WO2015104902A1 - Drive unit and imaging device - Google Patents

Drive unit and imaging device Download PDF

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Publication number
WO2015104902A1
WO2015104902A1 PCT/JP2014/080508 JP2014080508W WO2015104902A1 WO 2015104902 A1 WO2015104902 A1 WO 2015104902A1 JP 2014080508 W JP2014080508 W JP 2014080508W WO 2015104902 A1 WO2015104902 A1 WO 2015104902A1
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WO
WIPO (PCT)
Prior art keywords
support
coupled
drive unit
unit according
point
Prior art date
Application number
PCT/JP2014/080508
Other languages
French (fr)
Japanese (ja)
Inventor
篤広 野田
Original Assignee
コニカミノルタ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by コニカミノルタ株式会社 filed Critical コニカミノルタ株式会社
Publication of WO2015104902A1 publication Critical patent/WO2015104902A1/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0075—Arrays characterized by non-optical structures, e.g. having integrated holding or alignment means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0075—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. increasing, the depth of field or depth of focus

Definitions

  • the present invention relates to a drive unit and an imaging apparatus.
  • the lens may be moved in parallel for adjusting the focal length, adjusting the focal point, etc. in a driving unit such as a lens unit.
  • a parallel guide and an actuator are required.
  • the parallel guide guides the lens in the driving direction while maintaining the posture of the lens.
  • the actuator applies a force that drives the lens in the driving direction to the lens.
  • the parallel guide include a parallel guide including a leaf spring, a parallel guide including a guide shaft, and a parallel guide including a link member.
  • the actuator include a shape memory alloy actuator, a bimetal actuator, a voice coil motor actuator, and a piezoelectric actuator.
  • the planar shape of the lens is often circular, and the planar shape of the lens unit is often rectangular. For this reason, both or one of the parallel guide and the actuator are often installed at the four corners of the lens unit in which a relatively large empty space exists. For example, in the invention described in Patent Document 1, actuators are installed at the four corners of the lens unit.
  • the driven body is a quadrangular object such as a multi-array lens
  • the parallel guide and / or actuator are installed at the four corners of the lens unit as in the conventional case, the space cannot be used effectively, and the lens The unit becomes larger.
  • the present invention is made to solve this problem.
  • the problem to be solved by the present invention is to reduce the size of the drive unit when the driven body includes a rectangular object.
  • the drive unit includes a support, a driven body, a link mechanism, and an actuator.
  • the driven body is driven in the driving direction by the force applied by the actuator's power point to the operating point of the driven body.
  • the driven body includes a quadrangular object that is quadrangular when viewed from the driving direction.
  • the link mechanism includes two or more unit mechanisms. Each of the two or more unit mechanisms includes a link member, a first support portion, and a second support portion.
  • the first support portion is coupled to the support and supports the first supported portion of the link member so as to be rotatable about the first rotation axis.
  • the second support portion is coupled to the first side surface of the quadrangular object, and supports the second supported portion of the link member so as to be rotatable around the second rotation axis.
  • the first rotation axis is perpendicular to the driving direction.
  • the second rotation axis is parallel to the first rotation axis.
  • the link member extends along the first side surface of the quadrangular object.
  • the actuator extends along the second side surface of the rectangular object.
  • the drive unit includes a support, a driven body, a parallel spring, and an actuator.
  • the driven body is driven in the driving direction by the force applied by the actuator's power point to the operating point of the driven body.
  • the driven body includes a quadrangular object that is quadrangular when viewed from the driving direction.
  • the parallel spring includes a spring.
  • the first coupling portion of the spring is coupled to the coupled portion of the support.
  • the second coupling portion of the spring is coupled to the coupled portion of the driven body and is movable in the driving direction by elastic deformation of the parallel spring.
  • the spring extends along the first side surface of the rectangular object.
  • the actuator extends along the second side surface of the rectangular object.
  • the link member and the actuator are arranged by effectively utilizing the space along the side surface of the rectangular object, and the drive unit can be reduced in size.
  • the parallel spring and the actuator are arranged using the space along the side surface of the rectangular object, and the drive unit can be downsized.
  • the first embodiment relates to a lens unit (drive unit).
  • FIG. 1 to 3 schematically show the lens unit according to the first embodiment.
  • FIG. 1 is a top view.
  • 2 and 3 are side views.
  • the lens unit 100 of the first embodiment includes a support 103, a driven body 104, a link mechanism 105, a link mechanism 106, and a plate-shaped shape memory alloy (SMA) actuator 107.
  • the lens unit 100 may include components other than these components. The number of link mechanisms provided in the lens unit 100 may be increased or decreased.
  • the support body 103 includes a support plate 110, a support bar 111, a support bar 112, and a support bar 113.
  • the support plate 110 may be replaced with a structure that is not a plate. All or a part of the support bar 111, the support bar 112, and the support bar 113 may be replaced with a structure that is not a bar.
  • the support body 103 supports the driven body 104 via the link mechanism 105, the link mechanism 106, and the plate-like SMA actuator 107.
  • the driven body 104 includes a multi-array lens 115 and a lens holder 116.
  • the driven body 104 may include components other than these components.
  • the driven body 104 may include a lens that is not a multi-array lens instead of or in addition to the multi-array lens 115.
  • the lens holder 116 may be omitted.
  • the multi-array lens 115 includes 16 lenses 118.
  • the 16 lenses 118 are arranged in a matrix in a direction perpendicular to the drive direction 121.
  • the number of rows in the matrix array is four.
  • the number of columns in the matrix array is 4. Both or one of the number of rows and the number of columns of the matrix array may be increased or decreased.
  • the multi-array lens 115 includes m ⁇ n lenses.
  • the m ⁇ n lenses are arranged in a matrix in a direction perpendicular to the driving direction 121.
  • the number of rows in the matrix array is m.
  • the number of columns in the matrix array is n.
  • m and n are natural numbers.
  • m ⁇ n is a natural number of 2 or more.
  • the lens holder 116 includes a rectangular object 124 and a protrusion 125.
  • the quadrangular object 124 has a quadrangular shape when viewed from the driving direction 121 and includes a side surface 128, a side surface 129, a side surface 130, and a side surface 131.
  • the side surface 128, the side surface 129, the side surface 130, and the side surface 131 are oriented in a direction perpendicular to the driving direction 121.
  • the side surface 129 faces a direction different from the side surface 128 by 90 °.
  • the side surface 130 is a facing surface of the side surface 129.
  • Side 131 is the opposite of side 128.
  • the side surface 128, the side surface 129, the side surface 130, and the side surface 131 belong to the lens holder 116.
  • the side surface 128, the side surface 129, the side surface 130, and the side surface 131 may belong to the multi-array lens 115.
