JP2015082072A - Optical unit with rolling correction function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical unit with a rolling correction function that facilitates a correction in each direction even when performing a rolling correction, in addition to pitching or yawing.SOLUTION: An optical unit 300 is configured to have a securing body 60 around an optical module 10 holding a lens 1a. The optical module 10 is configured as a moving body 100, and inside the moving body 100, a second support mechanism 30 swingably supporting the optical module 10 and a swing magnetic drive mechanism 500 are configured. Outside the moving body 100, a first support mechanism 80 rotatably supporting the moving body 100 around an optical axis L, and a rolling magnetic drive mechanism 600 causing the moving body 100 to rotate around the optical axis L are configured. The first support mechanism 80 is configured to include a mechanical spring 85 causing a state where the moving body 100 is supported by the securing body 60 with elasticity.

Description

  The present invention relates to an optical unit with a shake correction function mounted on a camera-equipped mobile phone or the like.

  A mobile phone or a mobile terminal is configured as an optical device on which an optical unit for photographing is mounted. In such an optical unit, a configuration has been proposed in which shake is corrected by swinging the optical module in order to suppress disturbance of a captured image due to camera shake. In order to perform such shake correction, the optical module is supported in a swingable manner with respect to the support, and the optical module is pitched corresponding to pitching (pitch: tilting) and yawing (roll: panning). Techniques for correcting shake by swinging in the direction and yawing direction have been proposed (see Patent Documents 1 and 2).

  Further, a technique for correcting a shake (rolling) around the optical axis of the optical module has been proposed (see, for example, Patent Document 3). In the optical unit described in Patent Document 3, the panning drive coil and the rolling drive coil are integrated or adjacent with a common yoke, and the tilting drive coil and the rolling drive coil are integrated or adjacent with a common yoke. is there.

JP 2010-96805 A JP 2010-96863 A 7 and 12 of International Publication WO2010 / 010712

  However, as in the configuration described in Patent Document 3, the panning drive coil and the rolling drive coil are integrated or adjacent with a common yoke, and the tilting drive coil and the rolling drive coil are integrated or adjacent with a common yoke. In this case, there is a problem that the control becomes extremely complicated because magnetic interference occurs during correction in each direction.

  In view of the above problems, an object of the present invention is to provide an optical unit with a shake correction function that can easily correct in each direction even when rolling correction is performed in addition to pitching and yawing.

  In order to solve the above problems, an optical unit with a shake correction function according to the present invention includes an optical module that holds an optical element, a fixed body, and a swinging magnetic drive that swings the optical module with respect to the fixed body. A rolling mechanism for rotating the optical module around the optical axis, a first support mechanism that supports the optical module so as to be rotatable around the optical axis, and a magnetic drive mechanism for swinging. And a magnetic drive mechanism, wherein the first support mechanism includes a mechanical spring that makes the optical module elastically supported by the fixed body.

  In the present invention, a swinging magnetic drive mechanism that swings the optical module according to the shake and a rolling magnetic drive mechanism that rotates the optical module around the optical axis according to the shake are provided separately from each other. Yes. For this reason, magnetic interference occurs between the oscillating magnetic drive mechanism and the rolling magnetic drive mechanism even when the rolling direction shake is corrected in addition to correcting the pitching direction and yawing direction. Hateful. Therefore, it is easy to control shake correction. In addition, since the first support mechanism that supports the optical module rotatably around the optical axis has a mechanical spring, when the operation of the magnetic drive mechanism for rolling is stopped, the optical module is mechanically Since the biasing force of the spring is always held at the origin position, it is easy to control shake correction. In addition, when the rolling magnetic drive mechanism is actuated to rotate the optical module around the optical axis, the mechanical spring exerts a drag force, so the optical module is driven by the rolling magnetic drive mechanism and the mechanical spring. It rotates reliably to a position that balances with the drag. For this reason, the accuracy of correction in the rolling direction is high.

  In the present invention, the optical module, a support surrounding the optical module, and a second support mechanism in which the optical module is supported by the support so as to be swingable inside the support are provided. The movable magnetic drive mechanism swings the optical module with respect to the support in the movable body, and the rolling magnetic drive mechanism rotates the movable body around the optical axis. By rotating the optical module, the optical module is rotated around the optical axis, the first support mechanism rotatably supports the optical module around the optical axis via the support, and the mechanical spring is It is preferable to connect to the support and the fixed body. According to such a configuration, the pitching direction and the yawing direction are corrected inside the movable body, and the movable body is corrected in the rolling direction. For this reason, since the oscillating magnetic drive mechanism and the rolling magnetic drive mechanism are arranged in different spaces, magnetic interference hardly occurs between the oscillating magnetic drive mechanism and the rolling magnetic drive mechanism.

  In the present invention, it is preferable that the first support mechanism includes a ball bearing disposed so as to surround the optical axis. According to this configuration, the movable body rotates smoothly around the axis of the ball bearing.

  In the present invention, the ball bearing is disposed on the rear side in the optical axis direction with respect to a portion of the movable body where the optical module and the rocking magnetic drive mechanism are disposed, and is orthogonal to the optical axis. When viewed from the direction, the rolling magnetic drive mechanism can be configured to be disposed at a position overlapping the portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed.

  In this case, it is preferable that the mechanical spring is disposed on the rear side in the optical axis direction with respect to the ball bearing.

  In the present invention, when viewed from a direction perpendicular to the optical axis, the ball bearing is disposed at a position overlapping the portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed, The rolling magnetic drive mechanism may adopt a configuration in which the movable body is disposed on the rear side in the optical axis direction with respect to the portion where the optical module and the rocking magnetic drive mechanism are disposed.

  In this case, the mechanical spring is between the rolling magnetic drive mechanism and the portion of the movable body where the optical module and the swinging magnetic drive mechanism are arranged in the direction in which the optical axis extends. It is preferable to arrange | position.

  In the present invention, the first support mechanism includes a pivot portion that rotatably supports the movable body around the optical axis on the rear side in the optical axis direction, and the ball bearing is disposed on the front side in the optical axis direction. You may employ | adopt the structure which is supporting the said movable body between the said pivot parts.

  In this case, it is preferable that the pivot portion is in contact with the movable body with elasticity.

  In this case, when viewed from a direction perpendicular to the optical axis, the rolling magnetic drive mechanism may overlap a portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed. preferable.

  Also in this case, it is preferable that the mechanical spring is disposed on the rear side in the optical axis direction with respect to a portion of the movable body where the optical module and the rocking magnetic drive mechanism are disposed.

  In the present invention, when viewed from a direction orthogonal to the optical axis, the first support mechanism includes a ball bearing disposed in an arc shape around the movable body at a position overlapping the movable body, The mechanical spring may employ a configuration in which the movable body is urged toward a side where the ball bearing is located in a direction orthogonal to the optical axis.

  In this case, the mechanical spring is a leaf spring, and an engagement protrusion that engages the center of the leaf spring in a direction perpendicular to the optical axis is formed at a position in contact with the leaf spring on the side surface of the movable body. It is preferable that

  In this case, the rolling magnetic drive mechanism is located at a position overlapping the portion of the movable body where the optical module and the oscillating magnetic drive mechanism are disposed when viewed from a direction orthogonal to the optical axis. Among these, it is preferable that the ball bearing is disposed on a side perpendicular to an imaginary line connecting the arc center of the ball bearing and the center of the mechanical spring.

  In the present invention, the first support mechanism may be configured such that the movable body can rotate around the first axis at two locations spaced apart from the intermediate support member in the extending direction of the first axis that obliquely intersects the optical axis. The intermediate support member is supported at two locations separated from each other in the extending direction of a first support portion that is supported by the intermediate support member and the second axis that obliquely intersects the optical axis and the first axis. You may employ | adopt the structure which has a 2nd support part made into the state supported by the said fixed body so that rotation around the said 2nd axis line was possible.

  In this case, when viewed from a direction orthogonal to the optical axis, the rolling magnetic drive mechanism is disposed at a position overlapping the portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed. It is preferable that

  Also in this case, it is preferable that the mechanical spring is disposed on the rear side in the optical axis direction with respect to a portion of the movable body where the optical module and the rocking magnetic drive mechanism are disposed.

  In the present invention, the first support mechanism rotatably supports the movable body around an axis extending along the optical axis at a position separated from the optical axis, and the magnetic driving mechanism for rolling includes the You may employ | adopt the structure which rotates the said movable body around an axis line, and rotates the said optical module to the surroundings of the said optical axis.

  In this case, it is preferable that a weight held by the movable body is provided on the side opposite to the side where the optical module is located with respect to the axis. According to such a configuration, the center of gravity of the movable body can be brought close to the position where the axis passes, so that the movable body can be smoothly rotated around the optical axis.

  In this case, the rolling magnetic drive mechanism overlaps with a portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed when viewed from a direction orthogonal to the optical axis. It is preferable to arrange | position.

  Also in this case, it is preferable that the mechanical spring is disposed on the rear side in the optical axis direction with respect to a portion of the movable body where the optical module and the rocking magnetic drive mechanism are disposed.

  In the present invention, in the rolling magnetic drive mechanism, a coil disposed on one side of the optical module side and the fixed body side, and a magnet that generates a magnetic field interlinking with the coil are provided on the optical axis. The structure which opposes in the direction orthogonal to is employable.

  In the present invention, in the rolling magnetic drive mechanism, a coil disposed on one side of the optical module side and the fixed body side, and a magnet that generates a magnetic field interlinking with the coil are provided on the optical axis. You may employ | adopt the structure which is facing in the direction in which the is extended.

  In the present invention, a swinging magnetic drive mechanism that swings the optical module according to the shake and a rolling magnetic drive mechanism that rotates the optical module around the optical axis according to the shake are provided separately from each other. ing. For this reason, magnetic interference occurs between the oscillating magnetic drive mechanism and the rolling magnetic drive mechanism even when the rolling direction shake is corrected in addition to correcting the pitching direction and yawing direction. Hateful. Therefore, it is easy to control shake correction. In addition, since the first support mechanism that supports the optical module rotatably around the optical axis has a mechanical spring, when the operation of the magnetic drive mechanism for rolling is stopped, the optical module is mechanically Since the biasing force of the spring is always held at the origin position, it is easy to control shake correction. In addition, when the rolling magnetic drive mechanism is actuated to rotate the optical module around the optical axis, the mechanical spring exerts a drag force, so the optical module is driven by the rolling magnetic drive mechanism and the mechanical spring. It rotates reliably to a position that balances with the drag. For this reason, the accuracy of correction in the rolling direction is high.

