Lens driving apparatus, camera apparatus, and optical apparatus

Abstract

The embodiment of the invention relates to lens driving equipment. The lens driving equipment comprises a base; the shell is arranged on the base; the bobbin is arranged in the shell; a first ball disposed between the housing and the base; a second ball disposed between the housing and the bottom of the bobbin; an elastic member coupled to an upper side of the bobbin; and a wire connecting the elastic member and a lower side of the housing to each other.

Description

Technical Field

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

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

[0003] The camera device has an autofocus function that automatically adjusts the focus according to the distance to the subject. In addition, an optical image stabilization function is applied to prevent the focus from fluctuating due to hand shaking of the user.

[0004] Autofocus and optical image stabilization functions can be performed through the electromagnetic interaction between the magnets and the coils.

[0005] However, in conventional lens drive devices, the arrangement of the magnets and coils for performing the autofocus function involves placing the magnets, which do not require electrical connection, on the movable portion, and securing the coils to the fixed portion. This situation presents a problem: the magnets, which are heavier than the coils, are placed on the movable portion, increasing the current consumption required to perform the autofocus function.

[0006] In particular, recently, as image sensors become more pixelated, the lens diameter increases, and the weight of the lens also increases to cause an increase in weight.

[0007] In addition, in the lens driving apparatus according to the related art, since the guide structure for OIS-x-axis driving and the guide structure for OIS-y-axis driving are respectively provided on separate layers, there is a problem in that the height of the camera device in the optical axis direction increases.

[0008] As the lens moves along the optical axis relative to the image sensor, an autofocus function is performed, and the movement of the lens along the optical axis can be guided by the ball. Here, the attraction between the magnet and the yoke can be used to clamp the ball between the fixed part and the movable part.

[0009] However, in this case, there is a problem that a centering force exists in the optical axis direction. In addition, the movable portion may be tilted due to the contact point of the ball.

[0010] In addition, when a ball is used to guide the movement of a movable portion for the optical image stabilization function, there is a problem in that the ball is displaced from its original position due to external impact or the like.

[0011] (Patent Document 1) KR 10-2015-0118005A Summary of the Invention

[0012] Technical issues

[0013] The present embodiment provides a lens driving apparatus that reduces power consumption for performing an autofocus function by providing a coil that is lightweight compared to a magnet on a movable portion.

[0014] In addition, the present embodiment provides a lens driving apparatus that minimizes the height in the optical axis direction by integrating a guide structure for OIS-x-axis driving with a guide structure for OIS-y-axis driving.

[0015] The present embodiment provides a lens driving apparatus that presses a ball by an elastic member so that a centering force in the optical axis direction is not generated when the ball is pressed by a yoke and a magnet.

[0016] In addition, the present embodiment provides a lens driving apparatus that prevents rotation and tilt of a movable portion by providing a ball guide structure diagonally.

[0017] The present embodiment provides a lens driving apparatus that minimizes detachment or damage of a structure that guides movement of a movable portion for an optical image stabilization function.

[0018] In addition, the present embodiment is intended to provide a lens driving apparatus that ensures a stable bonding surface with a lens by changing a stacking direction during an assembly process.

[0019] Technical Solution

[0020] According to the present embodiment, the lens driving device may include: a base; a shell, which is arranged on the base; a bobbin, which is arranged in the shell; a first ball, which is arranged between the shell and the base; a second ball, which is arranged between the lower side of the bobbin and the shell; an elastic member, which is combined with the upper side of the bobbin; and a wire, which is configured to connect the elastic member and the lower side of the shell.

[0021] The base may include a first guide portion configured to guide the first ball such that the first ball moves.

[0022] The housing may include, on a side surface thereof, a second guide portion configured to guide the first ball such that the first ball moves.

[0023] Each of the first guide portion and the second guide portion may include a groove.

[0024] The case may include a first case including a lower plate having a metal member; and a second case combined with the first case and having a protrusion configured to guide the second ball.

[0025] The lens driving apparatus may further include a first plate disposed between the first housing and the second housing, wherein the first plate may be coupled to a bottom surface of the first housing, and the second housing may be coupled to the first plate.

[0026] The second housing may be configured to press a portion of the elastic member by coming into contact with the second ball.

[0027] The elastic member may include an inner portion coupled to the wire barrel, an outer portion coupled to the wire, and a connection portion connecting the inner portion and the outer portion, wherein the inner portion of the elastic member may be disposed above the outer portion.

[0028] The bobbin may include a first region coupled to the elastic member, and the thread may include a second region coupled to the elastic member, wherein the first region of the bobbin may be disposed above the second region of the thread.

[0029] According to this embodiment, the lens driving device may include: a fixed part; a first movable part, the first movable part is arranged on the fixed part; a second movable part, the second movable part is arranged in the first movable part; a first driving part, the first driving part is configured to move the first movable part in the direction of the optical axis; a second driving part, the second driving part is configured to move the second movable part in a direction perpendicular to the direction of the optical axis; a first ball, the first ball is arranged between the first movable part and the second movable part; an elastic member, the elastic member is combined with the upper surface of the second movable part; and a wire, the wire is arranged in the optical axis direction, wherein the upper end of the wire can be combined with the elastic member, and the lower end of the wire can be combined with the lower surface of the first movable part.

[0030] The first movable portion may include a holder member and a metal member provided on the holder member, wherein the lower end portion of the wire may be coupled to the metal member.

[0031] The first movable portion may include a retainer member and a preload member coupled to the retainer member, wherein the preload member may include a body coupled to the retainer member and a protrusion protruding upward from the body, wherein the first ball may be disposed on the protrusion of the preload member.

[0032] The preload member may include a groove concavely formed in an upper surface of the protrusion, and the first ball may be disposed in the groove of the protrusion.

[0033] The second movable portion may include a groove concavely formed in a lower surface of the second movable portion, and the first ball may be disposed between the groove of the protrusion of the first movable portion and the groove of the second movable portion.

[0034] The fixing portion may include a base and a cover coupled to the base, and the preload member may be provided between the first movable portion and the base in the optical axis direction.

[0035] The first driving portion may include a first magnet provided on the fixed portion and a first coil provided on the first movable portion.

[0036] The second driving part may include a second magnet and a third magnet arranged on the second movable part and a second coil and a third coil arranged on the first movable part, wherein the second magnet and the second coil can be configured to move the second movable part in a first direction perpendicular to the optical axis direction, and the third magnet and the third coil can be configured to move the second movable part in a second direction perpendicular to the optical axis direction and the first direction.

[0037] The first ball may be configured to guide the second movable portion such that the second movable portion moves in the first direction and the second direction.

[0038] The lens driving apparatus may further include: a second ball disposed between the fixed portion and the first movable portion; and an elastic member configured to press the second ball between the fixed portion and the first movable portion.

[0039] The lens driving apparatus may include a first buffer member disposed on an upper surface of the base, wherein at least a portion of the first buffer member may be disposed between the preload member and the base in an optical axis direction.

[0040] The lens driving device may include a second buffer member arranged on a cover, wherein the cover may include an upper plate and a side plate, and the second buffer member may be arranged on the upper plate of the cover so that at least a portion of the second buffer member is arranged between the upper plate of the cover and the first movable portion in the optical axis direction.

[0041] The lens driving device may include a third buffer member arranged on the first movable part, wherein the first movable part may include a retainer member and a cover plate (lid) coupled to the upper side of the retainer member, and the third buffer member may be arranged on the bottom surface of the cover plate, so that at least a portion of the third buffer member is arranged between the cover plate and the second movable part in the direction of the optical axis.

[0042] The camera device according to the present embodiment may include: a printed circuit board; an image sensor provided on the printed circuit board; a lens driving device provided on the printed circuit board; and a lens coupled to the lens driving device.

[0043] The optical apparatus according to the present embodiment may include a main body; a camera device provided on the main body; and a display provided in the main body to output one or more of a video and an image captured by the camera device.

[0044] Beneficial effects

[0045] According to the present embodiment, current consumption for performing the autofocus function can be reduced by providing the coil, which is lighter than the magnet, on the movable portion.

[0046] In addition, since the guide structure for OIS-x-axis driving and the guide structure for OIS-y-axis driving are integrated with each other, the height of the lens driving apparatus in the optical axis direction can be minimized.

[0047] Therefore, the height of the camera device protruding from the smartphone can be minimized. Alternatively, the camera device may not protrude from the smartphone.

[0048] Furthermore, since the centering force in the optical axis direction generated when the ball is pressed by the yoke and the magnet is eliminated, that is, there is no force urging the ball to return to the centered position, the current consumption during the AF operation can be reduced even slightly, and the accuracy of the AF operation can be improved. Here, the centering force can be replaced by one or more of a force for returning to the initial position, a restoring force, a recovery force, and a return force.

[0049] Additionally, in this embodiment, the ball guide structure may be provided diagonally to prevent rotation and / or tilting of the movable portion.

[0050] In addition, in this embodiment, detachment or damage to the structure that guides the movement of the movable portion for the optical image stabilization function due to external impact or the like can be minimized.

[0051] In addition, in this embodiment, a stable bonding surface with the lens can be ensured by changing the stacking direction during the assembly process. More specifically, in this embodiment, the AF carrier 210 can be stacked on the upper side of the base 110, the OIS bracket 310 can be stacked on the upper side of the AF carrier 210, and the lens can be stacked on the upper side of the AF carrier 210. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a conceptual diagram of the lens driving device according to this embodiment.

[0053] Figure 2 is a perspective view of the lens driving device according to the present embodiment.

[0054] Figure 3 It is along Figure 2A cross-sectional view taken along line AA.

[0055] Figure 4 It is along Figure 2 A cross-sectional view taken along line BB.

[0056] Figure 5 yes Figure 4 Magnified view of area F.

[0057] Figure 6 It is along Figure 2 A cross-sectional view taken along line CC.

[0058] Figure 7 yes Figure 6 Magnified view of region G.

[0059] Figure 8 It is along Figure 2 A cross-sectional view taken along line DD.

[0060] Figure 9 yes Figure 8 Magnified view of area H.

[0061] Figure 10 It is along Figure 2 A cross-sectional view taken along line EE.

[0062] Figure 11 is a cross-sectional view of the lens driving device according to the present embodiment, taken in a direction perpendicular to the optical axis.

[0063] Figure 12 is an exploded perspective view of the lens driving device according to the present embodiment.

[0064] Figure 13 According to this embodiment, Figure 12 Exploded perspective views of the lens driving device when viewed from different directions.

[0065] Figure 14 is a perspective view showing a state in which a cover is omitted in the lens driving device according to the present embodiment.

[0066] Figure 15 : is a perspective view showing a configuration related to a fixing portion of the lens driving device according to the present embodiment.

[0067] Figure 16a is a perspective view showing a configuration related to a movable portion of the lens driving device according to the present embodiment.

[0068] Figure 16b is a perspective view showing a coupling structure of an inner plate and an outer plate of the lens driving device according to the present embodiment.

[0069] Figure 16c: is a bottom perspective view showing a configuration related to a movable portion of the lens driving device according to the present embodiment.

[0070] Figure 16d is a bottom perspective view showing a coupling structure of an inner plate and an outer plate of the lens driving device according to the present embodiment.

[0071] Figure 17 It is shown in Figure 16a A perspective view of the state with the cover removed.

[0072] Figure 18a is shown with Figure 17 A perspective view of a state in which a configuration related to an OIS driver is removed.

[0073] Figure 18b It shows Figure 18a Exploded perspective view of the midline separation state.

[0074] Figure 19 is a perspective view showing a configuration related to an OIS driving section of the lens driving device according to the present embodiment.

[0075] Figure 20 Is when with Figure 19 Bottom-up perspective views when viewed from different directions.

[0076] Figure 21 Is when with Figure 16a Bottom-up perspective views when viewed from different directions.

[0077] Figure 22 It is shown in Figure 21 Bottom view of the state with the preload member and inner plate removed.

[0078] Figure 23 is a perspective view showing a coupling structure of an elastic member, a wire, and a metal member of the lens driving apparatus according to the present embodiment.

[0079] Figure 24 yes Figure 23 Magnified view of region I.

[0080] Figure 25 1 is a bottom perspective view showing a driving portion of the lens driving device according to the present embodiment.

[0081] Figure 26 is a cross-sectional perspective view illustrating a coupling structure of a wire and a preload member of the lens driving apparatus according to the present embodiment.

[0082] Figure 27 is a cross-sectional view illustrating a coupling structure of a wire and a preload member of the lens driving apparatus according to the present embodiment.

[0083] Figure 28 is a plan view showing a state in which a cover of the lens driving device according to the present embodiment is removed.

[0084] Figure 29 It is shown in Figure 28 A partially enlarged plan view showing the state where the cover is omitted.

[0085] Figure 30 is a perspective view showing a configuration related to a ball of the lens driving device according to the present embodiment.

[0086] Figure 31 is a perspective view showing a ball receiving structure of a base of the lens driving apparatus according to the present embodiment.

[0087] Figure 32 It is shown in Figure 31 A perspective view of a state in which a ball, a plate member, an elastic member, and a reinforcing member are provided.

[0088] Figure 33 Is when with Figure 32 Perspective drawings when viewed from different directions.

[0089] Figure 34 is a perspective view showing a movable portion and a ball of the lens driving apparatus according to the present embodiment.

[0090] Figure 35 Is with Figure 34 Perspective drawings when viewed from different directions.

[0091] Figure 36 (a) is a diagram comparing the heights of the ball and the pressing point when the movable part is moved upward. Figure 36 (b) is a diagram comparing the heights of the ball and the pressing point in a state where the movable portion has moved downward.

[0092] Figure 37 is a cross-sectional view of a lens driving device according to a modification.

[0093] Figure 38 is a perspective view showing a base and a base cushioning member of a lens driving apparatus according to a modified example.

