JP2022100780A - Optical unit with shake correction function - Google Patents

Abstract

To provide an optical unit with a shake correction function that rotates a movable body, and in which the spring constant of a flexible printed circuit board connected to the movable body is lowered and the arrangement space of the flexible printed circuit board is downsized.SOLUTION: An optical unit with a shake correction function rotates a movable body 10 around an optical axis L, around an axis X and around axis Y to correct shaking. A flexible printed circuit board 6 connected to the movable body 10 includes a first and a second branch portion and a lead-out part 6C connected to the ends in a +X direction of the first and second branch portions. Each of the first and second branch portions includes a plane part 610 bent in a virtual plane that runs along the XY plane and a zigzag part 620 extending from the plane part 610 in the direction of the axis Y while bending in the direction the optical axis L and meandering in the direction of the axis X. The plane part 610 and the zigzag part 620 overlap as seen from the direction of the optical axis L.SELECTED DRAWING: Figure 4

Description

The present invention relates to an optical unit with a shake correction function that swings a camera module to correct shake.

Some of the optical units mounted on the mobile terminal or mobile body swing or rotate the movable body equipped with the camera module in order to suppress the disturbance of the captured image when the mobile terminal or mobile body moves. Some are equipped with a correction mechanism. Patent Document 1 describes this kind of optical unit with a shake correction function.

The optical unit with a runout correction function of Patent Document 1 can rotate around a movable body including an optical module, a fixed body, and a rotation axis (X-axis, Y-axis) at which the movable body intersects the optical axis with respect to the fixed body. It has a swing support mechanism that supports it. A flexible printed substrate connected to the optical module is pulled out from the movable body.

In the optical unit with the shake correction function, the movable body swings while bending the flexible printed substrate. At this time, the springiness of the flexible printed substrate may hinder the movement of the movable body and increase the load for swinging the movable body. In Patent Document 1, in order to make the flexible printed substrate more flexible, it is folded back so as to overlap when viewed from the optical axis direction.

Japanese Unexamined Patent Publication No. 2020-86367

When the movable body is rotated not only in the pitching direction and the yawing direction (rotational direction around the rotation axis intersecting the optical axis) but also in the rolling direction (rotational direction around the optical axis), the flexible printed substrate is conventionally used in multiple directions. By folding it back into a shape with a small spring constant, it was made easier to bend. However, if it is bent into a complicated shape in order to reduce the spring constant, the space for arranging the flexible printed circuit board becomes large, and there is a problem that the product becomes large.

In view of these points, an object of the present invention is to reduce the spring constant of a flexible printed substrate in an optical unit with a runout correction function that rotates a movable body around a rotation axis that intersects the optical axis and around the optical axis. , And to reduce the space for arranging the flexible printed circuit board.

In order to solve the above problems, the optical unit with a shake correction function of the present invention includes a movable body including a camera module and a rotation support mechanism that rotatably supports the movable body around the optical axis of the camera module. The rotation support mechanism is rotatably supported around the first axis intersecting the optical axis, and the rotation support mechanism is rotatably supported around the optical axis and the second axis intersecting the first axis. It has a gimbal mechanism, a fixed body that supports the movable body via the gimbal mechanism and the rotation support mechanism, and a flexible printed substrate that is drawn out from the movable body in a first direction intersecting the optical axis. The flexible printed substrate is
A plane portion that intersects the optical axis and is arranged in a virtual plane along the first direction, and a meandering shape that bends in the optical axis direction from the end of the plane portion and extends in a direction along the virtual plane while meandering. The flat surface portion includes a curved portion curved in the virtual plane, and the meandering portion is characterized in that it overlaps with the flat surface portion when viewed from the optical axis direction.

According to the present invention, the flexible printed substrate connected to the movable body includes a flat surface portion that intersects the optical axis and is curved in a virtual plane along the first direction. Therefore, when the movable body rotates in the rotation direction (pitching direction) around the second direction that intersects the optical axis and intersects the first direction, the flat surface portion tends to bend. Further, the flexible printed circuit board has a meandering portion that bends in the optical axis direction and extends while meandering from the flat surface portion. Therefore, when the movable body rotates in the rotation direction (yawing direction) around the first direction, the flat surface portion and the meandering portion tend to bend. Then, when the movable body rotates in the rotation direction (rolling direction) around the optical axis, the meandering portion tends to bend. Therefore, since the flexible printed substrate has a small spring constant in any of the pitching direction, the yawing direction, and the rolling direction, it is possible to prevent the rotation of the movable body from being hindered by the flexible printed substrate. Further, since the flat surface portion and the meandering portion overlap each other when viewed from the optical axis direction, the space for arranging the flexible printed circuit board is small.

In the present invention, when the direction intersecting the optical axis and intersecting the first direction is the second direction, the meandering portion bends in the optical axis direction from the end of the flat surface portion in the second direction. It is preferable to extend in the second direction while meandering in the first direction. By doing so, it is possible to form a shape in which the flat surface portion and the meandering portion overlap each other when viewed from the optical axis direction. Further, when the movable body rotates in the pitching direction, not only the flat surface portion but also the meandering portion tends to bend.

In the present invention, it is preferable that the in-plane curved portion is curved in a shape extending in the first direction while meandering in the second direction. In this way, when the movable body rotates in the pitching direction, the flat surface portion tends to bend. When the movable body rotates in the yawing direction, the flat surface portion tends to bend.

In the present invention, the meandering portion includes a first portion of the meandering portion that bends in the optical axis direction from the end of the flat surface portion in the second direction and extends in the first direction, and the first portion of the meandering portion to the first portion. The meandering portion second portion is provided with a meandering portion second portion that is folded back in the opposite direction and extends in a direction along the meandering portion first portion, and the meandering portion first portion is in the optical axis direction with respect to the meandering portion second portion. It is preferably located on the side close to the flat surface portion. By doing so, when the movable body rotates in the yawing direction, the height of the portion of the meandering portion that moves most in the optical axis direction can be lowered in the optical axis direction. Therefore, the height of the arrangement space of the flexible printed circuit board in the optical axis direction can be lowered.

In the present invention, the flexible printed substrate includes a first branch portion and a second branch portion extending from the camera module in the first direction, and each of the first branch portion and the second branch portion is a flat surface portion. And the meandering portion, the first branch portion and the second branch portion are arranged in the second direction, and have a shape symmetrical with respect to the virtual center line extending in the first direction. It is preferable to have. By doing so, the width dimension of the first branch portion and the second branch portion can be reduced, so that the height of the meandering portion in the optical axis direction can be reduced. Therefore, the height of the arrangement space of the flexible printed circuit board in the optical axis direction can be lowered. Further, since the first branch portion and the second branch portion bend in a symmetrical shape, the rotation of the movable body is stable.

In this case, the first branch portion is located on one side of the second branch portion in the two directions, and in the first branch portion, the meandering portion is located at one end of the flat surface portion in the two directions. It is preferable that the first portion is connected, and in the second branch portion, the first portion of the meandering portion is connected to the other end of the flat surface portion in the two directions. In this way, the flat surface portion and the meandering portion are connected at both ends of the arrangement area of the flexible printed circuit board in the second direction, and the final end of the meandering portion is arranged at the center of the arrangement area of the flexible printed circuit board in the second direction. Therefore, since the meandering portion is easily deformed in the optical axis direction as a whole, the meandering portion is likely to bend when the movable body rotates in the yawing direction.

In the present invention, the fixed body includes a first substrate fixing portion that overlaps the flexible printed circuit board in the optical axis direction at a position separated from the camera module on one side in the first direction, and the first substrate fixing portion. The flexible printed circuit board includes a second substrate fixing portion that faces in the optical axis direction, and the flexible printed circuit board has a drawer portion that is fixed to the first substrate fixing portion and extends to the outside of the fixed body, and the drawer portion and the meandering portion. The fixed portion arranged between the portions and fixed to the second substrate fixing portion, and the first substrate fixing portion and the second substrate fixing portion meander in a direction intersecting the optical axis. However, it is preferable to include a flexible portion extending in the optical axis direction. By doing so, the flat surface portion and the meandering portion can be routed at a position separated from the first substrate fixing portion in the optical axis direction. Therefore, when the first substrate fixing portion is provided on the outer case, it is possible to prevent the deformation of the flexible printed circuit board from being hindered by the contact with the outer case.

In the present invention, it is preferable that the second substrate fixing portion is a groove portion recessed in the optical axis direction, and the fixed portion is inserted into the groove portion together with the reinforcing plate. In this way, the work of fixing the fixed portion is easy.

In the present invention, the flexible printed circuit board includes a first flexible substrate and a second flexible substrate that overlaps the first flexible substrate, and the flexible printed circuit board is bent at a substantially right angle. The first flexible substrate and the second flexible substrate are joined to each other at the curved portion, the drawer portion, and the fixed portion formed at the folded position of the meandering portion, and the bent portion and the curved portion are formed. It is preferable that the first flexible substrate and the second flexible substrate are not joined at a portion other than the portion, the drawer portion, and the fixed portion. By doing so, since the first flexible substrate and the second flexible substrate can be bent in a separated state, it is possible to suppress an increase in the spring constant due to stacking two flexible substrates.

In the present invention, it is preferable to provide a shape-retaining member in which the flexible printed substrate is fixed to a bent or curved portion. In this way, the flexible printed substrate can be kept in a flexible shape.

