke 540 may be disposed on the lower surface of the OIS substrate 130. The OIS-y yoke 540 may be disposed in the groove 111 of the base 110. The OIS-y yoke 540 may be disposed in a position corresponding to the OIS-y coil 510. The OIS-y yoke 540 may be disposed in a position corresponding to the OIS-y magnet 520.

[0218] An attractive force may act between the OIS-y magnet 520 and the OIS-y yoke 540. The OIS-y magnet 520 may be pressed in a direction facing the OIS-y yoke 540. The OIS-y carrier 220 may be pressed in a direction facing the OIS-x carrier 210. The OIS-y carrier 220 may be pressed in a direction facing the OIS-x carrier 210 using the OIS-y guide spherical member 720 between the OIS-x carrier 210 and the OIS-y carrier 220. This allows the OIS-y guide spherical member 720 to maintain contact with the OIS-y carrier 220 and the OIS-x carrier 210.

[0219] The lens driving device 10 may include an AF driving part. The AF driving part may move the AF carrier 300 along the optical axis relative to the fixed part 100. The AF driving part may move the AF carrier 300 along the optical axis. The AF driving part may move the AF carrier 300 along the optical axis by electromagnetic force. The AF driving part may include a coil and a magnet.

[0220] The lens driving device 10 may include an AF coil 610. The AF driving part may include the AF coil 610. The AF coil 610 may interact with the AF magnet 620. The AF coil 610 may move the AF magnet 620 in the optical axis direction. The AF coil 610 may move the AF magnet 620 in the optical axis direction by interacting with the AF magnet 620. The AF coil 610 may face the AF magnet 620. The AF coil 610 may be opposite to the AF magnet 620. The AF coil 610 may be arranged in a position corresponding to the AF magnet 620. The AF coil 610 may overlap with the AF magnet 620 in a direction perpendicular to the optical axis. The AF coil 610 may be arranged on the AF substrate 140. The AF coil 610 may be arranged on the inner surface of the AF substrate 140. The AF coil 610 may be arranged on the inner side of the AF substrate 140. The AF coil 610 may be arranged in the housing 120.

[0221] In the first embodiment of the present invention, the AF coil 610 can be set in the fixed part 100. The AF coil 610 can be set in the housing 120. In other words, the AF coil 610 can be fixed. Even when AF is driven, the AF coil 610 can be fixed without moving. In addition, even when OIS is driven, the AF coil 610 can be fixed without moving. This structure allows the distance between the AF coil 610 and the AF magnet 620 to be changed when OIS is driven. When the OIS carrier 200 is moved by the OIS drive, the AF carrier 300 can also move with the OIS carrier 200. When the OIS carrier 200 is moved by the OIS-y magnet 520 and the OIS-y coil 510, the AF carrier 300 can also move with the OIS carrier 200, so that the distance between the AF magnet 620 and the AF coil 610 can be changed. When the OIS carrier 200 moves through the OIS-y magnet 520 and the OIS-y coil 510, the AF carrier 300 may also move together with the OIS carrier 200, so that the distance between the AF magnet 620 and the AF coil 610 may be changed. When the OIS-y magnet 520 and the OIS-y coil 510 move the OIS-y carrier 220, the AF carrier 300 also moves together with the OIS-y carrier 220, and the distance between the AF magnet 620 and the AF coil 610 may be changed. When the OIS-y magnet 520 and the OIS-y coil 510 move the OIS-y carrier 220, the AF carrier 300 also moves together with the OIS-y carrier 220, and the distance between the AF magnet 620 and the AF coil 610 in the y-axis direction may be changed.

[0222] In the first embodiment of the present invention, even if the distance between the AF coil 610 and the AF magnet 620 changes, the AF function can be performed without problems by the controller applying current to the AF coil 610. For example, the controller may have a preset AF driving current depending on the distance between the AF coil 610 and the AF magnet 620, so that the AF driving current can be controlled differently according to the distance between the AF coil 610 and the AF magnet 620.

[0223] When the AF carrier 300 moves in the optical axis direction, the distance between the AF magnet 620 and the AF coil 610 may be maintained. When the AF carrier 300 moves in the x-axis direction, the distance between the AF magnet 620 and the AF coil 610 may be maintained. When the AF carrier 300 moves in the y-axis direction, the distance between the AF magnet 620 and the AF coil 610 may be changed.

[0224] When the AF carrier 300 is moved by the AF magnet 620 and the AF coil 610, the distance between the AF magnet 620 and the AF coil 610 in the y-axis direction may be kept constant. When the OIS-x magnet 420 and the OIS-x coil 410 move the OIS carrier 200 and the AF carrier 300 together, the distance between the AF magnet 620 and the AF coil 610 in the y-axis direction may be kept constant.

[0225] The lens driving device 10 may include an AF magnet 620. The AF driving portion may include the AF magnet 620. The AF magnet 620 may be disposed on the AF carrier 300. The AF magnet 620 may be disposed on an outer surface of the AF carrier 300. The AF magnet 620 may be fixed to the AF carrier 300. The AF magnet 620 may be coupled to the AF carrier 300. The AF magnet 620 may be bonded to the AF carrier 300 with an adhesive. The AF magnet 620 may be disposed within the cover 150. The AF magnet 620 may interact with the AF coil 610. The AF magnet 620 may electromagnetically interact with the AF coil 610. The AF magnet 620 may be disposed in a position corresponding to the AF coil 610. The AF magnet 620 may face the AF coil 610. The AF magnet 620 may be opposite to the AF coil 610. The AF magnet 620 may overlap with the AF coil 610 in a direction perpendicular to the optical axis.

[0226] The AF magnet 620 may be a quadrupole magnet. The AF magnet 620 may include a quadrupole magnetized magnet. The AF magnet 620 may include a first magnet portion including an N pole and an S pole and a second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a vertical direction. The first magnet portion and the second magnet portion are spaced apart in the vertical direction, and a neutral zone may be provided between the first magnet portion and the second magnet portion.

[0227] In a modified example, the AF magnet 620 may include a shape to minimize magnetic field interference with adjacent magnets. The AF magnet 620 may include an outer surface facing the AF coil 610, an inner surface on the opposite side of the outer surface, an upper surface and a lower surface, two side surfaces, and a chamfered surface 625 connecting the inner surface and the two side surfaces. In this case, magnetic field interference with a magnet disposed adjacent to the chamfered surface 625 can be minimized. The chamfered surface 625 can be an inclined surface. In a modified example, the chamfered surface 625 can be formed only on one side of the AF magnet 620. The chamfered surface 625 can connect the inner surface to one side of the AF magnet 620.

[0228] Another variation example may include a yoke disposed on the AF magnet 620. The AF magnet 620 may include an outer surface facing the AF coil 610, an inner surface on the opposite side of the outer surface, an upper surface, a lower surface, and two side surfaces. In this case, the yoke may be disposed on both sides of the AF magnet 620. In this case, the magnetic field interference between the AF magnet 620 and a magnet disposed adjacent to the AF magnet 620 may be minimized by the yoke. As a variation example, the yoke may be disposed only on one side of the AF magnet 620. The yoke may be formed to a size corresponding to one side of the AF magnet 620. The yoke may be fixed to one side of the AF magnet 620 with an adhesive.

[0229] The lens driving device 10 may include an AF sensor 630. The AF driving portion may include the AF sensor 630. The AF sensor 630 may be a Hall sensor. The AF sensor 630 may be disposed on the AF substrate 140. The AF sensor 630 may be disposed on the inner side of the AF substrate 140. The AF sensor 630 may detect the AF magnet 620. The AF sensor 630 may detect the movement of the AF magnet 620. The amount or position of the movement of the AF magnet 620 detected by the AF sensor 630 may be used for feedback in the auto focus operation.

[0230] The AF sensor 630 may be a driver IC. The driver IC may include a sensing portion. The sensing portion may include a Hall IC. The driver IC may be electrically connected to the AF coil 610. The driver IC may supply current to the AF coil 610.

[0231] The AF sensor 630 may be disposed inside the AF coil 610. The AF sensor 630 may overlap with the neutral zone of the AF magnet 620 in a direction perpendicular to the optical axis. In a modified example, the AF sensor 630 may be disposed outside the AF coil 610.

[0232] The lens driving device 10 may include an AF yoke 640. The AF yoke 640 may be disposed on the AF substrate 140. The AF yoke 640 may be disposed on the outer surface of the AF substrate 140. An attractive force may act between the AF magnet 620 and the AF yoke 640. The AF magnet 620 may be pressed in a direction facing the AF yoke 640. The AF carrier 300 may be pressed in a direction facing the first side plate of the housing 120. At this time, the AF yoke 640 may be disposed in a position corresponding to the first side plate of the housing 120. The AF carrier 300 may be pressed in a direction facing the first side plate of the housing 120 using the AF guide ball 730 located between the first side plate of the housing 120 and the AF carrier 300. This allows the AF guide ball 730 to maintain contact with the AF carrier 300 and the first side plate of the housing 120.

[0233] The lens driving device 10 may include a guide member. The guide member may include a spherical member. The guide member may include a pin. The guide member may include a cylindrical member. The guide member may guide the movement of the movable part relative to the fixed part 100 in a specific direction.

[0234] The lens driving device 10 may include an OIS-x guide sphere 710. The OIS-x guide sphere 710 may guide the movement of the OIS-x carrier 210 relative to the housing 120 in the x-axis direction. The OIS-x guide sphere 710 may be disposed between the housing 120 and the OIS-x carrier 210. The OIS-x guide sphere 710 may be in contact with the housing 120 and the OIS-x carrier 210. The OIS-x guide sphere 710 may be disposed between the groove 123 of the lower plate 122 of the housing 120 and the groove 211 of the lower surface of the OIS-x carrier 210. The OIS-x guide sphere 710 may be in contact with the groove 123 of the lower plate 122 of the housing 120 and the groove 211 of the lower surface of the OIS-x carrier 210. The OIS-x guide sphere 710 may include a first sphere contacting the OIS-x bearing 210 and the housing 120 at four points and a second sphere contacting the OIS-x bearing 210 and the housing 120 at three points. The OIS-x guide sphere 710 may be spherical. The OIS-x guide sphere 710 may be formed of metal. Grease may be applied to the surface of the OIS-x guide sphere 710.

[0235] The OIS-x guide ball 710 may include a plurality of balls. The OIS-x guide ball 710 may include four balls. The OIS-x guide ball 710 may include four balls spaced apart from each other.

[0236] The lens driving device 10 may include an OIS-y guide sphere 720. The OIS-y guide sphere 720 may guide the movement of the OIS-x carrier 210 relative to the OIS-y carrier 220 in the y-axis direction. The OIS-y guide sphere 720 may be disposed between the OIS-x carrier 210 and the OIS-y carrier 220. The OIS-y guide sphere 720 may contact the OIS-x carrier 210 and the OIS-y carrier 220. The OIS-y guide sphere 720 may be disposed between the groove 212 on the upper surface of the OIS-x carrier 210 and the groove 222 on the lower surface of the OIS-y carrier 220. The OIS-y guide sphere 720 may contact the groove 212 on the upper surface of the OIS-x carrier 210 and the groove 222 on the lower surface of the OIS-y carrier 220. The OIS-y guide sphere 720 may include a first sphere contacting the OIS-x bearing 210 and the OIS-y bearing 220 at four points and a second sphere contacting the OIS-x bearing 210 and the OIS-y bearing 220 at three points. The OIS-y guide sphere 720 may be spherical. The OIS-y guide sphere 720 may be formed of metal. Grease may be applied to the surface of the OIS-y guide sphere 720.

[0237] The OIS-y guide ball 720 may include a plurality of balls. The OIS-y guide ball 720 may include four balls. The OIS-y guide ball 720 may include four balls spaced apart from each other.

[0238] As a modified example, the OIS guide sphere may include a common sphere that guides in both the x-axis direction and the y-axis direction. The common sphere may be disposed between the OIS-y carrier 220 and the housing 120. In this case, one of the four OIS-y guide spheres 720 may be replaced by one common sphere.