[0094] Figure 39 is a perspective view illustrating a cover and a cover buffer member of a lens driving apparatus according to a modified example.

[0095] Figure 40 is a perspective view illustrating a cover and a cover buffer member of a lens driving apparatus according to a modification.

[0096] Figures 41 to 43 1 is a diagram for explaining autofocus driving of the lens driving device according to the present embodiment. Figure 41is a cross-sectional view showing the configuration of the movable portion in an initial state where no current is applied to the AF coil. Figure 42 It is a cross-sectional view showing a state in which a forward current is applied to the AF coil so that the movable portion moves upward in the optical axis direction. Figure 43 It is a cross-sectional view showing a state in which a reverse current is applied to the AF coil so that the movable portion moves downward in the optical axis direction.

[0097] Figures 44 to 46 : is a diagram for explaining optical image stabilization driving of the lens driving device according to the present embodiment. Figure 44 is a cross-sectional view showing the OIS movable portion in an initial state where no current is applied to the OIS-x coil and the OIS-y coil. Figure 45 : is a cross-sectional view showing a state in which the OIS movable portion moves in the x-axis direction perpendicular to the optical axis by applying a current to the OIS-x coil. Figure 46 : is a cross-sectional view showing a state in which the OIS movable portion moves in the y-axis direction perpendicular to the optical axis and the x-axis by applying a current to the OIS-x coil.

[0098] Figure 47 is an exploded perspective view of the camera device according to this embodiment.

[0099] Figure 48 is a perspective view of the optical device according to this embodiment.

[0100] Figure 49 is a perspective view showing a modified example of the optical device. DETAILED DESCRIPTION

[0101] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0102] However, the technical concept of the present disclosure is not limited to the described embodiments, but can be implemented in various forms, and even within the scope of the technical concept of the present disclosure, one or more of the components in the embodiments can be selectively combined or used in place of each other.

[0103] In addition, unless explicitly and specifically defined and described otherwise, the terms (including technical terms and scientific terms) used in the embodiments of the present disclosure may be interpreted as having meanings that are generally understood by ordinary technicians in the technical field to which the present disclosure belongs, and commonly used terms (such as terms defined in dictionaries) may be interpreted in consideration of the contextual meaning of the relevant technology.

[0104] In addition, the terms used in the embodiments of the present disclosure are for the purpose of describing the embodiments and are not intended to limit the present disclosure.

[0105] In this specification, unless specifically stated otherwise in a phrase, the singular may also include the plural, and when it is described as "A" and B, C (at least one of A or B, C)", it may include one or more of all combinations that can be combined with A, B, C.

[0106] In addition, when describing the components of the embodiments of the present disclosure, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish one component from another, and are not intended to limit the nature, order, or sequence of the components.

[0107] In addition, when a component is described as being “connected,” “combined” or “linked” to another component, it may include not only a case where the component is directly “connected,” “combined” or “linked” to other components, but also a case where the component is “connected,” “combined” or “linked” via another component between the component and other components.

[0108] In addition, when described as being formed or arranged “above (upper part)” or “below (lower part)” of each component, “above (upper part)” or “below (lower part)” includes not only a case where the two components are in direct contact with each other, but also a case where one or more other components are formed or arranged between the two components. In addition, when expressed as “above (upper part)” or “below (lower part)”, it can include not only a meaning in an upward direction based on one component, but also a meaning in a downward direction based on one component.

[0109] The "optical axis" used below (see Figure 41 The “direction (reference symbol OA)” is defined as the optical axis direction of the lens and / or image sensor coupled to the lens driving device.

[0110] The "vertical direction" used below may be a direction parallel to the optical axis or the same direction as the optical axis. The vertical direction may correspond to the "z-axis direction." The "horizontal direction" used below may refer to a direction perpendicular to the vertical direction. Here, the horizontal direction may be a direction perpendicular to the optical axis. Therefore, the horizontal direction may include the "x-axis direction" and the "y-axis direction."

[0111] 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”.

[0112] The term "autofocus (AF) function" used below can be defined as a function that automatically focuses on a subject by adjusting the distance from the image sensor by moving the lens along the optical axis according to the distance to the subject, thereby obtaining a clear image of the subject on the image sensor. Furthermore, "closed-loop autofocus (CLAF) control" is defined as a function that controls the position of the lens by detecting the distance between the image sensor and the lens, providing real-time feedback to improve the accuracy of focus adjustment.

[0113] The term "Optical Image Stabilization (OIS)" used below is defined as a function that moves or tilts the lens perpendicular to the optical axis to offset hand tremors, thereby preventing shaky images or videos caused by user hand tremors. Furthermore, "Closed-Loop Autofocus (CLAF)" is defined as the ability to detect the position of the lens relative to the image sensor and control the lens position in real time to improve image stabilization accuracy.

[0114] Hereinafter, one of the “AF movable portion 200 ” and the “OIS movable portion 300 ” may be referred to as a “first movable portion”, and the other may be referred to as a “second movable portion”.

[0115] Hereinafter, one of the “AF driving section” and the “OIS driving section” may be referred to as a “first driving section”, and the other may be referred to as a “second driving section”.

[0116] Hereinafter, one of the “AF driving section”, “OIS-x driving section” and “OIS-y driving section” may be referred to as a “first driving section”, another may be referred to as a “second driving section”, and another may be referred to as a “third driving section”.

[0117] Hereinafter, one of the “AF magnet 410 ,” the “OIS-x magnet 510 ,” and the “OIS-y magnet 610 ” may be referred to as a “first magnet,” another may be referred to as a “second magnet,” and still another may be referred to as a “third magnet.”

[0118] Hereinafter, one of the “AF coil 420 ,” the “OIS-x coil 520 ,” and the “OIS-y coil 620 ” may be referred to as a “first coil,” another may be referred to as a “second coil,” and still another may be referred to as a “third coil.”

[0119] Hereinafter, one of the “outer plate 710 ” and the “inner plate 720 ” may be referred to as a “first plate”, and the other may be referred to as a “second plate”.

[0120] Hereinafter, one of the “AF guide ball 810 ” and the “OIS guide ball 820 ” may be referred to as a “first ball”, and the other may be referred to as a “second ball”.

[0121] Hereinafter, one of the “holder member 220” and the “preload member 230” may be referred to as the “first member,” and the other may be referred to as the “second member.” Alternatively, hereinafter, one of the “holder member 220” and the “preload member 230” may be referred to as the “first housing,” and the other may be referred to as the “second housing.”

[0122] Hereinafter, one of the “AF sensor 430 ,” the “OIS-x sensor 530 ,” and the “OIS-y sensor 630 ” may be referred to as a “first sensor,” another may be referred to as a “second sensor,” and still another may be referred to as a “third sensor.”

[0123] Hereinafter, one of the “AF yoke 440 ,” “OIS-x yoke 540 ,” and “OIS-y yoke 640 ” may be referred to as a “first yoke,” another may be referred to as a “second yoke,” and still another may be referred to as a “third yoke.”

[0124] Hereinafter, one of the “base buffer member 960 ,” the “cover buffer member 970 ,” and the “cover buffer member 980 ” may be referred to as a “first buffer member,” another may be referred to as a “second buffer member,” and still another may be referred to as a “third buffer member.”

[0125] Hereinafter, one of the individual balls of the AF guide ball 810 and the OIS guide ball 820 may be referred to as a "first unit ball," another as a "second unit ball," another as a "third unit ball," and yet another as a "fourth unit ball." Furthermore, the term "nth unit ball" may be used to refer to an individual ball, such as a "fifth unit ball," a "sixth unit ball," and the like.

[0126] Hereinafter, one of the “pillar portion 111 ” and the “outer wall portion 112 ” may be referred to as a “first portion”, and the other may be referred to as a “second portion”.

[0127] Hereinafter, one of the “inner groove 111 - 1 ” and the “outer groove 112 - 1 ” may be referred to as a “first groove”, and the other may be referred to as a “second groove”.

[0128] Hereinafter, one of the “inner groove 224 - 1 ” and the “outer groove 224 - 2 ” may be referred to as a “first groove”, and the other may be referred to as a “second groove”.

[0129] Hereinafter, one of the “inner ball 811 ” and the “outer ball 812 ” may be referred to as a “first unit ball”, and the other may be referred to as a “second unit ball”.

[0130] Hereinafter, one of the “uppermost inner ball 811 - 1 ” and the “uppermost outer ball 812 - 1 ” may be referred to as a “first uppermost ball”, and the other may be referred to as a “second uppermost ball”.

[0131] Hereinafter, one of the “lowermost inner ball 811 - 2 ” and the “lowermost outer ball 812 - 2 ” may be referred to as a “first lowermost ball”, and the other may be referred to as a “second lowermost ball”.

[0132] Hereinafter, one of the “upper bend 921 ,” “lower bend 922 ,” and “connecting bend 923 ” may be referred to as a “first bend,” another may be referred to as a “second bend,” and another may be referred to as a “third bend.”

[0133] Hereinafter, the “AF bracket 210 ” may be referred to as a “housing.” Hereinafter, the “OIS bracket 310 ” may be referred to as a “bobbin.”

[0134] Hereinafter, the configuration of the lens driving device according to the present embodiment is described with reference to the drawings.

[0135] Figure 1 is a conceptual diagram of the lens driving device according to this embodiment. Figure 2 is a perspective view of the lens driving device according to the present embodiment. Figure 3 It is along Figure 2 A cross-sectional view taken along line AA. Figure 4 It is along Figure 2 A cross-sectional view taken along line BB. Figure 5 yes Figure 4 Magnified view of area F. Figure 6 It is along Figure 2 A cross-sectional view taken along line CC. Figure 7 yes Figure 6 Magnified view of region G. Figure 8 It is along Figure 2 A cross-sectional view taken along line DD. Figure 9 yes Figure 8 Magnified view of area H. Figure 10 It is along Figure 2 A cross-sectional view taken along line EE. Figure 11 is a cross-sectional view of the lens driving device according to the present embodiment, taken in a direction perpendicular to the optical axis. Figure 12 is an exploded perspective view of the lens driving device according to the present embodiment. Figure 13 According to this embodiment, Figure 12 Exploded perspective views of the lens driving device when viewed from different directions. Figure 14 is a perspective view showing a state in which a cover is omitted in the lens driving device according to the present embodiment. Figure 15: is a perspective view showing a configuration related to a fixing portion of the lens driving device according to the present embodiment. Figure 16a is a perspective view showing a configuration related to a movable portion of the lens driving device according to the present embodiment. Figure 16b is a perspective view showing a coupling structure of an inner plate and an outer plate of the lens driving device according to the present embodiment. Figure 16c : is a bottom perspective view showing a configuration related to a movable portion of the lens driving device according to the present embodiment.

[0136] Figure 16d is a bottom perspective view showing a coupling structure of an inner plate and an outer plate of the lens driving device according to the present embodiment. Figure 17 16 is a perspective view showing a state where the cover plate is removed. Figure 18a is shown with Figure 17 A perspective view of a state in which a configuration related to an OIS driver is removed. Figure 18b It shows Figure 18a Exploded perspective view of the state where the center line is separated. Figure 19 is a perspective view showing a configuration related to an OIS driving section of the lens driving device according to the present embodiment. Figure 20 Is when with Figure 19 Bottom-up perspective views when viewed from different directions. Figure 21 Is when with Figure 16a Bottom-up perspective views when viewed from different directions. Figure 22 It is shown in Figure 21 Bottom view of the state with the preload member and inner plate removed. Figure 23 is a perspective view showing a coupling structure of an elastic member, a wire, and a metal member of the lens driving apparatus according to the present embodiment. Figure 24 yes Figure 23 Magnified view of region I. Figure 25 1 is a bottom perspective view showing a driving portion of the lens driving device according to the present embodiment. Figure 26 is a cross-sectional perspective view illustrating a coupling structure of a wire and a preload member of the lens driving apparatus according to the present embodiment. Figure 27 is a cross-sectional view illustrating a coupling structure of a wire and a preload member of the lens driving apparatus according to the present embodiment. Figure 28 is a plan view showing a state in which a cover of the lens driving device according to the present embodiment is removed. Figure 29 It is shown in Figure 28 A partially enlarged plan view showing the state where the cover is omitted. Figure 30 is a perspective view showing a configuration related to a ball of the lens driving device according to the present embodiment. Figure 31 is a perspective view showing a ball receiving structure of a base of the lens driving apparatus according to the present embodiment. Figure 32 It is shown in Figure 31A perspective view of a state in which a ball, a plate member, an elastic member, and a reinforcing member are provided. Figure 33 Is when with Figure 32 Perspective images when viewed from different directions.

[0137] Figure 34 is a perspective view showing a movable portion and a ball of the lens driving apparatus according to the present embodiment. Figure 35 Is with Figure 34 Perspective images when viewed from different directions. Figure 36 (a) is a diagram comparing the heights of the ball and the pressing point in a state where the movable portion moves upward, and Figure 36 (b) is a diagram comparing the heights of the ball and the pressing point in a state where the movable portion has moved downward.

[0138] 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.

[0139] The lens driving device 10 may include a fixing portion 100. The fixing portion 100 may be a portion that is relatively fixed when the movable portion moves. The movable portion may move relative to the fixing portion 100.

[0140] The lens driving device 10 may include a base 110. The fixing portion 100 may include the base 110. The base 110 may be disposed below the AF bracket 210. The base 110 may be disposed below the OIS bracket 310. The base 110 may be coupled to the cover 120. The AF bracket 210 and the OIS bracket 310 may be disposed on the base 110. The AF bracket 210 and the OIS bracket 310 may be disposed on a lower plate of the base 110. The AF bracket 210 and the OIS bracket 310 may be disposed within the base 110. The AF bracket 210 and the OIS bracket 310 may be disposed within a sidewall of the base 110.

