KR20240044928A - A lens driving device, a camera device and an optical apparatus - Google Patents

Abstract

This embodiment includes a fixing unit; a first moving part disposed within the fixing part; a second moving part disposed within the first moving part; a first driving unit that moves the first moving unit in the optical axis direction; a second driving unit that moves the second moving unit in a first direction perpendicular to the optical axis direction; a third driving unit that moves the second moving unit in a second direction perpendicular to the optical axis direction and the first direction; a first ball disposed between the first moving part and the second moving part so as to overlap the first moving part and the second moving part in the optical axis direction; a wire disposed parallel to the optical axis direction; a first elastic member connecting a first region of the wire and the first moving part; and a second elastic member connecting the second region of the wire and the second moving part.

Description

A lens driving device, a camera device and an optical apparatus}

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

A camera device is a device that takes photos or videos of a subject, and is mounted on optical devices such as smartphones, drones, vehicles, etc.

Camera devices are equipped with an autofocus function that automatically adjusts focus depending on the distance to the subject. In addition, a hand shake correction function is applied to prevent the focus from shaking due to the user's hand shaking.

The autofocus function and image stabilization function can be performed through electromagnetic interaction between a magnet and a coil.

However, in a conventional lens driving device, a magnet that does not require electrical connection is placed in a moving part and a coil is placed in a fixed part. In this case, there is a problem of increased current consumption because the magnet, which has a large weight compared to the coil, is placed in the moving part.

In particular, recently, as image sensors have become higher resolution, the diameter of the lens has increased and the weight of the lens has also increased, aggravating the problem.

Additionally, in the conventional lens driving device, there is a problem that the height of the camera device in the optical axis direction increases as the guide structure for OIS-x-axis driving and the guide structure for OIS-y-axis driving are arranged in separate layers.

(Patent Document 1) KR 10-2015-0118005 A

This embodiment seeks to provide a lens driving device that reduces current consumption for performing the autofocus function and image stabilization function by placing a coil that is lighter in weight than the magnet in the moving part.

In addition, it is intended to provide a lens driving device whose height in the optical axis direction is minimized by forming a guide structure for OIS-x-axis driving and a guide structure for OIS-y-axis driving in one piece.

The lens driving device according to this embodiment includes a fixing part; a first moving part disposed within the fixing part; a second moving part disposed within the first moving part; a first driving unit that moves the first moving unit in the optical axis direction; a second driving unit that moves the second moving unit in a first direction perpendicular to the optical axis direction; a third driving unit that moves the second moving unit in a second direction perpendicular to the optical axis direction and the first direction; a first ball disposed between the first moving part and the second moving part so as to overlap the first moving part and the second moving part in the optical axis direction; a wire disposed parallel to the optical axis direction; a first elastic member connecting a first region of the wire and the first moving part; And it may include a second elastic member connecting the second region of the wire and the second moving part.

The second area of the wire may be placed higher than the first area.

The first movable unit may include an upper plate disposed higher than the second movable unit, and the first ball may be disposed between the upper plate of the first movable unit and the second movable unit.

The first elastic member includes an outer part coupled to the first moving part, and the second elastic member includes an inner part coupled to the second moving part, and in the optical axis direction, the first region of the wire The distance between and the second area may be longer than the distance between the outer portion of the first elastic member and the inner portion of the second elastic member.

The first elastic member includes an outer part coupled to the first moving part, a coupling part coupled to the wire, and a connection part connecting the outer part and the coupling part, and the coupling part of the first elastic member includes the first elastic member. 1 It may be placed lower than the outer portion of the elastic member.

The second elastic member includes an inner part coupled to the second moving part, a coupling part coupled to the wire, and a connection part connecting the inner part and the coupling part, and the coupling part of the second elastic member includes the first part. 2 It may be placed higher than the inner portion of the elastic member.

When viewed from above, the first ball may be disposed in a space formed through the inner portion, the coupling portion, and the connecting portion of the second elastic member.

The second moving part includes a first protrusion and a second protrusion formed on the upper surface of the second moving part, and the inner part of the second elastic member includes a first region coupled to the first protrusion, and a first region coupled to the second protrusion. It includes a second area, and the wire includes a first wire disposed in a first corner area of the fixing part, and the coupling part of the second elastic member includes a first coupling part coupled to the first wire. , the connecting portion of the second elastic member includes a first connecting portion connecting the first region of the inner portion and the first coupling portion, and a second connecting portion connecting the second region of the inner portion and the first coupling portion. can do.

The coupling portion of the first elastic member includes a first coupling portion coupled to the first wire, and the connecting portion of the first elastic member includes the outer portion of the first elastic member and the first coupling portion of the first elastic member. It includes a first connection part and a second connection part for connecting the coupling part, and when viewed from below, the first and second connection parts of the first elastic member are a virtual axis connecting the optical axis and the first corner area of the fixing part. It may be symmetrical based on a straight line.

The wire includes first to fourth wires respectively disposed in first to fourth corner areas of the fixing part, and the first elastic member includes first to fourth elastic members corresponding to the first to fourth wires. It may include a unit, wherein the first to fourth elastic units are spaced apart from each other, and the second elastic member may be formed integrally.

The first driving unit includes a first coil disposed on the first moving portion and a first magnet disposed on the fixing portion, and the second driving portion includes a second coil disposed on the second moving portion, and It may include a second magnet disposed on the fixing part.

The third driving unit may include a third coil disposed on the second moving unit and a third magnet disposed on the fixed unit.

A first substrate including a first part disposed on the first movable part, a second part disposed on a first side of the second movable part, and a third part disposed on a second side of the second movable part. wherein the first coil is disposed on the first portion of the first substrate, the second coil is disposed on the second portion of the first substrate, and the third coil is disposed on the first portion of the first substrate. It can be placed in the third section.

a second substrate including a body portion disposed on the fixing portion and an extension portion extending from the body portion, the extension portion including a terminal coupled to a terminal of the first substrate, and at least a portion of the extension portion It can move together with the first moving part.

The camera device according to this embodiment includes a printed circuit board; an image sensor disposed on the printed circuit board; The lens driving device disposed on the printed circuit board; And it may include a lens coupled to the lens driving device.

The optical device according to this embodiment includes a main body; the camera device disposed on the main body; and a display disposed on the main body and outputting at least one of a video and an image captured by the camera device.

Through this embodiment, the current consumption for performing the autofocus function and image stabilization function can be reduced as the coil, which is lighter in weight than the magnet, is placed in the moving part.

Additionally, since the guide structure for OIS-x-axis driving and the guide structure for OIS-y-axis driving are formed integrally, the height of the lens driving device in the optical axis direction can be minimized.

Additionally, the OIS guide structure of this embodiment can maintain the OIS guide balls in close contact without a separate preload member.

Through this, the height at which the camera device protrudes from the smartphone can be minimized.

1 is a conceptual diagram of a lens driving device according to this embodiment.
Figure 2 is a perspective view of a lens driving device according to this embodiment.
Figure 3 is a cross-sectional view viewed from AA in Figure 2.
Figure 4 is a cross-sectional view viewed from BB in Figure 2.
Figure 5 is a cross-sectional view viewed from CC of Figure 2.
Figure 6 is a cross-sectional view of the lens driving device according to this embodiment cut into a cross-section perpendicular to the optical axis and viewed from above.
Figure 7 is an exploded perspective view of the lens driving device according to this embodiment.
Figure 8 is a perspective view of the lens driving device according to this embodiment with the cover removed.
Figure 9 is an enlarged view showing a portion of Figure 8.
Figure 10a is a perspective view of Figure 8 seen from another direction.
Figure 10b is a perspective view showing the metal member of the AF moving part in Figure 10 omitted.
Figure 11 is a perspective view showing a fixing part and related configuration of the lens driving device according to this embodiment.
Figure 12 is a perspective view showing the moving part and related configuration of the lens driving device according to this embodiment.
Figure 13 is a front view of Figure 12 seen from the front.
Figure 14 is a cross-sectional perspective view showing the AF guide ball and related configuration of the lens driving device according to this embodiment.
Figure 15 is a perspective view of Figure 12 seen from another direction.
Figure 16 is a perspective view with the cover in Figure 15 removed.
Figure 17 is a bottom view of the AF moving unit and related components of the lens driving device according to this embodiment.
Figure 18 is a bottom perspective view of Figure 17 seen from another direction.
FIG. 19 is an enlarged view of a portion of FIG. 18.
Figure 20 is a perspective view showing the OIS moving part and related configuration of the lens driving device according to this embodiment.
FIG. 21A is an enlarged view of a portion of FIG. 20.
FIG. 21B is a cross-sectional view viewed from AA of FIG. 21A.
Figure 22a is a cross-sectional view showing the pressing structure of the OIS guide ball of the lens driving device according to this embodiment.
Figure 22b is a cross-sectional view showing the connection structure of the elastic member and wire of the lens driving device according to this embodiment.
Figure 23 is a bottom perspective view of Figure 20 seen from another direction.
Figure 24 is a perspective view showing the inner substrate and outer substrate of the lens driving device according to this embodiment.
Figure 25 is a perspective view showing the elastic member and wire of the lens driving device according to this embodiment.
26 to 28 are diagrams for explaining autofocus driving of the lens driving device according to this embodiment. Figure 26 is a cross-sectional view showing the moving part in the initial state in which no current is applied to the AF coil. Figure 27 is a cross-sectional view showing the moving part moving upward in the optical axis direction when a forward current is applied to the AF coil. Figure 28 is a cross-sectional view showing the moving part moving downward in the optical axis direction when a reverse current is applied to the AF coil.
29 to 31 are diagrams for explaining the image stabilization operation of the lens driving device according to this embodiment. Figure 29 is a cross-sectional view showing the moving part in the initial state in which no current is applied to the OIS-x coil and OIS-y coil. Figure 30 is a cross-sectional view showing the OIS moving part moving in the x-axis direction perpendicular to the optical axis when current is applied to the OIS-x coil. Figure 31 is a cross-sectional view showing how current is applied to the OIS-y coil and the OIS moving part moves in the y-axis direction perpendicular to both the optical axis and the x-axis.
Figure 32 is an exploded perspective view of the camera device according to this embodiment.
Figure 33 is a perspective view of an optical device according to this embodiment.
Figure 34 is a perspective view of an optical device according to a modification.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

