Optical unit with shake correction function

Abstract

To provide an optical unit with a tremor correction function that can prevent a damage of a wiring substrate to be led out from a camera module, while achieving miniaturization in the optical unit attached with the tremor correction function in a pitching direction and a yawing direction.SOLUTION: According the present optical unit attached with the tremor correction function, in an intermediate member holding part 17, formed are: a first inside wall surface 17c to be arranged inside a first belt-like part 10j of a wiring substrate 10 in a Y-direction; and a second inside wall surface 17d to be arranged inside a second belt-like part 10k of the wiring substrate 10 in an X-direction, and in an outer peripheral side covering part 18b, formed are: a first outside wall surface 18c to be arranged outside the first belt-like part 10j in the Y-direction; and a second outside wall surface 18d to be arranged outside the second belt-like part 10k in the X- direction. An interval D1 between the first inside wall surface 17c and the first outside wall surface 18c is narrower than an interval D2 between the first inside wall surface 17c and the second outside wall surface 18d.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to an optical unit with a shake correction function that is mounted on a portable device or the like. [Background technology]

[0002] Conventionally, optical units with a shake correction function that are mounted on portable devices and the like are known (see, for example, Patent Document 1). The optical unit described in Patent Document 1 includes a movable body having an optical module, a fixed body that rotatably holds the movable body, and a flexible printed circuit board that is drawn out from the optical module. The movable body is rotatable relative to the fixed body around the optical axis of the optical module as the rotation center, and this optical unit is capable of shake correction in the rolling direction. This optical unit is also capable of shake correction in the pitching direction and the yawing direction.

[0003] In the optical unit described in Patent Document 1, the fixed body includes an external casing arranged on the outer periphery of the movable body. The external casing has a square outer shape when viewed in the optical axis direction, which is the direction of the optical axis of the optical module. The flexible printed circuit board includes a strip-shaped portion routed along two adjacent side surfaces in the circumferential direction out of four side surfaces that form the outer periphery of the external casing. One end of the strip-shaped portion is fixed to a holder frame of the movable body, and the other end of the strip-shaped portion is fixed to the external casing. A gap is formed between the side surface of the external casing and the strip-shaped portion. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2020-27134 Summary of the Invention [Problem to be solved by the invention]

[0005] The inventors of the present application have developed an optical unit with shake correction function that does not perform shake correction in the roll direction, but performs shake correction in the pitch direction and the yawing direction. This optical unit with shake correction function is equipped with a camera module, from which a wiring board such as a flexible printed circuit board is drawn. Because this optical unit with shake correction function may be installed in mobile devices such as smartphones, it is preferable that it be small.

[0006] Furthermore, in this optical unit with shake correction function, the wiring board drawn out from the camera module moves in conjunction with the operation of the camera module when performing shake correction in the pitching and yawing directions. The wiring board, which moves in conjunction with the operation of the camera module when performing shake correction in the pitching and yawing directions, may be damaged over time if it repeatedly comes into contact with other components as the wiring board moves. Furthermore, damage to the wiring board may impair the imaging function of the camera module.

[0007] Therefore, an object of the present invention is to provide an optical unit with shake correction function that has shake correction functions in the pitching direction and yawing direction, and that can be made compact while preventing damage to the wiring board that is pulled out from the camera module. [Means for solving the problem]

[0008] In order to solve the above problems, the optical unit with shake correction function of the present invention comprises a movable body having a camera module, an intermediate member that rotatably holds the movable body, a fixed body that rotatably holds the intermediate member, a magnetic drive mechanism for rotating the movable body relative to the fixed body so that the optical axis of the camera module is tilted in a desired direction, and a wiring board that is drawn out from the camera module, wherein a direction perpendicular to the optical axis of the camera module placed at a predetermined reference position is defined as a first direction, a direction perpendicular to the optical axis of the camera module placed at the reference position and the first direction is defined as a second direction, and one side in the optical axis direction that is the direction of the optical axis of the camera module is defined as the subject side, and the opposite side from the subject side is defined as the opposite side to the subject side, the fixed body comprises an intermediate member holding part that rotatably holds the intermediate member, and an outer circumferential side cover part that covers the outer circumferential side of the intermediate member holding part, and the wiring board comprises a module mounting part attached to an end face of the camera module on the opposite side to the subject, a drawer part that is drawn out from the module mounting part to the outer circumferential side of the camera module, and a long, thin, strip-like wiring board that has one end connected to the drawer part and is drawn around on the outer circumferential side of the intermediate member holding part and on the inner circumferential side of the outer circumferential side cover part. and a fixed portion connected to the other end of the strip-shaped portion and fixed to the outer peripheral surface of the intermediate member holding portion, when viewed from the optical axis direction when the optical axis of the camera module is at a reference position, the outer shape of the intermediate member holding portion is square or rectangular, and the four sides that make up the outer peripheral surface of the intermediate member holding portion are parallel to the first direction or the second direction, and when one of the two sides of the intermediate member holding portion that are parallel to the first direction is defined as the first side and one of the two sides of the intermediate member holding portion that are parallel to the second direction is defined as the second side, the width direction of the strip-shaped portion is the optical axis of the module is parallel to the optical axis direction when it is in the reference position, the pull-out portion is pulled out from the module mounting portion at the second side toward one side in the first direction, the strip-shaped portion is routed along the first side and the second side, the fixed portion is fixed to the outer circumferential surface of the intermediate member holding portion at the first side, and the portion of the strip-shaped portion arranged along the first side is referred to as the first strip-shaped portion and the portion of the strip-shaped portion arranged along the second side is referred to as the second strip-shaped portion, the intermediate member holding portion has a first inner wall surface that is planar and arranged inside the first strip-shaped portion in the second direction and is perpendicular to the second direction,The outer circumferential cover portion is formed with a planar second inner wall surface that is disposed inside the second band-shaped portion in the first direction and is perpendicular to the first direction, and the outer circumferential cover portion is formed with a planar first outer wall surface that is disposed outside the first band-shaped portion in the second direction and is parallel to the first inner wall surface, and a planar second outer wall surface that is disposed outside the second band-shaped portion in the first direction and is parallel to the second inner wall surface, and the distance between the first inner wall surface and the first outer wall surface in the second direction is narrower than the distance between the second inner wall surface and the second outer wall surface in the first direction.

[0009] In the optical unit with shake correction function of the present invention, the wiring board pulled out from the camera module is on the outer periphery of the intermediate member holding part that rotatably holds the intermediate member, and has a long, thin, strip-shaped portion that is routed around the inner periphery of the outer periphery cover part that covers the outer periphery of the intermediate member holding part, and the strip-shaped portion is routed along the first and second sides of the intermediate member holding part. Furthermore, in the present invention, when the portion of the band-shaped portion arranged along the first side is defined as the first band-shaped portion and the portion of the band-shaped portion arranged along the second side is defined as the second band-shaped portion, the intermediate member holding portion is formed with a planar first inner wall surface arranged inside the first band-shaped portion in the second direction and perpendicular to the second direction, and a planar second inner wall surface arranged inside the second band-shaped portion in the first direction and perpendicular to the first direction, and the outer peripheral cover portion is formed with a planar first outer wall surface arranged outside the first band-shaped portion in the second direction and parallel to the first inner wall surface, and a planar second outer wall surface arranged outside the second band-shaped portion in the first direction and parallel to the second inner wall surface.

