Optical Unit with Jitter Correction Function and Method for Manufacturing the Same

By designing the position adjustment of the fulcrum components in the optical unit, the problem of large-scale optical units caused by insufficient movement of the movable body is solved, and miniaturization and functional stability are achieved.

CN116360182BActive Publication Date: 2025-08-05SANKYO SEIKI MFG CO LTD
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Patent Information

Application Number
CN202211672621.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-12-28
Filing Date
2022-12-26
Publication Date
2025-08-05
Estimated Expiration
2042-12-26

AI Technical Summary

Technical Problem

In the prior art, the optical unit with a jitter correction function may easily increase the optical unit in the optical axis direction while ensuring that the movable amount of the movable body from the reference position to the subject side and the opposite side of the subject from the reference position is more than a predetermined amount.

Method used

By adopting a movable body with a camera module, the fulcrum component design between the intermediate member and the fixed body, the position adjustment of the first and second fulcrum parts is ensured to ensure the amount of movement of the movable body in the optical axis direction, including the gap between the movable body and the component that restricts its movement is more than a predetermined amount, and the jitter correction is achieved through the magnetic driving mechanism.

Benefits of technology

While maintaining the jitter correction function, the optical unit is miniaturized in the optical axis direction and preventing the occurrence of unqualified products.

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Abstract

An optical unit with a shake correction function and a manufacturing method thereof are provided. While ensuring that the movable amount of a movable body of a camera module from a predetermined reference position toward the subject side and the movable amount of the movable body from the reference position toward the side opposite the subject are both greater than predetermined amounts, the unit can also be miniaturized along the optical axis of the camera module. In this optical unit with a shake correction function, a second fulcrum portion, serving as a fulcrum for the rotation of an intermediate member relative to a fixed member, includes a second support member fixed to a second arrangement hole forming member of the fixed member. The second arrangement hole in the second arrangement hole forming member, in which the second support member is arranged and fixed, is a through-hole extending through the second arrangement hole forming member from the subject side to the side opposite the subject. The second arrangement hole is formed in a shape that allows the position of the second support member within the second arrangement hole, before being fixed to the second arrangement hole, to be adjusted in the Z direction, which is the through-direction of the second arrangement hole.
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Description

Technical Field

[0001] The present invention relates to an optical unit with a shake correction function installed in a portable device, etc. The present invention also relates to a method for manufacturing an optical unit with a shake correction function installed in a portable device, etc. Background Art

[0002] Conventionally, an optical unit with a shake correction function installed in a portable device or the like is known (for example, see Patent Document 1). The optical unit described in Patent Document 1 includes: a movable body having an optical module; a gimbal frame portion that rotatably holds the movable body; a fixed body that rotatably holds the gimbal frame portion; and a rotational drive mechanism that drives the movable body in the pitch and yaw directions relative to the fixed body. The movable body includes a holder frame that holds the optical module. The fixed body includes a fixed frame having a first front cover portion that surrounds the movable body on the subject side, side cover portions that surround the holder frame on four sides, and a rear cover portion that covers the opposite side of the movable body to the subject (the side opposite to the subject side).

[0003] The optical unit described in Patent Document 1 includes a first thrust receiving member disposed between a first support extension of the gimbal frame and a side cover of the fixed body; and a second thrust receiving member disposed between a holder frame of the movable body and the second support extension of the gimbal frame. A spherical body fixed to the first thrust receiving member is disposed between the first support extension and the first thrust receiving member, and a spherical body fixed to the second thrust receiving member is disposed between the second support extension and the second thrust receiving member.

[0004] In the optical unit described in Patent Document 1, a recess is formed in the extension portion of the first support portion, and a portion of a sphere fixed to the first thrust-bearing component is arranged in the recess. A recess is formed in the extension portion of the second support portion, and a portion of a sphere fixed to the second thrust-bearing component is arranged in the recess. The gimbal frame portion is a leaf spring formed by bending an elastic metal material into a predetermined shape. Therefore, the sphere fixed to the first thrust-bearing component contacts the bottom surface of the recess formed in the extension portion of the first support portion with a predetermined contact pressure, and the sphere fixed to the second thrust-bearing component contacts the bottom surface of the recess formed in the extension portion of the second support portion with a predetermined contact pressure.

[0005] In the optical unit described in Patent Document 1, a first pressing path is formed in the side cover portion, into which a first thrust-bearing member is pressed and fixed. The first thrust-bearing member is pressed into the first pressing path from the subject side. The first thrust-bearing member contacts the bottom surface of the first pressing path and, through contact with the bottom surface of the first pressing path, is positioned relative to the fixed body in the direction of the optical axis of the optical module. The first thrust-bearing member is adhesively fixed to the side cover portion.

[0006] Furthermore, in the optical unit described in Patent Document 1, a second pressure-receiving path is formed in the holder frame, into which a second thrust-receiving member is pressed and secured. The second thrust-receiving member is pressed into the second pressure-receiving path from the subject side. The second thrust-receiving member contacts the bottom surface of the second pressure-receiving path and, through this contact, is positioned relative to the movable body in the optical axis direction of the optical module. The second thrust-receiving member is adhesively secured to the holder frame.

[0007] In the optical unit described in Patent Document 1, when the movable body is positioned at a predetermined reference position without performing shake correction on the optical module, a gap is formed between the end surface of the holder frame on the subject side and the first front cover portion, and a gap is formed between the end surface of the holder frame on the opposite side of the subject and the rear cover portion, along the optical axis of the optical module. The movable body positioned at the reference position can move toward the subject until the holder frame contacts the first front cover portion, and can also move toward the subject until the holder frame contacts the rear cover portion. To properly perform shake correction in this optical unit, it is necessary to ensure that the movable body positioned at the reference position can move from the reference position toward the subject side and from the reference position toward the opposite side of the subject, both of which are greater than a predetermined amount.

[0008] Prior art literature

[0009] Patent Literature

[0010] Patent Document 1: Japanese Patent Application Laid-Open No. 2020-166011 Summary of the Invention

[0011] In the optical unit described in Patent Document 1, the first thrust receiving member is positioned relative to the fixed body in the optical axis direction by contacting the bottom surface of the first press-fitting path, and the second thrust receiving member is positioned relative to the movable body in the optical axis direction by contacting the bottom surface of the second press-fitting path. Therefore, the position of the movable body in the optical axis direction relative to the fixed body is subject to maximum variation corresponding to the cumulative dimensional tolerances of various components, such as the first thrust receiving member, the gimbal frame, the second thrust receiving member, and the holder frame. Consequently, in this optical unit, when the movable body is positioned in the reference position, the optical axis gap between the end surface of the holder frame on the subject side and the first front cover portion, as well as the optical axis gap between the end surface of the holder frame on the opposite side of the subject side and the rear cover portion, are subject to maximum variation corresponding to the cumulative dimensional tolerances of various components.

[0012] In the optical unit described in Patent Document 1, by increasing the design clearance in the optical axis direction between the end surface of the holder frame on the subject side and the first front cover portion, and the design clearance in the optical axis direction between the end surface of the holder frame on the opposite side of the subject and the rear cover portion, even if these clearances vary, the movable amount of the movable body from the reference position toward the subject side and the movable amount of the movable body from the reference position toward the opposite side of the subject can be ensured to be greater than a predetermined amount. However, in this case, the optical unit may become larger in the optical axis direction of the optical module.

[0013] Therefore, the subject of the present invention is to provide an optical unit with a shake correction function, which can be miniaturized in the optical axis direction of the camera module even if it is ensured that the movable amount of the movable body of the camera module from a specified reference position to the subject side and the movable amount of the movable body from the reference position to the opposite side of the subject are greater than the specified amount.

[0014] In addition, the subject of the present invention is to provide a method for manufacturing an optical unit with a shake correction function. In the optical unit with a shake correction function, even if the movable amount of the movable body having the camera module from a prescribed reference position to the subject side and the movable amount of the movable body from the reference position to the opposite side of the subject can be ensured to be greater than the prescribed amount, the camera module can be miniaturized in the optical axis direction.

[0015] To solve the above-mentioned problems, the optical unit with a shake correction function of the present invention is characterized by comprising: 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 as to tilt the optical axis of the camera module in an arbitrary direction; and a first fulcrum portion that serves as a fulcrum for the rotation of the movable body relative to the intermediate member.and a second fulcrum portion, which serves as a fulcrum for the rotation of the intermediate component relative to the fixed body, the movable body can rotate relative to the intermediate component with a first intersecting direction intersecting the optical axis of the camera module as the axial direction of rotation, and the intermediate component can rotate relative to the fixed body with a second intersecting direction intersecting the first intersecting direction and the optical axis of the camera module as the axial direction of rotation, the first fulcrum portion is arranged on both end sides of the intermediate component in the first intersecting direction, the second fulcrum portion is arranged on both end sides of the intermediate component in the second intersecting direction, the intermediate component includes two first arm portions constituting the end portions of the intermediate component in the first intersecting direction and two second arm portions constituting the end portions of the intermediate component in the second intersecting direction, and the first fulcrum portion includes a first supporting component fixed to the movable body. and a first sphere arranged between the first arm portion and the first supporting member, the second fulcrum portion includes a second supporting member fixed to the fixed body and a second sphere arranged between the second arm and the second supporting member, the movable body includes a first arrangement hole forming member, which forms a first arrangement hole for arranging and fixing the first supporting member, and the fixed body includes a second arrangement hole forming member, which forms a second arrangement hole for arranging and fixing the second supporting member, and when the direction of the optical axis of the camera module, that is, one side of the optical axis direction is set as the subject side and the side opposite to the subject side is set as the subject opposite side, the first arrangement hole becomes a first through hole that penetrates the first arrangement hole forming member from the subject side to the subject opposite side, or the second arrangement hole becomes a first through hole that penetrates the first arrangement hole forming member from the subject side to the subject opposite side. The second through hole of the second configuration hole forming component, when the first configuration hole becomes the first through hole, the first through hole is formed as follows: in the first through direction as the through direction of the first through hole, the position of the first supporting component before being fixed to the first through hole can be adjusted in the first through hole, when viewed from the first through direction side as one side of the first through direction, the entire end of the first supporting component on the first through direction side is configured at a position closer to the inside of the first through hole than the edge of the first through hole, and when viewed from the other side of the first through direction as the other side of the first through direction, the entire end of the first supporting component on the other side of the first through direction is configured closer to the first through direction than the edge of the first through hole. The position of the inner side of the through-hole, when the second arrangement hole is formed as the second through-hole, is formed into a shape such that the position of the second support member in the second through-hole before being fixed to the second through-hole can be adjusted in the second through-hole in the second through-direction, which is the through-direction of the second through-hole; when viewed from the second through-direction side, which is one side of the second through-direction, the entire end of the second support member on the first side of the second through-direction is positioned further inward of the second through-hole than the edge of the second through-hole; and when viewed from the other side of the second through-direction, which is the other side of the second through-direction, the entire end of the second support member on the other side of the second through-direction is positioned further inward of the second through-hole than the edge of the second through-hole.

