Optical Unit

Abstract

To accurately and simply position a coil of a drive mechanism that rotationally moves a movable body with respect to a stationary body.SOLUTION: There is provided an optical unit 1 comprising: a movable body 14 equipped with an optical module 12; a stationary body 16 that rotatably supports the movable body 14, with a direction crossing an optical axis direction D1 of the optical module 12 serving as an axis of rotation; and a drive mechanism 18 for rotationally moving the movable body 14 with respect to the stationary body 16. The drive mechanism 18 includes a magnet 24 fitted to the movable body 14, a coil 32 fitted to the stationary body 16, a flexible printed circuit board 52 connected to the coil 32, and a reinforcement board 60 where the coil 32 and the flexible printed circuit board 52 are fixed in place, the reinforcement board 60 being provided with a protrusion 61, the stationary body 16 being provided with a contact part 161 which the protrusion 61 comes into contact with.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to an optical unit. [Background technology]

[0002] Conventionally, various optical units have been used that include a movable body having an optical module, a fixed body that rotatably supports the movable body, and a drive mechanism that rotates and moves the movable body relative to the fixed body. For example, Patent Document 1 discloses an optical unit that includes a movable body having an optical module, a fixed body that rotatably supports the movable body, and a correction drive mechanism that rotates and moves the movable body relative to the fixed body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Publication 2020-160373 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional optical unit capable of rotating a movable body having an optical module relative to a fixed body as described above, a driving mechanism having a magnet and a coil connected to a flexible printed circuit board is generally used. However, in the optical unit having such a configuration, for example, when positioning the coil relative to the fixed body, the coil may be deviated from the desired position. This is because the flexible printed circuit board to which the coil is fixed is attached to the fixed body with an adhesive or the like, and the coil is temporarily fixed to the fixed body and then fixed. Therefore, the temporary fixing position of the flexible printed circuit board relative to the fixed body is shifted due to manufacturing tolerances of the flexible printed circuit board and a deviation in the attachment position, and the fixing position of the coil relative to the fixed body is also shifted. In addition, UV adhesive is often used as an adhesive for temporary fixing, but the use of UV adhesive requires a UV irradiation device, etc., which increases costs and may complicate the manufacturing process of the optical unit. Therefore, the present invention aims to accurately and easily position the coil of the driving mechanism that rotates the movable body relative to the fixed body. [Means for solving the problem]

[0005] The optical unit of the present invention comprises a movable body having an optical module, a fixed body that rotatably supports the movable body with a rotation axis in a direction intersecting the optical axis direction of the optical module, and a drive mechanism that rotates the movable body relative to the fixed body, wherein the drive mechanism has a magnet provided on the movable body, a coil provided on the fixed body, a flexible printed circuit board connected to the coil, and a reinforcing plate to which the coil and the flexible printed circuit board are fixed, wherein a convex portion is provided on the reinforcing plate, and a contact portion with which the convex portion comes into contact is provided on the fixed body.

[0006] According to this aspect, the coil and the flexible printed circuit board are fixed to the reinforcing plate, and the reinforcing plate is fixed to the fixed body by contacting the protrusions of the reinforcing plate with the contact parts of the fixed body. Therefore, the reinforcing plate is accurately and easily positioned with respect to the fixed body by the protrusions of the reinforcing plate and the contact parts of the fixed body, and therefore the coil is also accurately and easily positioned with respect to the fixed body.

[0007] In addition, in the optical unit of the present invention, the fixed body may be configured to have an abutted portion that is abutted by an abutting portion provided in an area of ​​the reinforcing plate opposite the convex portion when the convex portion contacts the contact portion. With this configuration, the coil can be positioned particularly accurately with respect to the fixed body by the abutting portion of the reinforcing plate and the abutted portion of the fixed body, in addition to the contact portion of the reinforcing plate and the fixed body. Also, by the abutting portion of the reinforcing plate and the abutted portion of the fixed body abutting at a position opposite to the position where the convex portion of the reinforcing plate and the contact portion of the fixed body contact each other, it is possible to prevent the convex portion of the reinforcing plate from coming off the contact portion of the fixed body.