[0010] Furthermore, in the present invention, the distance between the first inner wall surface and the first outer wall surface in the second direction is narrower than the distance between the second inner wall surface and the second outer wall surface in the first direction. In this way, in the present invention, the distance between the first inner wall surface and the first outer wall surface in the second direction is narrower than the distance between the second inner wall surface and the second outer wall surface in the first direction, so it is possible to make the optical unit with shake correction function more compact in the second direction compared to when the distance between the first inner wall surface and the first outer wall surface in the second direction is the same as the distance between the second inner wall surface and the second outer wall surface in the first direction.

[0011] Furthermore, in the present invention, the pull-out portion to which one end of the strip is connected is pulled out toward one side in the first direction from the module mounting portion attached to the end face of the camera module on the opposite side to the subject at the second edge of the intermediate member holding portion, and the fixed portion connected to the other end of the strip is fixed to the outer peripheral surface of the intermediate member holding portion at the first edge.Therefore, as the camera module operates when performing shake correction in the pitching or yawing direction, the second strip arranged along the second edge moves relatively significantly, but the first strip arranged along the first edge does not move as significantly as the second strip.

[0012] Furthermore, in the present invention, the distance between the second inner wall surface and the second outer wall surface in the first direction is wider than the distance between the first inner wall surface and the first outer wall surface in the second direction, and the distance between the second inner wall surface and the second outer wall surface in the first direction is relatively wide. Therefore, even if the second band portion moves significantly due to the operation of the camera module when performing shake correction in the pitching direction or yaw direction, the second band portion disposed between the second inner wall surface and the second outer wall surface can be prevented from contacting the second inner wall surface and the second outer wall surface. Therefore, in the present invention, damage to the second band portion can be prevented. Specifically, damage to the second band portion caused by repeated contact of the second band portion with the second inner wall surface and the second outer wall surface can be prevented.

[0013] Furthermore, in the present invention, the first band-shaped portion does not move as much as the second band-shaped portion in response to the movement of the camera module when performing shake correction in the pitching or yawing direction. Therefore, even if the distance between the first inner wall surface and the first outer wall surface in the second direction is narrower than the distance between the second inner wall surface and the second outer wall surface in the first direction, the first band-shaped portion disposed between the first inner wall surface and the first outer wall surface can be prevented from contacting the first inner wall surface and the first outer wall surface when the first band-shaped portion moves in response to the movement of the camera module when performing shake correction in the pitching or yawing direction. Therefore, in the present invention, damage to the first band-shaped portion can be prevented. Specifically, damage to the first band-shaped portion caused by repeated contact of the first band-shaped portion with the first inner wall surface and the first outer wall surface can be prevented.

[0014] As described above, the present invention makes it possible to prevent damage to the first and second bands while miniaturizing the optical unit with shake correction function in the second direction. Therefore, the present invention makes it possible to prevent damage to the wiring board drawn out from the camera module while miniaturizing the optical unit with shake correction function.

[0015] In the present invention, for example, the strip portion is formed by a flexible printed circuit board.

[0016] In the present invention, for example, the intermediate member holding portion comprises a first upper wall portion arranged on the subject side of the first band-shaped portion and a second upper wall portion arranged on the subject side of the second band-shaped portion, the surface of the first upper wall portion opposite the subject being a first upper wall surface to which the subject side end of the first inner wall surface is connected and which extends outward in the second direction to cover the first band-shaped portion from the subject side, the surface of the second upper wall portion opposite the subject being a second upper wall surface to which the subject side end of the second inner wall surface is connected and which extends outward in the first direction to cover the second band-shaped portion from the subject side, the outer end surface of the first upper wall portion in the second direction is parallel to the first outer wall surface, the outer end surface of the second upper wall portion in the first direction is parallel to the second outer wall surface, and the width of the first upper wall surface in the second direction is narrower than the width of the second upper wall surface in the first direction.

[0017] In the present invention, for example, the wiring board is bent 90° at the boundary between the drawn-out portion and the strip-shaped portion, and the portion of the second strip-shaped portion facing the drawn-out portion is referred to as the base-side second strip-shaped portion and the portion of the second strip-shaped portion facing the first strip-shaped portion is referred to as the tip-side second strip-shaped portion, and the subject-side end face of the base-side second strip-shaped portion is located closer to the subject than the subject-side end face of the tip-side second strip-shaped portion, and the second upper wall portion has a notch formed therein to prevent interference between the base-side second strip-shaped portion and the second upper wall portion. In this case, even if the subject-side end face of the base-side second strip-shaped portion is located closer to the subject than the subject-side end face of the tip-side second strip-shaped portion, it is possible to prevent interference between the base-side second strip-shaped portion and the second upper wall portion while miniaturizing the portion of the optical unit with shake correction where the second upper wall portion is formed in the optical axis direction of the camera module.

[0018] In the present invention, for example, the second band-shaped portion is routed to the end of the second side on the first side, the first band-shaped portion is routed from the end of the first side on the second side to the center of the first side, and the fixed portion is fixed to the outer peripheral surface of the intermediate member holding portion at the center of the first side. [Effects of the Invention]

[0019] As described above, in the present invention, in an optical unit with shake correction function that has shake correction functions in the pitching direction and the yawing direction, it is possible to reduce the size of the optical unit with shake correction function while preventing damage to the wiring board that is pulled out from the camera module. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a perspective view of an optical unit with a shake correction function according to an embodiment of the present invention; [Figure 2] FIG. 2 is an exploded perspective view of the optical unit with shake correction function shown in FIG. [Figure 3] 2 is a bottom view of the optical unit with shake correction function shown in FIG. 1 with a cover member removed. [Figure 4]4 is a perspective view showing the case body and the wiring board shown in FIG. 3. FIG. [Figure 5] 4 is a side view showing a part of the case body and a part of the wiring board shown in FIG. 3. FIG. [Figure 6] 4 is a perspective view showing a part of the case body shown in FIG. 3 from the bottom side. [Figure 7] FIG. 4 is an enlarged view for explaining the configuration of a portion E in FIG. 3. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0022] (Overall configuration of optical unit with shake correction function) Fig. 1 is a perspective view of an optical unit 1 with shake correction function according to an embodiment of the present invention. Fig. 2 is an exploded perspective view of the optical unit 1 with shake correction function shown in Fig. 1. Fig. 3 is a bottom view of the optical unit 1 with shake correction function shown in Fig. 1 with cover members 18 and 19 removed.

[0023] In the following description, as shown in Fig. 1 etc., three mutually orthogonal directions are referred to as the X direction, Y direction, and Z direction, with the X direction being the left-right direction, the Y direction being the front-to-back direction, and the Z direction being the up-to-down direction. Furthermore, the X1 direction side in Fig. 1 etc., which is one side of the left-to-right direction, is referred to as the "right" side, the opposite X2 direction side in Fig. 1 etc., is referred to as the "left" side, the Y1 direction side in Fig. 1 etc., which is one side of the front-to-back direction, is referred to as the "front" side, the opposite Y2 direction side in Fig. 1 etc., is referred to as the "rear" side, the Z1 direction side in Fig. 1 etc., which is one side of the up-to-down direction, is referred to as the "up" side, and the opposite Z2 direction side in Fig. 1 etc., is referred to as the "down" side.