[0141] The base 110 may include a lower plate. The lower plate of the base 110 may support the bottom surface of the AF movable part 200. The lower plate of the base 110 may support the bottom surface of the AF bracket 210.

[0142] The base 110 may include a support portion 111 . The support portion 111 may extend from the upper surface of the lower plate and may be disposed inside the outer wall portion 112 .

[0143] The base 110 may include a first guide portion that guides the movement of the AF guide ball 810. The first guide portion may include an inner groove 111-1 of the base 110. The first guide portion may include an outer groove 112-1 of the base 110.

[0144] The base 110 may include an inner groove 111-1. The support portion 111 may include the inner groove 111-1. The inner groove 111-1 may be formed in the support portion 111. The inner groove 111-1 may be an "AF guide ball accommodating groove." The AF guide ball 810 may be disposed in the inner groove 111-1. The inner ball 811 may be disposed in the inner groove 111-1. The inner groove 111-1 may be in direct contact with the AF guide ball 810. The inner groove 111-1 may be disposed in the direction of the optical axis. The inner groove 111-1 may include a plurality of grooves. The inner groove 111-1 may include two grooves. The two grooves may be disposed parallel to each other. The two grooves may be disposed diagonally relative to the optical axis.

[0145] The base 110 may include a stepped protrusion 111-2. The stepped protrusion 111-2 may be provided on the support column 111. The plate member 910 may be provided on the stepped protrusion 111-2.

[0146] The base 110 may include an outer wall portion 112. The outer wall portion 112 may be a "side portion." The outer wall portion 112 may be a "side panel." The outer wall portion 112 may be a "side wall." The outer wall portion 112 of the base 110 may extend from the upper surface of the lower plate.

[0147] The base 110 may include an outer groove 112-1. The outer wall portion 112 may include the outer groove 112-1. The outer groove 112-1 may be formed to face the inner groove 111-1. The outer groove 112-1 may be arranged to face the inner groove 111-1. The outer groove 112-1 may be an "AF guide ball accommodating groove." The AF guide ball 810 may be disposed in the outer groove 112-1. The outer ball 812 may be disposed in the outer groove 112-1. The outer groove 112-1 may be in direct contact with the AF guide ball 810. The outer groove 112-1 may be arranged in the direction of the optical axis. The outer groove 112-1 may include a plurality of grooves. The outer groove 112-1 may include two grooves. The two grooves may be arranged parallel to each other. The two grooves may be arranged diagonally relative to the optical axis. The outer groove 112-1 may be arranged opposite the inner groove 111-1. The outer groove 112-1 may have a shape corresponding to the shape of the inner groove 111-1. The outer groove 112 - 1 and the inner groove 111 - 1 may have the same length in the optical axis direction.

[0148] The base 110 may include a protrusion 114. The protrusion 114 may protrude outward. The connection portion 712 of the outer panel 710 may be provided on each of the upper and lower sides of the protrusion 114. A groove may be formed in the protrusion 114 so as not to interfere with the connection portion 712 of the outer panel 710 even when moving.

[0149] The base 110 may include a step portion. The step portion may be provided at a lower end of an outer surface of the base 110. The step portion may protrude from the outer surface of the base 110. The side plate 122 of the cover 120 may be provided on the step portion of the base 110.

[0150] The lens driving device 10 may include a cover 120. The fixing portion 100 may include the cover 120. The cover 120 may be disposed on the base 110. The cover 120 may be coupled to the base 110. The cover 120 may be fixed to the base 110. The cover 120 may accommodate the AF bracket 210 therein. The cover 120 may accommodate the OIS bracket 310 therein. The cover 120 may be a shielding member. The cover 120 may be a shielding can.

[0151] The cover 120 may include an upper plate 121. The upper plate 121 may be disposed on the movable portion. Upward movement of the movable portion may be restricted by the movable portion contacting the upper plate 121. The upper plate 121 may include a hole through which light passes.

[0152] The cover 120 may include a side panel 122. The side panel 122 may extend from the upper panel 121. The side panel 122 may be disposed on the base 110. The side panel 122 may be disposed on a stepped portion protruding from the lower end of the outer surface of the base 110. The side panel 122 may include a plurality of side panels. The side panel 122 may include four side panels. The side panels 122 may include a first side panel and a second side panel disposed opposite each other, and a third side panel and a fourth side panel disposed opposite each other.

[0153] The lens driving device 10 may include a movable portion. The movable portion may be disposed on the fixed portion 100. The movable portion may be disposed within the fixed portion 100. The movable portion may be disposed on the fixed portion 100. The movable portion may be movably disposed on the fixed portion 100. The movable portion may be movable relative to the fixed portion 100 by the driving portion. The movable portion may move during AF driving. The movable portion may move during OIS driving. A lens may be coupled to the movable portion.

[0154] The lens driving device 10 may include an AF movable section 200. The AF movable section 200 may be provided in the fixed section 100. The AF movable section 200 may be provided within the fixed section 100. The AF movable section 200 may be provided on the fixed section 100. The AF movable section 200 may be provided between the fixed section 100 and the OIS movable section 300. The AF movable section 200 may be movably provided on the fixed section 100. The AF movable section 200 may be moved relative to the fixed section 100 in the optical axis direction by the AF driving section 400. The AF movable section 200 may move during AF driving.

[0155] In a modification, the AF movable portion 200 and the AF driving portion 400 may be omitted. That is, the OIS movable portion 300 may be provided on the fixed portion 100. Alternatively, the OIS movable portion 300 may be provided on the fixed portion 100, and the AF movable portion 200 may be provided inside the OIS movable portion 300.

[0156] The lens driving device 10 may include an AF bracket 210. The AF movable portion 200 may include the AF bracket 210. The AF bracket 210 may be an "AF holder." The AF bracket 210 may be a "housing." The AF bracket 210 may be disposed within the base 110. The AF bracket 210 may be disposed on the base 110. The AF bracket 210 may be disposed within the cover 120. The AF bracket 210 may be disposed between the base 110 and the OIS bracket 310. The AF bracket 210 may be configured to be movable in the optical axis direction.

[0157] The AF bracket 210 may include a frame, a first upper plate, and a second upper plate. Here, the frame may be a main body. The frame may be a retaining member 220. The first upper plate may be a metal member 225. The second plate may be a preload member 230. The AF bracket 210 may be a housing. The housing may include a first housing and a second housing. Here, the first housing may include the retaining member 220, and the second housing may include the preload member 230. The OIS bracket 310 may be a bobbin. The OIS guide ball 820 may be disposed between the housing and the bobbin. The AF guide ball 810 may be disposed between a side of the housing and the cover 120. The AF guide ball 810 may be disposed between a side of the housing and the base or a support of the base.

[0158] The lens driving apparatus 10 may include a holder member 220. The AF bracket 210 may include the holder member 220. The holder member 220 may be provided separately from the preloading member 230. The wire 850 may be coupled to the holder member 220.

[0159] The AF bracket 210 may include a lower plate. The lower plate may be disposed below the OIS bracket 310. The lower plate may be disposed between the OIS bracket 310 and the base 110.

[0160] The AF bracket 210 may include a groove 222. The groove 222 may be a "preloading member through hole". The retainer member 220 may include a groove 222. The lower plate of the retainer member 220 may include a groove 222. The groove 220 may be formed in the lower plate of the retainer member 220. The groove 222 may be open inward. The preloading member 230 may be inserted into the groove 222. The protrusion 231 of the preloading member 230 may be inserted into the groove 222. The groove 222 may be formed as a hole. The groove 222 may be replaced by a hole. That is, as a modified example, the AF bracket 210 may include a groove 222 into which the protrusion 231 of the preloading member 230 is inserted.

[0161] The AF bracket 210 may include a sidewall. The sidewall may extend downward from the upper plate. The inner plate 720 may be disposed on the sidewall. The AF coil 420 may be disposed on the sidewall. The OIS-x coil 520 may be disposed on the sidewall. The OIS-y coil 620 may be disposed on the sidewall. The sidewall may include a groove to provide a clearance for the coil. The sidewall may include multiple sidewalls. The sidewall may include four sidewalls. The sidewall may include a first sidewall and a second sidewall disposed opposite each other, and a third sidewall and a fourth sidewall disposed opposite each other.

[0162] The AF bracket 210 may include a second guide portion that guides the movement of the AF guide ball 810. The second guide portion may include an inner groove 224-1 of the AF bracket 210. The second guide portion may include an outer groove 224-2 of the AF bracket 210.

[0163] The AF bracket 210 may include an inner groove 224-1. The retainer member 220 may include an inner groove 224-1. The inner groove 224-1 may be an "AF guide ball accommodating groove." The AF guide ball 810 may be disposed in the inner groove 224-1. The inner ball 811 may be disposed in the inner groove 224-1. The inner groove 224-1 may be in direct contact with the AF guide ball 810. The inner groove 224-1 may be disposed in the direction of the optical axis. The inner groove 224-1 may guide the AF guide ball 810 to move in the direction of the optical axis. The inner groove 224-1 may include a plurality of grooves. The inner groove 224-1 may include two grooves. The two grooves may be disposed parallel to each other. The two grooves may be disposed diagonally relative to the optical axis.

[0164] The AF bracket 210 may include an outer groove 224-2. The holder member 220 may include an outer groove 224-2. The outer groove 224-2 may be an "AF guide ball accommodating groove." The AF guide ball 810 may be disposed in the outer groove 224-2. The outer ball 812 may be disposed in the outer groove 224-2. The outer groove 224-2 may be in direct contact with the AF guide ball 810. The outer groove 224-2 may be disposed in the optical axis direction. The outer groove 224-2 may guide the AF guide ball 810 to move in the optical axis direction. The outer groove 224-2 may include a plurality of grooves. The outer groove 224-2 may include two grooves. The two grooves may be disposed parallel to each other. The two grooves may be disposed diagonally relative to the optical axis. The outer groove 224-2 may be disposed opposite the inner groove 224-1. The outer groove 224-2 may have a shape corresponding to that of the inner groove 224-1. The outer groove 224 - 2 and the inner groove 224 - 1 may have the same length in the optical axis direction.

[0165] The AF bracket 210 may include a metal member 225. The holder member 220 may include the metal member 225. The holder member 220 may include a lower plate having the metal member 225. The metal member 225 may be disposed on the holder member 220. The metal member 225 may be insert-injected into the holder member 220. At least a portion of the metal member 225 may be disposed on the top surface of the holder member 220. The metal member 225 may be provided to enhance the strength of the holder member 220.

[0166] The metal member 225 may include a hole. The wire 850 may be disposed in the hole. The wire 850 may pass through the hole of the metal member 225.

[0167] The metal member 225 may include a first hole 225-1. The first hole 225-1 may be disposed adjacent to the wire 850. The first hole 225-1 may be disposed adjacent to the hole through which the wire 850 passes. The first hole 225-1 may be disposed adjacent to a conductive member that couples the wire 850 to the metal member 225. The conductive member that couples the wire 850 to the metal member 225 may be introduced into the first hole 225-1. Solder that couples the wire 850 to the metal member 225 may be introduced into the first hole 225-1. The first hole 225-1 may be configured to have a curvature. When viewed from below, the first hole 225-1 may have a U-shape. When viewed from below, the first hole 225-1 may include a curved shape.

[0168] The metal member 225 may include a second hole 225-2. The second hole 225-2 may be disposed adjacent to the wire 850. The second hole 225-2 may be disposed adjacent to the hole through which the wire 850 passes. The second hole 225-2 may be disposed adjacent to a conductive member that couples the wire 850 to the metal member 225. The conductive member that couples the wire 850 to the metal member 225 may be introduced into the second hole 225-2. The second hole 225-2 may be disposed on an opposite side of the first hole 225-1 relative to the wire 850. The second hole 225-2 may be disposed on an opposite side of the first hole 225-1 relative to the hole in the metal member 225 in which the wire 850 is disposed. Solder that couples the wire 850 to the metal member 225 may be introduced into the second hole 225-2. The second hole 225-2 may extend straight.

[0169] The AF bracket 210 may include a protrusion 226. The holder member 220 may include the protrusion 226. The protrusion 226 may be provided on an outer surface of the AF bracket 210. The protrusion 226 may protrude outward from the AF bracket 210. The connection portion 712 may be provided on each of the upper and lower surfaces of the protrusion 226.

[0170] The lens driving device 10 may include a preloading member 230. The AF bracket 210 may include a preloading member 230. The preloading member 230 may be coupled to the upper surface of the retainer member 220. The preloading member 230 may be coupled to the retainer member 220. The preloading member 230 may be inserted from the upper side and then coupled to the retainer member 220. The preloading member 230 may press the OIS guide ball 820. The preloading member 230 may contact the OIS guide ball 820. The preloading member 230 may directly contact the OIS guide ball 820. The preloading member 230 may be coupled to the retainer member 220 to press the OIS guide ball 820. The preloading member 230 may press a portion of the elastic member 830 by contacting the OIS guide ball 820.

[0171] The preloading member 230 may be provided between the AF movable portion 200 and the base 110 in the optical axis direction. The preloading member 230 may be provided between the AF movable portion 200 and the base 110. The preloading member 230 may be provided between the AF bracket 210 and the base 110.

[0172] The AF bracket 210 may include a protrusion 231. The preload member 230 may include the protrusion 231. The protrusion 231 may be a "bump". The preload member 230 may have a protrusion 231 that guides the OIS guide ball 820. The protrusion 231 may be coupled to the groove 222 of the holder member 220. The protrusion 231 of the preload member 230 may be inserted into the groove 222 of the holder member 220 from the lower side. The protrusion 231 of the preload member 230 may be disposed in the groove 222 of the holder member 220. At least a portion of the protrusion 231 of the preload member 230 may be disposed in the groove 222 of the holder member 220. The protrusion 231 may include a plurality of protrusions. The protrusion 231 may include four protrusions.