[0239] The lens driving device 10 may include an AF guide spherical member 730. The AF guide spherical member 730 may guide the movement of the OIS-y carrier 220 of the AF carrier 300 in the optical axis direction. The AF guide spherical member 730 may be disposed between the OIS-y carrier 220 and the AF carrier 300. The AF guide spherical member 730 may be disposed between the OIS-y carrier 220 and the AF carrier 300 in a direction perpendicular to the optical axis. The AF guide spherical member 730 may be disposed in a groove 221 of the OIS-y carrier 220. The AF guide spherical member 730 may be disposed in a groove 310 of the AF carrier 300. The AF guide spherical member 730 may include a first spherical member contacting the OIS-y carrier 220 and the AF carrier 300 at four points and a second spherical member contacting the OIS-y carrier 220 and the AF carrier 300 at three points. The AF guide ball 730 may be spherical. The AF guide ball 730 may be formed of metal. Grease may be applied to the surface of the AF guide ball 730.

[0240] The AF guide sphere 730 may include a plurality of spheres. The AF guide sphere 730 may include six spheres. Three AF ​​guide spheres 730 may be disposed on one side of the AF magnet 620, and the remaining three AF ​​guide spheres 730 may be disposed on the other side of the AF magnet 620.

[0241] The following describes an auto focus (AF) driving (operation) of the lens driving device according to the first embodiment of the present invention with reference to the drawings.

[0242] Figure 26 to Figure 28 FIG. 1 is a diagram for explaining the autofocus operation of the lens driving device according to the first embodiment of the present invention. Fig.26 is a cross-sectional view showing the state of the movable portion in an initial state when no current is applied to the AF coil. Fig. 27 is a cross-sectional view showing a movable portion that moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.28 A cross-sectional view showing a movable portion that moves to the lower side of the optical axis when a reverse current is applied to the AF coil.

[0243] The movable portion may be disposed at a position separated from both the upper plate 151 of the cover 150 and the base 110 in an initial position where no current is applied to the AF coil 610. In this case, the movable portion may be an AF movable portion. The movable portion may include the AF carrier 300.

[0244] When a forward current is applied to the AF coil 610, the AF magnet 620 may move upward along the optical axis due to electromagnetic interaction between the AF coil 610 and the AF magnet 620 (see Fig. 27 A in FIG. 1 ). At this time, the AF carrier 300 can move upward in the optical axis direction together with the AF magnet 620. In addition, the lens can move upward in the optical axis direction together with the AF carrier 300. Therefore, the distance between the lens and the image sensor is changed, and the focus of the image projected onto the image sensor through the lens can be adjusted.

[0245] When a reverse current is applied to the AF coil 610, the AF magnet 620 may move downward along the optical axis due to the electromagnetic interaction between the AF coil 610 and the AF magnet 620 (see Fig.28 B). At this time, the AF carrier 300 can move downward along the optical axis direction together with the AF magnet 620. In addition, the lens can move downward along the optical axis direction together with the AF carrier 300. Therefore, the distance between the lens and the image sensor is changed, and the focus of the image projected onto the image sensor through the lens can be adjusted.

[0246] Meanwhile, during the movement of the AF magnet 620, the AF sensor 630 can detect the strength of the magnetic field of the AF magnet 620 and detect the amount or position of movement of the lens in the optical axis direction. The amount or position of movement of the lens in the optical axis direction detected by the AF sensor 630 can be used for auto focus feedback control.

[0247] The following describes an optical image stabilization (OIS) operation of the lens driving device according to the first embodiment of the present invention with reference to the accompanying drawings.

[0248] Figure 29 to Figure 32 FIG. 1 is a diagram for explaining the image stabilization drive of the lens driving device according to the first embodiment of the present invention. Fig.29 and Fig.31 is a cross-sectional view showing the state of the movable portion in an initial state when no current is applied to the OIS-x coil and the OIS-y coil. Fig.30 is a cross-sectional view showing that the OIS-x coil is energized and the OIS-x carrier and the OIS-y carrier move in the x-axis direction perpendicular to the optical axis. Fig.32 is a cross-sectional view showing the movement of the OIS-y carrier in the y-axis direction perpendicular to both the optical axis and the x-axis when current is applied to the OIS-y coil.

[0249] like Fig.29 and Fig.31As shown in , the movable part can be set in an initial position in which no current is applied to the OIS-x coil 410 and the OIS-y coil 510. In this case, the movable part can be an OIS movable part. In addition, the movable part may include an OIS movable part and an AF movable part. The movable part may include an OIS-x carrier 210, an OIS-y carrier 220, and an AF carrier 300.

[0250] When current is applied to the OIS-x coil 410, the OIS-x magnet 420 may move in the x-axis direction perpendicular to the optical axis due to electromagnetic interaction between the OIS-x coil 410 and the OIS-x magnet 420 (see Fig.30 A in the figure). At this time, the OIS-x carrier 210 can move along the x-axis direction together with the OIS-x magnet 420. In addition, the OIS-y carrier 220, the AF carrier 300 and the lens can move along the x-axis direction together with the OIS-x carrier 210. When a forward current is applied to the OIS-x coil 410, the OIS-x magnet 420, the OIS-x carrier 210, the OIS-y carrier 220, the AF carrier 300 and the lens can move along one direction on the x-axis. In addition, when a reverse current is applied to the OIS-x coil 410, the OIS-x magnet 420, the OIS-x carrier 210, the OIS-y carrier 220, the AF carrier 300 and the lens can move along the other direction on the x-axis.

[0251] When current is applied to the OIS-y coil 510, the OIS-y magnet 520 may move in the y-axis direction perpendicular to the optical axis due to electromagnetic interaction between the OIS-y coil 510 and the OIS-y magnet 520 (see Fig.32 A in FIG. 1 ). At this time, the OIS-y carrier 220 can move along the y-axis direction together with the OIS-y magnet 520. In addition, the AF carrier 300 and the lens can move along the y-axis direction together with the OIS-y carrier 220. When a forward current is applied to the OIS-y coil 510, the OIS-y magnet 520, the OIS-y carrier 220, the AF carrier 300 and the lens can move in one direction on the y-axis. In addition, when a reverse current is applied to the OIS-y coil 510, the OIS-y magnet 520, the OIS-y carrier 220, the AF carrier 300 and the lens can move in another direction on the y-axis.

[0252] Meanwhile, the OIS-x sensor 430 may detect the amount or position of movement of the OIS-x magnet 420 by detecting the strength of the magnetic field of the OIS-x magnet 420. The amount or position of movement detected by the OIS-x sensor 430 may be used for x-axis oriented image stabilization feedback control. The OIS-y sensor 530 may detect the amount or position of movement of the OIS-y magnet 520 by detecting the strength of the magnetic field of the OIS-y magnet 520. The amount or position of movement detected by the OIS-y sensor 530 may be used for y-axis image stabilization feedback control.

[0253] A camera device according to a first embodiment of the present invention will be described below with reference to the drawings.

[0254] Fig.33 is an exploded perspective view of a camera device according to a first embodiment of the present invention.

[0255] The camera device 10A may include a camera module.

[0256] The camera device 10A may include a lens module 20. The lens module 20 may include at least one lens. The lens may be disposed in a position corresponding to the image sensor 60. The lens module 20 may include a lens and a lens barrel. The lens module 20 may be coupled to a holder 210 of the lens driving device 10. The lens module 20 may be threaded and / or coupled to the holder 210. The lens module 20 may move integrally with the holder 210.

[0257] The camera device 10A may include an optical filter 30. The optical filter 30 may be used to block light of a specific frequency band in the light passing through the lens module 20 from being incident on the image sensor 60. The optical filter 30 may be arranged parallel to the xy plane. The optical filter 30 may be arranged between the lens module 20 and the image sensor 60. The optical filter 30 may be arranged in the sensor base 40. In a modified example, the optical filter 30 may be arranged on the base 110. The optical filter 30 may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor 60.

[0258] The camera device 10A may include a sensor base 40. The sensor base 40 may be disposed between the lens drive device 10 and the printed circuit board 50. The sensor base 40 may include a protrusion 41 in which the filter 30 is disposed. An opening may be formed in a portion of the sensor base 40 where the filter 30 is positioned so that light passing through the filter 30 may be incident on the image sensor 60. An adhesive member may bond or adhere the base 310 of the lens drive device 10 to the sensor base 40. The adhesive member may also be used to prevent foreign matter from entering the interior of the lens drive device 10. The adhesive member may include one or more of an epoxy resin, a thermosetting adhesive, and an ultraviolet curing adhesive.

[0259] The camera device 10A may include a printed circuit board (PCB) 50. The printed circuit board 50 may be a substrate or a circuit board. The lens driving device 10 may be disposed on the printed circuit board 50. The sensor base 40 may be disposed between the printed circuit board 50 and the lens driving device 10. The printed circuit board 50 may be electrically connected to the lens driving device 10. The image sensor 60 may be disposed on the printed circuit board 50. The printed circuit board 50 may be equipped with various circuits, elements, and controllers to convert an image captured by the image sensor 60 into an electrical signal and transmit the electrical signal to an external device.

[0260] The camera device 10A may include an image sensor 60. The image sensor 60 may be configured so that an image is formed by the incidence of light passing through the lens and the filter 30. The image sensor 60 may be mounted on a printed circuit board 50. The image sensor 60 may be electrically connected to the printed circuit board 50. For example, the image sensor 60 may be bonded 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 arranged so that the lens and the optical axis are aligned. In other words, the optical axis of the image sensor 60 and the optical axis of the lens may be aligned. The image sensor 60 may convert the light irradiated on the effective image area of ​​the image sensor 60 into an electrical signal. The image sensor 60 may be any one of a CCD (charge coupled device), a MOS (metal oxide semiconductor), a CPD, and a CID.

[0261] The camera device 10A may include a motion sensor 70. The motion sensor 70 may be mounted on the printed circuit board 50. The motion sensor 70 may be electrically connected to the controller 80 through a circuit pattern provided on the printed circuit board 50. The motion sensor 70 may output angular velocity information of rotation caused by the motion of the camera device 10A. The motion sensor 70 may include a dual-axis or tri-axis gyro sensor or an angular velocity sensor.

[0262] The camera device 10A may include a controller 80. The controller 80 may be disposed on the printed circuit board 50. The controller 80 may be electrically connected to the coil 330 of the lens driving device 10. The controller 80 may individually control the direction, intensity, and amplitude of the current supplied to the coil 330. The controller 80 may control the lens driving device 10 to perform an autofocus function and / or an image stabilization (shake compensation) function. In addition, the controller 80 may perform autofocus feedback control and / or image stabilization feedback control for the lens driving device 10.

[0263] 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.

[0264] An optical device according to a first embodiment of the present invention will be described below with reference to the drawings.

[0265] Fig.34 is a perspective view of an optical device according to a first embodiment of the present invention, and Fig.35 is a perspective view of an optical device according to a modified example.

[0266] The optical device 1 may include one or more of a mobile phone, a cellular phone, a portable terminal, a mobile terminal, a smart phone, a smart tablet, a portable smart device, a digital camera, a laptop computer, a digital broadcast terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), and a navigation device. The optical device 1 may include any device for taking photos or videos.

[0267] The optical device 1 may include a main body 20. The optical device 1 may include a camera device 10A. The camera device 10A may be disposed in the main body 20. The camera device 10A may photograph a subject. The optical device 1 may include a display. The display may be disposed in the main body 20. The display may output one or more of an image and a video captured by the camera device 10A. The display may be disposed on a first surface of the main body 20. The camera device 10A may be disposed on one or more of the first surface of the main body 20 and a second surface opposite to the first surface. Fig.34 As shown in FIG. 1 , the camera device 10A may be arranged in a vertical direction to have three cameras. Fig.35 As shown in , the camera device 10A-1 may have three cameras arranged in a horizontal direction.

[0268] 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.