[0008] In the optical unit of the present invention, the contact direction of the protrusion with respect to the contact portion can be configured to be the optical axis direction. In an optical unit configured to rotatably support a movable body relative to a fixed body with a direction intersecting the optical axis direction as a rotation axis, accuracy of the position of a coil with respect to a magnet, particularly in the optical axis direction, is required. By using such a configuration, it is possible to accurately position the coil with respect to the magnet, particularly in the optical axis direction.

[0009] Furthermore, in the optical unit of the present invention, the convex portion and the contact portion can be configured so that the convex portion contacts the contact portion by being pressed in. With such a configuration, the convex portion of the reinforcing plate and the contact portion of the fixed body can be positioned and fixed accurately without causing rattling or the like.

[0010] In the optical unit of the present invention, at least one of the reinforcing plate and the flexible printed circuit board may be bonded to the fixed body with an adhesive. With this configuration, the fixed body and the reinforcing plate can be firmly fixed, and misalignment of the reinforcing plate relative to the fixed body can be particularly effectively suppressed, and misalignment of the coil relative to the fixed body can be particularly effectively suppressed.

[0011] In the optical unit of the present invention, the reinforcing plate may be configured to have a plurality of the protrusions, whereby the reinforcing plate can be positioned relative to the fixed body at a plurality of locations, the reinforcing plate can be positioned particularly accurately relative to the fixed body, and the coil can be positioned particularly accurately relative to the fixed body.

[0012] In addition, in the method for manufacturing an optical unit of the present invention, the method includes a movable body having an optical module, a fixed body that rotatably supports the movable body with a rotation axis in a direction intersecting the optical axis direction of the optical module, and a drive mechanism that rotates and moves the movable body relative to the fixed body, wherein the drive mechanism is a magnet provided on the movable body, a coil provided on the fixed body, a flexible printed circuit board connected to the coil, and a reinforcing plate to which the coil and the flexible printed circuit board are fixed, and is characterized in that it includes the steps of: providing a convex portion on the reinforcing plate; fixing the coil and the flexible printed circuit board to the reinforcing plate; forming the fixed body having a contact portion with which the convex portion can come into contact and an abutted portion against which an abutment portion provided in an area of ​​the reinforcing plate opposite the convex portion can abut; and contacting the convex portion to the contact portion while abutting the abutment portion to the abutted portion.

[0013] According to this aspect, the reinforcing plate is accurately positioned relative to the fixed body by the convex portion of the reinforcing plate and the contact portion of the fixed body. Furthermore, the reinforcing plate is particularly accurately positioned relative to the fixed body by the abutting portion of the reinforcing plate and the abutted portion of the fixed body in addition to the convex portion of the reinforcing plate and the contact portion of the fixed body, and the coil can be particularly accurately positioned relative to the fixed body. Furthermore, by pressing the convex portion of the reinforcing plate into the contact portion of the fixed body, the convex portion of the reinforcing plate and the contact portion of the fixed body can be accurately positioned and fixed easily and without causing any rattling. Furthermore, since there is no need to temporarily fix the coil with a UV adhesive or the like, the coil can be easily positioned relative to the fixed body. Effect of the Invention

[0014] The optical unit of the present invention can accurately and easily position the coil of the drive mechanism that rotates the movable body relative to the fixed body. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view of a smartphone equipped with an optical unit according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a plan view of an optical unit according to an embodiment of the present invention. [Diagram 3] FIG. 1 is a perspective view of an optical unit according to an embodiment of the present invention. [Figure 4] FIG. 2 is an exploded perspective view of an optical unit according to an embodiment of the present invention. [Diagram 5] 5 is an exploded perspective view of an optical unit according to an embodiment of the present invention, seen from an angle different from that of FIG. 4. [Figure 6] FIG. 2 is a front view of an optical unit according to an embodiment of the present invention. [Figure 7] FIG. 2 is a side view of an optical unit according to an embodiment of the present invention.

