JP7344780B2 - Optical unit with shake correction function - Google Patents

Description

The present invention relates to an optical unit with a shake correction function that corrects shake of an optical module.

Optical units mounted on mobile terminals and moving objects are equipped with shake-proofing techniques that shake or rotate the movable body on which the optical module is mounted, in order to suppress disturbances in captured images when the mobile terminal or moving object moves. Some are equipped with a correction mechanism. Patent Document 1 discloses this type of optical unit with a shake correction function. Patent Document 1 discloses a lens that is an optical element, a lens holder, a movable body including a holder that holds the lens holder, a fixed body, and a gimbal mechanism that swingably supports the movable body with respect to the fixed body. , a shake correction drive mechanism that swings the movable body. The shake correction drive mechanism is a magnetic drive mechanism including a magnet and a coil.

The fixed body includes a case that accommodates the movable body, and a stopper portion that prevents the movable body from jumping out from the case is provided at the bottom of the case. In Patent Document 1, a rectangular frame-shaped stopper member is fixed to the bottom of a rectangular cylindrical first case that surrounds the outer peripheral side of a movable body.

JP2019-70865A

In an optical unit with a shake correction function, in order to downsize and reduce the number of parts, the case that houses the movable body is integrated with a structure that holds the parts of the gimbal mechanism and the parts of the magnetic drive mechanism. There is. In such cases, resin parts that can be formed into complex shapes are used. When a stopper part is formed at the bottom of a case made of resin, the rigidity of the stopper part is low and there is a risk that the stopper part will be damaged.

For example, if an opening is provided at the bottom of a resin case so that the optical module can be inserted into the case from the bottom side, the stopper part will have a structure that projects from the side surface of the case toward the inner circumference. Therefore, when a movable body collides with the tip of the stopper, the stopper is likely to break, resulting in a problem of low impact resistance.

In view of these points, an object of the present invention is to improve the impact resistance of an optical unit with a shake correction function.

In order to solve the above problems, an optical unit with a shake correction function of the present invention includes a movable body, supports the movable body so as to be swingable around a first axis intersecting the optical axis, and supports the movable body so as to be swingable around a first axis intersecting the optical axis. a swinging support mechanism that supports the movable body so as to be swingable around a second axis intersecting the optical axis and the first axis; a fixed body that supports the movable body via the swinging support mechanism; a shake correction drive mechanism that swings around the first axis and around the second axis, and the fixed body includes an outer frame portion surrounding the outer peripheral side of the movable body, and a case including a projecting portion that projects from an end on the image side in the optical axis direction toward an inner peripheral side; and a case that is fixed to the case from the image side in the optical axis direction and provided on the inner peripheral side of the projecting portion. A cover that closes the opening is provided, the projecting portion includes a stopper portion that overlaps the movable body when viewed from the optical axis direction, and the projecting portion has at least a region including the stopper portion bonded to the cover. It is characterized by

According to the present invention, the fixed body includes a case that accommodates the movable body and a cover that is fixed to the bottom of the case (the end on the image side in the optical axis direction). The bottom of the case is provided with an overhang that extends toward the inner circumference, and the overhang has a stopper that can prevent the movable body from jumping out of the case, and at least the area that includes the stopper is bonded to the cover. has been done. In this way, by adhering the cover to the stopper part, the stopper part can be reinforced. Therefore, it is possible to reduce the risk of the overhanging portion being damaged by an impact such as when the optical unit is dropped, and it is possible to improve the impact resistance of the optical unit with a shake correction function.

In the present invention, it is preferable that the entire area of the projecting portion is bonded to the cover. In this way, the entire projecting portion can be reinforced. Therefore, the impact resistance of the optical unit with a shake correction function can be further improved.

In the present invention, it is preferable that the thickness of the cover in the optical axis direction is smaller than the thickness of the projecting portion in the optical axis direction. When the cover and the case are made of different materials and the cover is made of a highly rigid material, the reinforcing effect can be enhanced even if the cover is thin. Therefore, compared to the case where reinforcement is performed by increasing the thickness of the overhanging portion, an increase in the dimension in the optical axis direction can be suppressed. Therefore, it is advantageous to reduce the thickness of the optical unit with a shake correction function.

In the present invention, it is preferable that the case is a resin part and the cover is a metal part. By making the case a resin part, complex shapes can be formed in one piece. Therefore, the number of parts can be reduced. Further, even if the thickness of the cover is thin, the reinforcing effect is high. Therefore, an increase in the dimension of the fixed body in the optical axis L direction can be suppressed more than in the case where the rigidity is increased by increasing the wall thickness of the projecting portion. Therefore, it is advantageous for making the optical unit with a shake correction function thinner.

In this case, the swing support mechanism includes a gimbal frame that connects the movable body and the fixed body, and a gimbal frame that makes point contact with the gimbal frame is provided at a diagonal position in the second axis direction of the case. Two supporting points may be provided, and the shake correction drive mechanism may include a coil arranged in a coil arrangement hole provided in the case and a magnet fixed to the movable body. . Complex shapes can be integrally formed into the resin case. Therefore, the fulcrum portion of the gimbal mechanism and the coil arrangement hole can be integrally formed, so the number of parts can be reduced. Additionally, the effort required during assembly can be reduced.

In the present invention, the movable body includes an optical module and a holder that surrounds the outer circumferential side of the optical module, the optical module is provided with a protrusion that protrudes toward the outer circumferential side, and the holder is arranged in the optical axis direction. The case includes a position regulating part that the protruding part abuts from the image side, the case includes a notch that is formed by cutting out the inner peripheral edge of the projecting part toward the outer circumferential side, and the protruding part and the position regulating part are arranged so that the light It is preferable that it be located inside the notch when viewed from the axial direction. In this case, since the protrusion becomes a positioning reference in the optical axis direction of the optical module, the positioning reference can be placed at a position different from the top surface of the optical module. Therefore, the positioning reference of the optical module can be brought closer to the rotation center of the movable body, and variations in the position of the center of gravity of the movable body can be reduced. In addition, although the optical module has a protrusion that serves as a positioning reference, it is possible to avoid interference between the positioning reference (protrusion) and the protrusion when assembling the optical module to the holder from the bottom of the case. . Therefore, after assembling the swing support mechanism and the shake correction drive mechanism between the case and the holder, the optical module with shake correction function is assembled by inserting the optical module from the bottom of the case and fixing it to the holder. be able to.

In the present invention, the inner peripheral edge of the holder is provided with a recess that is recessed toward the subject in the optical axis direction, and the recess is located inside the notch when viewed from the optical axis direction, and the recess is located inside the notch and restricts the position. It is preferable that the part is a bottom surface of the recess, and the recess is an adhesive reservoir in which an adhesive for fixing the optical module to the holder is placed. In this way, the notch part for preventing the protruding part from interfering with the overhanging part can be used as a window part for passing the syringe for applying adhesive. Therefore, the adhesive can be applied to the recess from the outside of the case. Further, since the position regulating portion and the adhesive reservoir can be arranged at the same position, it is possible to avoid complicating the shape of the component.

In the present invention, the case includes a case end face facing the cover in the optical axis direction, and a convex portion protruding from the case end face, and the cover is formed between the case end face and the cover. Preferably, it is fixed to the case by an adhesive layer. If the part where the case and cover are bonded has a structure in which flat surfaces are bonded together, if either part warps, the gap between the flat surfaces will become too large and there will be places where the adhesive layer cannot be formed. I can do it. As a result, there is a problem in that a bonding area cannot be secured and rigidity cannot be secured. In the present invention, by forming the convex portion on the end face of the case in advance, it is possible to prevent the gap from becoming too large even when warpage occurs in either the case or the cover. Therefore, since there is little possibility that the bonding area cannot be secured, there is little possibility that rigidity cannot be secured. Therefore, the impact resistance of the optical unit with shake correction function can be improved.

In the present invention, it is preferable that the convex portion extends to an edge of the end surface of the case. In this way, the structure of the mold for forming the convex portion on the end face of the case can be simplified.

In the present invention, the cover includes a bottom cover fixed to the end surface of the case, and a sealing cover that closes an inner opening formed in the bottom cover, and the inner opening is separated from the optical axis direction. It is preferable that the bottom cover includes an adhesive leakage prevention wall that is disposed on the inner peripheral side of the opening when viewed from above, and that rises from the edge of the inner opening toward the case. In this way, if the adhesive applied between the case and the cover protrudes from the edge of the opening of the case, leakage of the adhesive can be prevented. Therefore, even if a large amount of adhesive is applied to secure the adhesive area, leakage of the adhesive can be suppressed.

In the present invention, the case includes a first frame portion and a second frame portion facing each other in a first direction orthogonal to the optical axis with the movable body in between, and a first frame portion and a second frame portion that are orthogonal to the optical axis with the movable body in between. a third frame portion and a fourth frame portion facing each other in a second direction perpendicular to the first direction, the third frame portion having a cutout portion through which a flexible printed circuit board connected to the movable body is passed; Preferably, at least one convex portion is provided in each of the first frame portion, the second frame portion, and the fourth frame portion. In this way, since the convex portions are placed on all three sides surrounding the opening of the case, the gap between the end face of the case and the second cover becomes too large on all three sides, making it impossible to form an adhesive layer. This can reduce the risk. Therefore, since there is little possibility that the bonding area cannot be secured, there is little possibility that rigidity cannot be secured.

In the present invention, the case includes a penetrating portion that penetrates a diagonal position in the second axis direction in the optical axis direction, and the case end face has a recess located between the penetrating portion and the convex portion. It is preferable to have one. In this way, even if an excessive amount of adhesive is applied between the penetrating portion and the convex portion, the adhesive can be accommodated in the recess. Therefore, leakage of adhesive from the penetrating portion can be suppressed.