[0269] Fig.36 is a perspective view of a lens driving device according to a second embodiment of the present invention, Fig.37 is from Fig.36 The cross-sectional view of aa observation, Fig.38 is from Fig.36 The cross-sectional view of bb observation, Fig.39 is from Fig.36 The cross-sectional view of cc observation, Fig.40 is from Fig.36 Cross-sectional diagram of dd observation, Fig.41 is from Fig.36 The cross-sectional diagram of ee observation, Fig.42is a cross-sectional perspective view of a lens driving device according to a second embodiment of the present invention, taken in a direction perpendicular to the optical axis, Fig.43a is an exploded perspective view of a lens driving device according to a second embodiment of the present invention, Figure 43b is an exploded perspective view of a lens driving device according to a first modified example, Fig.43c is an exploded perspective view of a lens driving device according to a second modified example, Figure 43d is an exploded perspective view of a lens driving device according to a third modified example, Fig.44 It is from Fig.43a An exploded perspective view of a lens driving device according to a second embodiment of the present invention viewed from different directions, Fig.45 is a perspective view of a lens driving unit according to a second embodiment of the present invention with a cover removed, Fig.46 It is from Fig.45 A perspective view of the lens driving device according to the second embodiment of the present invention with the cover removed, viewed from different directions, Fig.47 is a perspective view showing a fixing portion and related configuration of a lens driving device according to a second embodiment of the present invention, Fig.48 is a perspective view showing an OIS-x movable portion and related configurations of a lens driving device according to a second embodiment of the present invention, Fig.49 is a bottom perspective view of an OIS-x movable portion and related configuration of a lens driving device according to a second embodiment of the present invention, Fig.50 is a perspective view showing an OIS-y movable portion and related configurations of a lens driving device according to a second embodiment of the present invention, Fig.51 is a bottom perspective view showing an OIS-y movable portion and related configurations of a lens driving device according to a second embodiment of the present invention, Fig.52 is a perspective view showing an AF movable portion and related configuration of a lens driving device according to a second embodiment of the present invention, Fig.53 is a bottom view of the lens driving device of the second embodiment of the present invention with the base and the cover removed, Fig.54 is a perspective view showing a driving portion and a guide member and related configurations of a lens driving device according to a second embodiment of the present invention together with a base, Fig.55 is a partial perspective plan view showing the arrangement of an AF magnet and an AF attraction yoke of a lens driving device according to a second embodiment of the present invention, and Fig.56 1 is a front view showing the arrangement of an AF magnet and an AF attraction yoke of a lens driving device according to a second embodiment of the present invention.

[0270] The lens driving device 1010 may be a voice coil motor (VCM). The lens driving device 1010 may be a lens driving motor. The lens driving device 1010 may be a lens driving actuator. The lens driving device 1010 may include an AF module. The lens driving device 1010 may include an OIS module.

[0271] The lens driving device 1010 may include a fixed part 1100. The fixed part 1100 may be a relatively fixed part when the movable part moves. The movable part may move relative to the fixed part. The fixed part 1100 may be disposed outside the movable part. The fixed part 1100 may accommodate the movable part inside.

[0272] The lens driving device 1010 may include a base 1110. The fixing portion 1100 may include the base 1110. The base 1110 may be disposed below the AF carrier 1210. The base 1110 may be disposed below the OIS-x carrier 1310. The base 1110 may be disposed below the OIS-y carrier 1410. The base 1110 may be coupled to the cover 1120. The AF carrier 1210, the OIS-x carrier 1310, and the OIS-y carrier 1410 may be disposed on the base 1110. The AF carrier 1210, the OIS-x carrier 1310, and the OIS-y carrier 1410 may be disposed on the lower plate 1112 of the base 1110. The AF carrier 1210, the OIS-x carrier 1310, and the OIS-y carrier 1410 may be disposed within the base 1110. The AF carrier 1210 , the OIS-x carrier 1310 , and the OIS-y carrier 1410 may be disposed within the side plate 1113 of the base 1110 .

[0273] The base 1110 may include a groove 1111. The groove 1111 may be an "OIS-x guide ball receiving groove". The groove 1111 may be formed concavely to the base 1110. The groove 1111 may be formed by concavely concavely on one side of the base 1110. The groove 1111 may be formed in a lower plate 1112 of the base 1110. The groove 1111 may be formed on an upper surface of the base 1110. The OIS-x guide ball 1820 may be disposed in the groove 1111. The groove 1111 may be in direct contact with the OIS-x guide ball 1820. The groove 1111 may be disposed along an x-axis direction perpendicular to the optical axis. The groove 1111 may include a plurality of grooves. The groove 1111 may include four grooves. The four grooves may be arranged parallel to each other. The groove 1111 may include a first groove contacting the OIS-x guide ball 1820 at two points and a second groove contacting the OIS-x guide ball 1820 at one point. In a modified example, both the first groove and the second groove may contact the OIS-x guide ball 1820 at two points.

[0274] The base 1110 may include a lower plate 1112. The base 1110 may include a side plate 1113. The side plate 1113 of the base 1110 may be a "side portion". The side plate 1113 of the base 1110 may extend from the upper surface of the lower plate 1112. The side plate 1113 of the base 1110 may include a plurality of side plates. The side plate 1113 of the base 1110 may include four side plates. The base 1110 may include a first side portion and a second side portion arranged on opposite sides of each other and a third side portion and a fourth side portion arranged on opposite sides of each other. The AF coil 1520 may be disposed on one side of the first side portion of the base 1110. The OIS-x coil 1620 may be disposed on one side of the second side portion of the base 1110. The OIS-y coil 1720 may be disposed on one side of the third side portion of the base 1110.

[0275] The base 1110 may include a groove. The groove may be a "yoke receiving groove". The groove may be formed in the lower plate 1112 of the base 1110. The groove may be formed on the upper surface of the lower plate 1112 of the base 1110. The groove may be provided with an OIS-x attraction yoke 1920 and an OIS-y attraction yoke 1930.

[0276] The lens driving device 1010 may include a cover 1120. The fixing portion 1100 may include the cover 1120. The cover 1120 may be disposed at the base 1110. The cover 1120 may be disposed on the base 1110. The cover 1120 may be coupled to the base 1110. The cover 1120 may be fixed to the base 1110. The cover 1120 may be bonded to the base 1110 with an adhesive. The cover 1120 may house an AF carrier 1210 inside. The cover 1120 may house an OIS-x carrier 1310 inside. The cover 1120 may house an OIS-y carrier 1410 inside. The cover 1120 may be a shielding member. The cover 1120 may be a shielding cover.

[0277] The cover 1120 may include an upper plate 1121. The upper plate 1121 may be disposed on the movable portion. The upper side movement of the movable portion may be restricted by the movable portion contacting the upper plate 1121. The upper plate 1121 may include a hole through which light passes.

[0278] The cover 1120 may include a side panel 1122. The side panel 1122 may extend from the upper panel 1121. The side panel 1122 may be disposed on the base 1110. The side panel 1122 may be disposed in a stepped portion protruding at a lower portion of an outer side portion of the base 1110. The side panel 1122 may include a plurality of side panels. The side panel 1122 may include four side panels. The side panel 1122 may include a first side panel and a second side panel disposed on opposite sides of each other and a third side panel and a fourth side panel disposed on opposite sides of each other.

[0279] The AF magnet 1510 may be disposed between the AF carrier 1210 and a first side plate of the cover 1120. The OIS-x magnet 1610 may be disposed between the AF carrier 1210 and a second side plate of the cover 1120. The OIS-y magnet 1710 may be disposed between the third side plate of the cover 1120 and the AF carrier 1210.

[0280] The lens driving device 1010 may include a side substrate 1130. The fixing portion 1100 may include the side substrate 1130. The side substrate 1130 may be disposed on the base 1110. The side substrate 1130 may be disposed on the side plate 1113 of the base 1110. The side substrate 1130 may be disposed on the outer side of the side plate 1122 of the cover 1120. The side substrate 1130 may be disposed parallel to the optical axis. The side substrate 1130 may be a circuit board. The side substrate 1130 may be a printed circuit board. The side substrate 1130 may include a flexible printed circuit board (FPCB). The side substrate 1130 may be flexible. The side substrate 1130 may be bent. The AF coil 1520 may be disposed on the side substrate 1130. The AF coil 1520 may be disposed on the inner surface of the side substrate 1130. The AF sensor 1530 may be disposed on the side substrate 1130. The AF sensor 1530 may be disposed on the inner surface of the side substrate 1130. The capacitor 1540 may be disposed on the side substrate 1130. The capacitor 1540 may be disposed on an inner surface of the side substrate 1130.

[0281] The side substrate 1130 may include a body portion. The AF coil 1520 may be disposed in the body portion. The side substrate 1130 may include a terminal 1131. The terminal 1131 may be disposed on a terminal portion extending downward from the body portion. The terminal 1131 may be formed at a lower end portion of the side substrate 1130. The terminal 1131 may protrude below the base 1110.

[0282] The terminal 1131 may include a plurality of terminals. The terminal 1131 of the side substrate 1130 may be electrically connected to the AF coil 1520. The terminal 1131 of the side substrate 1130 may be electrically connected to the AF sensor 1530. The terminal 1131 may be coupled to the printed circuit board 1050. The terminal 1131 may be coupled to the printed circuit board 1050 via solder. The terminal 1131 may be connected to the printed circuit board 1050 through a conductive member.

[0283] The lens driving device 1010 may include a lower substrate 1140. The fixing portion 1100 may include a lower substrate 1140. The lower substrate 1140 may be disposed on the base 1110. The lower substrate 1140 may be disposed on a lower plate 1112 of the base 1110. The lower substrate 1140 may be disposed on an upper surface of the lower plate 1112 of the base 1110. The lower substrate 1140 may be disposed perpendicular to the optical axis. The lower substrate 1140 may be a circuit board. The lower substrate 1140 may be a printed circuit board. The lower substrate 1140 may include a flexible printed circuit board (FPCB). The lower substrate 1140 may be flexible. The lower substrate 1140 may be bent. The OIS-x coil 1620 may be disposed on the lower substrate 1140. The OIS-x coil 1620 may be disposed on an upper surface of the lower substrate 1140. The OIS-y coil 1720 may be disposed on the lower substrate 1140. The OIS-y coil 1720 may be disposed on an upper surface of the lower substrate 1140. The OIS-y sensor 1730 may be disposed on the lower substrate 1140. The OIS-y sensor 1730 may be positioned on an upper surface of the lower substrate 1140.

[0284] The lower substrate 1140 may include a body portion. The body portion may be provided with an OIS-x coil 1620 and an OIS-y coil 1720. The lower substrate 1140 may include a terminal 1141. The terminal 1141 may be provided in a terminal portion that is bent downward and extends from the body portion. The terminal 1141 may be formed at the lower end portion of the lower substrate 1140. The terminal 1141 may protrude below the base 1110.

[0285] The terminal 1141 may include a plurality of terminals. The terminal 1141 of the lower substrate 1140 may include a first terminal electrically connected to the OIS-x coil 1620. The terminal 1141 of the lower substrate 1140 may include a second terminal electrically connected to the OIS-x sensor 1630. The terminal 1141 of the lower substrate 1140 may include a third terminal electrically connected to the OIS-y coil 1720. The terminal 1141 of the lower substrate 1140 may include a fourth terminal electrically connected to the OIS-y sensor 1730. The terminal 1141 may be coupled to the printed circuit board 1050. The terminal 1141 may be coupled to the printed circuit board 1050 via solder. The terminal 1141 may be coupled to the printed circuit board 1050 via a conductive member.

[0286] The lens driving device 1010 may include a movable part. The movable part may be arranged in the fixed part 1100. The movable part may be arranged in the fixed part 1100. The movable part may be arranged on the fixed part 1100. The movable part may be arranged in the fixed part 1100 in a movably manner. The movable part may be moved relative to the fixed part 1100 by the driving part. When AF is driven, the movable part may move. When OIS is driven, the movable part may move. The lens may be connected to the movable part.

[0287] The lens driving device 1010 may include an AF movable portion 1200. The AF movable portion 1200 may be provided on the fixed portion 1100. The AF movable portion 1200 may be provided in the fixed portion 1100. The AF movable portion 1200 may be provided on the fixed portion 1100. The AF movable portion 1200 may be provided in the OIS-x movable portion 1300. The AF movable portion 1200 may be provided on the OIS-x movable portion 1300. The AF movable portion 1200 may be provided in the OIS-y movable portion 1400. The AF movable portion 1200 may be provided in a movably manner. The AF movable portion 1200 may be movable. The AF movable portion 1200 may be movable along the optical axis direction. The AF movable portion 1200 may be moved in the optical axis direction relative to the fixed portion 1100, the OIS-x movable portion 1300, and the OIS-y movable portion 1400 by the AF driving portion 1500. When the AF is driven, the AF movable portion 1200 may be moved.

[0288] When current is applied to the OIS-y coil 1720, the AF movable portion 1200 may move together with the OIS-y movable portion 1400. When current is applied to the OIS-x coil 1620, the AF movable portion 1200 and the OIS-y movable portion 1400 may move together with the OIS-x movable portion 1300.

[0289] The lens driving device 1010 may include an AF carrier 1210. The AF movable part 1200 may include an AF carrier 1210. The AF carrier 1210 may be a "coil frame". The AF carrier 1210 may be an "AF holder". The AF carrier 1210 may be disposed in the base 1110. The AF carrier 1210 may be disposed on the base 1110. The AF carrier 1210 may be disposed in the OIS-x carrier 1310. The AF carrier 1210 may be disposed on the OIS-x carrier 1310. The AF carrier 1210 may be disposed in the OIS-y carrier 1410. The AF carrier 1210 may be disposed on the OIS-y carrier 1410. The AF carrier 1210 may be disposed in the cover 1120. The AF carrier 1210 may be disposed in a movably manner along the optical axis direction. The AF carrier 1210 may move. The AF carrier 1210 is movable along the optical axis direction.