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In each figure, the X-axis, Y-axis, and Z-axis are perpendicular to each other, and the views seen in the +X and -X directions are side views, the views seen in the +Y direction are plan views, the views seen in the -Y direction are bottom views, the views seen in the +Z direction are rear views, and the views seen in the -Z direction are front views. The +Y direction corresponds to the incident direction D1 of the light beam from outside.

[0017] <Outline of device equipped with optical unit> First, an optical unit 1 according to a first embodiment of the present invention will be described. Fig. 1 is a schematic perspective view of a smartphone 100 as an example of a device including the optical unit 1 according to the present embodiment. The optical unit 1 according to the present embodiment can be preferably used in the smartphone 100. This is because the optical unit 1 according to the present embodiment can be configured to be thin, and the thickness of the smartphone 100 in the Y-axis direction can be configured to be thin. However, the optical unit 1 according to the present embodiment is not limited to the smartphone 100, and can be used in various devices such as cameras and videos without any particular limitation.

[0018] 1, the smartphone 100 includes a cover glass 101 onto which a light beam is incident. The cover glass 101 of the smartphone 100 includes an optical unit 1 inside. The smartphone 100 is configured such that a light beam is incident from the outside through the cover glass 101 in an incident direction D1, and a subject image can be captured based on the incident light beam.

[0019] <Overall configuration of the optical unit> 2 to 5, the configuration of the optical unit 1 according to the present embodiment will be described in brief. The optical unit 1 includes a movable body 14 including an optical module 12 such as a lens 12a and an image sensor 50, and a fixed body 16 that holds the movable body 14 in a displaceable state in a direction (pitching direction) around the X-axis direction as a rotation axis (swing axis) and a direction (yawing direction) around the Z-axis direction as a rotation axis (swing axis). The optical unit 1 also includes a drive mechanism 18 (drive mechanism 18A and drive mechanism 18B) that drives the movable body 14 in the pitching direction and the yawing direction, and a support mechanism 20 that supports the movable body 14 rotatably (swingably) in the pitching direction and the yawing direction relative to the fixed body 16.

[0020] <About the moving body> 4 and 5, the optical unit 1 of this embodiment has a movable body main body 14A and a holder 14B as the movable body 14. The movable body main body 14A has an optical module 12. The holder 14B holds the movable body main body 14A and is provided with magnets 24 (magnets 24A and 24B) that constitute the drive mechanism 18. In addition, in FIGS. 4 and 5, the optical unit 1 is shown in a state in which the image sensor 50 and the flexible printed circuit board 51 connected to the image sensor 50 are fixed to the holder 14B. However, the image sensor 50 is attached to the movable body main body 14A, and the image sensor 50 and the flexible printed circuit board 51 connected to the image sensor 50 can also be considered to constitute a part of the movable body main body 14A.

[0021] Thus, the movable body 14 includes a movable body main body 14A on which the optical module 12 and the like are provided, and a holder 14B on which the magnet 24 and the like are provided. The holder 14B is configured as a rectangular frame-shaped member that is provided so as to surround the remaining four faces, excluding the front face (the face on the subject side) on which the lens 12a of the optical module 12 is provided, and the rear face on the opposite side. The holder 14B in this embodiment is configured so that the optical module 12 can be detachably attached, as an example. However, the optical module 12 and the holder 14B may be integrally configured. The magnets 24A and 24B for correcting pitching and yawing are attached to the outer faces of the two faces of the holder 14B that face the fixed body 16.

[0022] The optical unit 1 of this embodiment includes a fixed body 16, as shown in Figs. 2 to 5. In Figs. 2 to 5, the fixed body 16 includes a coil 32A at a position facing the magnet 24A, and a coil 32B at a position facing the magnet 24B. In Figs. 4 and 5, the coil 32A and the coil 32B are shown at positions away from the fixed body 16, but the coil 32A is arranged at a coil arrangement position 16f (see Fig. 5) of the fixed body 16, and the coil 32B is arranged at a coil arrangement position 16g (see Fig. 5) of the fixed body 16. However, the details of the positioning of the coil 32 (coil 32A and coil 32B) with respect to the fixed body 16 will be described later. In this embodiment, the coils 32A and 32B are both configured as wound coils as an example, but the coils 32 may be incorporated as a pattern into the board wiring to form a patterned board (coil board).