According to the present invention, the fixed body includes a case that accommodates the movable body and a cover that is fixed to the bottom of the case (the end on the image side in the optical axis direction). The bottom of the case is provided with an overhang that extends toward the inner circumference, and the overhang has a stopper that can prevent the movable body from jumping out of the case, and at least the area that includes the stopper is bonded to the cover. has been done. In this way, by adhering the cover to the stopper part, the stopper part can be reinforced. Therefore, it is possible to reduce the risk of the overhanging portion being damaged by an impact such as when the optical unit is dropped, and it is possible to improve the impact resistance of the optical unit with a shake correction function.

1 is an external perspective view of an optical unit with a shake correction function according to a first embodiment of the present invention; FIG. FIG. 2 is an exploded perspective view of the optical unit with shake correction function shown in FIG. 1 as viewed from the subject side. FIG. 2 is an exploded perspective view of the optical unit with shake correction function shown in FIG. 1 as seen from the image side. FIG. 3 is a plan view of the optical unit with shake correction function with the first cover removed. FIG. 2 is a sectional view (a sectional view taken along the line AA in FIG. 1) of the optical unit with a shake correction function shown in FIG. 1; FIG. 3 is an exploded perspective view of the gimbal frame, the first thrust receiving member, and the second thrust receiving member. FIG. 7 is a bottom view of the optical unit with shake correction function with the second cover removed. They are a bottom view of the fixed body and holder with the second cover removed, and a bottom view of the optical module. FIG. 7 is a perspective view of the fixed body, the holder, and the optical module from the image side with the second cover removed. FIG. 7 is a sectional view (a sectional view taken along the line BB in FIG. 7) of the optical unit with a shake correction function shown in FIG. 1, and a partially enlarged view thereof. FIG. 7 is an exploded perspective view of an optical unit with a shake correction function according to a second embodiment of the present invention, viewed from the subject side. FIG. 6 is a perspective view of the optical unit with a shake correction function of Embodiment 2 with a second cover removed, as seen from the image side, and a partially enlarged view thereof. FIG. 6 is a cross-sectional view and a partially enlarged view of an optical unit with a shake correction function according to a second embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an optical unit 1 with a shake correction function to which the present invention is applied will be described below with reference to the drawings. In this specification, the three axes XYZ are axial directions perpendicular to each other, and one side in the X-axis direction is indicated by +X and the other side by -X, and one side in the Y-axis direction is indicated by +Y and the other side by -Y. One side in the Z-axis direction is indicated by +Z, and the other side is indicated by -Z. The Z-axis direction coincides with the optical axis L direction of the optical module 2. Therefore, the +Z direction is one side of the optical axis L direction, and is the subject side. Further, the −Z direction is the other side in the optical axis L direction, and is the image side.

[Embodiment 1]
(overall structure)
FIG. 1 is a perspective view of an optical unit 1 with a shake correction function according to Embodiment 1 to which the present invention is applied. FIG. 2 is an exploded perspective view of the optical unit 1 with shake correction function shown in FIG. 1, viewed from the subject side (+Z direction). FIG. 3 is an exploded perspective view of the optical unit 1 with shake correction function shown in FIG. 1, viewed from the image side (-Z direction). FIG. 4 is a plan view of the optical unit 1 with a shake correction function with the first cover 51 removed, and is a plan view seen from the subject side (+Z direction). FIG. 5 is a sectional view (a sectional view taken along the line AA in FIG. 1) of the optical unit 1 with a shake correction function shown in FIG. FIG. 6 is an exploded perspective view of the gimbal frame 9, the first thrust receiving member 44, and the second thrust receiving member 46.

As shown in FIG. 1, the optical unit 1 with a shake correction function according to the first embodiment includes an optical module 2 including optical elements such as lenses. The optical unit 1 with a shake correction function is used, for example, in optical devices such as camera-equipped mobile phones and drive recorders, and in optical devices such as action cameras and wearable cameras mounted on moving objects such as helmets, bicycles, and radio-controlled helicopters. . In such an optical device, if the optical device shakes during photographing, disturbances occur in the captured image. The optical unit 1 with a shake correction function corrects the tilt of the optical module 2 based on the acceleration, rotational speed, shake amount, etc. detected by a detection means such as a gyroscope, in order to avoid tilting of a photographed image.

As shown in FIGS. 1 to 5, the optical unit 1 with shake correction function of the first embodiment includes a movable body 3 on which an optical module 2 is mounted, a gimbal mechanism 4 that swingably supports the movable body 3, A fixed body 5 that supports the movable body 3 via the gimbal mechanism 4, a shake correction drive mechanism 6 that swings the movable body 3 with respect to the fixed body 5, and a first flexible printed circuit board connected to the movable body 3. 7 and a second flexible printed circuit board 8 attached to the fixed body 5. The first flexible printed circuit board 7 includes a connector section provided at the end opposite to the side connected to the movable body 3. Further, the second flexible printed circuit board 8 includes a terminal portion provided at an end portion on the opposite side to the side to be attached to the fixed body 5.

The optical unit 1 with a shake correction function performs shake correction by swinging the movable body 3 around two axes (X-axis and Y-axis) that intersect with the optical axis L (Z-axis) and intersect with each other. By performing shake correction around the X-axis and shake correction around the Y-axis, shake correction in the pitching (pitching) direction and shake correction in the yawing (horizontal shaking) direction is performed.

As shown in FIGS. 1 and 4, the movable body 3 is supported by a gimbal mechanism 4 so as to be swingable around a first axis R1 perpendicular to the optical axis L (Z-axis), and It is supported so as to be swingable around a second axis R2 that is perpendicular to the first axis R1. The first axis R1 and the second axis R2 are inclined at 45 degrees with respect to the X axis and the Y axis. By combining the rotation around the first axis R1 and the rotation around the second axis R2, the movable body 3 can swing around the X axis and the Y axis. Therefore, the movable body 3 is supported by the gimbal mechanism 4 so as to be swingable around the X-axis and the Y-axis.

As shown in FIG. 4, the gimbal mechanism 4 has a first fulcrum portion 41 provided at a diagonal position on the first axis R1 of the movable body 3, and a first fulcrum portion 41 provided at a diagonal position on the second axis R2 of the fixed body 5. A second fulcrum portion 42 and a gimbal frame 9 are provided. The gimbal frame 9 is a metal plate spring, and has two first support parts 901 provided at diagonal positions on the first axis R1 and one at diagonal positions on the second axis R2. Two second support portions 902 are provided. The gimbal mechanism 4 is assembled so that the first support part 901 is in point contact with the first fulcrum part 41 and the second support part 902 is in point contact with the second fulcrum part 42 . Thereby, the movable body 3 is supported via the gimbal frame 9 so as to be swingable around the first axis R1, and is also supported so as to be swingable around the second axis R2.

As shown in FIGS. 2 to 4, the shake correction drive mechanism 6 includes a first magnetic drive mechanism 6X that rotates the movable body 3 around the X-axis, and a second magnetic drive mechanism that rotates the movable body 3 around the Y-axis. A mechanism 6Y is provided. The first magnetic drive mechanism 6X includes a pair of magnets 61X and a coil 62X. Further, the second magnetic drive mechanism 6Y includes a pair of magnets 61Y and a coil 62Y. The magnet 61X and the coil 62X of the first magnetic drive mechanism 6X face each other in the Y-axis direction. In the first embodiment, the magnet 61Y and the coil 62Y of the second magnetic drive mechanism 6Y face each other in the X-axis direction. Note that the arrangement of the magnets 61X, 61Y and the coils 62X, 62Y may be reversed from that of the first embodiment. That is, the magnets 61X and 61Y may be placed on the fixed body 5, and the coils 62X and 62Y may be placed on the movable body 3.

The first magnetic drive mechanism 6X is arranged on the side surface of the movable body 3 in the −Y direction. Further, the second magnetic drive mechanism 6Y is arranged on the side surface of the movable body 3 in the +X direction. Moreover, the first flexible printed circuit board 7 connected to the movable body 3 is pulled out from the side surface of the outer peripheral surface of the movable body 3 in the +Y direction where the first magnetic drive mechanism 6X and the second magnetic drive mechanism 6Y are not arranged. It will be done. In the first embodiment, as will be described later, a first folded portion 71, which is obtained by bending the first flexible printed circuit board 7 in the +Z direction and folding it back once in the opposite direction, is arranged on the side surface of the movable body 3 in the +Y direction.

(movable body)
As shown in FIGS. 2 and 3, the movable body 3 includes an optical module 2 and a holder 30 that holds the optical module 2. The optical module 2 includes a housing 20 that is rectangular when viewed from the optical axis L direction, a substrate 25 disposed at the end of the housing 20 in the -Z direction, a cylindrical portion 26 protruding from the housing 20 in the +Z direction, and a cylindrical portion. The housing 20 includes a lens group 2A (optical element) held by the housing 26, and a lens drive mechanism 27 (see FIGS. 4 and 5) arranged inside the housing 20. An image sensor (not shown) is mounted on the substrate 25. The optical module 2 is a camera module that includes a lens group 2A, a lens drive mechanism 27, and an image sensor.

The lens drive mechanism 27 focuses on the subject by adjusting the lens position of the lens group 2A arranged in the optical axis L direction. The lens drive mechanism 27 includes a magnetic drive mechanism. Note that the lens drive mechanism 27 may include a drive source other than the magnetic drive mechanism. For example, it may include a motor. The lens drive mechanism 27 is arranged on the opposite side of the optical axis L with respect to the first magnetic drive mechanism 6X or the second magnetic drive mechanism 6Y. In the first embodiment, the lens drive mechanism 27 is arranged on the opposite side of the first magnetic drive mechanism 6X with the optical axis L interposed therebetween.