It is explanatory drawing which shows typically a mode that the optical unit with a shake correction function to which this invention is applied was mounted in optical apparatuses, such as a mobile telephone. It is a schematic block diagram of the optical unit which concerns on Embodiment 1 of this invention. It is a perspective view which shows an example of the specific structure of the optical unit which concerns on Embodiment 1 of this invention. It is a disassembled perspective view when the optical unit shown in FIG. 3 is disassembled more finely. It is YZ sectional drawing of the optical unit shown in FIG. It is a disassembled perspective view which shows an example of the specific structure of the movable body used for the optical unit shown in FIG. It is a perspective view of the optical module etc. which are shown in FIG. It is a disassembled perspective view of the optical module etc. which are shown in FIG. It is a schematic block diagram of the optical unit which concerns on the modification of Embodiment 1 of this invention. It is a schematic block diagram of the optical unit which concerns on Embodiment 2 of this invention. It is a schematic block diagram of the optical unit which concerns on Embodiment 3 of this invention. It is a schematic block diagram of the optical unit which concerns on Embodiment 4 of this invention. It is a schematic block diagram of the optical unit which concerns on Embodiment 5 of this invention. It is a perspective view which shows an example of the specific structure of the optical unit which concerns on Embodiment 5 of this invention. It is a disassembled perspective view when the optical unit shown in FIG. 14 is disassembled more finely. It is a disassembled perspective view which shows structures, such as a 1st support mechanism of the optical unit shown in FIG. It is a schematic block diagram of the optical unit which concerns on the modification of Embodiment 5 of this invention. It is a schematic block diagram of the optical unit which concerns on Embodiment 6 of this invention. It is a perspective view which shows an example of the specific structure of the optical unit which concerns on Embodiment 6 of this invention. It is explanatory drawing which shows the structure by the side of the fixed body of the optical unit shown in FIG. FIG. 21 is an exploded perspective view showing a configuration of a rotation support portion and the like configured in the optical unit shown in FIG. It is a schematic block diagram of the optical unit which concerns on the modification of Embodiment 6 of this invention. It is explanatory drawing of the magnetic drive mechanism for rolling employable with the optical unit to which this invention is applied.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the following description, a configuration for preventing camera shake of the imaging optical module will be exemplified. In the following description, the three directions orthogonal to each other are the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively, and the first direction along the optical axis L (lens optical axis / optical axis of the optical element) is the Z-axis direction. The second direction intersecting the Z-axis direction (first direction) is the Y-axis direction, and the third direction intersecting the Z-axis direction (first direction) and the Y-axis direction (second direction) is the X-axis direction. To do. Further, in the following description, among the shakes in each direction, rotation around the X axis corresponds to so-called pitching (pitch), rotation around the Y axis corresponds to so-called yawing (roll), and Z axis The rotation around corresponds to so-called rolling. Also, + X is attached to one side in the X axis direction, -X is attached to the other side, + Y is attached to one side in the Y axis direction, -Y is attached to the other side, and Z axis One side of the direction (opposite the subject side / optical axis direction rear side) is denoted by + Z, and the other side (subject side / optical axis direction front side) is denoted by -Z.

[Embodiment 1]
(Overall configuration of optical unit for shooting)
FIG. 1 is an explanatory view schematically showing a state in which an optical unit with a shake correction function to which the present invention is applied is mounted on an optical device such as a mobile phone.

  An optical unit 300 (an optical unit with a shake correction function) illustrated in FIG. 1 includes an optical module 10 including a lens 1a and the like in which an optical axis L extends along the Z-axis direction. It is used as a thin camera or the like used in the optical apparatus 1000. Therefore, the optical unit 300 is mounted in a state of being supported by the chassis 2000 (device main body) of the optical device 1000.

  In the optical unit 300, if a shake such as a hand shake occurs in the optical apparatus 1000 during shooting, the captured image is disturbed. Therefore, in the optical unit 300, the optical module 10 is moved to the optical axis L by a swinging magnetic drive mechanism (not shown in FIG. 1), which will be described later, based on the result of detecting hand shake by a gyroscope (shake detection sensor) or the like. By swinging around two orthogonal axes, so-called pitching and yawing are corrected. In this embodiment, a so-called rolling is corrected by rotating the optical module 10 about the Z axis by a rolling magnetic drive mechanism (not shown in FIG. 1) described later. Therefore, flexible wiring boards 1800 and 1900 for feeding power to the optical module 10, the swinging magnetic drive mechanism and the rolling magnetic drive mechanism are drawn out to the optical unit 300, and the flexible wiring boards 1800 and 1900 are drawn out. Are electrically connected to an upper control unit provided on the main body side of the optical apparatus 1000.

(Schematic configuration of the optical unit 300)
2 is a schematic configuration diagram of the optical unit 300 according to Embodiment 1 of the present invention, and FIGS. 2A and 2B are a YZ cross section and an XY cross sectional view of the optical unit 300, respectively.

  As shown in FIG. 2, in the present embodiment, when performing the above-described shake correction, the optical module 10 and the support body 20 surrounding the optical module 10 are disposed inside the fixed body 60 constituting the housing of the optical unit 300. The movable body 100 provided is disposed, and a swinging magnetic drive mechanism 500 is provided between the support 20 and the optical module 10. Therefore, when correcting pitching and yawing, the swinging magnetic drive mechanism swings the optical module 10 with respect to the support 20 within the movable body 100. In this embodiment, the rolling magnetic drive mechanism 600 is provided between the fixed body 60 and the movable body 100, and the rolling magnetic drive mechanism 600 moves the movable body 100 inside the fixed body 60 when performing rolling correction. Rotate around the optical axis L.

  More specifically, the optical unit 300 according to this embodiment includes a movable body 100 having the optical module 10 including the lens 1 a inside the unit case 66 of the fixed body 60, and the movable body 100 (optical module 10) as a light beam. The first support mechanism 80 is rotatably supported around the axis L, and the rolling magnetic drive mechanism 600 is configured to rotate the movable body 100 (optical module 10) around the optical axis L. The rolling magnetic drive mechanism 600 is configured between the movable body 100 and the fixed body 60 inside the fixed body 60. The first support mechanism 80 includes a ball bearing 81 disposed so as to surround the optical axis L and a mechanical spring in which the movable body 100 (the optical module 10) is elastically supported by the fixed body 60. 85.

  The movable body 100 includes an optical module 10 and a support body 20 surrounding the optical module 10. The optical module 10 is supported by the second support mechanism 30 so as to be swingable inside the support body 20. Has been. Further, in the movable body 100, between the support 20 and the optical module 10, the optical module 10 is around the two axes perpendicular to the optical axis L with respect to the support 20 (around the axis L11 and around the second axis L12). An oscillating magnetic drive mechanism 500 that oscillates at a time is configured. For this reason, the rolling magnetic drive mechanism 600 and the swinging magnetic drive mechanism 500 are provided separately from each other.

  In this embodiment, in the movable body 100, the optical module 10 and the swinging magnetic drive mechanism 500 are disposed inside the support body 20. The movable body 100 has a convex portion 190 that protrudes from the support body 20 toward the rear side in the optical axis direction (one side in the Z-axis direction + Z) on the extended line of the optical axis L. The movable body 100 is disposed so as to surround the convex portion 190. For this reason, the ball bearing 81 is on the opposite side of the movable body 100 from the side where the optical axis L extends with respect to the portion (support 20) where the optical module 10 and the swinging magnetic drive mechanism 500 are disposed. Is arranged.

  Further, the rolling magnetic drive mechanism 600 includes four magnets 610 provided by magnet holders 171 and 172 on each of the four side surfaces of the movable body 100, and four magnets 610 in the fixed body 60, the X-axis direction and the Y-axis. And four coils 620 facing each other in a one-to-one relationship in the direction. For this reason, when viewed from the direction orthogonal to the optical axis L, the rolling magnetic drive mechanism 600 is disposed at a position overlapping the support 20 of the movable body 100. In this embodiment, the coil 620 is fixed to the fixed body 60 by the coil holder 69. The mechanical spring 85 is connected between the convex portion 190 of the movable body 100 and the fixed body 60 on the rear side in the optical axis direction with respect to the ball bearing 81 (one side in the Z-axis direction + Z).

  Here, the magnet 610 generates a magnetic field linked to a portion of the coil 620 that extends in the Z-axis direction. Therefore, when the coil 620 is energized, the movable body 100 rotates around the optical axis L.

  In the fixed body 60, a cover 665 is provided on one side of the unit case 66 in the Y-axis direction, and the flexible wiring board 1800 pulled out from the movable body 100 is located on the inner side of the cover 665 on the front side in the optical axis direction. After bending toward the front side in the optical axis direction, the curved portion 1890 curves toward the rear side in the optical axis direction and extends toward the rear side in the axial direction.

(Main effects of this form)
As described above, in the optical unit 300 of this embodiment, the oscillating magnetic drive mechanism 500 is disposed inside the support 20 of the movable body 100, and the rolling magnetic drive mechanism 600 is disposed outside the support 20. . Therefore, the oscillating magnetic drive mechanism 500 and the rolling magnetic drive mechanism 600 are provided separately from each other. Therefore, even when the rolling correction is performed in addition to the pitching and yawing correction, magnetic interference is unlikely to occur between the rocking magnetic drive mechanism 500 and the rolling magnetic drive mechanism 600.