[0290] The AF carrier 1210 may include a groove 1211. The groove 1211 may be an "AF guide ball receiving groove". The AF guide ball 1810 may be disposed in the groove 1211. The groove 1211 may be in direct contact with the AF guide ball 1810. The groove 1211 may include a plurality of grooves. The groove 1211 may include four grooves. The number of grooves 1211 may be the same as the number of AF guide balls 1810. One AF guide ball 1810 may be placed in each of the plurality of grooves. The groove 1211 may include a first groove in which the AF guide ball 1810 contacts at two points and a second groove in which the AF guide ball 1810 contacts at one point. In a variant example, both the first groove and the second groove may contact the AF guide ball 1810 at two points.

[0291] The AF carrier 1210 may include a groove 1212. The groove 1212 may be an “AF magnet receiving groove.” The groove 1212 may be formed on an outer surface of the AF carrier 1210. The AF magnet 1510 may be disposed in the groove 1212. The groove 1212 may be formed in a shape corresponding to the AF magnet 1510.

[0292] The lens driving device 1010 may include an OIS-x movable portion 1300. The OIS-x movable portion 1300 may be disposed in the fixed portion 1100. The OIS-x movable portion 1300 may be disposed within the fixed portion 1100. The OIS-x movable portion 1300 may be disposed on the fixed portion 1100. The OIS-x movable portion 1300 may be disposed below the OIS-y movable portion 1400. The OIS-x movable portion 1300 may be disposed between the fixed portion 1100 and the AF movable portion 1200. The OIS-x movable portion 1300 may be disposed between the fixed portion 1100 and the OIS-y movable portion 1400. The OIS-x movable portion 1300 may be disposed in a movably manner. The OIS-x movable portion 1300 may be moved along the x-axis direction relative to the fixed portion 1100 by the OIS-x driving portion 1600. When the OIS is driven, the OIS-x movable portion 1300 may move. When the OIS-x movable portion 1300 moves in the x-axis direction, the OIS-y movable portion 1400 and the AF movable portion 1200 may also move together.

[0293] The lens driving device 1010 may include an OIS-x carrier 1310. The OIS-x movable part 1300 may include an OIS-x carrier 1310. The OIS-x carrier 1310 may be an "OIS-x holder". The OIS-x carrier 1310 may be disposed in the base 1110. The OIS-x carrier 1310 may be disposed on the base 1110. The OIS-x carrier 1310 may be disposed below the OIS-y carrier 1410. The OIS-x carrier 1310 may be disposed in the cover 1120. The OIS-x carrier 1310 may be disposed between the base 1110 and the OIS-y carrier 1410. The OIS-x carrier 1310 may be placed between the base 1110 and the OIS-y carrier 1410. The OIS-x carrier 1310 may be arranged so that it can move along the x-axis direction.

[0294] The OIS-x carrier 1310 may include a groove 1311. The groove 1311 may be an "OIS-y guide ball receiving groove". The groove 1311 may be provided on the upper surface of the OIS-x carrier 1310. The OIS-y guide ball 1830 may be seated in the groove 1311. The groove 1311 may be in direct contact with the OIS-y guide ball 1830. The groove 1311 may be provided along the y-axis direction. The groove 1311 may include a plurality of grooves. The groove 1311 may include four grooves. The groove 1311 may include a first groove contacting the OIS-y guide ball 1830 at two points and a second groove contacting the OIS-y guide ball 1830 at one point. As a modified example, both the first groove and the second groove may contact the AF guide ball 1810 at two points.

[0295] The OIS-x carrier 1310 may include a groove 1312. The groove 1312 may be an "OIS-x guide ball receiving groove". The groove 1312 may be provided in the OIS-x carrier 1310. The groove 1312 may be provided on the lower surface of the OIS-x carrier 1310. The OIS-x guide ball 1820 may be provided in the groove 1312. The groove 1312 may be in direct contact with the OIS-x guide ball 1820. The groove 1312 may be provided in the x-axis direction. The groove 1312 may include a plurality of grooves. The groove 1312 may include four grooves. The groove 1312 may include a first groove contacting the OIS-x guide ball 1820 at two points and a second groove contacting the OIS-x guide ball 1820 at one point. In a modified example, both the first groove and the second groove may be in contact with the OIS-x guide ball 1820 at two points.

[0296] The OIS-x carrier 1310 may include a groove 1315. The groove 1315 may be an “OIS-x magnet receiving groove”. The groove 1315 may be formed on a side of the OIS-x carrier 1310. The OIS-x magnet 1610 may be seated in the groove 1315. The groove 1315 may include a shape corresponding to the OIS-x magnet 1610.

[0297] The OIS-x carrier 1310 may include a groove 1316. The groove 1316 may be an "attractive magnet avoidance groove". The groove 1316 may be concavely formed on the side of the OIS-x carrier 1310. The groove 1316 may be formed in a position corresponding to the protrusion 1415 of the OIS-y carrier 1410.

[0298] The lens driving device 1010 may include an OIS-y movable portion 1400. The OIS-y movable portion 1400 may be disposed in the fixed portion 1100. The OIS-y movable portion 1400 may be disposed within the fixed portion 1100. The OIS-y movable portion 1400 may be disposed on the fixed portion 1100. The OIS-y movable portion 1400 may be disposed on the OIS-x movable portion 1300. The OIS-y movable portion 1400 may be disposed on the OIS-x movable portion 1300. The OIS-y movable portion 1400 may be disposed between the fixed portion 1100 and the AF movable portion 1200. The OIS-y movable portion 1400 may be disposed between the fixed portion 1100 and the AF movable portion 1200 in a direction perpendicular to the optical axis. The OIS-y movable portion 1400 may be disposed between the fixed portion 1100 and the AF movable portion 1200 in the x-axis direction. The OIS-y movable portion 1400 may be movably disposed on the fixed portion 1100. The OIS-y movable portion 1400 may be moved in the y-axis direction relative to the fixed portion 1100 by the OIS-y driving portion 1700. The OIS-y movable portion 1400 may be moved in the y-axis direction relative to the OIS-x movable portion 1300 by the OIS-y driving portion 1700. When the OIS is driven, the OIS-y movable portion 1400 may move. When the OIS-y movable portion 1400 moves, the AF movable portion 1200 may move together.

[0299] The lens driving device 1010 may include an OIS-y carrier 1410. The OIS-y movable part 1400 may include an OIS-y carrier 1410. The OIS-y carrier 1410 may be an "OIS-y holder". The OIS-y carrier 1410 may be disposed on the base 1110. The OIS-y carrier 1410 may be disposed within the base 1110. The OIS-y carrier 1410 may be disposed on the base 1110. The OIS-y carrier 1410 may be disposed within the cover 1120. The OIS-y carrier 1410 may be disposed in the OIS-x carrier 1310. The OIS-y carrier 1410 may be disposed on the OIS-x carrier 1310. The OIS-y carrier 1410 may be disposed between the base 1110 and the AF carrier 1210. The OIS-y carrier 1410 may be disposed between the base 1110 and the AF carrier 1210 in a direction perpendicular to the optical axis. The OIS-y carrier 1410 may be disposed between the side plate 1113 of the base 1110 and the AF carrier 1210 in the x-axis direction. The OIS-y carrier 1410 may be disposed in a manner that allows it to move in the y-axis direction. The OIS-y carrier 1410 may be disposed between the base 1110 and the OIS-x carrier 1310.

[0300] The OIS-y carrier 1410 may include a groove 1411. The groove 1411 may be an "AF guide ball receiving groove". The groove 1411 may be formed in the OIS-y carrier 1410 in a concave manner. The groove 1411 may be disposed on an inner surface of the OIS-y carrier 1410. The AF guide ball 1810 may be disposed in the groove 1411. The groove 1411 may be in direct contact with the AF guide ball 1810. The groove 1411 may be disposed in the optical axis direction. The groove 1411 may include a plurality of grooves. The groove 1411 may include two grooves. The groove may include a first groove that contacts the AF guide ball 1810 at two points and a second groove that contacts the AF guide ball 1810 at one point. As a modified example, both the first groove and the second groove may contact the AF guide ball 1810 at two points.

[0301] The OIS-y carrier 1410 may include a groove 1412. The groove may be an "OIS-y guide ball receiving groove". The groove 1412 may be formed in the OIS-y carrier 1410 in a concave manner. The groove 1412 may be disposed on the lower surface of the OIS-y carrier 1410. The OIS-y guide ball 1830 may be disposed in the groove 1412. The groove 1412 may be in direct contact with the OIS-y guide ball 1830. The groove 1412 may be disposed in the y-axis direction. The groove 1412 may include a plurality of grooves. The groove 1412 may include four grooves. The four grooves may be arranged parallel to each other. The groove 1412 may include a first groove that contacts the OIS-y guide ball 1830 at two points and a second groove that contacts the OIS-y guide ball 1830 at one point. As a variation, both the first groove and the second groove may contact the OIS-y guide ball 1830 at two points.

[0302] The OIS-y carrier 1410 may include a groove 1413. The groove 1413 may be an “OIS-y magnet receiving groove”. The groove 1413 may be formed on an outer side of the OIS-y carrier 1410. The OIS-y magnet 1710 may be disposed on the groove 1413. The groove 1413 may include a shape corresponding to the OIS-y magnet 1710.

[0303] The OIS-y carrier 1410 may include a groove. The groove may be an "AF attraction yoke receiving groove". The groove may be formed on the outer surface of the OIS-y carrier 1410. The AF attraction yoke 1910 may be disposed on the groove. The groove may include a shape corresponding to the AF attraction yoke 1910. The groove may include a plurality of grooves. The groove may include two grooves. The groove may be formed to have a number of AF attraction yokes 1910 corresponding to the number of yokes.

[0304] The OIS-y carrier 1410 may include a protrusion 1415. The protrusion 1415 may protrude downward. The protrusion 1415 of the OIS-y carrier 1410 may overlap with the OIS-x carrier 1310 in a direction perpendicular to the optical axis. The attraction magnet 1955 may be disposed on the protrusion 1415 of the OIS-y carrier 1410.

[0305] The lens driving device 1010 may include a driving part. The driving part may move the movable part relative to the fixed part. The driving part may include an AF driving part 1500. The driving part may include OIS driving parts 1600, 1700. The driving part may include a coil and a magnet.

[0306] The lens driving device 1010 may include an AF driving part 1500. The AF movable part 1200 may be moved along the optical axis direction by the AF movable part 1500. The AF driving part 1500 may move the AF carrier 1210 along the optical axis direction. The AF driving part 1500 may move the AF carrier 1210 along the optical axis direction by electromagnetic force. The AF driving part 1500 may include a coil and a magnet. The AF driving part 1500 may include a coil and a magnet that interact with each other. The AF coil 1520 and the AF magnet 1510 may move the AF movable part 1200 along the optical axis direction.

[0307] When the OIS-x movable portion 1300, the OIS-y movable portion 1400, and the AF movable portion 1200 are moved by the OIS-x driving portion 1600, the distance between the facing surfaces of the AF coil 1520 and the AF magnet 1510 may vary. When the OIS-y movable portion 1400 and the AF movable portion 1200 are moved by the OIS-y driving portion 1700, the distance between the facing surfaces of the AF coil 1520 and the AF magnet 1510 does not change, and the AF magnet 1510 may be eccentric relative to the AF coil 1520.

[0308] The lens driving device 1010 may include an AF magnet 1510. The AF driving part 1500 may include the AF magnet 1510. The AF magnet 1510 may be disposed on the AF movable part 1200. The AF magnet 1510 may be disposed on the AF carrier 1210. The AF magnet 1510 may be disposed in a groove 1212 of the AF carrier 1210. The AF magnet 1510 may be disposed on the outside of the AF carrier 1210. The AF magnet 1510 may be fixed to the AF carrier 1210. The AF magnet 1510 may be coupled to the AF carrier 1210. The AF magnet 1510 may be bonded to the AF carrier 1210 with an adhesive. The AF magnet 1510 may be disposed within the cover 1120. The AF magnet 1510 may interact with the AF coil 1520. The AF magnet 1510 may electromagnetically interact with the AF coil 1520. The AF magnet 1510 may be disposed in a position corresponding to the AF coil 1520. The AF magnet 1510 faces the AF coil 1520. The AF magnet 1510 may be opposite to the AF coil 1520. The AF magnet 1510 may overlap with the AF coil 1520 in a direction perpendicular to the optical axis. The AF magnet 1510 may overlap with the AF coil 1520 in the x-axis direction. In the x-axis direction, the AF magnet 1510 may overlap with the OIS-x magnet 1610.