The holder 30 is a frame-shaped member surrounding the outer circumferential side of the optical module 2. The housing 20 includes a first side surface 21 facing in the +X direction, a second side surface 22 facing in the -X direction, a third side surface 23 facing in the +Y direction, and a fourth side surface 24 facing in the -Y direction. The holder 30 has a first frame portion 31 along the first side surface 21 of the housing 20, a second frame portion 32 along the second side surface 22, a third frame portion 33 along the third side surface 23, and a third frame portion along the fourth side surface 24. It has four frame parts 34. The first frame portion 31 , the second frame portion 32 , and the fourth frame portion 34 are in contact with the housing 20 . On the other hand, a gap S is provided between the third frame portion 33 and the third side surface 23 of the housing 20 (see FIG. 5). Further, the third frame portion 33 includes a notch portion 35 that is formed by cutting the end portion in the −Z direction in the +Z direction. After forming the first folded portion 71 arranged along the third side surface 23 of the housing 20 , the first flexible printed circuit board 7 is bent in the +Y direction and pulled out from the notch 35 to the outside of the holder 30 .

In the gap S provided between the third frame portion 33 and the third side surface 23 of the housing 20, a first folded portion 71, which is obtained by folding the first flexible printed circuit board 7 once, is arranged. The first folded portion 71 extends in the Z-axis (optical axis L) direction along the side surface of the housing 20 in the +Y direction. The first flexible printed circuit board 7 is bent at a substantially right angle at the end of the first folded portion 71 in the −Z direction, and is passed through the cutout portion 35 provided in the third frame portion 33 so that the first flexible printed circuit board 7 is bent in the +Y direction of the holder 30. It is pulled out to the side.

As shown in FIGS. 2 and 3, the holder 30 includes a first fulcrum portion 41 of the gimbal mechanism 4. As shown in FIGS. In Embodiment 1, the inner surface of the corner where the second frame section 32 and the third frame section 33 are connected, and the inner surface of the corner section where the first frame section 31 and the fourth frame section 34 are connected are provided at two locations, respectively. , a first fulcrum portion 41 is provided. The first fulcrum portion 41 includes a recess 43 recessed radially outward, and a first thrust receiving member 44 disposed in the recess 43 . As shown in FIG. 6, the first thrust receiving member 44 includes a plate-shaped first plate portion 441 extending in the Z-axis (optical axis L) direction, and a plate-shaped first plate portion 441 extending at a substantially right angle from an end of the first plate portion 441 in the −Z direction. The second plate portion 442 is bent to extend radially inward. The second plate portion 442 abuts in the Z-axis (optical axis L) direction against the -Z-direction inner surface of the recess 43 provided in the holder 30, so that the first fulcrum portion 41 is aligned with the Z-axis (optical axis L). position in the direction.

As shown in FIG. 6, the first thrust receiving member 44 is provided with a through hole 443 that passes through the first plate portion 441, and a sphere 444 is fixed to the through hole 443 from the inside in the radial direction. The first thrust receiving member 44 is made of metal, and the sphere 444 is fixed to the first plate portion 441 by welding. The sphere 444 makes point contact with a first support portion 901 provided on the gimbal frame 9 . The first support portion 901 is a concave curved surface having a radius of curvature larger than the radius of the sphere 444, and comes into elastic contact with the sphere 444 from the inside in the radial direction.

The holder 30 includes a convex portion 36 protruding from the end faces of the first frame portion 31 , the second frame portion 32 , the third frame portion 33 , and the fourth frame portion 34 in the +Z direction. The convex portion 36 is provided at one location each at the center of the first frame portion 31 and the second frame portion 32 in the Y-axis direction, and at the center of the third frame portion 33 and the fourth frame portion 34 in the X-axis direction. There is. The four protrusions 36 have the same protrusion height in the +Z direction. The convex portion 36 functions as a stopper that restricts the swing range of the movable body 3 around the first axis R1 and around the second axis R2. That is, when the movable body 3 swings around the first axis R1 and around the second axis R2, the convex portion 36 comes into contact with the first cover 51 of the fixed body 5, thereby restricting the swing range of the movable body 3. .

A corner portion 38 is provided at a diagonal position of the holder 30 in the first axis R1 direction to surround the recessed portion 43 that constitutes the first fulcrum portion 41 of the gimbal mechanism 4 from the outside in the radial direction. The corner portion 38 faces the first cover 51 in the optical axis L direction at a diagonal position in the first axis R1 direction. The corner portion 38 is located on the outside in the radial direction of the gimbal frame 9, and is located on the −Z direction side with respect to the convex portion 36. When the movable body 3 swings around the second axis R2, the corner portion 38 comes into contact with the first cover 51, thereby restricting the swing range of the movable body 3.

The holder 30 includes a magnet arrangement recess 37 in which the magnet 61X of the first magnetic drive mechanism 6X and the magnet 61Y of the second magnetic drive mechanism 6Y are arranged. In the first embodiment, magnet arrangement recesses 37 are formed in the first frame portion 31 and the fourth frame portion 34 . The magnet placement recess 37 is recessed radially inward. Since the holder 30 is made of resin, a plate-shaped yoke member 63 is arranged in the magnet arrangement recess 37. The yoke member 63 is fixed to the inner surface of the magnet placement recess 37, and the magnets 61X and 61Y are fixed to the radially outer surface of the yoke member 63. The magnets 61X and 61Y have surfaces facing outward in the radial direction that are magnetized differently with respect to a magnetized polarization line located approximately at the center in the Z-axis (optical axis L) direction.

(fixed body)
The fixed body 5 includes a case 50 , a first cover 51 and a second cover 52 fixed to the case 50 , and a wiring cover 53 . The case 50 is made of resin, and the first cover 51, second cover 52, and wiring cover 53 are made of nonmagnetic metal. The case 50 includes an outer frame portion 50A that surrounds the outer peripheral side of the movable body 3, a wiring accommodating portion 50B that protrudes in the +Y direction from the −Z direction side of the outer frame portion 50A, and a −Z direction side of the outer frame portion 50A. It is provided with an overhanging portion 50C that overhangs from the (image side) end toward the inner peripheral side. The first cover 51 is fixed to the +Z direction end of the outer frame portion 50A. The second cover 52 is fixed to the ends of the overhanging portion 50C and the wiring housing portion 50B in the −Z direction. The wiring cover 53 is fixed to the +Z direction end of the wiring housing portion 50B.

Elastic engagement portions 58 are provided on the outer peripheries of the first cover 51, the second cover 52, and the wiring cover 53. Furthermore, a claw portion 59 is provided on the outer peripheral surface of the case 50. The elastic engagement portion 58 is a metal piece extending in the Z-axis (optical axis L) direction, and includes an opening into which a claw portion 59 is fitted. The claw portion 59 protrudes radially outward from the inner surface of a recess formed on the outer peripheral surface of the case 50. The first cover 51 , the second cover 52 , and the wiring cover 53 are fixed to the case 50 by engaging the elastic engagement portions 58 with the claw portions 59 . Further, the first cover 51 includes a contact portion 57 that is bent at a substantially right angle from the edge in the +Y direction and extends in the −Z direction. The contact portion 57 contacts the third frame portion 503 of the outer frame portion 50A from the outer peripheral side (+Y direction).

The first cover 51 faces the outer peripheral portion of the movable body 3 disposed inside the outer frame portion 50A in the Z-axis direction, and prevents the movable body 3 from jumping out in the +Z direction. The first cover 51 includes a substantially rectangular opening 510. In the first embodiment, a portion of the gimbal frame 9 protrudes from the opening 510 in the +Z direction. Furthermore, the cylindrical portion 26 of the optical module 2 protrudes in the +Z direction from a central hole 90 provided at the radial center of the gimbal frame 9. The first cover 51 is located at the end of the fixed body 5 in the +Z direction. Therefore, a portion of the optical module 2 and the gimbal frame 9 protrude further in the +Z direction than the end of the fixed body 5 in the +Z direction.

The outer frame portion 50A includes a first frame portion 501 and a second frame portion 502 that extend in parallel to the Y-axis direction on the +X direction side and the −X direction side of the movable body 3, and the +Y direction side and the −Y direction side of the movable body 3. A third frame portion 503 and a fourth frame portion 504 are provided on the sides, extending in parallel to the X-axis direction. The wiring housing section 50B includes a fifth frame section 505 and a sixth frame section 506 extending in parallel to the +Y direction from the -Z direction ends of the first frame section 501 and the second frame section 502, and a fifth frame section 505 and a sixth frame section 506. A seventh frame portion 507 is connected to the end of the sixth frame portion 506 in the +Y direction and extends in the X-axis direction.

The outer frame portion 50A is provided with a notch portion 508, which is obtained by cutting the −Z direction end portion of the third frame portion 503 in the +Z direction. The first flexible printed circuit board 7 extends from the cutout portion 508 to the inside of the wiring housing portion 50B. The first flexible printed circuit board 7 includes a second folded portion 72 that extends in the +Y direction inside the wiring housing portion 50B and is folded back once in the opposite direction, and a third folded portion that overlaps the second folded portion 72 in the +Z direction. 73.

The wiring cover 53 includes a notch 531 that is cut out approximately in the center of the edge in the −Y direction in the +Y direction. The third folded portion 73 of the first flexible printed circuit board 7 is pulled out from the notch 531 to the outside of the wiring housing portion 50B, and extends in the +Y direction along the wiring cover 53. The first flexible printed circuit board 7 includes a fixing portion 74 fixed to the wiring cover 53. The fixing part 74 is fixed to the edge of the notch part 531.

The first flexible printed circuit board 7 includes a flexible substrate 70 and a reinforcing plate 75 fixed to the flexible substrate 70. The reinforcing plate 75 is arranged at the first folded portion 71 and the second folded portion 72, and functions as a spacer by being sandwiched between the flexible substrates 70 bent in opposite directions. Further, a reinforcing plate 75 provided on the fixed portion 74 is arranged between the wiring cover 53 and the flexible substrate 70 and functions as a spacer between the wiring cover 53 and the flexible substrate 70.