[0016] In the optical unit with a shake correction function of the present invention, a first fulcrum portion serving as a fulcrum for the rotation of the movable body relative to the intermediate member includes a first support member fixed to a first arrangement hole forming member of the movable body, and a second fulcrum portion serving as a fulcrum for the rotation of the intermediate member relative to the fixed body includes a second support member fixed to a second arrangement hole forming member of the fixed body. Furthermore, in the present invention, the first arrangement hole in the first arrangement hole forming member, in which the first support member is arranged and fixed, is a first through-hole extending through the first arrangement hole forming member from the subject side to the side opposite to the subject, or the second arrangement hole in the second arrangement hole forming member, in which the second support member is arranged and fixed, is a second through-hole extending through the second arrangement hole forming member from the subject side to the side opposite to the subject.

[0017] Furthermore, in the present invention, when the first arrangement hole is a first through-hole, the first through-hole is formed into a shape such that the position of the first support member before being fixed to the first through-hole can be adjusted in the first through-hole in a first through-direction, which is the through-direction of the first through-hole. When the second arrangement hole is a second through-hole, the second through-hole is formed into a shape such that the position of the second support member before being fixed to the second through-hole can be adjusted in the second through-hole in a second through-direction, which is the through-direction of the second through-hole. Therefore, in the present invention, the position of the first support member before being fixed to the first arrangement hole can be adjusted in the first through-hole in the first through-direction, or the position of the second support member before being fixed to the second arrangement hole can be adjusted in the second through-hole in the second through-direction.

[0018] Therefore, in the present invention, even if the gap in the optical axis direction between the movable body arranged at the reference position and the component that restricts the movement of the movable body toward the subject side, and the gap in the optical axis direction between the movable body arranged at the reference position and the component that restricts the movement of the movable body toward the opposite side of the subject are deviated due to deviations of various components such as the first supporting component, the intermediate component and the second supporting component, the gap in the optical axis direction between the component that restricts the movement of the movable body toward the subject side and the movable body, and the gap in the optical axis direction between the component that restricts the movement of the movable body toward the opposite side of the subject and the movable body can be ensured to be greater than a specified amount by adjusting the position of the first supporting component or the position of the second supporting component, thereby ensuring that the movable amount of the movable body from the reference position toward the subject side and the movable amount of the movable body from the reference position toward the opposite side of the subject are greater than a specified amount.

[0019] Therefore, in the present invention, even if the movable amount of the movable body from the reference position to the subject side and the movable amount of the movable body from the reference position to the opposite side of the subject can be ensured to be greater than the specified amount, the design gap in the optical axis direction between the movable body arranged at the reference position and the component that limits the movement of the movable body to the subject side, and the design gap in the optical axis direction between the movable body arranged at the reference position and the component that limits the movement of the movable body to the opposite side of the subject can be narrowed. As a result, the optical unit with the shake correction function can be miniaturized in the optical axis direction of the camera module.

[0020] In addition, in the present invention, by performing position adjustment of the first supporting member or the second supporting member, the movable amount of the movable body from the reference position to the subject side and the movable amount of the movable body from the reference position to the opposite side of the subject can be ensured to be greater than the specified amount. Therefore, the production of defective products in which the movable amount of the movable body from the reference position to the subject side or the movable amount of the movable body from the reference position to the opposite side of the subject is a value outside the specification can be prevented.

[0021] Furthermore, in the present invention, when the first arrangement hole is formed as the first through-hole, the entire end portion of the first support member on the first through-direction side is positioned further inward of the first through-hole than the edge of the first through-hole when viewed from the first through-direction side, which is one side of the first through-direction. Furthermore, when viewed from the other side of the first through-direction side, which is the other side of the first through-direction, the entire end portion of the first support member on the other side of the first through-direction is positioned further inward of the first through-hole than the edge of the first through-hole. Therefore, in the present invention, when adjusting the position of the first support member, for example, a predetermined jig can be easily brought into contact with the first through-direction end portion of the first support member from the first through-direction side, and a predetermined jig can be easily brought into contact with the other side of the first through-direction end portion of the first support member from the other side of the first through-direction. Therefore, in the present invention, when the first arrangement hole is formed as the first through-hole, the position of the first support member can be easily adjusted.

[0022] Similarly, in the present invention, when the second arrangement hole is formed as the second through-hole, the entire end portion of the second support member on the first side in the second through-hole is positioned further inward of the second through-hole than the edge of the second through-hole when viewed from the second through-direction side, which is one side of the second through-direction, and the entire end portion of the second support member on the second side in the second through-direction is positioned further inward of the second through-hole than the edge of the second through-hole when viewed from the second side in the second through-direction side, which is the other side of the second through-direction. Therefore, when adjusting the position of the second support member, for example, a predetermined jig can be easily brought into contact with the end portion of the second support member on the first side in the second through-direction, and a predetermined jig can be easily brought into contact with the end portion of the second support member on the second side in the second through-direction from the second side in the second through-direction. Therefore, in the present invention, when the second arrangement hole is formed as the second through-hole, the position of the second support member can be easily adjusted.

[0023] In the present invention, the second arrangement hole is preferably a second through-hole. Specifically, in the present invention, it is preferable to be able to adjust the position of the second support member relative to the second arrangement hole-forming member of the fixed body. With this configuration, the position of the second support member relative to the second arrangement hole-forming member can be adjusted more easily than when the position of the first support member is adjusted relative to the first arrangement hole-forming member of a movable body that is rotatable relative to the fixed body.

[0024] In the present invention, it is preferred that the end portion of the second support member on one side in the second through-direction be a first flat plate portion formed in a flat plate shape, and the end portion of the second support member on the other side in the second through-direction be a second flat plate portion formed in a flat plate shape. With this configuration, when the position of the second support member is adjusted by, for example, bringing a predetermined jig into contact with the end portion of the second support member on one side in the second through-direction and bringing a predetermined jig into contact with the end portion of the second support member on the other side in the second through-direction, the state of the jig abutting the end portion of the second support member on one side in the second through-direction and the state of the jig abutting the end portion of the second support member on the other side in the second through-direction can be stabilized.

[0025] In the present invention, it is preferred that the surface of the first flat plate portion on one side in the second penetration direction is a plane perpendicular to the second penetration direction, and the surface of the second flat plate portion on the other side in the second penetration direction is a plane perpendicular to the second penetration direction. With this configuration, when the position of the second support member is adjusted, the state of the clamp abutting the end of the second support member on one side in the second penetration direction and the state of the clamp abutting the end of the second support member on the other side in the second penetration direction can be further stabilized.

[0026] In the present invention, the second sphere is preferably covered by the first flat portion when viewed from one side in the second through-hole direction, and by the second flat portion when viewed from the other side in the second through-hole direction. With this configuration, even if adhesive is applied to the second through-hole from both sides in the second through-hole direction to secure the second support member to the second through-hole, the first and second flat portions can prevent the adhesive from flowing into the area where the second sphere is located. This prevents the movement of the second arm relative to the second support member from being impeded by the adhesive.

[0027] In the present invention, the second arm preferably includes an arm-side spherical contact portion that contacts the second sphere, and the second support member preferably includes a support-member-side spherical contact portion that contacts the second sphere. The support-member-side spherical contact portion is positioned outboard of the arm-side spherical contact portion in the second cross direction. The second arrangement hole-forming member includes a restriction surface that restricts inward movement of the arm-side spherical contact portion relative to the second arrangement hole-forming member in the second cross direction. The second support member includes a first restriction portion and a second restriction portion. The first restriction portion restricts movement of the arm-side spherical contact portion in one direction relative to the second support member in the second through direction, and the second restriction portion restricts movement of the arm-side spherical contact portion in the other direction relative to the second support member in the second through direction. With this configuration, movement of the arm-side spherical contact portion relative to the second support member in both directions of the second cross direction and the second through direction can be restricted. Therefore, even when the position of the second support member is adjusted, the relative position of the arm-side spherical contact portion relative to the second support member can be prevented from shifting.

[0028] In the present invention, the second arm preferably includes an arm-side ball contact portion that contacts the second ball, the second support member preferably includes a support-member-side ball contact portion that contacts the second ball, the support-member-side ball contact portion being positioned outward of the arm-side ball contact portion in the second intersecting direction, the second support member being adhesively secured to the second arrangement hole, the intermediate member being a leaf spring formed by bending an elastic metal member into a predetermined shape, and the second arm applying a force outward in the second intersecting direction to the support-member-side ball contact portion. With this configuration, even after position adjustment, the second support member can be maintained in its predetermined position in the second arrangement hole by the force of the second arm, even without temporarily securing the second support member prior to adhesive securing to the second arrangement hole using an adhesive or the like. Therefore, securing the second support member to the second arrangement hole can be easily performed.