[0173] The AF bracket 210 may include a groove 232. The preload member 230 may include a groove 232. The groove 232 may be an "OIS guide ball accommodating groove." The groove 232 may be formed in the protrusion 231. The groove 232 may be formed in the upper surface of the protrusion 231. The groove 232 may be formed at the end of the protrusion 231. The groove 232 may be concavely formed in the top surface of the protrusion 231. The OIS guide ball 820 may be disposed in the groove 232. The OIS guide ball 820 may be in contact with the groove 232.

[0174] The preloading member 230 may include a body portion 233. The body portion 233 may be combined with the holder member 220. The body portion 233 may be provided on a bottom surface of the holder member 220. The protrusion 231 may protrude upward from the body portion 233.

[0175] The lens driving device 10 may include a cover plate 240. The AF movable portion 200 may include the cover plate 240. The cover plate 240 may be coupled to the AF bracket 210. The cover plate 240 may be coupled to the upper surface of the AF bracket 210. The cover plate 240 may be coupled to the AF bracket 210 from the upper side. The cover plate 240 may be coupled to the upper side of the holder member 220. The cover plate 240 may include a hook portion. The hook portion of the cover plate 240 may be coupled to the AF bracket 210. The hook portion of the cover plate 240 may protrude downward and may be coupled to the side of the AF bracket 210.

[0176] The lens driving device 10 may include an OIS movable portion 300. The OIS movable portion 300 may be provided at the fixed portion 100. The OIS movable portion 300 may be provided within the fixed portion 100. The OIS movable portion 300 may be provided on the fixed portion 100. The OIS movable portion 300 may be provided within the AF movable portion 200. The OIS movable portion 300 may be provided to be movable. The OIS movable portion 300 may be moved in a direction perpendicular to the optical axis relative to the fixed portion 100 and the AF movable portion 200 by the OIS driving portion. The OIS movable portion 300 may be moved in the x-axis direction by the OIS-x driving portion 500. The OIS movable portion 300 may be moved in the y-axis direction by the OIS-y driving portion 600. The OIS movable portion 300 may move during OIS driving.

[0177] The lens driving device 10 may include an OIS bracket 310. The OIS movable portion 300 may include the OIS bracket 310. The OIS bracket 310 may be an "OIS holder." The OIS bracket 310 may be a "spool." The OIS bracket 310 may be disposed within the AF bracket 210. The OIS bracket 310 may be disposed within the base 110. The OIS bracket 310 may be disposed on the base 110. The OIS bracket 310 may be disposed within the cover 120. The OIS bracket 310 may be configured to be movable in a direction perpendicular to the optical axis.

[0178] The OIS bracket 310 may include an outer surface. The OIS bracket 310 may include a plurality of side surfaces. The OIS bracket 310 may include a first side surface and a second side surface disposed opposite each other, and a third side surface and a fourth side surface disposed opposite each other. The AF coil 420 may be disposed between the first side surface of the OIS bracket 310 and the AF magnet 410. The OIS-x magnet 510 may be disposed on the third side surface of the OIS bracket 310. The OIS-y magnet 610 may be disposed on the second side surface of the OIS bracket 310.

[0179] The OIS holder 310 may include a groove. The groove may be an "elastic member interference prevention groove." The groove may be formed in the upper surface of the OIS holder 310. The groove may be concavely formed in the upper surface of the OIS holder 310. The groove may be provided at a position corresponding to the elastic member 830 to prevent interference between the OIS holder 310 and the elastic member 830.

[0180] The OIS bracket 310 may include a groove 311. The groove 311 may be an "OIS guide ball accommodating groove". The OIS guide ball 820 may be disposed in the groove 311. The groove 311 may be in direct contact with the OIS guide ball 820. The groove 311 may be concavely formed in the bottom surface of the OIS movable part 300. The groove 311 may be concavely formed in the bottom surface of the OIS bracket 310. The groove 311 may be formed in a direction perpendicular to the optical axis. The groove 311 may be concave in the direction of the optical axis. The groove 311 may include a plurality of grooves. The groove 311 may include four grooves. The groove 311 may be formed in the bottom surface of the OIS bracket 310.

[0181] The OIS bracket 310 may include side stoppers. The side stoppers may limit the lateral travel of the OIS bracket 310. Specifically, when the OIS bracket 310 is moved to its maximum extent, the side stoppers of the OIS bracket 310 may contact at least one of the AF bracket 210 or the base 110. The side stoppers may be provided on an outer surface of the OIS bracket 310. The side stoppers may protrude outward from the sides of the OIS bracket 310.

[0182] The OIS holder 310 may include a protrusion 312. The protrusion 312 may be coupled to the elastic member 830. The protrusion 312 may be a "coupling protrusion." The elastic member 830 may include a hole into which the protrusion 312 of the OIS holder 310 is inserted. The protrusion 312 may be provided on the upper surface of the OIS holder 310.

[0183] The OIS holder 310 may include a groove 313. The groove 313 may be a "lens adhesive receiving groove." The groove 313 may be formed in the inner surface of the OIS holder 310. The groove 313 may be formed concavely in the inner surface of the OIS holder 310. Adhesive may be injected between the lens and the OIS holder 310 through the groove 313. Adhesive for bonding the lens to the OIS holder 310 may be disposed in the groove 313.

[0184] The OIS bracket 310 may include a mounting portion. The mounting portion may be a "magnet mounting portion." The magnets 510 and 620 may be disposed in the mounting portion. For example, the mounting portion may be configured as a groove.

[0185] The lens driving device 10 may include a driving unit. The driving unit may move the movable portion relative to the fixed portion 100. The driving unit may include an AF driving unit 400. The driving unit may include an OIS driving unit. The driving unit may include an OIS-x driving unit 500. The driving unit may include an OIS-y driving unit 600. The driving unit may include a coil and a magnet.

[0186] The lens driving device 10 may include an AF driving unit 400. The AF driving unit 400 may move the AF movable unit 200 in the optical axis direction. The AF driving unit 400 may move the AF bracket 210 in the optical axis direction. The AF driving unit 400 may move the AF bracket 210 in the optical axis direction using electromagnetic force. The AF driving unit 400 may include a coil and a magnet.

[0187] In this embodiment, the AF bracket 210 and the OIS bracket 310 can move in the optical axis direction by interaction between the AF coil 420 and the AF magnet 410. The AF coil 420, the AF bracket 210, and the OIS bracket 310 can move integrally in the optical axis direction.

[0188] The lens driving device 10 may include an AF magnet 410. The AF driving portion 400 may include the AF magnet 410. The AF magnet 410 may be an "AF magnet". The AF magnet 410 may be a permanent magnet. The AF magnet 410 may be disposed on the fixing portion 100. The AF magnet 410 may be disposed on the base 110. The AF magnet 410 may be disposed on the cover 120. The AF magnet 410 may be disposed on the side plate 122 of the cover 120. The AF magnet 410 may be disposed on the outer surface of the base 110. The AF magnet 410 may be disposed on the inner surface of the base 110. The AF magnet 410 may be fixed to the base 110. The AF magnet 410 may be bonded to the base 110. The AF magnet 410 may be bonded to the base 110 with an adhesive. The AF magnet 410 may be disposed inside the cover 120. The AF magnet 410 may interact with the AF coil 420. The AF magnet 410 may electromagnetically interact with the AF coil 420. The AF magnet 410 may be disposed at a position corresponding to the AF coil 420. The AF magnet 410 may face the AF coil 420. The AF magnet 410 may be opposite to the AF coil 420. The AF magnet 410 may overlap with the AF coil 420 in a direction perpendicular to the optical axis.

[0189] The AF magnet 410 may be a four-pole magnet. The AF magnet 410 may include a four-pole magnet. The AF magnet 410 may include a first magnet portion including an N pole and an S pole, and a second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged vertically. The first magnet portion and the second magnet portion may be spaced apart from each other in a vertical direction, and a neutral portion may be provided between the first magnet portion and the second magnet portion.

[0190] The lens driving device 10 may include an AF coil 420. The AF driving section 400 may have an AF coil 420. The AF coil 420 may interact with the AF magnet 410. The AF coil 420 may face the AF magnet 410. The AF coil 420 may face the AF magnet 410. The AF coil 420 may be disposed at a position corresponding to the AF magnet 410. The AF coil 420 may overlap with the AF magnet 410 in a direction perpendicular to the optical axis. The AF coil 420 may be disposed on the inner plate 720. The AF coil 420 may be disposed on the AF bracket 210. The AF coil 420 may be disposed in the AF movable section 200.

[0191] In this embodiment, the AF coil 420 can move in the optical axis direction. The AF coil 420 can move in the optical axis direction by interacting with the AF magnet 410. The AF coil 420 can move together with the AF movable part 200. The AF coil 420 can move in the optical axis direction together with the AF movable part 200. During AF driving, the AF coil 420 can move in the optical axis direction together with the AF movable part 200. The AF coil 420 can be set in the AF movable part 200. The AF coil 420 can be fixed to the AF movable part 200. The AF coil 420 can be coupled to the AF movable part 200.

[0192] The lens driving device 10 may include an AF sensor 430. The AF driving unit 400 may include the AF sensor 430. The AF sensor 430 may be a Hall sensor. The AF sensor 430 may be provided on the inner plate 720. The AF sensor 430 may detect the AF magnet 410. The AF sensor 430 may detect movement of the AF magnet 410. The movement amount or position of the AF magnet 410 detected by the AF sensor 430 may be used as feedback for an autofocus operation.

[0193] The AF sensor 430 may be a driver IC. The driver IC may include a sensing unit. The sensing unit may include a Hall element (Hall IC). The driver IC may be electrically connected to the AF coil 420. The driver IC may supply current to the AF coil 420.

[0194] The AF sensor 430 may be disposed inside the AF coil 420. The AF sensor 430 may overlap with the neutral portion of the AF magnet 410 in a direction perpendicular to the optical axis. As a modified example, the AF sensor 430 may be disposed outside the AF coil 420. The AF sensor 430 may overlap with the AF coil 420 in the direction of the optical axis. The AF sensor 430 may overlap with the AF coil 420 in a direction perpendicular to the optical axis.

[0195] The lens driving device 10 may include an AF yoke 440. The AF yoke 440 may be disposed at a position corresponding to the AF magnet 410. An attractive force may be applied between the AF yoke 440 and the AF magnet 410. The AF guide ball 810 may be maintained in contact with the base 110 and the AF bracket 210 by the attractive force between the AF yoke 440 and the AF magnet 410. The AF yoke 440 may be disposed on the inner plate 720. The AF yoke 440 may be disposed inside the AF coil 420.

[0196] The lens driving device 10 may include an AF attraction yoke 450. An attraction force may be applied between the AF attraction yoke 450 and the AF magnet 410. The AF attraction yoke 450 may be disposed inside the AF coil 420. The AF attraction yoke 450 may be disposed on the inner surface of the side plate 721 of the inner plate 720. The AF attraction yoke 450 may pull the AF magnet 410 inward.

[0197] The lens driving device 10 may include an OIS driving unit. The OIS driving unit may move the OIS movable unit 300 in a direction perpendicular to the optical axis. The OIS driving unit may move the OIS bracket 310 in a direction perpendicular to the optical axis. The OIS driving unit may move the OIS bracket 310 in a direction perpendicular to the optical axis using electromagnetic force.

[0198] The lens driving device 10 may include an OIS-x driving unit 500. The OIS-x driving unit 500 may move the OIS support 310 in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit 500 may move the OIS support 310 in the x-axis direction perpendicular to the optical axis using electromagnetic force. The OIS-x driving unit 500 may include a coil and a magnet.

[0199] In this embodiment, the OIS-x magnet 510 and the OIS-x coil 520 enable the OIS movable portion 300 to move in a first direction perpendicular to the optical axis. Here, the first direction may be the x-axis. Due to the interaction between the OIS-x coil 520 and the OIS-x magnet 510, the OIS holder 310 can move in the x-axis direction perpendicular to the optical axis. The OIS-x magnet 510 and the OIS holder 310 can move integrally in the x-axis direction.

[0200] The lens driving device 10 may include an OIS-x magnet 510. The OIS driving portion may include the OIS-x magnet 510. The OIS-x magnet 510 may be an "OIS-x magnet." The OIS-x magnet 510 may be a permanent magnet. The OIS-x magnet 510 may be disposed on the OIS movable portion 300. The OIS-x magnet 510 may be separate from the AF magnet 410. The OIS-x magnet 510 may be disposed on the OIS bracket 310. The OIS-x magnet 510 may be disposed on an outer surface of the OIS bracket 310. The OIS-x magnet 510 may be fixed to the OIS bracket 310. The OIS-x magnet 510 may be coupled to the OIS bracket 310. The OIS-x magnet 510 may be bonded to the OIS bracket 310 by an adhesive. The OIS-x magnet 510 may be disposed within the cover 120. The OIS-x magnet 510 may interact with the OIS-x coil 520. The OIS-x magnet 510 may electromagnetically interact with the OIS-x coil 520. The OIS-x magnet 510 may be disposed at a position corresponding to the OIS-x coil 520. The OIS-x magnet 510 may face the OIS-x coil 520. The OIS-x magnet 510 may be opposite the OIS-x coil 520. The OIS-x magnet 510 may overlap the OIS-x coil 520 in a direction perpendicular to the optical axis. The OIS-x magnet 510 may overlap the OIS-x coil 520 in the x-axis direction. The OIS-x magnet 510 may move in the x-axis direction perpendicular to the optical axis.

[0201] The OIS-x magnet 510 may be a two-pole magnet. The OIS-x magnet 510 may include a two-pole magnetized magnet. The OIS-x magnet 510 may include an N pole and an S pole.