[0023] <Optical module> The optical module 12 of this embodiment can be used in, for example, a thin camera mounted on a camera-equipped mobile phone other than a smartphone, a tablet PC, etc., in addition to the smartphone 100. The optical module 12 has a lens 12a on the subject side and has built-in optical equipment for capturing an image.

[0024] Here, the optical unit 1 of this embodiment, as an example, has a built-in drive mechanism 18 that corrects pitching shake (shake in the rotation direction around the X-axis direction as the rotation axis) and yawing shake (shake in the rotation direction around the Z-axis direction as the rotation axis) that occurs in the optical module 12, and is configured to be able to correct pitching shake and yawing shake. In this embodiment, the optical module 12 is configured to be able to correct pitching shake and yawing shake, but may also be configured to be able to correct rolling shake (shake in the rotation direction around the Y-axis direction as the rotation axis). The image sensor 50 can also be considered to constitute a part of the optical module 12.

[0025] <About the drive mechanism> In this embodiment, when the movable body 14 is disposed within the fixed body 16, the magnet 24A and the coil 32A, and the magnet 24B and the coil 32B, face each other as shown in Figures 4 and 5. In this embodiment, the pair of the magnet 24A and the coil 32A, and the pair of the magnet 24B and the coil 32B each constitute a driving mechanism 18. The pitching and yawing of the movable body 14 are corrected by the driving mechanism 18.

[0026] Moreover, pitching and yawing are corrected as follows. When the optical unit 1 shakes in both or either one of the pitching and yawing directions, the shake is detected by a magnetic sensor (Hall elements 33A and 33B: see Figs. 4 and 5), and the drive mechanism 18 is driven based on the result. Alternatively, the shake of the optical unit 1 may be detected using a shake detection sensor (gyroscope) or the like. Based on the shake detection result, the drive mechanism 18 acts to correct the shake. That is, a current is passed through each coil 32 so as to move the movable body 14 in a direction that cancels the shake of the optical unit 1, and thus the shake is corrected. The Hall elements 33 (Hall elements 33A and 33B) can also be regarded as components of the drive mechanism 18.

[0027] In this manner, the optical unit 1 of this embodiment includes a driving mechanism 18 that rotates the movable body 14 with respect to the fixed body 16 around the pitching axis direction and the yawing axis direction as the rotation axis. Here, the driving mechanism 18 is preferably disposed in a position other than the side (+Z direction side) where the flexible printed circuit board 51 is disposed in the X-axis direction with respect to the movable body 14. This is because the driving mechanism 18 can be disposed on the side where the flexible printed circuit board 51 is not formed, so that it is not necessary to make the optical unit 1 larger in order to suppress contact between the driving mechanism 18 and the flexible printed circuit board 51, and the optical unit 1 can be made smaller. Note that the term "rotation" in this specification does not necessarily mean a 360° rotation, but includes a case where the optical unit 1 swings in the rotation direction.

[0028] Here, although details will be described later, both coil 32A and coil 32B are connected to and fixed to flexible printed circuit board 52. A reinforcing plate 60 is attached to flexible printed circuit board 52. In optical unit 1 of the present embodiment, the reinforcing plate 60 is fixed to fixed body 16, whereby flexible printed circuit board 52 and coil 32A and coil 32B fixed thereto are fixed to fixed body 16.

[0029] <About the support mechanism> The support mechanism 20 of this embodiment is a gimbal mechanism with spring properties formed by bending a metal flat plate material. Specifically, as shown in Figs. 4 and 5, the support mechanism 20 is configured by including a gimbal frame portion 23 provided on the subject side as an example, a first leg portion 21 formed by bending the four corner portions of the gimbal frame portion 23 by 90° in the optical axis direction, and a second leg portion 22. Note that the first leg portion 21 and the second leg portion 22 do not necessarily have to be entirely plate-shaped, and only a part of them may be formed into a plate shape to exhibit spring properties. Also, one of the first leg portion 21 and the second leg portion 22 may be formed into a shape other than a plate shape (for example, a rod shape, etc.). In addition, the support mechanism 20 in this embodiment is configured to rotatably support the movable body 14 relative to the fixed body 16 with the two directions, the pitching direction and the yawing direction, as the directions of the rotation axis, but it may also be configured to rotatably support the movable body 14 relative to the fixed body 16 with only one of the pitching direction or the yawing direction as the direction of the rotation axis.