[0029] In addition, in order to solve the above-mentioned problems, in the manufacturing method of the optical unit with a shake correction function of the present invention, the optical unit with a shake correction function comprises: a movable body, which has a camera module; an intermediate component, which holds the movable body so as to be rotatable; a fixed body, which holds the intermediate component so as to be rotatable; a magnetic drive mechanism, which is used to rotate the movable body relative to the fixed body so as to tilt the optical axis of the camera module in an arbitrary direction; a first fulcrum portion, which serves as a fulcrum for the rotation of the movable body relative to the intermediate component; and a second fulcrum portion, which serves as a fulcrum for the rotation of the intermediate component relative to the fixed body, the movable body can rotate relative to the intermediate component with a first intersecting direction intersecting the optical axis of the camera module as the rotation axis, the intermediate component can rotate relative to the fixed body with a second intersecting direction intersecting the first intersecting direction and intersecting the optical axis of the camera module as the rotation axis, the first fulcrum portion is arranged at both end sides of the intermediate component in the first intersecting direction, the second fulcrum portion is arranged at both end sides of the intermediate component in the second intersecting direction, and the intermediate component has end portions in the first intersecting direction that constitute the intermediate component. and a second fulcrum portion comprising a first support member fixed to a movable body and a first sphere disposed between the first arm portion and the first support member, and a second fulcrum portion comprising a second support member fixed to a fixed body and a second sphere disposed between the second arm portion and the second support member, the movable body comprising a first arrangement hole forming member forming a first arrangement hole for arranging and fixing the first support member, and the fixed body comprising a second arrangement hole forming member forming a second arrangement hole for arranging and fixing the second support member, the manufacturing method of the optical unit with a shake correction function being characterized by comprising: a first position adjustment step for adjusting the position of the first support member relative to the first arrangement hole; and a first fixing step for fixing the first support member to the first arrangement hole after the first position adjustment step, or comprising: a second position adjustment step for adjusting the position of the second support member relative to the second arrangement hole; and a second fixing step for fixing the second support member to the second arrangement hole after the second position adjustment step.

[0030] In the method for manufacturing an optical unit with a shake correction function of the present invention, the position of the first support member relative to the first arrangement hole is adjusted in the first position adjustment step, or the position of the second support member relative to the second arrangement hole is adjusted in the second position adjustment step. Therefore, in the present invention, even if the optical axis gap between the movable body positioned at the reference position and the member that restricts movement of the movable body toward the subject, and the optical axis gap between the movable body positioned at the reference position and the member that restricts movement of the movable body toward the side opposite to the subject, vary due to variations in various components, the position adjustment of the first support member or the second support member ensures that the optical axis gap between the member that restricts movement of the movable body toward the subject, and the optical axis gap between the member that restricts movement of the movable body toward the side opposite to the subject, are greater than or equal to a predetermined amount. This ensures that the movable amount of the movable body from the reference position toward the subject, and the movable amount of the movable body from the reference position toward the side opposite to the subject, are greater than or equal to the predetermined amount.

[0031] Therefore, if an optical unit with a shake correction function is manufactured using the manufacturing method of the present invention, even if the movable amount of the movable body from the reference position to the subject side and the movable amount of the movable body from the reference position to the opposite side of the subject can be ensured to be greater than the specified amount, the design gap in the optical axis direction between the movable body arranged at the reference position and the component that limits the movement of the movable body to the subject side, and the design gap in the optical axis direction between the movable body arranged at the reference position and the component that limits the movement of the movable body to the opposite side of the subject can be narrowed. As a result, the optical unit with a shake correction function can be miniaturized in the optical axis direction of the camera module.

[0032] In addition, if an optical unit with a shake correction function is manufactured using the manufacturing method of the present invention, it is possible to ensure that the movable amount of the movable body from the reference position to the subject side and the movable amount of the movable body from the reference position to the opposite side of the subject are greater than the specified amount. Therefore, it is possible to prevent the production of defective products in which the movable amount of the movable body from the reference position to the subject side or the movable amount of the movable body from the reference position to the opposite side of the subject is a value outside the specification.

[0033] In the present invention, the method for manufacturing an optical unit with a shake correction function preferably includes a second position adjustment step and a second fixing step. When the direction of the optical axis of the camera module, i.e., one side in the optical axis direction, is defined as the subject side, and the side opposite to the subject side is defined as the opposite-to-subject side, the second arrangement hole is a second through-hole that penetrates the second arrangement hole forming member from the subject side to the opposite-to-subject side. In the second position adjustment step, the position of the second support member relative to the second arrangement hole is adjusted in the second through-direction, i.e., the direction in which the second through-hole penetrates. With this configuration, the position of the second support member relative to the second arrangement hole forming member can be more easily adjusted than when the position of the first support member is adjusted relative to the first arrangement hole forming member of a movable body that is rotatable relative to a fixed body.

[0034] In the present invention, preferably, if one side in the second penetration direction is defined as the second penetration direction one side and the other side in the second penetration direction is defined as the second penetration direction other side, the end portion of the second support member in the second penetration direction one side is a first flat plate portion formed in a flat plate shape, and the end portion of the second support member in the second penetration direction other side is a second flat plate portion formed in a flat plate shape. In the second position adjustment step, the position of the second support member relative to the second arrangement hole in the second penetration direction is adjusted using a first jig that abuts the first flat plate portion from the second penetration direction one side and a second jig that abuts the second flat plate portion from the second penetration direction other side. With this configuration, the position of the second support member can be easily adjusted using the first jig and the second jig.

[0035] Effects of the Invention

[0036] As described above, in the present invention, in an optical unit with a shake correction function having a shake correction function, even if the movable amount of the movable body having the camera module from a prescribed reference position toward the subject side and the movable amount of the movable body from the reference position toward the opposite side of the subject can be ensured to be greater than the prescribed amount, the optical unit with a shake correction function can be miniaturized in the optical axis direction of the camera module. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a perspective view of an optical unit with a shake correction function according to an embodiment of the present invention.

[0038] Figure 2 yes Figure 1 The exploded perspective view of the optical unit with shake correction function is shown.

[0039] Figure 3 It is from Figure 1 The optical unit with a shake correction function is shown in a top view with the camera module, wiring board, and cover removed.

[0040] Figure 4 (A) is Figure 1 A top view of the middle part is shown, Figure 4 (B) is Figure 1 The middle part is shown in a front view.

[0041] Figure 5 yes Figure 2 A perspective view of the first fulcrum portion is shown.

[0042] Figure 6 (A) is used to illustrate Figure 2 An enlarged top view of the structure of part E, Figure 6 (B) is used to illustrate Figure 2 An enlarged bottom view of the structure of section E.

[0043] Figure 7 (A) is Figure 2 The perspective view of the second fulcrum portion shown in FIG. Figure 7 (B) is Figure 2 A front view of the second fulcrum portion is shown.

[0044] Figure 8 (A) is used to illustrate Figure 2 An enlarged top view of the structure of Section F, Figure 8 (B) is used to illustrate Figure 2 An enlarged bottom view of the structure of section F.

[0045] Figure 9 Is used to illustrate Figure 2 An enlarged perspective view of the structure of section F.

[0046] Figure 10 Is used to illustrate Figure 3 A cross-sectional view of the structure of the GG cross-section.

[0047] Figure 11 Is used to illustrate the manufacturing Figure 1 sectional view showing a method of adjusting the position of the second supporting member in the optical axis direction in the case of an optical unit with a shake correction function. DETAILED DESCRIPTION

[0048] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0049] (Overall structure of the optical unit with shake correction function)

[0050] Figure 1 It is a perspective view of an optical unit 1 with a shake correction function according to an embodiment of the present invention. Figure 2 yes Figure 1 The exploded perspective view of the optical unit 1 with shake correction function is shown. Figure 3 It is from Figure 1 The illustrated optical unit 1 with a shake correction function is a plan view of a state in which the camera module 2, wiring substrates 10, 11, and cover members 18, 19 are removed. Figure 4 (A) is Figure 1 The top view of the middle part 4 is shown, Figure 4 (B) is Figure 1 The middle part 4 is shown in a front view.

[0051] In the following description, Figure 1 As shown in FIG, the three mutually orthogonal directions are set as the X direction, the Y direction and the Z direction, the X direction is set as the left-right direction, the Y direction is set as the front-back direction, and the Z direction is set as the up-down direction. Figure 1 The X1 direction side of the Figure 1 The X2 direction side is set as the "left" side, and the side of the front-back direction is set as the Figure 1 The Y1 direction side of the other side is set as the "front" side, and the Figure 1 The Y2 direction side is set as the "back" side, and the side of the up and down direction is set as the Figure 1 The Z1 direction side of the etc. is set as the "upper" side, and the opposite side is Figure 1 The Z2 direction side is set as the "downward" side.

[0052] The optical unit 1 with a shake correction function (hereinafter referred to as "optical unit 1") of this embodiment is a small and thin unit installed in a portable device such as a smartphone, and includes a camera module 2 having a lens for shooting and an imaging element. The optical unit 1 has a shake correction function, which is used to avoid disturbances in the captured image when shaking occurs during shooting. The optical unit 1 is formed as a whole into a thin, flat rectangular parallelepiped. The optical unit 1 of this embodiment is formed into a square shape when viewed from the direction of the optical axis L of the camera module 2, that is, the optical axis direction. The four side surfaces of the optical unit 1 are parallel to the ZX plane formed by the left-right direction and the up-down direction, or the YZ plane formed by the front-back direction and the up-down direction.

[0053] The optical unit 1 includes a movable body 3 having a camera module 2 (see Figure 1 ); rotatably holding the intermediate member 4 of the movable body 3; and rotatably holding the fixed body 5 of the intermediate member 4 (reference Figure 1 The movable body 3 can be moved in a first intersecting direction ( Figure 3 That is, the movable body 3 can rotate relative to the intermediate member 4 with the first intersecting direction as the first axis L1 (see Figure 3) is the rotation center and rotates relative to the intermediate member 4. The first intersecting direction of this embodiment is orthogonal to the optical axis L.

[0054] The intermediate member 4 can be arranged in a second intersecting direction ( Figure 3 That is, the intermediate member 4 can rotate relative to the fixed body 5 with the second axis L2 (see FIG. 1 ) as the axial direction of rotation. Figure 3 ) is the center of rotation relative to the fixed body 5. In this embodiment, the second intersecting direction is orthogonal to the first intersecting direction. In this way, a two-axis gimbal mechanism is formed between the movable body 3 and the fixed body 5.

[0055] In this embodiment, when no current is supplied to the first drive coil 25 and the second drive coil 27, described later, the movable body 3 is positioned at a predetermined reference position, and the optical axis L of the camera module 2 is positioned at a predetermined reference position. When the movable body 3 is positioned at the reference position and the optical axis L of the camera module 2 is at the reference position, the optical axis direction of the camera module 2 is aligned with the vertical direction. Furthermore, when performing shake correction, the inclination of the optical axis L of the camera module 2 relative to the vertical direction is minimal. Therefore, the optical axis direction of the camera module 2 is substantially aligned with the vertical direction.