According to the present invention, the flexible printed substrate connected to the movable body has a flat surface portion that intersects the optical axis and is curved in a virtual plane along the first direction, and a flat surface portion that bends in the optical axis direction and meanders. Since it has an extending meandering portion, the spring constant is small in any of the pitching direction, the yawing direction, and the rolling direction. Therefore, it is possible to prevent the rotation of the movable body from being hindered by the flexible printed substrate. Further, since the flat surface portion and the meandering portion overlap each other when viewed from the optical axis direction, the space for arranging the flexible printed circuit board is small.

It is a perspective view of the optical unit with a runout correction function. It is an exploded perspective view of the optical unit with a runout correction function. It is a top view of the optical unit with a runout correction function with a cover removed from the subject side. It is an exploded perspective view of the optical unit with a runout correction function which removed a cover and a base. It is sectional drawing of the optical unit with a runout correction function cut at the position AA of FIG. It is sectional drawing of the optical unit with a runout correction function cut at the BB position of FIG. It is a perspective view of the gimbal frame and the gimbal frame receiving member. It is a perspective view which looked at the movable body and the rotation support mechanism from the subject side. It is an exploded perspective view of a movable body and a rotation support mechanism. It is a perspective view which looked at the movable body and the rotation support mechanism from the anti-subject side. It is a plan view of a camera module and a flexible printed circuit board, and a side view seen from the Y-axis direction. It is a side view seen from the X-axis direction of a camera module and a flexible printed circuit board, and the side view seen from the Y-axis direction of an optical unit with a runout correction function. It is a development view of a flexible printed circuit board. It is a figure which shows the simulation result of the shape of the flexible printed circuit board at the time of performing the runout correction in a pitching direction. It is a figure which shows the simulation result of the shape of the flexible printed circuit board at the time of performing the runout correction in the yawing direction. It is a figure which shows the simulation result of the shape of the flexible printed circuit board when the runout correction in a rolling direction is performed. It is a development view of the flexible printed circuit board of a modification.

Hereinafter, embodiments of an optical unit with a shake correction function to which the present invention is applied will be described with reference to the drawings.

(overall structure)
FIG. 1 is a perspective view of an optical unit with a runout correction function. FIG. 2 is an exploded perspective view of an optical unit with a runout correction function. FIG. 3 is a plan view of the optical unit with a shake correction function from which the cover is removed, as viewed from the subject side. FIG. 4 is an exploded perspective view of an optical unit with a runout correction function from which the cover and the base are removed.

As shown in FIG. 1, the optical unit 1 with a shake correction function includes a movable body 10 including a camera module 2 and a fixed body 11 surrounding the movable body 10 from the outside. The fixed body 11 includes a frame-shaped case 3 that surrounds the movable body 10 from the outer peripheral side, a cover 4 that is fixed to the case 3 from the subject side, and a movable body that is fixed to the case 3 from the anti-subject side. A base 5 for covering is provided. Further, the optical unit 1 with a runout correction function includes a flexible printed substrate 6 drawn out from the movable body 10 and a flexible printed substrate 7 routed along the outer peripheral surface of the case 3.

The optical unit 1 with a shake correction function is used, for example, in an optical device such as a mobile phone with a camera and a drive recorder, and an optical device such as an action camera and a wearable camera mounted on a moving body such as a helmet, a bicycle, and a radiocon helicopter. .. In such an optical device, if the optical device shakes during shooting, the captured image is distorted. The optical unit 1 with a shake correction function corrects the tilt of the camera module 2 based on the acceleration, the angular velocity, the amount of shake, etc. detected by a detection means such as a gyroscope in order to prevent the captured image from tilting.

The camera module 2 includes a lens 2a and an image pickup element 2b arranged on the optical axis L of the lens 2a (see FIGS. 5 and 6). The optical unit 1 with a shake correction function is a camera module around the optical axis L of the lens 2a, around the first axis R1 orthogonal to the optical axis L, and around the second axis R2 orthogonal to the optical axis L and the first axis R1. 2 is rotated to correct the runout.

In the following description, the three axes orthogonal to each other are defined as the X-axis direction, the Y-axis direction, and the Z-axis direction. Further, one side in the X-axis direction is the −X direction, and the other side is the + X direction. One side in the Y-axis direction is -Y direction,
The other side is in the + Y direction. One side in the Z-axis direction is the −Z direction, and the other side is the + Z direction. The Z-axis direction is the optical axis L direction. The −Z direction is the anti-subject side of the camera module 2, and the + Z direction is the subject side of the camera module 2. The first axis R1 and the second axis R2 are tilted by 45 degrees with respect to the X axis and the Y axis around the Z axis (optical axis).

The optical unit 1 with a runout correction function includes a rotation support mechanism 12 that rotatably supports the movable body 10 around the Z axis, and a gimbal mechanism 13. The gimbal mechanism 13 rotatably supports the rotation support mechanism 12 around the first axis R1 and rotatably supports the rotation support mechanism 12 around the second axis R2. The movable body 10 is supported by the fixed body 11 in a state of being rotatable around the first axis R1 and the second axis R2 via the rotation support mechanism 12 and the gimbal mechanism 13.

As shown in FIG. 3, the gimbal mechanism 13 includes a gimbal frame 14, and a first connection mechanism 15 that rotatably connects the gimbal frame 14 and the rotation support mechanism 12 around the first axis R1. The first connection mechanism 15 is provided on both sides of the gimbal frame 14 in the direction of the first axis R1. Further, the gimbal mechanism 13 includes a second connection mechanism 16 that rotatably connects the gimbal frame 14 and the fixed body 11 around the second axis R2. The second connection mechanism 16 is provided on both sides of the gimbal frame 14 in the second axis R2 direction.

Further, the optical unit 1 with a runout correction function includes a runout correction magnetic drive mechanism 20 that rotates the movable body 10 around the first axis R1 and around the second axis R2. As shown in FIG. 3, the runout correction magnetic drive mechanism 20 includes a first runout correction magnetic drive mechanism 21 that generates a driving force around the X axis with respect to the movable body 10, and a Y axis with respect to the movable body 10. It is provided with a second runout correction magnetic drive mechanism 22 that generates a rotational driving force. The first runout correction magnetic drive mechanism 21 and the second runout correction magnetic drive mechanism 22 are arranged in the circumferential direction around the Z axis. In this example, the first runout correction magnetic drive mechanism 21 is arranged in the −X direction of the camera module 2. The second runout correction magnetic drive mechanism 22 is arranged in the −Y direction of the camera module 2.

The movable body 10 rotates around the X axis and around the Y axis by combining the rotation around the first axis R1 and the rotation around the second axis R2. As a result, the optical unit 1 with a runout correction function performs pitching correction around the X axis and yawing correction around the Y axis.

Further, the optical unit 1 with a runout correction function has a rolling correction magnetic drive mechanism 23 that rotates the movable body 10 around the Z axis. As shown in FIG. 3, the first runout correction magnetic drive mechanism 21, the second runout correction magnetic drive mechanism 22, and the rolling correction magnetic drive mechanism 23 are arranged in the circumferential direction around the Z axis. In this example, the rolling correction magnetic drive mechanism 23 is arranged in the + Y direction of the camera module 2. The rolling correction magnetic drive mechanism 23 is located on the opposite side of the second runout correction magnetic drive mechanism 22 with the optical axis L interposed therebetween.

(Fixed point)
In the fixed body 11, the cover 4 and the base 5 are plate-shaped and made of non-magnetic metal. A hook 8 bent at a substantially right angle is formed on the outer peripheral edge of the cover 4 and the base 5 on the side of the case 3. The case 3 is made of resin. The hook 8 is locked to a protrusion 9 provided on the outer peripheral surface of the case 3. The gimbal mechanism 13 and the camera module 2 are arranged inside the opening 4a of the cover 4 and project from the cover 4 in the + Z direction.

The case 3 includes a rectangular frame portion 18 that surrounds the movable body 10 and the rotation support mechanism 12 from the outer peripheral side, and a rectangular wiring accommodating portion 19 that is arranged in the + X direction of the frame portion 18. The frame portion 18 includes a first side plate portion 181 and a second side plate portion 182 facing in the X direction, and a third side plate portion 183 and a fourth side plate portion 184 facing in the Y direction. The first side plate portion 181 is located in the −X direction of the second side plate portion 182. The third side plate portion 183 is located in the −Y direction of the fourth side plate portion 184.

As shown in FIG. 4, the frame portion 18 includes a notch portion 185 having a notched end edge in the −Z direction of the second side plate portion 182. The flexible printed substrate 6 connected to the image pickup device 2b is pulled out from the end portion of the movable body 10 in the −Z direction in the + X direction. The flexible printed substrate 6 is drawn out in the + X direction of the frame portion 18 through the notch portion 185 and is accommodated in the wiring accommodating portion 19.

The wiring accommodating portion 19 includes a fifth side plate portion 191 and a sixth side plate portion 192 facing each other in the Y-axis direction, and a seventh side plate portion 193 facing the second side plate portion 182 of the frame portion 18 in the X-axis direction. The wiring accommodating portion 19 includes a notch portion 194 in which the end edge of the seventh side plate portion 193 in the −Z direction is cut out. The flexible printed substrate 6 is routed in a shape that is folded back a plurality of times inside the wiring accommodating portion 19, and is pulled out to the outside of the wiring accommodating portion 19 through the notch portion 194.

As shown in FIG. 4, the third side plate portion 183 of the case 3 is provided with a first coil fixing hole 183a. The first coil 21C is fixed in the first coil fixing hole 183a. A second coil fixing hole 181a is provided in the first side plate portion 181 of the case 3. The second coil 22C is fixed in the second coil fixing hole 181a. The first coil 21C and the second coil 22C are oval air-core coils long in the circumferential direction. Further, the fourth side plate portion 184 is provided with a third coil fixing hole 184a. A third coil 23C is arranged in the third coil fixing hole 184a. The third coil 23C is an air-core coil long in the Z-axis direction.