The outer frame portion 50A includes a second fulcrum portion 42 of the gimbal mechanism 4. In Embodiment 1, the inner surface of the corner where the first frame section 501 and the third frame section 503 are connected, and the inner surface of the corner section where the second frame section 502 and the fourth frame section 504 are connected are provided at two locations, respectively. , a second fulcrum portion 42 is provided. The second fulcrum portion 42 includes a recess 45 recessed radially outward, and a second thrust receiving member 46 disposed in the recess 45 . As shown in FIG. 6, the second thrust receiving member 46 includes a first plate portion 461 extending in the optical axis L direction, and a radially inner side bent approximately at right angles from an end of the first plate portion 461 in the −Z direction. A second plate portion 462 is provided that extends to. The second plate portion 462 abuts in the Z-axis (optical axis L) direction against the inner surface in the −Z direction of the recess 45 provided in the outer frame portion 50A, so that the second fulcrum portion 42 L) direction.

As shown in FIG. 6, the second thrust receiving member 46 is provided with a through hole 463 that passes through the first plate portion 461, and a sphere 464 is fixed to the through hole 443 from the inside in the radial direction. The second thrust receiving member 46 is made of metal, and the sphere 464 is fixed to the first plate portion 461 by welding. The sphere 464 makes point contact with a second support portion 902 provided on the gimbal frame 9 . The second support portion 902 is a concave curved surface with a radius of curvature larger than the radius of the sphere 464, and comes into elastic contact with the sphere 464 from the inside in the radial direction.

The outer frame portion 50A includes a coil placement hole 54 into which the coil 62X of the first magnetic drive mechanism 6X and the coil 62Y of the second magnetic drive mechanism 6Y are fixed with an adhesive or the like. The coil placement hole 54 penetrates the first frame portion 501 and the fourth frame portion 504. The coils 62X and 62Y are oval air-core coils, and the two long sides located in the +Z direction and the -Z direction are used as effective sides. The second flexible printed circuit board 8 is fixed to the outer frame portion 50A from the radially outer side with respect to the first frame portion 501 and the fourth frame portion 504. The second flexible printed circuit board 8 has a first board portion 81 that overlaps the coil placement hole 54 of the fourth frame portion 504 from the outside in the radial direction, and a first board portion 81 that overlaps the coil placement hole 54 of the first frame portion 501 from the outside in the radial direction. A second substrate portion 82 is provided which overlaps the second substrate portion 82 .

A rectangular magnetic plate 64 is arranged between the first substrate portion 81 and the coil 62X, and between the second substrate portion 82 and the coil 62Y. The magnetic plate 64 disposed between the first substrate portion 81 and the coil 62X faces the magnet 61X, and has a magnetic spring for returning the movable body 3 to the reference rotational position in the rotational direction around the X-axis. It consists of Further, the magnetic plate 64 disposed between the second substrate portion 82 and the coil 62Y faces the magnet 61Y, and serves as a magnet for returning the movable body 3 to the reference rotational position in the rotational direction around the Y-axis. It makes up a spring.

The magnetic plate 64 includes a rectangular through hole at a position overlapping the center holes of the coils 62X, 62Y, and a magnetic sensor 65 is arranged in the through hole. The magnetic sensor 65 is, for example, a Hall element. The optical unit 1 with a shake correction function detects the swing angle of the movable body 3 around the X-axis from the output of the magnetic sensor 65 arranged at the center of the coil 62X. Further, the swing angle of the movable body 3 around the Y-axis is detected from the output of the magnetic sensor 65 arranged at the center of the coil 62Y.

(Gimbal frame)
As shown in FIG. 6, the gimbal frame 9 includes a first frame portion 91 that is approximately square when viewed from the Z-axis direction, and is bent approximately at right angles from four corners of the first frame portion 91 in the −Z direction. A second frame portion 92 is included. The second frame portions 92 are arranged at first diagonal positions on both sides of the first frame portion 91 in the first axis R1 direction and at second diagonal positions on both sides of the first frame portion 91 in the second axis R2 direction. be done. A central hole 90 passing through the first frame portion 91 is provided at the center of the first frame portion 91 .

The first frame portion 91 includes a square rectangular portion 910 whose diagonal directions are a first axis R1 direction and a second axis R2 direction when viewed from the Z-axis (optical axis L) direction, and a first axis R1 of the rectangular portion 910. The rectangular portion 910 includes a first protruding portion 913 that protrudes outward in the radial direction from the corner portions on both sides of the rectangular portion 910, and a second protruding portion 914 that protrudes outward in the radial direction from the corner portions on both sides of the rectangular portion 910 in the second axis R2 direction.

As shown in FIGS. 1 and 6, in the rectangular portion 910 of the first frame portion 91, a central portion 911 located at the center in the second axis R2 direction is recessed in the −Z direction, and both ends in the second axis R2 direction A corner portion 912 of is located on the +Z direction side from the center portion 911. That is, in the first frame portion 91, the corner portion 912 in the second axis R2 direction is further away from the movable body 3 than the central portion 911. Therefore, the movable body 3 swings around the first axis R1 on the −Z direction side of the gimbal frame 9, and both ends of the movable body 3 in the second axis R2 direction (that is, the corners of the housing 20 in the second axis R2 direction) ) moves in the Z-axis direction, collision between the movable body 3 and the gimbal frame 9 can be avoided.

Further, the central portion 911 extends to a corner of the first frame portion 91 in the first axis R1 direction. Here, when the movable body 3 swings around the second axis R2, the corner of the first frame portion 91 in the first axis R1 direction swings around the second axis R2 about the second fulcrum part 42. The gimbal frame 9 is the part that moves the most in the Z-axis (optical axis L) direction. In this way, when the corner of the first frame portion 91 in the first axis R1 direction is most recessed in the -Z direction, the operating space of the gimbal frame 9 when the movable body 3 swings is It can be made smaller in the axial (optical axis L) direction. Therefore, the required height in the Z-axis (optical axis L) direction of the space in which the optical unit 1 with a shake correction function is installed can be reduced.

The second frame portion 92 includes first support extension portions 93 provided at two corners on the first axis R1 of the gimbal frame 9, and two extension portions 93 provided at two corners on the second axis R2 of the gimbal frame 9. A second support part extension part 94 is provided at the corner. The first support portion extension portion 93 extends linearly from the first protruding portion 913 of the first frame portion 91 in the −Z direction. A first support portion 901, which is a concave curved surface recessed inward in the radial direction, is formed at the distal end portion of the first support portion extension portion 93 by press working. The second support part extension part 94 includes a first part 941 that extends in the -Z direction from the second protruding part 914 of the first frame part 91, and a first part 941 that is bent at a substantially right angle from the first part 941 and extends radially outward. It includes a second portion 942 and a third portion 943 that is bent from the second portion 942 at a substantially right angle and extends in the -Z direction. A second support portion 902, which is a concave curved surface recessed inward in the radial direction, is formed at the tip portion of the third portion 943 by press working.

The first support portion extending portion 93 is disposed in a cutout portion 511 obtained by cutting a corner portion of the opening portion 510 of the first cover 51 in the first axis R1 direction outward in the radial direction. A first fulcrum part 41, which is a fulcrum part of the gimbal mechanism 4 provided on the movable body 3 side, is arranged on the -Z direction side of the notch part 511, and the tip of the first support part extension part 93 is arranged. The portion is supported by the first fulcrum portion 41. Further, the second support portion extending portion 94 is disposed in a notch portion 512 that is obtained by cutting a corner portion of the opening portion 510 of the first cover 51 in the second axis R2 direction toward the outside in the radial direction. A second fulcrum part 42, which is a fulcrum part of the gimbal mechanism 4 provided on the fixed body 5 side, is arranged on the -Z direction side of the notch part 512, and the tip of the second support part extension part 94 is arranged. The portion is supported by the second fulcrum portion 42.

The first support part extension part 93 and the second support part extension part 94 are elastically deformed in the radial direction. Therefore, the first support portion 901 provided at the tip of the first support portion extension portion 93 comes into elastic contact with the sphere 444 provided on the first fulcrum portion 41 . Further, the second support portion 902 provided at the tip of the second support portion extension portion 94 comes into elastic contact with the sphere 464 provided on the second fulcrum portion 42 . This makes it difficult for the first support part extension part 93 and the second support part extension part 94 to come off from the first fulcrum part 41 and the second fulcrum part 42, suppressing the wobbling of the fulcrum parts. .

(Optical module positioning standard)
FIG. 7 is a bottom view of the optical unit 1 with a shake correction function with the second cover 52 removed. 8(a) is a bottom view of the fixed body 5 and the holder 30 with the second cover 52 removed, and FIG. 8(b) is a bottom view of the optical module 2. 8 and 9 are views seen from the -Z direction (image side). FIG. 9 is a perspective view of the fixed body 5, the holder 30, and the optical module 2 with the second cover 52 removed, viewed from the −Z direction (image side). As shown in FIGS. 2 and 9, the optical module 2 includes a plurality of protrusions 28 that protrude toward the outer circumference. Furthermore, a plurality of recesses 39 recessed in the +Z direction (towards the subject) are formed on the inner peripheral edge of the end surface of the holder 30 in the -Z direction. As shown in FIGS. 8 and 9, the recess 39 includes four first recesses 391 provided at positions overlapping with the protrusion 28 when viewed from the Z-axis (optical axis L) direction, and four first recesses 391 provided at positions overlapping with the protrusion 28. Two second recesses 392 are provided at different positions.