  • the lens holder 116 holds the multi-array lens 115.
  • An object is regarded as a quadrangular object not only when it is a perfect rectangle when viewed from the driving direction 121 but also when it is substantially a rectangle. For example, when a corner portion of an object is chamfered or when a part of a side surface of the object is a gently curved surface, the object is regarded as a quadrangular object.
  • the link mechanism 105 includes two unit mechanisms 134.
  • the link mechanism 106 includes two unit mechanisms 134.
  • the number of unit mechanisms provided in the link mechanism 105 may be increased.
  • the number of unit mechanisms provided in the link mechanism 106 may be increased.
  • Each of the two unit mechanisms 134 belonging to the link mechanism 105 and the two unit mechanisms 134 belonging to the link mechanism 106 includes a link member 137, a support portion 138, and a support portion 139.
  • Each of the two unit mechanisms 134 belonging to the link mechanism 105 and the two unit mechanisms 134 belonging to the link mechanism 106 may include components other than these components.
  • the link member 137 is a flat bar-like object, and includes a flat bar-shaped part 142, a supported part 143, and a supported part 144.
  • the supported portion 143 and the supported portion 144 are at both ends of the flat rod-shaped portion 142.
  • the link member 137 may be replaced with a rod-shaped object that is not a flat bar-shaped object.
  • the support portion 138 belonging to the link mechanism 105 is coupled to the support rod 111 and supports the supported portion 143 belonging to the link mechanism 105 so as to be rotatable around the first rotation axis.
  • the support part 139 belonging to the link mechanism 105 is coupled to the side surface 128 and supports the supported part 144 belonging to the link mechanism 105 so as to be rotatable around the second rotation axis.
  • the two link members 137 belonging to the link mechanism 105 are parallel to each other.
  • the two unit mechanisms 134 belonging to the link mechanism 105 are arranged apart from each other in the driving direction 121.
  • the support portion 138 belonging to the link mechanism 106 is coupled to the support rod 112 and supports the supported portion 143 belonging to the link mechanism 106 so as to be rotatable around the third rotation axis.
  • the support portion 139 belonging to the link mechanism 106 is coupled to the side surface 131 and supports the supported portion 144 belonging to the link mechanism 106 so as to be rotatable around the fourth rotation axis.
  • the two link members 137 belonging to the link mechanism 106 are parallel to each other.
  • the two unit mechanisms 134 belonging to the link mechanism 106 are arranged apart from each other in the driving direction 121.
  • the attitude of the driven body 104 is maintained, and the driven body 104 is translated in the driving direction 121.
  • the link mechanism 105 and the link mechanism 106 function as a parallel guide.
  • the driven body 104 is guided in the driving direction 121 by the two link mechanisms 105 and 106. This facilitates maintaining the posture of the driven body 104.
  • the link mechanism 105 is installed along the side surface 128, and the link mechanism 106 is installed along the side surface 131 that faces the side surface 128. This makes it easier to maintain the posture of the driven body 104.
  • the first rotation axis, the second rotation axis, the third rotation axis, and the fourth rotation axis are perpendicular to the drive direction 121 and are parallel to each other.
  • the protrusion 125 has an action point 147 to which a force is applied.
  • the protrusion 125 is provided on the side surface 129 and is provided between the side surface 128 and the side surface 131.
  • the multi-array lens 115 may have the action point 147.
  • a structure other than the protrusion 125 may have the action point 147.
  • the plate-like SMA actuator 107 has a force point 148 for applying a force. The force point 148 hits the action point 147.
  • the shape of the plate-like SMA actuator 107 changes from the flat shape shown in FIGS. 2 and 3 to the curved shape shown in FIGS. 4 and 5.
  • an electric current may be passed through the plate-like SMA actuator 107 to cause the plate-like SMA actuator 107 to self-heat, or a heater that is thermally coupled to the plate-like SMA actuator 107.
  • the plate-like SMA actuator 107 may be heated by the heater. Due to the shape change, the force point 148 moves from a position relatively close to the support plate 110 shown in FIGS. 2 and 3 to a position relatively far from the support plate 110 shown in FIGS.
  • a force toward the driving direction 121 is applied to the action point 147.
  • the driven member 104 is driven in the driving direction 121 by the force applied by the force point 148 to the action point 147.
  • the drive direction 121 is a direction in which the driven body 104 is moved away from the support plate 110 and is parallel to the optical axis of the multi-array lens 115.
  • the driving direction 121 may be a direction in which the driven body 104 approaches the support body 103.
  • the focus position of the lens unit 100 is changed by driving the driven body 104.
  • the plate-like SMA actuator 107 may be replaced with another type of actuator.
  • the plate-like SMA actuator 107 may be replaced with a linear SMA actuator, a bimetal actuator, or the like.
  • the link member 137 belonging to the link mechanism 105 is an elongated shape, and extends along the side surface 128.
  • the link member 137 belonging to the link mechanism 106 is an elongated object, and extends along the side surface 131.
  • the plate-like SMA actuator 107 is an elongated object and extends along the side surface 129.
  • the side surface 129 faces the direction different from the side surface 128 and the side surface 131 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 124 and contributes to downsizing the lens unit 100.
  • the plate-like SMA actuator 107 may extend along the side surface 128 or the side surface 131.
  • the support rod 111 and the support rod 112 face the side surface 130 when viewed from the driving direction 121.
  • the support rod 111 and the support rod 112 do not protrude from the range where the driven body 104 exists in the direction perpendicular to the side surface 128 and the side surface 131. This contributes to reducing the size of the lens unit 100 in the direction perpendicular to the side surface 128 and the side surface 130.
  • the support bar 113 is installed along the side separating the side surface 128 and the side surface 129. The place where the support bar 113 is installed may be changed.
  • the plate-like SMA actuator 107 has a coupling point 151. The coupling point 151 is coupled to the support bar 113.
  • the side surface 129 on which the protrusion 125 is provided is closer to the support portion 139 than the side surface 130 that faces the side surface 129. This contributes to making it difficult to generate a moment that breaks the posture of the driven body 104, and contributes to making it easier to maintain the posture of the driven body 104.
  • the lens unit 100 is incorporated in the micro camera unit.
  • the lens unit 100 may be incorporated in a device other than the micro camera unit.
  • the second embodiment relates to a lens unit.
  • the point from which the lens unit of 2nd Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated.
  • description about 1st Embodiment is used for 2nd Embodiment.
  • the description about embodiments other than the first embodiment may be incorporated into the second embodiment.
  • FIG. 6 Schematic diagrams from FIG. 6 to FIG. 8 show the lens unit 200 of the second embodiment.
  • FIG. 6 is a top view. 7 and 8 are side views.