[0202] The lens driving device 10 may include an OIS-x coil 520. The OIS driving unit may include the OIS-x coil 520. The OIS-x coil 520 may interact with the OIS-x magnet 510. The OIS-x coil 520 may move the OIS-x magnet 510 in the x-axis direction, which is perpendicular to the optical axis. The OIS-x coil 520 may interact with the OIS-x magnet 510 to move the OIS-x magnet 510 in the x-axis direction. The OIS-x coil 520 may face the OIS-x magnet 510. The OIS-x coil 520 may be opposite the OIS-x magnet 510. The OIS-x coil 520 may be disposed at a position corresponding to the OIS-x magnet 510. The OIS-x coil 520 may overlap the OIS-x magnet 510 in a direction perpendicular to the optical axis. The OIS-x coil 520 may be disposed on the inner plate 720. The OIS-x coil 520 may be disposed on the AF bracket 210.

[0203] In this embodiment, the OIS-x coil 520 can move together with the AF movable section 200. The OIS-x coil 520 can move together with the AF movable section 200 in the optical axis direction. During AF driving, the OIS-x coil 520 can move together with the AF movable section 200 in the optical axis direction. The OIS-x coil 520 can be provided on the AF movable section 200. The OIS-x coil 520 can be fixed to the AF movable section 200. The OIS-x coil 520 can be coupled to the AF movable section 200.

[0204] The lens driving device 10 may include an OIS-x sensor 530. The OIS driving unit may include the OIS-x sensor 530. The OIS-x sensor 530 may be disposed on the inner plate 720. The OIS-x sensor 530 may include a Hall sensor. The OIS-x sensor 530 may detect the OIS-x magnet 510. The OIS-x sensor 530 may detect the magnetic force of the OIS-x magnet 510. The OIS-x sensor 530 may be disposed below the OIS-x magnet 510. The OIS-x sensor 530 may overlap with the OIS-x magnet 510 in the optical axis direction. Alternatively, the OIS-x sensor 530 may be disposed within the OIS-x coil 520. The OIS-x sensor 530 may overlap with the OIS-x coil 520 in the optical axis direction. The OIS-x sensor 530 may overlap with the OIS-x coil 520 in a direction perpendicular to the optical axis. The OIS-x sensor 530 may face the OIS-x magnet 510. The OIS-x sensor 530 may be provided at a position corresponding to the OIS-x magnet 510. The OIS-x sensor 530 may detect movement of the OIS-x magnet 510. The movement amount or position of the OIS-x magnet 510 detected by the OIS-x sensor 530 may be used for feedback of optical image stabilization (OIS) driving in the x-axis direction.

[0205] The lens driving device 10 may include an OIS-x yoke 540. The OIS-x yoke 540 may be disposed on the OIS-x magnet 510. The OIS-x yoke 540 may be disposed between the OIS-x magnet 510 and the OIS bracket 310. The OIS-x yoke 540 may prevent magnetic flux leakage of the OIS-x magnet 510 and improve interaction with the OIS-x coil 520.

[0206] The lens driving device 10 may include an OIS-y driving unit 600. The OIS-y driving unit 600 may move the OIS support 310 in the y-axis direction, which is perpendicular to both the optical axis and the x-axis direction. The OIS-y driving unit 600 may move the OIS support 310 in the y-axis direction, which is perpendicular to both the optical axis and the x-axis direction, using electromagnetic force. The OIS-y driving unit 600 may include a coil and a magnet.

[0207] In this embodiment, the OIS-y magnet 610 and the OIS-y coil 620 can move the OIS movable portion 300 in a second direction perpendicular to the optical axis direction and the first direction. Here, the second direction can be the y-axis direction. Due to the interaction between the OIS-y coil 620 and the OIS-y magnet 610, the OIS bracket 310 can move in the y-axis direction perpendicular to both the optical axis direction and the x-axis direction. The OIS-y magnet 610 and the OIS bracket 310 can move integrally in the y-axis direction. The OIS-y magnet 610 can overlap with the AF magnet 410 in the second direction. The OIS-y magnet 610 can overlap with the AF magnet 410 in the y-axis direction.

[0208] The lens driving device 10 may include an OIS-y magnet 610. The OIS-y driving portion 600 may include the OIS-y magnet 610. The OIS-y magnet 610 may be an "OIS-y magnet". The OIS-y magnet 610 may be a permanent magnet. The OIS-y magnet 610 may be disposed on the OIS movable portion 300. The OIS-y magnet 610 may be separate from the OIS-x magnet 510. The OIS-y magnet 610 may be separate from the AF magnet 410. The OIS-y magnet 610 may be disposed on the OIS bracket 310. The OIS-y magnet 610 may be disposed on an outer surface of the OIS bracket 310. The OIS-y magnet 610 may be fixed to the OIS bracket 310. The OIS-y magnet 610 may be coupled to the OIS bracket 310. The OIS-y magnet 610 may be bonded to the OIS bracket 310 by an adhesive. The OIS-y magnet 610 may be disposed within the cover 120. The OIS-y magnet 610 can interact with the OIS-y coil 620. The OIS-y magnet 610 can electromagnetically interact with the OIS-y coil 620. The OIS-y magnet 610 can be disposed at a position corresponding to the OIS-y coil 620. The OIS-y magnet 610 can face the OIS-y coil 620. The OIS-y magnet 610 can be opposite to the OIS-y coil 620. The OIS-y magnet 610 can overlap with the OIS-y coil 620 in a direction perpendicular to the optical axis. The OIS-y magnet 610 can overlap with the OIS-y coil 620 in the y-axis direction. The OIS-y magnet 610 can move in the y-axis direction.

[0209] The OIS-y magnet 610 may be a two-pole magnet. The OIS-y magnet 610 may include a two-pole magnetized magnet. The OIS-y magnet 610 may include an N pole and an S pole.

[0210] The lens driving device 10 may include an OIS-y coil 620. The OIS-y driving unit 600 may include the OIS-y coil 620. The OIS-y coil 620 may interact with the OIS-y magnet 610. The OIS-y coil 620 may be positioned on the opposite side of the AF coil 420 relative to the optical axis. The OIS-y coil 620 may move the OIS-y magnet 610 in the y-axis direction, which is perpendicular to both the optical axis and the x-axis. The OIS-y coil 620 may interact with the OIS-y magnet 610 to move the OIS-y magnet 610 in the y-axis direction. The OIS-y coil 620 may face the OIS-y magnet 610. The OIS-y coil 620 may be opposite the OIS-y magnet 610. The OIS-y coil 620 may be positioned corresponding to the OIS-y magnet 610. The OIS-y coil 620 may overlap the OIS-y magnet 610 in a direction perpendicular to the optical axis. The OIS-y coil 620 may be disposed on the inner plate 720. The OIS-y coil 620 may be disposed on the AF bracket 210.

[0211] In this embodiment, the OIS-y coil 620 can move together with the AF movable part 200. The OIS-y coil 620 can move together with the AF movable part 200 in the optical axis direction. During AF driving, the OIS-y coil 620 can move together with the AF movable part 200 in the optical axis direction. The OIS-y coil 620 can be provided on the AF movable part 200. The OIS-y coil 620 can be fixed to the AF movable part 200. The OIS-y coil 620 can be coupled to the AF movable part 200.

[0212] The lens driving device 10 may include an OIS-y sensor 630. The OIS-y driving unit 600 may include the OIS-y sensor 630. The OIS-y sensor 630 may be disposed on the inner plate 720. The OIS-y sensor 630 may include a Hall sensor. The OIS-y sensor 630 may detect the OIS-y magnet 610. The OIS-y sensor 630 may detect the magnetic force of the OIS-y magnet 610. The OIS-y sensor 630 may be disposed on the underside of the OIS-y magnet 610. The OIS-y sensor 630 may overlap with the OIS-y magnet 610 in the direction of the optical axis. The OIS-y sensor 630 may overlap with the OIS-y magnet 610 in a direction perpendicular to the optical axis. Alternatively, the OIS-y sensor 630 may be disposed within the OIS-y coil 620. The OIS-y sensor 630 may overlap with the OIS-y coil 620 in the direction of the optical axis. The OIS-y sensor 630 may face the OIS-y magnet 610. The OIS-y sensor 630 may be provided at a position corresponding to the OIS-y magnet 610. The OIS-y sensor 630 may detect movement of the OIS-y magnet 610. The movement amount or position of the OIS-y magnet 610 detected by the OIS-y sensor 630 may be used for feedback of optical image stabilization (OIS) driving in the y-axis direction.

[0213] The lens driving device 10 may include an OIS-y yoke 640. The OIS-y yoke 640 may be disposed on the OIS-y magnet 610. The OIS-y yoke 640 may be disposed between the OIS-y magnet 610 and the OIS support 310. The OIS-y yoke 640 may prevent magnetic flux leakage of the OIS-y magnet 610 and improve interaction with the OIS-y coil 620.

[0214] When viewed from above, the AF magnet 410, the AF coil 420, the OIS-y magnet 610, and the OIS-y coil 620 may be arranged sequentially on a virtual straight line. When viewed on the top surface, the AF magnet 410, the AF coil 420, the OIS-y magnet 610, and the OIS-y coil 620 may be arranged sequentially on a virtual straight line. When viewed from above, the AF magnet 410, the AF coil 420, the OIS-y magnet 610, and the OIS-y coil 620 may be arranged sequentially. When viewed from above, the AF magnet 410, the AF coil 420, the OIS-y magnet 610, and the OIS-y coil 620 may be arranged sequentially in the y-axis direction. When viewed from above, the AF magnet 410, the AF coil 420, the OIS-y magnet 610, and the OIS-y coil 620 may overlap in the y-axis direction.

[0215] The lens driving device 10 may include boards 710 and 720. Each of the boards 710 and 720 may include a flexible printed circuit board (FPCB). The boards 710 and 720 may be electrically connected to the coils 420, 520, and 620. The boards 710 and 720 may be electrically connected to the sensors 430, 530, and 630.

[0216] The lens driving device 10 may include an outer plate 710. The outer plate 710 may be disposed on the base 110. The outer plate 710 may be electrically connected to the coils 420, 520, and 620. The outer plate 710 may be electrically connected to the sensors 430, 530, and 630. The outer plate 710 may connect the AF bracket 210 to the base 110. The outer plate 710 may elastically connect the AF bracket 210 to the base 110. The outer plate 710 may connect the fixing portion 100 to the inner plate 720. The outer plate 710 may support the AF bracket 210 so that it can move relative to the base 110. The outer plate 710 may guide the AF bracket 210 to move relative to the base 110 in the optical axis direction. The outer plate 710 may include a flexible board. The outer plate 710 may include a flexible printed circuit board (FPCB). The outer plate 710 may include an elastic portion. The outer plate 710 may include an elastic member. The outer panel 710 may include an outer portion 711 provided on the fixing portion 100 and a connection portion 712 extending from the outer portion 711 and combined with the inner panel 720 .

[0217] The outer plate 710 may include an outer portion 711. The outer portion 711 may be disposed on the base 110. The outer portion 711 may be disposed around a side surface of the base 110. The outer portion 711 may be disposed on three sides of the base 110. The outer portion 711 may include two terminal portions. The two terminal portions may be disposed opposite to each other relative to the optical axis. Each of the terminal portions may include a terminal 711-1.

[0218] The outer plate 710 may include a terminal 711-1. The outer portion 711 of the outer plate 710 may include a terminal 711-1. The terminal 711-1 may be electrically connected to the terminal 712-1. The terminal 711-1 may be disposed at the lower end of the base 110. The terminal 711-1 may be coupled to the printed circuit board 50. The terminal 711-1 may be connected to the terminal of the printed circuit board 50 via solder. The terminal 711-1 may be connected to the terminal of the printed circuit board 50 via a conductive member. The terminal 711-1 may be connected to the terminal of the printed circuit board 50. The terminal 711-1 may be electrically connected to the terminal of the printed circuit board 50.

[0219] The outer plate 710 may include a connecting portion 712. The connecting portion 712 may be an "extension". The connecting portion 712 may be a "leg". The connecting portion 712 may extend from the outer portion 711. At least a portion of the connecting portion 712 may move together with the AF bracket 210. The extension may extend from the outer portion 711. At least a portion of the extension may move together with the AF bracket 210. At least a portion of the connecting portion 712 may be arranged perpendicular to the optical axis direction. The connecting portion 712 of the outer plate 710 may be coupled to the inner plate 720 so that the inner plate 720 moves in the optical axis direction. At least a portion of the connecting portion 712 may be arranged parallel to the optical axis direction.

[0220] The connection portion 712 may include a plurality of connection portions. The connection portion 712 may include a first connection portion and a second connection portion. The second connection portion may be disposed below the first connection portion.

[0221] The outer plate 710 may include a terminal 712-1. The connection portion 712 of the outer plate 710 may include a terminal 712-1. The terminal 712-1 may be coupled to the terminal 721-1 of the inner plate 720. The terminal 712-1 of the outer plate 710 may be connected to the terminal 721-1 of the inner plate 720 via solder. The terminal 712-1 of the outer plate 710 may be connected to the terminal 721-1 of the inner plate 720 via a conductive member. The terminal 712-1 of the outer plate 710 may be connected to the terminal 721-1 of the inner plate 720. The terminal 712-1 of the outer plate 710 may be electrically connected to the terminal 721-1 of the inner plate 720.

[0222] The outer plate 710 may include a curved portion 712-2. The curved portion 712-2 may be provided on the connecting portion 712. The curved portion 712-2 may be provided on each of the first connecting portion and the second connecting portion. The curved portion 712-2 may include a shape that is bent at least twice. The curved portion 712-2 may include a U-shaped bend. The curved portion 712-2 may include a circular shape. The curved portion 712-2 may include a portion that is parallel to the optical axis.