[0309] In order to have a greater attraction force than when the AF attraction yoke 1910 is applied, the AF magnet 1510 may be applied with a C-shaped cutout. A structure may be applied to the AF magnet 1510 to send a magnetic force in the direction of the AF magnet yoke 1910. The AF magnet 1510 may include a first surface facing the AF coil 1520 and a second surface opposite to the first surface. In the y-axis direction, the width of the first surface of the AF magnet 1510 (see Fig.55 W1 in FIG. 1 may be smaller than the width of the second surface of the AF magnet 1510 (see Fig.55 W2 in). The AF magnet 1510 may include a chamfered shape at the corners.

[0310] The AF magnet 1510 may be a two-pole magnet. The AF magnet 1510 may include an N pole and an S pole. The upper surface of the AF magnet 1510 may have an N pole, and the lower surface of the AF magnet 1510 may have an S pole.

[0311] As a variation example, the AF magnet 1510 may be a quadrupole magnet. The AF magnet 1510 may include a quadrupole magnetized magnet. The AF magnet 1510 may include a first magnet portion including an N pole and an S pole and a second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a vertical direction. The first magnet portion and the second magnet portion may be spaced apart in the vertical direction, and a neutral zone may be provided between the first magnet portion and the second magnet portion.

[0312] The lens driving device 1010 may include an AF coil 1520. The AF driving part 1500 may include an AF coil 1520. The AF coil 1520 may interact with the AF magnet 1510. The AF coil 1520 may move the AF magnet 1510 in the optical axis direction. The AF coil 1520 may move the AF magnet 1510 in the optical axis direction by interacting with the AF magnet 1510. The AF coil 1520 may be opposite to the AF magnet 1510. The AF coil 1520 faces the AF magnet 1510. The AF coil 1520 may be disposed in a position corresponding to the AF magnet 1510. The AF coil 1520 may overlap with the AF magnet 1510 in the x-axis direction. The AF coil 1520 may be disposed on the side substrate 1130. The AF coil 1520 may be disposed on the side substrate 1130 in a position corresponding to the AF magnet 1510. The AF coil 1520 may be disposed on the base 1110. The AF coil 1520 may be disposed on the side plate 1122 of the cover 1120. The AF coil 1520 may be disposed between the AF magnet 1510 and the cover 1120. The AF coil 1520 may be disposed in the fixing portion 1100. The AF coil 1520 may be disposed on the first side plate of the cover 1120. The AF coil 1520 may be disposed on the first side plate of the base 1110.

[0313] The lens driving device 1010 may include an AF sensor 1530. The AF driving part 1500 may include the AF sensor 1530. The AF sensor 1530 may be disposed on the side substrate 1130. The AF sensor 1530 may include a Hall IC. The AF sensor 1530 may have a Hall sensor. The AF sensor 1530 may detect the AF magnet 1510. The AF sensor 1530 may detect the magnetic force of the AF magnet 1510. The AF sensor 1530 may detect the movement of the AF magnet 1510. The amount or position of the movement of the AF magnet 1510 detected by the AF sensor 1530 may be used for feedback of auto focus (AF).

[0314] The AF sensor 1530 may be disposed within the AF coil 1520. The AF sensor 1530 may overlap with the AF coil 1520 in the optical axis direction. The AF sensor 1530 may overlap with the AF magnet 1510 in the x-axis direction. As a modified example, the AF sensor 1530 may be disposed outside the AF coil 1520. The AF sensor 1530 may face the AF magnet 1510. The AF sensor 1530 may be disposed in a position corresponding to the AF magnet 1510.

[0315] The AF sensor 1530 may include a driver IC. In this case, the driver IC may be electrically connected to the AF coil 1520. The driver IC may apply current to the AF coil 1520.

[0316] The lens driving device 1010 may include a capacitor 1540. The capacitor 1540 may be disposed on the side substrate 1130. The capacitor 1540 may be disposed adjacent to the AF sensor 1530. The capacitor 1540 may be disposed within the AF coil 1520. The capacitor 1540 may remove noise associated with data and current transmitted and received by the AF sensor 1530.

[0317] The lens driving device 1010 may include an OIS-x driving part 1600. The OIS-x driving part 1600 may enable the OIS-x movable part 1300 to move in the x-axis direction perpendicular to the optical axis direction and the y-axis direction. The OIS-x driving part 1600 may enable the OIS-x bearing 1310 to move in the x-axis direction. The OIS-x driving part 1600 may enable the OIS-x bearing 1310 to move in the x-axis direction by electromagnetic force. The OIS-x driving part 1600 may include a coil and a magnet. The OIS-x coil 1620 and the OIS-x magnet 1610 may enable the OIS-x movable part 1300 to move in the x-axis direction perpendicular to the optical axis direction and the y-axis direction.

[0318] When the OIS-x movable portion 1300 is moved by the OIS-x driving portion 1600, the AF movable portion 1200 and the OIS-y movable portion 1400 may move together with the OIS-x movable portion 1300. The AF movable portion 1200 and the OIS-y movable portion 1400 may move along the x-axis direction together with the OIS-x movable portion 1300.

[0319] The lens driving device 1010 may include an OIS-x magnet 1610. The OIS-x driving portion 1600 may include an OIS-x magnet 1610. The OIS-x magnet 1610 may be disposed on the OIS-x movable portion 1300. The OIS-x magnet 1610 may be disposed on the OIS-x carrier 1310. The OIS-x magnet 1610 may be disposed in a groove 1315 of the OIS-x carrier 1310. The OIS-x magnet 1610 may be fixed to the OIS-x carrier 1310. The OIS-x magnet 1610 may be coupled to the OIS-x carrier 1310. The OIS-x magnet 1610 may be bonded to the OIS-x carrier 1310 with an adhesive. The OIS-x magnet 1610 may be disposed within the cover 1120. The OIS-x magnet 1610 may interact with the OIS-x coil 1620. The OIS-x magnet 1610 may electromagnetically interact with the OIS-x coil 1620. The OIS-x magnet 1610 may be disposed in a position corresponding to the OIS-x coil 1620. The OIS-x magnet 1610 may be disposed opposite to the OIS-x coil 1620. The OIS-x magnet 1610 may be opposite to the OIS-x coil 1620. The OIS-x magnet 1610 may overlap on the OIS-x coil 1620 in the optical axis direction.

[0320] The OIS-x magnet 1610 may be a two-pole magnet. The OIS-x magnet 1610 may include an N pole and an S pole. The inner side of the OIS-x magnet 1610 may have an N pole, and the outer side of the OIS-x magnet 1610 may have an S pole.

[0321] As a variation example, the OIS-x magnet 1610 may be a 4-pole magnet. The OIS-x magnet 1610 may include a 4-pole magnetized magnet. The OIS-x magnet 1610 may include a first magnet portion including an N pole and an S pole and a second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a horizontal direction. The first magnet portion and the second magnet portion may be arranged separately in the horizontal direction, and a neutral zone may be arranged between the first magnet portion and the second magnet portion.

[0322] In the second embodiment of the present invention, even when the OIS-x magnet 1610 moves due to the interaction between the OIS-x coil 1620 and the OIS-x magnet 1610 , the distance between the OIS-x coil 1620 and the OIS-x magnet 1610 may be maintained constant.

[0323] The lens driving device 1010 may include an OIS-x coil 1620. The OIS-x driving portion 1600 may include an OIS-x coil 1620. The OIS-x coil 1620 may interact with the OIS-x magnet 1610. The OIS-x coil 1620 may enable the OIS-x magnet 1610 to move in the x-axis direction. The OIS-x coil 1620 may enable the OIS-x magnet 1610 to move in the x-axis direction by interacting with the OIS-x magnet 1610. The OIS-x coil 1620 may be opposite to the OIS-x magnet 1610. The OIS-x coil 1620 faces the OIS-x magnet 1610. The OIS-x coil 1620 may be disposed in a position corresponding to the OIS-x magnet 1610. The OIS-x coil 1620 may be disposed on the lower substrate 1140. The OIS-x coil 1620 may be disposed on the lower substrate 1140 in a position corresponding to the OIS-x magnet 1610. The OIS-x coil 1620 may be disposed on the base 1110. The OIS-x coil 1620 may be disposed in the fixed portion 1100.

[0324] The lens driving device 1010 may include an OIS-x sensor 1630. The OIS-x driving portion 1600 may include the OIS-x sensor 1630. The OIS-x sensor 1630 may be disposed on the lower substrate 1140. The OIS-x sensor 1630 may include a Hall IC. The OIS-x sensor 1630 may have a Hall sensor. The OIS-x sensor 1630 may detect the OIS-x magnet 1610. The OIS-x sensor 1630 may detect the magnetic force of the OIS-x magnet 1610. The OIS-x sensor 1630 may detect the movement of the OIS-x magnet 1610. The amount or position of the movement of the OIS-x magnet 1610 detected by the OIS-x sensor 1630 may be used for feedback of optical image stabilization (OIS) driving in the x-axis direction.

[0325] The OIS-x sensor 1630 may be disposed within the OIS-x coil 1620. The OIS-x sensor 1630 may overlap with the OIS-x coil 1620 in a direction perpendicular to the optical axis. The OIS-x sensor 1630 may overlap with the OIS-x magnet 1610 in the optical axis direction. As a modified example, the OIS-x sensor 1630 may be disposed outside the OIS-x coil 1620. The OIS-x sensor 1630 may be opposite to the OIS-x magnet 1610. The OIS-x sensor 1630 may be disposed in a position corresponding to the OIS-x magnet 1610.

[0326] The lens driving device 1010 may include an OIS-y driving part 1700. The OIS-y driving part 1700 may enable the OIS-y movable part 1400 to move in the y-axis direction perpendicular to the optical axis direction and the x-axis direction. The OIS-y driving part 1700 may enable the OIS-y bearing 1410 to move in the y-axis direction. The OIS-y driving part 1700 may enable the OIS-y bearing 1410 to move in the y-axis direction by electromagnetic force. The OIS-y driving part 1700 may include a coil and a magnet. The OIS-y coil 1720 and the OIS-y magnet 1710 may enable the OIS-y movable part 1400 to move in the y-axis direction perpendicular to the optical axis.

[0327] When the OIS-y movable portion 1400 is moved by the OIS-y driving portion 1700, the AF movable portion 1200 may move together with the OIS-y movable portion 1400. The AF movable portion 1200 may move together with the OIS-y movable portion 1400 in the y-axis direction.

[0328] The lens driving device 1010 may include an OIS-y magnet 1710. The OIS-y driving part 1700 may include an OIS-y magnet 1710. The OIS-y magnet 1710 may be disposed on the OIS-y movable part 1400. The OIS-y magnet 1710 may be disposed on the OIS-y carrier 1410. The OIS-y magnet 1710 may be disposed in a groove 1413 of the OIS-y carrier 1410. The OIS-y magnet 1710 may be disposed on the outside of the OIS-y carrier 1410. The OIS-y magnet 1710 may be fixed to the OIS-y carrier 1410. The OIS-y magnet 1710 may be coupled to the OIS-y carrier 1410. The OIS-y magnet 1710 may be bonded to the OIS-y carrier 1410 with an adhesive. The OIS-y magnet 1710 may be disposed within the cover 1120. The OIS-y magnet 1710 may interact with the OIS-y coil 1720. The OIS-y magnet 1710 may electromagnetically interact with the OIS-y coil 1720. The OIS-y magnet 1710 may be disposed in a position corresponding to the OIS-y coil 1720. The OIS-y magnet 1710 may face the OIS-y coil 1720. The OIS-y magnet 1710 may be opposite to the OIS-y coil 1720. The OIS-y magnet 1710 may overlap on the OIS-y coil 1720 in the optical axis direction.

[0329] The OIS-y magnet 1710 may be a two-pole magnet. The OIS-y magnet 1710 may include an N pole and an S pole. The inner side of the OIS-y magnet 1710 may have an N pole, and the outer side of the OIS-y magnet 1710 may have an S pole.