  • the lens unit 200 includes a support 203, a driven body 204, a link mechanism 205, a link mechanism 206, and a plate-like SMA actuator 207.
  • the support body 203 includes a support plate 210, a support bar 211, a support bar 212, and a support bar 213.
  • the driven body 204 includes a multi-array lens 215 and a lens holder 216.
  • the lens holder 216 includes a rectangular object 224 and a protrusion 225.
  • the quadrangular object 224 has a side surface 228, a side surface 229, a side surface 230, and a side surface 231.
  • the link mechanism 205 includes two unit mechanisms 234.
  • the link mechanism 206 includes two unit mechanisms 234.
  • Each of the two unit mechanisms 234 belonging to the link mechanism 205 and the two unit mechanisms 234 belonging to the link mechanism 206 includes a link member 237, a support portion 238, and a support portion 239.
  • the link member 237 includes a flat bar portion 242, a supported portion 243, and a supported portion 244.
  • the support portion 238 belonging to the link mechanism 205 is coupled to the support rod 211 and supports the supported portion 243 belonging to the link mechanism 205 so as to be rotatable around the first rotation axis.
  • the support portion 239 belonging to the link mechanism 205 is coupled to the side surface 231 and supports the supported portion 244 belonging to the link mechanism 205 so as to be rotatable around the second rotation axis.
  • the support part 238 belonging to the link mechanism 206 is coupled to the support bar 212 and supports the supported part 243 belonging to the link mechanism 206 so as to be rotatable around the third rotation axis.
  • the support portion 239 belonging to the link mechanism 206 is coupled to the side surface 228 and supports the supported portion 244 belonging to the link mechanism 206 so as to be rotatable around the fourth rotation axis.
  • the driven body 204 is guided in the driving direction 221 by the two link mechanisms 205 and the link mechanism 206. This facilitates maintaining the attitude of the driven body 204.
  • the link mechanism 205 is installed along the side surface 231, and the link mechanism 206 is installed along the side surface 228 that faces the side surface 231. This makes it easier to maintain the attitude of the driven body 204.
  • the protrusion 225 has an action point 247 to which a force is applied.
  • the protrusion 225 is provided on the side surface 229.
  • the plate-like SMA actuator 207 has a force point 248 for applying a force.
  • the force point 248 hits the action point 247.
  • the shape of the plate-like SMA actuator 207 changes from a flat shape to a curved shape. Due to the change in shape, the force point 248 moves from a position relatively close to the support plate 210 to a position relatively distant from the support plate 210, and the force point 248 applies a force in the driving direction 221 to the action point 247.
  • the driven member 204 is driven in the driving direction 221 by the force applied by the force point 248 to the action point 247.
  • the link member 237 belonging to the link mechanism 205 is an elongated shape, and extends along the side surface 231.
  • the link member 237 belonging to the link mechanism 206 is an elongated object, and extends along the side surface 228.
  • the plate-like SMA actuator 207 is an elongated object and extends along the side surface 229.
  • the side surface 229 faces a direction different from the side surface 228 and the side surface 231 by 90 °. This contributes to the effective use of the space along the side surface of the rectangular object 224, and contributes to the miniaturization of the lens unit 200.
  • the support bar 211 and the support bar 212 face the side surface 229 when viewed from the driving direction 221.
  • the support bar 211 and the support bar 212 do not protrude from the range where the driven body 204 exists in the direction perpendicular to the side surface 228 and the side surface 231. This contributes to reducing the size of the lens unit 200 in the direction perpendicular to the side surface 228 and the side surface 231.
  • the support rod 213 faces the side surface 229 when viewed from the driving direction 221.
  • the plate-like SMA actuator 207 has a coupling point 251.
  • the coupling point 251 is coupled to the support bar 213.
  • the side surface 229 on which the protrusion 225 is provided is farther from the support portion 239 than the side surface 230 that is the opposite side of the side surface 229.
  • the plate-like SMA actuator 207 extends along the side surface 229.
  • the support bar 211 and the support bar 212 face the side surface 229 when viewed from the driving direction 221.
  • the plate-like SMA actuator 207, the support bar 211, and the support bar 212 are concentrated along the side surface 229.
  • the side surface 230 that is the opposite side of the side surface 229 is opened. This contributes to reducing the size of the lens unit 200 in the direction perpendicular to the side surface 229.
  • Third Embodiment A third embodiment relates to a lens unit. Below, the point from which the lens unit of 3rd Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 1st Embodiment is used for 3rd Embodiment. The description about embodiments other than the first embodiment may be incorporated into the third embodiment.
  • FIG. 9 to 11 schematically show the lens unit of the third embodiment.
  • FIG. 9 is a top view.
  • 10 and 11 are side views.
  • the lens unit 300 of the third embodiment includes a support 303, a driven body 304, a link mechanism 305, a link mechanism 306, and a linear SMA actuator 307.
  • the support 303 includes a support plate 310, a support bar 311, a support bar 312, a support bar 313, a support bar 314, a screw 354, and a screw 355.
  • the driven body 304 includes a multi-array lens 315 and a lens holder 316.
  • the lens holder 316 includes a rectangular object 324 and a collar 325.
  • the quadrangular object 324 has a quadrangular shape when viewed from the driving direction 321 and includes a side surface 328, a side surface 329, a side surface 330, and a side surface 331.
  • the link mechanism 305 includes two unit mechanisms 334.
  • the link mechanism 306 includes two unit mechanisms 334.
  • Each of the two unit mechanisms 334 belonging to the link mechanism 305 and the two unit mechanisms 334 belonging to the link mechanism 306 includes a link member 337, a support portion 338, and a support portion 339.
  • the link member 337 includes a flat bar portion 342, a supported portion 343, and a supported portion 344.
  • the support portion 338 belonging to the link mechanism 305 is coupled to the support bar 311 and supports the supported portion 343 belonging to the link mechanism 305 so as to be rotatable around the first rotation axis.
  • the support portion 339 belonging to the link mechanism 305 is coupled to the side surface 328 and supports the supported portion 344 belonging to the link mechanism 305 so as to be rotatable around the second rotation axis.
  • the support portion 338 belonging to the link mechanism 306 is coupled to the support bar 312 and supports the supported portion 343 belonging to the link mechanism 306 so as to be rotatable around the third rotation axis.
  • the support portion 339 belonging to the link mechanism 306 is coupled to the side surface 331 and supports the supported portion 344 belonging to the link mechanism 306 so as to be rotatable around the fourth rotation axis.
  • the driven body 304 is guided in the driving direction 321 by the two link mechanisms 305 and the link mechanism 306. This facilitates maintaining the posture of the driven body 304.
  • the link mechanism 305 is installed along the side surface 328, and the link mechanism 306 is installed along the side surface 331 that faces the side surface 328. This makes it easier to maintain the posture of the driven body 304.