  The first support mechanism 80 that supports the optical module 10 so as to be rotatable around the optical axis L includes a mechanical spring 85. For this reason, when the operation of the rolling magnetic drive mechanism 600 is stopped, the optical module 10 is always held at the origin by receiving the urging force of the mechanical spring 85. Therefore, it is easy to control the correction in the rolling direction. Further, when the rolling magnetic drive mechanism 600 is actuated to rotate the optical module 10 around the optical axis L, the mechanical spring 85 exerts a drag force, so that the optical module 10 is separated from the rolling magnetic drive mechanism 600. It reliably rotates to a position where the driving force and the resistance of the mechanical spring 85 are balanced. Therefore, the accuracy of correction in the rolling direction is high.

  The first support mechanism 80 includes a ball bearing 81 arranged so as to surround the optical axis L, and the movable body 100 is supported by the ball bearing 81 so as to be rotatable around the optical axis L. . Therefore, the movable body 100 smoothly rotates around the axis of the ball bearing 81 when correcting the rolling direction.

  In addition, the flexible wiring board 1800 is curved toward the front side in the optical axis direction inside the cover 665 and extends toward the front side in the optical axis direction, and then curves toward the rear side in the optical axis direction at the bending portion 1890. Extending axially rearward. For this reason, when the movable body 100 rotates around the optical axis L, the flexible wiring board 1800 is unlikely to exert a drag on the movable body 100.

(Specific configuration example of optical unit 300 according to Embodiment 1)
3 is a perspective view illustrating an example of a specific configuration of the optical unit 300 according to Embodiment 1 of the present invention. FIGS. 3A and 3B are views of the optical unit 300 viewed from the front side in the optical axis direction. It is a perspective view at the time, and an exploded perspective view. FIG. 4 is an exploded perspective view of the optical unit 300 shown in FIG. FIG. 5 is a YZ sectional view of the optical unit 300 shown in FIG.

  In the optical unit 300 shown in FIGS. 3 and 4, the fixed body 60 includes a rectangular unit case 66 whose rear side in the optical axis direction is an open end, and a bottom plate 67 that closes the opening on the rear side in the optical axis direction of the unit case 66. And have. The unit case 66 includes a front plate portion 661 positioned on the front side in the optical axis direction, and a rectangular tube-shaped body portion 662 bent from the end of the front plate portion 661 toward the rear side in the optical axis direction. In the center of the portion 661, a window 661a for guiding light from the subject side to the inside is formed. The bottom plate 67 includes a rectangular main body 671 extending in a direction orthogonal to the optical axis L, one end + X in the X-axis direction of the main body 671, an end on the other side −X in the X-axis, and the Y-axis. 3 side plate portions 672 bent from the end of the other side -Y to the front side in the optical axis direction, and the side plate portions 672 are fixed to the body portion 662 of the unit case 66 so as to overlap the inner surface. Yes.

  The fixed body 60 has a cover 665 fixed to one side + Y of the body portion 662 in the Y-axis direction. The cover 665 has a smaller outer dimension than the unit case 66. The fixed body 60 has a bearing holder 98 fixed to the front surface of the bottom plate 67 in the optical axis direction, and a circular hole 980 is formed at the center of the bearing holder 98. The fixed body 60 has a square cylindrical coil holder 69 fixed to the inner surface of the body portion 662 of the unit case 66, and the coil 620 is held on each of the four inner surfaces of the coil holder 69.

  The movable body 100 includes a support body 20 that accommodates the optical module 10 and the like inside, and flexible wiring boards 1800 and 1900 drawn from the support body 20. The movable body 100 has rectangular magnet holders 171 and 172 that hold the magnet 610 on both sides in the optical axis direction, and the magnet 610 and the magnet holders 171 and 172 are fixed to the support body 20. In this state, the magnet 610 opposes the coil 620 and generates a magnetic field interlinking with a side portion extending in the Z-axis direction in the coil 620, and together with the coil 620 between the movable body 100 and the fixed body 60. The rolling magnetic drive mechanism 600 is configured. The rolling magnetic drive mechanism 600 overlaps the support body 20 of the movable body 100 when viewed from the direction orthogonal to the optical axis L (X-axis direction and Y-axis direction).

  The movable body 100 has a holding plate 130 fixed to the rear side in the optical axis direction with respect to the support body 20. The holding plate 130 includes a flat plate portion 131 that holds the support body 20 on the rear side in the optical axis direction. Three bent from the flat side 131 to one end in the X axis direction + X end, the other end in the X axis direction -X end, and the other end in the Y axis direction -Y end in the optical axis direction Side plate portion 132. The side plate portion 132 is fixed to the support body 20 in a state where it overlaps the outside of the support body 20. In the holding plate 130, the flat plate portion 131 is formed with a bottomed cylindrical convex portion 190 projecting toward the rear side in the optical axis direction (one side in the Z-axis direction + Z) on the extended line of the optical axis L. . For this reason, the movable body 100 has a convex portion 190 that protrudes from the support body 20 toward the rear side in the optical axis direction (one side in the Z-axis direction + Z) on the extended line of the optical axis L.

(Specific configuration example of the first support mechanism 80)
In this embodiment, the ball bearing 81 of the first support mechanism 80 is disposed around the convex portion 190, and the inner ring 811 of the ball bearing 81 is fixed by a washer 810 while being fitted to the convex portion 190. . On the other hand, in the ball bearing 81, the outer ring 812 that holds the ball 813 with the inner ring 811 is fixed inside the hole 980 of the bearing holder 98. Accordingly, the movable body 100 is supported so as to be rotatable around the optical axis L via the ball bearing 81.

  Further, the first support mechanism 80 has a mechanical spring 85 on the rear side in the optical axis direction with respect to the ball bearing 81. In this embodiment, the mechanical spring 85 is a plate spring 85 a and is fixed to the inner connecting portion 851 fixed to the rear end surface in the optical axis direction of the convex portion 190 and the rear end surface in the optical axis direction of the bearing holder 98. The outer connecting portion 852 and a plurality of arm portions 853 for connecting the inner connecting portion 851 and the outer connecting portion 852 are provided.

(Specific configuration example of flexible wiring board 1800)
The flexible wiring board 1800 passes through between the rear end portion in the optical axis direction of the support 20 and the flat plate portion 131 of the holding plate 130, and extends from a notch 679 formed in the body portion 662 of the unit case 66 in the Y-axis direction. After being pulled out to the one side + Y, it is drawn inside the cover 665, and then is drawn from the cover 665 to the one side + Y in the Y-axis direction through the space between the cover 665 and the main body 671 of the bottom plate 67. . Here, the flexible printed circuit board 1800 is curved toward the front side in the optical axis direction and curved toward the front side in the optical axis direction inside the cover 665, and then curved toward the rear side in the optical axis direction at the bending portion 1890. Then, it extends toward the rear side in the axial direction. For this reason, when the movable body 100 rotates around the optical axis L, the flexible wiring board 1800 is unlikely to exert a drag on the movable body 100.

  Note that the end of the flexible wiring board 1900 is connected to the flexible wiring board 1800 in the vicinity of the notch 679 inside the unit case 66. For this reason, only the flexible wiring board 1800 extends outward from the unit case 66.

(Specific configuration example of movable body 100)
FIG. 6 is an exploded perspective view showing an example of a specific configuration of the movable body 100 used in the optical unit 300 shown in FIG. FIG. 7 is a perspective view of the optical module 10 and the like shown in FIG. FIG. 8 is an exploded perspective view of the optical module 10 and the like shown in FIG.

  As shown in FIGS. 6, 7, and 8, the movable body 100 includes a support 20, an optical module 10, and a second state in which the optical module 10 is supported to be swingable with respect to the support 20. A support mechanism 30 and a swinging magnetic drive mechanism 500 that swings the optical module 10 relative to the support 20 between the optical module 10 and the support 20 are provided.

  The support 20 includes a case 1200. The case 1200 includes a rectangular tubular body 1210 that surrounds the optical module 10, and a rectangular frame-shaped end plate 1220 that projects radially inward from the other side -Z end of the body 1210 in the Z-axis direction. And a rectangular window 1221 is formed in the end plate portion 1220. The support 20 includes a cover 1600 fixed to the other side −Z of the case 1200 in the Z-axis direction, and a cover sheet 1700 fixed to the other side −Z of the cover 1600 in the Z-axis direction. The cover 1600 includes a plate-like frame portion 1610 that overlaps the end plate portion 1220 of the case 1200, and a rectangular tube-like side plate portion 1620 that is bent from the inner edge of the frame portion 1610 to one side + Z in the Z-axis direction. The side plate portion 1620 is inserted into the case 1200 from the window 1221 of the case 1200. Triangular plate-like connecting portions 1630 are formed at the four corners of the side plate portion 1620 on one side + Z end in the Z-axis direction, and a rectangular frame 25 described later is fixed to the connecting portion 1630. The cover sheet 1700 is formed with a window 1710 that guides light from the subject to the optical module 10.

  The support 20 has a rectangular first bottom plate 1400 that covers the rear side of the case 1200 in the optical axis direction. The first bottom plate 1400 is formed with an opening 1410 for drawing out the routing portion 1840 of the flexible wiring board 1800 to the outside. The opening 1410 is one side in the Z-axis direction + Z with respect to the first bottom plate 1400. Are covered by a second bottom plate 1500 that overlaps. The first bottom plate 1400 includes a rectangular bottom plate portion 1420 and a side plate portion 1440 protruding from the four edges of the bottom plate portion 1420 toward the other side −Z in the Z-axis direction.

  The support 20 has a rectangular frame-shaped plate-like stopper 1300 arranged so as to surround the optical module 10, and the plate-like stopper 1300 includes the side plate portion 1440 of the first bottom plate 1400 and the body of the case 1200. It is fixed to the first bottom plate 1400 and the case 1200 while being sandwiched between the portions 1210. In this embodiment, a portion located on the inner peripheral side of the plate-like stopper 1300 overlaps the optical module 10 on one side + Z in the Z-axis direction. For this reason, the plate-like stopper 1300 defines a movable range to one side + Z in the Z-axis direction of the optical module 10.