However, the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and as long as it is within the scope of the technical idea of the present invention, one or more of the components may be optionally used between the embodiments. It can be used by combining or replacing.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention, unless explicitly specifically defined and described, are generally understood by those skilled in the art to which the present invention pertains. It can be interpreted as meaning, and the meaning of commonly used terms, such as terms defined in a dictionary, can be interpreted by considering the contextual meaning of the related technology.

Additionally, the terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In this specification, the singular may also include the plural unless specifically stated in the phrase, and when described as "at least one (or more than one) of A and B and C", it is combined with A, B, and C. It can contain one or more of all possible combinations.

Additionally, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and are not limited to the essence, order, or order of the component.

And, when a component is described as being 'connected', 'coupled', or 'connected' to another component, that component is directly 'connected', 'coupled', or 'connected' to that other component. In addition to cases, it may also include cases where the component is 'connected', 'coupled', or 'connected' by another component between that component and that other component.

Additionally, when described as being formed or disposed “on top” or “bottom” of each component, “top” or “bottom” means that the two components are directly adjacent to each other. This includes not only the case of contact, but also the case where one or more other components are formed or disposed between the two components. In addition, when expressed as “top” or “bottom,” the meaning of not only the upward direction but also the downward direction can be included based on one component.

The 'Optical Axis (see OA in FIG. 26) direction' used below is defined as the optical axis direction of the lens and/or image sensor coupled to the lens driving device.

The 'vertical direction' used below may be a direction parallel to or the same direction as the optical axis direction. The vertical direction may correspond to the 'z-axis direction'. The 'horizontal direction' used below may be a direction perpendicular to the vertical direction. That is, 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'.

The 'auto focus (AF) function' used below is used to adjust the distance to the image sensor by moving the lens in the optical axis direction according to the distance to the subject so that a clear image of the subject can be obtained on the image sensor. It is defined as a function that automatically focuses on In addition, 'auto focus feedback (CLAF, closed-loop auto focus) control' detects the distance between the image sensor and the lens to improve the accuracy of focus control and provides real-time feedback control of the lens position. It is defined as

The 'optical image stabilization (OIS) function' used below is a function that moves or tilts the lens in a direction perpendicular to the optical axis to offset hand shaking in order to prevent the image or video from shaking due to the user's hand shaking. define. In addition, 'closed-loop auto focus (CLAF) control' detects the position of the lens relative to the image sensor and provides real-time feedback on the position of the lens to improve the accuracy of camera shake correction. Defined as controlling.

Hereinafter, one of the “AF moving unit 200” and the “OIS moving unit 300” may be referred to as the “first moving unit” and the other may be referred to as the “second moving unit.”

Hereinafter, one of the “AF driving unit (400)”, “OIS-x driving unit (500)”, and “OIS-y driving unit (600)” will be referred to as the “first driving unit”, the other will be referred to as the “second driving unit”, and the other will be referred to as the “second driving unit”. One can be called the “Third District East.”

Hereinafter, one of the "AF magnet (410)", "OIS-x magnet (510)", and "OIS-y magnet (610)" is called the "first magnet", the other is called the "second magnet", and the other is called the "second magnet". One can be called the “third magnet.”

Hereinafter, one of the "AF coil (420)", "OIS-x coil (520)", and "OIS-y coil (620)" is called the "first coil", the other is called the "second coil", and the other is called the "second coil". One can be called the “third coil.”

Hereinafter, one of the "AF sensor (430)", "OIS-x sensor (530)", and "OIS-y sensor (630)" is called the "first sensor", the other is called the "second sensor", and the other is called the "second sensor". One can be called the “third sensor.”

Hereinafter, one of the “inner substrate 710” and the “outer substrate 720” may be referred to as the “first substrate” and the other may be referred to as the “second substrate.”

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

Hereinafter, one of the “lower elastic member 910” and the “upper elastic member 920” may be referred to as the “first elastic member” and the other may be referred to as the “second elastic member.”

Hereinafter, the configuration of the lens driving device according to this embodiment will be described with reference to the drawings.

FIG. 1 is a conceptual diagram of a lens driving device according to this embodiment, FIG. 2 is a perspective view of the lens driving device according to this embodiment, FIG. 3 is a cross-sectional view viewed from A-A of FIG. 2, and FIG. 4 is a view from B-B of FIG. 2. It is a cross-sectional view as seen, Figure 5 is a cross-sectional view viewed from C-C of Figure 2, Figure 6 is a cross-sectional view of the lens driving device according to the present embodiment cut in a cross-section perpendicular to the optical axis, and Figure 7 is a cross-sectional view of the lens driving device according to the present embodiment. It is an exploded perspective view of the device, Figure 8 is a perspective view of the lens driving device according to this embodiment with the cover removed, Figure 9 is an enlarged view of a part of Figure 8, and Figure 10a is a view of Figure 8 in another direction. It is a perspective view as seen from, FIG. 10b is a perspective view showing the metal member of the AF moving part omitted in FIG. 10, and FIG. 11 is a perspective view showing the fixing part and related configuration of the lens driving device according to the present embodiment, and FIG. 12 is a perspective view showing the moving part and related configuration of the lens driving device according to this embodiment, FIG. 13 is a front view of FIG. 12 from the front, and FIG. 14 is an AF guide ball and It is a cross-sectional perspective view showing the related configuration, FIG. 15 is a perspective view of FIG. 12 seen from another direction, FIG. 16 is a perspective view with the cover removed from FIG. 15, and FIG. 17 is an AF movement of the lens driving device according to this embodiment. It is a bottom view of the parts and related components seen from below, Figure 18 is a bottom perspective view of Figure 17 seen from another direction, Figure 19 is an enlarged view of a part of Figure 18, and Figure 20 is an enlarged view of a part of Figure 17 according to this embodiment. It is a perspective view showing the OIS moving part and related configuration of the lens driving device, FIG. 21A is an enlarged view of a portion of FIG. 20, FIG. 21B is a cross-sectional view viewed from A-A of FIG. 21A, and FIG. 22A is the present embodiment. It is a cross-sectional view showing the pressing structure of the OIS guide ball of the lens driving device according to , FIG. 22b is a cross-sectional view showing the coupling structure of the elastic member and the wire of the lens driving device according to this embodiment, and FIG. 23 is another view of FIG. 20. It is a bottom perspective view seen from the direction, FIG. 24 is a perspective view showing the inner substrate and the outer substrate of the lens driving device according to this embodiment, and FIG. 25 is a perspective view showing the elastic member and wire of the lens driving device according to this embodiment. am.

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.

The lens driving device 10 may include a fixing unit 100. The fixed part 100 may be a relatively fixed part when the movable part moves. The movable part can move relative to the fixed part 100.

The lens driving device 10 may include a base 110. The fixing part 100 may include a base 110. The base 110 may be placed below the AF holder 210. The base 110 may be placed below the OIS holder 310. Base 110 may be combined with cover 120. The AF holder 210 and OIS holder 310 may be placed on the base 110. The AF holder 210 and the OIS holder 310 may be placed on the lower plate of the base 110. The AF holder 210 and the OIS holder 310 may be placed within the base 110. The AF holder 210 and the OIS holder 310 may be placed within the side plate of the base 110.

In this embodiment, the AF magnet 410, OIS-x magnet 510, and OIS-y magnet 610 may all be placed on the base 110. The AF magnet 410, OIS-x magnet 510, and OIS-y magnet 610 may all be placed in the fixing unit 100. That is, during the autofocus operation, the AF magnet 410, OIS-x magnet 510, and OIS-y magnet 610 can all maintain a fixed state. Additionally, during the hand shake correction operation, the AF magnet 410, OIS-x magnet 510, and OIS-y magnet 610 can all maintain a fixed state. In an autofocus operation, the AF magnet 410 is fixed and the AF coil 420 can move. In an image stabilization operation, the OIS-x and OIS-y magnets 510 and 610 are fixed and the OIS-x and OIS-y coils 520 and 620 can move.