  • ⁇ 325 has an action point 347 where force is applied.
  • the collar 325 is provided on the side surface 329.
  • the linear SMA actuator 307 has a force point 348 that applies a force.
  • the force point 348 is at the center of the linear SMA actuator 307.
  • the linear SMA actuator 307 is stretched while being hooked on the hook 325.
  • the force point 348 hits the action point 347.
  • the linear SMA actuator 307 contracts in the length direction. In order to raise the temperature of the linear SMA actuator 307, a current is passed through the linear SMA actuator 307, and the linear SMA actuator 307 is self-heated. Due to the contraction, the force point 348 moves from a position relatively close to the support plate 310 to a position relatively distant from the support plate 310, and the force point 348 applies a force in the driving direction 321 to the action point 347.
  • the driven member 304 is driven in the driving direction 321 by the force applied by the force point 348 to the action point 347.
  • the link member 337 belonging to the link mechanism 305 is an elongated shape, and extends along the side surface 328.
  • the link member 337 belonging to the link mechanism 306 is an elongated shape, and extends along the side surface 331.
  • the linear SMA actuator 307 is an elongated shape and extends along the side surface 329.
  • the side surface 329 faces a direction different from the side surface 328 and the side surface 331 by 90 °. This contributes to the effective use of the space along the side surface of the rectangular object 324, and contributes to the miniaturization of the lens unit 300.
  • the support bar 311 and the support bar 312 are opposed to the side surface 330 when viewed in the driving direction 321.
  • the support bar 311 and the support bar 312 do not protrude from the range where the driven body 304 exists in the direction perpendicular to the side surface 328 and the side surface 331. This contributes to reducing the size of the lens unit 300 in the direction perpendicular to the side surface 328 and the side surface 331.
  • the support bar 313 is along a side separating the side surface 328 and the side surface 329.
  • the support bar 314 extends along a side separating the side surface 329 and the side surface 331.
  • the place where the support bar 313 and the support bar 314 are installed may be changed.
  • the linear SMA actuator 307 includes a coupling point 351a and a coupling point 351b.
  • the coupling point 351 a and the coupling point 351 b are at both ends of the linear SMA actuator 307.
  • the coupling point 351 a is screwed to the support bar 313 by a screw 354 and is fixed to the support bar 313.
  • the coupling point 351b is screwed to the support bar 314 by a screw 355 and fixed to the support bar 314.
  • Both or one of the coupling point 351a and the coupling point 351b may be fixed by other than screwing.
  • both or one of the connection points 351a and 351b may be fixed by adhesion, riveting, soldering, welding, or the like.
  • the side surface 329 on which the flange 325 is provided is closer to the support portion 339 than the side surface 330 that faces the side surface 329. This contributes to making it difficult to generate a moment that causes the posture of the driven body 304 to be lost, and contributes to making it easier to maintain the posture of the driven body 304.
  • the fourth embodiment relates to a lens unit.
  • the point from which the lens unit of 4th Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated.
  • description about 1st Embodiment is used for 4th Embodiment.
  • the description about embodiments other than the first embodiment may be incorporated into the fourth embodiment.
  • FIG. 12 is a top view.
  • 13 and 14 are side views.
  • the lens unit 400 of the fourth embodiment includes a support body 403, a driven body 404, a link mechanism 405, and a plate-like SMA actuator 407.
  • the support body 403 includes a support plate 410, a support bar 411, and a support bar 413.
  • the driven body 404 includes a multi-array lens 415 and a lens holder 416.
  • the lens holder 416 includes a rectangular object 424 and a protrusion 425.
  • the rectangular object 424 has a side surface 428, a side surface 429, a side surface 430, and a side surface 431.
  • the link mechanism 405 includes two unit mechanisms 434.
  • Each of the two unit mechanisms 434 includes a link member 437, a support portion 438, and a support portion 439.
  • the link member 437 includes a flat bar portion 442, a supported portion 443, and a supported portion 444.
  • the support portion 438 is coupled to the support rod 411, and supports the supported portion 443 so as to be rotatable around the first rotation axis.
  • the support portion 439 is coupled to the side surface 428 and supports the supported portion 444 so as to be rotatable around the second rotation axis.
  • the driven body 404 is guided in the driving direction 421 by one link mechanism 405. This contributes to downsizing of the lens unit 400.
  • the protrusion 425 has an action point 447 where a force is applied.
  • the protrusion 425 is provided on the side surface 429 and is provided closer to the side surface 428.
  • the plate-like SMA actuator 407 has a force point 448 for applying a force.
  • the shape of the plate-like SMA actuator 407 changes from a flat shape to a curved shape. Due to the shape change, the force point 448 moves from a position relatively close to the support plate 410 to a position relatively distant from the support plate 410, and the force point 448 applies a force toward the driving point 447 in the driving direction 421.
  • the driven body 404 is driven in the driving direction 421 by the force applied by the force point 448 to the action point 447.
  • the link member 437 is an elongated shape and extends along the side surface 428.
  • the plate-like SMA actuator 407 has an elongated shape and extends along the side surface 429.
  • the side surface 429 faces a direction different from the side surface 428 by 90 °. This contributes to the effective use of the space along the side surface of the rectangular object 424 and contributes to the miniaturization of the lens unit 400.
  • the support rod 411 faces the side surface 430 when viewed in the driving direction 421.
  • the support bar 411 does not protrude from the range where the driven body 404 exists in the direction perpendicular to the side surface 428 and the side surface 431. This contributes to reducing the size of the lens unit 400 in the direction perpendicular to the side surface 428 and the side surface 431.
  • the support bar 413 is provided along the side that faces the side surface 429 and separates the side surface 429 and the side surface 431.
  • the plate-like SMA actuator 407 has a coupling point 451.
  • the coupling point 451 is coupled to the support bar 413.
  • the side surface 429 provided with the protrusion 425 is closer to the support portion 439 than the side surface 430 that is the opposite side of the side surface 429. This contributes to making it difficult to generate a moment that breaks the posture of the driven body 404 and to make it easier to maintain the posture of the driven body 404.
  • the fifth embodiment relates to a lens unit.
  • the point from which the lens unit of 5th Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated.
  • description about 1st Embodiment is used for 5th Embodiment.
  • the description about embodiments other than the first embodiment may be incorporated into the fifth embodiment.
  • FIG. 15 to 17 schematically show the lens unit of the fifth embodiment.
  • FIG. 15 is a top view.
  • 16 and 17 are side views.
  • the lens unit 500 of the fifth embodiment includes a support body 503, a driven body 504, a link mechanism 505, a link mechanism 506, and a plate-like SMA actuator 507.
  • the support body 503 includes a support plate 510, a support bar 511, a support bar 512, and a support bar 513.