(Specific configuration of the swinging magnetic drive mechanism 500)
The swinging magnetic drive mechanism 500 is a magnetic drive mechanism using a plate-like magnet 520 and a coil 560. The coil 560 is held by the optical module 10, and the magnet 520 is held on the inner surfaces of the four side plate portions of the body portion 1210 of the case 1200. In this embodiment, the magnet 520 is magnetized with different poles on the outer surface side and the inner surface side. The magnet 520 is divided into two in the optical axis L direction, and is magnetized so that the magnetic poles located on the coil 560 side are different in the optical axis L direction. For this reason, the upper and lower long sides of the coil 560 are used as effective sides. Case 1200 is made of a magnetic material and functions as a yoke for magnet 520.

(Specific configuration example of the optical module 10)
The optical module 10 includes a holder 4 that holds the lens 1 a and the like, a weight 5 that is fixed to the front end surface of the holder 4 in the optical axis direction, and a frame 1110 that holds the holder 4. A focusing driving actuator (not shown) for driving the lens 1 a in the optical axis direction may be provided inside the holder 4. Connected to the substrate 1810 of the optical module 10 is a signal output flexible wiring substrate 1800 for outputting a signal obtained by the imaging device 1b. A gyroscope 13 (see FIG. 5) is mounted on the rear side of the substrate 1810 in the optical axis direction. When a focusing drive actuator (not shown) is provided in the optical module 10, the drive current is supplied to the actuator using the flexible wiring board 1800.

  The frame 1110 constitutes the outer peripheral portion of the optical module 10, and generally includes a cylindrical holder holding portion 1120 that holds the holder 4 inside, and one end in the Z-axis direction + Z end of the holder holding portion 1120. And a thick flange portion 1130 that expands in diameter. A coil holding portion 1150 that holds the coil 560 is formed on the outer surface of the flange portion 1130. The optical module 10 is connected to a flexible wiring substrate 1900 for supplying power to the coil 560.

(Specific configuration example of the second support mechanism 30)
In the movable body 100 of the present embodiment, in order to correct camera shake, the optical module 10 is supported so as to be swingable about an axis L11 orthogonal to the optical axis L, and the optical module 10 is orthogonal to the optical axis L, and the axis L11. Needs to be supported so as to be swingable around an axis L12 intersecting with the axis L12. For this reason, between the optical module 10 and the support body 20, the 2nd support mechanism 30 demonstrated below is comprised.

  In this embodiment, the second support mechanism 30 uses a gimbal mechanism 30 a and a plate spring 70. In configuring the gimbal mechanism 30a, a rectangular movable frame 32 supported by the cover 1600 via the rectangular frame 25 is used. The movable frame 32 has four corners, and in this embodiment, the connecting portion that connects the corners is a meandering portion that is curved in a direction perpendicular to each extending direction and the Z-axis direction. Have. Here, metal spheres are fixed to the inside of the four corners of the movable frame 32 by welding or the like, and the spheres form protrusions that direct a hemispherical convex surface radially inward.

  Here, the cover 1600 is fixed to the end plate portion 1220 of the case 1200 (support 20), and the rectangular frame 25 is fixed to the connecting portion 1630 of the cover 1600. The rectangular frame 25 includes a support plate portion 255 that protrudes from two corner portions positioned in the direction in which the axis L11 extends, out of the four corner portions, toward one side + Z in the Z-axis direction. The spheres fixed to the two corners of the movable frame 32 are respectively supported by the recesses formed on the outer surfaces of the two support plate portions 255.

  In the movable frame 32, the sphere fixed to the other two corners positioned in the direction in which the axis L <b> 12 extends is supported by a recess formed in the frame 1110. For this reason, the optical module 10 is supported so as to be swingable around the axis L11, and is supported so as to be swingable around the axis L12.

  Here, the movable frame 32 is at the same height position as the coil holding portion 1150 (the same position in the Z-axis direction). For this reason, the gimbal mechanism 30 a is provided at a position overlapping the swinging magnetic drive mechanism 500 when viewed from the direction orthogonal to the optical axis L. In particular, in this embodiment, the gimbal mechanism 30a is provided at a position overlapping the center in the Z-axis direction of the rocking magnetic drive mechanism 500 when viewed from the direction orthogonal to the optical axis L direction. In this embodiment, the movable frame 32 is made of a metal material or the like having a spring property and does not bend downward due to the weight of the optical module 10, but can absorb the shock when an impact is applied from the outside. have. In addition, since the connecting portion of the movable frame 32 has a spring property, rattling does not occur between the sphere and the frame 1110 and between the sphere and the rectangular frame 25.

  The second support mechanism 30 includes a plate spring 70 that is connected to the optical module 10 and the support 20 and defines the posture of the optical module 10 when the swinging magnetic drive mechanism 500 is in a stopped state. . In this embodiment, the plate spring 70 is a spring member obtained by processing a metal plate into a predetermined shape, and includes an inner connection portion 71 connected to the frame 1110, an outer connection portion 72 connected to the rectangular frame 25, and an inner connection. The arm part 73 which connects the part 71 and the outer side connection part 72 is provided. Here, the gimbal mechanism 30 a is provided at a position overlapping the center of the swinging magnetic drive mechanism 500 in the Z-axis direction, whereas the plate spring 70 is disposed in the Z-axis direction of the swinging magnetic drive mechanism 500. It is located on the other side -Z in the Z-axis direction from the position overlapping the center.

  The optical module 10 swings around the midway position of the optical module 10 in the Z-axis direction. Further, the gimbal mechanism 30a and the swinging magnetic drive mechanism 500 are provided in the middle of the optical module 10 in the Z-axis direction. For this reason, the optical module 10 is compared with the configuration in which the optical module is swung around the rear side in the optical axis direction at the same angle as that at the front side in the optical axis direction in the X axis direction and the Y axis direction. The maximum displacement amount of the optical module 10 is small. Accordingly, since it is not necessary to secure a large space around the optical module 10 in the direction orthogonal to the optical axis L direction, the size of the movable body 100 in the direction orthogonal to the optical axis L direction can be reduced. In particular, in this embodiment, the gimbal mechanism 30a and the swinging magnetic drive mechanism 500 are provided at the intermediate position (center position) of the optical module 10 in the Z-axis direction. The gimbal mechanism 30a and the swinging magnetic drive mechanism 500 are provided at the same position as the center of gravity of the optical module 10 in the Z-axis direction in the Z-axis direction. Here, the center of gravity of the optical module 10 is shifted from the intermediate position in the Z-axis direction to one side + Z in the Z-axis direction, but in the optical module 10, the end of the holder 4 on the other side −Z in the Z-axis direction. A weight 5 is attached. For this reason, in the optical axis L direction, the position of the center of gravity of the optical module 10 is shifted by the weight 5 toward the support position by the gimbal mechanism 30a. Therefore, the gravity center position of the optical module 10 is located at the intermediate position (center position) of the optical module 10 in the Z-axis direction, and the gimbal mechanism 30a is provided at the same position in the Z-axis direction as the gravity center position. Accordingly, the optical module 10 can be properly swung with a relatively small driving force, and mechanical vibration can be suppressed when the optical module 10 is swung. Can be corrected.

(Flexible wiring board 1800, 1900 routing structure)
In the flexible wiring board 1800, the routing portion 1840 is divided into a first belt-shaped portion 1860 and a second belt-shaped portion 1870 that are arranged in parallel in the X-axis direction by a slit 1850 that extends in the Y-axis direction. The routing portion 1840 is drawn to the outside through the opening 1410 of the first bottom plate 1400, and is drawn to the outside of the movable body 100 through the space between the first bottom plate 1400 and the second bottom plate 1500.

  Here, the flexible printed circuit board 1800 is drawn from one end + Y in the Y-axis direction from the optical axis L in the end face of the optical module 10 on the rear side in the optical axis direction. In this embodiment, the routing portion 1840 is divided into a first strip portion 1860 and a second strip portion 1870, but both the first strip portion 1860 and the second strip portion 1870 are drawn from the drawer portion from the optical module 10. A first extending portion 1881 extending from the optical axis L to the other side -Y in the Y-axis direction, and toward the rear side in the optical axis direction (one side in the Z-axis direction + Z) on the tip side of the first extending portion 1881 And a second extending portion 1883 extending from the first bending portion 1882 toward one side + Y in the Y-axis direction, and after the optical module 10 in the optical axis direction. It extends in a state of facing the side end face in parallel through a gap. Further, the second extending portion 1883 is drawn from the middle through the opening 1410 of the first bottom plate 1400, and on the one side + Y in the Y-axis direction from the optical axis L, in the Z-axis direction of the first bottom plate 1400. Is fixed to the surface of one side + Z by a flexible sheet 19 such as a double-sided tape. Note that a spacer 18 (see FIG. 5) is fixed to the end surface on the rear side in the optical axis direction of the optical module 10 between the first extending portion 1881. For this reason, even if the gyroscope 13 is fixed to the end surface on the rear side in the optical axis direction of the optical module 10, there is a gap between the gyroscope 13 and the first extending portion 1881.

  Similarly to the first belt-shaped portion 1860 and the second belt-shaped portion 1870, the lead-out portion 1920 of the flexible wiring board 1900 is located at the position sandwiched between the first belt-shaped portion 1860 and the second belt-shaped portion 1870 in the X-axis direction. First extension portion 1921 extending from the optical axis L to the other side -Y in the direction, and bending toward the rear side in the optical axis direction (one side in the Z-axis direction + Z) at the tip side of the first extension portion 1921 And a second extending portion 1923 extending from the first bending portion 1922 toward one side + Y in the Y-axis direction. Further, the second extending portion 1923 is pulled out from the middle through the opening 1410 of the first bottom plate 1400, and on the one side + Y in the Y-axis direction from the optical axis L, in the Z-axis direction of the first bottom plate 1400. Is fixed to the first bottom plate 1400 by a flexible sheet 19 on one side + Z.

  Therefore, in this embodiment, since the dimensions of the routing portions 1840 and 1920 of the flexible wiring boards 1800 and 1900 are long, the force applied to the optical module 10 from the flexible wiring boards 1800 and 1900 is small when the optical module 10 swings. Therefore, since the optical module 10 can be swung appropriately, shake such as hand shake can be corrected appropriately.