As shown in FIG. 3, the first coil 21C fixed to the third side plate portion 183 and the first magnet 21M fixed to the side surface in the −Y direction of the movable body 10 face each other in the Y direction, and the first The magnetic drive mechanism 21 for runout correction is configured. Further, the second coil 22C fixed to the first side plate portion 181 and the second magnet 22M fixed to the side surface in the −X direction of the movable body 10 face each other in the X direction, and are magnetically driven for the second runout correction. It constitutes a mechanism 22. The third coil 23C fixed to the fourth side plate portion 184 and the third magnet 23M fixed to the side surface of the movable body 10 in the + Y direction face each other in the Y direction, and the rolling correction magnetic drive mechanism 23 is provided. Configure.

The first coil 21C, the second coil 22C, and the third coil 23C are electrically connected to the flexible printed circuit board 7. The flexible printed substrate 7 is fixed to the outer peripheral surface of the frame portion 18. In this embodiment, the flexible printed substrate 7 is routed in this order along the outer peripheral surfaces of the fourth side plate portion 184, the first side plate portion 181 and the third side plate portion 183 in the frame portion 18.

The magnetic plate 17 (see FIGS. 1 and 2) is fixed to the flexible printed circuit board 7 at two positions, one at a position overlapping the center of the first coil 21C and the other at a position overlapping the center of the second coil 22C. The magnetic plate 17 overlapping the first coil 21C and the first magnet 21M form a magnetic spring for returning the movable body 10 to a reference angle position in the rotation direction around the X axis. Further, the magnetic plate 17 overlapping the second coil 22C and the second magnet 22M form a magnetic spring for returning the movable body 10 to a reference angle position in the rotation direction around the Y axis. Further, a swing position sensor and a rotation position sensor (not shown) are arranged on the flexible printed substrate 7. The optical unit 1 with a runout correction function acquires the angular positions of the movable body 10 around the X axis, the Y axis, and the Z axis in the rotation direction based on the outputs of these sensors.

(Gimbal mechanism)
5 and 6 are sectional views of an optical unit with a runout correction function. 5 is a cross-sectional view cut at the AA position of FIG. 2, and FIG. 6 is a cross-sectional view cut at the BB position of FIG. FIG. 7 is an exploded perspective view of the gimbal frame 14, the first gimbal frame receiving member 151, and the second gimbal frame receiving member 162.

As shown in FIGS. 3 and 6, the gimbal frame 14 and the fixed body 11 are rotatably connected around the second axis R2 at diagonal positions of the frame portion 18 in the second axis R2 direction, respectively. A connection mechanism 16 is provided. The second gimbal frame receiving member 162 is fixed to each of the pair of recesses 161 provided at diagonal positions in the second axis R2 direction of the frame portion 18. As shown in FIGS. 6 and 7, the second gimbal frame receiving member 162 includes a sphere 163 and a second thrust receiving member 164 to which the sphere 163 is fixed. As shown in FIG. 6, by fixing the second gimbal frame receiving member 162 to the recess 161 the sphere 163 is supported by the fixed body 11 at a position on the second axis R2. When assembling the gimbal mechanism 13, the gimbal frame 14 is inserted into the inner peripheral side of the second gimbal frame receiving member 162 and brought into point contact with the sphere 163 on the second axis R2. As a result, the second connection mechanism 16 is configured.

As shown in FIGS. 3 and 5, the gimbal frame 14 and the rotation support mechanism 12 are rotatably connected around the first axis R1 on both sides of the movable body 10 in the direction of the first axis R1, respectively. 1 Connection mechanism 15 is provided. The first connection mechanism 15 includes a first gimbal frame receiving member 151 fixed to the rotation support mechanism 12 on both sides of the movable body 10 in the direction of the first axis R1. As shown in FIGS. 5 and 7, the first gimbal frame receiving member 151 includes a sphere 152 and a first thrust receiving member 153 to which the sphere 152 is fixed. By fixing the first thrust receiving member 153 to the rotation support mechanism 12, the sphere 152 is supported by the rotation support mechanism 12 at a position on the first axis R1. When assembling the gimbal mechanism 13, the gimbal frame 14 is inserted into the inner peripheral side of the first gimbal frame receiving member 151 and brought into point contact with the sphere 152 on the first axis R1. As a result, the first connection mechanism 15 is configured.

The gimbal frame 14 is made of a metal leaf spring. As shown in FIGS. 5, 6 and 7, the gimbal frame 14 has a gimbal frame main body 140 located in the + Z direction of the movable body 10 and both sides of the gimbal frame main body 140 in the direction of the first axis R1. A pair of first-axis side extension portions 141 protruding in the -Z direction, and a pair of second-axis side extension portions protruding in the -Z direction from the gimbal frame main body 140 toward both sides in the second axis R2 direction. A unit 142 is provided. The gimbal frame 14 includes an opening 143 that penetrates the center of the gimbal frame main body 140 in the Z-axis direction.

As shown in FIG. 7, each of the pair of first axis side extension portions 141 is recessed on the first axis R1 in the direction of the first axis R1 toward the inner peripheral side toward the movable body 10. A shaft side concave curved surface 144 is provided. Further, the first axis side extending portion 141 includes a pair of notches 145 in which both edges in the circumferential direction are cut out in the + Z direction of the first axis side concave curved surface 144. Further, the first axis side extending portion 141 includes a protruding portion 146 that protrudes in the −Z direction of the first axis side concave curved surface 144 in the direction toward the outer peripheral side. Next, each of the pair of second axis side extension portions 142 is recessed on the second axis R2 in the direction of the second axis R2 toward the inner peripheral side toward the movable body 10, and is a concave curved surface on the second axis side. 147 is provided. Further, the second axis side extending portion 142 includes a pair of notches 148 having notches on both sides in the circumferential direction in the + Z direction of the second axis side concave curved surface 147.

As shown in FIG. 7, the first thrust receiving member 153 includes a plate portion 154 extending in the Z-axis direction, a foot portion 155 bent from the end portion of the plate portion 154 in the −Z direction toward the movable body 10, and a plate portion. It is provided with a pair of arm portions 156 bent from the side edges on both sides in the circumferential direction of 154 toward the movable body 10. A sphere 152 is fixed to the plate portion 154 by welding. Further, the first thrust receiving member 153 includes a hole portion 157 that penetrates the center of the corner portion connecting the plate portion 154 and the foot portion 155. The tips of the foot portion 155 and the pair of arm portions 156 are fixed to the rotation support mechanism 12 by welding. As will be described later, the rotation support mechanism 12 includes a pair of second extending portions 64 extending in the −Z direction on both sides of the movable body 10 in the first axis R1 direction, and the first gimbal frame receiving member 151 includes a first gimbal frame receiving member 151. The tips of the foot portion 155 and the pair of arm portions 156 are fixed to the tips of the second extension portion 64 by welding.

When assembling the gimbal mechanism 13, the first shaft side extension portion 141 of the gimbal frame 14 is bent toward the inner peripheral side and inserted into the inner peripheral side of the first gimbal frame receiving member 151. As a result, the first axis side extension portion 141 is urged toward the outer peripheral side, so that the first axis side concave curved surface 144 of each first axis side extension portion 141 and the sphere 152 of the first gimbal frame receiving member 151 Can maintain contact. Further, the notch 145 of the first shaft side extending portion 141 is arranged between the pair of arm portions 156, and the protruding portion 146 is arranged in the hole portion 157 (see FIG. 5). This prevents the gimbal frame 14 from coming off the first gimbal frame receiving member 151 in the + Z direction.

The second thrust receiving member 164 includes a plate portion 165 extending in the Z-axis direction, a foot portion 166 bent from the −Z end of the plate portion 165 toward the movable body 10 side, and both sides of the plate portion 165 in the circumferential direction. A pair of arm portions 167 bent from the side edge to the movable body 10 side are provided. A sphere 163 is fixed to the plate portion 165 by welding. Further, a foot bending portion 168 that is bent in the + Z direction from both ends of the foot portion 166 in the circumferential direction is provided. When the second thrust receiving member 164 is fixed to the recess 161 of the case 3, the second thrust receiving member 164 is press-fitted into the recess 161 while bending the foot bending portion 168 toward the center in the circumferential direction.

When assembling the gimbal mechanism 13, the second shaft side extension portion 142 of the gimbal frame 14 is bent toward the inner peripheral side and inserted into the inner peripheral side of the second gimbal frame receiving member 162. As a result, the second axis side extension portion 142 is urged toward the outer peripheral side, so that the second axis side concave curved surface 147 of each second axis side extension portion 142 and the sphere 163 of the second gimbal frame receiving member 162 Can maintain contact. Further, the notch 145 of the second axis side extension portion 142 is arranged between the pair of arm portions 156. This prevents the gimbal frame 14 from coming off the second gimbal frame receiving member 162 in the + Z direction.

(Movable body)
FIG. 8 is a perspective view of the movable body 10 and the rotation support mechanism 12 as viewed from the subject side. FIG. 9 is an exploded perspective view of the movable body 10 and the rotation support mechanism 12. FIG. 10 is a perspective view of the movable body 10 and the rotation support mechanism 12 as viewed from the anti-subject side. As shown in FIGS. 8 and 9, the movable body 10 includes a camera module 2, a frame-shaped holder 24 for holding the camera module 2, and a first member 25 fixed to the holder 24. The holder 24 is made of resin, and the first member 25 is made of metal.