Base 110 may include a lower plate. Base 110 may include a side plate. The side plates may be 'lateral'. The side plate of the base 110 may extend from the upper surface of the lower plate.

The side plate of the base 110 may include a plurality of side plates. The side plate of the base 110 may include four side plates. However, one or more of the four side plates of the base 110 may be omitted. The side plate of the base 110 may include first to fourth side plates 111, 112, 113, and 114. The base 110 may include a first side plate 111 and a second side plate 113 disposed on opposite sides of each other, and a third side plate 112 and a fourth side plate 114 disposed on opposite sides of each other.

The sides of the base 110 may include a plurality of sides. The sides of the base 110 may include four sides. However, one or more of the four sides of the base 110 may be omitted. Sides of the base 110 may include first to fourth sides. The base 110 may include first and second sides disposed on opposite sides of each other, and third and fourth side portions disposed on opposite sides of each other.

The AF magnet 410 may be placed on the first side plate 111 of the base 110. The OIS-x magnet 510 may be placed on the second side plate 113 of the base 110. The OIS-y magnet 610 may be placed on the third side plate 112 of the base 110.

The first side plate 111 of the base 110 may include a groove 111a. The groove 111a may be an ‘AF guide ball receiving groove’. An AF guide ball 810 may be placed in the groove 111a. The groove 111a may be in direct contact with the AF guide ball 810. The groove 111a may be arranged in the optical axis direction. The groove 111a may include a plurality of grooves. The groove 111a may include two grooves. The two grooves may be arranged parallel to each other. The groove 111a may include a first groove that contacts the AF guide ball 810 at two points and a second groove that contacts the AF guide ball 810 at one point. As a modified example, both the first groove and the second groove may contact the AF guide ball 810 at two points.

The second side plate 113 of the base 110 may include a protrusion. The protrusion may protrude outward. Extension portions 722 of the outer substrate 720 may be disposed on the upper and lower sides of the protrusion. A groove may be formed in the protrusion to prevent interference even when the extension portion 722 of the outer substrate 720 moves.

Base 110 may include steps 115 . The step 115 may be formed at the lower end of the outer surface of the base 110. The step 115 may protrude from the outer surface of the base 110. The side plate 122 of the cover 120 may be disposed on the step 115 of the base 110.

The lens driving device 10 may include a cover 120. The fixing part 100 may include a cover 120. Cover 120 may be placed on base 110. Cover 120 may be coupled to base 110. Cover 120 may be fixed to base 110. The cover 120 can accommodate the AF holder 210 inside. The cover 120 can accommodate the OIS holder 310 inside. Cover 120 may be a shield member. The cover 120 may be a shield can.

Cover 120 may include a top plate 141. The upper plate 141 may be placed on the moving part. The upward movement of the moving part may be limited by the moving part coming into contact with the upper plate 141. The top plate 141 may include a hole through which light passes.

Cover 120 may include a side plate 142. The side plate 142 may extend from the upper plate 141. The side plate 142 may be placed on the base 110. The side plate 142 may be disposed on a stepped portion protruding from the lower end of the outer surface of the base 110. The side plate 142 may include a plurality of side plates. The side plate 142 may include four side plates. The side plate 142 may include a first side plate and a second side plate disposed on opposite sides of each other, and a third side plate and a fourth side plate disposed on opposite sides of each other.

The lens driving device 10 may include a moving part. The movable part may be disposed on the fixed part 100. The movable part may be disposed within the fixed part 100. The movable part may be disposed on the fixed part 100. The movable part may be movably disposed on the fixed part 100. The moving part can be moved relative to the fixed part 100 by the driving part. The moving part can move during AF operation. The moving part can move when OIS is running. A lens may be coupled to the moving part.

The lens driving device 10 may include an AF moving unit 200. The AF moving unit 200 may be disposed on the fixed unit 100. The AF moving unit 200 may be disposed within the fixing unit 100. The AF moving unit 200 may be disposed on the fixing unit 100. The AF moving unit 200 may be disposed between the fixed unit 100 and the OIS moving unit 300. The AF moving unit 200 may be movably disposed on the fixing unit 100. The AF moving unit 200 can move in the optical axis direction with respect to the fixing unit 100 by the AF driving unit 400. The AF moving unit 200 can move during AF operation.

The lens driving device 10 may include an AF holder 210. The AF moving unit 200 may include an AF holder 210. The AF holder 210 may be an 'AF carrier'. AF holder 210 may be placed within the base 110. The AF holder 210 may be placed on the base 110. The AF holder 210 may be placed within the cover 120. The AF holder 210 may be placed between the base 110 and the OIS holder 310. The AF holder 210 may be arranged to be movable in the optical axis direction.

The AF holder 210 may include protrusions. The protrusion may be coupled to the lower elastic member 910. The lower elastic member 910 may include a hole coupled to the protrusion of the AF holder 210. As a modified example, the AF holder 210 may include a groove that accommodates the adhesive instead of a protrusion. At this time, the lower elastic member 910 may include a hole disposed in the groove of the AF holder 210. The protrusions of the AF holder 210 may be formed on the lower surface of the AF holder 210. The protrusion of the AF holder 210 may protrude from the lower surface of the AF holder 210.

The protrusions of the AF holder 210 may include a plurality of protrusions. The protrusions of the AF holder 210 may include first protrusions 211 and second protrusions 212. The outer portion 911 of the lower elastic member 910 may include a first region coupled to the first protrusion 211 and a second region 212 coupled to the first protrusion 212. The wire 930 may include a first wire 931 disposed in the first corner area of the fixing part 100. The coupling portion 912 of the lower elastic member 910 may include a first coupling portion coupled to the first wire 931. The connection portion 913 of the lower elastic member 910 includes a first connection portion 913-1 and a second connection portion connecting the outer portion 911 of the lower elastic member 910 and the first coupling portion of the lower elastic member 910. 913-2) may be included. The connecting portion 913 of the lower elastic member 910 includes a first connecting portion 913-1 connecting the first region of the outer portion 911 and the first coupling portion, and a first connecting portion 913-1 connecting the second region of the outer portion 911 and the first coupling portion. It may include a second connection part 913-2 for connecting. That is, the connecting portion 913 of the lower elastic member 910 may be provided with two connecting portions to connect one outer portion 911 and one coupling portion 912.

When viewed from below, the first and second connection parts 913-1 and 913-2 of the lower elastic member 910 are symmetrical with respect to an imaginary straight line connecting the optical axis and the first corner area of the fixing part 100. It can be.

The wire 930 may include a second wire 933 disposed in the second corner area of the fixing part 100. The coupling portion 912 of the lower elastic member 910 may include a second coupling portion coupled to the second wire 933. The wire 930 may include a third wire 932 disposed in the third corner area of the fixing part 100. The coupling portion 912 of the lower elastic member 910 may include a third coupling portion coupled to the third wire 932. The wire 930 may include a fourth wire 934 disposed in the fourth corner area of the fixing part 100. The coupling portion 912 of the lower elastic member 910 may include a fourth coupling portion coupled to the fourth wire 934. The first corner area of the fixing unit 100 may be placed diagonally opposite the second corner area, and the third corner area may be placed diagonally opposite the fourth corner area.

The AF holder 210 may include a protrusion 213. The protrusion 213 may be formed on the outer surface of the AF holder 210. The protrusion 213 may protrude outward from the AF holder 210. Extension portions 722 of the outer substrate 720 may be disposed on the upper and lower surfaces of the protrusion 213.

AF holder 210 may include a groove 214. The groove 214 may be an ‘AF guide ball receiving groove’. An AF guide ball 810 may be placed in the groove 214. The groove 214 may be in direct contact with the AF guide ball 810. The groove 214 may be arranged in the optical axis direction. Groove 214 may include a plurality of grooves. Groove 214 may include two grooves. The two grooves may be arranged parallel to each other. The groove 214 may include a first groove that contacts the AF guide ball 810 at two points and a second groove that contacts the AF guide ball 810 at one point. As a modified example, both the first groove and the second groove may contact the AF guide ball 810 at two points.

The AF holder 210 may include a protrusion 215a. The protrusion 215a may protrude from the lower surface of the upper plate of the AF holder 210. An OIS guide ball 820 may be disposed on the lower surface of the protrusion 215a. The protrusion 215a may include a plurality of protrusions. The protrusion 215a may include four protrusions.

AF holder 210 may include a groove 215. The groove 215 may be an ‘OIS guide ball receiving groove’. The groove 215 may be formed on the protrusion 215a. The groove 215 may be formed on the lower surface of the protrusion 215a. The groove 215 may be formed concavely on the lower surface of the protrusion 215a. An OIS guide ball 820 may be placed in the groove 215. The groove 215 may be in direct contact with the OIS guide ball 820.

AF holder 210 may include a metal member 216. The metal member 216 may be insert-molded into the AF holder 210. At least a portion of the metal member 216 may be disposed on the upper surface of the AF holder 210. The metal member 216 may be disposed to reinforce the strength of the AF holder 210.