[Modification of Embodiment 1]
FIG. 9 is a schematic configuration diagram of an optical unit 300 according to a modification of the first embodiment of the present invention. In FIG. 9, illustration of the fixed body 60 and the like is omitted. In addition, since the basic configuration of the present embodiment and the later-described embodiment is the same as that of the first embodiment, the corresponding portions are denoted by the same reference numerals and the description thereof is omitted.

  In the first embodiment, the ball bearing 81 is disposed on the rear side in the optical axis direction with respect to the support 20 of the movable body 100, and when viewed from the direction orthogonal to the optical axis L, the rolling magnetic drive mechanism 600 is In this embodiment, the ball bearing 81 and the rolling magnetic drive mechanism 600 are located with respect to the support 20 of the movable body 100, as shown in FIG. It is arranged on the rear side in the optical axis direction.

  More specifically, in the optical unit 300 shown in FIG. 9A, the ball bearing 81 of the first support mechanism 80 is provided around the convex portion 190 protruding rearward in the optical axis direction from the holding plate 130 of the movable body 100. Has been placed. More specifically, the inner ring 811 of the ball bearing 81 is fixed to the convex portion 190, and the outer ring 812 is fixed to the fixed body 60 on the radially outer side with respect to the inner ring 811. The holding plate 130 is formed with a cylindrical portion 191 that protrudes rearward in the optical axis direction on the outer peripheral side from the ball bearing 81, and the magnet 610 of the rolling magnetic drive mechanism 600 is held on the outer peripheral surface of the cylindrical portion 191. ing. The coil 620 of the rolling magnetic drive mechanism 600 is opposed to the magnet 610 on the radially outer side. In this case, the mechanical spring 85 (plate spring 85a) of the first support mechanism 80 is disposed between the support 20 and the ball bearing 81, for example.

  In the optical unit 300 shown in FIG. 9B, the ball bearing 81 of the first support mechanism 80 is disposed around the convex portion 190 protruding from the holding plate 130 of the movable body 100 to the rear side in the optical axis direction. . Further, a support plate portion 192 that is orthogonal to the optical axis L is formed at the end portion of the convex portion 190 on the rear side in the optical axis direction, and the magnet 610 is held on the end surface of the support plate portion 192 on the rear side in the optical axis direction. Has been. The coil 620 of the rolling magnetic drive mechanism 600 faces the magnet 610 on the rear side in the optical axis direction. In this case, the mechanical spring 85 (plate spring 85a) of the first support mechanism 80 is disposed between the ball bearing 81 and the rolling magnetic drive mechanism 600, for example.

  Even in such a configuration, when viewed from a direction orthogonal to the optical axis L, the oscillating magnetic drive mechanism 500 and the rolling magnetic drive mechanism 600 formed inside the support 20 are largely separated from each other. Accordingly, since magnetic interference hardly occurs between the swinging magnetic drive mechanism 500 and the rolling magnetic drive mechanism 600, it is easy to control shake correction.

[Embodiment 2]
10 is a schematic configuration diagram of an optical unit 300 according to Embodiment 2 of the present invention. FIGS. 10A, 10B, and 10C are a perspective view, a cross-sectional view, and a sectional view of the optical unit 300, respectively. It is sectional drawing of a modification. In the first embodiment, the ball bearing 81 is arranged on the rear side in the optical axis direction with respect to the support 20 of the movable body 100. However, in the present embodiment, the optical axis L is used as shown in FIG. The ball bearing 81 is disposed at a position overlapping the support 20 of the movable body 100 when viewed from a direction orthogonal to the direction. More specifically, the inner ring 811 of the ball bearing 81 is fixed around the cylindrical body portion of the support 20, and the outer ring 812 is fixed to the fixed body 60 on the radially outer side with respect to the inner ring 811.

  Among such optical units 300, in the optical unit 300 shown in FIG. 10B, a convex portion 190 projects from the holding plate 130 of the movable body 100 to the rear side in the optical axis direction, and the rear side of the convex portion 190 in the optical axis direction. A ball bearing 82 having a smaller diameter than the ball bearing 81 is disposed around the side end. A rolling magnetic drive mechanism 600 is disposed between the ball bearing 82 and the support 20. Here, in the rolling magnetic drive mechanism 600, the coil 620 is held on the convex portion 190 on the movable body 100 side, and the magnet 610 is disposed radially outward with respect to the coil 620. In this case, the mechanical spring 85 (plate spring 85 a) of the first support mechanism 80 is disposed between the support 20 and the coil 620.

  Further, in the optical unit 300 shown in FIG. 10C, the support plate portion orthogonal to the optical axis L is provided at the rear end portion in the optical axis direction of the convex portion 190 protruding from the movable body 100 rearward in the optical axis direction. 192 is formed, and the magnet 610 of the rolling magnetic drive mechanism 600 is held on the end surface of the support plate portion 192 on the rear side in the optical axis direction. The coil 620 of the rolling magnetic drive mechanism 600 faces the magnet 610 on the rear side in the optical axis direction. In this case, the mechanical spring 85 (plate spring 85a) of the first support mechanism 80 is disposed between the support body 20 and the support plate portion 192, for example.

  Even in such a configuration, when viewed from a direction orthogonal to the optical axis L, the oscillating magnetic drive mechanism 500 and the rolling magnetic drive mechanism 600 formed inside the support 20 are largely separated from each other. Accordingly, since magnetic interference hardly occurs between the swinging magnetic drive mechanism 500 and the rolling magnetic drive mechanism 600, it is easy to control shake correction. Further, since the first support mechanism 80 has the mechanical spring 85, the optical module 10 receives the urging force of the mechanical spring 85 when the operation of the rolling magnetic drive mechanism 600 is stopped. Always kept at the home position. Therefore, the same effects as those of the first embodiment are obtained, such as easy control of correction in the rolling direction.

[Embodiment 3]
FIG. 11 is a schematic configuration diagram of an optical unit 300 according to Embodiment 3 of the present invention, and FIGS. 11A and 11B are a YZ cross section and an XY cross sectional view of the optical unit 300, respectively.

  As shown in FIG. 11, in the optical unit 300 of this embodiment, the first support mechanism 80 includes a pivot portion 83 that supports the movable body 100 so as to be rotatable around the optical axis L on the rear side in the optical axis direction, and the optical axis direction. A ball bearing 84 that supports the movable body 100 between the pivot portion 83 and the pivot portion 83 is provided on the front side.

  The bibot unit 83 includes a sphere 830 that is in contact with the inside of the recess 135 formed on the projection 134 of the holding plate 130 of the movable body 100 on the extended line of the optical axis L, and the sphere 830 on the front side in the optical axis direction (the side of the movable body 100 The pivot portion 83 is in contact with the movable body 100 with elasticity. In this embodiment, the urging member 831 is a leaf spring.

  The ball bearing 84 includes a plurality of spheres 840 arranged around the optical axis L, an annular sphere holding member 841 that holds the plurality of spheres 840, and an annular front support plate that contacts the sphere 840 from the front side in the optical axis direction. 842 and an annular rear support plate 843 that contacts the spherical body 840 from the rear side in the optical axis direction. The front support plate 842 is fixed to the fixed body 60, and the rear support plate 843 is fixed to the movable body 100. Has been.

  In this embodiment, the magnet 610 of the rolling magnetic drive mechanism 600 is held on the outer peripheral surface of the movable body 100, and the coil 620 of the rolling magnetic drive mechanism 600 is opposed to the magnet 610 on the radially outer side. Accordingly, when viewed from the direction orthogonal to the optical axis L direction, the rolling magnetic drive mechanism 600 overlaps the support 20 of the movable body 100.

  Further, the mechanical spring 85 (plate spring 85 a) is provided on the rear side in the optical axis direction with respect to the support 20 of the movable body 100, for example, at a position connected to the convex portion 134 of the holding plate 130.

  Even in such a configuration, since the magnetic interference hardly occurs between the swinging magnetic drive mechanism 500 and the rolling magnetic drive mechanism 600, it is easy to control shake correction. Further, since the first support mechanism 80 has the mechanical spring 85, the optical module 10 receives the urging force of the mechanical spring 85 when the operation of the rolling magnetic drive mechanism 600 is stopped. Always kept at the home position. Therefore, the same effects as those of the first embodiment are obtained, such as easy control of correction in the rolling direction.

[Embodiment 4]
FIG. 12 is a schematic configuration diagram of an optical unit 300 according to Embodiment 4 of the present invention, and FIGS. 12A and 12B are a YZ cross section and an XY cross sectional view of the optical unit 300, respectively.

  As shown in FIG. 12, in the optical unit 300 of this embodiment, the first support mechanism 80 is positioned around the movable body 100 at a position overlapping the movable body 100 when viewed from the direction orthogonal to the optical axis L. A ball bearing 86 arranged in an arc shape is provided. Here, the ball bearing 86 includes a fixed side receiving plate 861 fixed to the fixed body 60 side and a movable side receiving plate 862 held on the movable body 100 side. A plurality of spheres 863 are held between the movable side receiving plate 862.

  Here, the surface that receives the sphere 863 in the fixed-side receiving plate 861 is an arc-shaped concave surface 861a centering on the optical axis L, and the surface that receives the sphere 863 in the movable-side receiving plate 862 is the optical axis L. An arcuate convex surface 862a is formed at the center.

  Further, the first support mechanism 80 includes a mechanical spring 85 that biases the movable body 100 toward the side where the ball bearing 86 is located in the direction orthogonal to the optical axis L. In this embodiment, the mechanical spring 85 is a leaf spring 85b. The position where the side surface of the movable body 100 holds the leaf spring 85b is the center in the circumferential direction around the optical axis L of the leaf spring 85b. For this reason, the leaf spring 85 b biases the movable body 100 toward the center of the optical axis direction of the ball bearing 86 and the center of the arc. In this embodiment, the spring receiving plate 140 is fixed to one side + Y of the movable body 100 in the Y-axis direction. A convex portion 141 for bending the leaf spring 85b is formed at the center of the spring receiving plate 140 in the X direction, and the convex portion 141 has an engaging projection that projects toward one side + Y in the Y-axis direction. 142 is formed. Here, the engagement protrusion 142 protrudes toward the center of the leaf spring 85b in the X direction, and engages with a hole 851b formed at the center of the leaf spring 85b in the X direction.