[0024] The optical unit 1 with shake correction function (hereinafter referred to as "optical unit 1") of this embodiment is a small and thin unit that is mounted on a mobile device such as a smartphone, and includes a camera module 2 that has a lens for photographing and an image sensor. The optical unit 1 is equipped with a shake correction function to prevent distortion of the captured image when shake occurs during photographing. Specifically, the optical unit 1 is equipped with a shake correction function in the pitching direction and the yawing direction. On the other hand, the optical unit 1 is not equipped with a shake correction function in the rolling direction.

[0025] The optical unit 1 is formed as a thin, flat rectangular parallelepiped overall. The optical unit 1 of this embodiment is formed so that its shape is square when viewed in the optical axis direction, which is the direction of the optical axis L of the camera module 2. The four side surfaces of the optical unit 1 are parallel to the ZX plane formed by the left-right and up-down directions or the YZ plane formed by the front-rear and up-down directions.

[0026] The optical unit 1 includes a movable body 3 having a camera module 2, an intermediate member 4 that rotatably holds the movable body 3, and a fixed body 5 (see FIG. 1) that rotatably holds the intermediate member 4. The movable body 3 is rotatable relative to the intermediate member 4, with a first intersecting direction (direction V in FIG. 3) that intersects with the optical axis L of the camera module 2 as the axial direction of the rotation. In other words, the movable body 3 is rotatable relative to the intermediate member 4, with a first axis L1 (see FIG. 3) whose axial direction is the first intersecting direction as the rotation center. In this embodiment, the first intersecting direction is perpendicular to the optical axis L.

[0027] The intermediate member 4 is rotatable relative to the fixed body 5 around a second intersecting direction (W direction in FIG. 3) that intersects with the first intersecting direction and the optical axis L of the camera module 2 as the rotation axis direction. That is, the intermediate member 4 is rotatable relative to the fixed body 5 around a second axis L2 (see FIG. 3) whose axial direction is the second intersecting direction. In this embodiment, the second intersecting direction is perpendicular to the first intersecting direction. In this manner, a two-axis gimbal mechanism is configured between the movable body 3 and the fixed body 5.

[0028] In this embodiment, when no current is supplied to first drive coil 25 and second drive coil 27 (described later), movable body 3 and intermediate member 4 are placed at predetermined reference positions, and optical axis L of camera module 2 is placed at the predetermined reference position. When movable body 3 and intermediate member 4 are placed at the reference positions and optical axis L of camera module 2 is at the reference position, the optical axis direction of camera module 2 coincides with the up-down direction.

[0029] In this embodiment, the left-right direction (X direction) is a first direction that is perpendicular to the optical axis L of the camera module 2 placed at the reference position. The front-rear direction (Y direction) is a second direction that is perpendicular to the optical axis L of the camera module 2 placed at the reference position and the left-right direction, which is the first direction. Note that when shake correction is performed in the pitching and yawing directions, the inclination of the optical axis L of the camera module 2 with respect to the up-down direction is slight. Therefore, the direction of the optical axis of the camera module 2 is approximately the same as the up-down direction.

[0030] Furthermore, when the movable body 3 is disposed at a predetermined reference position, the second intersecting direction (W direction) is perpendicular to the optical axis L. That is, when the movable body 3 is disposed at a predetermined reference position and is not rotated relative to the intermediate member 4, the second intersecting direction is perpendicular to the optical axis L. On the other hand, when the movable body 3 is rotated relative to the intermediate member 4, the second intersecting direction intersects with the optical axis L but does not intersect at a right angle. When viewed from below, the second intersecting direction (W direction) is shifted by approximately 45° counterclockwise in FIG. 3 with respect to the front-to-rear direction.

[0031] The optical unit 1 is equipped with magnetic drive mechanisms 8 and 9 for rotating the movable body 3 relative to the fixed body 5 so that the optical axis L of the camera module 2 is tilted in a desired direction (see FIG. 3). The optical unit 1 also is equipped with a wiring board 10 drawn out from the camera module 2, and a wiring board 11 on which a first drive coil 25 (described later) constituting part of the magnetic drive mechanism 8 and a second drive coil 27 (described later) constituting part of the magnetic drive mechanism 9 are mounted. First fulcrum portions 12 are arranged at both ends of the intermediate member 4 in the first intersecting direction, serving as fulcrums for the rotation of the movable body 3 relative to the intermediate member 4. Second fulcrum portions 13 are arranged at both ends of the intermediate member 4 in the second intersecting direction, serving as fulcrums for the rotation of the intermediate member 4 relative to the fixed body 5.

[0032] The movable body 3 is formed into a flat, approximately rectangular parallelepiped shape with a thin overall thickness in the optical axis direction. The movable body 3 includes a holder 16 to which the camera module 2 is fixed. The holder 16 is formed of a resin material. The holder 16 is formed into a square frame shape, and when viewed from the optical axis direction with the movable body 3 and the intermediate member 4 disposed at the reference position, the outer shape of the holder 16 is square. Furthermore, when the movable body 3 and the intermediate member 4 are disposed at the reference position, two of the four sides constituting the outer peripheral surface of the square-shaped holder 16 are parallel to the front-to-rear direction, and the remaining two sides are parallel to the left-to-right direction.

[0033] The camera module 2 is fixed to the inner peripheral surface of the holder 16 so that the outer peripheral side of the camera module 2 is covered by the holder 16. As described above, the camera module 2 includes a lens and an imaging element. The imaging element is disposed on the lower end side of the camera module 2, and an object disposed above the camera module 2 is photographed by the camera module 2.

[0034] As described above, when shake correction in the pitching and yawing directions is performed, the inclination of the optical axis L of the camera module 2 with respect to the vertical direction is slight, and the optical axis direction of the camera module 2 approximately coincides with the vertical direction. Therefore, if one side in the optical axis direction of the camera module 2 (specifically, the side on which the subject is located in the optical axis direction of the camera module 2) is defined as the subject side, and the opposite side from the subject side (specifically, the side on which the imaging element is located in the optical axis direction of the camera module 2) is defined as the anti-subject side, the subject side approximately coincides with the upper side, and the anti-subject side approximately coincides with the lower side.

[0035] The intermediate member 4 is made of a metal material such as stainless steel. The intermediate member 4 is a leaf spring formed by bending a springy metal plate into a predetermined shape. The intermediate member 4 is composed of a base 4a disposed above the holder 16, two arms 4b extending from the base 4a toward both sides in the first intersecting direction, and two arms 4c extending from the base 4a toward both sides in the second intersecting direction. The base 4a is formed in a substantially square frame shape. The upper end of the camera module 2 is disposed on the inner periphery of the base 4a.

[0036] The tip ends of arms 4b and 4c are bent downward. Arm 4b is arranged on the inner circumferential side of holder 16. Arm 4c is arranged on the outer circumferential side of holder 16. Arm 4c is also arranged on the inner circumferential side of case body 17, which will be described later and which constitutes part of fixed body 5. A hemispherical recess is formed at the tip end of arm 4b, in which part of a sphere that constitutes part of first fulcrum portion 12 is disposed. A hemispherical recess is formed at the tip end of arm 4c, in which part of a sphere that constitutes part of second fulcrum portion 13 is disposed.