[0056] In addition, when the movable body 3 is arranged in the reference position, the second intersecting direction (W direction) is perpendicular to the optical axis L. That is, when the movable body 3 is arranged in the reference position and does not rotate 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 rotates relative to the intermediate member 4, the second intersecting direction intersects the optical axis L, but not at a right angle. When viewed from the top, the second intersecting direction (W direction) is directed toward the front-back direction relative to the front-back direction. Figure 3 The clockwise direction is offset by about 45°.

[0057] The optical unit 1 includes magnetic drive mechanisms 8 and 9 for rotating the movable body 3 relative to the fixed body 5 so as to tilt the optical axis L of the camera module 2 in an arbitrary direction (see FIG. Figure 3 ). In addition, the optical unit 1 includes: a wiring substrate 10, which is extended from the camera module 2; a wiring substrate 11, on which are mounted a first drive coil 25, which constitutes a part of the magnetic drive mechanism 8, and a second drive coil 27, which constitutes a part of the magnetic drive mechanism 9, which is described later; a first fulcrum portion 12, which serves as a fulcrum for the rotation of the movable body 3 relative to the intermediate member 4; and a second fulcrum portion 13, which serves as a fulcrum for the rotation of the intermediate member 4 relative to the fixed body 5. The first fulcrum portion 12 is arranged on both end sides of the intermediate member 4 in the first intersecting direction, and the second fulcrum portion 13 is arranged on both end sides of the intermediate member 4 in the second intersecting direction.

[0058] The movable body 3 is formed as a whole into a flat, roughly rectangular parallelepiped shape with a thin thickness in the direction of the optical axis. The movable body 3 has a retaining member 16 for fixing the camera module 2. The retaining member 16 is formed of a resin material. The retaining member 16 is formed into a square frame shape, and the outer shape of the retaining member 16 when viewed from the optical axis direction when the movable body 3 is arranged in the reference position is square. In addition, when the movable body 3 is arranged in the reference position, two of the four sides of the outer peripheral surface of the retaining member 16 having a square outer shape are parallel to the front-to-back direction, and the remaining two sides are parallel to the left-to-right direction. In addition, when the movable body 3 is arranged in the reference position, the upper end face and the lower end face of the retaining member 16 become planes orthogonal to the up-down direction.

[0059] The retainer 16 has a first receiving hole 16a formed therein. A first support member 20, described later and constituting part of the first fulcrum portion 12, is positioned and secured within this first receiving hole 16a. The first receiving holes 16a are formed at both ends of the retainer 16 in the first intersecting direction. Specifically, the first receiving holes 16a are formed at two locations: the right front corner and the left rear corner of the retainer 16. The retainer 16 of this embodiment is a first receiving hole-forming member having the first receiving holes 16a formed therein. The specific structure of the first receiving holes 16a will be described later.

[0060] The camera module 2 is fixed to the inner circumference of the holder 16 so that the outer circumference of the lower end 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 at the lower end of the camera module 2, and the camera module 2 captures images of a subject disposed above the camera module 2.

[0061] As described above, the inclination of the optical axis L of the camera module 2 relative to the vertical direction during shake correction is minimal, and the optical axis direction of the camera module 2 is substantially aligned with the vertical direction. Therefore, if one side of the optical axis direction of the camera module 2 (specifically, the side on which the subject is disposed along the optical axis direction of the camera module 2) is defined as the subject side, and the side opposite to the subject side (specifically, the side on which the imaging element is disposed along the optical axis direction of the camera module 2) is defined as the opposite-to-subject side, the subject side is substantially aligned with the upper side, and the opposite-to-subject side is substantially aligned with the lower side.

[0062] The intermediate component 4 is formed from a metal material such as stainless steel. Furthermore, the intermediate component 4 is a leaf spring formed by bending a resilient metal plate into a predetermined shape. The intermediate component 4 consists of a base 4a positioned above the retaining member 16, two first arms 4b extending from the base 4a in a first intersecting direction, and two second arms 4c extending from the base 4a in a second intersecting direction. The base 4a is formed into a roughly square frame shape. The upper end of the camera module 2 is positioned within the inner periphery of the base 4a.

[0063] The first arm portion 4b is connected to both ends of the base portion 4a in the first cross direction. The first arm portion 4b forms the end portion of the intermediate member 4 in the first cross direction. The first arm portion 4b comprises an inclined portion 4d extending obliquely downward from the end portion of the base portion 4a in the first cross direction toward the outside of the first cross direction, and a front end portion 4e extending downward from the lower end of the inclined portion 4d. The front end portion 4e is formed into a flat plate with its thickness in the first cross direction.

[0064] The lower end side portion of the front end portion 4e is arranged in the first arrangement hole 16a. A hemispherical recess 4f is formed at the lower end portion of the front end portion 4e (see Figure 4 (B)), the recess 4f is configured with a portion of the first spherical body 22 described later constituting a portion of the first fulcrum portion 12. The recess 4f is recessed toward the inner side of the first cross direction. The front end portion 4e is formed with a cutout portion 4g (see Figure 4 (B) The cutout portion 4g is formed on the upper side of the recessed portion 4f.

[0065] The second arm portion 4c is connected to both ends of the base portion 4a in the second cross direction. The second arm portion 4c forms the end portion of the intermediate member 4 in the second cross direction. The second arm portion 4c comprises an inclined portion 4h extending obliquely downward from the end portion of the base portion 4a in the second cross direction toward the outside of the second cross direction; a connecting portion 4j extending outward from the lower end of the inclined portion 4h in the second cross direction; and a front end portion 4k extending downward from the outer end of the connecting portion 4j in the second cross direction. The front end portion 4k is formed into a flat plate with its thickness in the second cross direction.

[0066] The connecting portion 4j and the front end portion 4k are arranged on the outer peripheral side of the retaining member 16. In addition, the connecting portion 4j and the front end portion 4k are arranged in the second arrangement hole 17a described later. A hemispherical recess 4p is formed at the lower end of the front end portion 4k (see Figure 4 (B)) A portion of the second spherical body 23, described later, which constitutes a portion of the second fulcrum portion 13, is disposed in the recess 4p. The recess 4p is recessed inward in the second intersecting direction. The width of the lower end of the tip 4k in the first intersecting direction is wider than the width of the upper end of the tip 4k in the first intersecting direction. A stepped surface 4r, which is substantially perpendicular to the vertical direction, is formed at the boundary between the lower and upper ends of the tip 4k. The stepped surface 4r is formed on the upper side of the recess 4p.

[0067] The fixed body 5 includes a frame-shaped housing 17 disposed around the outer periphery of the movable body 3 and the intermediate member 4; a cover member 18 covering the side and lower surfaces of the housing 17; and a cover member 19 covering the upper surface of the housing 17. The intermediate member 4 is rotatably held by the housing 17. The housing 17 is formed of a resin material. It has the shape of a flat, square cylinder with both ends open in the vertical direction. The upper and lower end surfaces of the housing 17 are planes perpendicular to the vertical direction.

[0068] The housing 17 has a square frame shape when viewed from above. When viewed from above, two of the four sides of the outer peripheral surface of the housing 17, which has a square shape, are parallel to the front-to-back direction, and the remaining two sides are parallel to the left-to-right direction. In other words, when viewed from above, the four sides of the outer peripheral surface of the housing 17 are parallel to the front-to-back direction or the left-to-right direction.

[0069] The housing 17 has a second receiving hole 17a formed therein. A second support member 21, described later and constituting a portion of the second fulcrum portion 13, is positioned and secured within this second receiving hole 17a. The second receiving holes 17a are formed at both ends of the housing 17 in the second intersecting direction. Specifically, the second receiving holes 17a are formed at two locations on the housing 17, one at the left front corner and the other at the right rear corner. The housing 17 of this embodiment is a second receiving hole-forming member having the second receiving holes 17a formed therein. The specific structure of the second receiving holes 17a will be described later.

[0070] The cover part 18 is formed in the shape of a square tube with a bottom, and has a bottom 18a formed in the shape of a square flat plate and a cylindrical portion 18b in the shape of a square tube rising upward from the bottom 18a. The outer shape of the cover part 18 when viewed from the top and bottom is square. When viewed from the top and bottom, two of the four sides constituting the outer peripheral surface of the cover part 18 with a square outer shape are parallel to the front-to-back direction, and the remaining two sides are parallel to the left-to-right direction. The bottom 18a constitutes the bottom surface of the optical unit 1. The upper surface of the bottom 18a is a plane perpendicular to the up-down direction. The upper surface of the bottom 18a contacts the lower end surface of the shell 17. The bottom 18a is arranged on the lower side of the retaining member 16. The cylindrical portion 18b constitutes the side surface of the optical unit 1. The cylindrical portion 18b covers the outer peripheral side of the shell 17.

[0071] The cover part 19 is mainly composed of a roughly flat cover part 19a that covers the upper end surface of the shell 17. The cover part 19 is fixed to the upper end portion of the shell 17. The cover part 19a is formed in a square frame shape. The outer shape of the cover part 19 when viewed from the top and bottom directions is square. When viewed from the top and bottom directions, two of the four sides of the outer peripheral surface of the cover part 19 that forms the square outer shape 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 part 4 are arranged on the inner peripheral side of the cover part 19a. The lower surface of the cover part 19a is in contact with the upper end surface of the shell 17. The cover part 19a is arranged at a position higher than the retaining member 16.

[0072] The first fulcrum portion 12 includes: a first support member 20 fixed to the movable body 3; and a spherical first sphere 22 (see FIG. 2 ) disposed between the first arm portion 4b and the first support member 20; Figure 5 ). The first support member 20 is fixed to the holder 16. The first sphere 22 is fixed to the first support member 20. The second fulcrum portion 13 includes: a second support member 21 fixed to the fixed body 5; and a spherical second sphere 23 arranged between the second arm portion 4c and the second support member 21 (see Figure 7 The second support member 21 is fixed to the housing 17. The second sphere 23 is fixed to the second support member 21. The more specific structures of the first supporting point portion 12 and the second supporting point portion 13 will be described later.

[0073] The magnetic drive mechanism 8 includes a first drive magnet 24 and a first drive coil 25 disposed 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 disposed opposite each other in the front-back direction. The first drive magnet 24 and the second drive magnet 26 are formed into rectangular flat plates. The first drive coil 25 and the second drive coil 27 are, for example, air-core coils formed by winding a conductive wire into an air-core shape.