AF holder 210 may include a groove 217. The groove 217 may be a “metal member receiving groove.” The groove 217 may be formed on the upper surface of the AF holder 210. The groove 217 may be formed concavely on the upper surface of the AF holder 210. A metal member 216 may be placed in the groove 217. The groove 217 may be formed in a shape corresponding to the metal member 216.

The lens driving device 10 may include a cover 220 . The AF moving unit 200 may include a cover 220. The cover 220 may be combined with the AF holder 210. The cover 220 may be coupled to the lower surface of the AF holder 210. The cover 220 may be coupled to the AF holder 210 from the lower side. Cover 220 may include a hook 221. The hook 221 of the cover 220 may be coupled to the AF holder 210. The hook 221 of the cover 220 may protrude upward and be coupled to the side of the AF holder 210.

The lens driving device 10 may include an OIS moving unit 300. The OIS moving unit 300 may be disposed on the fixed unit 100. The OIS moving unit 300 may be disposed within the fixed unit 100. The OIS moving unit 300 may be disposed on the fixed unit 100. The OIS moving unit 300 may be disposed within the AF moving unit 200. The OIS moving unit 300 may be arranged to be movable. The OIS moving unit 300 can move in the x-axis direction perpendicular to the optical axis with respect to the fixed unit 100 and the AF moving unit 200 by the OIS-x driving unit 500. The OIS moving unit 300 can move in the y-axis direction perpendicular to the optical axis with respect to the fixed unit 100 and the AF moving unit 200 by the OIS-y driving unit 600. The OIS moving unit 300 can move when OIS is driven.

The lens driving device 10 may include an OIS holder 310. The OIS moving unit 300 may include an OIS holder 310. The OIS holder 310 may be an 'OIS carrier'. The OIS holder 310 may be placed within the AF holder 210. The OIS holder 310 may be placed within the base 110. The OIS holder 310 may be placed on the base 110. The OIS holder 310 may be placed within the cover 120. The OIS holder 310 may be arranged to be movable in a direction perpendicular to the optical axis.

The OIS holder 310 may include an outer surface. The OIS holder 310 may include multiple sides. The OIS holder 310 may include first and second sides disposed on opposite sides of each other, and third and fourth sides disposed on opposite sides of each other. The AF coil 420 may be disposed between the first side of the OIS holder 310 and the AF magnet 410. The OIS-x coil 520 may be disposed between the second side of the OIS holder 310 and the OIS-x magnet 510. The OIS-y coil 620 may be disposed between the third side of the OIS holder 310 and the OIS-y magnet 610. The AF coil 420 may be disposed on the first side of the OIS holder 310. The OIS-x coil 520 may be disposed on the second side of the OIS holder 310. The OIS-y coil 620 may be placed on the third side of the OIS holder 310.

The OIS holder 310 may include a groove 311. The groove 311 may be an 'upper elastic member interference prevention groove'. The groove 311 may be formed on the upper surface of the OIS holder 310. The groove 311 may be formed concavely on the upper surface of the OIS holder 310. The groove 311 may be disposed at a position corresponding to the upper elastic member 920 to prevent the OIS holder 310 and the upper elastic member 920 from interfering with each other.

The OIS holder 310 may include a groove 312. The groove 312 may be an ‘OIS guide ball receiving groove’. An OIS guide ball 820 may be placed in the groove 312. The groove 312 may be in direct contact with the OIS guide ball 820. The groove 312 may be arranged in a direction perpendicular to the optical axis. The groove 312 may be recessed in the optical axis direction. Groove 312 may include a plurality of grooves. Groove 312 may include four grooves. The groove 312 may contact the OIS guide ball 820 at one point. Alternatively, the groove 312 may contact the OIS guide ball 820 at two points. The number of contact points between the OIS holder 310 and the OIS guide ball 820 may vary depending on the movement of the OIS guide ball 820. Groove 312 may be formed in groove 311. Groove 312 may be further recessed from groove 311 .

One of the grooves 311 and 312 of the OIS holder 310 may be referred to as a 'first groove' and the other may be referred to as a 'second groove'.

The OIS holder 310 may include a lateral stopper. The side stopper may limit the sideward stroke of the OIS holder 310. That is, when the OIS holder 310 moves to the maximum, the side stopper of the OIS holder 310 may contact one or more of the AF holder 210 and the base 110. The side stopper may be formed on the outer surface of the OIS holder 310. The side stopper may protrude outward from the side of the OIS holder 310.

The OIS holder 310 may include protrusions. The protrusion may be coupled to the upper elastic member 920. The upper elastic member 920 may include a hole coupled to the protrusion of the OIS holder 310. As a modified example, the OIS holder 310 may include a groove for receiving the adhesive instead of a protrusion. At this time, the upper elastic member 920 may include a hole disposed in the groove of the OIS holder 310. The protrusions of the OIS holder 310 may be formed on the upper surface of the OIS holder 310. The protrusion of the OIS holder 310 may protrude from the upper surface of the OIS holder 310.

The protrusions of the OIS holder 310 may include a plurality of protrusions. The protrusions of the OIS holder 310 may include first protrusions 314 and second protrusions 315. The inner portion 921 of the upper elastic member 920 may include a first region coupled to the first protrusion 314 and a second region 212 coupled to the second protrusion 315. The wire 930 may include a first wire 931 disposed in the first corner area of the fixing part 100. The coupling portion 922 of the upper elastic member 920 may include a first coupling portion coupled to the first wire 931. The connection part 923 of the upper elastic member 920 includes a first connection part 923-1 and a second connection part connecting the inner part 921 of the upper elastic member 920 and the first coupling part of the upper elastic member 920 ( 923-2) may be included. The connection portion 923 of the upper elastic member 920 includes a first connection portion 923-1 connecting the first region of the inner portion 921 and the first coupling portion, and a first coupling portion 923-1 connecting the first region of the inner portion 921 and the first coupling portion. It may include a second connection part 923-2 for connecting. That is, the connecting portion 923 of the upper elastic member 920 may be provided with two connecting portions to connect one inner portion 921 and one coupling portion 922.

When viewed from below, the first and second connection parts 923-1 and 923-2 of the upper elastic member 920 are symmetrical with respect to an imaginary straight line connecting the optical axis and the first corner area of the fixing part 100. It can be.

The coupling portion 922 of the upper elastic member 920 may include a second coupling portion coupled to the second wire 933. The coupling portion 922 of the upper elastic member 920 may include a third coupling portion coupled to the third wire 932. The coupling portion 922 of the upper elastic member 920 may include a fourth coupling portion coupled to the fourth wire 934.

The lens driving device 10 may include a driving unit. The driving unit may move the moving unit with respect to the fixed unit 100. The driving unit may include an AF driving unit 400. The driving unit may include an OIS driving unit (500, 600). The driving unit may include a coil and a magnet.

The lens driving device 10 may include an AF driving unit 400. The AF driving unit 400 can move the AF moving unit 200 in the optical axis direction. The AF driving unit 400 can move the AF holder 210 in the optical axis direction. The AF driving unit 400 can move the AF holder 210 in the optical axis direction through electromagnetic force. The AF driving unit 400 may include a coil and a magnet.

In this embodiment, the AF holder 210 and the OIS holder 310 can move in the optical axis direction due to the interaction between the AF coil 420 and the AF magnet 410. The AF coil 420, AF holder 210, and OIS holder 310 can move in the optical axis direction as one unit.

The lens driving device 10 may include an AF magnet 410. The AF driving unit 400 may include an AF magnet 410. The AF magnet 410 may be placed in the fixing unit 100. The AF magnet 410 may be placed on the base 110. The AF magnet 410 may be placed on the cover 120. The AF magnet 410 may be placed on the side plate 122 of the cover 120. The AF magnet 410 may be placed on the outer surface of the base 110. The AF magnet 410 may be placed on the inner side of the base 110. The AF magnet 410 may be fixed to the base 110. The AF magnet 410 may be coupled to the base 110. The AF magnet 410 may be attached to the base 110 with adhesive. The AF magnet 410 may be placed within the cover 120. The AF magnet 410 may interact with the AF coil 420. The AF magnet 410 may interact electromagnetically with the AF coil 420. The AF magnet 410 may be placed in a position corresponding to the AF coil 420. The AF magnet 410 may face the AF coil 420. The AF magnet 410 may face the AF coil 420. The AF magnet 410 may overlap the AF coil 420 in a direction perpendicular to the optical axis.

The AF magnet 410 may be a 4-pole magnet. The AF magnet 410 may include a four-pole magnetized 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 in a vertical direction. The first magnet portion and the second magnet portion may be spaced apart in the vertical direction, and a neutral portion may be disposed between the first magnet portion and the second magnet portion.

The lens driving device 10 may include an AF coil 420. The AF driving unit 400 may include an AF coil 420. The AF coil 420 may interact with the AF magnet 410. The AF coil 420 can move in the optical axis direction. The AF coil 420 can move in the optical axis direction through interaction 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 placed in a position corresponding to the AF magnet 410. The AF coil 420 may overlap the AF magnet 410 in a direction perpendicular to the optical axis. The AF coil 420 may be disposed on the inner substrate 710. The AF coil 420 may be disposed in the first portion 711 of the inner substrate 710. The AF coil 420 may be placed in the AF holder 210. The AF coil 420 may be disposed on the AF moving unit 200.