[0037] The fixed body 5 includes a frame-shaped case body 17 arranged outside the movable body 3 and the intermediate member 4, a cover member 18 covering the side and bottom surfaces of the case body 17, and a cover member 19 covering the top surface of the case body 17. The case body 17 is made of a resin material. The intermediate member 4 is rotatably held by the case body 17. The case body 17 in this embodiment is an intermediate member holding portion that rotatably holds the intermediate member 4.

[0038] The case body 17 is formed in the shape of a flat rectangular tube with both ends open in the vertical direction. The top surface of the case body 17 is a plane perpendicular to the vertical direction. When viewed from the vertical direction, the case body 17 has a square frame shape. That is, when the optical axis L of the camera module 2 is at a reference position, the outer shape of the case body 17 is square when viewed from the optical axis direction of the camera module 2. When viewed from the vertical direction, two of the four sides constituting the outer peripheral surface of the square-shaped case body 17 are parallel to the front-rear direction, and the remaining two sides are parallel to the left-right direction. That is, when viewed from the vertical direction, the four sides constituting the outer peripheral surface of the case body 17 are parallel to the front-rear direction or the left-right direction. A more specific configuration of the case body 17 will be described later.

[0039] The cover member 18 is formed in the shape of a square cylinder with a bottom, having a bottom 18a formed in the shape of a square plate and a square cylinder portion 18b rising upward from the bottom 18a. When viewed from the top and bottom, the outer shape of the cover member 18 is square. When viewed from the top and bottom, two of the four sides constituting the outer periphery of the square-shaped cover member 18 are parallel to the front-to-back direction, and the remaining two sides are parallel to the left-to-right direction.

[0040] The bottom portion 18a forms the bottom surface of the optical unit 1. The upper surface of the bottom portion 18a is a plane perpendicular to the up-down direction. The cylindrical portion 18b forms the side surface of the optical unit 1. The cylindrical portion 18b covers the outer periphery of the case body 17. Specifically, the cylindrical portion 18b covers the outer periphery of the case body 17 over almost the entire area in the up-down direction. The cylindrical portion 18b in this embodiment is an outer periphery covering portion that covers the outer periphery of the case body 17, which is an intermediate member holding portion. A more specific configuration of the cover member 18 will be described later.

[0041] The cover member 19 is mainly composed of a flat covering portion 19a that covers the upper surface of the case body 17. The cover member 19 is fixed to the upper end of the case body 17. The covering portion 19a is formed in the shape of a square frame. When viewed from the top and bottom, the cover member 19 has a square outer shape. When viewed from the top and bottom, two of the four sides that make up the outer surface of the square-shaped cover member 19 are parallel to the front-to-back direction, and the remaining two sides are parallel to the left-to-right direction. The camera module 2 and a part of the intermediate member 4 are arranged on the inner periphery of the covering portion 19a. The lower surface of the covering portion 19a is in contact with the upper surface of the case body 17.

[0042] A front surface portion 19b extending downward is connected to the front end of the covering portion 19a. Both the front and rear surfaces of the front surface portion 19b are flat surfaces perpendicular to the front-to-rear direction. A portion of the front surface portion 19b covers a portion of the wiring board 11 from the front. A right surface portion 19c extending slightly downward is connected to the right end of the covering portion 19a. A left surface portion 19d extending slightly downward is connected to the left end of the covering portion 19a. Both the left and right surfaces of the right surface portion 19c and the left surface portion 19d are flat surfaces perpendicular to the left-to-right direction. A rear surface portion extending slightly downward is connected to the rear end of the covering portion 19a. Both the front and rear surfaces of the rear surface portion are flat surfaces perpendicular to the front-to-rear direction. A portion of the right surface portion 19c, a portion of the left surface portion 19d, and a portion of the rear surface portion form engaging portions that engage with the case body 17.

[0043] The first fulcrum portion 12 includes a support member 20 fixed to the holder 16 and a sphere fixed to the support member 20. A portion of the sphere fixed to the support member 20 is disposed in a recess formed at the tip of the arm portion 4b. The sphere comes into contact with the bottom surface of the recess of the arm portion 4b from the outside in the first intersecting direction at a predetermined contact pressure due to the springiness of the arm portion 4b. The second fulcrum portion 13 includes a support member 21 fixed to the case body 17 and a sphere fixed to the support member 21. A portion of the sphere fixed to the support member 21 is disposed in a recess formed at the tip of the arm portion 4c. The sphere comes into contact with the bottom surface of the recess of the arm portion 4c from the outside in the second intersecting direction at a predetermined contact pressure due to the springiness of the arm portion 4c.

[0044] The magnetic drive mechanism 8 includes a first drive magnet 24 and a first drive coil 25 that are arranged opposite each other in the left-right direction. The magnetic drive mechanism 9 includes a second drive magnet 26 and a second drive coil 27 that are arranged opposite each other in the front-rear direction. The first drive magnet 24 and the second drive magnet 26 are formed in the shape of a rectangular plate. The first drive coil 25 and the second drive coil 27 are, for example, air-core coils formed by winding a conducting wire around an air core.

[0045] The first drive magnet 24 is disposed in a recess formed on the left side surface of the holder 16 and is fixed to the left side surface of the holder 16. The first drive coil 25 is disposed in a through-hole formed on the left side surface of the case body 17. The first drive coil 25 is also attached to the wiring board 11. The magnetic drive mechanism 8 rotates the movable body 3 relative to the fixed body 5 around an axis that is perpendicular to the optical axis L of the camera module 2 and parallel to the front-to-rear direction.

[0046] The second drive magnet 26 is disposed in a recess formed in the rear surface of the holder 16 and is fixed to the rear side of the holder 16. The second drive coil 27 is disposed in a through-hole formed in the rear portion of the case body 17. The second drive coil 27 is also attached to the wiring board 11. The magnetic drive mechanism 9 rotates the movable body 3 relative to the fixed body 5 around an axis that is perpendicular to the optical axis L of the camera module 2 and parallel to the left-right direction.

[0047] The wiring board 11 is a flexible printed circuit board. The wiring board 11 is routed along the rear, left side, and front sides of the case body 17. The wiring board 11 is also pulled out toward the front side from the left end of the front side of the cover member 18. The wiring board 11 is fixed to the outer peripheral surface of the case body 17.

[0048] In the optical unit 1, when a change in the tilt of the movable body 3 is detected by a predetermined detection mechanism for detecting a change in the tilt of the movable body 3, a current is supplied to at least one of the first drive coil 25 and the second drive coil 27 based on the detection result of this detection mechanism, thereby correcting the shake. The magnetic drive mechanism 8 and the magnetic drive mechanism 9 rotate the movable body 3 relative to the fixed body 5 around at least one of the first axis L1 and the second axis L2 as the rotation center.

[0049] (Wiring board configuration and routing) Fig. 4 is a perspective view showing the case body 17 and the wiring board 10 extracted from Fig. 3. Fig. 5 is a side view showing a part of the case body 17 and a part of the wiring board 10 extracted from Fig. 3.