[0030] In the support mechanism 20 of this embodiment, a concave curved surface 21a recessed inward is provided on the first leg 21, and a concave curved surface 22a recessed inward is provided on the second leg 22. The first leg 21 is configured so that a force is applied so that the concave curved surface 21a spreads outward, and the second leg 22 is configured so that a force is applied so that the concave curved surface 22a spreads outward.

[0031] 4 and 5, a fixed body support part 41 is provided at a position facing the concave curved surface 21a of the fixed body 16, the fixed body support part 41 having a spherical convex curved surface 41a that protrudes inward and fits into the concave curved surface 21a. Also, as shown in Fig. 4 and 5, a movable body support part 42 is provided at a position facing the concave curved surface 22a of the holder 14B, the movable body support part 42 having a spherical convex curved surface 42a that protrudes inward and fits into the concave curved surface 22a. The fixed body support part 41 is attached to the attachment position 16e of the fixed body 16, and the movable body support part 42 is attached to the attachment position 14a of the holder 14B.

[0032] Here, the optical unit 1 of this embodiment rotatably supports the support mechanism 20 with respect to the fixed body 16 around the first axis L1 (see FIG. 2) as a rotation axis by disposing the convex curved surface 41a within the concave curved surface 21a and pressing the concave curved surface 21a against the convex curved surface 41a. Also, the optical unit 1 of this embodiment rotatably supports the movable body 14 with respect to the support mechanism 20 around the second axis L2 (see FIG. 2) as a rotation axis by disposing the convex curved surface 42a within the concave curved surface 22a and pressing the concave curved surface 22a against the convex curved surface 42a. That is, the support mechanism 20 of this embodiment rotatably supports the support mechanism 20 with respect to the fixed body 16 around the first axis L1 as a rotation axis and rotatably supports the movable body 14 with respect to the support mechanism 20 around the second axis L2 as a rotation axis, thereby rotatably supporting the movable body 14 with respect to the fixed body 16 around all directions intersecting with the optical axis direction (Y-axis direction) as a rotation axis. The optical unit 1 of this embodiment is configured so that, by driving the driving mechanism 18, the movable body 14 can be rotated relative to the fixed body 16 around the pitching direction and the yawing direction as rotation axes.

[0033] <Coil positioning structure> Details of the positioning structure of the coil 32 will be described below with reference to Figs. 2 to 5, as well as Figs. 6 and 7. As described above, in the optical unit 1 of this embodiment, both the coil 32A and the coil 32B are connected and fixed to the flexible printed circuit board 52, and the reinforcing plate 60 is attached to the flexible printed circuit board 52. That is, the flexible printed circuit board 52 and the reinforcing plate 60 can also be considered as components of the drive mechanism 18. Here, the reinforcing plate 60 is formed of polyimide having high rigidity. Therefore, by accurately positioning and fixing the reinforcing plate 60 to the fixed body 16, the flexible printed circuit board 52 and the coil 32 can be accurately positioned and fixed. However, there is no particular limitation on the material of the reinforcing plate 60.

[0034] To summarize, as described above, the optical unit 1 of this embodiment includes a movable body 14 equipped with an optical module 12, a fixed body 16 that rotatably supports the movable body 14 via a support mechanism 20 with a direction intersecting the optical axis direction (incident direction D1) of the optical module 12 as a rotation axis, and a drive mechanism 18 that rotates the movable body 14 relative to the fixed body 16. The drive mechanism 18 includes a magnet 24 provided on the movable body 14, a coil 32 provided on the fixed body 16, a flexible printed circuit board 52 connected to the coil 32, and a reinforcing plate 60 to which the coil 32 and the flexible printed circuit board 52 are fixed.