As shown in FIGS. 8 and 9, the first member 25 has a first annular plate portion 26 that surrounds the optical axis L and overlaps the outer peripheral portion of the camera module 2 from the + Z direction, and from the first annular plate portion 26 to the outer peripheral side. A first extending portion 27 that is bent in the −Z direction and connected to the holder 24 on the outer peripheral side of the projecting camera module 2 is provided. In this embodiment, the rotation support mechanism 12 is arranged in the gap between the first annular plate portion 26 and the camera module 2 in the Z-axis direction (optical axis L direction).

The first extending portion 27 is arranged at three positions of the first annular plate portion 26 in the −X direction, the + Y direction, and the −Y direction. The angle position where the first extension portion 27 is arranged is the angle at which the first magnet 21M and the second magnet 22M of the runout correction magnetic drive mechanism 20 and the third magnet 23M of the rolling correction magnetic drive mechanism 23 are arranged. The position. The first extension portion 27 is a first extension portion 28 extending from the first annular plate portion 26 toward the outer peripheral side and bending in the −Z direction, and a first extension portion 28 in the −Z direction. It is provided with a rectangular first extending portion second portion 29 which is connected to the tip of the first extending portion and has a width wider in the circumferential direction than the first extending portion first portion 28. The second portion 29 of the first extension portion is fixed to the holder 24.

The first member 25 includes an annular first rail member 50 that surrounds the optical axis L, and a sheet metal first plate-shaped member 51 to which the first rail member 50 is joined. The first plate-shaped member 51 is made of magnetic metal. The first rail member 50 is made of a non-magnetic metal. The first rail member 50 may be made of magnetic metal. The first rail member 50 is fitted inside a circular first through hole 52 provided in the first plate-shaped member 51, and is fixed to the first plate-shaped member 51 by welding. More specifically, the first rail member 50 and the first plate-shaped member 51 are welded so that the opening edge of the first through hole 52 and the outer peripheral edge of the first rail member 50 are connected in the radial direction. There is. Welding is performed at a plurality of locations at equal intervals around the Z axis.

As shown in FIGS. 5 and 6, a first annular groove 53 is provided on the end face of the first rail member 50 in the −Z direction. In this embodiment, the first annular groove 53 is formed by cutting. The first rail member 50 may be a member in which the first annular groove 53 is formed by a method other than cutting. For example, the first annular groove 53 may be formed by cold forging or press working. The inner peripheral portion of the first annular plate portion 26 is composed of the first rail member 50, and the outer peripheral portion is composed of the first plate-shaped member 51. Therefore, the first annular plate portion 26 includes a first annular groove 53 that surrounds the optical axis L.

As shown in FIG. 9, the camera module 2 includes a camera module main body 30A and a camera module cylindrical portion 30B projecting from the center of the camera module main body 30A in the + Z direction. The lens 2a (see FIGS. 5 and 6) is housed in the camera module cylindrical portion 30B. The holder 24 surrounds the camera module main body 30A from the outer peripheral side. The camera module cylindrical portion 30B protrudes in the + Z direction from the circular hole 26a provided in the center of the first annular plate portion 26, and is arranged in the opening 143 of the gimbal frame 14.

The outline shape of the camera module main body 30A and the holder 24 when viewed from the + Z direction is substantially octagonal. The holder 24 includes a first side wall 31 and a second side wall 32 extending parallel to the Y direction, and a third side wall 33 and a fourth side wall 34 extending parallel to the X direction. The first side wall 31 is located in the −X direction of the second side wall 32. The third side wall 33 is located in the −Y direction of the fourth side wall 34. A notch 32a is provided at the end edge of the second side wall 32 in the −Z direction. As shown in FIG. 4, the flexible printed circuit board 6 connected to the image pickup device 2b is pulled out from the end portion of the camera module 2 in the −Z direction through the notch portion 32a in the + X direction of the movable body 10. ..

Further, the holder 24 includes a fifth side wall 35 and a sixth side wall 36 located diagonally in the first axis R1 direction, and a seventh side wall 37 and an eighth side wall 38 located diagonally in the second axis R2 direction. .. The fifth side wall 35 is located in the −X direction of the sixth side wall 36. The seventh side wall 37 is located in the −X direction of the eighth side wall 38. A stopper protrusion 39 projecting in the + Z direction is formed on the end faces of the fifth side wall 35, the sixth side wall 36, the seventh side wall 37, and the eighth side wall 38 in the + Z direction.

The first magnet 21M is fixed to the first side wall 31 of the holder 24, and the second magnet 22M is fixed to the third side wall 33. The first magnet 21M and the second magnet 22M are magnetized in two poles in the Z-axis direction. The polarization lines of the first magnet 21M and the second magnet 22M extend in the circumferential direction. The first magnet 21M and the second magnet 22M are arranged so that the same poles are directed in the Z-axis direction. A third magnet 23M is fixed to the fourth side wall 34 of the holder 24. The third magnet 23M is extremely magnetized in the circumferential direction. The first magnet 21M, the second magnet 22M, and the third magnet 23M are arranged in the circumferential direction around the optical axis L. The third magnet 23M is arranged on the side opposite to the second magnet 22M with the optical axis L interposed therebetween.

As shown in FIG. 9, recesses 40 recessed on the inner peripheral side are formed on the outer peripheral surfaces of the first side wall 31, the third side wall 33, and the fourth side wall 34 of the holder 24, and the first magnet 21M, the first magnet 21M, is formed. The two magnets 22M and the third magnet 23M are housed in the recess 40. The first magnet 21M, the second magnet 22M, and the third magnet 23M are positioned in the Z-axis direction by abutting the bottom surface 41 provided at the end of each recess 40 in the −Z direction from the + Z direction.

Grooves 42 are formed on the inner surfaces of the three recesses 40 on both sides in the circumferential direction. As shown in FIGS. 3 and 8, the second portion 29 of the first extension portion 29 provided at the tip of the first extension portion 27 in the −Z direction is inserted into each recess 40. Both ends of the first extending portion 2nd portion 29 in the circumferential direction are inserted into the groove portion 42, and are fixed to each recess 40 by an adhesive. The second portion 29 of the first extension portion is inserted inside the first magnet 21M, the second magnet 22M, and the third magnet 23M in the radial direction. Since the first extending portion second portion 29 is made of magnetic metal, it functions as a yoke for each magnet.

(Rotation support mechanism)
The rotation support mechanism 12 is a second member having a first annular groove 53 provided on the movable body 10 in a state coaxial with the optical axis L and a second annular groove 54 facing the first annular groove 53 in the Z-axis direction. It is equipped with 55. Further, the rotation support mechanism 12 rolls a plurality of rolling elements 56 that are inserted into the first annular groove 53 and the second annular groove 54 and roll between the movable body 10 and the second member 55, and the rolling body 56. It is provided with an annular retainer 57 that is movably held. The retainer 57 includes a plurality of spherical holding holes 58 that rotatably hold each of the plurality of rolling elements 56. Further, the rotation support mechanism 12 includes a pressurization mechanism 59 that applies a force that brings the first annular groove 53 and the second annular groove 54 close to each other in the Z-axis direction.

As shown in FIG. 9, the second member 55 includes an annular second rail member 60 surrounding the optical axis L and a sheet metal second plate-shaped member 61 to which the second rail member 60 is joined. The second rail member 60 is fitted inside a circular second through hole 62 provided in the second plate-shaped member 61, and is fixed to the second plate-shaped member 61 by welding. More specifically, in the second rail member 60 and the second plate-shaped member 61, the opening edge of the second through hole 62 and the outer peripheral edge of the second rail member 60 are welded from the −Z direction. Welding is performed at a plurality of locations at equal intervals around the Z axis.

The second annular groove 54 is provided on the end face of the second rail member 60 in the + Z direction. In this embodiment, the second annular groove 54 is formed by cutting. The second rail member 60 and the second plate-shaped member 61 are both made of non-magnetic metal. The second rail member 60 may be made of magnetic metal. The second rail member 60 and the first rail member 50 are the same member. As shown in FIGS. 5 and 6, the second rail member 60 and the first rail member 50 are arranged coaxially, and the first annular groove 53 and the second annular groove 54 face each other in the Z-axis direction. ing.

The rolling element 56 is made of metal or ceramics. The retainer 57 is made of resin. The retainer 57 is located between the first rail member 50 and the second rail member 60 in the Z-axis direction. In this embodiment, the rolling element 56 is a sphere. The rotation support mechanism 12 includes six rolling elements 56, and the retainer 57 includes six spherical holding holes 58 provided at equal intervals. The rolling element 56 is rotatably held inside the sphere holding hole 58 and projects from the retainer 57 in the −Z direction and the + Z direction.

The second member 55 includes a second annular plate portion 63 that surrounds the optical axis L, a pair of second extending portions 64 that project from the second annular plate portion 63 on both sides in the direction of the first axis R1, and a second annular plate. A pair of second protruding plate portions 65 projecting from the portions 63 on both sides in the direction of the second axis R2 is provided. The inner peripheral portion of the second annular plate portion 63 is composed of the second rail member 60, and the outer peripheral portion is composed of the second plate-shaped member 61. As shown in FIGS. 5, 6 and 8, the second annular plate portion 63 and the retainer 57 are located in the gap between the first annular plate portion 26 of the first member 25 and the camera module main body portion 30A in the optical axis L direction. Be placed.