[0050] The wiring board 10 is a rigid-flexible board that integrates a flexible printed board and a rigid board. The wiring board 10 is composed of a first board portion 10a that is attached to the subject-side end face of the camera module 2 (i.e., the lower end face of the camera module 2), a second board portion 10b having one end connected to the first board portion 10a, a third board portion 10c that is connected to the other end face of the second board portion 10b, a fourth board portion 10d having one end connected to the third board portion 10c, and a fifth board portion 10e that is connected to the other end face of the fourth board portion 10d.

[0051] The first substrate portion 10a, the second substrate portion 10b, the third substrate portion 10c, the fourth substrate portion 10d, and the fifth substrate portion 10e are integrally formed. The first substrate portion 10a, the third substrate portion 10c, and the fifth substrate portion 10e are composed of a flexible printed circuit board and a rigid substrate. The second substrate portion 10b and the fourth substrate portion 10d are composed of a flexible printed circuit board.

[0052] As described above, when viewed from the top-bottom direction, two of the four sides that make up the outer peripheral surface of case body 17 are parallel to the left-right direction, and the remaining two sides are parallel to the front-to-rear direction. In the following description, one of the two sides of case body 17 that are parallel to the left-to-right direction will be referred to as first side 17a, and one of the two sides of case body 17 that are parallel to the front-to-rear direction will be referred to as second side 17b. Specifically, the front side of case body 17 when viewed from the top-to-bottom direction will be referred to as first side 17a, and the right side of case body 17 when viewed from the top-to-bottom direction will be referred to as second side 17b.

[0053] As described above, the first substrate unit 10a is attached to the lower end surface of the camera module 2. The first substrate unit 10a is arranged so that the thickness direction of the first substrate unit 10a coincides with the up-down direction. An imaging element is mounted on the upper surface of the first substrate unit 10a. In this embodiment, the first substrate unit 10a is a module mounting portion. The second substrate unit 10b is drawn out from the first substrate unit 10a. The second substrate unit 10b is drawn out from the first substrate unit 10a to the right, then routed toward the front, and then routed toward the left. The second substrate unit 10b is not fixed to the case body 17.

[0054] The second substrate unit 10b is composed of a lead-out portion 10g, the left end of which is connected to the first substrate unit 10a, and a strip-shaped portion 10h, the rear end (one end) of which is connected to the right end of the lead-out portion 10g. As described above, the second substrate unit 10b is composed of a flexible printed circuit board, and therefore the lead-out portion 10g and the strip-shaped portion 10h are also composed of flexible printed circuit boards. The second substrate unit 10b consists of two two-layer flexible printed circuit boards, each with a wiring pattern formed on both sides, stacked with a gap between them.

[0055] The lead-out portion 10g is disposed so that the thickness direction of the lead-out portion 10g coincides with the up-down direction. The lead-out portion 10g is led out from the first substrate portion 10a to the outer periphery of the camera module 2. Specifically, the lead-out portion 10g is led out from the first substrate portion 10a at the second side 17b to the right side, which is one side in the left-right direction. At the boundary between the lead-out portion 10g and the strip portion 10h, the second substrate portion 10b is bent upward at an angle of 90°. In other words, the wiring board 10 is bent at an angle of 90° at the boundary between the lead-out portion 10g and the strip portion 10h.

[0056] The strip portion 10h is formed in a long, narrow strip shape. The strip portion 10h is arranged so that the width direction of the strip portion 10h coincides with the up-down direction. That is, when the optical axis L of the camera module 2 is in the reference position, the optical axis direction of the camera module 2 and the width direction of the strip portion 10h are parallel to each other. The strip portion 10h is routed on the outer periphery side of the case body 17 and on the inner periphery side of the tubular portion 18b of the cover member 18. The strip portion 10h is routed along the first side 17a and the second side 17b. That is, the strip portion 10h in an upright state is routed along the first side 17a and the second side 17b.

[0057] The portion of the strip portion 10h routed along the first side 17a is referred to as the first strip portion 10j, and the portion of the strip portion 10h routed along the second side 17b is referred to as the second strip portion 10k. The strip portion 10h is composed of the first strip portion 10j and the second strip portion 10k, and is bent 90° toward the left at the front end of the second side 17b. The second strip portion 10k is routed to the end of the second side 17b on the first side 17a side (i.e., the front end of the second side 17b). The first strip portion 10j is routed from the end of the first side 17a on the second side 17b side (i.e., the right end of the first side 17a) to the center of the first side 17a (the center in the left-right direction). The thickness direction of the first band-shaped portion 10j substantially coincides with the front-rear direction, and the thickness direction of the second band-shaped portion 10k substantially coincides with the front-rear direction.

[0058] A thin reinforcing plate 30 is fixed to the boundary between the first band portion 10j and the second band portion 10k to maintain the shape of the band portion 10h (see FIG. 2). The reinforcing plate 30 is formed in an L-shape. Similarly, a thin reinforcing plate (not shown) is fixed to the boundary between the lead-out portion 10g and the band portion 10h to maintain the shape of the second substrate portion 10b. Note that the reinforcing plate 30 is not shown in the drawings other than FIG. 2.

[0059] A recess 10n for bending the second substrate portion 10b at a 90° angle is formed in front of the boundary between the lead-out portion 10g and the strip portion 10h. Therefore, if the portion of the second strip portion 10k on the lead-out portion 10g side (i.e., the rear portion of the second strip portion 10k) is referred to as the base-side second strip portion 10p, and the portion of the second strip portion 10k on the first strip portion 10j side (the front portion of the second strip portion 10k) is referred to as the tip-side second strip portion 10r, the upper end surface (the end surface facing the subject) of the base-side second strip portion 10p is located higher (closer to the subject) than the upper end surface (the end surface facing the subject) of the tip-side second strip portion 10r. The recess 10n is recessed upward from the lower end surface of the base-side second strip portion 10p.

[0060] The third substrate portion 10c is disposed so that the thickness direction of the third substrate portion 10c coincides with the front-rear direction. The third substrate portion 10c is fixed to the outer peripheral surface of the case body 17. Specifically, the third substrate portion 10c is fixed to the outer peripheral surface of the case body 17 at the first side 17a. More specifically, the third substrate portion 10c is fixed to the outer peripheral surface of the case body 17 at the center (center in the left-right direction) of the first side 17a. The right end of the third substrate portion 10c is connected to the left end of the first band-shaped portion 10j. In this embodiment, the third substrate portion 10c is connected to the other end of the band-shaped portion 10h and is fixed to the outer peripheral surface of the case body 17.

[0061] The fourth substrate unit 10d is drawn out toward the front side from the third substrate unit 10c. The fourth substrate unit 10d is disposed so that the thickness direction of the fourth substrate unit 10d coincides with the up-down direction. The rear end of the fourth substrate unit 10d is connected to the lower end of the third substrate unit 10c. The fourth substrate unit 10d is drawn out toward the front side from the center of the first side 17a and toward the outer periphery of the fixed body 5. The fifth substrate unit 10e is disposed so that the thickness direction of the fifth substrate unit 10e coincides with the up-down direction. The fifth substrate unit 10e is connected to the front end of the fourth substrate unit 10d. The fifth substrate unit 10e is connected to a connector provided inside a mobile device such as a smartphone in which the optical unit 1 is mounted.