  In addition, the rolling magnetic drive mechanism 600 includes the center of the arc of the ball bearing 86 and the center of the leaf spring 85b (the machine (machine) of the position overlapping the support 20 of the movable body 100 when viewed from the direction orthogonal to the optical axis L. Is arranged on the side (X-axis direction) orthogonal to the imaginary line connecting the target spring 85). In this embodiment, the magnet 610 is fixed to the movable body 100 side by the magnet holders 171 and 172, and the coil 620 is fixed to the fixed body 60 side by the coil holder 69.

  Even in such a configuration, the movable body 100 rotates around the optical axis L when the rolling magnetic drive mechanism 600 operates.

  Even in such a configuration, since the magnetic interference hardly occurs between the swinging magnetic drive mechanism 500 and the rolling magnetic drive mechanism 600, it is easy to control shake correction. Further, since the first support mechanism 80 has the mechanical spring 85, the optical module 10 receives the urging force of the mechanical spring 85 when the operation of the rolling magnetic drive mechanism 600 is stopped. Always kept at the home position. Therefore, the same effects as those of the first embodiment are obtained, such as easy control of correction in the rolling direction.

[Embodiment 5]
13 is a schematic configuration diagram of an optical unit 300 according to Embodiment 5 of the present invention, and FIGS. 13A and 13B are a YZ sectional view and an XY sectional view of the optical unit 300, respectively.

  As shown in FIG. 13, in the optical unit 300 of the present embodiment, the movable body 100 is disposed inside the fixed body 60, and the first support mechanism 80 configured between the movable body 100 and the fixed body 60 is used. The movable body 100 is supported by the fixed body 60 so as to be rotatable around the optical axis L.

  In the present embodiment, the first support mechanism 80 includes the intermediate support member 88 and the movable body 100 rotating around the first axis L1 at two locations separated in the extending direction of the first axis L1 that obliquely intersects the optical axis L. It has the 1st support part 801 made into the state supported by the intermediate support member 88 possible. Further, in the first support mechanism 80, the intermediate support member 88 rotates around the second axis L2 at two points separated in the extending direction of the second axis L2 that obliquely intersects the optical axis L and the first axis L1. It has the 2nd support part 802 made into the state supported by the fixed body 60 possible.

  Further, when viewed from a direction orthogonal to the optical axis L, the rolling magnetic drive mechanism 600 is disposed at a position overlapping the support body 20 of the movable body 100. In this embodiment, the rolling magnetic drive mechanism 600 includes a magnet 610 fixed to the other side −X of the movable body 100 in the X-axis direction via a yoke 630 and the other side X−X direction to the magnet 610. And a coil 620 fixed to the fixed body 60.

  Further, the mechanical spring 85 is disposed on the rear side in the optical axis direction with respect to the support body 20 of the movable body 100. In the present embodiment, the flexible wiring board 1800 is drawn to one side + X in the X-axis direction.

  Even in this configuration, when the rolling magnetic drive mechanism 600 is operated, the movable body 100 rotates about the first axis L1 and rotates about the second axis L2. At this time, the first axis L1 and the second axis L2 are inclined obliquely with respect to the optical axis L, but the rotation of the movable body 100 around the first axis L1 and the second axis L2 of the movable body 100 are around. When combined with the rotation, the movable body 100 rotates around the optical axis L.

  Even in such a configuration, since the magnetic interference hardly occurs between the swinging magnetic drive mechanism 500 and the rolling magnetic drive mechanism 600, it is easy to control shake correction. Further, since the first support mechanism 80 has the mechanical spring 85, the optical module 10 receives the urging force of the mechanical spring 85 when the operation of the rolling magnetic drive mechanism 600 is stopped. Always kept at the home position. Therefore, the same effects as those of the first embodiment are obtained, such as easy control of correction in the rolling direction.

(Specific Configuration Example of Optical Unit 300 According to Embodiment 5)
FIG. 14 is a perspective view showing an example of a specific configuration of the optical unit 300 according to Embodiment 5 of the present invention. FIGS. 14A and 14B show the optical unit 300 as viewed from the front side in the optical axis direction. It is a perspective view at the time, and an exploded perspective view. FIG. 15 is an exploded perspective view of the optical unit 300 shown in FIG. FIG. 16 is an exploded perspective view showing the configuration of the first support mechanism 80 and the like of the optical unit 300 shown in FIG. 14 to 16, only the fixed frame 68 is illustrated as the fixed body 60, and the unit case 66 and the like are not illustrated.

  As shown in FIGS. 14, 15, and 16, in the optical unit 300 of this embodiment, in the movable body 100, the support body 20 is accommodated in the holder 110 and the holder 110 is held by the frame 120. The fixed body 60 is provided with a fixed frame 68 at a position adjacent to the movable body 100 on the other side −X in the X-axis direction. The movable body 100 is rotated around the optical axis L by the first support mechanism 80. Supported as possible.

  In the present embodiment, the first support mechanism 80 includes the intermediate support member 88 and the movable body 100 rotating around the first axis L1 at two locations separated in the extending direction of the first axis L1 that obliquely intersects the optical axis L. It has the 1st support part 801 made into the state supported by the intermediate support member 88 possible. Further, in the first support mechanism 80, the intermediate support member 88 rotates around the second axis L2 at two points separated in the extending direction of the second axis L2 that obliquely intersects the optical axis L and the first axis L1. It has the 2nd support part 802 made into the state supported by the fixed body 60 possible.

  In configuring the first support mechanism 80, the fixed frame 68 is provided with two support portions 681 and 682 that protrude from the diagonal position of the rectangular portion 685 to one side + X in the X-axis direction. In this embodiment, the support portion 681 is provided at the corner of the rectangular portion 685 on the other side in the Y-axis direction -Y and one side in the Z-axis direction + Z, and the support portion 682 is on the one side in the Y-axis direction in the rectangular portion 685. + Y and the other side −Z in the Z-axis direction. Here, the distal end portion of the support portion 681 and the distal end portion of the support portion 682 are located on the second axis L2. A concave receiving portion 681a facing the other side in the Y-axis direction -Y and one side in the Z-axis direction + Z is formed at the distal end portion of the support portion 681, and one end in the Y-axis direction is formed at the distal end portion of the support portion 682. A concave receiving portion 682a facing the side + Y and the other side -Z in the Z-axis direction is formed.

  The frame 120 includes a bottom plate 122 that receives the holder 110 at one side + Z in the Z-axis direction, and the holder 110 receives the other side −X in the X-axis direction, one side in the Y-axis direction + Y, and the other side in the Y-axis direction −Y. And a side plate 121 that overlaps. Further, the frame 120 includes a first plate portion 123 bent from one end + X in the X-axis direction of the bottom plate portion 122 to one side + Z in the Z-axis direction, and one side + Z in the Z direction of the first plate portion 123. And a second plate portion 124 that is bent to the other side −X in the X-axis direction and faces the bottom plate portion 122 in the optical axis direction, and between the bottom plate portion 122 and the second plate portion 124. There is space in it. Further, the frame 120 is inclined from the corner of the X side in the X axis direction + X and the other side in the Z axis direction -Z of the side plate 121 located on the other side -Y in the Y axis direction to the other side Y in the Y axis direction. And the support portion 125 protruding in the Y-axis direction, and the side plate portion 121 located on the one side + Y in the Y-axis direction, the X-axis direction one side + X and the Z-axis direction one side + Z angle obliquely from the Y-axis direction one side + Y And a protruding support portion 126. Here, the distal end portion of the support portion 125 and the distal end portion of the support portion 126 are located on the first axis L1. A concave receiving portion 125a facing the other side -Y in the Y-axis direction and the other side -Z in the Z-axis direction is formed at the distal end portion of the support portion 125, and the distal end portion of the support portion 126 is formed in the Y-axis direction. A concave receiving portion 126a facing the one side + Y and the one side + Z in the Z-axis direction is formed.

  In the present embodiment, the intermediate support member 88 includes a first arm portion 881 extending in the Y-axis direction, and one end in the Y-axis direction + Y end of the first arm portion 881 to the other side −Z in the Z-axis direction. A second arm portion 882 that extends, and a third arm portion 883 that extends from the other side -Y end in the Y-axis direction of the first arm portion 881 to the other side -Z in the Z-axis direction. Yes. The 1st arm part 881, the 2nd arm part 882, and the 3rd arm part 883 are provided with the meandering part in the middle of the extending direction.

  In the intermediate support member 88, the first arm portion 881 is disposed between the bottom plate portion 122 and the second plate portion 124 of the frame 120. In this state, the distal end portion of the second arm portion 882 faces the distal end portion of the support portion 682 of the fixed frame 68, and the distal end portion of the third arm portion 883 faces the distal end portion of the support portion 125 of the frame 120. ing. Further, the root portion of the third arm portion 883 is opposed to the distal end portion of the support portion 681 of the fixed frame 68, and the root portion of the second arm portion 882 is opposed to the distal end portion of the support portion 126 of the frame 120. .

  A sphere 889 is fixed to the tip of the second arm portion 882. The spherical body 889 elastically abuts against a concave receiving portion 682a formed at the distal end portion of the support portion 682 of the fixed frame 68, and constitutes a second support portion 802 on the second axis L2. A sphere 886 is fixed to the tip of the third arm portion 883. The spherical body 886 elastically abuts against a concave receiving portion 125a formed at the distal end portion of the support portion 125 of the frame 120, and constitutes a first support portion 801 on the first axis L1. A sphere 888 is fixed to the root portion of the third arm portion 883. The spherical body 888 elastically contacts a concave receiving portion 681a formed at the distal end portion of the support portion 681 of the fixed frame 68, and constitutes a second support portion 802 on the second axis L2. A spherical body 887 is fixed to the base portion of the second arm portion 882. The spherical body 887 elastically contacts the concave receiving portion 126a of the support portion 126 of the frame 120, and constitutes a first support portion 801 on the first axis L1.