As shown in FIGS. 2 and 9, the protrusion 28 protrudes from the end of the housing 20 in the −Z direction (image side) toward the outer circumference. Therefore, the protrusion 28 is arranged at the end of the housing 20 closest to the substrate 25. The protrusions 28 are formed on two side surfaces (a first side surface 21 and a second side surface 22) facing opposite sides of the housing 20 with the Z axis (optical axis L) in between. At the end of the first side surface 21 in the -Z direction, protrusions 28 that protrude in the +X direction are formed at two locations spaced apart in the Y direction. Further, at the end of the second side surface 22 in the -Z direction, protrusions 28 that protrude in the -X direction are formed at two locations spaced apart in the Y direction. On the other hand, in the holder 30, two first recesses 391 are formed in each of the first frame part 31 located in the +X direction of the housing 20 and the second frame part 32 located in the -X direction of the housing 20. . Furthermore, second recesses 392 are formed in the fourth frame portion 34 located in the -Y direction of the housing 20 at two locations spaced apart in the X direction.

FIG. 10 is a sectional view (a sectional view taken along the line BB in FIG. 7) of the optical unit 1 with a shake correction function shown in FIG. The holder 30 is provided with a position regulating section 393 that regulates movement of the optical module 2 in the +Z direction (towards the subject). The position regulating portion 393 is the bottom surface of the first recess 391 . When assembling the movable body 3, the housing 20 is inserted into the holder 30 from the -Z direction (image side). At this time, as shown in FIG. 10, the housing 20 is inserted to a position where the protruding part 28 contacts the position regulating part 393 (bottom surface of the first recess 391) from the -Z direction (image side). Thereby, the optical module 2 is positioned with respect to the holder 30 in the Z-axis (optical axis L) direction. In this way, the movable body 3 is assembled using the protrusion 28 as a reference for positioning the optical module 2 in the optical axis L direction.

(Bottom shape of case)
As shown in FIGS. 2 and 9, the case 50 includes an overhanging portion 50C that overhangs toward the inner peripheral side from the −Z direction side (image side) end of the outer frame portion 50A that surrounds the outer peripheral side of the holder 30. As shown in FIGS. The overhanging portion 50C overhangs toward the inner circumferential side from the first frame portion 501, the second frame portion 502, and the fourth frame portion 504 of the outer frame portion 50A. A substantially rectangular opening 50D is formed on the inner peripheral side of the overhanging portion 50C. A notch 508 for pulling out the first flexible printed circuit board 7 is formed in the third frame 503 located in the +Y direction of the opening 50D. Therefore, the opening 50D is continuous with the space inside the wiring housing section 50B.

As shown in FIGS. 7 and 8(a), the inner peripheral edge of the holder 30 is smaller than the opening 50D. Therefore, when the case 50 and the holder 30 are viewed from the optical axis L direction, the inner peripheral edge of the holder 30 is located on the inner peripheral side of the opening 50D. On the other hand, the outer peripheral portion of the holder 30 is located on the outer peripheral side of the opening 50D. Therefore, the projecting portion 50C includes a stopper portion 55 that overlaps the holder 30 when viewed from the optical axis L direction. The stopper portion 55 is a portion on the inner circumferential side of the outer circumferential surface of the holder 30, which is indicated by a dashed line in FIG. Since the case 50 includes the stopper portion 55, the movable body 3 is prevented from jumping out from the case 50 in the -Z direction.

The opening 50D is closed by a second cover 52 fixed to the end of the case 50 in the −Z direction. The second cover 52 is locked to the case 50 by the above-described locking structure of the elastic engagement part 58 of the second cover 52 and the claw part 59 of the case 50, and is also fixed to the projecting part 50C with an adhesive. Therefore, the overhang portion 50C is reinforced by the second cover 52. The adhesive is applied at least to the stopper portion 55 with which the movable body 3 may collide. Thereby, when the movable body 3 collides with the stopper part 55 due to the impact of falling, etc., the possibility that the stopper part 55 will break and the overhanging part 50C will be damaged is reduced. In the first embodiment, the second cover 52 is fixed by applying adhesive to the entire area of the projecting portion 50C, and the entire bottom of the case 50 is reinforced by the second cover 52.

As shown in FIG. 10, the thickness of the overhanging portion 50C in the optical axis L direction is T1, and the second cover 5
When the thickness of 2 in the optical axis L direction is T2, T2 is smaller than T1. Since the second cover 52 is made of metal, it has high rigidity even if the plate thickness is reduced. For example, when the second cover 52 is made of metal, the minimum thickness is 0.1 mm. On the other hand, the case 50 is a resin component, and the minimum moldable thickness is 0.3 mm. Therefore, when reinforcing the overhanging portion 50C, it is better to fix the metal second cover 52 in the direction of the optical axis L of the reinforced portion than when reinforcing the overhanging portion 50C made of resin by increasing its thickness. The thickness can be reduced. Therefore, an increase in the height of the optical unit 1 with a shake correction function in the direction of the optical axis L due to reinforcement can be suppressed.

As shown in FIGS. 7 to 9, a notch 56 that is recessed toward the outer periphery is formed on the inner peripheral edge of the overhanging portion 50C. The notch 56 includes a first notch 561 that is cut out in a shape that surrounds the outer circumferential side of the first recess 391 of the holder 30 when viewed from the Z-axis (optical axis L) direction, and ) is provided with a second notch 562 that is cut out in a shape that surrounds the outer circumferential side of the second recess 392 of the holder 30 when viewed from the direction. The first notches 561 are formed at two locations each on the inner circumferential edge on the +X direction side and the inner circumferential edge on the −X direction side of the overhanging portion 50C. Further, the second notch portion 562 is formed at the inner peripheral edge of the overhang portion 50C on the −Y direction side.

As shown in FIG. 7, the first recess 391 and the second recess 392 formed in the holder 30 are located on the inner peripheral side of the protruding portion 50C when viewed from the optical axis L direction. More specifically, the first notch 561 has a width in the Y-axis direction larger than that of the first recess 391 and a depth in the X-axis direction than the first recess 391 . Therefore, when viewed from the optical axis L direction, the inner peripheral edge of the first notch 561 is shaped to surround the outer peripheral side of the first recess 391, and the first recess 391 is placed inside. Similarly, the second notch 562 has a width in the X-axis direction larger than that of the second recess 392 and a depth in the Y-axis direction more than the second recess 392 . Therefore, when viewed from the optical axis L direction, the inner peripheral edge of the second notch 562 is shaped to surround the outer peripheral side of the second recess 392; placed inside.

When assembling the optical unit 1 with a shake correction function, the holder 30 is placed inside the case 50, and the gimbal mechanism 4 and the shake correction drive mechanism 6 are assembled between the case 50 and the holder 30. Thereafter, the optical module 2 is inserted and fixed into the holder 30 placed inside the case 50 from the -Z direction side (image side). After that, the second cover 52 is fixed to the case 50 to close the opening 50D.

The optical module 2 is inserted into the case 50 from the side of the projecting portion 50C. As described above, since the protruding portion 28 of the optical module 2 is arranged on the inner peripheral side of the overhanging portion 50, the optical module 2 can be inserted into the inside of the holder 30 without interfering with the overhanging portion 50. In addition, since the first notch 561 is formed in the protruding portion 50C, when the optical module 2 is inserted into the holder 30, the protruding portion 28 passes through the first notch 561 and contacts the stopper portion 55. There is no interference with the protrusion 28.

The optical module 2 is fixed to the holder 30 with an adhesive. When assembling the movable body 3, the first recess 391 and the second recess 392 of the holder 30 are used as adhesive reservoirs. At this time, the first notch 561 and the second notch 562 provided in the overhanging portion 50C are used as a window through which a syringe for applying adhesive passes. That is, when applying the adhesive to the first recess 391, an adhesive application syringe is passed through the first notch 561, and the tip of the syringe reaches the first recess 391, and the adhesive is applied. Furthermore, when applying the adhesive to the second recess 392, a syringe for applying adhesive is passed through the second notch 562, and the tip of the syringe reaches the second recess 392, and the adhesive is applied. Thereby, with the holder 30 assembled inside the case 50, the adhesive can be applied from the outside of the projecting portion 50C.

(Main effects of Embodiment 1)
As described above, the optical unit 1 with a shake correction function of the first embodiment supports the movable body 3 and the movable body 3 so as to be swingable around the first axis R1 intersecting the optical axis L, and The movable body 3 is supported via a gimbal mechanism 4, which is a swing support mechanism, to swing around a second axis R2 that intersects the optical axis L and the first axis R1, and a gimbal mechanism 4, which is a swing support mechanism. , and a shake correction drive mechanism 6 that swings the movable body 3 around a first axis R1 and a second axis R2. The fixed body 5 includes a case 50 that includes an outer frame portion 50A that surrounds the outer circumferential side of the movable body 3, and a projecting portion 50C that extends from the image-side end of the outer frame portion 50A in the direction of the optical axis L toward the inner circumferential side. A second cover 52 is provided that is fixed to the case 50 from the image side in the optical axis L direction and closes an opening 50D provided on the inner peripheral side of the overhanging portion 50C. The projecting portion 50C includes a stopper portion 55 that overlaps the movable body 3 when viewed from the optical axis L direction, and at least a region including the stopper portion 55 is bonded to the second cover 52.

As described above, in the first embodiment, the fixed body 5 includes the case 50 that houses the movable body 3, and the second cover 52 fixed to the bottom of the case 50 (the end on the image side in the optical axis L direction). The bottom of the case 50 is provided with an overhang portion 50C that overhangs toward the inner circumference. The area including the second cover 52 is adhered to the second cover 52. By bonding the second cover 52 to the stopper part 55 in this way, the stopper part 55 can be reinforced. Therefore, it is possible to reduce the possibility that the stopper portion 55 is damaged and the overhanging portion 50C is damaged due to impact caused by dropping or the like. Therefore, the impact resistance of the optical unit 1 with a shake correction function can be improved.