[0223] Hereinafter, one of the “terminal 711 - 1 ” and the “terminal 712 - 1 ” of the outer board 710 may be referred to as a “first terminal”, and the other may be referred to as a “second terminal”.

[0224] The lens driving device 10 may include an inner plate 720. The inner plate 720 may be electrically connected to the coils 420, 520, and 620. The inner plate 720 may be electrically connected to the sensors 430, 530, and 630. The inner plate 720 may be disposed on the AF movable portion 200. The inner plate 720 may be disposed on the AF bracket 210. The inner plate 720 may be fixed to the AF bracket 210. The inner plate 720 may be coupled to the AF bracket 210. The inner plate 720 may be bonded to the AF bracket 210 by an adhesive. The inner plate 720 may include a flexible board. The inner plate 720 may include a flexible printed circuit board (FPCB). The inner plate 720 may include an elastic portion. The inner plate 720 may include an elastic member.

[0225] The inner plate 720 may be combined with the bottom surface of the holder member 220. The preload member 230 may be combined with the inner plate 720.

[0226] The inner plate 720 may include a side plate 721. The side plate 721 may be disposed on a side of the AF bracket 210. The side plate 721 may be disposed on an outer surface of the AF bracket 210. In another embodiment, the side plate 721 may be disposed on an inner surface of the AF bracket 210. The side plate 721 of the inner plate 720 may include multiple sections. The side plate 721 may include first to fourth sections.

[0227] The inner plate 720 may include a first portion. The first portion may be disposed on the AF bracket 210. The AF coil 420 may be disposed on the first portion of the inner plate 720. The AF sensor 430 may be disposed on the first portion of the inner plate 720. The AF yoke 440 may be disposed on the first portion of the inner plate 720.

[0228] The inner plate 720 may include a second portion. The second portion may be disposed opposite the first portion. The second portion may be disposed on the AF bracket 210. The second portion may be disposed on a second side surface of the AF bracket 210. The OIS-y coil 620 may be disposed on the second portion of the inner plate 720. The OIS-y sensor 630 may be disposed on the second portion of the inner plate 720. More specifically, the OIS-y sensor 630 may be disposed on the lower plate 722, wherein the lower plate 722 is curved and disposed above the second portion of the inner plate 720. The OIS-y sensor 630 may be disposed on the bottom surface of the lower plate 722.

[0229] The inner plate 720 may include a third portion. The third portion may be disposed on the AF bracket 210. The third portion may be disposed on a third side surface of the AF bracket 210. The OIS-x coil 520 may be disposed on the third portion of the inner plate 720. The OIS-x sensor 530 may be disposed on the third portion of the inner plate 720. More specifically, the OIS-x sensor 530 may be disposed on the lower plate 722, which is curved and disposed above the third portion of the inner plate 720. The OIS-x sensor 530 may be disposed on the bottom surface of the lower plate 722.

[0230] The inner plate 720 may include a fourth portion. The fourth portion may be disposed opposite to the third portion. The fourth portion may be disposed on the AF bracket 210. The fourth portion may be disposed on a fourth side surface of the AF bracket 210.

[0231] Inner plate 720 may include terminal 721-1. Terminal 721-1 may be provided on a fourth portion of inner plate 720. Terminal 721-1 may be electrically connected to coils 420, 520, and 620. Terminal 721-1 may be electrically connected to sensors 430, 530, and 630. Terminal 721-1 may be coupled to terminal 712-1 of outer plate 710.

[0232] Inner plate 720 may include terminal 722-1. Terminal 722-1 may be provided on lower plate 722 of inner plate 720. Terminal 722-1 may be electrically connected to coils 420, 520, and 620. Terminal 722-1 may be electrically connected to sensors 430, 530, and 630. Terminal 722-1 may be coupled to terminal 712-1 of outer plate 710.

[0233] The inner plate 720 may include a hole 722 - 2 , through which the terminal 722 - 1 of the inner plate 720 may be welded to the terminal 712 - 1 of the outer plate 710 .

[0234] The lens driving device 10 may include a guide member. The guide member may include a ball. The guide member may include a pin. The guide member may include a cylindrical member. The guide member may guide the movable portion to move in a specific direction relative to the fixed portion 100.

[0235] The lens drive device 10 may include an AF guide ball 810. The AF guide ball 810 can guide movement of the movable AF portion 200 relative to the fixed portion 100 in the optical axis direction. The AF guide ball 810 can guide movement of the AF bracket 210 relative to the base 110 in the optical axis direction. The AF guide ball 810 can be disposed between the fixed portion 100 and the movable AF portion 200. The AF guide ball 810 can be disposed between the base 110 and the AF bracket 210. The AF guide ball 810 can be disposed between the housing and the base 110. The AF guide ball 810 can be disposed between the base 110 and the AF bracket 210 in the x-axis direction. Alternatively, the AF guide ball 810 can be disposed between the base 110 and the AF bracket 210 in the y-axis direction. The AF guide ball 810 can be disposed in a groove of the base 110. The AF guide ball 810 can be disposed in a groove of the AF bracket 210. The AF guide ball 810 can have a spherical shape. The AF guide ball 810 may be made of metal and may be coated with grease on its surface.

[0236] The AF guide ball 810 can be set at the first corner of the base 110. The AF guide ball 810 can be set at the second corner diagonally opposite to the first corner of the base 110. The AF guide ball 810 can be set at each of the first corner and the second corner of the base 110. The first corner area and the second corner area of ​​the fixing part 100 can be set diagonally relative to the optical axis. The AF guide ball 810 can be set on each of the first corner area and the second corner area of ​​the fixing part 100. The AF guide ball 810 can be set in two groups at each of the first corner and the second corner of the base 110. Here, one group can include four balls. The two groups can be set on opposite sides of the support part of the AF bracket 210.

[0237] As a modified example, the AF guide ball 810 may be provided at each of the first corner and the third corner. Alternatively, the AF guide ball 810 may be provided at each of the first corner and the fourth corner. That is, the AF guide ball 810 may not be provided diagonally.

[0238] The AF guide ball 810 may include a first unit ball disposed on a first corner region of the fixing portion 100 when viewed from above, and a second unit ball disposed on a second corner region, the second corner region being disposed in a diagonal direction of the first corner region of the fixing portion 100. Here, the OIS guide ball 820 may include a first guide member and a second guide member, the first guide member and the second guide member being spaced apart from each other and disposed diagonally between the first unit ball and the second unit ball of the AF guide ball 810 when viewed from above.

[0239] The AF guide balls 810 may include first and second unit balls disposed at a first corner region of the fixing portion 100 when viewed from above, and third and fourth unit balls disposed at a second corner region diagonally disposed from the first corner region of the fixing portion 100. Two sets of AF guide balls 810 may be disposed at each corner.

[0240] The AF guide ball 810 may include a ball that overlaps the OIS guide ball 820 in a direction perpendicular to the optical axis. At least a portion of the AF guide ball 810 may overlap the OIS guide ball 820.

[0241] The AF guide ball 810 may include an inner ball 811. The inner ball 811 may be disposed on the support portion 111 of the base 110. The inner ball 811 may be disposed in the inner groove 111-1 of the base 110. The inner ball 811 may be disposed in the inner groove 224-1 of the AF bracket 210. The inner ball 811 may be disposed in the inner groove 224-1 of the AF movable part 200. The inner ball 811 may be disposed in the inner groove 111-1 of the base 110 and the inner groove 224-1 of the AF bracket 210. The inner ball 811 may be disposed between the inner groove 111-1 of the base 110 and the inner groove 224-1 of the AF bracket 210. The inner ball 811 may be disposed between the inner groove 111-1 of the base 110 and the inner groove 224-1 of the AF bracket 210. The inner ball 811 may be disposed between the AF movable part 200 and the support portion 111 of the fixed part 100.

[0242] The AF guide ball 810 may include an outer ball 812. The outer ball 812 may be disposed on the outer wall portion 112 of the base 110. The outer ball 812 may be disposed in the outer groove 112-1 of the base 110. The outer ball 812 may be disposed in the outer groove 224-2 of the AF bracket 210. The outer ball 812 may be disposed in both the outer groove 112-1 of the base 110 and the outer groove 224-2 of the AF bracket 210. The outer ball 812 may be disposed between the outer groove 112-1 of the base 110 and the outer groove 224-2 of the AF bracket 210. The outer ball 812 may be disposed between the outer groove 112-1 of the fixed portion 100 and the outer groove 224-2 of the AF movable portion 200. The outer ball 812 may be disposed between the AF movable portion 200 and the outer wall portion 112 of the fixed portion 100.

[0243] The inner ball 811 may include a plurality of inner balls 811. The plurality of inner balls 811 may be arranged along the optical axis. The inner ball 811 may include four inner balls 811. The inner balls 811 may include first through fourth inner balls. Two of the four inner balls 811 may each have a large diameter, and the other two may each have a small diameter. The two balls each having a larger diameter may be arranged at the uppermost and lowermost sides. In other words, the two balls each having a smaller diameter may be arranged between the two balls each having a larger diameter.

[0244] The inner balls 811 may include an uppermost inner ball 811-1. The uppermost inner ball 811-1 may be located at the highest position among the inner balls 811. The uppermost inner ball 811-1 may be located closest to the upper plate 121 of the cover 120 among the inner balls 811. The inner balls 811 may include a lowermost inner ball 811-2. The lowermost inner ball 811-2 may be located at the lowest position among the inner balls 811. The lowermost inner ball 811-2 may be located closest to the lower plate of the base 110 among the inner balls 811. The plurality of inner balls 811 may include balls each having a smaller diameter than each of the uppermost inner ball 811-1 and the lowermost inner ball 811-2. The plurality of inner balls 811 may include balls located between the uppermost inner ball 811-1 and the lowermost inner ball 811-2.

[0245] The outer balls 812 may include a plurality of outer balls 812. The plurality of outer balls 812 may be arranged along the optical axis. The outer balls 812 may include four outer balls 812. The outer balls 812 may include first through fourth outer balls. Two of the four outer balls 812 may each have a large diameter, and the other two may each have a small diameter. The two balls, each having a large diameter, may be arranged at the uppermost and lowermost sides. In other words, the two balls, each having a small diameter, may be arranged between the two balls, each having a large diameter.

[0246] The outer balls 812 may include an uppermost outer ball 812-1. The uppermost outer ball 812-1 may be located at the highest position among the outer balls 812. The uppermost outer ball 812-1 may be located closest to the upper plate 121 of the cover 120 among the outer balls 812. The outer balls 812 may include a lowermost outer ball 812-2. The lowermost outer ball 812-2 may be located at the lowest position among the outer balls 812. The lowermost outer ball 812-2 may be located closest to the lower plate of the base 110 among the outer balls 812. The plurality of outer balls 812 may include balls each having a smaller diameter than each of the uppermost outer ball 812-1 and the lowermost outer ball 812-2. The plurality of outer balls 812 may include balls located between the uppermost outer ball 812-1 and the lowermost outer ball 812-2.

[0247] The AF guide balls 810 may include a plurality of balls arranged along the optical axis. The plurality of balls may include uppermost balls 811-1 and 812-1 located at the uppermost side, and lowermost balls 811-2 and 812-2 located at the lowermost side. The height of the point at which the elastic member 920 presses the plate member 910 may be set between the height of each of the uppermost balls 811-1 and 812-1 and the height of each of the lowermost balls 811-2 and 812-2.

[0248] The lens driving device 10 may include an OIS guide ball 820. The OIS guide ball 820 may guide the movement of the OIS bracket 310 relative to the AF bracket 210 in a direction perpendicular to the optical axis. The OIS guide ball 820 may be arranged between the AF movable part 200 and the OIS movable part 300. The OIS guide ball 820 may be arranged between the AF bracket 210 and the OIS bracket 310. The OIS guide ball 820 may be arranged between the lower side of the AF bracket 210 and the OIS bracket 310. The OIS guide ball 820 may be arranged between the housing and the bobbin. The OIS guide ball 820 may be arranged between the housing and the lower side of the bobbin. The OIS guide ball 820 may be arranged between the AF bracket 210 and the OIS bracket 310 in the optical axis direction.

[0249] The OIS guide ball 820 may be disposed on the protrusion 231 of the preload member 230. The OIS guide ball 820 may be disposed in the groove 232 of the protrusion 231. The OIS guide ball 820 may be disposed in the groove 311 of the OIS movable part 300. The OIS guide ball 820 may be disposed between the groove 232 of the protrusion 231 of the AF movable part 200 and the groove 311 of the OIS movable part 300.

[0250] The OIS guide ball 820 may be disposed between the preload member 230 of the AF bracket 210 and the OIS bracket 310. The OIS guide ball 820 may be pressed between the AF bracket 210 and the OIS bracket 310 by the pressing force of the elastic members 830 and 850. The preload member 230 may press the OIS guide ball 820 upward during the process of being coupled to the retainer member 220. The preload member 230 may press the OIS guide ball 820 in the direction of the OIS bracket 310 during the process of being coupled to the retainer member 220. Here, the OIS bracket 310 may press the OIS guide ball 820 toward the preload member 230 by the restoring force of the elastic members 830 and 850. Therefore, the OIS guide ball 820 may be pressed between the preload member 230 and the OIS bracket 310.