[0074] The first drive magnet 24 is disposed in a recess formed on the left side of the holder 16 and is fixed to the left surface of the holder 16. The first drive coil 25 is disposed in a through-hole formed on the left surface of the housing 17. Furthermore, the first drive coil 25 is mounted on the wiring board 11. The magnetic drive mechanism 8 rotates the movable body 3 relative to the fixed body 5 about an axis perpendicular to the optical axis L of the camera module 2 and parallel to the front-to-back direction.

[0075] The second drive magnet 26 is disposed in a recess formed in the rear side 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 surface of the housing 17. Furthermore, the second drive coil 27 is mounted on the wiring board 11. The magnetic drive mechanism 9 rotates the movable body 3 relative to the fixed body 5 about an axis perpendicular to the optical axis L of the camera module 2 and parallel to the left-right direction.

[0076] Wiring substrate 10 is, for example, a rigid-flexible substrate formed by integrating a flexible printed circuit board and a rigid substrate. Wiring substrate 10 is extended to the right from camera module 2 and then routed along the right side and front surface of housing 17. Furthermore, wiring substrate 10 is extended forward from the center of the front surface of cover member 18. Wiring substrate 11 is a flexible printed circuit board. Wiring substrate 11 is routed along the rear, left, and front surfaces of housing 17. Furthermore, wiring substrate 11 is extended forward from the left end of the front surface of cover member 18. Wiring substrate 11 is fixed to the outer peripheral surface of housing 17.

[0077] In optical unit 1, when a change in the tilt of movable body 3 is detected by a predetermined detection mechanism, a current is supplied to at least one of first drive coil 25 and second drive coil 27 based on the detection result of the detection mechanism, thereby correcting for vibration. Magnetic drive mechanisms 8 and 9 rotate movable body 3 relative to fixed body 5 about at least one of first axis L1 and second axis L2.

[0078] (Structure of the First Support Point and the First Arrangement Hole)

[0079] Figure 5 yes Figure 2 A perspective view of the first fulcrum portion 12 is shown. Figure 6 (A) is used to illustrate Figure 2 An enlarged top view of the structure of part E, Figure 6 (B) is used to illustrate Figure 2 An enlarged bottom view of the structure of section E.

[0080] The first support member 20 is formed by bending a flat metal plate into a predetermined shape. The first support member 20 is primarily composed of a base portion 20a formed in a substantially rectangular, flat plate shape. The base portion 20a is positioned so that its thickness aligns with the first intersecting direction. A through-hole is formed in the center of the base portion 20a, into which a portion of the first sphere 22 is positioned. The first sphere 22 is secured to the base portion 20a from the inside in the first intersecting direction, with the majority of the first sphere 22 positioned inward of the base portion 20a in the first intersecting direction.

[0081] The first support member 20 includes two arms 20b connected to the upper end of the base 20a; a bottom plate 20c connected to the lower end of the base 20a; and two retaining members 20d connected to the bottom plate 20c. In this embodiment, the first support member 20 comprises the base 20a, the two arms 20b, the bottom plate 20c, and the two retaining members 20d. The first support member 20 is positioned in the first receiving hole 16a. Furthermore, the first support member 20 is secured in the first receiving hole 16a using an adhesive. In other words, the first support member 20 is adhesively secured in the first receiving hole 16a.

[0082] The arm portion 20b is connected to the upper end portion of the base portion 20a on both sides of the second cross direction. The arm portion 20b is composed of a portion extending from the base portion 20a toward the inner side of the first cross direction and a portion extending from the inner end of the portion in the first cross direction toward the outer side of the second cross direction, forming a roughly L-shape. The bottom plate portion 20c is formed in a rectangular flat plate shape. When the movable body 3 is configured in the reference position, the thickness direction of the bottom plate portion 20c is consistent with the up and down direction. The bottom plate portion 20c extends from the lower end of the base portion 20a toward the inner side of the first cross direction. The anti-slip portion 20d extends from both ends of the bottom plate portion 20c in the second cross direction toward the outer side of the second cross direction and the upper side along the inclined direction. The anti-slip portion 20d can be elastically deformed toward the inner side of the second cross direction.

[0083] The first arrangement hole 16a is formed so as to be recessed from the upper surface of the retaining member 16 toward the lower side. In addition, the first arrangement hole 16a is formed so as to be connected to the inner peripheral side of the retaining member 16. The lower side of the first arrangement hole 16a becomes the bottom 16b that blocks the lower side of the first arrangement hole 16a. The bottom 16b is formed with two openings 16c that pass through the bottom 16b. The opening 16c is a hole for forming an engaging surface 16d that can be contacted by the upper end of the anti-slip portion 20d from the lower side. The engaging surface 16d is a plane orthogonal to the formation direction of the first arrangement hole 16a, which is formed so as to be recessed from the upper surface of the retaining member 16 toward the lower side.

[0084] The outer surface of the first configuration hole 16a in the first cross direction becomes the abutment surface 16e that abuts the base 20a. The abutment surface 16e is a plane perpendicular to the first cross direction. A groove 16f for allowing the adhesive to flow is formed on the abutment surface 16e. A groove 16g for allowing the adhesive to flow is also formed on the upper surface of the bottom 16b. A recess 16h for accumulating the adhesive is formed on the upper side of the abutment surface 16e. A limiting surface 16j is formed on the inner portion of the first configuration hole 16a in the first cross direction. The limiting surface 16j is used to limit the movement of the first support member 20 inward relative to the retaining member 16 in the first cross direction. The limiting surface 16j is a plane perpendicular to the first cross direction.

[0085] In the first support member 20 positioned in the first arrangement hole 16a, the outer surface of the base portion 20a in the first intersecting direction abuts the abutment surface 16e, and the lower surface of the bottom plate portion 20c abuts the upper surface of the bottom portion 16b. Furthermore, the arm portion 20b is positioned outside the restriction surface 16j in the first intersecting direction, and the retaining portion 20d is positioned below the engagement surface 16d. The lower end of the front end portion 4e of the first arm portion 4b positioned in the first arrangement hole 16a is positioned inward of the base portion 20a in the first intersecting direction and above the bottom plate portion 20c. A portion of the arm portion 20b is positioned within the notch 4g. A portion of the front end portion 4e is positioned between the two arm portions 20b.

[0086] The arm portion 20b functions to restrict upward movement of the front end portion 4e relative to the first support member 20. The bottom plate portion 20c functions to restrict downward movement of the front end portion 4e relative to the first support member 20. A portion of the first sphere 22 is disposed within the recess 4f. The first sphere 22 contacts the recess 4f from the outside in the first intersecting direction. The elasticity of the first arm portion 4b forces the base 20a and the first sphere 22 outward in the first intersecting direction. In other words, the first arm portion 4b forces the base 20a and the first sphere 22 outward in the first intersecting direction.

[0087] (Structure of the Second Supporting Point and the Second Arrangement Hole)

[0088] Figure 7 (A) is Figure 2 The perspective view of the second fulcrum portion 13 shown in FIG. Figure 7 (B) is Figure 2 A front view of the second fulcrum portion 13 is shown. Figure 8 (A) is used to illustrate Figure 2 An enlarged top view of the structure of Section F, Figure 8 (B) is used to illustrate Figure 2 An enlarged bottom view of the structure of section F.

[0089] Figure 9 Is used to illustrate Figure 2 An enlarged perspective view of the structure of section F. Figure 10 Is used to illustrate Figure 3 A cross-sectional view of the structure of the GG cross-section.

[0090] The second support member 21 is formed by bending a flat metal plate into a predetermined shape. The second support member 21 is mainly composed of a base 21a formed in a substantially rectangular flat plate shape. The base 21a is arranged in such a manner that the thickness direction of the base 21a is consistent with the second cross direction. A through hole is formed in the center of the base 21a for arranging a part of the second sphere 23. The second sphere 23 is fixed to the base 21a from the inside of the second cross direction, and most of the second sphere 23 is arranged on the inside of the base 21a in the second cross direction. The second sphere 23 contacts the edge of the through hole formed in the center of the base 21a. The base 21a of this embodiment becomes the support member side sphere contact portion that contacts the second sphere 23.

[0091] The second support member 21 includes two arms 21b connected to the base 21a, a top plate 21c connected to the upper end of the base 21a, and a bottom plate 21d connected to the lower end of the base 21a. In this embodiment, the second support member 21 comprises the base 21a, the two arms 21b, the top plate 21c, and the bottom plate 21d. The second support member 21 is positioned in the second receiving hole 17a. Furthermore, the second support member 21 is secured to the second receiving hole 17a using an adhesive. In other words, the second support member 21 is adhesively secured to the second receiving hole 17a.

[0092] The arm portion 21b is connected to the base portion 21a on both sides of the first cross direction. Furthermore, the arm portion 21b is connected to the base portion 21a on the upper side of the second sphere 23. The arm portion 21b is formed into a generally L-shape, consisting of a portion extending inward from the base portion 21a in the second cross direction and a portion extending outward from the inner end of the portion in the second cross direction in the first cross direction.

[0093] The top plate portion 21c and the bottom plate portion 21d are formed into rectangular flat plates. The thickness direction of the top plate portion 21c and the thickness direction of the bottom plate portion 21d are consistent with the up-down direction. The upper surface and lower surface of the top plate portion 21c are planes perpendicular to the up-down direction. The upper surface and lower surface of the bottom plate portion 21d are planes perpendicular to the up-down direction. The top plate portion 21c extends from the upper end of the base portion 21a inwardly in the second intersecting direction. The top plate portion 21c constitutes the upper end portion of the second support member 21. The long side direction of the rectangular top plate portion 21c is consistent with the first intersecting direction. The bottom plate portion 21d extends from the lower end of the base portion 21a inwardly in the second intersecting direction. The bottom plate portion 21d constitutes the lower end portion of the second support member 21. The long side direction of the rectangular bottom plate portion 21d is consistent with the first intersecting direction.

[0094] The width of the top plate portion 21c in the second intersecting direction is wider than the width of the bottom plate portion 21d in the second intersecting direction. The width of the top plate portion 21c in the first intersecting direction is equal to the width of the bottom plate portion 21d in the first intersecting direction. When viewed from above, the second sphere 23 is covered by the top plate portion 21c. When viewed from below, the second sphere 23 is covered by the bottom plate portion 21d.