The pair of second extending portions 64 each have a second extending portion 1st portion 66 extending from the second annular plate portion 63 in the first axis R1 direction and a second extending portion 66 extending from the outer peripheral side of the movable body 10 in the Z axis direction. 2 The extension portion 2nd portion 67 is provided. As shown in FIG. 5, the second extension portion 67 faces the movable body 10 with a slight gap on the outside in the direction of the first axis R1 of the movable body 10. As shown in FIGS. 5 and 8, the first gimbal frame receiving member 151 is fixed to the surface of each second extending portion second portion 67 on the surface opposite to the movable body 10. The first gimbal frame receiving member 151 is fixed to the second extension portion 67 by welding the tips of the pair of arm portions 156 and the foot portion 155 to the second extension portion second portion 67. ..

As shown in FIGS. 8 and 9, the pressurization mechanism 59 includes a pressurization magnet 68 arranged at four locations around the optical axis L of the second member 55 and four locations around the optical axis L of the first member 25. The first protruding plate portion 69 provided in the above is provided. The pressurizing magnet 68 is fixed to four points, a pair of second extending portions 1st portion 66 and a pair of second protruding plate portions 65. Each pressurizing magnet 68 is magnetized in two poles in the circumferential direction. The first protruding plate portion 69 projects from the first annular plate portion 26 in four directions, both sides in the direction of the first axis R1 and both sides in the direction of the second axis R2. Each of the four pressurizing magnets 68 arranged on the second member 55 together with the four first projecting plate portions 69 provided on the movable body 10 when the movable body 10 and the rotation support mechanism 12 are assembled. It overlaps in the L direction of the optical axis.

The first protruding plate portion 69 is made of a magnetic metal. Therefore, due to the magnetic attraction of the pressurizing magnet 68, the first protruding plate portion 69 that overlaps each pressurizing magnet 68 in the optical axis L direction is attracted to the pressurizing magnet 68 side. As a result, the pressurization mechanism 59 applies a force that causes the first annular groove 53 and the second annular groove 54 to approach each other in the Z-axis direction at four locations at equal angular intervals around the optical axis L. The movable body 10 is attracted to the second member 55 by the magnetic attraction force of the pressurization mechanism 59, and is supported by the second member 55 in a state of being rotatable around the Z axis.

The pair of second extending portions 64 and the pair of second protruding plate portions 65 provided on the second member 55 face the stopper convex portions 39 provided on the holder 24 in the optical axis L direction. As shown in FIGS. 5 and 6, the tip of the stopper convex portion 39 in the + Z direction protrudes in the + Z direction from the end face of the camera module main body 30A in the + Z direction. Therefore, the movement range of the second member 55 in the −Z direction is restricted by the stopper protrusion 39.

As shown in FIG. 8, the height of the first side wall 31, the second side wall 32, the third side wall 33, and the fourth side wall 34 in the Z-axis direction is lower than that of the camera module main body portion 30A. As shown in FIG. 10, the holder 24 includes a convex portion 43 protruding in the −Z direction from the end faces of the first side wall 31, the third side wall 33, and the fourth side wall 34 in the −Z direction. The convex portion 43 is located at the center of the first side wall 31, the third side wall 33, and the fourth side wall 34 in the circumferential direction. The convex portion 43 projects in the −Z direction from the bottom surface (the surface facing the −Z direction) of the camera module main body 30A. Therefore, when the movable body 10 moves significantly in the Z-axis direction as a whole due to a drop impact or the like, the convex portion 43 collides with the fixed body 11 before the camera module main body portion 30A.

The convex portion 43 is among the eight side walls arranged in the circumferential direction surrounding the camera module main body 30A, among the side walls arranged at an angle position between the first axis R1 direction and the second axis R2 direction. It is formed at three locations (first side wall 31, third side wall 33, and fourth side wall 34). Further, the convex portion 43 is formed at the center of the first side wall 31, the third side wall 33, and the fourth side wall 34 in the circumferential direction. Therefore, in the holder 24, the convex portion 43 is formed at a position where the distance from the optical axis L is the smallest and the amount of movement in the Z-axis direction is the smallest when the movable body 10 swings.

As shown in FIG. 10, the side surfaces 43a on both sides of the convex portion 43 in the circumferential direction are tapered surfaces inclined in the −Z direction toward the center of the circumferential direction. Therefore, the convex portion 43 has a shape having a large width in the circumferential direction and high strength, but has a shape in which the protrusion amount is smaller as the movement amount in the Z-axis direction is larger when the movable body 10 swings. Therefore, it is not necessary to increase the gap between the movable body 10 and the fixed body 11 in the optical axis L direction in order to prevent the convex portion 43 from colliding with the fixed body 11 when the movable body 10 is swung. ..

As shown in FIG. 10, the fifth side wall 35, the sixth side wall 36, the seventh side wall 37, and the eighth side wall 38 of the holder 24 have end faces in the −Z direction in the + Z direction from the bottom surface of the camera module main body 30A. To position. Therefore, the outer shape of the movable body 10 has a shape in which the diagonal portion in the R1 direction of the first axis and the end portion in the −Z direction of the diagonal portion in the second axis R2 direction are recessed in the + Z direction. Since the diagonal portion in the first axis R1 direction and the diagonal portion in the second axis R2 direction of the movable body 10 are the portions farthest from the optical axis L, this portion is cut out in the Z axis direction. As a result, the movable space of the movable body 10 in the Z-axis direction when the movable body 10 swings around the first axis R1 and the second axis R2 can be reduced.

The rotation support mechanism 12 includes a rotation regulation mechanism 70 that regulates the rotation range of the movable body 10 around the optical axis L. As shown in FIG. 8, the rotation regulation mechanism 70 includes a first rotation regulation unit 71 provided on the first member 25 and a second rotation regulation unit 72 provided on the second member 55. The first rotation restricting portion 71 projects from the first annular plate portion 26 toward the outer peripheral side and bends in the −Z direction. The tip of the first rotation restricting portion 71 in the −Z direction is fixed to the second side wall 32 of the holder 24.

The second rotation restricting portion 72 projects from the second annular plate portion 63 toward the outer peripheral side. A notch 73 having a width larger in the circumferential direction than the second rotation restricting portion 72 is provided in the center of the first rotation regulating portion 71 in the circumferential direction, and the second rotation regulating portion 72 is arranged in the notch portion 73. Will be done. Therefore, the first rotation restricting unit 71 surrounds both sides of the second rotation restricting unit 72 in the circumferential direction. When the first rotation restricting unit 71 and the second rotation restricting unit 72 collide with each other, the rotation range of the movable body 10 with respect to the second member 55 around the optical axis L is restricted.

(Flexible printed board)
11 (a) is a plan view of the camera module 2 and the flexible printed board 6, and FIG. 11 (b) is a side view of the camera module 2 and the flexible printed board 6 as viewed from the Y-axis direction. FIG. 12A is a side view of the camera module 2 and the flexible printed circuit board 6 as viewed from the X-axis direction and a partially enlarged view thereof, and FIG. 12B is a Y-axis direction of the optical unit 1 with a shake correction function. It is a side view seen from. In the following description, the first direction coincides with the X-axis direction, one side of the first direction is the + X direction, and the other side of the first direction is the −X direction. Further, the second direction coincides with the Y-axis direction, one side of the second direction is the + Y direction, and the other side of the second direction is the −Y direction.

As shown in FIGS. 4 and 11A, the flexible printed substrate 6 has a first branch portion 6A and a second branch portion 6B arranged in the Y-axis direction (second direction), and a first branch portion 6A and a second branch portion 6A. A drawer portion 6C connected to an end portion of the branch portion 6B in the + X direction (one side in the first direction) is provided. As shown in FIG. 3, the first branch portion 6A and the second branch portion 6B are housed in the wiring accommodating portion 19, and the lead-out portion 6C is a notch portion 194 provided in the wiring accommodating portion 19 (FIG. 4). See) and the base 5 is pulled out in the + X direction. As shown in FIGS. 11 and 12, a reinforcing plate 6D is fixed to the end portion of the drawer portion 6C in the −X direction, and the drawer portion 6C is fixed to the base 5 via the reinforcing plate 6D.

The fixed body 11 includes a first substrate fixing portion 81 to which the drawing portion 6C is fixed, and a second substrate fixing portion 82 facing the first substrate fixing portion 81 in the Z-axis direction (optical axis direction). The first substrate fixing portion 81 is a central portion in the Y-axis direction at the end portion of the base 5 in the + X direction. The second substrate fixing portion 82 is a groove portion recessed in the + Z direction, and is formed on the inner surface of the notch portion 194 in the + Z direction. At the end of the base 5 in the + X direction, side plates 83 for closing the notches 194 on both sides of the drawer portion 6C in the Y-axis direction are provided.

The first branch portion 6A and the second branch portion 6B each include a fixed portion 6E fixed to the second substrate fixing portion 82 at a position separated from the drawer portion 6C in the + Z direction. Each fixed part 6
E extends in the direction along the XZ plane. The fixed portion 6E of the first branch portion 6A and the fixed portion 6E of the second branch portion 6B are joined with a reinforcing plate 6F fixed to each fixed portion 6E sandwiched between them, and the second substrate is joined together with the reinforcing plate 6F. It is inserted into the fixing portion 82.

As shown in FIG. 11A, the first branch portion 6A is located in the + Y direction (one side of the second direction) of the second branch portion 6B. The first branch portion 6A and the second branch portion 6B have a shape symmetrical with respect to the Y-axis direction (second direction) with respect to the virtual center line C extending in the X-axis direction (first direction). The first branch portion 6A and the second branch portion 6B include a flat surface portion 610 and a meandering portion 620, respectively. Further, the first branch portion 6A and the second branch portion 6B are a fixed portion 6E provided at the end of the meandering portion 620 in the + X direction, and a flexible portion connecting the fixed portion 6E and the drawer portion 6C, respectively. 630 is provided.