  • the driven body 504 includes a multi-array lens 515 and a lens holder 516.
  • the lens holder 516 includes a rectangular object 524 and a protrusion 525.
  • the quadrangular object 524 has a side surface 528, a side surface 529, a side surface 530, and a side surface 531.
  • the link mechanism 505 includes two unit mechanisms 534.
  • the link mechanism 506 includes two unit mechanisms 534.
  • Each of the two unit mechanisms 534 belonging to the link mechanism 505 and the two unit mechanisms 534 belonging to the link mechanism 506 includes a link member 537, a support portion 538, and a support portion 539.
  • the link member 537 includes a flat bar portion 542, a supported portion 543, and a supported portion 544.
  • the support portion 538 belonging to the link mechanism 505 is coupled to the support rod 511 and supports the supported portion 543 belonging to the link mechanism 505 so as to be rotatable around the first rotation axis.
  • the support portion 539 belonging to the link mechanism 505 is coupled to the side surface 528 and supports the supported portion 544 belonging to the link mechanism 505 so as to be rotatable around the second rotation axis.
  • the support portion 538 belonging to the link mechanism 506 is coupled to the support rod 512, and supports the supported portion 543 belonging to the link mechanism 506 so as to be rotatable around the third rotation axis.
  • the support portion 539 belonging to the link mechanism 506 is coupled to the side surface 530 and supports the supported portion 544 belonging to the link mechanism 506 so as to be rotatable around the fourth rotation axis.
  • the driven body 504 is guided in the driving direction 521 by the two link mechanisms 505 and the link mechanism 506. This facilitates maintaining the attitude of the driven body 504.
  • the link mechanism 505 is installed along the side surface 528, and the link mechanism 506 is installed along the side surface 530 that faces a direction different from the side surface 528 by 90 °.
  • the projection 525 has an action point 547 where a force is applied.
  • the protrusion 525 is provided on the side surface 529.
  • the plate-like SMA actuator 507 has a force point 548 for applying a force. The force point 548 hits the action point 547.
  • the shape of the plate-like SMA actuator 507 changes from a flat shape to a curved shape. Due to the change in shape, the force point 548 moves from a position relatively close to the support plate 510 to a position relatively far from the support plate 510, and the force point 548 applies a force toward the driving point 547 in the driving direction 521.
  • the driven body 504 is driven in the driving direction 521 by the force applied by the force point 548 to the action point 547.
  • the link member 537 belonging to the link mechanism 505 is an elongated shape and extends along the side surface 528.
  • the link member 537 belonging to the link mechanism 506 is an elongated shape, and extends along the side surface 530.
  • the plate-like SMA actuator 507 has an elongated shape and extends along the side surface 529.
  • the side surface 529 faces in a direction different from the side surface 528 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 524, and contributes to downsizing the lens unit 500.
  • the support rod 511 faces the side surface 530 when viewed from the drive direction 521.
  • the support bar 511 does not protrude from the range where the driven body 504 exists in the direction perpendicular to the side surface 528 and the side surface 531. This contributes to reducing the size of the lens unit 500 in the direction perpendicular to the side surface 528 and the side surface 531.
  • the support rod 512 faces the side surface 531 when viewed from the drive direction 521.
  • the side surface 529 on which the protrusion 525 is provided is closer to the support portion 539 than the side surface 530 that is the opposite surface of the side surface 529. This contributes to making it difficult to generate a moment that breaks the posture of the driven body 504, and contributes to easily maintaining the posture of the driven body 504.
  • the sixth embodiment relates to a lens unit.
  • FIG. 18 and 19 show a lens unit according to the sixth embodiment.
  • FIG. 18 is a top view.
  • FIG. 19 is a side view.
  • the lens unit 600 of the sixth embodiment includes a support 603, a driven body 604, two parallel springs 605, and a plate-like SMA actuator 607.
  • the lens unit 600 may include components other than these components.
  • the number of parallel springs provided in the lens unit 600 may be increased or decreased.
  • the support body 603 includes a support plate 610, a support bar 611, and a support bar 612.
  • the support plate 610 may be replaced with a structure that is not a plate. A structure in which both or one of the support bar 611 and the support bar 612 is not a bar may be used.
  • the support bar 611 includes a coupled portion 615.
  • the support bar 612 includes a coupled portion 618.
  • the support body 603 supports the driven body 604 via two parallel springs 605 and a plate-like SMA actuator 607.
  • the driven body 604 includes a multi-array lens 621 and a lens holder 622.
  • the driven body 604 may include components other than these components.
  • the driven body 604 may include a lens that is not a multi-array lens instead of or in addition to the multi-array lens 621.
  • the lens holder 622 may be omitted.
  • the multi-array lens 621 includes 16 lenses 625.
  • the 16 lenses 625 are arranged in a matrix in a direction perpendicular to the driving direction 628.
  • the number of rows in the matrix array is four.
  • the number of columns in the matrix array is 4. Both or one of the number of rows and the number of columns of the matrix array may be increased or decreased.
  • the multi-array lens 621 includes m ⁇ n lenses.
  • the m ⁇ n lenses are arranged in a matrix in a direction perpendicular to the driving direction 628.
  • the number of rows in the matrix array is m.
  • the number of columns in the matrix array is n.
  • m and n are natural numbers.
  • m ⁇ n is a natural number of 2 or more.
  • the lens holder 622 includes a rectangular object 631, a protrusion 632, a coupled portion 633, and a coupled portion 634.
  • the quadrangular object 631 has a quadrangular shape when viewed from the driving direction 628 and includes a side surface 637, a side surface 638, a side surface 639 and a side surface 640.
  • the side surface 637, the side surface 638, the side surface 639, and the side surface 640 are oriented in a direction perpendicular to the driving direction 628.
  • the side surface 638 faces a direction different from the side surface 637 by 90 °.
  • the side surface 639 is a facing surface of the side surface 638.
  • the side surface 640 is a facing surface of the side surface 637.
  • the side surface 637, the side surface 638, the side surface 639, and the side surface 640 belong to the lens holder 622.
  • the side surface 637, the side surface 638, the side surface 639, and the side surface 640 may belong to the multi-array lens 621.
  • the lens holder 622 holds the multi-array lens 621.
  • An object is considered to be a quadrilateral object not only when it is a perfect rectangle when viewed from the driving direction 628 but also when it is substantially a rectangle. For example, when a corner portion of an object is chamfered or when a part of a side surface of the object is a gently curved surface, the object is regarded as a quadrangular object.
  • Each of the two parallel springs 605 includes a leaf spring 643 and a leaf spring 644.
  • the number of leaf springs provided in each of the two parallel springs 605 may be increased.
  • the two parallel springs 605 are separated from each other in the driving direction 628.