[0330] As a modified example, the OIS-y magnet 1710 may be a quadrupole magnet. The OIS-y magnet 1710 may include a quadrupole magnetized magnet. The OIS-y magnet 1710 may include a first magnet portion including an N pole and an S pole and a second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a horizontal direction. The first magnet portion and the second magnet portion may be arranged separately in the horizontal direction, and a neutral zone may be arranged between the first magnet portion and the second magnet portion.

[0331] The lens driving device 1010 may include an OIS-y coil 1720. The OIS-y driving portion 1700 may include an OIS-y coil 1720. The OIS-y coil 1720 may interact with the OIS-y magnet 1710. The OIS-y coil 1720 may move the OIS-y magnet 1710 in the y-axis direction. The OIS-y coil 1720 may move the OIS-y magnet 1710 in the y-axis direction by interacting with the OIS-y magnet 1710. The OIS-y coil 1720 may be opposite to the OIS-y magnet 1710. The OIS-y coil 1720 may face the OIS-y magnet 1710. The OIS-y coil 1720 may be disposed in a position corresponding to the OIS-y magnet 1710. The OIS-y coil 1720 may be disposed on the lower substrate 1140. The OIS-y coil 1720 may be disposed on the lower substrate 1140 in a position corresponding to the OIS-y magnet 1710. The OIS-y coil 1720 may be disposed on the base 1110. The OIS-y coil 1720 may be disposed in the fixed portion 1100.

[0332] The lens driving device 1010 may include an OIS-y sensor 1730. The OIS-y driving portion 1700 may include the OIS-y sensor 1730. The OIS-y sensor 1730 may be disposed on the lower substrate 1140. The OIS-y sensor 1730 may include a Hall IC. The OIS-y sensor 1730 may have a Hall sensor. The OIS-y sensor 1730 may detect the OIS-y magnet 1710. The OIS-y sensor 1730 may detect the magnetic force of the OIS-y magnet 1710. The OIS-y sensor 1730 may detect the movement of the OIS-y magnet 1710. The amount or position of the movement of the OIS-y magnet 1710 detected by the OIS-y sensor 1730 may be used for feedback of OIS (optical image stabilization) driving in the y-axis direction.

[0333] The OIS-y sensor 1730 may be disposed within the OIS-y coil 1720. The OIS-y sensor 1730 may overlap with the OIS-y coil 1720 in a direction perpendicular to the optical axis. The OIS-y sensor 1730 may overlap with the OIS-y magnet 1710 in the optical axis direction. As a modified example, the OIS-y sensor 1730 may be disposed outside the OIS-y coil 1720. The OIS-y sensor 1730 may be opposite to the OIS-y magnet 1710. The OIS-y sensor 1730 may be disposed in a position corresponding to the OIS-y magnet 1710.

[0334] The lens driving device 1010 may include a guide member. The guide member may include a spherical member. The guide member may include a pin. The guide member may include a cylindrical member. The guide member may guide the movement of the movable part relative to the fixed part 1100 in a specific direction.

[0335] The lens driving device 1010 may include a supporting member. The supporting member may include a spherical member.

[0336] The lens driving device 1010 may include an AF guide spherical member 1810. The AF guide spherical member 1810 may guide the movement of the AF movable part 1200 in the optical axis direction. The AF guide spherical member 1810 may guide the movement of the AF bearing 1210 in the optical axis direction. The AF guide spherical member 1810 may guide the movement of the OIS-y bearing 1410 of the AF bearing 1210 in the optical axis direction. The AF guide spherical member 1810 may be disposed between the AF movable part 1200 and the OIS-y movable part 1400. The AF movable part 1200 and the OIS-y movable part 1400 may include grooves 1211, 1411 extending in the optical axis direction. The AF guide spherical member 1810 may be disposed between the groove 1211 of the AF movable part 1200 and the groove 1411 of the OIS-y movable part 1400. The AF guide sphere 1810 may be disposed between the OIS-y bearing 1410 and the AF bearing 1210. The AF guide sphere 1810 may be disposed between the OIS-y bearing 1410 and the AF bearing 1210 in the x-axis direction. The AF guide sphere 1810 may be disposed between the inner side of the OIS-y bearing 1410 and the outer side of the AF bearing 1210. When viewed from the outer side of the AF bearing 1210, the AF guide sphere 1810 may overlap with the AF magnet 1510 in the horizontal direction.

[0337] The AF guide spherical member 1810 may be disposed between the groove 1411 of the OIS-y movable portion 1400 and the groove 1211 of the AF movable portion 1200. At least one of the groove 1411 of the OIS-y movable portion 1400 and the groove 1211 of the AF movable portion 1200 may extend longer than a diameter of the AF guide spherical member 1810 in the optical axis direction.

[0338] The AF guide sphere 1810 may be disposed in the groove 1411 of the OIS-y bearing 1410. The AF guide sphere 1810 may be disposed in the groove 1211 of the AF bearing 1210. The AF guide sphere 1810 may include a 1-1 sphere contacting the OIS-y bearing 1410 and the AF bearing 1210 at four points and a 1-2 sphere contacting the OIS-y bearing 1410 and the AF bearing 1210 at three points. The AF guide sphere 1810 may be spherical. The AF guide sphere 1810 may be formed of metal. Grease may be applied to the surface of the AF guide sphere 1810.

[0339] The AF guide spherical member 1810 may include a plurality of spherical members. The AF guide spherical member 1810 may include four spherical members. Two AF guide spherical members 1810 may be disposed on one side of the AF magnet 1510, and the remaining two AF guide spherical members 1810 may be disposed on the other side of the AF magnet 1510. The AF guide spherical member 1810 may include a plurality of unit spherical members. The AF guide spherical member 1810 may include a spherical member portion including a plurality of unit spherical members.

[0340] The lens driving device 1010 may include an OIS-x guide ball 1820. The OIS-x guide ball 1820 may guide the movement of the OIS-x movable part 1300 in the x-axis direction. The OIS-x guide ball 1820 may guide the movement of the OIS-x bearing 1310 in the x-axis direction. The OIS-x guide ball 1820 may guide the movement of the OIS-x bearing 1310 relative to the base 1110 in the x-axis direction. The OIS-x guide ball 1820 may be disposed between the OIS-x movable part 1300 and the fixed part 1100. The OIS-x movable part 1300 and the fixed part 1100 may include grooves 1111, 1312 extending in the x-axis direction. The OIS-x guide ball 1820 may be disposed between the groove 1312 of the OIS-x movable part 1300 and the groove 1111 of the fixed part 1100. The OIS-x guide sphere 1820 may be disposed between the base 1110 and the OIS-x carrier 1310. The OIS-x guide sphere 1820 may be disposed between the base 1110 and the OIS-x carrier 1310 in the optical axis direction.

[0341] The OIS-x guide ball 1820 may be disposed between the groove 1111 of the base 1110 and the groove 1312 of the OIS-x movable part 1300. At least one of the groove 1111 of the base 1110 and the groove 1312 of the OIS-x movable part 1300 may extend longer than a diameter of the OIS-x guide ball 1820 in the x-axis direction.

[0342] The OIS-x guide ball 1820 may be disposed in the groove 1111 of the base 1110. The OIS-x guide ball 1820 may be disposed in the groove 1312 of the OIS-x bearing 1310. The OIS-x guide ball 1820 may include a 1-1st ball contacting the base 1110 and the OIS-x bearing 1310 at four points and a 1-2nd ball contacting the base 1110 and the OIS-x bearing 1310 at three points. The OIS-x guide ball 1820 may be spherical. The OIS-x guide ball 1820 may be formed of metal. Grease may be applied to the surface of the OIS-X guide ball 1820.

[0343] The OIS-x guide spherical member 1820 may include a plurality of spherical members. The OIS-x guide spherical member 1820 may include four spherical members. The four spherical members may be disposed in four corner regions of the upper surface of the base 1110. The OIS-x guide spherical member 1820 may include a plurality of unit spherical members. The OIS-x guide spherical member 1820 may include a spherical member portion including a plurality of unit spherical members.

[0344] The lens driving device 1010 may include an OIS-y guide sphere 1830. The OIS-y guide sphere 1830 may guide the movement of the OIS-y movable part 1400 in the y-axis direction. The OIS-y guide sphere 1830 may guide the movement of the OIS-y bearing 1410 in the y-axis direction. The OIS-y guide sphere 1830 may guide the movement of the OIS-x bearing 1310 of the OIS-y bearing 1410 in the y-axis direction. The OIS-y guide sphere 1830 may be disposed between the OIS-y movable part 1400 and the OIS-x bearing 1310. The OIS-y guide sphere 1830 may be disposed between the OIS-y movable part 1400 and the OIS-x bearing 1310 in the optical axis direction. The OIS-y movable part 1400 and the OIS-x movable part 1300 may include grooves 1311, 1412 extending in the y-axis direction. The OIS-y guide ball 1830 may be disposed between the groove 1412 of the OIS-y movable part 1400 and the groove 1311 of the OIS-x movable part 1300. The OIS-y guide ball 1830 may be disposed between the OIS-x carrier 1310 and the OIS-y carrier 1410. The OIS-y guide ball 1830 may be disposed between the OIS-x carrier 1310 and the OIS-y carrier 1410 in the optical axis direction. The OIS-y guide ball 1830 may be disposed in the groove 1311 of the OIS-x carrier 1310. The OIS-y guide sphere 1830 may be disposed between an upper surface of the OIS-x carrier 1310 and a lower surface of the OIS-y carrier 1410 .

[0345] The OIS-y guide sphere 1830 may be disposed between the groove 1311 of the OIS-x movable portion 1300 and the groove 1412 of the OIS-y movable portion 1400. At least one of the groove 1311 of the OIS-x movable portion 1300 and the groove 1412 of the OIS-y movable portion 1400 may extend longer than a diameter of the OIS-y guide sphere 1830 in the y-axis direction.

[0346] The OIS-y guide sphere 1830 may be disposed in the groove 1311 of the OIS-x carrier 1310. The OIS-y guide sphere 1830 may be disposed in the groove 1412 of the OIS-y carrier 1410. The OIS-y guide sphere 1830 may include a 1-1st sphere contacting the OIS-x carrier 1310 and the OIS-y carrier 1410 at four points and a 1-2nd sphere contacting the OIS-x carrier 1310 and the OIS-y carrier 1410 at three points. The OIS-y guide sphere 1830 may be spherical. The OIS-y guide sphere 1830 may be formed of metal. Grease may be applied to the surface of the OIS-y guide sphere 1830.

[0347] The OIS-y guide spherical member 1830 may include a plurality of spherical members. The OIS-y guide spherical member 1830 may include four spherical members. The four spherical members may be arranged in four corner areas on the upper surface of the OIS-x carrier 1310. The OIS-y guide spherical member 1830 may include a plurality of unit spherical members. The OIS-y guide spherical member 1830 may include a spherical member portion including a plurality of unit spherical members.

[0348] The lens driving device 1010 may include a ball pressure member. The ball pressure member may include a yoke. The yoke may be an "attraction yoke". The yoke may be an "attraction member". The yoke may be formed of metal. An attraction force may be generated between the yoke and the magnets 1510, 1610, 1710. The balls 1810, 1820, 1830 may be pressed by the attraction force of the yoke and the magnets 1510, 1610, 1710.

[0349] The lens driving device 1010 may include a magnetic member. The magnetic member may include a yoke.

[0350] The yoke may include a plurality of yokes. The yoke may include three yokes. The yoke may include an AF attraction yoke 1910, an OIS-x attraction yoke 1920, and an OIS-y attraction yoke 1930. The AF attraction yoke 1910, the OIS-x attraction yoke 1920, and the OIS-y attraction yoke 1930 may be spaced apart from each other.

[0351] The lens driving device 1010 may include an AF attraction yoke 1910. The AF attraction yoke 1910 may be disposed on the OIS-y movable part 1400. The AF attraction yoke 1910 may be disposed on the OIS-y carrier 1410. The AF attraction yoke 1910 may be coupled to the OIS-y carrier 1410. The AF attraction yoke 1910 may be fixed to the OIS-y carrier 1410. The AF attraction yoke 1910 may be bonded to the OIS-y carrier 1410 with an adhesive. The AF attraction yoke 1910 may be disposed on an outer surface of the OIS-y carrier 1410. The AF attraction yoke 1910 may be disposed in a position corresponding to the AF magnet 1510. The AF attraction yoke 1910 may act on the AF magnet 1510 using an attraction force. An attraction force may be generated between the AF attraction yoke 1910 and the AF magnet 1510. The AF guide sphere 1810 may be pressurized by the attraction force of the AF magnet 1510 and the AF magnet 1910. The AF guide sphere 1810 may be pressed between the AF carrier 1210 and the OIS-y carrier 1410 by the attraction force between the AF magnet 1510 and the AF magnet 1510. The AF guide sphere 1810 may be pressed between the AF movable part 1200 and the OIS-y movable part 1400 by the attraction force between the AF magnet 1510 and the AF attraction yoke 1910. The AF guide sphere 1810 may be tightly fitted between the AF movable part 1200 and the OIS-y movable part 1400.