As a modified example, the AF magnet 410 may be placed on the AF moving unit 200 and the AF coil 420 may be placed on the fixed unit 100. The AF magnet 410 may be placed in the AF holder 210. The AF coil 420 may be disposed on the base 110 through the substrate.

The lens driving device 10 may include an AF sensor 430. The AF driving unit 400 may include an AF sensor 430. The AF sensor 430 may be a Hall sensor. The AF sensor 430 may be placed on the substrate 740. The AF sensor 430 may be disposed in the first portion 711 of the substrate 740. The AF sensor 430 can detect the AF magnet 410. The AF sensor 430 can detect the movement of the AF magnet 410. The movement amount or position of the AF magnet 410 detected by the AF sensor 430 can be used as feedback for autofocus driving.

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 can supply current to the AF coil 420.

The AF sensor 430 may be disposed within the AF coil 420. The AF sensor 430 may overlap 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 placed outside the AF coil 420.

The lens driving device 10 may include an OIS-x driving unit 500. The OIS-x driving unit 500 can move the OIS moving unit 300 in the x-axis direction perpendicular to the optical axis direction. The OIS-x driver 500 can move the OIS holder 310 in the x-axis direction perpendicular to the optical axis. The OIS-x driver 500 can move the OIS holder 310 in the x-axis direction perpendicular to the optical axis through electromagnetic force. The OIS-x driving unit 500 may include a coil and a magnet.

In this embodiment, the OIS holder 310 can move in the x-axis direction perpendicular to the optical axis due to the interaction between the OIS-x coil 520 and the OIS-x magnet 510. The OIS-x coil 520 and the OIS holder 310 can move in the x-axis direction as one unit.

The lens driving device 10 may include an OIS-x magnet 510. The OIS-x driving unit 500 may include an OIS-x magnet 510. OIS-x magnet 510 may be placed on the fixing part 100. OIS-x magnet 510 may be placed on the base 110. The OIS-x magnet 510 may be placed on the outer surface of the base 110. The OIS-x magnet 510 may be placed on the inner side of the base 110. OIS-x magnet 510 can be fixed to the base 110. OIS-x magnet 510 may be coupled to the base 110. The OIS-x magnet 510 may be attached to the base 110 with adhesive. OIS-x magnet 510 may be placed within the cover 120. OIS-x magnet 510 can interact with 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 placed in a position corresponding to the OIS-x coil 520. The OIS-x magnet (510) can face the OIS-x coil (520). The OIS-x magnet 510 may face 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 second magnet 610 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. The inner surface of the OIS-x magnet 510 may be an N pole and the outer surface may be an S pole.

The lens driving device 10 may include an OIS-x coil 520. The OIS-x driving unit 500 may include an OIS-x coil 520. OIS-x coil 520 can interact with OIS-x magnet 510. The OIS-x coil 520 can move in the x-axis direction perpendicular to the optical axis. The OIS-x coil 520 can move in the x-axis direction through interaction with the OIS-x magnet 510. The OIS-x coil 520 may face the OIS-x magnet 510. The OIS-x coil (520) can face the OIS-x magnet (510). The OIS-x coil 520 may be placed in 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 substrate 710. The OIS-x coil 520 may be disposed in the second portion 713 of the inner substrate 710. The OIS-x coil 520 may be placed in the OIS holder 310. The OIS-x coil 520 may be placed on the OIS moving unit 300.

The lens driving device 10 may include an OIS-x sensor 530. The OIS-x driving unit 500 may include an OIS-x sensor 530. The OIS-x sensor 530 may be placed on the inner substrate 710. The OIS-x sensor 530 may be disposed in the second portion 713 of the inner substrate 710. The OIS-x sensor 530 may include a Hall sensor. The OIS-x sensor 530 can detect the OIS-x magnet 510. The OIS-x sensor 530 can detect the magnetic force of the OIS-x magnet 510. The OIS-x sensor 530 may be placed 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 face the OIS-x magnet 510. The OIS-x sensor 530 may be placed in a position corresponding to the OIS-x magnet 510. The OIS-x sensor 530 can detect the 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 can be used as feedback for hand shake correction drive in the x-axis direction.

The lens driving device 10 may include an OIS-y driving unit 600. The OIS-y driving unit 600 can move the OIS moving unit 300 in the y-axis direction perpendicular to the optical axis direction and the x-axis direction. The OIS-y driving unit 600 can move the OIS holder 310 in the y-axis direction perpendicular to both the optical axis and the x-axis direction. The OIS-y driver 600 can move the OIS holder 310 in the y-axis direction perpendicular to both the optical axis and the x-axis direction through electromagnetic force. The OIS-y driving unit 600 may include a coil and a magnet.

In this embodiment, the OIS holder 310 can move in the y-axis direction perpendicular to both the optical axis direction and the x-axis direction due to the interaction between the OIS-y coil 620 and the OIS-y magnet 610. The OIS-y coil 620 and the OIS holder 310 can move in the y-axis direction as one unit.

The lens driving device 10 may include an OIS-y magnet 610. The OIS-y driving unit 600 may include an OIS-y magnet 610. OIS-y magnet 610 may be placed in the fixing part 100. OIS-y magnet 610 may be placed on the base 110. The OIS-y magnet 610 may be placed on the outer surface of the base 110. The OIS-y magnet 610 may be placed on the inner surface of the base 110. OIS-y magnet 610 may be fixed to the base 110. OIS-y magnet 610 may be coupled to the base 110. The OIS-y magnet 610 may be attached to the base 110 with adhesive. OIS-y magnet 610 may be placed within the cover 120. OIS-y magnet 610 can interact with OIS-y coil 620. The OIS-y magnet 610 may interact electromagnetically with the OIS-y coil 620. The OIS-y magnet 610 may be placed in a position corresponding to the OIS-y coil 620. The OIS-y magnet 610 may face the OIS-y coil 620. The OIS-y magnet 610 may face the OIS-y coil 620. The OIS-y magnet 610 may overlap the OIS-y coil 620 in a direction perpendicular to the optical axis.

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. The inner surface of the OIS-y magnet 610 may be an N pole and the outer surface may be an S pole.

The lens driving device 10 may include an OIS-y coil 620. The OIS-y driving unit 600 may include an OIS-y coil 620. OIS-y coil 620 can interact with OIS-y magnet 610. The OIS-y coil 620 may be placed on the opposite side of the AF coil 420 based on the optical axis. The OIS-y coil 620 can move in the y-axis direction perpendicular to both the optical axis and the x-axis. The OIS-y coil 620 can move in the y-axis direction through interaction with the OIS-y magnet 610. The OIS-y coil 620 may face the OIS-y magnet 610. The OIS-y coil 620 may face the OIS-y magnet 610. The OIS-y coil 620 may be placed in a position 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 substrate 710. The OIS-y coil 620 may be disposed in the third portion 712 of the inner substrate 710. The OIS-y coil 620 may be placed in the OIS holder 310. The OIS-y coil 620 may be placed on the OIS moving unit 300.

The lens driving device 10 may include an OIS-y sensor 630. The OIS-y driving unit 600 may include an OIS-y sensor 630. The OIS-y sensor 630 may be placed on the inner substrate 710. The OIS-y sensor 630 may be disposed in the third portion 712 of the inner substrate 710. The OIS-y sensor 630 may include a Hall sensor. The OIS-y sensor 630 can detect the OIS-y magnet 610. The OIS-y sensor 630 can detect the magnetic force of the OIS-y magnet 610. 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 optical axis direction. The OIS-y sensor 630 may face the OIS-y magnet 610. The OIS-y sensor 630 may be placed in a position corresponding to the OIS-y magnet 610. The OIS-y sensor 630 can detect the 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 can be used for feedback of hand shake correction drive in the y-axis direction.

The lens driving device 10 may include a substrate. The substrate may include a flexible substrate. The substrate may be electrically connected to the coil. The substrate may be electrically connected to the sensor. The substrate may be formed ductile. The substrate may be flexible. The substrate may be a circuit board. The substrate may be a printed circuit board.

The lens driving device 10 may include an inner substrate 710. The inner substrate 710 may be electrically connected to the coils 420, 520, and 620. The inner substrate 710 may be electrically connected to the sensors 430, 530, and 630. The inner substrate 710 can connect the AF holder 210 and the OIS holder 310. The inner substrate 710 can elastically connect the AF holder 210 and the OIS holder 310. The inner substrate 710 can support the OIS holder 310 to be movable with respect to the AF holder 210. The inner substrate 710 can guide the OIS holder 310 to move in a direction perpendicular to the optical axis with respect to the AF holder 210. The inner substrate 710 may include a flexible substrate. The inner substrate 710 may include a flexible printed circuit board (FPCB). The inner substrate 710 may include an elastic portion. The inner substrate 710 may include an elastic member.