In the first embodiment, the entire area of the overhanging portion 50C is bonded to the second cover 52, so the entire overhanging portion 50C is reinforced, and the entire bottom surface of the case 50 is reinforced by the second cover 52. Therefore, compared to the case where only the stopper portion 55 is bonded to the second cover 52, the impact resistance of the optical unit 1 with a shake correction function can be further improved.

In the first embodiment, the thickness T2 of the second cover 52 in the optical axis L direction is smaller than the thickness T1 of the overhang portion 50C in the optical axis L direction. When the second cover 52 and the case 50 are made of different materials and a component made of a highly rigid material is used as the second cover 52, the reinforcing effect can be enhanced even if the second cover 52 is made thin. Therefore, compared to the case where the overhanging portion 50C is reinforced by increasing its thickness, an increase in the dimension in the optical axis L direction can be suppressed. Therefore, it is advantageous to reduce the thickness of the optical unit with a shake correction function.

In the first embodiment, the case 50 is a resin part, and the second cover 52 is a metal part. By making the case 50 a resin component, a complex shape can be integrally formed. Therefore, the number of parts can be reduced. Further, even if the second cover 52 is thin, the reinforcing effect is high. Therefore, an increase in the dimension of the fixed body 5 in the optical axis L direction can be suppressed more than in the case where the rigidity is increased by increasing the thickness of the overhanging portion 50C. Therefore, it is advantageous to reduce the thickness of the optical unit with a shake correction function.

In the first embodiment, the gimbal mechanism 4 includes a gimbal frame 9 that connects the movable body 3 and the fixed body 5. A second fulcrum portion 42 that makes point contact with the gimbal frame 9 is provided at a diagonal position of the case 50 in the second axis R2 direction. Further, the shake correction drive mechanism 6 includes a coil arranged in a coil arrangement hole 54 provided in the case 50 and a magnet fixed to the movable body 3. By making the case 50 a resin component, complex shapes such as the second fulcrum part 42 of the gimbal mechanism 4 and the coil arrangement hole 54 can be formed integrally with the case 50. This allows the number of parts to be reduced and the effort required during assembly to be reduced.

In the first embodiment, the movable body 3 includes an optical module 2 and a frame-shaped holder 30 surrounding the outer circumferential side of the optical module 2. The optical module 2 is provided with a protrusion 28 that protrudes toward the outer circumference, and the holder 30 includes a position regulating portion 393 that the protrusion 28 abuts from the image side in the optical axis L direction. The case 50 includes a first notch 561 that is formed by cutting the inner circumferential edge of the protruding portion 50C toward the outer circumferential side, and the protruding portion 28 and the position regulating portion 393 are arranged in the first notch 561 when viewed from the optical axis L direction. Located inside. In this way, the protrusion 28 becomes the positioning reference of the optical module 2 in the direction of the optical axis L, so that the positioning reference can be placed at a position different from the top surface of the optical module 2. Therefore, the positioning reference of the optical module 2 can be brought closer to the center of rotation of the movable body 3, and variations in the position of the center of gravity of the movable body 3 can be reduced. Furthermore, although the optical module 2 is provided with the protrusion 28 that serves as a positioning reference, when the optical module 2 is assembled to the holder 30 from the bottom side of the case 50, the positioning reference (protrusion 28) is attached to the protrusion 50C. can avoid interfering with Therefore, after assembling the gimbal mechanism 4 and the shake correction drive mechanism 6 between the case 50 and the holder 30, the optical module 2 is inserted from the bottom side of the case 50 and fixed to the holder 30. The attached optical unit 1 can be assembled.

In the first embodiment, the inner peripheral edge of the holder 30 is provided with a first recess 391 that is recessed toward the subject in the optical axis L direction. The first recess 391 is located inside the first notch 561 when viewed from the optical axis L direction, and the position regulating portion 393 is the bottom surface of the first recess 391 . Further, the first recess 391 is an adhesive reservoir in which an adhesive for fixing the optical module 2 to the holder 30 is placed. In this way, the first notch 561 for preventing the protrusion 28 from interfering with the overhang 50C can be used as a window through which a syringe for applying adhesive passes. Therefore, the adhesive can be applied to the first recess 391 from the outside of the case 50. Further, since the position regulating portion 393 and the adhesive reservoir can be arranged at the same position, it is possible to avoid complicating the shape of the component.

[Embodiment 2]
FIG. 11 is an exploded perspective view of an optical unit 100 with a shake correction function according to a second embodiment of the present invention, viewed from the subject side. FIG. 12 is a perspective view of the optical unit 100 with shake correction function according to the second embodiment with the second cover 120 removed, as seen from the image side, and a partially enlarged view thereof. FIG. 13 is a cross-sectional view and a partially enlarged view of the optical unit 100 with a shake correction function according to the second embodiment. Hereinafter, components having the same functions as those of the first embodiment will be denoted by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIGS. 11 and 13, the optical unit 100 with a shake correction function according to the second embodiment includes a movable body 3 on which an optical module 2 equipped with an optical element such as a lens is mounted, and a movable body 3 that can swing. a fixed body 105 that supports the movable body 3 via the gimbal mechanism 4; a shake correction drive mechanism 6 that swings the movable body 3 relative to the fixed body 105; It includes a first flexible printed circuit board 7 to be connected and a second flexible printed circuit board 8 attached to a fixed body 105.

The movable body 3 is supported by a gimbal mechanism 4 so as to be swingable around a first axis R1 that is orthogonal to the optical axis L (Z-axis), and is supported around a second axis R2 that is orthogonal to the optical axis L and the first axis R1. It is supported so that it can swing around. The first axis R1 and the second axis R2 are inclined at 45 degrees with respect to the X axis and the Y axis. By combining the rotation around the first axis R1 and the rotation around the second axis R2, the movable body 3 can swing around the X axis and the Y axis. Therefore, the movable body 3 is supported by the gimbal mechanism 4 so as to be swingable around the X-axis and the Y-axis. The gimbal mechanism 4 is configured similarly to the first embodiment.

The shake correction drive mechanism 6 includes a first magnetic drive mechanism 6X that rotates the movable body 3 around the X axis;
A second magnetic drive mechanism (not shown) that rotates the movable body 3 around the Y axis is provided. The shake correction drive mechanism 6 of the second embodiment is configured in the same manner as the first embodiment, except that the second magnetic drive mechanism (not shown) is arranged in the −X direction of the movable body 3 instead of in the +X direction. ing.

As shown in FIG. 13, the movable body 3 includes an optical module 2 and a holder 30 that holds the optical module 2. A magnet 61X of the first magnetic drive mechanism 6X and a magnet (not shown) of the second magnetic drive mechanism are fixed to the holder 30 via a yoke member 63. Further, a first fulcrum portion (omitted) of the gimbal mechanism 4 is configured at a diagonal position of the holder 30 in the first axis R1 direction. The optical module 2 includes a housing 20 that is rectangular when viewed from the optical axis L direction, a substrate 25 disposed at an end of the housing 20 in the −Z direction, and a cylindrical portion 26 protruding from the housing 20 in the +Z direction. The optical module 2 is a camera module that includes a lens group (optical element) held in a cylindrical portion 26, a lens drive mechanism (not shown) arranged inside the housing 20, and an image sensor.

As shown in FIGS. 11 and 13, the fixed body 105 includes a case 150, a first cover 110 and a second cover 120 fixed to the case 150, and a wiring cover 130. Similar to the first embodiment, the case 150 is made of resin, and the first cover 110, second cover 120, and wiring cover 130 are made of nonmagnetic metal. Elastic engagement portions 58 are provided on the outer peripheral edges of the first cover 110 and the second cover 120. Further, a claw portion 59 is provided on the outer peripheral surface of the case 150. The elastic engagement portion 58 engages with the claw portion 59 .

The case 150 includes an outer frame portion 150A that surrounds the outer peripheral side of the movable body 3, a wiring accommodating portion 150B that protrudes in the +Y direction from the −Z direction side of the outer frame portion 150A, and a −Z direction side of the outer frame portion 150A. An overhanging portion 150C is provided that overhangs from the (image side) end toward the inner peripheral side. The first cover 110 is fixed to the +Z direction end of the outer frame portion 150A. Further, the wiring cover 130 is fixed to the +Z direction end of the wiring housing portion 150B.

As shown in FIG. 11, the second cover 120 includes a bottom cover 120A fixed to the -Z direction end of the case 150, and a sealing cover that closes an octagonal inner opening 121 formed in the bottom cover 120A. 120B. The bottom cover 120A includes a first cover part 122 fixed to the -Z direction end of the outer frame part 150A, and a second cover part 123 fixed to the -Z direction end of the wiring accommodating part 150B. A first side plate portion 124 rising in the +Z direction is formed at the edge of the second cover portion 123 in the +Y direction. Further, a second side plate portion 125 rising in the +Z direction is formed at the edge of the second cover portion 123 in the −X direction.

As shown in FIG. 12, the outer frame portion 150A of the case 150 includes a first frame portion 551 and a second frame portion 552 that extend in parallel to the Y-axis direction on the +X direction side and the −X direction side of the movable body 3, and a movable A third frame part 553 and a fourth frame part 554 are provided on the +Y direction side and the -Y direction side of the body 3, which extend in parallel to the X-axis direction. The wiring housing section 150B includes a fifth frame section 555 and a sixth frame section 556 extending in parallel to the +Y direction from the -Z direction ends of the first frame section 551 and the second frame section 552, and a fifth frame section 555 and a sixth frame section 556. The upper plate part 557 (see FIG. 13) is connected to the +Z direction end of the sixth frame part 556 and covers the first flexible printed circuit board 7.