[0062] In this embodiment, lead-out portion 10g, to which one end of strip portion 10h is connected, is drawn out toward the right at second side 17b from first substrate portion 10a, which is attached to the bottom surface of camera module 2, and third substrate portion 10c, to which the other end of strip portion 10h is connected, is fixed at first side 17a to the outer peripheral surface of case body 17. Therefore, with the movement of camera module 2 when performing shake correction in the pitching and yawing directions, second strip portion 10k, which is disposed along second side 17b, moves relatively greatly, but first strip portion 10j, which is disposed along first side 17a, does not move as greatly as second strip portion 10k. Note that with the movement of camera module 2 when performing shake correction in the pitching and yawing directions, second strip portion 10k moves primarily in the up-down and left-right directions, and first strip portion 10j moves primarily in the up-down direction.

[0063] (Configuration of case body and cover member) Fig. 6 is a perspective view showing a part of the case body 17 shown in Fig. 3 from below. Fig. 7 is an enlarged view for explaining the configuration of part E in Fig. 3.

[0064] As described above, the case body 17 is formed in the shape of a flattened rectangular tube with both ends open in the vertical direction. The first band-shaped portion 10j is routed along the first side 17a of the case body 17, and the second band-shaped portion 10k is routed along the second side 17b of the case body 17. The case body 17 is formed with a first inner wall surface 17c disposed inside the first band-shaped portion 10j in the front-rear direction and a second inner wall surface 17d disposed inside the second band-shaped portion 10k in the left-right direction. That is, the case body 17 is formed with the first inner wall surface 17c disposed behind the first band-shaped portion 10j and the second inner wall surface 17d disposed on the left side of the second band-shaped portion 10k.

[0065] The first inner wall surface 17c is formed in a flat plane perpendicular to the front-rear direction. The second inner wall surface 17d is formed in a flat plane perpendicular to the left-right direction. That is, the first inner wall surface 17c is a flat plane perpendicular to the front-rear direction, and the second inner wall surface 17d is a flat plane perpendicular to the left-right direction. The right end of the first inner wall surface 17c and the front end of the second inner wall surface 17d are connected via a convex curved surface. A gap is formed between the first band-shaped portion 10j and the first inner wall surface 17c, and a gap is formed between the second band-shaped portion 10k and the second inner wall surface 17d.

[0066] The first inner wall surface 17c is formed on the front portion of the case body 17, and the second inner wall surface 17d is formed on the right portion of the case body 17. A notch 17e is formed on the right portion of the case body 17 for pulling out the drawer portion 10g. A fixing surface 17f to which the third board portion 10c is fixed is formed on the left side of the first inner wall surface 17c. The fixing surface 17f is a flat surface that is perpendicular to the front-to-rear direction.

[0067] The case body 17 includes a first upper wall portion 17g disposed above the first band-shaped portion 10j and a second upper wall portion 17h disposed above the second band-shaped portion 10k. That is, the case body 17 includes the first upper wall portion 17g disposed on the subject side of the first band-shaped portion 10j and the second upper wall portion 17h disposed on the subject side of the second band-shaped portion 10k. The upper surface of the first upper wall portion 17g forms part of the upper surface of the case body 17. The upper surface of the second upper wall portion 17h forms part of the upper surface of the case body 17.

[0068] The lower surface (surface opposite to the subject) of the first upper wall portion 17g is connected to the upper end portion (end portion opposite to the subject) of the first inner wall surface 17c and extends outward in the front-to-rear direction to form a first upper wall surface 17j that covers the first band-shaped portion 10j from above. The lower surface (surface opposite to the subject) of the second upper wall portion 17h is connected to the upper end portion of the second inner wall surface 17d and extends outward in the left-to-right direction to form a second upper wall surface 17k that covers the second band-shaped portion 10k from above. That is, the case body 17 includes the first upper wall portion 17g, which is formed with the first upper wall surface 17j that extends forward from the upper end portion of the first inner wall surface 17c, and the second upper wall portion 17h, which is formed with the second upper wall surface 17k that extends rightward from the upper end portion of the second inner wall surface 17d.

[0069] The first upper wall surface 17j and the second upper wall surface 17k are formed in a plane perpendicular to the up-down direction. That is, the first upper wall surface 17j and the second inner wall surface 17d are planes perpendicular to the up-down direction. The front end surface 17p of the first upper wall portion 17g (i.e., the outer end surface of the first upper wall portion 17g in the front-to-rear direction) is a plane perpendicular to the front-to-rear direction. The right end surface 17r of the second upper wall portion 17h (i.e., the outer end surface of the second upper wall portion 17h in the left-to-right direction) is a plane perpendicular to the left-to-right direction.

[0070] The second upper wall portion 17h has a notch 17s formed therein to prevent interference between the base-end second band portion 10p and the second upper wall portion 17h. The notch 17s penetrates the second upper wall portion 17h in the vertical direction. The notch 17s is formed from the right end surface 17r of the second upper wall portion 17h toward the left side. The notch 17s is covered from above by the covering portion 19a of the cover member 19. The upper end of the base-end second band portion 10p is located within the notch 17s. The upper end of the base-end second band portion 10p is located below the upper surface of the second upper wall portion 17h (i.e., the upper surface of the case body 17). A gap is formed between the upper end of the tip-end second band portion 10r and the second upper wall surface 17k. A gap is formed between the upper end of the first band-shaped portion 10j and the first upper wall surface 17j.

[0071] As described above, the cover member 18 has a rectangular cylindrical portion 18b, which covers the outer periphery of the case body 17. As shown in Fig. 7, the cover member 18 is formed with a first outer wall surface 18c that is disposed on the outer side of the first band-shaped portion 10j in the front-rear direction, and a second outer wall surface 18d that is disposed on the outer side of the second band-shaped portion 10k in the left-right direction. That is, the cover member 18 is formed with the first outer wall surface 18c that is disposed on the front side of the first band-shaped portion 10j, and the second outer wall surface 18d that is disposed on the right side of the second band-shaped portion 10k.

[0072] The first outer wall surface 18c is formed in a flat plane perpendicular to the front-rear direction. The second outer wall surface 18d is formed in a flat plane perpendicular to the left-right direction. That is, the first outer wall surface 18c is a flat plane perpendicular to the front-rear direction, and the second outer wall surface 18d is a flat plane perpendicular to the left-right direction. The first outer wall surface 18c is parallel to the first inner wall surface 17c, and the second outer wall surface 18d is parallel to the second inner wall surface 17d. The right end of the first outer wall surface 18c and the front end of the second outer wall surface 18d are connected via a concave curved surface. A gap is formed between the first band-shaped portion 10j and the first outer wall surface 18c, and a gap is formed between the second band-shaped portion 10k and the second outer wall surface 18d.

[0073] A bottom portion 18a of the cover member 18 is disposed below the first strip-shaped portion 10j and the second strip-shaped portion 10k. A gap is formed between the lower end of the first strip-shaped portion 10j and the upper surface of the bottom portion 18a. A gap is also formed between the lower end of the second strip-shaped portion 10k and the upper surface of the bottom portion 18a. Cutout portions 18e and 18f are formed in the front portion of the cover member 18 to allow the wiring boards 10 and 11 to be drawn out to the outer periphery of the optical unit 1. The wiring board 10 is drawn out so as to pass through the cutout portion 18e. The wiring board 11 is drawn out so as to pass through the cutout portion 18f.