[0095] The second arrangement hole 17a is a second through-hole that penetrates the housing 17 from the subject side to the side opposite the subject. That is, the second arrangement hole 17a extends vertically through the housing 17. In this embodiment, the vertical direction (Z direction) is the through-direction of the second arrangement hole 17a, which serves as the second through-hole. Furthermore, the upper side (Z1 direction side) is the second through-direction side, which serves as one side of the second through-direction, and the lower side (Z2 direction side) is the second through-direction side, which serves as the other side of the second through-direction.

[0096] Furthermore, in this embodiment, the top plate portion 21c, which constitutes the end portion (upper end portion) on one side in the second through direction of the second support member 21, serves as the first flat plate portion, and the bottom plate portion 21d, which constitutes the end portion (lower end portion) on the other side in the second through direction of the second support member 21, serves as the second flat plate portion. The surface (upper surface) on one side in the second through direction of the top plate portion 21c, which serves as the first flat plate portion, and the surface (lower surface) on the other side in the second through direction of the bottom plate portion 21d, which serves as the second flat plate portion, form planes perpendicular to the vertical direction, which serves as the second through direction.

[0097] The upper portion of the second arrangement hole 17a, excluding the lower end, communicates with the inner circumference of the housing 17. The inner side of the lower end of the second arrangement hole 17a in the second intersecting direction is defined by a flat inner wall portion 17b. The inner wall portion 17b is arranged so that its thickness aligns with the second intersecting direction. A cutout is formed between the upper end surface of the housing 17 and the upper end surface of the inner wall portion 17b. This cutout ensures that the upper portion of the second arrangement hole 17a, excluding the lower end, communicates with the inner circumference of the housing 17.

[0098] The outer surface of the second placement hole 17a in the second intersecting direction forms abutment surface 17c that abuts the base portion 21a. Abutment surface 17c is a plane perpendicular to the second intersecting direction. A groove 17d is formed on abutment surface 17c for allowing the adhesive to flow. A recess 17e is formed above abutment surface 17c for accumulating the adhesive. Side surfaces 17f on both sides of the second placement hole 17a in the first intersecting direction form planes perpendicular to the first intersecting direction.

[0099] The outer side surface of the inner wall portion 17b in the second cross-direction serves as a restriction surface 17g. This restriction surface 17g is used to restrict the inward movement of the front end portion 4k of the second arm portion 4c relative to the housing 17 in the second cross-direction. Specifically, the restriction surface 17g is formed on the inner side of the second arrangement hole 17a in the second cross-direction to restrict the inward movement of the front end portion 4k relative to the housing 17 in the second cross-direction. The restriction surface 17g is a plane perpendicular to the second cross-direction. The restriction surface 17g also serves to restrict the inward movement of the second support member 21 relative to the housing 17 in the second cross-direction.

[0100] Furthermore, the upper end of the second receiving hole 17a is chamfered, forming a chamfered portion. Furthermore, the outer portion of the lower end of the second receiving hole 17a in the second intersecting direction and the sides thereof in the first intersecting direction (i.e., the portion excluding the portion defined by the inner sidewall portion 17b) is chamfered, forming a chamfered portion in the outer portion of the lower end of the second receiving hole 17a in the second intersecting direction and the sides thereof in the first intersecting direction.

[0101] The second support member 21, positioned in the second receiving hole 17a, is positioned between the two side surfaces 17f in the first intersecting direction. The outer surface of the base portion 21a in the second intersecting direction abuts against the abutment surface 17c. Most of the second support member 21, excluding the inner portion of the top plate portion 21c in the second intersecting direction, is positioned between the abutment surface 17c and the restriction surface 17g in the first intersecting direction. The inner portion of the top plate portion 21c in the second intersecting direction is positioned above the inner wall portion 17b.

[0102] Therefore, before being adhesively fixed to the second receiving hole 17a, the second support member 21 can slide vertically within the second receiving hole 17a until the inner portion of the top plate portion 21c in the second intersecting direction contacts the upper end surface of the inner wall portion 17b. This allows the position of the second support member 21 relative to the second receiving hole 17a to be adjusted vertically within the second receiving hole 17a before the second support member 21 is adhesively fixed to the second receiving hole 17a. That is, in this embodiment, the second receiving hole 17a is formed in a shape that allows the position of the second support member 21 within the second receiving hole 17a to be adjusted vertically before being fixed to the second receiving hole 17a. When the second support member 21 is adhesively fixed to the second receiving hole 17a, for example, the upper side of the top plate portion 21c and the lower side of the bottom plate portion 21d are covered with adhesive.

[0103] like Figure 8As shown in (A), when viewed from above, the entire top plate portion 21c, which constitutes the upper end portion of the second support member 21, is positioned further inward of the second arrangement hole 17a than the edge 17h of the second arrangement hole 17a. Specifically, when viewed from above, the entire top plate portion 21c is positioned further inward of the second arrangement hole 17a than the edge 17h of the second arrangement hole 17a, excluding the chamfered portion. Therefore, when viewing the second arrangement hole 17a from above before the second support member 21 is adhesively secured to the second arrangement hole 17a, the entire top plate portion 21c is visible. The end surface of the top plate portion 21c in the first intersecting direction faces the side surface 17f with a relatively narrow gap therebetween.

[0104] In addition, if Figure 8 As shown in (B), when viewed from below, the entire bottom plate portion 21d, which constitutes the lower end portion of the second support member 21, is positioned further inward of the second receiving hole 17a than the edge 17j of the second receiving hole 17a. Specifically, when viewed from below, the entire bottom plate portion 21d is positioned further inward of the second receiving hole 17a than the edge 17j of the second receiving hole 17a, excluding the chamfered portion. Therefore, when viewing the second receiving hole 17a from below before the second support member 21 is adhesively secured to the second receiving hole 17a, the entire bottom plate portion 21d is visible. The end surface of the bottom plate portion 21d in the first intersecting direction faces the side surface 17f with a relatively narrow gap therebetween. The inner end surface of the bottom plate portion 21d in the second intersecting direction faces the restricting surface 17g with a relatively narrow gap therebetween.

[0105] like Figure 10 As shown, the front end portion 4k of the second arm portion 4c, which is arranged in the second arrangement hole 17a, is arranged on the inner side of the base portion 21a in the second cross direction. In other words, the base portion 21a is arranged on the outer side of the front end portion 4k in the second cross direction. In addition, the front end portion 4k is arranged on the outer side of the limiting surface 17g in the second cross direction and on the upper side of the bottom plate portion 21d. The connecting portion 4j is arranged between the inner side wall portion 17b and the top plate portion 21c in the vertical direction. A portion of the arm portion 21b is arranged on the upper side of the step surface 4r of the front end portion 4k. A portion of the front end portion 4k is arranged between the two arm portions 21b.

[0106] The arm portion 21b functions to restrict upward movement of the front end portion 4k relative to the second support member 21. The bottom plate portion 21d functions to restrict downward movement of the front end portion 4k relative to the second support member 21. Specifically, the second support member 21 includes the arm portion 21b for restricting upward movement of the front end portion 4k relative to the second support member 21, and the bottom plate portion 21d for restricting downward movement of the front end portion 4k relative to the second support member 21. In this embodiment, the arm portion 21b serves as a first restricting portion, and the bottom plate portion 21d serves as a second restricting portion.

[0107] A portion of the second sphere 23 is positioned within the recess 4p. The second sphere 23 contacts the recess 4p from the outside in the second intersecting direction. The elasticity of the second arm 4c biases the base 21a and second sphere 23 outward in the second intersecting direction. In other words, the second arm 4c biases the base 21a and second sphere 23 outward in the second intersecting direction. The tip 4k of this embodiment serves as the arm-side sphere contact portion that contacts the second sphere 23.

[0108] (Method for adjusting the position of the second supporting member)

[0109] Figure 11 Is used to illustrate the manufacturing Figure 1 1 is a cross-sectional view showing a method of adjusting the vertical position of the second supporting member 21 in the optical unit 1 shown.

[0110] In the optical unit 1, when the movable body 3 is positioned in the reference position, a predetermined gap S1 is formed in the vertical direction between the upper end surface of the holder 16 and the lower surface of the cover 19a, and a predetermined gap S2 is formed between the lower end surface of the holder 16 and the upper surface of the base 18a. When positioned in the reference position, the movable body 3 can move upward (toward the subject) until the upper end surface of the holder 16 contacts the lower surface of the cover 19a, and can also move downward (toward the side opposite the subject) until the lower end surface of the holder 16 contacts the upper surface of the base 18a. In other words, in this embodiment, the vertical movable range of the movable body 3 is defined by the cover 19a and the base 18a.

[0111] In this embodiment, when the two second support members 21 are moved in the vertical direction, the movable body 3, which is held by the intermediate member 4, moves in the vertical direction together with the intermediate member 4. Furthermore, in this embodiment, to maintain the gaps S1 and S2 within a predetermined range even if there are variations in the dimensions of various components such as the second support members 21, the intermediate member 4, and the first support member 20, during the manufacture of the optical unit 1, the second support members 21 are positioned relative to the second receiving holes 17a and then adhesively fixed to the second receiving holes 17a. Specifically, the method for manufacturing the optical unit 1 includes a second position adjustment step for adjusting the position of the second support member 21 relative to the second receiving holes 17a, and a second fixing step for fixing the second support member 21 to the second receiving holes 17a after the second position adjustment step.

[0112] Before the second position adjustment process, for example, the assembly of components other than the cover components 18 and 19 is completed. The second position adjustment process and the second fixing process are performed before the cover components 18 and 19 are mounted on the housing 17. In the second position adjustment process, the position of the second support component 21 relative to the second arrangement hole 17a is adjusted in the vertical direction. In addition, in the second position adjustment process, Figure 11 As shown, the position of the second support member 21 relative to the second arrangement hole 17a is adjusted in the vertical direction using a first jig 30 that contacts the upper surface of the top plate 21c from above and a second jig 31 that contacts the lower surface of the bottom plate 21d from below.

[0113] For example, a driving mechanism that moves the first clamp 30 and the second clamp 31 up and down is connected to the first clamp 30 and the second clamp 31. In the second position adjustment process, the position of the second support member 21 is adjusted while the first clamp 30 and the second clamp 31 are pushed and pulled by the power of the driving mechanism. In addition, in the second position adjustment process, the position of the second support member 21 is adjusted while confirming the relative position of the center portion of the movable body 3 (the portion through which the optical axis L passes) with respect to the reference surface of the housing 17 (for example, the lower end surface of the housing 17) using a displacement meter, for example. In this case, the driving mechanism moves automatically based on the detection result of the displacement meter. That is, the position adjustment of the second support member 21 is performed automatically. However, the position adjustment of the second support member 21 can also be performed manually.