[0035] 6 and 7, the reinforcing plate 60 is provided with a protrusion 61, and the fixed body 16 is provided with a contact portion 161 with which the protrusion 61 comes into contact. In detail, the optical unit 1 of this embodiment has two reinforcing plates as the reinforcing plate 60, a reinforcing plate 60A provided at a position facing the coil 32A and a reinforcing plate 60B provided at a position facing the coil 32B, and two protrusions 61 protruding in the +Y direction are formed on both the reinforcing plate 60A and the reinforcing plate 60B. Then, as shown in FIG. 6, the two protrusions 61 of the reinforcing plate 60A come into contact with the contact portion 161b, and as shown in FIG. 7, the two protrusions 61 of the reinforcing plate 60B come into contact with the contact portion 161d.

[0036] Thus, in the optical unit 1 of this embodiment, the coil 32 and the flexible printed circuit board 52 are fixed to the reinforcing plate 60, and the reinforcing plate 60 is fixed to the fixed body 16 by bringing the convex portion 61 of the reinforcing plate 60 into contact with the contact portion 161 of the fixed body 16. Therefore, in the optical unit 1 of this embodiment, the reinforcing plate 60 is accurately and simply positioned with respect to the fixed body 16 by the convex portion 61 of the reinforcing plate 60 and the contact portion 161 of the fixed body 16, and therefore the coil 32 is also accurately and simply positioned with respect to the fixed body 16.

[0037] 6, in the optical unit 1 of this embodiment, the fixed body 16 is provided with a contacted portion 162 (contacted portion 162a) against which the contact portion 62 provided in the region opposite the convex portion 61 of the reinforcing plate 60 contacts when the convex portion 61 contacts the contact portion 161b. 7, the fixed body 16 is provided with a contacted portion 162 (contacted portion 162c) against which the contact portion 62 provided in the region opposite the convex portion 61 of the reinforcing plate 60 contacts when the convex portion 61 contacts the contact portion 161d.

[0038] With the optical unit 1 of the present embodiment being configured as described above, the coil 32 can be positioned particularly accurately with respect to the fixed body 16 by the abutting portion 62 of the reinforcing plate 60 and the abutted portion 162 of the fixed body 16 in addition to the convex portion 61 of the reinforcing plate 60 and the contact portion 161 of the fixed body 16. Furthermore, the abutting portion 62 of the reinforcing plate 60 and the abutted portion 162 of the fixed body 16 abut against each other at a position (position on the -Y direction side of the reinforcing plate 60) opposite to the position (position on the +Y direction side of the reinforcing plate 60) where the convex portion 61 of the reinforcing plate 60 and the contact portion 161 of the fixed body 16 contact each other, thereby preventing the reinforcing plate 60 from shifting in the -Y direction with respect to the fixed body 16 and preventing the convex portion 61 of the reinforcing plate 60 from coming off the contact portion 161 of the fixed body 16.

[0039] In the optical unit 1 of this embodiment, both the contact portion 161 and the abutted portion 162 of the fixed body 16 have a rib-like shape that protrudes outward. The reinforcing plate 60, to which the coil 32 and the flexible printed circuit board 52 are fixed, is inserted from the outside between the contact portion 161 and the abutted portion 162 of the fixed body 16, thereby positioning the reinforcing plate 60 with respect to the fixed body 16. However, the present invention is not limited to this configuration.

[0040] In the optical unit 1 of this embodiment, the contact direction of the protrusion 61 with the contact portion 161 is the optical axis direction (Y-axis direction). In an optical unit configured to support the movable body 14 rotatably with respect to the fixed body 16 with a direction intersecting the optical axis direction as the rotation axis, as in the optical unit 1 of this embodiment, the accuracy of the position of the coil 32 with respect to the magnet 24, particularly in the optical axis direction, is required. Therefore, the optical unit 1 of this embodiment is configured in this way, and the position of the coil 32, particularly with respect to the magnet 24, is accurately positioned in the optical axis direction. However, the present invention is not limited to this configuration, and the contact direction of the protrusion 61 with the contact portion 161 may be a direction intersecting the optical axis direction.