The plane portion 610 is arranged in a virtual plane P parallel to the XY plane. The virtual plane P is a plane orthogonal to the optical axis L and along the X-axis direction (first direction). The flat surface portion 610 includes a straight line portion 611 drawn out from the bottom portion of the camera module 2 in the + X direction, and an in-plane curved portion 612 curved in the virtual plane P. The in-plane curved portion 612 is curved in a shape extending in the X-axis direction (first direction) while meandering in the Y-axis direction (second direction). At the connection point between the end of the flat surface portion 610 in the Y-axis direction and the meandering portion 620, a bent portion 613 in which the flexible substrate is bent at a substantially right angle is provided.

The meandering portion 620 overlaps with the flat surface portion 610 when viewed from the Z-axis direction. The meandering portion 620 extends in the Y-axis direction (second direction) while meandering in the X-axis direction (first direction). More specifically, the meandering portion 620 is meandering with the meandering portion 1st portion 621 that bends in the + Z direction and extends in the −X direction from the end in the + X direction of the flat surface portion 610 in the + X direction. A meandering part 2nd part 622 that is folded back from the first part 621 and extends in the + X direction, and a meandering part 3rd part 623 that is folded back from the meandering part 2nd part 622 and extends in the -X direction. It is provided with a meandering portion 4th portion 624 that is folded back in the opposite direction from the meandering portion 3rd portion 623 and extends in the + X direction. A curved portion 625 curved in a semicircular shape is formed at each of the three folded positions.

In the first branch portion 6A, the meandering portion 1st portion 621 is connected to the end of the flat surface portion 610 in the + Y direction (one side in the second direction), and the meandering portion 4th portion 624 is the end in the −Y direction of the meandering portion 620. Located in. On the other hand, in the second branch portion 6B, the meandering portion first portion 621 is connected to the end of the flat surface portion 610 in the −Y direction (the other side in the second direction), and the meandering portion fourth portion 624 is in the + Y direction of the meandering portion 620. Located on the edge of. Therefore, in the flexible printed substrate 6, the connection points between the flat surface portion 610 and the meandering portion 620 are arranged at both ends in the Y-axis direction as a whole, and the meandering which is the final end of each meandering portion 620 is located in the center in the Y-axis direction. Part 4 Part 624 is arranged.

The bending portion 630 extends in the −Z direction from the fixed portion 6E provided at the end of the fourth portion 624 of each meandering portion in the + X direction, bends once in the Y-axis direction, and bends once in the Y-axis direction in the Y-axis direction of the drawing portion 6C. Connected to the edge of. The bending portion 630 provided in the first branch portion 6A is bent in the + Y direction and is connected to the + Y direction edge of the drawing portion 6C. The bending portion 630 provided in the second branch portion 6B is bent in the −Y direction and is connected to the edge of the drawing portion 6C in the −Y direction.

11 (b) As shown in FIG. 12 (a), in each meandering portion 620, the meandering portion first portion 621 is in the −Z direction (that is, the side closer to the flat surface portion 610) than the meandering portion second portion 622. Located in. Each meandering portion 620 is provided with a step portion 626 in the Z-axis direction at the end in the −X direction of the second portion 622 of the meandering portion, and the positions in the Z-axis direction are different on both sides of the step portion 626. More specifically, the meandering portion 1st portion 621 extending from the step portion 626 toward the flat surface portion 610 has a meandering portion 2nd portion 622, a meandering portion 3rd portion 623, and a meandering portion 2nd portion 622 extending from the step portion 626 toward the drawer portion 6C. It is located in the −Z direction from the fourth part 624 of the meandering part. Therefore, the meandering portion 620 of the first branch portion 6A has a shape in which the end portion in the + Y direction is lowered in the −Z direction as a whole, and the second branch portion 6A has a second shape.
The meandering portion 620 of the branch portion 6B has a shape in which the end portion in the −Y direction is lowered in the −Z direction as a whole. Therefore, the meandering portion 620 of the flexible printed substrate 6 has a three-dimensional shape in which both end portions in the Y-axis direction are lower in the −Z direction than the central portion in the Y-axis direction as a whole.

FIG. 13 is a developed view of the flexible printed substrate 6. The developed shape of the flexible printed substrate 6 includes a first straight line portion 620T constituting the meandering portion 620 and a second straight line portion 630T constituting the bending portion 630. The two flat surface portions 610 drawn out from the camera module 2 in the + X direction are arranged in the Y-axis direction and meander in the plane. The two first straight line portions 620T extend in the X-axis direction on both sides of the two flat surface portions 610 and the camera module 2 in the Y-axis direction. The second straight line portion 630T extends in the Y-axis direction from the end in the −X direction of each first straight line portion 620T and is connected to the lead-out portion 6C. The pull-out portion 6C extends from the second straight line portion 630T on the side opposite to the camera module 2 (that is, in the −X direction).

When processing the flexible printed substrate 6 from the developed shape shown in FIG. 13 to the three-dimensional shape shown in FIGS. 4 and 11, first, both sides of the bending positions A1 and A2 shown in FIG. 13 in the Y-axis direction are bent in the + Z direction. Then, each first straight line portion 620T is raised in the + Z direction. Then, each first straight line portion 620T is folded back three times in the opposite direction to meander toward the virtual center line C located at the center of the developed shape of the flexible printed substrate 6 in the Y-axis direction. As a result, the flat surface portion 610 and the meandering portion 620 overlap each other in the Z-axis direction, and the two meandering portions fourth portion 624 are arranged in parallel at the center of the flexible printed substrate 6 in the Y-axis direction. After that, the reinforcing plates 6F fixed to the fixed portion 6E are joined to each other at the tips in the −X direction of the two meandering portions 4th portion 624. When the camera module 2 is incorporated into the fixed body 11, the drawer portion 6C is fixed to the first substrate fixing portion 81 of the base 5 via the reinforcing plate 6D, and the fixed portion 6E is provided in the case 3 together with the reinforcing plate 6F. 2 Insert into the board fixing portion 82 and fix it. As a result, the three-dimensional shape shown in FIG. 4 is completed.

As shown in FIG. 13, in the two first straight line portions 620T, the step portion 626 is located in the + X direction with respect to the camera module 2. On the -X direction side of the step portion 626, the distance between the two first straight parts 620T is widened by the amount of the step, and the distance between the first straight parts 620T is larger than the width in the Y-axis direction of the camera module 2. It's getting bigger. Therefore, when the camera module 2 is connected to the developed flexible printed circuit board 6, the first straight line portion 620T does not interfere with the camera module 2.

Further, since the first straight line portion 620T includes the step portion 626, a three-dimensional meandering portion 620 having different positions in the Z-axis direction is formed on both sides of the position of the step portion 626. That is, in the meandering portion 620, the meandering portion first portion 621 formed of a portion on the bent position A1 side of the stepped portion 626 is formed of a portion on the bent position A2 side of the stepped portion 626. It has a three-dimensional shape located in the −Z direction from 622, the meandering portion 3rd portion 623, and the meandering portion 4th portion 624. Therefore, the meandering portion 620 of the first branch portion 6A and the meandering portion 620 of the second branch portion 6B have a three-dimensional shape in which both ends in the Y-axis direction are recessed in the −Z direction as a whole.

The flexible printed substrate 6 includes a bent portion 613 that is bent at a substantially right angle at a position where the flat surface portion 610 and the meandering portion 620 are connected, and the shape-retaining member 90 is fixed to the bent portion 613. The shape-retaining member 90 is a member obtained by bending a metal plate made of SUS at a substantially right angle.

As shown in FIG. 12A, each part of the flexible printed circuit board 6 is made of a flexible substrate having a two-layer structure in which two substrates of the first flexible substrate 601 and the second flexible substrate 602 are laminated. Become. Both the first flexible substrate 601 and the second flexible substrate 602 are double-sided substrates. As described above, the flexible printed circuit board 6 is fixed to the bent portion 613 in which the flexible substrate is bent at a substantially right angle, the semicircular curved portion 625 formed at the folded position of the meandering portion 620, and the fixed body 11. A fixed portion 6E and a pull-out portion 6C drawn out from the fixed body 11 are provided, and a first flexible substrate 601 and a second flexible substrate 602 are joined to each other at these portions. On the other hand, the first flexible substrate 601 and the second flexible substrate 602 are not joined at the portions other than the bent portion 613, the curved portion 625, the fixed portion 6E, and the drawer portion 6C, and the first possible is possible. The flexible substrate 601 and the second flexible substrate 602 are separated.

(Main action and effect of this form)
As described above, the optical unit 1 with the shake correction function of the present embodiment has a movable body 10 including the camera module 2 and a rotation support mechanism 12 that rotatably supports the movable body 10 about the optical axis L of the camera module 2. The rotation support mechanism 12 can be rotatably supported around the first axis R1 intersecting the optical axis L, and the rotation support mechanism 12 can be rotated around the second axis R2 intersecting the optical axis L and the first axis R1. The gimbal mechanism 13 that supports the movable body 10, the fixed body 11 that supports the movable body 10 via the gimbal mechanism 13 and the rotation support mechanism 12, and the movable body 10 are pulled out from the movable body 10 in the X-axis direction (first direction) intersecting the optical axis L. It has a flexible printed substrate 6. The flexible printed substrate 6 bends in the optical axis L direction from the end of the flat surface portion 610 and the flat surface portion 610, which intersects the optical axis L and is arranged in a virtual plane along the X-axis direction (first direction), and meanders. However, it is provided with a meandering portion 620 extending in a direction along a virtual plane. The plane portion 610 includes an in-plane curved portion 612 curved in a virtual plane. The meandering portion 620 overlaps with the flat surface portion 610 when viewed from the optical axis L direction.