[0251] The OIS guide balls 820 can guide movement of the OIS movable portion 300 in the x-axis and y-axis directions. The OIS guide balls 820 can guide movement of the OIS movable portion 300 in the x-axis and y-axis directions. The OIS guide balls 820 can also guide movement of the OIS bracket 310 relative to the AF bracket 210 in the x-axis and y-axis directions, which are perpendicular to the optical axis. In other words, the OIS guide balls 820 can guide movement of the OIS bracket 310 in both the x-axis and y-axis directions. For reference, compared to a comparative example in which separate balls are provided for guiding the x-axis and y-axis, this embodiment, in which both the x-axis and y-axis guiding balls are integrally provided, minimizes the size of the lens drive device 10. In particular, the height of the lens drive device 10 in the optical axis direction can be reduced. Consequently, the height protruding from the smartphone, i.e., the shoulder height, can be minimized. The OIS guide balls 820 can include multiple balls. The OIS guide balls 820 may include four balls.

[0252] As a modification, the OIS guide ball 820 may be provided with a ball for guiding x-axis driving and a ball for guiding y-axis driving, respectively.

[0253] The lens driving device 10 may include an elastic member. The elastic member may be formed to support OIS drive. The elastic member may support movement of the OIS movable portion 300. The elastic member may be configured to press the OIS guide ball 820. The elastic member may be configured to guide both the OIS x-axis drive and the OIS y-axis drive using only the OIS guide ball 820. The elastic member may include a leaf spring. The elastic member may include a wire. The elastic member may have elasticity. The elastic member may be made of metal.

[0254] The elastic member may press the OIS guide ball 820 between the AF movable part 200 and the OIS movable part 300. The elastic member may press the OIS movable part 300 toward the AF movable part 200. The elastic member may press the OIS movable part 300 toward the OIS movable part 300. Here, the elastic member may include an elastic member 830 and a wire 850.

[0255] The lens driving device 10 may include an elastic member 830. The elastic member 830 may be an "upper elastic member." The elastic member 830 may be an "upper spring." The elastic member 830 may be a leaf spring. The elastic member 830 may have elasticity. The elastic member 830 may be disposed on the OIS movable portion 300. The elastic member 830 may be coupled to the OIS movable portion 300. The elastic member 830 may be connected to the upper surface of the OIS movable portion 300. The elastic member 830 may be disposed on the upper surface of the OIS movable portion 300. The elastic member 830 may be disposed on the upper surface of the OIS bracket 310. The elastic member 830 may be disposed on the OIS bracket 310. The elastic member 830 may be disposed on the upper portion of the OIS bracket 310. The elastic member 830 may be disposed on the OIS bracket 310. The elastic member 830 may be disposed perpendicular to the optical axis.

[0256] The elastic member 830 may include an inner portion 831. The inner portion 831 may be coupled to the OIS movable portion 300. The elastic member 830 may include an outer portion 832. The outer portion 832 may be coupled to the wire 850. The elastic member 830 may include a connecting portion 833. The connecting portion 833 may connect the inner portion 831 and the outer portion 832. The connecting portion 833 may elastically connect the inner portion 831 and the outer portion 832. The connecting portion 833 may include elasticity. The connecting portion 833 may be an elastic portion. The connecting portion 833 may be a "leg."

[0257] The inner portion 831 of the elastic member 830 may be arranged higher than the outer portion 832. The inner portion 831 of the elastic member 830 may be arranged at a higher position than the outer portion 832. The inner portion 831 of the elastic member 830 may be arranged higher than the outer portion 832 by a first distance. The reason why the inner portion 831 of the elastic member 830 is arranged higher than the outer portion 832 may be due to the pressing force of the preload member 230. Due to this structure, the OIS guide ball 820 can maintain contact with the preload member 230 of the AF bracket 210 and the OIS bracket 310.

[0258] The OIS support 310 may include a first region coupled to the elastic member 830. The wire 850 may include a second region coupled to the elastic member 830. The first region of the OIS support 310 may be positioned above the second region of the wire 850. The first region of the OIS support 310 may be spaced 0.2 mm to 0.6 mm upward from the second region of the wire 850. The first region of the OIS support 310 may be spaced 0.3 mm to 0.5 mm upward from the second region of the wire 850.

[0259] The lens driving device 10 may include a wire 850. The wire 850 may be a "side elastic member." The wire 850 may be a conductive wire. The wire 850 may be a wire spring. The wire 850 may be a suspension wire. The wire 850 may have elasticity. The wire 850 may connect the elastic member 830 to the AF bracket 210. The wire 850 may connect the elastic member 830 to the underside of the AF bracket 210. The wire 850 may connect the elastic member 830 to the housing. The wire 850 may elastically connect the elastic member 830 to the AF bracket 210. The wire 850 may connect the elastic member 830 to the metal member 225 of the AF bracket 210. The wire 850 may elastically connect the elastic member 830 to the metal member 225 of the AF bracket 210. The wire 850 may be arranged parallel to the optical axis. The wire 850 may be arranged in the direction of the optical axis.

[0260] The upper end of wire 850 may be coupled to elastic member 830. The first portion of wire 850 may be coupled to elastic member 830. The lower end of wire 850 may be coupled to AF movable portion 200. The lower end of wire 850 may be coupled to the bottom surface of AF movable portion 200. The second portion of wire 850 may be coupled to AF movable portion 200. The lower end of wire 850 may be coupled to AF bracket 210. The lower end of wire 850 may be coupled to holder member 220. The lower end of wire 850 may be coupled to metal member 225. The lower end of wire 850 may be soldered to metal member 225. The lower end of wire 850 may be welded to metal member 225. The lower end of wire 850 may be coupled to metal member 225 using conductive epoxy. The lower end of wire 850 may be connected to metal member 225 using a conductive material. The lower end of wire 850 may be directly coupled to metal member 225. The wire 850 may connect the elastic member 830 and the AF movable part 200. The wire 850 may connect the elastic member 830 and the AF bracket 210. The wire 850 may connect the elastic member 830 and the holder member 220. The wire 850 may connect the elastic member 830 and the metal member 225.

[0261] The lens driving device 10 may include a pressing member. The pressing member may be an "AF guide ball pressing member". The pressing member may press the AF guide ball 810. The pressing member may be configured as a pressing ball. The AF guide ball 810 pressed by the pressing member may be clamped between the fixed portion 100 and the AF movable portion 200. The AF guide ball 810 pressed by the pressing member may be clamped between the base 110 and the AF bracket 210. The pressing member may keep the AF guide ball 810 in contact with the fixed portion 100 and the AF movable portion 200. The pressing member may keep the AF guide ball 810 in contact with the base 110 and the AF bracket 210.

[0262] The lens driving device 10 may include a plate member 910. The pressing member may include the plate member 910. The plate member 910 may be disposed on the AF guide ball 810. The plate member 910 may contact the AF guide ball 810. The plate member 910 may be disposed on the elastic member 920. The plate member 910 may be disposed on the base 110. The plate member 910 may be disposed between the elastic member 920 and the AF guide ball 810. The plate member 910 may press the AF guide ball 810 toward the AF bracket 210 via the elastic member 920. The plate member 910 may be disposed between the AF guide ball 810 and the fixing member 100. The plate member 910 may be disposed between the inner ball 811 and the support column 111 of the fixing member 100.

[0263] The lens driving device 10 may include an elastic member 920. The pressing member may include the elastic member 920. The elastic member 920 may be a spring. The elastic member 920 may be a conical spring. The elastic member 920 may be disposed on the fixed portion 100. The elastic member 920 may press the AF guide ball 810 toward the AF movable portion 200. The elastic member 920 may press the plate member 910 toward the AF guide ball 810. The elastic member 920 may be disposed between the plate member 910 and the fixed member 100. The elastic member 920 may press the plate member 910 against the fixed member 100. The elastic member 920 may press the plate member 910 in a direction opposite to the fixed member 100. The elastic member 920 may be disposed between the plate member 910 and the support portion 111 of the fixed member 100. The elastic member 920 may be disposed in the inner groove 111-1 of the fixed member 100. The elastic member 920 may press the AF guide ball 810 between the fixed portion 100 and the AF movable portion 200 .

[0264] As a modified example, an elastic member 920 may be provided on the AF movable portion 200. Here, the elastic member 920 may press the AF guide ball 810 toward the fixed portion 100. The elastic member 920 may be provided on one of the fixed portion 100 and the AF movable portion 200 to press the AF guide ball 810 toward the other of the fixed portion 100 and the AF movable portion 200. The elastic member 920 may press the plate member 910. The elastic member 920 may be provided between the plate member 910 and the base 110. The elastic member 920 may be provided between the AF guide ball 810 and the base 110. The elastic member 920 may be provided on the base 110. The elastic member 920 may be provided in the inner groove 111-1 of the base 110. The elastic member 920 may press the AF guide ball 810 toward the AF bracket 210. As a result, the AF guide ball 810 may remain in contact with the plate member 910 and the AF bracket 210.

[0265] The elastic member 920 may include a curved portion. The curved portion may include a curved shape. The curved portion may include multiple curved portions. The curved portion may include three curved portions. The elastic member 920 may be bent at least three times. The elastic member 920 may include an upper curved portion 921. The elastic member 920 may include a lower curved portion 922. The elastic member 920 may include a connecting curved portion 923. The connecting curved portion 923 may be disposed between the upper curved portion 921 and the lower curved portion 922. The upper curved portion 921 may have an obtuse angle. The lower curved portion 922 may have an obtuse angle. The connecting curved portion 923 may have an obtuse angle. The upper curved portion 921 may be disposed on the fixing portion 100. The lower curved portion 922 may be disposed on the fixing portion 100. The connecting curved portion 923 may be disposed on the plate member 910. Due to this structure, the elastic member 920 can press the plate member 910 against the fixing member 100. The connection bent portion 923 may come into contact with the plate member 910 to press the plate member 910 toward the AF guide ball 810 .

[0266] The height of the point where the elastic member 920 presses the plate member 910 may be lower than the height of the balls located at the lower positions of the uppermost inner ball 811-1 and the uppermost outer ball 812-1, and higher than the height of the balls located at the higher positions of the lowermost inner ball 811-2 and the lowermost outer ball 812-2. More specifically, as Figure 36 As shown in (a), when the AF movable part 200 moves upward, the height (b) of the point where the elastic member 920 presses the plate member 910 can be higher than the height (a) of the ball located at a higher position between the lowest inner ball 422 and the lowest outer ball 412. A gap c can exist in height between these two points. In addition, when the AF movable part 200 moves upward, the height (b) of the point where the elastic member 920 presses the plate member 910 can be higher than the height (a) of the ball located at a higher position between the lowest inner ball 422 and the lowest outer ball 412. Figure 36When moving downward as shown in FIG. 2 (b), the height e of the point where the elastic member 920 presses the plate member 910 can be lower than the height d of the lower-positioned ball, either the uppermost inner ball 421 or the uppermost outer ball 411. A height gap f can exist between the two points. Therefore, the moment generated when the elastic member 920 presses the plate member 910 can be prevented or minimized. In other words, tilting or separation of the plate member 910 can be prevented.

[0267] The lens driving device 10 may include a reinforcement member 930. The reinforcement member 930 may be disposed on the base 110. The reinforcement member 930 may be provided to reinforce the strength of the base 110. The reinforcement member 930 may prevent damage to the base 110. The reinforcement member 930 may prevent damage to the support column 111 of the base 110. The reinforcement member 930 may prevent damage to the outer wall 112 of the base 110. The reinforcement member 930 may have elasticity. The reinforcement member 930 may be made of metal. The reinforcement member 930 may include a shape that is bent at least twice.

[0268] When viewed from above, the reinforcement member 930 may be provided as The reinforcing member 930 may be open inwardly.

[0269] The reinforcement member 930 may include an inner portion 931. The inner portion 931 may be disposed on the opposite side of the inner groove 111-1 of the support portion 111 of the fixing portion 100. The reinforcement member 930 may include an outer portion 932. The outer portion 932 may be disposed on the opposite surface of the outer groove 112-1 of the outer wall portion 112 of the fixing portion 100. The reinforcement member 930 may include a connecting portion 933. The connecting portion 933 may connect the inner portion 931 and the outer portion 932.

[0270] The lens driving device 10 may include a cover plate 940. The cover plate 940 may be disposed on the AF guide ball 810. The cover plate 940 may overlap with the AF guide ball 810 in the optical axis direction. The cover plate 940 may overlap with the inner ball 811 in the optical axis direction. The cover plate 940 may overlap with the outer ball 812 in the optical axis direction. The cover plate 940 may be disposed on the inner groove 224-1 and the outer groove 224-2 of the AF bracket 210 to prevent the AF guide ball 810 from moving upward.

[0271] In this embodiment, one side of the wire 850 may be bonded to the AF movable portion 200 that is fixed during OIS driving to reduce the characteristic of the wire 850 vibrating as a mass point.

[0272] In this embodiment, the base 110, the preload member 230, the inner plate 720, the retainer member 220, and the OIS bracket 310 can be sequentially arranged from the bottom side. In this embodiment, the base 110, the preload member 230, the inner plate 720, the retainer member 220, and the OIS bracket 310 can be stacked sequentially from the bottom side. In this embodiment, a stable bonding surface with the lens module 20 can be ensured by the stacking direction. In this embodiment, as shown in FIG. Figure 27 As shown, the rib 21 of the lens module 20 may be disposed in the groove 313 of the OIS bracket 310 .

[0273] Hereinafter, the configuration of a lens driving device according to a modified example is described with reference to the drawings.

[0274] Figure 37 is a cross-sectional view of a lens driving device according to a modification. Figure 38 is a perspective view showing a base and a base cushioning member of a lens driving apparatus according to a modified example. Figure 39 is a perspective view illustrating a cover and a cover buffer member of a lens driving apparatus according to a modified example. Figure 40 is a perspective view illustrating a cover and a cover buffer member of a lens driving apparatus according to a modification.

[0275] The lens driving device according to the modified example may include a base buffer member 960. The base buffer member 960 may be provided on the base 110. The base buffer member 960 may be fixed to the base 110. The base buffer member 960 may be coupled to the base 110. The base buffer member 960 may be bonded to the base 110 by an adhesive. The base buffer member 960 may be provided on the upper surface of the base 110. The base buffer member 960 may minimize the impact of the AF movable part 200 colliding with the base 110.