The inner substrate 710 may include a first portion 711. The first part 711 may be disposed on the AF moving unit 200. The first part 711 may be placed in the AF holder 210. The AF coil 420 may be disposed in the first portion 711 of the inner substrate 710. The AF sensor 430 may be disposed in the first portion 711 of the inner substrate 710. The yoke 830 may be disposed on the first portion 711 of the inner substrate 710.

The inner substrate 710 may include a second portion 713. The second part 713 may be placed in the OIS holder 310. The second part 713 may be disposed on the second side of the OIS holder 310. The OIS-x coil 520 may be disposed in the second portion 713 of the inner substrate 710. The OIS-x sensor 530 may be disposed in the second portion 713 of the inner substrate 710.

The inner substrate 710 may include a third portion 712. The third part 712 may be placed in the OIS holder 310. The third portion 712 may be disposed on the third side of the OIS holder 310. The OIS-y coil 620 may be disposed in the third portion 712 of the inner substrate 710. The OIS-y sensor 630 may be disposed in the third portion 712 of the inner substrate 710.

The inner substrate 710 may include a fourth portion 714. The fourth part 714 may be disposed between the OIS holder 310 and the AF holder 210. The fourth portion 714 may be disposed between the fourth side of the OIS holder 310 and the AF holder 210.

However, in the 'first to fourth sides' of the OIS holder 310 described in this specification, 'first to fourth' are only used to distinguish the sides from each other, so they may be called differently as needed. For example, the 'second side' may be referred to as the 'first side' and the 'third side' may be referred to as the 'second side'.

The inner substrate 710 may include a terminal 714a. The fourth portion 714 of the inner substrate 710 may include a terminal 714a. Terminal 714a may be electrically connected to coils 420, 520, and 620. Terminal 714a may be electrically connected to sensors 430, 530, and 630.

The inner substrate 710 may include a hole 714b. The fourth portion 714 of the inner substrate 710 may include a hole 714b. The hole 714b may be formed through the fourth portion 714 of the inner substrate 710. The hole 714b may be placed in a position corresponding to the side stopper of the OIS holder 310. The inner substrate 710 may not interfere with the side stopper of the OIS holder 310 due to the hole 714b.

The lens driving device 10 may include an outer substrate 720. The outer substrate 720 may be placed on the base 110. The outer substrate 720 may be electrically connected to the coils 420, 520, and 620. The outer substrate 720 may be electrically connected to the sensors 430, 530, and 630. The outer substrate 720 can connect the AF holder 210 and the base 110. The outer substrate 720 can elastically connect the AF holder 210 and the base 110. The outer substrate 720 can support the AF holder 210 to be movable with respect to the base 110. The outer substrate 720 can guide the AF holder 210 to move in the optical axis direction with respect to the base 110. The outer substrate 720 may include a flexible substrate. The outer substrate 720 may include a flexible printed circuit board (FPCB). The outer substrate 720 may include an elastic portion. The outer substrate 720 may include an elastic member.

The outer substrate 720 may include a body portion 721. The body portion 721 may be disposed on the fixing portion 100. The body portion 721 may be disposed on the base 110. The body portion 721 may be formed to surround the side of the base 110. The body portion 721 may be disposed on three sides of the base 110. The body portion 721 may include two terminal portions. The two terminal units may be disposed opposite to each other with respect to the optical axis. The terminal portion may include a terminal 721a.

The outer substrate 720 may include a terminal 721a. The body portion 721 of the outer substrate 720 may include a terminal 721a. Terminal 721a may be electrically connected to terminal 722a. The terminal 721a may be disposed at the bottom of the base 110. Terminal 721a may be coupled to the printed circuit board 50. The terminal 721a may be coupled to the terminal of the printed circuit board 50 through solder. The terminal 721a may be coupled to the terminal of the printed circuit board 50 through a conductive member. Terminal 721a may be connected to a terminal of the printed circuit board 50. The terminal 721a may be electrically connected to a terminal of the printed circuit board 50.

The outer substrate 720 may include an extension portion 722. The extension part 722 may be a 'leg part'. The extension portion 722 may extend from the body portion 721. At least a portion of the extension part 722 can move together with the AF moving part 200. At least a portion of the extension portion 722 can move together with the AF holder 210. The extension portion may extend from the body portion 721. The extension portion 722 may include a plurality of leg portions. The extension part 722 may include a first leg part and a second leg part. The second leg portion may be disposed below the first leg portion.

The outer substrate 720 may include a terminal 722a. The extension portion 722 of the outer substrate 720 may include a terminal 722a. The terminal 722a may be coupled to the terminal 714a of the inner substrate 710. The terminal 722a may be connected to the terminal 714a of the inner substrate 710 through solder. The terminal 722a may be coupled to the terminal 714a of the inner substrate 710 through a conductive member. The terminal 722a may be connected to the terminal 714a of the inner substrate 710. The terminal 722a may be electrically connected to the terminal 714a of the inner substrate 710.

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 movement of the moving part with respect to the fixed part 100 in a specific direction.

The lens driving device 10 may include an AF guide ball 810. The AF guide ball 810 can guide the movement of the AF holder 210 relative to the base 110 in the optical axis direction. The AF guide ball 810 may be placed between the base 110 and the AF holder 210. The AF guide ball 810 may be disposed between the base 110 and the AF holder 210 in the x-axis direction. The AF guide ball 810 may be placed in the groove 111a of the base 110. The AF guide ball 810 may be placed in the first groove 214 of the AF holder 210. The AF guide ball 810 is a 1-1 ball that contacts the base 110 and the AF holder 210 at 4 points, and a 1-2 ball that contacts the base 110 and the AF holder 210 at 3 points. Can contain balls. The AF guide ball 810 may have a spherical shape. The AF guide ball 810 may be formed of metal. Grease may be applied to the surface of the AF guide ball 810.

The AF guide ball 810 may include a plurality of balls. The AF guide ball 810 may include eight balls. Four AF guide balls 810 may be placed on one side of the AF magnet 410, and the remaining four AF guide balls 810 may be placed on the other side of the AF magnet 410.

The lens driving device 10 may include an OIS guide ball 820. The OIS guide ball 820 can guide the movement of the OIS holder 310 relative to the AF holder 210 in a direction perpendicular to the optical axis. The OIS guide ball 820 may be placed between the AF holder 210 and the OIS holder 310. The OIS guide ball 820 may be disposed between the AF holder 210 and the OIS holder 310 in the optical axis direction. The OIS guide ball 820 may overlap the AF moving unit 200 and the OIS moving unit 300 in the optical axis direction. The OIS guide ball 820 may be disposed between the AF moving unit 200 and the OIS moving unit 300 in the optical axis direction.

The OIS guide ball 820 may be placed between the AF holder 210 and the OIS holder 310. The OIS guide ball 820 may be pressed between the AF holder 210 and the OIS holder 310 by the pressing force of the elastic member.

The OIS guide ball 820 can guide the OIS holder 310 to move in the x-axis direction and y-axis direction perpendicular to the optical axis direction with respect to the AF holder 210. That is, the OIS guide ball 820 can guide the OIS holder 310 to move in the x-axis direction and the y-axis direction. In other words, the OIS guide ball 820 can guide movement in both the x-axis direction and the y-axis direction. For reference, compared to the comparative example in which the ball for guiding the x-axis direction and the ball for guiding the y-axis direction are separately provided, this embodiment includes the ball for guiding the The size of the lens driving device 10 can be minimized. In particular, the height of the lens driving device 10 in the optical axis direction may be reduced. Through this, the height protruding from the smartphone, that is, shoulder height, can be minimized. The OIS guide ball 820 may include a plurality of balls. The OIS guide ball 820 may include four balls.

When viewed from above, the OIS guide ball 820 may be disposed within a space formed through the inner portion 921, the coupling portion 922, and the connecting portion 923 of the upper elastic member 920. When viewed from above, the inner portion 921, the coupling portion 922, and the connecting portion 923 of the upper elastic member 920 may form a closed curve. At this time, the OIS guide ball 820 may be placed in the space within the closed curve formed by the inner portion 921, the coupling portion 922, and the connecting portion 923 of the upper elastic member 920.

The lens driving device 10 may include a yoke 830. The yoke 830 may be disposed on the first portion 711 of the inner substrate 710. An attractive force may be generated between the yoke 830 and the AF magnet 410. The yoke 830 may be placed in a position corresponding to the AF magnet 410. The yoke 830 may be formed of metal. The AF guide ball 810 may be pressed between the base 110 and the AF holder 210 by the attractive force between the yoke 830 and the AF magnet 410. That is, the contact state of the AF guide ball 810 with the base 110 and the AF holder 210 can be maintained by the attractive force between the yoke 830 and the AF magnet 410.

The lens driving device 10 may include an elastic member. The elastic member may be formed to press the OIS guide ball 820. The elastic member can be formed 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 formed of metal.

The lens driving device 10 may include a lower elastic member 910. The lower elastic member 910 may be a leaf spring. The lower elastic member 910 may have elasticity. The lower elastic member 910 may be disposed on the lower surface of the AF holder 210. The lower elastic member 910 may be disposed on the AF holder 210. The lower elastic member 910 may be disposed below the AF holder 210. The lower elastic member 910 may be disposed below the AF holder 210. The lower elastic member 910 may be disposed on the lower surface of the body portion 721. The lower elastic member 910 may be coupled to the lower surface of the body portion 721. The lower elastic member 910 may be disposed perpendicular to the optical axis.