[0114] In the second fixing step, adhesive is injected into the second receiving hole 17a from above and below the second receiving hole 17a, thereby fixing the second support member 21 in the second receiving hole 17a. In this embodiment, the adhesive used in the second fixing step is, for example, a thermosetting adhesive. However, the adhesive used in the second fixing step may also be an adhesive other than a thermosetting adhesive, such as an ultraviolet curing adhesive.

[0115] (Main Effects of This Embodiment)

[0116] As described above, in this embodiment, the position of the second support member 21 relative to the second receiving hole 17a can be adjusted vertically within the second receiving hole 17a before the second support member 21 is adhesively fixed to the second receiving hole 17a. Furthermore, in this embodiment, the position of the second support member 21 relative to the second receiving hole 17a is adjusted in the second position adjustment step so that the gap S1 between the upper end surface of the holder 16 and the lower surface of the cover portion 19a, and the gap S2 between the lower end surface of the holder 16 and the upper surface of the bottom portion 18a, fall within predetermined ranges, even if there are variations in the dimensions of the various components.

[0117] Therefore, in this embodiment, even if there are variations in the dimensions of various components, it is possible to ensure that the movable amount of the movable body 3 upward from the reference position and the movable amount of the movable body 3 downward from the reference position are greater than the specified amount. Therefore, in this embodiment, even if it is possible to ensure that the movable amount of the movable body 3 upward from the reference position and the movable amount of the movable body 3 downward from the reference position are greater than the specified amount, the gaps S1 and S2 in the design can be narrowed, resulting in the optical unit 1 being miniaturized in the vertical direction.

[0118] Furthermore, in this embodiment, since the movable amount of the movable body 3 upward from the reference position and the movable amount of the movable body 3 downward from the reference position can be ensured to be greater than the specified amount, it is possible to prevent the occurrence of defective products in which the movable amount of the movable body 3 upward from the reference position and the movable amount of the movable body 3 downward from the reference position are outside the specification. In addition, in this embodiment, since the position of the second support member 21 relative to the second arrangement hole 17a is adjusted using the first jig 30 abutting the top plate portion 21c and the second jig 31 abutting the bottom plate portion 21d, the position of the second support member 21 can be easily adjusted using the first jig 30 and the second jig 31.

[0119] In this embodiment, the entire top plate portion 21c, which constitutes the upper end portion of the second support member 21, is positioned inward of the second receiving hole 17a relative to the edge 17h of the second receiving hole 17a when viewed from above. The entire bottom plate portion 21d, which constitutes the lower end portion of the second support member 21, is positioned inward of the second receiving hole 17a relative to the edge 17j of the second receiving hole 17a when viewed from below. Therefore, in this embodiment, during the second position adjustment step, the first jig 30 can be easily brought into contact with the top plate portion 21c, and the second jig 31 can be easily brought into contact with the bottom plate portion 21d.

[0120] In this embodiment, the top plate portion 21c and the bottom plate portion 21d are formed into flat plates, with the upper surface of the top plate portion 21c and the lower surface of the bottom plate portion 21d forming planes perpendicular to the vertical direction. Therefore, in this embodiment, during the second position adjustment step, the first jig 30 in contact with the upper surface of the top plate portion 21c can be stabilized, and the second jig 31 in contact with the lower surface of the bottom plate portion 21d can be stabilized.

[0121] In this embodiment, the second sphere 23 is covered by the top plate portion 21c when viewed from above, and by the bottom plate portion 21d when viewed from below. Therefore, in this embodiment, during the second fixing step, the adhesive injected into the second receiving hole 17a from above and below the second receiving hole 17a is prevented from flowing into the area where the second sphere 23 is disposed. Therefore, in this embodiment, the movement of the second arm portion 4c relative to the second support member 21 is prevented from being impeded by the adhesive.

[0122] Furthermore, in this embodiment, the inner portion of the top plate portion 21c in the second intersecting direction is positioned above the inner wall portion 17b. The end surface of the top plate portion 21c in the first intersecting direction faces the side surface 17f with a relatively narrow gap therebetween. Furthermore, the end surface of the bottom plate portion 21d in the first intersecting direction faces the side surface 17f with a relatively narrow gap therebetween, and the inner end surface of the bottom plate portion 21d in the second intersecting direction faces the restriction surface 17g with a relatively narrow gap therebetween. Therefore, in this embodiment, during the second fixing step, the adhesive injected into the second receiving hole 17a from above and below the second receiving hole 17a can be effectively prevented from flowing into the area where the second ball 23 is positioned. Therefore, in this embodiment, the movement of the second arm portion 4c relative to the second support member 21 can be effectively prevented from being impeded by the adhesive.

[0123] In this embodiment, the tip end 4k of the second arm portion 4c is positioned inward of the base portion 21a in the second intersecting direction, and movement of the tip end 4k inward in the second intersecting direction is restricted by the restriction surface 17g. Furthermore, in this embodiment, upward movement of the tip end 4k relative to the second support member 21 is restricted by the arm portion 21b, while downward movement of the tip end 4k relative to the second support member 21 is restricted by the bottom plate portion 21d. Therefore, in this embodiment, even when the position of the second support member 21 is adjusted, the relative position of the tip end 4k relative to the second support member 21 is prevented from shifting.

[0124] In this embodiment, the second arm portion 4c applies a force to the base portion 21a and the second sphere 23 outward in the second intersecting direction. Therefore, in this embodiment, even after the second position adjustment step, even without temporarily securing the second support member 21 prior to being bonded to the second receiving hole 17a using an adhesive or the like, the force of the second arm portion 4c can maintain the second support member 21 at a predetermined position within the second receiving hole 17a. Therefore, in this embodiment, securing the second support member 21 to the second receiving hole 17a can be easily performed.

[0125] (Other embodiments)

[0126] The above-described embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited thereto, and various modifications can be made without departing from the spirit of the present invention.

[0127] In the above embodiment, the first sphere 22 can also be fixed to the front end 4e of the first arm 4b. In this case, a recessed portion is formed in the base 20a of the first support member 20 for accommodating a portion of the first sphere 22. Similarly, the second sphere 23 can also be fixed to the front end 4k of the second arm 4c. In this case, a recessed portion is formed in the base 21a of the second support member 21 for accommodating a portion of the second sphere 23.

[0128] In the above embodiment, the upper surface of the top plate portion 21c may not be perpendicular to the vertical direction, and the lower surface of the bottom plate portion 21d may not be perpendicular to the vertical direction. Furthermore, in the above embodiment, a portion of the top plate portion 21c may be positioned further outward of the second receiving hole 17a than the edge 17h of the second receiving hole 17a when viewed from above. Furthermore, in the above embodiment, a portion of the bottom plate portion 21d may be positioned further outward of the second receiving hole 17a than the edge 17j of the second receiving hole 17a when viewed from below.

[0129] In the above embodiment, the second support member 21 may not include the top plate portion 21c. In this case, during the second position adjustment step, the first clamp 30 is brought into contact with the upper end surface of the base 21a. In this case, the upper end surface of the base 21a is, for example, a plane perpendicular to the vertical direction. In the above embodiment, the second support member 21 may not include the bottom plate portion 21d. In this case, during the second position adjustment step, the second clamp 31 is brought into contact with the lower end surface of the base 21a. In this case, the lower end surface of the base 21a is, for example, a plane perpendicular to the vertical direction.

[0130] In the above embodiment, instead of performing position adjustment of the second support member 21 relative to the second receiving hole 17a, the first support member 20 may be positioned relative to the first receiving hole 16a so that the gaps S1 and S2 fall within a predetermined range. That is, in the above embodiment, instead of performing the second position adjustment step and the second fixing step, a first position adjustment step of adjusting the position of the first support member 20 relative to the first receiving hole 16a and a first fixing step of fixing the first support member 20 to the first receiving hole 16a after the first position adjustment step may be performed.

[0131] In this case, the first arrangement hole 16a is, for example, a first through hole that penetrates the holder 16 from the subject side to the opposite side thereof, and the bottom portion 16b is not formed in the holder 16. The first arrangement hole 16a is formed in such a shape that the position of the first support member 20, which is fixed to the first arrangement hole 16a before being fixed to the first arrangement hole 16a, can be adjusted in the first arrangement hole 16a in a first penetration direction (specifically, a vertical direction when the movable body 3 is positioned in the reference position) that is the penetration direction of the first arrangement hole 16a.

[0132] Furthermore, in this case, when viewed from above (more specifically, from the first penetration direction, which is one side of the first penetration direction), the upper end of the base portion 20a, which serves as the upper end of the first support member 20, is positioned entirely inward of the edge of the first receiving hole 16a. Furthermore, when viewed from below (more specifically, from the other first penetration direction, which is the other side of the first penetration direction), the bottom plate portion 20c, which constitutes the lower end of the first support member 20, is positioned entirely inward of the edge of the first receiving hole 16a. Furthermore, in this case, for example, the lower side of the second receiving hole 17a serves as a bottom portion that blocks the lower side of the second receiving hole 17a, and the lower surface of the bottom plate portion 21d of the second support member 21 abuts against the upper surface of this bottom portion.

[0133] Even in this case, as in the above-described embodiment, even if the movable amounts of the movable body 3 upward and downward from the reference position can be maintained at or above the predetermined amounts, the designed gaps S1 and S2 can be narrowed, resulting in a vertical reduction in the size of the optical unit 1. However, in this case, since the first support member 20 must be positioned relative to the first receiving hole 16a of the holder 16, which is rotatable relative to the fixed body 5 and the intermediate member 4, position adjustment of the first support member 20 becomes more complex compared to position adjustment of the second support member 21 relative to the second receiving hole 17a of the housing 17. In other words, position adjustment of the second support member 21 is easier than position adjustment of the first support member 20.

[0134] In the above embodiment, the optical unit 1 may also include a rotation mechanism that rotates the camera module 2 relative to the intermediate member 4 about the optical axis L of the camera module 2. 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 about the optical axis L of the camera module 2, and the first intermediate member is rotatable relative to the second intermediate member about the first axis L1.