As shown in FIG. 11, in the second embodiment, the second flexible printed circuit board 8 is routed along the side surface in the −Y direction and the outer peripheral surface in the −X direction of the outer frame portion 150A of the fixed body 105. As shown in FIG. 13, the second flexible printed circuit board 8 holds a coil 62X of the first magnetic drive mechanism 6X and a coil (not shown) of the second magnetic drive mechanism. A magnetic plate 64 and a magnetic sensor 65 are fixed to the second flexible printed circuit board 8 . The second flexible printed circuit board 8 is connected to a terminal portion arranged on the upper surface of the wiring housing portion 150B. Further, the first flexible printed circuit board 7 of the second embodiment is pulled out from the movable body 3 in the +Y direction, passes through the notch 558 formed in the third frame portion 553 of the case 150, and passes inside the wiring housing portion 150B. After being bent into a U-shape multiple times and fixed to the upper plate part 557 of the wiring housing part 150B, it is pulled out from the wiring housing part 150B in the -Z direction.

As shown in FIG. 12, the case 150 of the second embodiment is formed with a penetrating portion 559 that penetrates a diagonal position in the second axis R2 direction of the outer frame portion 150A in the Z-axis direction (optical axis L direction). There is. The second fulcrum portion 42 of the gimbal mechanism 4 is arranged in the penetrating portion 559 . In the second embodiment, the inner surface of the corner where the first frame section 551 and the fourth frame section 554 are connected, and the inner surface of the corner section where the second frame section 552 and the third frame section 553 are connected are provided at two locations, respectively. , a second fulcrum portion 42 is arranged. The second fulcrum portion 42 includes a recess (not shown) recessed radially outward, and a second thrust receiving member (not shown) disposed in the recess. The configurations of the second thrust receiving member and the recess are the same as in the first embodiment.

(Bottom shape of case)
As shown in FIGS. 12 and 13, the case 150 includes an overhanging portion 150C that overhangs inward from the -Z direction side (image side) end of the outer frame portion 150A. A substantially rectangular opening 150D is formed on the inner peripheral side of the projecting portion 150C. The projecting portion 150C includes a stopper portion 155 that overlaps the holder 30 when viewed from the optical axis L direction. Since the case 150 includes the stopper portion 155 as in the first embodiment, the movable body 3 is prevented from protruding from the case 150 in the −Z direction.

As shown in FIG. 12, a notch 156 recessed toward the outer periphery is formed on the inner peripheral edge of the overhanging portion 150C. In the second embodiment, two notches 156 are formed at the edge of the overhang 150C located in the +X direction of the opening 150D and at the edge of the overhang 150C located in the −X direction of the opening 150D. ing. Similarly to Embodiment 1, when inserting the optical module 2 into the holder 30 disposed inside the case 150 from the side of the protruding portion 150C, a positioning protrusion (not shown) formed on the optical module 2 is inserted. ) passes through the notch 156.

The opening 150D of the case 150 is closed by the second cover 120 fixed to the end of the case 150 in the −Z direction. As described above, the second cover 120 is composed of two members: the bottom cover 120A and the sealing cover 120B. The bottom cover 120A is locked to the case 150 by a locking structure formed by an elastic engagement part 58 provided on the outer peripheral edge and a claw part 59 of the case 150, and is also fixed to the case 150 by an adhesive. Moreover, the sealing cover 120B is fixed to the bottom cover 120A by adhesive. Note that the sealing cover 120B can also be fixed to the bottom cover 120A by welding.

By adhering the second cover 120 to the case 150, the projecting portion 150C of the case 150 is reinforced by the second cover 52. Therefore, when the movable body 3 collides with the stopper part 155 due to an impact when falling, etc., it is possible to reduce the possibility that the stopper part 155 will break and the overhanging part 150C will be damaged.

(Shape of case end face)
In the second embodiment, the -Z direction end of the case 150 to which the bottom cover 120A is bonded has a stepped surface. The end of the case 150 in the -Z direction includes a flat case end face 550 that faces the first cover 110 in the Z-axis direction (optical axis L direction), and a rectangular convex portion 600 that protrudes from the case end face 550 in the -Z direction. Equipped with One protrusion 600 is formed at the end of the first frame 551 of the case 150 in the -Z direction. Furthermore, two convex portions 600 are formed at the end of the second frame portion 552 of the case 150 in the −Z direction, and two convex portions 600 are formed at the end of the fourth frame portion 554 of the case 150 in the −Z direction. A convex portion 600 is formed. The five protrusions 600 have the same shape, and have a constant protrusion dimension from the case end surface 550. Further, all of the five convex portions 600 extend to the outer peripheral edge of the case end face 550.

When applying an adhesive to the end of the case 150 in the −Z direction and bonding the bottom cover 120A, the first cover portion 122 of the bottom cover 120A comes into contact with the tip of the convex portion 600. As a result, as shown in the enlarged view of FIG. 13, a gap is secured between the case end surface 550 and the first cover portion 122, which are recessed one step with respect to the convex portion 600. An adhesive layer 127 can be formed between the first cover portion 122 and the first cover portion 122 . Note that when performing the bonding process, adhesive is also applied to the tip surface of the convex portion 600. Therefore, a thin adhesive layer (not shown) is formed between the tip surface of the convex portion 600 and the first cover portion 122. Note that the tip surface of the protrusion 600 and the first cover portion 122 may be in contact without applying adhesive to the tip surface of the protrusion 600.

A plurality of circular recesses 601 recessed in the +Z direction are formed in the case end surface 550. The recesses 601 are formed at diagonal positions of the case end surface 550 in the first axis R1 direction. Penetration portions 559 are opened at diagonal positions in the second axis R2 direction of the case end surface 550, and recesses 601 are formed between each penetration portion 559 and the adjacent convex portions 600 in the X-axis direction or the Y-axis direction. are formed in one location at a time. Therefore, if too much adhesive is applied around the penetration portion 559, the excess adhesive will be accommodated in the recess 601.

As shown in FIG. 11, the bottom cover 120A includes an inner opening 121 formed in the first cover portion 122 fixed to the case end surface 550, and an adhesive leakage prevention wall rising from the edge of the inner opening 121 in the +Z direction. 126. In the second embodiment, an adhesive leakage prevention wall 126 is formed along the entire circumference of the inner opening 121. Further, the protrusion dimension of the adhesive leakage prevention wall 126 from the case end surface 550 is larger than the protrusion dimension of the convex portion 600. The inner opening 121 is arranged on the inner peripheral side of the opening 150D of the case 150 when viewed from the optical axis L direction. Therefore, when the bottom cover 120A is fixed to the case end face 550, the adhesive leakage prevention wall 126 is inserted into the inner circumferential side of the projecting portion 150C of the case. As a result, as shown in the enlarged view of FIG. 13, the adhesive leakage prevention wall 126 is arranged on the case end face 550 and the inner peripheral side of the first cover portion 122.

(Main effects of Embodiment 2)
As described above, in the optical unit 100 with a shake correction function according to the second embodiment, the fixed body 105 includes the outer frame portion 150A surrounding the outer peripheral side of the movable body 3, and the image side of the outer frame portion 150A in the optical axis L direction. A case 150 is provided with an overhanging portion 150C that overhangs toward the inner circumferential side from the end of the case 150, and a case 150 is fixed to the case 150 from the image side in the direction of the optical axis L to close an opening 150D provided on the inner circumferential side of the overhanging portion 150C. A second cover 120 is provided. The projecting portion 150C includes a stopper portion 155 that overlaps the movable body 3 when viewed from the optical axis L direction, and a region including at least the stopper portion 155 is bonded to the second cover 120. Therefore, as in the first embodiment, the stopper part 155 can be reinforced, so it is possible to reduce the risk that the stopper part 155 will be damaged and the overhanging part 155C will be damaged due to an impact caused by a fall or the like. Therefore, the impact resistance of the optical unit 100 with shake correction function can be improved.

Further, as in the first embodiment, since the entire area of the overhanging portion 150C is bonded to the second cover 120, the entire overhanging portion 150C is reinforced, and the entire bottom surface of the case 150 is reinforced by the second cover 120. ing. Therefore, compared to the case where only the stopper portion 155 is bonded to the second cover 120, the impact resistance of the optical unit 100 with a shake correction function can be further improved.

In the second embodiment, the outer frame portion 150A of the case 150 includes a case end surface 550 facing the second cover 120 in the optical axis L direction, and a convex portion 600 protruding from the case end surface 550. is fixed to the case 150 by an adhesive layer 127 formed between the case end surface 500 and the second cover 120. In the second embodiment, by providing the convex portion 600 on the second cover 120, an appropriate gap can be secured between the case end surface 550 and the second cover 120. Therefore, the adhesive layer 127 can be formed between the case end surface 550 and the second cover 120, and a bonding area can be secured.

In the first embodiment, the part where the case 150 and the second cover 120 are bonded has a structure in which flat surfaces are bonded to each other, so if any warpage occurs in either part, the gap becomes too large and the adhesive layer needs to be bonded. There is a possibility that some parts cannot be formed. As a result, since only a part of the area to be bonded can be bonded, rigidity may not be ensured. In the second embodiment, since the convex portion 600 is formed in advance on the case end face 550 to give it a stepped shape, if warpage occurs in either the case 150 or the bottom cover 120A, which is a component of the second cover 120. Also, it is possible to prevent the gap from becoming too large. Therefore, since there is little possibility that the bonding area cannot be secured, there is little possibility that rigidity cannot be secured. Therefore, the impact resistance of the optical unit 100 with shake correction function can be improved.

In the second embodiment, since the convex portion 600 extends to the outer peripheral edge of the case end surface 550, the structure of the mold used when molding the convex portion 600 on the case end surface 550 can be simplified. Note that the convex portion 600 may extend to the inner peripheral edge of the case end face 550.