The lower elastic member 910 may include a plurality of elastic units spaced apart from each other. The lower elastic member 910 may include first to fourth elastic units corresponding to the first to fourth wires 931, 932, 933, and 934. The first to fourth elastic units may be spaced apart from each other.

The lower elastic member 910 may include an outer portion 911. The outer part 911 may be combined with the AF moving part 200. The lower elastic member 910 may include a coupling portion 912. The coupling portion 912 may be coupled to the wire 930. The lower elastic member 910 may include a connection portion 913. The connection portion 913 may connect the outer portion 911 and the coupling portion 912. The coupling portion 912 of the lower elastic member 910 may be disposed lower than the outer portion 911 of the lower elastic member 910.

Hereinafter, one of the outer portion 911, the coupling portion 912, and the connecting portion 913 of the lower elastic member 910 is referred to as the “first portion,” the other is referred to as the “second portion,” and the other is referred to as the “third portion.” It can be called “part.” Hereinafter, one of the outer portion 911, the coupling portion 912, and the connecting portion 913 of the lower elastic member 910 is referred to as the “first region,” the other is referred to as the “second region,” and the other is referred to as the “third region.” It can be called “area.”

The lens driving device 10 may include an upper elastic member 920. The upper elastic member 920 may be a leaf spring. The upper elastic member 920 may have elasticity. The upper elastic member 920 may be disposed on the upper surface of the OIS holder 310. The upper elastic member 920 may be disposed on the OIS holder 310. The upper elastic member 920 may be disposed at the top of the OIS holder 310. The upper elastic member 920 may be disposed on the OIS holder 310. The upper elastic member 920 may be disposed perpendicular to the optical axis. The upper elastic member 920 may be formed integrally.

The upper elastic member 920 may include an inner portion 921. The inner part 921 may be combined with the OIS moving part 300. The upper elastic member 920 may include a coupling portion 922. The coupling portion 922 may be coupled to the wire 930. The upper elastic member 920 may include a connection portion 923. The connection portion 923 may connect the inner portion 921 and the coupling portion 922. The coupling portion 922 of the upper elastic member 920 may be disposed higher than the inner portion 921 of the upper elastic member 920.

Hereinafter, one of the inner part 921, the coupling part 922, and the connecting part 923 of the upper elastic member 920 is referred to as the “first part,” the other is referred to as the “second part,” and the other is referred to as the “third part.” It can be called “part.” Hereinafter, one of the inner portion 921, the coupling portion 922, and the connecting portion 923 of the upper elastic member 920 is referred to as the “first region,” the other is referred to as the “second region,” and the other is referred to as the “third region.” It can be called “area.”

The lower elastic member 910 may connect the first region of the wire 930 and the AF moving unit 200. The upper elastic member 920 may connect the second region of the wire 930 and the OIS moving unit 300. The second area of the wire 930 may be placed higher than the first area. That is, the first area of the wire 930 may be placed lower than the second area.

As shown in FIGS. 22A and 22B, in the optical axis direction, the distance between the first region (a) and the second region (d) of the wire 930 is the outer portion 911 (b) of the lower elastic member 910. It may be longer than the distance between the inner portion 921(c) of the upper elastic member 920. The first area (a) of the wire 930 may be disposed lower than the outer portion 911 (b) of the lower elastic member 910. A first gap ga may be formed in the optical axis direction between the first area (a) of the wire 930 and the outer portion 911 (b) of the lower elastic member 910. The second region (d) of the wire 930 may be placed higher than the inner portion 921 (c) of the upper elastic member 920. A second gap (gb) may be formed in the optical axis direction between the second region (d) of the wire 930 and the inner portion 921 (c) of the upper elastic member 920.

Through this structure, the OIS guide ball 820 can be pressed between the AF moving unit 200 and the OIS moving unit 300 by the lower elastic member 910, upper elastic member 920, and wire 930. there is. That is, through this structure, the OIS guide ball 820 can be pressed between the AF holder 210 and the OIS holder 310 by the lower elastic member 910, upper elastic member 920, and wire 930. there is.

As a modified example, in the optical axis direction, the distance between the first region (a) and the second region (d) of the wire 930 is the outer portion 911 (b) of the lower elastic member 910 and the upper elastic member 920. It may be equal to the distance between the inner portions 921 (c) of .

As a modified example, the first region (a) of the wire 930 may be disposed at the same height as the outer portion 911 (b) of the lower elastic member 910. Alternatively, the second region (d) of the wire 930 may be disposed at the same height as the inner portion 921 (c) of the upper elastic member 920.

The lens driving device 10 may include a wire 930. The wire 930 may be a ‘side elastic member’. Wire 930 may be a wire spring. Wire 930 may be a suspension wire. The wire 930 may have elasticity. The wire 930 may connect the upper elastic member 920 and the lower elastic member 910. The wire 930 may elastically connect the upper elastic member 920 and the lower elastic member 910. The wire 930 may be arranged parallel to the optical axis. The wire 930 may be arranged parallel to the optical axis direction.

Wire 930 may include a plurality of wires. Wire 930 may include four wires. The wire 930 may include first to fourth wires 931, 932, 933, and 934. The wire 930 may include first to fourth wires 931, 932, 933, and 934 respectively disposed in the first to fourth corner areas of the fixing part 100.

Hereinafter, auto focus (AF) operation of the lens driving device according to this embodiment will be described with reference to the drawings.

26 to 28 are diagrams for explaining autofocus driving of the lens driving device according to this embodiment. Figure 26 is a cross-sectional view showing the moving part in the initial state in which no current is applied to the AF coil. Figure 27 is a cross-sectional view showing the moving part moving upward in the optical axis direction when a forward current is applied to the AF coil. Figure 28 is a cross-sectional view showing the moving part moving downward in the optical axis direction when a reverse current is applied to the AF coil.

The moving part may be disposed at a position spaced apart from both the upper plate 121 and the base 110 of the cover 120 in an initial position where no current is applied to the AF coil 420. At this time, the moving unit may be the AF moving unit 200. Additionally, the moving unit may include an AF moving unit 200 and an OIS moving unit 300.

When a forward current is applied to the AF coil 420, the AF coil 420 can move upward in the optical axis direction due to electromagnetic interaction between the AF coil 420 and the AF magnet 410 (see A in FIG. 27). At this time, the AF holder 210 along with the AF coil 420 may move upward in the optical axis direction. Furthermore, the OIS holder 310 and the lens along with the AF holder 210 can move upward in the optical axis direction. Accordingly, the distance between the lens and the image sensor can be changed to adjust the focus of the image formed on the image sensor through the lens.

When a reverse current is applied to the AF coil 420, the AF coil 420 can move downward in the optical axis direction due to electromagnetic interaction between the AF coil 420 and the AF magnet 410 (see B in FIG. 28). At this time, the AF holder 210 along with the AF coil 420 may move downward in the optical axis direction. Furthermore, the OIS holder 310 and the lens along with the AF holder 210 can move downward in the optical axis direction. Accordingly, the distance between the lens and the image sensor can be changed to adjust the focus of the image formed on the image sensor through the lens.

Meanwhile, during the movement of the AF coil 420, the AF sensor 430 moves along with the AF coil 420 and detects the strength of the magnetic field of the AF magnet 410 to detect the amount of movement or position of the lens in the optical axis direction. You can. 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.

Hereinafter, optical image stabilization (OIS) operation of the lens driving device according to this embodiment will be described with reference to the drawings.

29 to 31 are diagrams for explaining the image stabilization operation of the lens driving device according to this embodiment. Figure 29 is a cross-sectional view showing the moving part in the initial state in which no current is applied to the OIS-x coil and OIS-y coil. Figure 30 is a cross-sectional view showing the OIS moving part moving in the x-axis direction perpendicular to the optical axis when current is applied to the OIS-x coil. Figure 31 is a cross-sectional view showing how current is applied to the OIS-y coil and the OIS moving part moves in the y-axis direction perpendicular to both the optical axis and the x-axis.

As shown in FIG. 29, the moving part may be placed in an initial position where no current is applied to the OIS-x coil 520 and OIS-y coil 620. At this time, the moving part may be the OIS moving part 300.

When current is applied to the OIS-x coil 520, the OIS-x coil 520 moves 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. It can be moved (see a in Figure 30). At this time, the OIS holder 310 along with the OIS-x coil 520 can move in the x-axis direction. 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 coil 520, OIS holder 310, and lens can move in one direction on the x-axis. Additionally, when reverse current is applied to the OIS-x coil 520, the OIS-x coil 520, OIS holder 310, and lens may move in other directions on the x-axis.

When current is applied to the OIS-y coil 620, the OIS-y coil 620 moves 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. It can be moved (see b in Figure 31). At this time, the OIS holder 310 along with the OIS-y coil 620 can move in the y-axis direction. Furthermore, the lens can move in the y-axis direction together with the OIS holder 310. More specifically, when a forward current is applied to the OIS-y coil 620, the OIS-y coil 620, OIS holder 310, and lens can move in one direction on the y-axis. Additionally, when a reverse current is applied to the OIS-y coil 620, the OIS-y coil 620, OIS holder 310, and lens may move in other directions on the y-axis.