  • the plate spring 643 is a flat plate and includes a flat plate portion 647, a coupling portion 648, and a coupling portion 649.
  • the coupling portion 648 and the coupling portion 649 are at both ends of the flat plate portion 647.
  • the leaf spring 644 is a flat plate and includes a flat plate portion 652, a coupling portion 653, and a coupling portion 654.
  • the coupling part 653 and the coupling part 654 are at both ends of the flat plate-like part 652.
  • the leaf spring 643 may be replaced with a wire spring (suspension wire), and the leaf spring 644 may be replaced with a wire spring.
  • the coupling portion 648 is bonded to the coupled portion 615 and coupled to the coupled portion 615.
  • the coupling portion 649 is bonded to the coupled portion 633 and coupled to the coupled portion 633.
  • the coupling portion 653 is bonded to the coupled portion 618 and coupled to the coupled portion 618.
  • the coupling portion 654 is bonded to the coupled portion 634 and coupled to the coupled portion 634.
  • the coupling portion 649 can move in the driving direction 628 by elastic deformation of the leaf spring 643.
  • the coupling portion 654 can move in the driving direction 628 by elastic deformation of the leaf spring 644.
  • the two parallel springs 605 function as a parallel guide.
  • the driven body 604 is guided in the driving direction 628 by the two leaf springs 643 and the leaf springs 644. This facilitates maintaining the attitude of the driven body 604.
  • the leaf spring 643 is installed along the side surface 637
  • the leaf spring 644 is installed along the side surface 640, which is the opposite side of the side surface 637. This makes it easier to maintain the attitude of the driven body 604.
  • the protrusion 632 has an action point 657 to which a force is applied.
  • the protrusion 632 is provided on the side surface 638 and is provided between the side surface 637 and the side surface 640.
  • the multi-array lens 621 may have an action point 657.
  • a structure other than the protrusion 632 may have the action point 657.
  • the plate-like SMA actuator 607 has a force point 658 for applying a force. The force point 658 hits the action point 657.
  • the shape of the plate-like SMA actuator 607 changes from a flat shape to a curved shape.
  • a current may be passed through the plate-like SMA actuator 607 to cause the plate-like SMA actuator 607 to self-heat, or a heater thermally coupled to the plate-like SMA actuator 607
  • the plate-like SMA actuator 607 may be heated by the heater. Due to the change in shape, the force point 658 moves from a position relatively close to the support plate 610 to a position relatively far from the support plate 610, and the force point 658 applies a force toward the driving point 657 in the driving direction 628.
  • the driven body 604 is driven in the driving direction 628 by the force applied by the force point 658 to the action point 657.
  • the driving direction 628 is a direction in which the driven body 604 is moved away from the support plate 610 and is parallel to the optical axis of the multi-array lens 621.
  • the driving direction 628 may be a direction in which the driven body 604 approaches the support plate 610.
  • the focus position of the lens unit 600 is changed by driving the driven body 604.
  • the plate-like SMA actuator 607 may be replaced with another type of actuator.
  • the plate-like SMA actuator 607 may be replaced with a linear SMA actuator, a bimetal actuator, or the like.
  • the leaf spring 643 is an elongated object and extends along the side surface 637.
  • the leaf spring 644 is an elongated object and extends along the side surface 640.
  • the plate-like SMA actuator 607 has an elongated shape and extends along the side surface 638.
  • the side surface 638 faces in a direction different from the side surface 637 and the side surface 640 by 90 °. This contributes to effective utilization of the space along the side surface of the rectangular object 631 and contributes to downsizing the lens unit 600.
  • the plate-like SMA actuator 607 may extend along the side surface 637 or the side surface 640.
  • the support rod 611 and the support rod 612 face the side surface 639 when viewed from the drive direction 628.
  • the support bar 611 and the support bar 612 do not protrude from the range where the driven body 604 exists in the direction perpendicular to the side surface 637 and the side surface 640. This contributes to reducing the size of the lens unit 600 in the direction perpendicular to the side surface 637 and the side surface 640.
  • the side surface 638 where the protrusion 632 is provided is closer to the coupled portion 633 and the coupled portion 634 than the side surface 639 which is the opposite side of the side surface 638. This contributes to making it difficult to generate a moment that breaks the attitude of the driven body 604, and contributes to making it easier to maintain the attitude of the driven body 604.
  • the seventh embodiment relates to a lens unit.
  • the point from which the lens unit of 7th Embodiment differs from the lens unit of 6th Embodiment is mainly demonstrated.
  • description about 6th Embodiment is used for 7th Embodiment.
  • the description about embodiments other than the sixth embodiment may be incorporated into the seventh embodiment.
  • FIG 20 is a top view of the lens unit of the seventh embodiment.
  • the lens unit 700 of the seventh embodiment includes a support 703, a driven body 704, two parallel springs 705 (in FIG. 20, one of the two parallel springs 705). Only a plate-like SMA actuator 707 is shown.
  • the support body 703 includes a support plate 710, a support bar 711, and a support bar 712.
  • the support bar 711 includes a coupled portion 715.
  • the support bar 712 includes a coupled portion 718.
  • the driven body 704 includes a multi-array lens 721 and a lens holder 722.
  • the lens holder 722 includes a rectangular object 731, a protrusion 732, a coupled portion 733, and a coupled portion 734.
  • the quadrangular object 731 has a side surface 737, a side surface 738, a side surface 739 and a side surface 740.
  • Each of the two parallel springs 705 includes a leaf spring 743 and a leaf spring 744.
  • the plate spring 743 includes a flat plate portion 747, a coupling portion 748, and a coupling portion 749.
  • the leaf spring 744 includes a flat plate portion 752, a coupling portion 753, and a coupling portion 754.
  • the coupling unit 748 is coupled to the coupled unit 715.
  • the coupled portion 749 is coupled to the coupled portion 733.
  • the coupling portion 753 is coupled to the coupled portion 718.
  • the coupling portion 754 is coupled to the coupled portion 734.
  • the coupling portion 749 can move in the driving direction. Due to the elastic deformation of the leaf spring 744, the coupling portion 754 can move in the driving direction.
  • the driven body 704 is guided in the driving direction by two leaf springs 743 and a leaf spring 744. This facilitates maintaining the attitude of the driven body 704.
  • the leaf spring 743 is installed along the side surface 737
  • the leaf spring 744 is installed along the side surface 740, which is the opposite side of the side surface 737. This further facilitates maintaining the attitude of the driven body 704.
  • the protrusion 732 has an action point where force is applied.
  • the protrusion 732 is provided on the side surface 738.
  • the plate-like SMA actuator 707 has a force point for applying a force.
  • the force point is the point of action.