[0352] When viewed from the outside, the AF attraction yoke 1910 and the AF magnet 1510 can be seen. The AF attraction yoke 1910 and the AF magnet 1510 can be arranged on the outer surface facing the same direction. When viewed from the outside, the AF magnet 1510 can be seen between the AF attraction yokes 1910.

[0353] The AF attraction yoke 1910 may include a plurality of yokes. The AF attraction yoke 1910 may include a first unit yoke 1911 and a second unit yoke 1912. The AF attraction yoke 1910 may include a first unit yoke 1911 and a second unit yoke 1912 spaced apart from each other. The first unit yoke 1911 and the second unit yoke 1912 may be disposed on either side of the AF magnet 1510. The first unit yoke 1911 may be disposed on one side of the AF magnet 1510, and the second unit yoke 1912 may be disposed on the other side of the AF magnet 1510. The first unit yoke 1911 and the second unit yoke 1912 may be disposed to extend in the optical axis direction.

[0354] The AF magnet 1510 may overlap with the AF attraction yoke 1910 in the y-axis direction. The AF magnet 1510 may be disposed between the first unit yoke 1911 and the second unit yoke 1912 in the y-axis direction. The AF magnet 1510 may be disposed between the first unit yoke 1911 and the second unit yoke 1912. When viewed from the outside, the AF magnet 1510 may be disposed between the first unit yoke 1911 and the second unit yoke 1912. The AF magnet 1510 may not overlap with the AF attraction yoke 1910 in the x-axis direction. However, as a modified example, the AF magnet 1510 may overlap with the AF attraction yoke 1910 in the x-axis direction. Since the corner area of ​​the AF magnet 1510 is omitted, a space for accommodating the AF attraction yoke 1910 may be created. As a modified example, the AF attraction yoke 1910 may be disposed outside the AF magnet 1510 such that the AF attraction yoke 1910 does not overlap with the AF magnet 1510 in the y-axis direction.

[0355] The upper end portion of the AF magnet 1510 may be set to be higher than the upper end portion of the AF attraction yoke 1910. When the AF movable part 1200 moves as far as possible toward the lower side in the optical axis direction, the upper end portion of the AF magnet 1510 may be set at the same height as the upper end portion of the AF attraction yoke 1910. As a modified example, when the AF movable part 1200 moves as far as possible toward the lower side in the optical axis direction, the upper end portion of the AF magnet 1510 may be set to be higher than the upper end portion of the AF attraction yoke 1910. When the AF movable part 1200 moves as far as possible toward the lower side in the optical axis direction, the upper end portion of the AF magnet 1510 may be set to be lower than the upper end portion of the AF attraction yoke 1910.

[0356] The lower end portion of the AF magnet 1510 may be set to be lower than the lower end portion of the AF attraction yoke 1910. When the AF movable part 1200 moves as far as possible in the optical axis direction, the lower end portion of the AF magnet 1510 may be set at the same height as the lower end portion of the AF attraction yoke 1910. As a modified example, when the AF movable part 1200 moves as far as possible in the optical axis direction, the lower end portion of the AF magnet 1510 may be set to be higher than the lower end portion of the AF attraction yoke 1910. When the AF movable part 1200 moves as far as possible in the optical axis direction, the lower end portion of the AF magnet 1510 may be set to be lower than the lower end portion of the AF attraction yoke 1910.

[0357] In the second embodiment of the present invention, the AF movable part 1200 may include a first surface. The OIS-y movable part 1400 may include a first surface facing the same direction as the first surface. The AF magnet 1510 may be disposed on the first surface of the AF movable part 1200. The AF attraction yoke 1910 may be disposed on the first surface of the OIS-y movable part 1400. At this time, the first surface of the AF movable part 1200 may be an outer surface. The first surface of the OIS-y movable part 1400 may be an outer surface. The OIS-y movable part 1400 may include a groove formed in a concave manner on the first surface of the OIS-y movable part 1400. The AF attraction yoke 1910 may be disposed in the groove 1414 of the OIS-y movable part 1400.

[0358] In the second embodiment of the present invention, when the AF attraction yoke 1910 is disposed on the OIS-y carrier 1410, the OIS-x driving may not be affected. For a comparative example, if the AF attraction yoke 1910 is disposed on the side substrate 1130, i.e., the fixed portion 1100, the OIS-x driving may be disturbed by the attraction between the AF attraction yoke 1910 and the AF magnet 1510.

[0359] The lens driving device 1010 may include an OIS-x attraction yoke 1920. The OIS-x attraction yoke 1920 may be disposed on the fixed portion 1100. The OIS-x attraction yoke 1920 may be disposed on the base 1110. The OIS-x attraction yoke 1920 may be coupled to the base 1110. The OIS-x attraction yoke 1920 may be fixed to the base 1110. The OIS-x attraction yoke 1920 may be glued to the base 1110. The OIS-x attraction yoke 1920 may be disposed on the lower substrate 1140. The OIS-x attraction yoke 1920 may be coupled to the lower substrate 1140. The OIS-x attraction yoke 1920 may be fixed to the lower substrate 1140. The OIS-x attraction yoke 1920 may be bonded to the lower substrate 1140 with an adhesive. The OIS-x attraction yoke 1920 may be disposed between the base 1110 and the lower substrate 1140. The OIS-x attraction yoke 1920 may be disposed in a groove of the base 1110 .

[0360] The OIS-x attraction yoke 1920 may be disposed in a position corresponding to the OIS-x magnet 1610. The OIS-x magnet 1610 may work with the OIS-x attraction yoke 1920 using an attraction force. An attraction force may occur between the OIS-x attraction yoke 1920 and the OIS-x magnet 1610. The OIS-x guide spherical member 1820 may be pressed by the attraction force between the OIS-x yoke 1920 and the OIS-x magnet 1610. The OIS-x guide spherical member 1820 may be pressed between the OIS-x carrier 1310 and the base 1110 by the attraction force between the OIS-x attraction yoke 1920 and the OIS-x magnet 1610. The OIS-x guide spherical member 1820 may be tightly fitted between the OIS-x carrier 1310 and the base 1110.

[0361] The lens driving device 1010 may include an OIS-y attraction yoke 1930. The OIS-y attraction yoke 1930 may be disposed on the fixed portion 1100. The OIS-y attraction yoke 1930 may be disposed on the base 1110. The OIS-y attraction yoke 1930 may be coupled to the base 1110. The OIS-y attraction yoke 1930 may be fixed to the base 1110. The OIS-y attraction yoke 1930 may be glued to the base 1110 with an adhesive. The OIS-y attraction yoke 1930 may be disposed on the lower substrate 1140. The OIS-y attraction yoke 1930 may be coupled to the lower substrate 1140. The OIS-y attraction yoke 1930 may be fixed to the lower substrate 1140. The OIS-y attraction yoke 1930 may be bonded to the lower substrate 1140 with an adhesive. The OIS-y attraction yoke 1930 may be disposed between the base 1110 and the lower substrate 1140. The OIS-y attraction yoke 1930 may be disposed in a groove of the base 1110 .

[0362] The OIS-y attraction yoke 1930 may be disposed in a position corresponding to the OIS-y magnet 1710. The OIS-y magnet 1710 may act on the OIS-y magnet 1930 using an attraction force. An attraction force may be generated between the OIS-y attraction yoke 1930 and the OIS-y magnet 1710. The OIS-y guide spherical member 1830 may be pressurized by the attraction force of the OIS-y magnet 1710 and the OIS-y attraction yoke 1930. The OIS-y guide spherical member 1830 may be pressurized between the OIS-y carrier 1410 and the OIS-x carrier 1310 by the attraction force of the OIS-y magnet 1710 and the OIS-y attraction yoke 1930. The OIS-y guide spherical member 1830 may be tightly fitted between the OIS-y carrier 1410 and the OIS-x carrier 1310.

[0363] The lens driving device 1010 may include a first additional pressure attraction member 1940. The first additional pressure attraction yoke 1940 may act on the OIS-x magnet 1610 using attraction. The first additional pressure attraction yoke 1940 may be disposed on the OIS-y movable part 1400. This allows the OIS-y movable part 1400 to be pressed downward. The first additional pressure attraction yoke 1940 may be disposed on opposite sides of the OIS-x attraction yoke 1920. This allows both sides of the OIS-y movable part 1400 to be pressed downward.

[0364] The lens driving device 1010 may include a second additional pressure attraction yoke 1950. The second additional pressure attraction yoke 1950 may act on the attraction magnet 1955 using attraction. The second additional pressure attraction yoke 1950 may be disposed on the fixed part 1100. The second additional pressure attraction yoke 1950 may be disposed on the base 1110. The second additional pressure attraction yoke 1950 may be disposed on the lower substrate 1140. The second additional pressure attraction yoke 1950 may be disposed between the lower substrate 1140 and the base 1110. The second additional pressure attraction yoke 1950 may pull the attraction magnet 1955 downward. This allows the OIS-y movable part 1400 on which the attraction magnet 1955 is disposed to be pressed downward.

[0365] The lens driving device 1010 may include an attraction magnet 1955. The attraction magnet 1955 may be disposed on the OIS-y movable part 1400. The attraction magnet 1955 may be disposed on the protrusion 1415 of the OIS-y movable part 1400. The attraction magnet 1955 may overlap with the second additional pressure attraction yoke 1950 in the optical axis direction. The attraction magnet 1955 may be disposed in a position corresponding to the second additional pressure attraction yoke 1950. The attraction magnet 1955 may be formed in a smaller size than the driving magnets 1510, 1610, 1710.

[0366] A lens driving device according to a modified example is described below with reference to the drawings.

[0367] Figure 43b is an exploded perspective view of a lens driving device according to a first modified example.

[0368] In the lens driving device according to the first modified example, the second additional pressure attraction yoke 1950 and the attraction magnet 1955 may be omitted.

[0369] Fig.43c is an exploded perspective view of a lens driving device according to a second modification example.

[0370] In the lens driving device according to the second modified example, the first additional pressure attraction yoke 1940 may be omitted.

[0371] Figure 43d is an exploded perspective view of a lens driving device according to a third modified example.

[0372] In the lens driving device according to the third modified example, the first additional pressure attraction yoke 1940 , the second additional pressure attraction yoke 1950 , and the attraction magnet 1955 may be omitted.

[0373] An auto focus (AF) operation of a lens driving device according to a second embodiment of the present invention will be described below with reference to the accompanying drawings.

[0374] Figure 57 to Figure 59 FIG. 1 is a diagram for explaining an autofocus operation of a lens driving device according to a second embodiment of the present invention. Fig.57 is a cross-sectional view showing the AF movable portion in an initial state when no current is applied to the AF coil. Fig.58 is a cross-sectional view showing that the AF movable portion moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.59 is a cross-sectional view showing the AF movable portion moving to the lower side of the optical axis when a reverse current is applied to the AF coil.

[0375] In an initial position where no current is applied, the movable portion may be disposed at a position where both the upper plate 1121 of the cover 1120 and the base 1110 are spaced apart. At this time, the movable portion may be the AF movable portion 1200.

[0376] When a positive current is applied to the AF coil 1520, the AF magnet 1510 may move upward along the optical axis due to the electromagnetic interaction between the AF coil 1520 and the AF magnet 1510 (see Fig.58 At this time, the AF carrier 1210 can move upward along the optical axis direction together with the AF magnet 1510. In addition, the lens can move upward along the optical axis direction together with the AF carrier 1210. Therefore, the distance between the lens and the image sensor can be changed to adjust the focus of the image projected onto the image sensor through the lens.

[0377] When a reverse current is applied to the AF coil 1520, the AF magnet 1510 may move downward along the optical axis due to the electromagnetic interaction between the AF coil 1520 and the AF magnet 1510 (see Fig.59 B). At this time, the AF carrier 1210 can be moved to the lower side of the optical axis together with the AF magnet 1510. In addition, the lens can be moved to the lower side of the optical axis together with the AF carrier 1210. Therefore, the distance between the lens and the image sensor can be changed to adjust the focus of the image projected onto the image sensor through the lens.