Meanwhile, the OIS-x sensor 530 can detect the amount of movement or position of the OIS-x coil 520 by detecting the strength of the magnetic field of the OIS-x magnet 510. The movement amount or position detected by the OIS-x sensor 530 can be used for hand shake correction feedback control in the x-axis direction. The OIS-y sensor 630 can detect the amount of movement or position of the OIS-y coil 620 by detecting the strength of the magnetic field of the OIS-y magnet 610. The amount of movement or position detected by the OIS-y sensor 630 can be used for y-axis direction image stabilization feedback control.

Hereinafter, the camera device according to this embodiment will be described with reference to the drawings.

Figure 32 is an exploded perspective view of the camera device according to this embodiment.

The camera device 10A may include a camera module.

Camera device 10A may include a lens module 20. The lens module 20 may include at least one lens. The lens may be placed in a position corresponding to the image sensor 60. The lens module 20 may include a lens and a barrel. The lens module 20 may be coupled to the OIS holder 310 of the lens driving device 10. The lens module 20 may be coupled to the OIS holder 310 by screwing and/or adhesive. The lens module 20 can be moved integrally with the OIS holder 310.

Camera device 10A may include a filter 30. The filter 30 may serve to block light in a specific frequency band from light passing through the lens module 20 from entering the image sensor 60 . Filter 30 may be arranged parallel to the x-y plane. The filter 30 may be disposed between the lens module 20 and the image sensor 60. Filter 30 may be placed on sensor base 40. As a variant, the filter 30 may be disposed on the base 110. Filter 30 may include an infrared filter. The infrared filter can block light in the infrared region from being incident on the image sensor 60.

Camera device 10A may include a sensor base 40. The sensor base 40 may be disposed between the lens driving device 10 and the printed circuit board 50. The sensor base 40 may include a protrusion 41 on which the filter 30 is disposed. An opening may be formed in the portion of the sensor base 40 where the filter 30 is disposed to allow light passing through the filter 30 to enter the image sensor 60 . The adhesive member may couple or adhere the base 310 of the lens driving device 10 to the sensor base 40. The adhesive member may additionally serve to prevent foreign substances from entering the interior of the lens driving device 10. The adhesive member may include one or more of epoxy, thermosetting adhesive, and ultraviolet curing adhesive.

The camera device 10A may include a printed circuit board (PCB) 50. The printed circuit board 50 may be a board or a circuit board. A lens driving device 10 may be disposed on the printed circuit board 50. A sensor base 40 may be disposed between the printed circuit board 50 and the lens driving device 10. The printed circuit board 50 may be electrically connected to the lens driving device 10. An image sensor 60 may be disposed on the printed circuit board 50. The printed circuit board 50 may be equipped with various circuits, elements, and control units to convert the image formed on the image sensor 60 into an electrical signal and transmit it to an external device.

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

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

The camera device 10A may include a control unit 80. The control unit 80 may be disposed on the printed circuit board 50. The control unit 80 may be electrically connected to the coil 330 of the lens driving device 10. The control unit 80 can individually control the direction, intensity, and amplitude of the current supplied to the coil 330. The control unit 80 may control the lens driving device 10 to perform an autofocus function and/or an image stabilization function. Furthermore, the control unit 80 may perform autofocus feedback control and/or camera shake correction feedback control for the lens driving device 10.

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 electrical connection to an external device.

Hereinafter, the optical device according to this embodiment will be described with reference to the drawings.

Figure 33 is a perspective view of an optical device according to this embodiment, and Figure 34 is a perspective view of an optical device according to a modification.

Optical devices (1) include cell phones, mobile phones, portable terminals, mobile terminals, smart phones, smart pads, portable smart devices, digital cameras, laptop computers, digital broadcasting terminals, and PDAs (Personal Digital Assistants). , PMP (Portable Multimedia Player), and navigation may be included. The optical device 1 may include any device for taking images or photos.

The optical device 1 may include a body 20. The optical device 1 may include a camera device 10A. The camera device 10A may be placed in the main body 20. The camera device 10A can photograph a subject. The optical device 1 may include a display. The display may be placed on the main body 20. The display may output one or more of a video or an image captured by the camera device 10A. The display may be placed on the first side of the main body 20. The camera device 10A may be disposed on one or more of the first side of the main body 20 and the second side opposite the first side. As shown in FIG. 33, the camera device 10A may have triple cameras arranged vertically. As shown in FIG. 34, the camera device 10A-1 may have triple cameras arranged in the horizontal direction.

Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical idea or essential features. You will be able to understand it. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

Claims (16)

fixing part;
a first moving part disposed within the fixing part;
a second moving part disposed within the first moving part;
a first driving unit that moves the first moving unit in the optical axis direction;
a second driving unit that moves the second moving unit in a first direction perpendicular to the optical axis direction;
a third driving unit that moves the second moving unit in a second direction perpendicular to the optical axis direction and the first direction;
a first ball disposed between the first moving part and the second moving part so as to overlap the first moving part and the second moving part in the optical axis direction;
a wire disposed parallel to the optical axis direction;
a first elastic member connecting a first region of the wire and the first moving part; and
A lens driving device comprising a second elastic member connecting a second region of the wire and the second moving part. According to paragraph 1,
A lens driving device wherein the second area of the wire is disposed higher than the first area. According to paragraph 2,
The first moving part includes a top plate disposed higher than the second moving part,
The first ball is a lens driving device disposed between the upper plate of the first moving part and the second moving part. According to paragraph 1,
The first elastic member includes an outer portion coupled to the first moving portion,
The second elastic member includes an inner part coupled to the second moving part,
In the optical axis direction, the distance between the first region and the second region of the wire is longer than the distance between the outer portion of the first elastic member and the inner portion of the second elastic member. According to paragraph 1,
The first elastic member includes an outer part coupled to the first moving part, a coupling part coupled to the wire, and a connection part connecting the outer part and the coupling part,
A lens driving device wherein the coupling portion of the first elastic member is disposed lower than the outer portion of the first elastic member. According to clause 5,
The second elastic member includes an inner part coupled to the second moving part, a coupling part coupled to the wire, and a connection part connecting the inner part and the coupling part,
A lens driving device wherein the coupling portion of the second elastic member is disposed higher than the inner portion of the second elastic member. According to clause 6,
When viewed from above, the first ball is disposed in a space formed through the inner portion, the coupling portion, and the connecting portion of the second elastic member. According to clause 6,
The second moving part includes a first protrusion and a second protrusion formed on the upper surface of the second moving part,
The inner portion of the second elastic member includes a first region coupled to the first projection and a second region coupled to the second projection,
The wire includes a first wire disposed in a first corner area of the fixture,
The coupling portion of the second elastic member includes a first coupling portion coupled to the first wire,
The connecting portion of the second elastic member includes a first connecting portion connecting the first region of the inner portion and the first coupling portion, and a second connecting portion connecting the second region of the inner portion and the first coupling portion. Lens driving device. According to clause 8,
The coupling portion of the first elastic member includes a first coupling portion coupled to the first wire,
The connection part of the first elastic member includes a first connection part and a second connection part connecting the outer part of the first elastic member and the first coupling part of the first elastic member,
When viewed from below, the first and second connecting portions of the first elastic member are symmetrical with respect to an imaginary straight line connecting the optical axis and the first corner area of the fixing portion. According to paragraph 1,
The wire includes first to fourth wires respectively disposed in first to fourth corner areas of the fixing part,
The first elastic member includes first to fourth elastic units corresponding to the first to fourth wires,
The first to fourth elastic units are spaced apart from each other,
A lens driving device wherein the second elastic member is formed integrally. According to paragraph 1,
The first driving unit includes a first coil disposed on the first moving portion and a first magnet disposed on the fixed portion,
The second driving unit includes a second coil disposed on the second moving unit and a second magnet disposed on the fixed unit. According to clause 11,
A lens driving device wherein the third driving unit includes a third coil disposed on the second moving unit and a third magnet disposed on the fixed unit. According to clause 12,
A first substrate including a first part disposed on the first movable part, a second part disposed on a first side of the second movable part, and a third part disposed on a second side of the second movable part. Contains,
The first coil is disposed on the first portion of the first substrate,
The second coil is disposed on the second portion of the first substrate,
The third coil is a lens driving device disposed on the third portion of the first substrate. According to clause 13,
It includes a second substrate including a body portion disposed on the fixing portion and an extension portion extending from the body portion,
The extension portion includes a terminal coupled to a terminal of the first board,
A lens driving device in which at least a portion of the extension part moves together with the first moving part. printed circuit board;
an image sensor disposed on the printed circuit board;
The lens driving device of any one of claims 1 to 14 disposed on the printed circuit board; and
A camera device including a lens coupled to the lens driving device. main body;
The camera device of claim 15 disposed in the main body; and
An optical device including a display disposed on the main body and outputting at least one of a video captured by the camera device and an image.

Images