[0074] As described above, the front end surface 17p of the first upper wall portion 17g is a plane perpendicular to the front-rear direction and parallel to the first outer wall surface 18c. The right end surface 17r of the second upper wall portion 17h is a plane perpendicular to the left-right direction and parallel to the second outer wall surface 18d. The front end surface 17p contacts the rear surface of the front surface 19b of the cover member 19, and the first outer wall surface 18c contacts the front surface of the front surface 19b. The right end surface 17r contacts the left surface of the right surface 19c of the cover member 19, and the second outer wall surface 18d contacts the right surface of the right surface 19c.

[0075] The case body 17 and the cover members 18, 19 function to protect the band-shaped portion 10h in the front-rear, left-right, and up-down directions. As shown in Fig. 7, the distance D1 between the first inner wall surface 17c and the first outer wall surface 18c in the front-rear direction is narrower than the distance D2 between the second inner wall surface 17d and the second outer wall surface 18d in the left-right direction. Furthermore, the width W1 of the first upper wall surface 17j in the front-rear direction is narrower than the width W2 of the second upper wall surface 17k in the left-right direction.

[0076] When shake correction in the pitching or yawing direction is performed, the band-shaped portion 10h moves in accordance with the operation of the camera module 2. In this embodiment, the gaps between the first band-shaped portion 10j and the first inner wall surface 17c and the gaps between the first band-shaped portion 10j and the first outer wall surface 18c are set so that the first band-shaped portion 10j does not come into contact with the first inner wall surface 17c and the first outer wall surface 18c even when the band-shaped portion 10h moves during shake correction. Furthermore, the gaps between the second band-shaped portion 10k and the second inner wall surface 17d and the gaps between the second band-shaped portion 10k and the second outer wall surface 18d are set so that the second band-shaped portion 10k does not come into contact with the second inner wall surface 17d and the second outer wall surface 18d even when the band-shaped portion 10h moves during shake correction.

[0077] Furthermore, a gap is set between the upper end of first band-shaped portion 10j and first upper wall surface 17j, and a gap is set between the lower end of first band-shaped portion 10j and the upper surface of bottom portion 18a, so that first band-shaped portion 10j will not come into contact with first upper wall surface 17j and bottom portion 18a even if band-shaped portion 10h moves during shake correction. Furthermore, a gap is set between the lower end of second band-shaped portion 10k and the upper surface of bottom portion 18a, so that second band-shaped portion 10k will not come into contact with bottom portion 18a even if band-shaped portion 10h moves during shake correction.

[0078] Furthermore, a gap is set between the upper end of the distal second band portion 10r and the second upper wall surface 17k so that the distal second band portion 10r does not come into contact with the second upper wall surface 17k even if the band portion 10h moves during shake correction. Furthermore, in this embodiment, the band portion 10h and the second upper wall portion 17h are arranged so that the upper end of the proximal second band portion 10p does not reach the upper surface of the second upper wall portion 17h even if the band portion 10h moves during shake correction. In other words, the band portion 10h and the second upper wall portion 17h are arranged so that the upper end of the proximal second band portion 10p does not come into contact with the lower surface of the covering portion 19a of the cover member 19 even if the band portion 10h moves during shake correction.

[0079] (Main effect of this form) As described above, in this embodiment, the distance D1 between the first inner wall surface 17c and the first outer wall surface 18c in the front-rear direction is narrower than the distance D2 between the second inner wall surface 17d and the second outer wall surface 18d in the left-right direction. Therefore, in this embodiment, it is possible to make the optical unit 1 smaller in size in the front-rear direction compared to when the distance D1 is the same as the distance D2.

[0080] In this embodiment, the distance D2 is greater than the distance D1. Therefore, the distance D2 between the second inner wall surface 17d and the second outer wall surface 18d in the left-right direction is relatively large. Therefore, even if the second band portion 10k moves significantly in conjunction with the operation of the camera module 2 when correcting shake in the pitching or yawing direction, the gap between the second band portion 10k and the second inner wall surface 17d and the gap between the second band portion 10k and the second outer wall surface 18d can be set to prevent the second band portion 10k from contacting the second inner wall surface 17d and the second outer wall surface 18d. Therefore, in this embodiment, damage to the second band portion 10k can be prevented. Specifically, damage to the second band portion 10k caused by repeated contact of the second band portion 10k with the second inner wall surface 17d and the second outer wall surface 18d can be prevented.

[0081] Furthermore, in this embodiment, the first band portion 10j does not move as much as the second band portion 10k does in response to the movement of the camera module 2 when performing shake correction in the pitching and yawing directions. Therefore, even if the distance D1 is narrower than the distance D2, as described above, it is possible to set the gap between the first band portion 10j and the first inner wall surface 17c and the gap between the first band portion 10j and the first outer wall surface 18c so that the first band portion 10j does not come into contact with the first inner wall surface 17c and the first outer wall surface 18c when the first band portion 10j moves in response to the movement of the camera module 2 when performing shake correction. Therefore, in this embodiment, it is possible to prevent damage to the first band portion 10j. Specifically, it is possible to prevent damage to the first band portion 10j caused by repeated contact of the first band portion 10j with the first inner wall surface 17c and the first outer wall surface 18c.

[0082] As described above, in this embodiment, it is possible to prevent damage to the first band portion 10j and the second band portion 10k while miniaturizing the optical unit 1 in the front-to-rear direction. Therefore, in this embodiment, it is possible to prevent damage to the wiring board 10 drawn out from the camera module 2 while miniaturizing the optical unit 1.

[0083] In this embodiment, second upper wall portion 17h is formed with notch portion 17s to prevent interference between proximal second band portion 10p and second upper wall portion 17h. Therefore, in this embodiment, even if the upper end surface of proximal second band portion 10p is positioned higher than the upper end surface of distal second band portion 10r, it is possible to prevent interference between proximal second band portion 10p and second upper wall portion 17h while reducing the size of the portion of optical unit 1 where second upper wall portion 17h is formed in the vertical direction.

[0084] (Other embodiments) The above-described embodiment is one example of a preferred embodiment of the present invention, but the present invention is not limited to this embodiment and various modifications can be made within the scope of the present invention.

[0085] In the above-described embodiment, at least one of first substrate portion 10a, third substrate portion 10c, and fifth substrate portion 10e may be configured from a flexible printed circuit board. That is, the entire wiring board 10 may be configured from a flexible printed circuit board. Also, in the above-described embodiment, at least one of second substrate portion 10b and fourth substrate portion 10d may be configured from a flexible printed circuit board and a rigid substrate.

[0086] In the embodiment described above, the first substrate portion 10a, the second substrate portion 10b, the third substrate portion 10c, the fourth substrate portion 10d, and the fifth substrate portion 10e are integrally formed, but for example, the first substrate portion 10a may be formed separately, and the first substrate portion 10a and the second substrate portion 10b may be connected by soldering. Also, for example, the second substrate portion 10b, the third substrate portion 10c, and the fourth substrate portion 10d may be formed separately, and the second substrate portion 10b and the fourth substrate portion 10d may be connected by soldering to the third substrate portion 10c.