[0041] Here, in the optical unit 1 of this embodiment, the convex portion 61 and the contact portion 161 are configured such that when the reinforcing plate 60 is inserted from the outside into a region between the contact portion 161 and the abutted portion 162 of the fixed body 16, the convex portion 61 is pressed in and comes into contact with the contact portion 161. With this configuration, the optical unit 1 of this embodiment accurately positions and fixes the convex portion 61 of the reinforcing plate 60 and the contact portion 161 of the fixed body 16 easily and without causing any rattling.

[0042] At least one of the reinforcing plate 60 and the flexible printed circuit board 52 may be bonded to the fixed body 16 with an adhesive, for example, as a permanent fixation rather than a temporary fixation. By bonding at least one of the reinforcing plate 60 and the flexible printed circuit board 52 to the fixed body 16 with an adhesive, the fixed body 16 and the reinforcing plate 60 can be firmly fixed, and misalignment of the reinforcing plate 60 with respect to the fixed body 16 can be particularly effectively suppressed. Therefore, misalignment of the coil 32 with respect to the fixed body 16 can be particularly effectively suppressed. There is no particular limitation on the adhesive used here.

[0043] 6 and 7, in the optical unit 1 of this embodiment, the reinforcing plate 60A and the reinforcing plate 60B are each provided with two convex portions 61. In this manner, it is preferable to configure the reinforcing plate 60 to have a plurality of convex portions 61. With such a configuration, the reinforcing plate 60 can be positioned with respect to the fixed body 16 at a plurality of positions, the reinforcing plate 60 can be positioned with respect to the fixed body 16 particularly accurately, and the coil 32 can be positioned with respect to the fixed body 16 particularly accurately.

[0044] A method for manufacturing the optical unit 1 of this embodiment will be described below. In the method for manufacturing the optical unit 1 of this embodiment, a step of providing a convex portion 61 on the reinforcing plate 60 is performed. This step corresponds to a step of manufacturing the reinforcing plate 60 on which the convex portion 61 is formed. Next, a step of fixing the coil 32 and the flexible printed circuit board 52 to the reinforcing plate 60 is performed. Next, a step of forming a fixed body 16 having a contact portion 161 that can be brought into contact with the convex portion 61 and an abutted portion 162 that can be abutted with an abutting portion 62 provided in an area of ​​the reinforcing plate 60 opposite the convex portion 61 is performed. Then, a step of bringing the convex portion 61 of the reinforcing plate 60 into contact with the contact portion 161 while bringing the abutting portion 62 into contact with the abutted portion 162 is performed.

[0045] By carrying out the manufacturing method of the optical unit 1 of this embodiment, the reinforcing plate 60 is accurately positioned with respect to the fixed body 16 by the convex portion 61 of the reinforcing plate 60 and the contact portion 161 of the fixed body 16. Furthermore, in addition to the convex portion 61 of the reinforcing plate 60 and the contact portion 161 of the fixed body 16, the abutting portion 62 of the reinforcing plate 60 and the abutted portion 162 of the fixed body 16 position the reinforcing plate 60 particularly accurately with respect to the fixed body 16, and the coil 32 can be particularly accurately positioned with respect to the fixed body 16. Furthermore, by pressing the convex portion 61 of the reinforcing plate 60 into the contact portion 161 of the fixed body 16, the convex portion 61 of the reinforcing plate 60 and the contact portion 161 of the fixed body 16 can be accurately positioned and fixed simply and without causing any rattling. Furthermore, since there is no need to temporarily fix with a UV adhesive or the like, the coil 32 can be easily positioned with respect to the fixed body 16. However, for example, a step of bonding at least one of the reinforcing plate 60 and the flexible printed circuit board 52 to the fixed body 16 with an adhesive may be further carried out as a permanent fixation rather than a temporary fixation.