[0276] At least a portion of the base buffer member 960 may be disposed between the preload member 230 and the base 110 in the optical axis direction. At least a portion of the base buffer member 960 may be disposed between the preload member 230 and the base 110. The base buffer member 960 may include poron.

[0277] The lens driving device according to the modified example may include a cover buffer member 970. The cover buffer member 970 may be provided on the cover 120. The cover buffer member 970 may be provided on the upper plate 121 of the cover 120. The cover buffer member 970 may be fixed to the upper plate 121 of the cover 120. The cover buffer member 970 may be bonded to the upper plate 121 of the cover 120. The cover buffer member 970 may be bonded to the upper plate 121 of the cover 120 by an adhesive. The cover buffer member 970 may be provided on the bottom surface of the upper plate 121 of the cover 120. The cover buffer member 970 may minimize the impact of the AF movable part 200 colliding with the cover 120.

[0278] At least a portion of the cover buffer member 970 may be disposed between the upper plate 121 of the cover 120 and the AF movable portion 200 in the optical axis direction. At least a portion of the cover buffer member 970 may be disposed between the upper plate 121 of the cover 120 and the AF movable portion 200. The cover buffer member 970 may include foam.

[0279] The lens driving device according to the modified example may include a cover plate buffer member 980. The cover plate buffer member 980 may be provided on the cover plate 240. The cover plate buffer member 980 may be fixed to the cover plate 240. The cover plate buffer member 980 may be coupled to the cover plate 240. The cover plate buffer member 980 may be bonded to the cover plate 240 by an adhesive. The cover plate buffer member 980 may be provided on the bottom surface of the cover plate 240. The cover plate buffer member 980 may minimize the impact of the OIS movable portion 300 colliding with the cover plate 240.

[0280] The cover buffer member 980 may be at least partially disposed between the cover 240 and the OIS movable portion 300 in the optical axis direction. At least a portion of the cover buffer member 980 may be disposed between the cover 240 and the OIS movable portion 300. The cover buffer member 980 may include foam.

[0281] Hereinafter, auto focus (AF) driving of the lens driving apparatus according to the present embodiment is described with reference to the accompanying drawings.

[0282] Figures 41 to 43 1 is a diagram for explaining autofocus driving of the lens driving device according to the present embodiment. Figure 41 It is a cross-sectional view showing the structure of the movable portion in an initial state where no current is applied to the AF coil. Figure 42 It is a cross-sectional view showing a state in which a forward current is applied to the AF coil so that the movable portion moves upward in the optical axis direction. Figure 43 It is a cross-sectional view showing a state in which a reverse current is applied to the AF coil so that the movable portion moves downward in the optical axis direction.

[0283] like Figure 41 As shown, at an initial position where no current is applied to the AF coil 420, the movable portion may be provided at a position spaced apart from both the upper plate 121 of the cover 120 and the base 110. Here, the movable portion may be the AF movable portion 200. In addition, the movable portion may include the AF movable portion 200 and the OIS movable portion 300.

[0284] When a forward current is applied to the AF coil 420, the AF coil 420 may move upward in the optical axis direction due to electromagnetic interaction between the AF coil 420 and the AF magnet 410 (see FIG. Figure 42A). Here, AF bracket 210, together with AF coil 420, can move upward along the optical axis. Furthermore, OIS bracket 310 and the lens, along with AF bracket 210, can move upward along the optical axis. This allows the distance between the lens and the image sensor to be changed, thereby adjusting the focus of the image formed on the image sensor through the lens.

[0285] When a reverse current is applied to the AF coil 420, the AF coil 420 may move downward in the optical axis direction due to electromagnetic interaction between the AF coil 420 and the AF magnet 410 (see FIG. Figure 43 B). Here, AF bracket 210, together with AF coil 420, can move downward along the optical axis. Furthermore, OIS bracket 310 and the lens, along with AF bracket 210, can move downward along the optical axis. This allows the distance between the lens and the image sensor to be changed, thereby adjusting the focus of the image formed on the image sensor through the lens.

[0286] During the movement of the AF coil 420, the AF sensor 430 can move together with the AF coil 420 and detect the magnetic field strength of the AF magnet 410 to detect the movement amount or position of the lens in the optical axis direction. The movement amount or position of the lens in the optical axis direction detected by the AF sensor 430 can be used for autofocus feedback control.

[0287] Hereinafter, optical image stabilization (OIS) driving of the lens driving apparatus according to the present embodiment is described with reference to the accompanying drawings.

[0288] Figures 44 to 46 : is a diagram for explaining optical image stabilization driving of the lens driving device according to the present embodiment. Figure 44 is a cross-sectional view showing the OIS movable portion in an initial state where no current is applied to the OIS-x coil and the OIS-y coil. Figure 45 : is a cross-sectional view showing a state in which the OIS movable portion is moved in the x-axis direction perpendicular to the optical axis by applying a current to the OIS-x coil. Figure 46 : is a cross-sectional view showing a state in which the OIS movable portion is moved in the y-axis direction perpendicular to the optical axis and the x-axis by applying a current to the OIS-x coil.

[0289] like Figure 44 As shown, the movable portion may be set at an initial position without applying current to the OIS-x coil 520 and the OIS-y coil 620. Here, the movable portion may be the OIS movable portion 300.

[0290] When current is applied to the OIS-x coil 520, the OIS-x magnet 510 may move in the x-axis direction perpendicular to the optical axis due to electromagnetic interaction between the OIS-x coil 520 and the OIS-x magnet 510 (see FIG. Figure 45 A). Here, the OIS holder 310 can move in the x-axis direction together with the OIS-x magnet 510. Furthermore, the lens can move in the x-axis direction together with the OIS holder 310. More specifically, when a forward current is applied to the OIS-x coil 520, the OIS-x magnet 510, the OIS holder 310, and the lens can move in one direction along the x-axis. Additionally, when a reverse current is applied to the OIS-x coil 520, the OIS-x magnet 510, the OIS holder 310, and the lens can move in the other direction along the x-axis.

[0291] When current is applied to the OIS-y coil 620, the OIS-y magnet 610 can move in the y-axis direction perpendicular to the optical axis due to electromagnetic interaction between the OIS-y coil 620 and the OIS-y magnet 610 (see FIG. Figure 46 B). Here, the OIS holder 310 can move along the y-axis together with the OIS-y magnet 610. Furthermore, the lens can move along the y-axis together with the OIS holder 310. More specifically, when a forward current is applied to the OIS-y coil 620, the OIS-y magnet 610, the OIS holder 310, and the lens can move in one direction along the y-axis. Furthermore, when a reverse current is applied to the OIS-y coil 620, the OIS-y magnet 610, the OIS holder 310, and the lens can move in the other direction along the y-axis.

[0292] The OIS-x sensor 530 can detect the magnetic field strength of the OIS-x magnet 510 to detect the amount of movement or position of the OIS-x magnet 510. The amount of movement or position detected by the OIS-x sensor 530 can be used for closed-loop autofocus control in the x-axis direction. The OIS-y sensor 630 can detect the magnetic field strength of the OIS-y magnet 610 to detect the amount of movement or position of the OIS-y magnet 610. The amount of movement or position detected by the OIS-y sensor 630 can be used for closed-loop autofocus control in the y-axis direction.

[0293] Hereinafter, a camera device according to the present embodiment is described with reference to the accompanying drawings.

[0294] Figure 47 is an exploded perspective view of the camera device according to this embodiment.

[0295] The camera device 10A may include a camera module.

[0296] The camera device 10A may include a lens module 20. The lens module 20 may include at least one lens. The lens may be disposed at a position corresponding to the image sensor 60. The lens module 20 may include a lens and a lens barrel. The lens module 20 may be coupled to the OIS bracket 310 of the lens driving device 10. The lens module 20 may be coupled to the OIS bracket 310 by screwing and / or adhesive. The lens module 20 may move integrally with the OIS bracket 310.

[0297] The camera device 10A may include an optical filter 30. The optical filter 30 may be used to block light having a specific frequency band from entering the image sensor 60 among the light passing through the lens module 20. 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 on the sensor base 40. As 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 entering the image sensor 60.

[0298] The camera device 10A may include a sensor base 40. The sensor base 40 may be provided between the lens driving device 10 and the printed circuit board 50. The sensor base 40 may include a protrusion 41 on which the optical filter 30 is provided. An opening may be formed in a portion of the sensor base 40 on which the optical filter 30 is provided so that light passing through the optical filter 30 is incident on the image sensor 60. An adhesive member may join or adhere the base 110 of the lens driving device 10 to the sensor base 40. The adhesive member may additionally serve to prevent foreign matter from being introduced into the lens driving device 10. The adhesive material may include one or more of an epoxy resin, a thermosetting adhesive, and a UV-curable adhesive.

[0299] The camera device 10A may include a printed circuit board (PCB) 50. The PCB 50 may be a board or a circuit board. The lens driving device 10 may be disposed on the PCB 50. The sensor base 40 may be disposed between the PCB 50 and the lens driving device 10. The PCB 50 may be electrically connected to the lens driving device 10. The image sensor 60 may be disposed on the PCB 50. The PCB 50 may be provided with various circuits, components, controllers, etc. to convert an image formed on the image sensor 60 into an electrical signal and transmit the electrical signal to an external device.

[0300] The camera device 10A may include an image sensor 60. The image sensor 60 may be configured to form an image by incident 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 using surface mounting technology (SMT). As another example, the image sensor 60 may be bonded to the printed circuit board 50 by flip chip technology. The image sensor 60 may be arranged so that the optical axis is aligned with the lens. That is, the optical axis of the image sensor 60 and the optical axis of the lens may be aligned with each other. The image sensor 60 may convert light irradiated onto an effective image area of ​​the image sensor 60 into an electrical signal. The image sensor 60 may be any one of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID.

[0301] 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 via a circuit pattern provided on the printed circuit board 50. The motion sensor 70 may output rotational angular velocity information generated by movement of the camera device 10A. The motion sensor 70 may include a two-axis gyroscope sensor, a three-axis gyroscope sensor, or an angular velocity sensor.

[0302] 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 independently control the direction, intensity, and magnitude 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 optical image stabilization function. In addition, the controller 80 may perform autofocus feedback control and / or closed-loop autofocus control on the lens driving device 10.

[0303] 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.

[0304] Hereinafter, an optical device according to the present embodiment is described with reference to the accompanying drawings.

[0305] Figure 48 is a perspective view of an optical device according to this embodiment, Figure 49 is a perspective view showing an optical device according to a modification.

[0306] 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 notebook 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 capturing an image or a photograph.

[0307] 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 provided on the main body 20. The camera device 10A may photograph a subject. The optical device 1 may include a display. The display may be provided on the main body 20. The display may output one or more of an image and a video photographed by the camera device 10A. The display may be provided on a first surface of the main body 20. The camera device 10A may be provided on at least one of a first side surface of the main body 20 or a second side surface opposite to the first side surface. Figure 48 As shown, the camera device 10A may be provided with three cameras arranged in a vertical direction. Figure 49 As shown, the camera device 10A-1 may have three cameras arranged in a horizontal direction.

[0308] Although the embodiments of the technical concept of the present invention have been described with reference to the accompanying drawings, it will be understood by those skilled in the art that the present invention may be implemented in other specific forms without changing the technical concept or essential characteristics. Therefore, the embodiments disclosed above are considered to be illustrative rather than restrictive.

Claims

1. A lens driving device, comprising: base; a housing, the housing being disposed on the base; a bobbin disposed in the housing; a first ball disposed between the housing and the base; a second ball disposed between the housing and an underside of the bobbin; an elastic member coupled to an upper side of the bobbin; as well as A line connects the elastic member and the lower side of the housing.

2. The lens driving device according to claim 1, wherein The base includes a first guide portion configured to guide the first ball so that the first ball moves.

3. The lens driving device according to claim 2, wherein: The housing includes, on a side surface thereof, a second guide portion configured to guide the first ball so that the first ball moves.

4. The lens driving device according to claim 3, wherein: Each of the first guide portion and the second guide portion includes a groove.

5. The lens driving device according to claim 1, wherein The housing includes a first housing including a lower plate having a metal member, and a second housing combined with the first housing and having a protrusion configured to guide the second ball.

6. The lens driving device according to claim 5, comprising a first plate provided between the first housing and the second housing, in, The first plate is combined with the lower surface of the first housing, and Wherein, the second shell is combined with the first plate.

7. The lens driving device according to claim 5, wherein: The second housing is configured to press a portion of the elastic member by coming into contact with the second ball.

8. The lens driving device according to claim 1, wherein The elastic member includes an inner portion coupled to the wire barrel, an outer portion coupled to the wire, and a connecting portion connecting the inner portion and the outer portion, and The inner portion of the elastic member is provided at an upper side than the outer portion.

9. The lens driving device according to claim 1, wherein: The bobbin includes a first region coupled to the elastic member, wherein the line includes a second region coupled to the elastic member, and The first region of the thread drum is provided above the second region of the thread.

10. A lens driving device comprising: Fixed part; a first movable portion, the first movable portion being disposed on the fixed portion; a second movable portion, the second movable portion being disposed within the first movable portion; a first driving portion configured to move the first movable portion in the optical axis direction; a second driving portion configured to move the second movable portion in a direction perpendicular to the optical axis direction; a first ball disposed between the first movable portion and the second movable portion; an elastic member coupled to an upper surface of the second movable portion; as well as line, the line being arranged in the direction of the optical axis, wherein the upper end of the wire is combined with the elastic member, and Wherein, the lower end portion of the wire is coupled to the lower surface of the first movable portion.

Images