[0135] In the above embodiment, the first intersecting direction (V direction) may not be perpendicular to the optical axis L. In addition, in the above embodiment, the second intersecting direction (W direction) may not be perpendicular to the first intersecting direction. In addition, in the above embodiment, the optical unit 1 may be installed in various devices other than portable devices.

[0136] Explanation of symbols

[0137] 1 optical unit (with shake correction function)

[0138] 2. Camera module

[0139] 3 movable bodies

[0140] 4 Middle parts

[0141] 4b First arm

[0142] 4c Second arm

[0143] 4k Tip (Arm side ball contact area)

[0144] 5 Fixed body

[0145] 8.9 Magnetic drive mechanism

[0146] 12 First fulcrum

[0147] 13 Second Fulcrum Department

[0148] 16. Holder (first arrangement hole forming member)

[0149] 16a First configuration hole

[0150] 17 Housing (Second Arrangement Hole Forming Member)

[0151] 17a Second configuration hole (second through hole)

[0152] 17g restricted noodles

[0153] 17h, 17j: edge (edge of the second through hole)

[0154] 20 first supporting member

[0155] 21 Second supporting member

[0156] 21a Base (support member side ball contact portion)

[0157] 21b Arm (first limiting portion)

[0158] 21c Top plate (first flat plate)

[0159] 21d bottom plate portion (second flat plate portion, second restriction portion)

[0160] 22 First Sphere

[0161] 23 Second Sphere

[0162] 30 First fixture

[0163] 31 Second clamp

[0164] L optical axis

[0165] V First cross direction

[0166] W Second cross direction

[0167] Z Second penetration direction

[0168] Z1 Second penetration direction side

[0169] Z2 The other side of the second penetration direction.

Claims

1. An optical unit with a shake correction function, characterized in that: have: a movable body having a camera module; an intermediate member that holds the movable body so as to be rotatable; a fixing body that holds the intermediate member rotatably; a magnetic drive mechanism, the magnetic drive mechanism being used to rotate the movable body relative to the fixed body so as to tilt the optical axis of the camera module in any direction; a first fulcrum portion serving as a fulcrum for the rotation of the movable body relative to the intermediate member; as well as a second fulcrum portion, the second fulcrum portion serving as a fulcrum for the rotation of the intermediate member relative to the fixed body; The movable body is rotatable relative to the intermediate member with a first intersecting direction intersecting the optical axis of the camera module as an axial direction of rotation. The intermediate component is rotatable relative to the fixed body with a second intersecting direction intersecting the first intersecting direction and the optical axis of the camera module as an axial direction of rotation, The first supporting point portions are arranged at both end sides of the intermediate member in the first intersecting direction. The second supporting point portions are arranged on both end sides of the intermediate member in the second intersecting direction. The intermediate member includes: two first arm portions constituting an end portion of the intermediate member in the first intersecting direction; and two second arm portions constituting an end portion of the intermediate member in the second intersecting direction. The first fulcrum portion includes: a first support member fixed to the movable body; and a first spherical body arranged between the first arm portion and the first support member. The second fulcrum portion includes: a second support member fixed to the fixed body; and a second sphere disposed between the second arm portion and the second support member. The movable body includes a first arrangement hole forming member having a first arrangement hole formed therein for arranging and fixing the first supporting member. The fixing body includes a second arrangement hole forming member having a second arrangement hole formed therein for arranging and fixing the second supporting member. The direction of the optical axis of the camera module, that is, one side of the optical axis direction is set as the subject side, and the opposite side of the subject side is set as the opposite side of the subject. The first arrangement hole is a first through hole that passes through the first arrangement hole forming component from the subject side to the opposite side of the subject, or the second arrangement hole is a second through hole that passes through the second arrangement hole forming component from the subject side to the opposite side of the subject. When the first arrangement hole is the first through hole, The first through hole is formed into a shape such that the position of the first support member before being fixed to the first through hole can be adjusted in the first through hole in a first through direction as the through direction of the first through hole. When viewed from the first penetration direction side, which is one side of the first penetration direction, the entire end portion of the first supporting member on the first penetration direction side is arranged at a position closer to the inside of the first through-hole than the edge of the first through-hole, and when viewed from the other first penetration direction side, which is the other side of the first penetration direction, the entire end portion of the first supporting member on the other side of the first penetration direction is arranged at a position closer to the inside of the first through-hole than the edge of the first through-hole. When the second arrangement hole is the second through hole, The second through hole is formed in a shape such that the position of the second support member before being fixed to the second through hole can be adjusted in the second through hole in a second through direction as the through direction of the second through hole. When viewed from the second through direction side, which is one side of the second through direction, the end portion of the second supporting member on the second through direction side is entirely arranged at a position closer to the inside of the second through hole than the edge of the second through hole, and when viewed from the other second through direction side, which is the other side of the second through direction, the end portion of the second supporting member on the other side of the second through direction is entirely arranged at a position closer to the inside of the second through hole than the edge of the second through hole.

2. The optical unit with a shake correction function according to claim 1, wherein: The second configuration hole is the second through hole.

3. The optical unit with a shake correction function according to claim 2, wherein: The end portion of the second supporting member on the second penetration direction side is a first flat plate portion formed in a flat plate shape. An end portion of the second supporting member on the other side in the second penetration direction is a second flat plate portion formed in a flat plate shape.

4. The optical unit with a shake correction function according to claim 3, wherein: The surface of the first flat plate portion on the second penetration direction side is a plane perpendicular to the second penetration direction. A surface of the second flat plate portion on the other side in the second penetration direction is a plane perpendicular to the second penetration direction.

5. The optical unit with a shake correction function according to claim 3 or 4, characterized in that: When viewed from the second penetrating direction, the second spherical body is covered by the first flat plate portion. When viewed from the other side in the second penetrating direction, the second spherical body is covered by the second flat plate portion.

6. The optical unit with a shake correction function according to any one of claims 2 to 5, characterized in that: The second arm portion includes an arm portion side spherical body contact portion that contacts the second spherical body. The second supporting member includes a supporting member side ball contact portion that contacts the second ball. The support member side ball contact portion is arranged outside the arm side ball contact portion in the second intersecting direction. A restriction surface is formed on the second arrangement hole forming member, the restriction surface being used to restrict the arm-side ball contact portion from moving inwardly in the second intersecting direction relative to the second arrangement hole forming member. A first limiting portion and a second limiting portion are formed on the second supporting component. The first limiting portion is used to limit the movement of the arm-side ball contact portion relative to the second supporting component toward one side of the second penetration direction. The second limiting portion is used to limit the movement of the arm-side ball contact portion relative to the second supporting component toward the other side of the second penetration direction.

7. The optical unit with a shake correction function according to any one of claims 2 to 6, characterized in that: The second arm portion includes an arm portion side spherical body contact portion that contacts the second spherical body. The second supporting member includes a supporting member side ball contact portion that contacts the second ball. The support member side ball contact portion is arranged outside the arm side ball contact portion in the second intersecting direction. The intermediate member is a leaf spring formed by bending a metal member having elasticity into a predetermined shape. The second arm portion applies force to the support member side ball contact portion outward in the second intersecting direction. The second supporting member is adhesively fixed to the second arrangement hole.

8. A method for manufacturing an optical unit with a shake correction function, The optical unit with shake correction function has: a movable body having a camera module; an intermediate member that holds the movable body so as to be rotatable; a fixing body that holds the intermediate member rotatably; a magnetic drive mechanism, the magnetic drive mechanism being used to rotate the movable body relative to the fixed body so as to tilt the optical axis of the camera module in any direction; a first fulcrum portion serving as a fulcrum for the rotation of the movable body relative to the intermediate member; as well as a second fulcrum portion, the second fulcrum portion serving as a fulcrum for the rotation of the intermediate member relative to the fixed body; The movable body is rotatable relative to the intermediate member with a first intersecting direction intersecting the optical axis of the camera module as an axial direction of rotation. The intermediate component is rotatable relative to the fixed body with a second intersecting direction intersecting the first intersecting direction and the optical axis of the camera module as an axial direction of rotation, The first supporting point portions are arranged at both end sides of the intermediate member in the first intersecting direction. The second supporting point portions are arranged on both end sides of the intermediate member in the second intersecting direction. The intermediate member includes: two first arm portions constituting an end portion of the intermediate member in the first intersecting direction; and two second arm portions constituting an end portion of the intermediate member in the second intersecting direction. The first fulcrum portion includes: a first support member fixed to the movable body; and a first spherical body arranged between the first arm portion and the first support member. The second fulcrum portion includes: a second support member fixed to the fixed body; and a second sphere disposed between the second arm portion and the second support member. The movable body includes a first arrangement hole forming member having a first arrangement hole formed therein for arranging and fixing the first supporting member. The fixing body includes a second arrangement hole forming member having a second arrangement hole formed therein for arranging and fixing the second supporting member. It is characterized in that comprising: a first position adjustment step of adjusting the position of the first support member relative to the first arrangement hole; and a first fixing step of fixing the first support member to the first arrangement hole after the first position adjustment step, or The method comprises: a second position adjustment step of adjusting the position of the second supporting member relative to the second arrangement hole; and a second fixing step of fixing the second supporting member to the second arrangement hole after the second position adjustment step.

9. The method for manufacturing an optical unit with a shake correction function according to claim 8, wherein: The method comprises the second position adjusting step and the second fixing step, The direction of the optical axis of the camera module, that is, one side of the optical axis direction is set as the subject side, and the opposite side of the subject side is set as the opposite side of the subject. The second arrangement hole is a second through hole that penetrates the second arrangement hole forming member from the subject side to the opposite side of the subject. In the second position adjustment step, the position of the second support member relative to the second arrangement hole is adjusted in a second penetration direction, which is a penetration direction of the second through-hole.

10. The method for manufacturing an optical unit with a shake correction function according to claim 9, wherein: One side of the second penetrating direction is defined as the second penetrating direction one side, and the other side of the second penetrating direction is defined as the second penetrating direction other side. The end portion of the second supporting member on the second penetration direction side is a first flat plate portion formed in a flat plate shape. The end portion of the second supporting member on the other side in the second penetration direction is a second flat plate portion formed in a flat plate shape. In the second position adjustment step, the position of the second support member relative to the second arrangement hole is adjusted in the second penetration direction using a first jig that abuts the first flat plate portion from one side of the second penetration direction and a second jig that abuts the second flat plate portion from the other side of the second penetration direction.

Citation Information

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