  • the shape of the plate-like SMA actuator 707 changes from a flat shape to a curved shape. Due to the shape change, the power point moves from a position relatively close to the support plate 710 to a position relatively far from the support plate 710, and the force point applies a force toward the driving direction to the action point.
  • the driven member 704 is driven in the driving direction by the force applied by the force point to the action point.
  • the plate spring 743 is an elongated shape and extends along the side surface 737.
  • the leaf spring 744 is an elongated shape and extends along the side surface 740.
  • the plate-like SMA actuator 707 is an elongated object and extends along the side surface 738.
  • the side surface 738 faces a direction different from the side surface 737 and the side surface 740 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 731 and contributes to downsizing the lens unit 700.
  • the support rod 711 faces the side surface 737 when viewed from the driving direction.
  • the support bar 712 faces the side surface 740 when viewed from the driving direction.
  • the support bar 711 and the support bar 712 do not protrude from the range where the driven body 704 exists in the direction perpendicular to the side surface 738 and the side surface 739. This contributes to reducing the size of the lens unit 700 in the direction perpendicular to the side surface 738 and the side surface 739.
  • the side surface 738 on which the protrusion 732 is provided is closer to the coupled portion 733 and the coupled portion 734 than the side surface 739 that is the opposite surface of the side surface 738. This contributes to making it difficult to generate a moment that breaks the attitude of the driven body 704, and contributes to easily maintaining the attitude of the driven body 704.
  • the eighth embodiment relates to a lens unit.
  • the difference between the lens unit of the eighth embodiment and the lens unit of the sixth embodiment will be mainly described.
  • the description about 6th Embodiment is used for 8th Embodiment.
  • the description about embodiments other than the sixth embodiment may be incorporated into the eighth embodiment.
  • 21 is a top view of the lens unit of the eighth embodiment.
  • the lens unit 800 of the eighth embodiment includes a support body 803, a driven body 804, two parallel springs 805 (FIG. 21 shows one of the two parallel springs 805). Only a plate-like SMA actuator 807 is shown.
  • the support body 803 includes a support plate 810, a support bar 811, and a support bar 812.
  • the support bar 811 includes a coupled portion 815.
  • the support bar 812 includes a coupled portion 818.
  • the driven body 804 includes a multi-array lens 821 and a lens holder 822.
  • the lens holder 822 includes a rectangular object 831, a protrusion 832, a coupled portion 833, and a coupled portion 834.
  • the quadrangular object 831 has a side surface 837, a side surface 838, a side surface 839, and a side surface 840.
  • Each of the two parallel springs 805 includes a leaf spring 843 and a leaf spring 844.
  • the plate spring 843 includes a flat plate-shaped portion 847, a coupling portion 848, and a coupling portion 849.
  • the leaf spring 844 includes a flat plate portion 852, a coupling portion 853, and a coupling portion 854.
  • the coupling unit 848 is coupled to the coupled unit 815.
  • the coupling portion 849 is coupled to the coupled portion 833.
  • the coupling portion 853 is coupled to the coupled portion 818.
  • the coupling unit 854 is coupled to the coupled unit 834.
  • the coupling portion 849 can move in the driving direction.
  • the coupling portion 844 can move in the driving direction.
  • the driven body 804 is guided in the driving direction by two leaf springs 843 and a leaf spring 844. This makes it easy to maintain the posture of the driven body 804.
  • the leaf spring 843 is installed along the side surface 837
  • the leaf spring 844 is installed along the side surface 840 that is the opposite side of the side surface 837. This makes it easier to maintain the attitude of the driven body 804.
  • the protrusion 832 has an action point where a force is applied.
  • the protrusion 832 is provided on the side surface 839.
  • the plate-like SMA actuator 807 has a force point for applying a force.
  • the force point is the point of action.
  • the shape of the plate-like SMA actuator 807 changes from a flat shape to a curved shape. Due to the shape change, the force point moves from a position relatively close to the support plate 810 to a position relatively far from the support plate 810, and the force point applies a force toward the driving direction to the action point.
  • the driven member 804 is driven in the driving direction by the force applied by the force point to the action point.
  • the leaf spring 843 is an elongated object and extends along the side surface 837.
  • the leaf spring 844 is an elongated shape and extends along the side surface 840.
  • the plate-like SMA actuator 807 has an elongated shape and extends along the side surface 839.
  • the side surface 839 faces a direction different from the side surface 837 and the side surface 840 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 831 and contributes to downsizing the lens unit 800.
  • the support bar 811 faces the side surface 839 when viewed from the driving direction.
  • the support bar 812 faces the side surface 839 when viewed from the driving direction.
  • the support bar 811 and the support bar 812 do not protrude from the range where the driven body 804 exists in the direction perpendicular to the side surface 837 and the side surface 840. This contributes to reducing the size of the lens unit 800 in the direction perpendicular to the side surface 837 and the side surface 840.
  • the side surface 839 on which the protrusion 832 is provided is farther from the coupled portion 833 and the coupled portion 834 than the side surface 838 which is the opposite side of the side surface 839.
  • the plate-like SMA actuator 807 extends along the side surface 839.
  • the support bar 811 and the support bar 812 face the side surface 839 when viewed from the driving direction.
  • the plate-like SMA actuator 807, the support bar 811 and the support bar 812 are concentrated and installed along the side surface 839.
  • a side surface 838 that is opposite to the side surface 839 is opened. This contributes to downsizing the lens unit 800 in the direction perpendicular to the side surface 839.
  • the ninth embodiment relates to a lens unit.
  • the point from which the lens unit of 9th Embodiment differs from the lens unit of 6th Embodiment is mainly demonstrated.
  • description about 6th Embodiment is used for 9th Embodiment.
  • the description about embodiments other than the sixth embodiment may be incorporated into the ninth embodiment.
  • FIG. 22 is a top view of the lens unit of the ninth embodiment.
  • the lens unit 900 of the ninth embodiment includes a support 903, a driven body 904, two parallel springs 905 (FIG. 22 shows one of the two parallel springs 905. Only a plate-like SMA actuator 907 is shown.
  • the support body 903 includes a support plate 910, a support bar 911, and a support bar 912.
  • the support bar 911 includes a coupled portion 915.
  • the support bar 912 includes a coupled portion 918.
  • the driven body 904 includes a multi-array lens 921 and a lens holder 922.
  • the multi-array lens 921 includes a coupled portion 933 and a coupled portion 934.
  • the lens holder 922 includes a quadrangular object 931 and a protrusion 932.
  • the quadrangular object 931 has a side surface 937, a side surface 938, a side surface 939, and a side surface 940.
  • Each of the two parallel springs 905 includes a leaf spring 943 and a leaf spring 944.
  • Each of the plate spring 943 and the plate spring 944 has a zigzag planar shape.