[0378] Meanwhile, during the movement of the AF magnet 1510, the AF sensor 1530 may detect the strength of the magnetic field of the AF magnet 1510 and thus detect the amount or position of the movement of the AF magnet 1510. The amount or position of the movement of the AF magnet 1510 detected by the AF sensor 1530 may be used for auto focus feedback control.

[0379] The operation of the optical image stabilization (OIS) of the lens driving device according to the second embodiment of the present invention will be described below with reference to the accompanying drawings.

[0380] Figure 60 to Figure 62 FIG. 1 is a diagram for explaining image stabilization driving of the lens driving device according to the second embodiment of the present invention. Fig.60 is a cross-sectional view showing the state of the movable portion in an initial state when no current is applied to the OIS-x coil and the OIS-y coil. Fig.61 : is a cross-sectional view showing that the OIS-x coil is energized and the OIS-x movable portion, the OIS-y movable portion, and the AF movable portion move in the x-axis direction perpendicular to the optical axis. Fig.62 is a cross-sectional view showing the movement of the OIS-y movable portion and the AF movable portion in the y-axis direction perpendicular to the optical axis when current is applied to the OIS-y coil.

[0381] like Fig.60 As shown in FIG. 1 , the movable portion may be set in an initial position in which no current is applied to the OIS-x coil 1620 and the OIS-y coil 1720. At this time, the movable portion may be the OIS-x movable portion 1300 and the OIS-y movable portion 1400. In addition, the movable portion may include the AF movable portion 1200, the OIS-x movable portion 1300, and the OIS-y movable portion 1400.

[0382] When current is applied to the OIS-x coil 1620, the OIS-x magnet 1610 may move in the x-axis direction perpendicular to the optical axis due to electromagnetic interaction between the OIS-x coil 1620 and the OIS-x magnet 1610 (see Fig.61A in ). At this time, the OIS-x carrier 1310 can move along the x-axis direction together with the OIS-x magnet 1610. In addition, the OIS-x carrier 1310 can move along the x-axis direction together with the OIS-y carrier 1410, the AF carrier 1210 and the lens. More specifically, when a forward current is applied to the OIS-x coil 1620, the OIS-x magnet 1610, the OIS-x carrier 1310, the OIS-y carrier 1410, the AF carrier 1210 and the lens can move in one direction along the x-axis. In addition, when a reverse current is applied to the OIS-x coil 1620, the OIS-x magnet 1610, the OIS-x carrier 1310, the OIS-y carrier 1410, the AF carrier 1210 and the lens can move in another direction on the x-axis.

[0383] When current is applied to the OIS-y coil 1720, the OIS-y magnet 1710 may move in the y-axis direction perpendicular to the optical axis due to electromagnetic interaction between the OIS-y coil 1720 and the OIS-y magnet 1710 (see Fig.62 B). At this time, the OIS-y magnet 1710 and the OIS-y carrier 1410 can move in the y-axis direction. In addition, the AF carrier 1210 and the lens can move in the y-axis direction together with the OIS-y carrier 1410. More specifically, when a forward current is applied to the OIS-y coil 1720, the OIS-y magnet 1710, the OIS-y carrier 1410, the AF carrier 1210 and the lens can move in one direction along the y-axis. In addition, when a reverse current is applied to the OIS-y coil 1720, the OIS-y magnet 1710, the OIS-y carrier 1410, the AF carrier 1210 and the lens can move in another direction on the y-axis.

[0384] Meanwhile, the OIS-x sensor 1630 may detect the amount or position of movement of the OIS-x magnet 1610 by detecting the strength of the magnetic field of the OIS-x magnet 1610. The amount or position of movement of the OIS-x magnet 1610 detected by the OIS-x sensor 1630 may be used for x-axis direction image stabilization feedback control. The OIS-y sensor 1730 may detect the amount or position of movement of the OIS-y magnet 1710 by detecting the strength of the magnetic field of the OIS-y magnet 1710. The amount or position of movement of the OIS-y magnet 1710 detected by the OIS-y sensor 1730 may be used for y-axis direction image stabilization feedback control.

[0385] A camera device according to a second embodiment of the present invention will be described below with reference to the drawings.

[0386] Fig.63is an exploded perspective view of a camera device according to a second embodiment of the present invention.

[0387] The camera device 1010A may include a camera module.

[0388] The camera device 1010A may include a lens module 1020. The lens module 1020 may include at least one lens. The lens may be disposed in a position corresponding to the image sensor 1060. The lens module 1020 may include a lens and a lens barrel. The lens module 1020 may be coupled to the AF carrier 1210 of the lens driving device 1010. The lens module 1020 may be threaded and / or coupled to the AF carrier 1210. The lens module 1020 may move together with the AF carrier 1210 as a unit.

[0389] The camera device 1010A may include an optical filter 1030. The optical filter 1030 may be used to block light of a specific frequency band passing through the lens module 1020 from being incident on the image sensor 1060. The optical filter 1030 may be arranged parallel to the xy plane. The optical filter 1030 may be arranged between the lens module 1020 and the image sensor 1060. The optical filter 1030 may be arranged on the sensor base 1040. As a modified example, the optical filter 1030 may be arranged on the base 1110. The optical filter 1030 may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor 1060.

[0390] The camera device 1010A may include a sensor base 1040. The sensor base 1040 may be disposed between the lens driving device 1010 and the printed circuit board 1050. The sensor base 1040 may include a protrusion 1041 in which the filter 1030 is disposed. An opening may be formed in a portion of the sensor base 1040 in which the filter 1030 is disposed so that light passing through the filter 1030 may be incident on the image sensor 1060. An adhesive member may bond or glue the base 1110 of the lens driving device 1010 to the sensor base 1040. The adhesive member may also be used to prevent foreign matter from entering the interior of the lens driving device 1010. The adhesive member may include one or more of an epoxy resin, a thermosetting adhesive, and a UV curing adhesive.

[0391] The camera device 1010A may include a printed circuit board (PCB) 1050. The printed circuit board 1050 may be a substrate or a circuit board. The lens driving device 1010 may be disposed on the printed circuit board 1050. The sensor base 1040 may be disposed between the printed circuit board 1050 and the lens driving device 1010. The printed circuit board 1050 may be electrically connected to the lens driving device 1010. The image sensor 1060 may be disposed on the printed circuit board 1050. The printed circuit board 1050 may be equipped with various circuits, elements, and controllers to convert an image captured by the image sensor 1060 into an electrical signal and transmit it to an external device.

[0392] The camera device 1010A may include an image sensor 1060. The image sensor 1060 may be configured so that light passing through the lens and the filter 1030 is incident on an image. The image sensor 1060 may be mounted on the printed circuit board 1050. The image sensor 1060 may be electrically connected to the printed circuit board 1050. For example, the image sensor 1060 may be coupled to the printed circuit board 1050 by surface mounting technology (SMT). As another example, the image sensor 1060 may be coupled to the printed circuit board 1050 by flip chip technology. The image sensor 1060 may be arranged so that the lens and the optical axis are aligned. In other words, the optical axis of the image sensor 1060 and the optical axis of the lens may be aligned. The image sensor 1060 may convert the light irradiated on the effective image area of ​​the image sensor 1060 into an electrical signal. The image sensor 1060 may be any one of a CCD (charge coupled device), a MOS (metal oxide semiconductor), a CPD, and a CID.

[0393] The camera device 1010A may include a motion sensor 1070. The motion sensor 1070 may be mounted on the printed circuit board 1050. The motion sensor 1070 may be electrically connected to the controller 1080 through a circuit pattern provided on the printed circuit board 1050. The motion sensor 1070 may output rotational angular velocity information based on the motion of the camera device 1010A. The motion sensor 1070 may include a dual-axis or tri-axis gyro sensor or an angular velocity sensor.

[0394] The camera device 1010A may include a controller 1080. The controller 1080 may be disposed on the printed circuit board 1050. The controller 1080 may be electrically connected to the coils 1520, 1620, 1720 and the sensors 1530, 1630, 1730 of the lens driving device 1010. The controller 1080 may individually control the direction, intensity, and amplitude of the current supplied to the coil 1330. The controller 1080 may control the lens driving device 1010 to perform an autofocus function and / or an image stabilization function. In addition, the controller 1080 may perform autofocus feedback control and / or image stabilization feedback control for the lens driving device 1010.

[0395] The camera device 1010A may include a connector 1090. The connector 1090 may be electrically connected to the printed circuit board 1050. The connector 1090 may include a port for electrically connecting to an external device.

[0396] An optical device according to a second embodiment of the present invention will be described below with reference to the drawings.

[0397] Fig.64 is a perspective view of an optical device according to a second embodiment of the present invention, and Fig.65 is a perspective view of an optical device according to a modified example.

[0398] The optical device 1001 may include one or more of a mobile phone, a cellular phone, a portable terminal, a mobile terminal, a smart phone, a smart tablet, a portable smart device, a digital camera, a laptop computer, a digital broadcast terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), and a navigation device. The optical device 1001 may include any device for taking an image or a photo.

[0399] The optical device 1001 may include a body 1020. The optical device 1001 may include a camera device 1010A. The camera device 1010A may be disposed in the body 1020. The camera device 1010A may photograph a subject. The optical device 1001 may include a display. The display may be disposed in the body 1020. The display may output one or more of a video and an image captured by the camera device 1010A. The display may be disposed on a first surface of the body 1020. The camera device 1010A may be disposed on one or more of the first surface of the body 1020 and a second surface opposite to the first surface. Fig.64 As shown in , the camera device 1010A can be arranged in a vertical direction to have three cameras. Fig.65 As shown in , the camera device 1010A-1 can be arranged in a horizontal direction to have three cameras.

[0400] Although the first embodiment and the second embodiment are distinguished above, some configurations of the first embodiment and some configurations of the second embodiment can be mixed. In other words, some configurations of the first embodiment can be replaced by corresponding configurations of the second embodiment. In addition, some configurations of the second embodiment can be replaced by corresponding configurations of the first embodiment. In addition, the third embodiment of the present invention can include some configurations of the first embodiment and some configurations of the second embodiment.

[0401] The above embodiments of the present invention have been described with reference to the accompanying drawings, and it will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical concept or basic features of the present invention. Therefore, the embodiments described above should be understood as exemplary and non-restrictive in all aspects.

Claims

1. A lens driving device, comprising: Coil part; a housing, the housing being disposed on the coil portion; A first carrier, wherein the first carrier is movable along an x-axis perpendicular to the optical axis; A second carrier, wherein the second carrier is movable along a y-axis perpendicular to the optical axis; a coil frame, wherein the coil frame is arranged in the second carrier; A first magnet, wherein the first magnet is disposed on the coil frame; a second magnet, wherein the second magnet is disposed on the first carrier; a third magnet, wherein the third magnet is disposed on the second bearing member; a first spherical member, the first spherical member being disposed between the housing and the first bearing member; as well as a second spherical member, the second spherical member being disposed between the first bearing member and the second bearing member, The coil portion includes a second coil arranged to face the second magnet in the optical axis direction and a third coil arranged to face the third magnet in the optical axis direction.

2. The lens driving device according to claim 1, wherein: The third magnet is disposed between the second carrier and the third coil, and is disposed lower than the second spherical member.

3. The lens driving device according to claim 1, wherein: The housing does not move. 4 . The lens driving device according to claim 1 , comprising a first coil provided on the housing and arranged to face the first magnet. 5 . The lens driving device according to claim 1 , comprising a third spherical member, wherein the third spherical member is disposed between the coil frame and the second carrier.

6. The lens driving device according to claim 1, wherein: The second carrier includes a protrusion protruding in the direction of the third coil, and Wherein, the third magnet is arranged on the protrusion.

7. The lens driving device according to claim 6, wherein: The first carrier includes a groove into which the protrusion is inserted.

8. The lens driving device according to claim 1, wherein: The second magnet and the third magnet overlap on a virtual plane perpendicular to the optical axis direction.

9. The lens driving device according to claim 8, wherein: The virtual plane and the first magnet do not overlap.

10. A lens driving device, comprising: Fixed part; a first movable portion, the first movable portion being disposed in the fixed portion; a second movable part, the second movable part being disposed in the first movable part; a first driving portion configured to move the first movable portion in a direction perpendicular to the optical axis; as well as a second driving section configured to move the second movable section in the optical axis direction, The second driving part includes a first magnet disposed on the second movable part and a first coil disposed to face the first magnet and disposed on the fixed part.

Images