  Further, in the first support mechanism 80, the mechanical spring 85 is configured such that the inner connecting portion 851 is connected to the second plate portion 124 on the rear side in the optical axis direction with respect to the support 20 of the movable body 100, and the outer connecting portion 852. Is connected to the fixed body 60.

  Further, when viewed from a direction orthogonal to the optical axis L, the rolling magnetic drive mechanism 600 is disposed at a position overlapping the support body 20 of the movable body 100. In this embodiment, the rolling magnetic drive mechanism 600 includes a magnet 610 fixed to the outer surface of the side plate portion 121 of the frame 120 via the yoke 630 on the other side −X in the X-axis direction of the movable body 100, and the magnet 610. And a coil 620 fixed to the fixed body 60 on the other side -X in the X-axis direction.

[Modification of Embodiment 5]
FIG. 17 is a schematic configuration diagram of an optical unit 300 according to a modification of the fifth embodiment of the present invention, and corresponds to an XY cross-sectional view of the optical unit 300.

  In the fifth embodiment, the rolling magnetic drive mechanism 600 is provided at only one place. However, as shown in FIG. 17, the rolling magnetic drive mechanism 600 is provided at a plurality of places and the optical axis L with respect to the movable body 100 is provided. The surrounding thrust may be increased. Specifically, an auxiliary member 150 extending on one side + Y and the other side −Y in the Y-axis direction is provided on the movable body 100 side, and outside the first support portion 801, the second support portion 802, and the fixed frame 68. Then, the magnet 610 is attached to the auxiliary member 150 via the yoke 630. The coil 620 of the rolling magnetic drive mechanism 600 is provided at a position facing the magnet 610 on the outer side in the Y-axis direction.

[Embodiment 6]
FIG. 18 is a schematic configuration diagram of an optical unit 300 according to Embodiment 6 of the present invention, and corresponds to an XY cross-sectional view of the optical unit 300.

  As shown in FIG. 18, in the optical unit 300 of the present embodiment, the movable body 100 is disposed inside the fixed body 60, and the first support mechanism 80 configured between the movable body 100 and the fixed body 60 is used. The movable body 100 is rotatably supported. Here, the first support mechanism 80 includes a rotation support portion 89 that supports the movable body 100 around the axis L0 extending along the optical axis L at a position separated from the optical axis L, and a mechanical spring 85. The rolling magnetic drive mechanism 600 rotates the movable body 100 about the axis L0 to rotate the optical module 10 about the optical axis L. In this embodiment, the axis L0 is separated from one side + X in the X-axis direction with respect to the optical axis L, and the flexible wiring board 1800 is drawn out to one side + X in the X-axis direction. Further, the rolling magnetic drive mechanism 600 is arranged at a position overlapping the support 20 of the movable body 100 when viewed from the direction orthogonal to the optical axis L.

  Here, the movable body 100 includes a frame 160 that holds the support body 20. The fixed body 60 includes a first fixed frame 65 and a second fixed frame 64 held by the first fixed frame 65, and the rotation support unit 89 includes the frame 160, the second fixed frame 64, and the like. It is configured between. A weight 180 held by the movable body 100 is provided on the opposite side of the axis L0 from the side where the support 20 (optical module 10) is located. Is approaching.

  Even in such a configuration, as a result of the movable body 100 rotating around the axis L0 extending along the optical axis L at a position separated from the optical axis L, the movable body 100 rotates relative to the optical axis L. Therefore, rolling can be corrected. Moreover, since the weight 180 is provided in the movable body 100 on the opposite side to the side where the support body 20 (optical module 10) is located with respect to the axis L0, the position of the center of gravity of the movable body 100 and the axis L0. You are approaching. Therefore, the movable body 100 can be smoothly rotated around the axis L0.

  In addition, since magnetic interference hardly occurs between the swinging magnetic drive mechanism 500 and the rolling magnetic drive mechanism 600, it is easy to control shake correction. Further, since the first support mechanism 80 has the mechanical spring 85, the optical module 10 receives the urging force of the mechanical spring 85 when the operation of the rolling magnetic drive mechanism 600 is stopped. Always kept at the home position. Therefore, the same effects as those of the first embodiment are obtained, such as easy control of correction in the rolling direction.

(Specific Configuration Example of Optical Unit 300 According to Embodiment 6)
FIG. 19 is a perspective view illustrating an example of a specific configuration of the optical unit 300 according to Embodiment 6 of the present invention. FIGS. 19A and 19B are views of the optical unit 300 viewed from the front side in the optical axis direction. It is a perspective view at the time, and an exploded perspective view. FIG. 20 is an explanatory view showing the configuration of the optical unit 300 shown in FIG. 19 on the fixed body 60 side, and FIGS. 20A and 20B are an exploded perspective view of the fixed body 60 side and a more detailed disassembly. FIG. FIG. 21 is an exploded perspective view showing the configuration of the rotation support portion 89 and the like configured in the optical unit 300 shown in FIG.

  As shown in FIGS. 19, 20, and 21, in the optical unit 300 of this embodiment, in the movable body 100, the support body 20 is held by a frame 160. The fixed body 60 has a first fixed frame 65 that covers the periphery of the movable body 100 inside the unit case 66, and a rectangular frame shape that is fixed to one end + X end of the first fixed frame 65 in the X-axis direction. A second fixed frame 64 and a cover 650 fixed to the unit case 66 so as to cover the movable body 100 with one side + X in the X-axis direction are provided. In this embodiment, the first fixed frame 65 includes a bottom plate portion 654 that overlaps one side + Z in the Z-axis direction of the movable body 100 and a side plate portion 651 that is bent at the end of the bottom plate portion 654 on the other side −X in the X-axis direction. And a side plate portion 652 bent at the end of the bottom plate portion 654 at one side + Y in the Y-axis direction, and a side plate portion 653 bent at the end of the bottom plate portion 654 at the other side -Y in the Y-axis direction. Yes. In a state where the first fixed frame 65 is housed inside the unit case 66, the coil 620 of the rolling magnetic drive mechanism 600 is disposed on the inner side of the unit case 66 on the one side + X end in the X-axis direction. The magnet 610 of the rolling magnetic drive mechanism 600 is fixed to each of two surfaces that face each other in the Y-axis direction among the inner surfaces of the unit case 66. The second fixed frame 64 is fixed to the end face of one side + X in the X-axis direction of the side plate portions 652 and 653 with a screw in a state in which the outer connecting portion 852 of the mechanical spring 85 is sandwiched between the second fixed frame 64 and the first fixed frame 65. ing.

  In the present embodiment, the first support mechanism 80 includes a rotation support portion 89 that supports the movable body 100 around the axis L0 extending along the optical axis L at a position separated from the optical axis L, and a mechanical spring 85. Have. In configuring the rotation support unit 89, the rotation support unit 89 is configured between the second fixed frame 64 and the frame 160 as described below.

  First, the second fixed frame 64 is formed with spherical holding portions 641a and 642a inwardly at the centers of the side portions 641 and 642 extending in the Y-axis direction at positions separated in the Z-axis direction. Spheres 645 and 646 are fixed to 641a and 642a.

  The frame 160 has a structure in which rectangular frames 169a and 169b provided at positions separated in the Z-axis direction are connected by connecting portions 169c and 169d extending in the Z-axis direction, and connecting plates 161 and 164. The support 20 is held inside. In this embodiment, the connecting portions 169c and 169d are located on the other side −X in the X-axis direction, and the connecting plates 161 and 164 are located on the one side + X in the X-axis direction. Here, of the connecting plates 161 and 164, the connecting plate 161 located on the other side −Y in the Y-axis direction is bent from the end of the other side −Y in the Y-axis direction to the other side −X in the X-axis direction. The coil support plate 162 is provided, and a coil holding portion 163 that holds the coil 620 of the rolling magnetic drive mechanism 600 is formed on the outer surface of the coil support plate 162 (the other side in the Y-axis direction-Y surface). ing. Further, of the connecting plates 161 and 164, the connecting plate 164 located on one side + Y in the Y-axis direction has a coil support bent from one end + Y in the Y-axis direction to the other side -X in the X-axis direction. A plate 165 is provided, and a coil holding portion (not shown) for holding the coil 620 of the rolling magnetic drive mechanism 600 is formed on the outer surface of the coil support plate 165 (one surface in the Y-axis direction + Y surface). Yes. For this reason, the coil 620 faces the magnet 610.

  In addition, in the rectangular frame 169a located on one side + Z in the Z-axis direction, a connecting portion 166 that holds the receiving plate 168a is provided at the center of the side portion 169e that extends in the Y-axis direction on the one side + X in the X-axis direction. A concave receiving surface with which the sphere 645 abuts is formed on the outer surface of the receiving plate 168a (one side in the Z-axis direction + Z surface). Further, in the rectangular frame 169b located on the other side −Z in the Z-axis direction, a connecting portion 167 that holds the receiving plate 168b is provided at the center of the side portion 169f that extends in the Y-axis direction on the one side + X in the X-axis direction. A concave receiving surface with which the sphere 646 abuts is formed on the outer surface of the receiving plate 168b (the other side in the Z-axis direction—the surface of Z). Here, the spheres 645 and 646 are at positions spaced from the optical axis L in the X-axis direction and are on the axis L0. Thus, the rotation support part 89 using the spheres 645 and 646 is configured.

  In the movable body 100, a weight 180 is fixed to one surface + X surface in the X-axis direction of the support body 20. The weight 180 passes between the rectangular frames 169a and 169b and the connecting plates 161 and 164 and is a frame. It protrudes from 160 to one side + X in the X-axis direction.

[Modification of Embodiment 6]
FIG. 22 is a schematic configuration diagram of an optical unit 300 according to a modification of the sixth embodiment of the present invention, and corresponds to an XY cross-sectional view of the optical unit 300.

  In the sixth embodiment, the rotation support unit 89 is configured using the spheres 645 and 646. However, as illustrated in FIG. 22, the rotation support unit 89 may be configured using the shaft 895 and the shaft hole 896. . In the sixth embodiment, the coil 620 is provided on the movable body 100 side and the magnet 610 is provided on the fixed body 60 side. However, as shown in FIG. The magnet 610 may be provided, and the coil 620 may be provided on the fixed body 60 side.