The second cover 120 of the second embodiment includes a bottom cover 120A that is adhered to a case end surface 550, and a sealing cover 120B that closes an inner opening 121 formed in the bottom cover 120A. The inner opening 121 is arranged on the inner peripheral side of the opening 150D when viewed from the optical axis L direction, and the bottom cover 120A includes an adhesive leakage prevention wall 126 rising from the edge of the inner opening 121 toward the case 150. . Therefore, when the adhesive applied between the case 150 and the bottom cover 120A protrudes from the edge of the opening 150D of the case 150, leakage of the adhesive can be prevented. Therefore, even if a large amount of adhesive is applied to secure the adhesive area, leakage of the adhesive can be suppressed.

The case 150 of the second embodiment has a first frame part 551 and a second frame part 552 facing each other in the X-axis direction (first direction) orthogonal to the optical axis L with the movable body 3 in between, and A third frame portion 553 and a fourth frame portion 554 are provided that face each other in the Y-axis direction (second direction) that is orthogonal to the optical axis L and orthogonal to the X-axis direction (first direction). The third frame portion 553 includes a cutout portion 558 through which the first flexible printed circuit board 7 connected to the movable body 3 passes, and the convex portion 600 At least one location is provided on each of the three sides of the four frame portions 554. In the second embodiment, the number of convex portions 600 provided on each side is one or two, but the number may be three or more. In this way, by forming the convex portions on all three sides surrounding the opening 150D of the case 150, the gap between the case end face 550 and the second cover 120 becomes too large on all three sides, which prevents the adhesive layer from forming. It is possible to reduce the possibility that the formation will not be possible. Therefore, since there is little possibility that the bonding area cannot be secured, there is little possibility that rigidity cannot be secured.

The case 150 of the second embodiment includes a penetration part 559 that penetrates in the optical axis L direction at a diagonal position in the second axis R2 direction, and the case end surface 550 has a recess located between the penetration part 559 and the convex part 600. 601. Therefore, if an excessive amount of adhesive is applied between the penetrating portion 559 and the convex portion 600, the excess adhesive can be accommodated in the recessed portion 601. Therefore, since the adhesive can be prevented from leaking from the penetrating portion 559, it is possible to prevent the adhesive from adhering to the second fulcrum portion 42 disposed in the penetrating portion 559 and hindering the movement of the gimbal mechanism 4.

DESCRIPTION OF SYMBOLS 1, 100... Optical unit with shake correction function, 2... Optical module, 2A... Lens group, 3... Movable body, 4... Gimbal mechanism, 5, 105... Fixed body, 6... Drive mechanism for shake correction, 6X... First Magnetic drive mechanism, 6Y... Second magnetic drive mechanism, 7... First flexible printed circuit board, 8... Second flexible printed circuit board, 9... Gimbal frame, 20... Housing, 21... First side surface, 22... Second side surface, 23 ...Third side surface, 24...Fourth side surface, 25...Substrate, 26...Cylinder part, 27...Lens drive mechanism, 28...Protrusion part, 30...Holder, 31...First frame part, 32...Second frame part, 33 ...Third frame part, 34...Fourth frame part, 35...Notch part, 36...Convex part, 37...Recessed part for magnet placement, 38...Corner part, 39...Recessed part, 41...First fulcrum part, 42...First 2 fulcrum part, 43... recessed part, 44... first thrust receiving member, 45... recessed part, 46... second thrust receiving member, 50... case, 50A... outer frame part, 50B... wiring accommodation part, 50C... overhanging part, 50D ...Opening part, 51...First cover, 52...Second cover, 53...Wiring cover, 54...Coil placement hole, 55...Stopper part, 56...Notch part, 57...Abutting part, 58...Elastic engagement part , 59...claw portion, 61X, 61Y...magnet, 62X, 62Y...coil, 63...yoke member, 64...magnetic plate, 65...magnetic sensor, 70...flexible substrate, 71...first folded portion, 72...th 2 folded portion, 73...Third folded portion, 74...Fixed portion, 75...Reinforcement plate, 81...First board part, 82...Second board part, 90...Central hole, 91...First frame part, 92...No. 2 frame portion, 93... Extension part for first support part, 94... Extension part for second support part, 110... First cover, 120... Second cover, 120A... Bottom cover, 120B... Sealing cover, 121 ...Inner opening, 122...First cover part, 123...Second cover part, 124...First side plate part, 125...Second side plate part, 126...Adhesive leak prevention wall, 127...Adhesive layer, 130...Wiring Cover, 150...Case, 150A...Outer frame part, 150B...Wiring accommodating part, 150C...Protrusion part, 150D...Opening part, 155...Stopper part, 156...Notch part, 391...First recessed part, 392... Second recessed part , 393... Position regulating part, 441... First plate part, 442... Second plate part, 443... Through hole, 444... Sphere, 461... First plate part, 462... Second plate part, 463... Through hole, 464 ... Sphere, 501... First frame, 502... Second frame, 503... Third frame, 504... Fourth frame, 505... Fifth frame, 506... Sixth frame, 507... Seventh frame part, 508...notch part, 510...opening part, 511, 512...notch part, 531...notch part, 550...case end face, 551...first frame part, 551C...first projecting part, 552...second part Frame portion, 552C...Second overhang portion, 553...Third frame portion, 554...Fourth frame portion, 554C...Fourth overhang portion, 555...Fifth frame portion, 556...Sixth frame portion, 557...Top plate portion , 558...notch part, 559...penetrating part, 561...first notch part, 562...second notch part, 600...convex part, 601...recessed part, 901...first support part, 902...second support part , 910... Rectangular part, 911... Central part, 912... Corner part, 913... First protruding part, 914... Second protruding part, 941... First part, 942... Second part, 943... Third part, L... Optical axis, R1...first axis, R2...second axis, S...gap, T1...thickness of overhang, T2...thickness of second cover

Claims (12)

A movable body,
Rocking that supports the movable body so as to be rockable around a first axis that intersects with the optical axis, and that supports the movable body so that it can swing around a second axis that intersects with the optical axis and the first axis. a support mechanism;
a fixed body that supports the movable body via the swing support mechanism;
a shake correction drive mechanism that swings the movable body around the first axis and around the second axis;
The fixed body is
a case including an outer frame portion surrounding an outer circumferential side of the movable body; and an overhanging portion extending from an image-side end in the optical axis direction of the outer frame portion toward the inner circumferential side;
comprising a cover fixed to the case from the image side in the optical axis direction and closing an opening provided on the inner circumferential side of the projecting portion;
The projecting portion includes a stopper portion that overlaps the movable body when viewed from the optical axis direction,
An optical unit with a shake correction function, wherein the projecting portion includes at least a region including the stopper portion that is bonded to the cover. 2. The optical unit with a shake correction function according to claim 1, wherein the entire area of the projecting portion is bonded to the cover. 3. The optical unit with a shake correction function according to claim 1, wherein the thickness of the cover in the optical axis direction is smaller than the thickness of the projecting portion in the optical axis direction. The case is a resin part,
4. The optical unit with shake correction function according to claim 3, wherein the cover is a metal part. The swing support mechanism includes a gimbal frame that connects the movable body and the fixed body,
A second fulcrum part that makes point contact with the gimbal frame is provided at a diagonal position in the second axis direction of the case,
The shake correction function according to claim 4, wherein the shake correction drive mechanism includes a coil arranged in a coil arrangement hole provided in the case, and a magnet fixed to the movable body. Optical unit with. The movable body includes an optical module and a holder surrounding an outer peripheral side of the optical module,
The optical module is provided with a protrusion that protrudes toward the outer circumference,
The holder includes a position regulating part that the protruding part abuts from the image side in the optical axis direction,
The case includes a notch portion formed by cutting an inner circumferential edge of the projecting portion toward an outer circumferential side,
The optical unit with a shake correction function according to any one of claims 1 to 5, wherein the protruding portion and the position regulating portion are located inside the notch when viewed from the optical axis direction. . A recessed portion recessed toward the subject in the optical axis direction is provided on the inner peripheral edge of the holder,
The recess is located inside the notch when viewed from the optical axis direction, and the position regulating portion is a bottom surface of the recess,
7. The optical unit with shake correction function according to claim 6, wherein the recess is an adhesive reservoir in which an adhesive for fixing the optical module to the holder is placed. The case includes a case end face facing the cover in the optical axis direction, and a convex portion protruding from the case end face,
The optical system with a shake correction function according to any one of claims 1 to 7, wherein the cover is fixed to the case by an adhesive layer formed between the case end face and the cover. unit. 9. The optical unit with a shake correction function according to claim 8, wherein the convex portion extends to an edge of the end surface of the case. The cover includes a bottom cover fixed to the end surface of the case;
a sealing cover that closes an inner opening formed in the bottom cover,
The inner opening is arranged on the inner peripheral side of the opening when viewed from the optical axis direction,
10. The optical unit with a shake correction function according to claim 8, wherein the bottom cover includes an adhesive leakage prevention wall rising from an edge of the inner opening toward the case. The case includes a first frame portion and a second frame portion facing each other in a first direction orthogonal to the optical axis with the movable body in between, and a first frame portion and a second frame portion facing each other in a first direction that is orthogonal to the optical axis with the movable body in between. A third frame portion and a fourth frame portion facing each other in a second direction perpendicular to the
The third frame portion includes a cutout portion through which a flexible printed circuit board connected to the movable body is passed,
11. The convex portion is provided at least once in each of the first frame, the second frame, and the fourth frame, according to any one of claims 8 to 10. Optical unit with shake correction function as described. The case includes a penetration portion that penetrates a diagonal position in the second axis direction in the optical axis direction,
The optical unit with a shake correction function according to any one of claims 8 to 11, wherein the case end face includes a recess located between the penetrating portion and the convex portion.

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