[0046] The present invention is not limited to the above-mentioned embodiments, and can be realized in various configurations without departing from the spirit of the present invention. For example, the technical features in the embodiments corresponding to the technical features in each aspect described in the Summary of the Invention column can be appropriately replaced or combined in order to solve some or all of the above-mentioned problems or to achieve some or all of the above-mentioned effects. Furthermore, if a technical feature is not described as essential in this specification, it can be appropriately deleted. [Explanation of symbols]

[0047] 1...optical unit, 12...optical module, 12a...lens, 14...movable body, 14A...movable body main body, 14B...holder, 14a...mounting position, 16...fixed body, 16e...mounting position, 16f...coil arrangement position, 16g...coil arrangement position, 18...driving mechanism, 18A...driving mechanism, 18B...driving mechanism, 20...support mechanism, 21...first leg, 21a...concave surface, 22...second leg, 22a...concave surface, 23...gimbals frame, 24...magnet (driving mechanism), 24A...magnet, 24B...magnet, 32...coil (driving mechanism), 32A...coil, 32B...coil, 33...Hall element (driving mechanism) ), 33A...Hall element, 33B...Hall element, 41...Fixed body side support portion, 41a...Convex curved surface, 42...Movable body side support portion, 42a...Convex curved surface, 50...Imaging element, 51...Flexible printed circuit board, 52...Flexible printed circuit board (driving mechanism), 60...Reinforcing plate (driving mechanism), 60A...Reinforcing plate, 60B...Reinforcing plate, 61...Convex portion, 62...Abutting portion, 100...Smartphone, 101...Cover glass, 161...Contacting portion, 161b...Contacting portion, 161d...Contacting portion, 162...Abutted portion, 162a...Abutted portion, 162c...Abutted portion, D1...Incident direction (optical axis direction), L1...First axis, L2...Second axis

Claims

1. a movable body including an optical module; a fixed body that rotatably supports the movable body around a rotation axis that intersects with an optical axis direction of the optical module; a drive mechanism for rotating the movable body relative to the fixed body, The driving mechanism includes a magnet provided in the movable body, a coil provided in the fixed body, a flexible printed circuit board connected to the coil; and a plurality of reinforcing plates to which the coil and the flexible printed circuit board are fixed, Each of the reinforcing plates has a protrusion protruding in the optical axis direction at both ends in a direction intersecting the optical axis direction, and the fixed body has a contact portion with which the protrusion comes into contact, the fixed body is provided with an abutted portion that is abutted by an abutting portion provided in an area of ​​the reinforcing plate opposite to the protrusion when the protrusion contacts the contact portion, An optical unit characterized in that each of the reinforcing plates is fixed to one surface of the fixed body by the abutting portion abutting the abutted portion and the convex portion contacting the contact portion.

2. 2. The optical unit according to claim 1, The optical unit according to claim 1, wherein the contact direction of the protrusion with respect to the contact portion is the optical axis direction.

3. 3. The optical unit according to claim 1, The optical unit according to claim 1, wherein the protrusion and the contact portion are in contact with each other by being press-fitted into the contact portion.

4. 4. The optical unit according to claim 1, At least one of the reinforcing plate and the flexible printed circuit board is adhered to the fixed body with an adhesive.

5. a movable body having an optical module; a fixed body that rotatably supports the movable body with a rotation axis in a direction intersecting an optical axis direction of the optical module; and a drive mechanism that rotates and moves the movable body relative to the fixed body, The driving mechanism includes a magnet provided in the movable body, a coil provided in the fixed body, A method for manufacturing an optical unit having a flexible printed circuit board connected to the coil and a plurality of reinforcing plates to which the coil and the flexible printed circuit board are fixed, comprising the steps of: providing each of the reinforcing plates with a protrusion protruding in the optical axis direction at both ends in a direction intersecting the optical axis direction; fixing the coil and the flexible printed circuit board to the reinforcing plate; forming the fixed body having a contact portion capable of contacting the protruding portion and an abutted portion capable of abutting an abutting portion provided in an area of ​​the reinforcing plate opposite to the protruding portion; a step of fixing each of the reinforcing plates to one surface of the fixed body by bringing the abutting portion into contact with the abutted portion while bringing the convex portion into contact with the contact portion.

Images