[Other examples of magnetic drive mechanism for rolling]
FIG. 23 is an explanatory diagram of a rolling magnetic drive mechanism 600 that can be employed in the optical unit 300 to which the present invention is applied. In disposing the rolling magnetic drive mechanism 600 around the optical axis L, as shown in FIG. 23, four or more pairs, for example, eight pairs of magnets 610 and coils 620 may be used. As for the magnet 610, a flat magnet 610 may be used as shown in FIG. 23A, or a magnet 610 curved in an arc shape may be used as shown in FIG. Good.

[Other embodiments]
In any of the above embodiments, the magnet 610 and the coil 620 face each other in the direction orthogonal to the optical axis L, and the plate magnet 610 and the coil 620 face each other in the optical axis direction. Any of these may be adopted. Also, a configuration in which a magnet 610 is provided on the movable body 100 side, a coil 620 is provided on the fixed body 60 side, and a configuration in which a magnet 610 is provided on the fixed body 60 side and the coil 620 is provided on the movable body 100 side. Any of these may be adopted.

  In the above embodiment, the oscillating magnetic drive mechanism 500 is provided inside the movable body 100 and the rolling magnetic drive mechanism 600 is provided outside the movable body 100, but the rolling magnetic drive mechanism 600 is provided inside the movable body 100. The swinging magnetic drive mechanism 500 may be provided outside the movable body 100.

[Usage example of optical unit 300]
In the above embodiment, the example in which the present invention is applied to the optical unit 300 used in the camera-equipped mobile phone has been described. However, the present invention may be applied to the optical unit 300 used in a thin digital camera or the like. The optical unit 300 with a shake correction function to which the present invention is applied may be configured as an action camera or a wearable camera mounted on a helmet, a bicycle, a radio control helicopter, etc., in addition to a mobile phone, a digital camera, or the like. Such a camera is used for photographing in a situation in which a large shake occurs, but according to the present invention, since the shake can be corrected, a high-quality image can be obtained.

  In addition, the optical unit 300 to which the present invention is applied is fixed in a device such as a refrigerator that vibrates at regular intervals and can be remotely operated, so that information on the inside of the refrigerator can be obtained when going out, for example, when shopping. It can also be used for services that can be obtained. In such a service, since it is a camera system with a posture stabilization device, a stable image can be transmitted even if the refrigerator vibrates. Moreover, you may fix this apparatus to the device with which it wears when going to school, such as a child, a student's bag, a school bag, or a hat. In this case, when the surroundings are photographed at regular intervals and the image is transferred to a predetermined server, the guardian or the like can observe the image in a remote place to ensure the safety of the child. In such an application, a clear image can be taken even if there is vibration during movement without being aware of the camera. If a GPS is installed in addition to the camera module, the location of the target person can be acquired at the same time. In the event of an accident, the location and situation can be confirmed instantly.

  Furthermore, if the optical unit 300 to which the present invention is applied is mounted at a position where the front can be photographed in an automobile, it can be used as an in-vehicle monitoring device such as a drive recorder. Further, the optical unit 300 to which the present invention is applied may be mounted at a position where the front of the vehicle can be photographed, and peripheral images may be automatically photographed at regular intervals and automatically transferred to a predetermined server. Further, by distributing this image in conjunction with traffic jam information such as a road traffic information communication system, the traffic jam status can be provided in more detail. According to such a service, it is possible to record the situation at the time of an accident or the like by an unintentional third party and use it for inspection of the situation as in the case of a drive recorder mounted on a car. In addition, a clear image can be acquired without being affected by the vibration of the automobile. In such an application, when the power is turned on, a command signal is output to the control unit, and shake control is started based on the command signal.

  In addition, the optical unit 300 to which the present invention is applied may be applied to shake correction of an optical device that emits light, such as a portable or vehicle-mounted projection display device or a direct-view display device. Further, it may be used for observation without using an auxiliary fixing device such as a tripod for observation at a high magnification such as an astronomical telescope system or a binoculars system. In addition, by using a sniper rifle or a gun barrel such as a tank, the posture can be stabilized against vibration at the time of triggering, so that the accuracy of hitting can be improved.

1a Lens (optical element)
DESCRIPTION OF SYMBOLS 10 Optical module 20 Support body 60 Fixed body 66 Unit case (fixed body)
80 First support mechanism 81, 82, 84 Ball bearing 85 Mechanical spring 88 Intermediate support member 89 Rotating support unit 100 Movable body 300 Optical unit 500 Oscillating magnetic drive mechanism 600 Rolling magnetic drive mechanism 610 Magnet 620 Coil 801 First support Portion 802 Second Support L Optical Axis L0 Axis L1 First Axis L2 Second Axis

Claims (22)

An optical module for holding an optical element;
A fixed body,
A rocking magnetic drive mechanism that rocks the optical module with respect to the fixed body;
A first support mechanism for rotatably supporting the optical module around an optical axis;
A rolling magnetic drive mechanism that is provided separately from the swinging magnetic drive mechanism, and that rotates the optical module around an optical axis;
Have
The optical unit, wherein the first support mechanism includes a mechanical spring that makes the optical module elastically supported by the fixed body. The optical module, a support body surrounding the optical module, and a movable body including a second support mechanism that is supported by the support body so that the optical module can swing inside the support body. And
The swing magnetic drive mechanism swings the optical module with respect to the support in the movable body,
The rolling magnetic drive mechanism rotates the optical module around the optical axis by rotating the movable body around the optical axis,
The first support mechanism supports the optical module through the support so as to be rotatable around the optical axis,
The optical unit according to claim 1, wherein the mechanical spring is connected to the support and the fixed body.   The optical unit according to claim 2, wherein the first support mechanism includes a ball bearing arranged so as to surround the optical axis. The ball bearing is disposed on the rear side in the optical axis direction with respect to a portion where the optical module and the swinging magnetic drive mechanism are disposed in the movable body,
When viewed from a direction perpendicular to the optical axis, the rolling magnetic drive mechanism is disposed at a position overlapping the portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed. The optical unit according to claim 3.   The optical unit according to claim 4, wherein the mechanical spring is disposed on the rear side in the optical axis direction with respect to the ball bearing. When viewed from a direction perpendicular to the optical axis, the ball bearing is disposed at a position overlapping the portion of the movable body where the optical module and the oscillating magnetic drive mechanism are disposed,
The said rolling magnetic drive mechanism is arrange | positioned in the said optical axis direction rear side with respect to the part in which the said optical module and the said rocking magnetic drive mechanism are arrange | positioned in the said movable body. 4. The optical unit according to 3.   The mechanical spring is disposed between the rolling magnetic drive mechanism in a direction in which the optical axis extends and a portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed. The optical unit according to claim 6. The first support mechanism includes a pivot portion that rotatably supports the movable body around the optical axis on the rear side in the optical axis direction,
The optical unit according to claim 3, wherein the ball bearing supports the movable body between the ball bearing and the pivot portion on a front side in the optical axis direction.   The optical unit according to claim 8, wherein the pivot portion is in contact with the movable body with elasticity.   The rolling magnetic drive mechanism overlaps a portion of the movable body where the optical module and the swinging magnetic drive mechanism are arranged when viewed from a direction orthogonal to the optical axis. The optical unit according to 8 or 9.   The mechanical spring is disposed on the rear side in the optical axis direction with respect to a portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed. The optical unit according to any one of 10. When viewed from a direction perpendicular to the optical axis, the first support mechanism includes a ball bearing arranged in an arc around the movable body at a position overlapping the movable body,
The optical unit according to claim 2, wherein the mechanical spring biases the movable body toward a side where the ball bearing is located in a direction orthogonal to the optical axis. The mechanical spring is a leaf spring;
The engagement protrusion with which the center of the direction orthogonal to the said optical axis of the said plate spring engages is formed in the position which contact | connects the said plate spring in the side surface of the said movable body. Optical unit.   The rolling magnetic drive mechanism includes the ball bearing in a position overlapping with a portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed when viewed from a direction orthogonal to the optical axis. 14. The optical unit according to claim 12, wherein the optical unit is disposed on a side perpendicular to an imaginary line connecting a center of the circular arc and a center of the mechanical spring.   The first support mechanism includes an intermediate support member and the intermediate support member so that the movable body can rotate around the first axis at two locations separated in an extending direction of the first axis that obliquely intersects the optical axis. The intermediate support member is in the second axis line at two locations that are separated from each other in the extending direction of the second support line that obliquely intersects the optical axis and the first axis line. The optical unit according to claim 2, further comprising: a second support portion that is supported by the fixed body so as to be rotatable around.   When viewed from a direction orthogonal to the optical axis, the rolling magnetic drive mechanism is disposed at a position overlapping the portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed. The optical unit according to claim 15.   16. The mechanical spring is disposed on the rear side in the optical axis direction with respect to a portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed. The optical unit according to 16. The first support mechanism rotatably supports the movable body around an axis extending along the optical axis at a position spaced from the optical axis;
The optical unit according to claim 2, wherein the rolling magnetic drive mechanism rotates the movable body around the axis to rotate the optical module around the optical axis.   The optical unit according to claim 18, wherein a weight held by the movable body is provided on a side opposite to a side where the optical module is located with respect to the axis.   When viewed from a direction orthogonal to the optical axis, the rolling magnetic drive mechanism is disposed at a position overlapping the portion of the movable body where the optical module and the swinging magnetic drive mechanism are disposed. The optical unit according to claim 18 or 19, characterized in that:   In the rolling magnetic drive mechanism, a coil disposed on one side of the optical module side and the fixed body side and a magnet that generates a magnetic field linked to the coil are orthogonal to the optical axis. The optical unit according to any one of claims 1 to 20, wherein the optical units face each other in a direction in which the optical units are arranged.   In the rolling magnetic drive mechanism, the optical axis extends between a coil disposed on one side of the optical module side and the fixed body side, and a magnet that generates a magnetic field linked to the coil. The optical unit according to any one of claims 1 to 20, wherein the optical units are opposed to each other in the direction in which the optical unit is positioned.

Images