According to this embodiment, the flexible printed substrate 6 connected to the movable body 10 includes a flat surface portion 610 having a curved shape in a virtual plane P that intersects the optical axis L and is along the X-axis direction (first direction). ing. Therefore, when the movable body 10 rotates in the pitching direction, the flat surface portion 610 tends to bend. Further, the flexible printed substrate 6 includes a meandering portion 620 that bends in the optical axis L direction and extends while meandering from the flat surface portion 610. Therefore, when the movable body 10 rotates in the yawing direction, the flat surface portion 610 and the meandering portion 620 tend to bend. Then, when the movable body 10 rotates in the rolling direction, the meandering portion 620 tends to bend. Therefore, since the flexible printed substrate 6 has a small spring constant in any of the rotation directions of the pitching direction, the yawing direction, and the rolling direction, it is possible to prevent the rotation of the movable body 10 from being hindered by the flexible printed substrate 6. Further, since the flat surface portion 610 and the meandering portion 620 overlap each other when viewed from the optical axis L direction, the arrangement space of the flexible printed substrate 6 is small.

In this embodiment, the meandering portion 620 bends in the optical axis L direction from the end of the flat surface portion 610 in the Y-axis direction (second direction), and meanders in the X-axis direction (first direction) in the Y-axis direction (second direction). ). As a result, it is possible to form a three-dimensional shape in which the flat surface portion 610 and the meandering portion 620 overlap each other when viewed from the optical axis L direction. Further, with such a shape, when the movable body 10 rotates in the pitching direction, not only the flat surface portion 610 but also the meandering portion 620 is likely to bend.

In this embodiment, the in-plane curved portion 612 of the flat surface portion 610 is curved in a shape extending in the X-axis direction (first direction) while meandering in the Y-axis direction (second direction). Therefore, when the movable body 10 rotates in the pitching direction, the flat surface portion 610 tends to bend. Further, when the movable body 10 rotates in the yawing direction, the flat surface portion 610 tends to bend.

FIG. 14 is a diagram showing a simulation result of the shape of the flexible printed substrate 6 when the runout correction in the pitching direction is performed. FIG. 15 is a diagram showing a simulation result of the shape of the flexible printed substrate 6 when the yawing direction runout correction is performed. FIG. 16 is a diagram showing a simulation result of the shape of the flexible printed substrate 6 when the runout correction in the rolling direction is performed. In the three-dimensional shape of the flexible printed substrate 6 of the present embodiment, as can be seen from FIG. 14, when the movable body 10 rotates in the pitching direction, the flat surface portion 610 bends in the Z-axis direction as a whole, and the meandering portion 620 bends in the Y-axis direction. Both ends bend in a shape that rises in the + Z axis direction. Further, as can be seen from FIG. 15, when the movable body 10 rotates in the yawing direction, the flat surface portion 610 tilts around the X axis and the meandering portion 620 bends in the Z axis direction. Then, as can be seen from FIG. 16, when the movable body 10 rotates in the rolling direction, the meandering portion 620 bends so that the meandering portion 1st portion 621 is tilted about the Z axis with respect to the meandering portion 620 4th portion. Therefore, the flexible printed substrate 6 easily bends when the movable body 10 rotates in any direction.

In the present embodiment, the meandering portion 620 is serpentine with the meandering portion first portion 621 that bends in the optical axis L direction from the end of the plane portion 610 in the Y-axis direction (second direction) and extends in the X-axis direction (first direction). It is provided with a meandering part second part 622 that is folded back in the X-axis direction (first direction) from the first part part 621 and extends in a direction along the meandering part first part 621, and is provided with a meandering part first part 621. Is located closer to the flat surface portion 610 in the L direction of the optical axis than the second portion 622 of the meandering portion. Therefore, the meandering portion 620 has a low height in the optical axis L direction of the portion that moves most in the optical axis L direction when the movable body 10 rotates in the yawing direction. Further, when the movable body 10 rotates in the pitching direction, the height of the portion that follows the flat surface portion 610 and moves in the optical axis L direction is low in the optical axis L direction. Therefore, the height of the arrangement space of the flexible printed substrate 6 in the optical axis L direction can be lowered.

In this embodiment, since the flexible printed substrate 6 is bent into a three-dimensional shape as described above, the developed shape of the flexible printed substrate 6 is a developed shape in which the flat surface portion 610 is arranged between the two first straight line portions 620T as shown in FIG. It has become. Therefore, since a large number of flexible printed circuit boards 6 can be manufactured from a substrate material having a small area, the manufacturing cost can be reduced. Further, as a result of forming the stepped portion 626 in order to lower the height of a part of the meandering portion 620 in the optical axis L direction, the unfolded shape of the flexible printed substrate 6 causes the first straight line portion 620T and the camera module 2 to interfere with each other. It has a shape that does not.

In this embodiment, the flexible printed circuit board 6 includes a first branch portion 6A and a second branch portion 6B extending from the camera module 2 in the X-axis direction (first direction). Each of the first branch portion 6A and the second branch portion 6B includes a flat surface portion 610 and a meandering portion 620. The first branch portion 6A and the second branch portion 6B are arranged in the Y-axis direction (second direction), and are in the Y-axis direction (second direction) with reference to the virtual center line C extending in the X-axis direction (first direction). ) Is a symmetrical shape. By branching the flexible printed circuit board 6 into two in this way, the width dimension of each branch portion can be reduced. Therefore, the height of the meandering portion 620 in the optical axis L direction can be reduced, and the height of the arrangement space of the flexible printed substrate 6 in the optical axis L direction can be reduced. Further, this makes it easy for the meandering portion 620 to bend when the movable body 10 rotates in the yawing direction. Further, since the first branch portion 6A and the second branch portion 6B bend in a symmetrical shape, the rotation of the movable body 10 is stable.

In this case, the first branch portion 6A is located in the + Y direction (one side of the second direction) of the second branch portion 6B, and in the first branch portion 6A, the plane portion 610 is located in the + Y direction (one of the second directions). The first part 621 of the meandering portion is connected to the end of the side). In the second branch portion 6B, the meandering portion first portion 621 is connected to the end of the flat surface portion 610 in the −Y direction (the other side in the second direction). Therefore, the flat surface portion 610 and the meandering portion 620 are connected at both ends of the arrangement region of the flexible printed substrate 6 in the Y-axis direction (second direction), and the center of the arrangement region of the flexible printed substrate 6 in the Y-axis direction (second direction). Since the final end of the meandering portion 620 is arranged in the meandering portion 620, the meandering portion 620 is easily deformed in the L direction of the optical axis as a whole. Therefore, the meandering portion 620 tends to bend when the movable body rotates in the yawing direction.

In this embodiment, the fixed body 11 has a first substrate fixing portion 81 that overlaps with the flexible printed circuit board 6 in the optical axis L direction at a position separated from the camera module 2 in the + X direction (one side in the first direction), and a first substrate. A second substrate fixing portion 82 facing the fixing portion 81 in the L direction of the optical axis is provided. The flexible printed circuit board 6 is arranged between the drawer portion 6C fixed to the first substrate fixing portion 81 and extending to the outside of the fixed body 11 and the drawer portion 6C and the meandering portion 620, and is fixed to the second substrate fixing portion 82. A flexible portion 630 extending in the direction of the optical axis L while meandering between the fixed portion 6E to be fixed and the first substrate fixing portion 81 and the second substrate fixing portion 82 in a direction intersecting the optical axis L is provided. As a result, the flexible printed circuit board 6 can be routed at a position separated from the first substrate fixing portion 81 in the optical axis L direction. Therefore, when the first substrate fixing portion 81 is provided on the base 5, it is possible to prevent the deformation of the flexible printed circuit board 6 from being hindered by the contact with the base 5.

In the present embodiment, the second substrate fixing portion 82 is a groove portion recessed in the optical axis L direction, and the fixed portion 6E is inserted into the groove portion together with the reinforcing plate 6F. Therefore, the fixing work of the fixed portion 6E is easy.

In this embodiment, the flexible printed circuit board 6 is a flexible substrate having a two-layer structure including a first flexible substrate 601 and a second flexible substrate 602 that overlaps with the first flexible substrate 601. The flexible printed circuit board 6 has a bent portion 613 bent at a substantially right angle, a semicircular curved portion 625 formed at a folded position of the meandering portion 620, a drawer portion 6C, and a fixed portion 6E, which is first flexible. The substrate 601 and the second flexible substrate 602 are joined to each other, but the first flexible substrate 601 and the first flexible substrate 601 are not included in the portions other than the bent portion 613, the curved portion 625, the drawer portion 6C, and the fixed portion 6E. 2 The flexible substrate 602 is not bonded. Therefore, since the first flexible substrate 601 and the second flexible substrate 602 can be bent in a separated state, it is possible to suppress an increase in the spring constant due to stacking two flexible substrates.

In this embodiment, since the shape-retaining member 90 fixed to the bent portion 613 of the flexible printed substrate 6 is provided, the flexible printed substrate 6 can be kept in a flexible shape. The shape-retaining member may be fixed to the curved portion 625. Further, in this embodiment, the shape-retaining member 90 is made of SUS, but may be made of another material. Further, in the present embodiment, the shape-retaining member 90 is fixed to the outer peripheral side surface of the bent portion 613, but the shape-retaining member may be fixed to the inner peripheral side surface of the bent portion 613. The shape of the shape-retaining member may be any shape that can be held in a bent shape.