[0087] In the above-described embodiment, first strip portion 10j may be routed from the right end of first side 17a to the left end of first side 17a. In this case, third substrate portion 10c is fixed to the outer peripheral surface of case body 17 at the left end of first side 17a, and wiring board 11 is pulled out toward the left from the front end of the left surface of cover member 18. Also, in the above-described embodiment, the outer shape of case body 17 when viewed from the top and bottom may be rectangular. In this case, the outer shape of cover member 18 when viewed from the top and bottom may also be rectangular.

[0088] In the above-described embodiment, the optical unit 1 may include a rotation mechanism that rotates the camera module 2 relative to the intermediate member 4 around the optical axis L of the camera module 2. In this case, the rotation mechanism includes a drive coil mounted on the wiring board 11 and a drive magnet arranged opposite the drive coil. In this case, the intermediate member 4 includes a first intermediate member and a second intermediate member. The movable body 3 is rotatable relative to the first intermediate member around the optical axis L of the camera module 2, and the first intermediate member is rotatable relative to the second intermediate member around the first axis L1. In the above-described embodiment, the optical unit 1 may be mounted in various devices other than portable devices. [Explanation of symbols]

[0089] 1 Optical unit (optical unit with image stabilization function) 2 Camera Module 3 Movable body 4 Intermediate parts 5 Fixed body 8, 9 Magnetic drive mechanism 10. Wiring board 10a First board section (module mounting section) 10c 3rd board part (fixed part) 10g drawer 10h Belt 10j First belt 10k Second Band 10p Second band on the base end 10r Second band on tip side 17 Case body (intermediate member holding portion) 17a Side 1 17b Side 2 17c 1st inner wall 17d 2nd inner wall surface 17g 1st upper wall section 17h 2nd upper wall section 17j First upper wall 17k Second upper wall 17p Front end surface (outer end surface of the first upper wall portion in the second direction) 17r Right end face (outer end face of the second upper wall portion in the first direction) 17s Notch 18b Cylindrical part (outer circumference side covering part) 18c 1st outer wall 18d 2nd outer wall D1: Distance between the first inner wall surface and the first outer wall surface in the second direction D2: Distance between the second inner wall surface and the second outer wall surface in the first direction L optical axis W1 Width of the first upper wall surface in the second direction W2 Width of the second upper wall surface in the first direction X 1st direction Y Second direction

Claims

1. a movable body having a camera module, an intermediate member that rotatably holds the movable body, a fixed body that rotatably holds the intermediate member, a magnetic drive mechanism that rotates the movable body relative to the fixed body so that the optical axis of the camera module is tilted in a desired direction, and a wiring board that is drawn out from the camera module; A direction perpendicular to the optical axis of the camera module placed at a predetermined reference position is defined as a first direction, a direction perpendicular to the optical axis of the camera module placed at the reference position and the first direction is defined as a second direction, one side of the optical axis direction, which is the direction of the optical axis of the camera module, is defined as a subject side, and the side opposite to the subject side is defined as an anti-subject side, the fixed body includes an intermediate member holding portion that rotatably holds the intermediate member, and an outer circumferential cover portion that covers an outer circumferential side of the intermediate member holding portion, the wiring board includes: a module mounting portion attached to an end face of the camera module on the side opposite to the subject; a pull-out portion pulled out from the module mounting portion to the outer periphery of the camera module; a long, thin, strip-shaped portion having one end connected to the pull-out portion and routed around the outer periphery of the intermediate member holding portion and the inner periphery of the outer periphery cover portion; and a fixed portion connected to the other end of the strip-shaped portion and fixed to the outer periphery of the intermediate member holding portion, when viewed from the optical axis direction when the optical axis of the camera module is at the reference position, the outer shape of the intermediate member holding portion is square or rectangular, and four sides constituting an outer circumferential surface of the intermediate member holding portion are parallel to the first direction or the second direction, When one of the two sides of the intermediate member holding portion parallel to the first direction is defined as a first side, and one of the two sides of the intermediate member holding portion parallel to the second direction is defined as a second side, a width direction of the strip-shaped portion is parallel to the optical axis direction when the optical axis of the camera module is at the reference position; the pull-out portion is pulled out from the module mounting portion at the second side toward one side in the first direction, the strip portion is routed along the first side and the second side, the fixed portion is fixed to the outer peripheral surface of the intermediate member holding portion at the first side, When a portion of the strip-shaped portion that is arranged along the first side is referred to as a first strip-shaped portion, and a portion of the strip-shaped portion that is arranged along the second side is referred to as a second strip-shaped portion, the intermediate member holding portion is formed with a first inner wall surface that is planar and is disposed inside the first band-shaped portion in the second direction and is perpendicular to the second direction, and a second inner wall surface that is planar and is disposed inside the second band-shaped portion in the first direction and is perpendicular to the first direction, the outer circumferential cover portion is formed with a first outer wall surface that is planar and disposed outward of the first band-shaped portion in the second direction and parallel to the first inner wall surface, and a second outer wall surface that is planar and disposed outward of the second band-shaped portion in the first direction and parallel to the second inner wall surface, An optical unit with a shake correction function, characterized in that the distance between the first inner wall surface and the first outer wall surface in the second direction is narrower than the distance between the second inner wall surface and the second outer wall surface in the first direction.

2. 2. The optical unit with shake correction function according to claim 1, wherein the strip portion is made of a flexible printed circuit board.

3. the intermediate member holding portion includes a first upper wall portion disposed on the subject side of the first belt-shaped portion and a second upper wall portion disposed on the subject side of the second belt-shaped portion, a surface of the first upper wall portion on the opposite side to the subject, which is connected to an end of the first inner wall surface on the subject side and extends outward in the second direction to form a first upper wall surface that covers the first band-shaped portion from the subject side; a surface of the second upper wall portion on the opposite side to the subject, which is connected to an end of the second inner wall surface on the subject side and extends outward in the first direction to form a second upper wall surface that covers the second band-shaped portion from the subject side; an outer end surface of the first upper wall portion in the second direction is parallel to the first outer wall surface, an outer end surface of the second upper wall portion in the first direction is parallel to the second outer wall surface, 3. The optical unit with shake correction function according to claim 1, wherein the width of the first upper wall surface in the second direction is narrower than the width of the second upper wall surface in the first direction.

4. the wiring board is bent at 90° at the boundary between the lead-out portion and the strip-shaped portion, When a portion of the second band-shaped portion on the pull-out portion side is referred to as a base-end-side second band-shaped portion, and a portion of the second band-shaped portion on the first band-shaped portion side is referred to as a tip-end-side second band-shaped portion, an end surface of the base-side second band-shaped portion facing the subject is disposed closer to the subject than an end surface of the tip-side second band-shaped portion facing the subject; 4. The optical unit with shake correction function according to claim 3, wherein the second upper wall portion has a notch formed therein to prevent interference between the base end side second strip portion and the second upper wall portion.

5. the second band-shaped portion is routed to an end of the second side on the first side side, the first band-shaped portion is routed from an end of the first side on the second side to a center of the first side, 5. The optical unit with shake correction function according to claim 1, wherein the fixed portion is fixed to the outer circumferential surface of the intermediate member holding portion at the center of the first side.

Images