(Modification example)
(1) FIG. 17 is a developed view of a modified flexible printed substrate 6. In the developed view shown in FIG. 17, the drawer portion 6C extends from the second straight line portion 630T in the + X direction, and the drawer portion 6C is arranged between the two first straight line portions 620T. By doing so, many flexible printed circuit boards 6 can be manufactured from the substrate material having a smaller area than the developed shape shown in FIG. Therefore, the manufacturing cost can be reduced.

(2) In the above embodiment, the in-plane curved portion 612 has a shape that meanders in the Y-axis direction and extends in the X-axis direction, but may have a shape that meanders in the X-axis direction and extends in the Y-axis direction.

(3) In the above embodiment, the meandering portion has a shape that meanders in the X-axis direction and extends in the Y-axis direction, but may have a shape that meanders in the Y-axis direction and extends in the X-axis direction.

1 ... Optical unit with runout correction function, 2 ... Camera module, 2a ... Lens, 2b ... Image pickup element, 3 ... Case, 4 ... Cover, 4a ... Opening, 5 ... Base, 6 ... Flexible printed substrate, 6A ... First Branch part, 6B ... 2nd branch part, 6C ... drawer part, 6D ... reinforcing plate, 6E ... fixed part, 6F ... reinforcing plate, 7 ... flexible printed board, 8 ... hook, 9 ... protrusion, 10 ... movable body, 11 ... Fixed body, 12 ... Rotation support mechanism, 13 ... Gimbal mechanism, 14 ... Gimbal frame, 15 ... First connection mechanism, 16 ... Second connection mechanism, 17 ... Magnetic plate, 18 ... Frame part, 19 ... Wiring housing part , 20 ... Magnetic drive mechanism for runout correction, 21 ... Magnetic drive mechanism for first runout correction, 21C ... First coil, 21M ... First magnet, 22 ... Magnetic drive mechanism for second runout correction, 22C ...
2nd coil, 22M ... 2nd magnet, 23 ... Magnetic drive mechanism for rolling correction, 23C ... 3rd coil, 23M ... 3rd magnet, 24 ... holder, 25 ... 1st member, 26 ... 1st annular plate portion, 26a ... Circular hole, 27 ... 1st extension part, 28 ... 1st extension part 1st part, 29 ... 1st extension part 2nd part, 30A ... Camera module main body part, 30B ... Camera module cylindrical part, 31 ... 1st side wall, 32 ... 2nd side wall, 32a ... notch, 33 ... 3rd side wall, 34 ... 4th side wall, 35 ... 5th side wall, 36 ... 6th side wall, 37 ... 7th side wall, 38 ... 8th side wall Side wall, 39 ... convex part for stopper, 40 ... concave part, 41 ... bottom surface, 42 ... groove part, 43 ... convex part, 43a ... side surface, 50 ... first rail member, 51 ... first plate-shaped member, 52 ... first penetration Hole, 53 ... 1st annular groove, 54 ... 2nd annular groove, 55 ... 2nd member, 56 ... rolling element, 57 ... retainer, 58 ... spherical holding hole, 59 ... pressurizing mechanism, 60 ... second rail member, 61 ... 2nd plate-shaped member, 62 ... 2nd through hole, 63 ... 2nd annular plate portion, 64 ... second extension plate portion, 65 ... second protruding plate portion, 66 ... second extension portion 1st portion, 67 ... 2nd extension part 2nd part, 68 ... Pressurizing magnet, 69 ... 1st protruding plate part, 70 ... Rotation regulation mechanism, 71 ... 1st rotation regulation part, 72 ... 2nd rotation regulation part, 73 ... Off Notch, 81 ... First board fixing part, 82 ... Second board fixing part, 83 ... Side plate, 90 ... Shape holding member, 140 ... Gimbal frame main body part, 141 ... First axis side extension part, 142 ... Second Shaft side extension, 143 ... Opening, 144 ... First shaft side concave curved surface, 145 ... Notch, 146 ... Protruding part, 147 ... Second shaft side concave curved surface, 148 ... Notch, 151 ... First gimbal frame Receiving member, 152 ... Sphere, 153 ... First thrust receiving member, 154 ... Plate part, 155 ... Foot part, 156 ... Arm part, 157 ... Hole part, 161 ... Recession, 162 ... Second gimbal frame receiving member, 163 ... Sphere, 164 ... Second thrust receiving member, 165 ... Plate part, 166 ... Foot part, 167 ... Arm part, 168 ... Foot bending part, 181a ... Second coil fixing hole, 181 ... First side plate part, 182 ... First 2 side plate part, 183a ... 1st coil fixing hole, 183 ... 3rd side plate part, 184a ... 3rd coil fixing hole, 184 ... 4th side plate part, 185 ... notch part, 191 ... 5th side plate part, 192 ... 6 side plate part, 193 ... 7th side plate part, 194 ... notch part, 601 ... first flexible substrate, 602 ... second flexible substrate, 610 ... flat part, 611 ... straight line part, 612 ... in-plane curvature Part, 613 ... Bending part, 620 ... Serpentine part, 620T ... First straight line part, 621 ... Serpentine part first part, 622 ... meandering part 2nd part, 623 ... meandering part 3rd part, 624 ... meandering part 4th part, 625 ... curved part, 626 ... stepped part, 630 ... bending part, 630T ... second straight part part, A1, A2 ... Bending position, C ... virtual center line, L ... optical axis, P ... virtual plane, R1 ... first axis, R2 ... second axis

Claims (10)

A movable body equipped with a camera module,
A rotary support mechanism that rotatably supports the movable body around the optical axis of the camera module,
A gimbal that rotatably supports the rotary support mechanism around the first axis that intersects the optical axis and rotatably supports the rotary support mechanism around the optical axis and the second axis that intersects the first axis. Mechanism and
A fixed body that supports the movable body via the gimbal mechanism and the rotation support mechanism, and
It has a flexible printed circuit board that is drawn out from the movable body in a first direction intersecting the optical axis.
The flexible printed substrate is
A plane portion that intersects the optical axis and is arranged in a virtual plane along the first direction.
A meandering portion that bends in the optical axis direction from the end of the plane portion and extends in a direction along the virtual plane while meandering is provided.
The flat surface portion includes an in-plane curved portion curved in the virtual plane.
The meandering portion is an optical unit with a runout correction function, characterized in that the serpentine portion overlaps with the flat surface portion when viewed from the optical axis direction. When the direction that intersects the optical axis and intersects the first direction is the second direction,
The runout correction according to claim 1, wherein the meandering portion bends in the optical axis direction from the end of the flat surface portion in the second direction and extends in the second direction while meandering in the first direction. Optical unit with function. The optical unit with a runout correction function according to claim 2, wherein the in-plane curved portion is curved in a shape extending in the first direction while meandering in the second direction. The meandering part is
The first portion of the meandering portion that bends in the optical axis direction and extends in the first direction from the end of the flat surface portion in the second direction.
A second portion of the meandering portion, which is folded back in the opposite direction from the first portion of the meandering portion in the first direction and extends in a direction along the first portion of the meandering portion, is provided.
The optical unit with a runout correction function according to claim 2 or 3, wherein the first portion of the meandering portion is located closer to the plane portion in the optical axis direction than the second portion of the meandering portion. The flexible printed board includes a first branch portion and a second branch portion extending from the camera module in the first direction.
Each of the first branch portion and the second branch portion includes the plane portion and the meandering portion.
The claim is characterized in that the first branch portion and the second branch portion are arranged in the second direction and have a shape symmetrical with respect to the virtual center line extending in the first direction. Item 4. The optical unit with a runout correction function according to Item 4. The first branch portion is located on one side of the second branch portion in the second direction.
In the first branch portion, the meandering portion first portion is connected to one end of the flat surface portion in the second direction.
The optical unit with a shake correction function according to claim 5, wherein in the second branch portion, the first portion of the meandering portion is connected to the other end of the flat surface portion in the second direction. The fixed body is
A first board fixing portion that overlaps with the flexible printed circuit board in the optical axis direction at a position separated from the camera module on one side in the first direction.
The first substrate fixing portion and the second substrate fixing portion facing each other in the optical axis direction are provided.
The flexible printed substrate is
A drawer portion fixed to the first substrate fixing portion and extending to the outside of the fixed body,
A fixed portion arranged between the drawer portion and the meandering portion and fixed to the second substrate fixing portion, and a fixed portion.
Claims 1 to 6 include a bending portion extending in the optical axis direction while meandering in a direction intersecting the optical axis between the first substrate fixing portion and the second substrate fixing portion. An optical unit with a runout correction function described in any one of the above. The second substrate fixing portion is a groove portion recessed in the optical axis direction.
The optical unit with a runout correction function according to claim 7, wherein the fixed portion is inserted into the groove portion together with a reinforcing plate. The flexible printed circuit board includes a first flexible substrate and a second flexible substrate that overlaps the first flexible substrate.
In the bent portion obtained by bending the flexible printed circuit board at a substantially right angle, the curved portion formed at the folded position of the meandering portion, the drawer portion, and the fixed portion, the first flexible substrate and the second possible portion are formed. It is joined to the flexible substrate,
The claim is characterized in that the first flexible substrate and the second flexible substrate are not joined at a portion other than the bent portion, the curved portion, the drawer portion, and the fixed portion. An optical unit with a runout correction function according to 7 or 8. The optical unit with a shake correction function according to any one of claims 1 to 9, wherein the flexible printed substrate includes a shape-retaining member fixed to a bent or curved portion.

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