  • the spring length becomes long, and a necessary driving amount can be obtained even if the spring constant is small.
  • the leaf spring 943 includes a flat plate portion 947, a coupling portion 948, and a coupling portion 949.
  • the leaf spring 944 includes a flat plate portion 952, a coupling portion 953, and a coupling portion 954.
  • the coupling unit 948 is coupled to the coupled unit 915.
  • the coupling part 949 is coupled to the coupled part 933.
  • the coupling portion 953 is coupled to the coupled portion 918.
  • the coupling portion 954 is coupled to the coupled portion 934.
  • the coupling portion 949 can move in the driving direction by elastic deformation of the plate spring 943. Due to the elastic deformation of the leaf spring 944, the coupling portion 954 can move in the driving direction.
  • the driven body 904 is guided in the driving direction by two leaf springs 943 and a leaf spring 944. This facilitates maintaining the attitude of the driven body 904.
  • the leaf spring 943 is installed along the side surface 937
  • the leaf spring 944 is installed along the side surface 940, which is the opposite side of the side surface 937. This further facilitates maintaining the attitude of the driven body 904.
  • the protrusion 932 has an action point where a force is applied.
  • the protrusion 932 is provided on the side surface 938.
  • the plate-like SMA actuator 907 has a force point for applying a force.
  • the force point is the point of action.
  • the shape of the plate-like SMA actuator 907 changes from a flat shape to a curved shape. Due to the change in shape, the force point moves from a position relatively close to the support plate 910 to a position relatively distant from the support plate 910, and the force point applies a force in the driving direction to the action point.
  • the driven body 904 is driven in the driving direction by the force applied by the force point to the action point.
  • the leaf spring 943 is an elongated object and extends along the side surface 937.
  • the leaf spring 944 is an elongated shape and extends along the side surface 940.
  • the plate-like SMA actuator 907 has an elongated shape and extends along the side surface 938.
  • the side surface 938 faces a direction different from the side surface 937 and the side surface 940 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 931, and contributes to downsizing the lens unit 900.
  • the support rod 911 and the support rod 912 face the side surface 939 when viewed from the driving direction.
  • the support bar 911 and the support bar 912 do not protrude from the range where the driven body 904 exists in the direction perpendicular to the side surface 937 and the side surface 940. This contributes to reducing the size of the lens unit 900 in the direction perpendicular to the side surface 937 and the side surface 940.
  • the side surface 938 on which the protrusion 932 is provided is closer to the coupled portion 933 and the coupled portion 934 than the side surface 939 that is the opposite side of the side surface 938. This contributes to making it difficult to generate a moment that breaks the attitude of the driven body 904, and contributes to easily maintaining the attitude of the driven body 904.
  • Tenth Embodiment A tenth embodiment relates to a lens unit. Below, the point from which the lens unit of 10th Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 1st Embodiment is used for 10th Embodiment. The description about embodiments other than the first embodiment may be incorporated into the tenth embodiment.
  • FIG 23 is a side view of the lens unit of the tenth embodiment.
  • the lens unit 1000 includes a support 1003, a support 1004, a driven body 1005, a link mechanism 1006, a plate-like SMA actuator 1007, and a multi-array lens 1008.
  • the multi-array lens 1008 may be replaced with a lens that is not a multi-array lens.
  • the support body 1003 includes a support plate 1011, a support bar 1012, and a support bar 1013.
  • the support body 1003 supports the driven body 1005 via the link mechanism 1006 and the plate-like SMA actuator 1007.
  • the support body 1004 supports the multi-array lens 1008. Support 1004 is coupled to support 1003.
  • the driven body 1005 includes a lens 1016 and a lens holder 1017.
  • the lens 1016 may be replaced with a multi-array lens.
  • the lens 106 is a single lens, but the lens 106 may be replaced with a plurality of lenses.
  • the lens holder 1017 includes a rectangular object 1020 and a protrusion 1021.
  • the rectangular object 1020 has a side surface 1024, a side surface 1025, and a side surface 1026.
  • the lens holder 1017 holds the lens 1016.
  • the link mechanism 1006 includes two unit mechanisms 1029.
  • Each of the two unit mechanisms 1029 includes a link member 1032, a support portion 1033, and a support portion 1034.
  • the link member 1032 includes a flat bar portion 1037, a supported portion 1038, and a supported portion 1039.
  • the support portion 1033 is coupled to the support rod 1012 and supports the supported portion 1038 so as to be rotatable around the first rotation axis.
  • the support portion 1034 is coupled to the side surface 1024 and supports the supported portion 1039 so as to be rotatable around the second rotation axis.
  • the protrusion 1021 has an action point 1042 where a force is applied.
  • the protrusion 1021 is provided on the side surface 1025.
  • the plate-like SMA actuator 1007 has a force point 1043 for applying a force. The force point 1043 hits the action point 1042.
  • the shape of the plate-like SMA actuator 1007 changes from a flat shape to a curved shape. Due to the change in shape, the force point 1043 moves from a position relatively close to the support plate 1011 to a position relatively far from the support plate 1011, and the force point 1043 applies a force in the driving direction 1046 to the action point 1042.
  • the driven body 1005 is driven in the driving direction 1046 by the force applied by the force point 1043 to the action point 1042. By driving the driven body 1005, the focal length and the focal position of the lens unit 1000 change.
  • the link member 1032 is an elongated object, and extends along the side surface 1024.
  • the plate-like SMA actuator 1007 is an elongated object, and extends along the side surface 1025.
  • the side surface 1025 faces a direction different from the side surface 1024 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 1020, and contributes to downsizing the lens unit 1000.
  • the eleventh embodiment relates to a lens unit.
  • the point from which the lens unit of 11th Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated.
  • description about 1st Embodiment is used for 11th Embodiment.
  • the description about embodiments other than the first embodiment may be incorporated into the eleventh embodiment.
  • 24 is a top view of the lens unit of the eleventh embodiment.
  • the lens unit 1100 of the eleventh embodiment includes a support 1103, a driven body 1104, a link mechanism 1105, and a plate-like SMA actuator 1107.
  • the support 1103 includes a support plate 1110, a support bar 1111, and a support bar 1113.
  • the driven body 1104 includes a multi-array lens 1115 and a lens holder 1116.
  • the lens holder 1116 includes a rectangular object 1124 and a protrusion 1125.
  • the rectangular object 1124 has a side surface 1128, a side surface 1129, a side surface 1130, and a side surface 1131.
  • the link mechanism 1105 includes two unit mechanisms 1134 (only one of the two unit mechanisms 1134 is shown in FIG. 24).
  • Each of the two unit mechanisms 1134 includes a link member 1137, a support portion 1138, and a support portion 1139.
  • the link member 1137 includes a flat bar portion 1142, a supported portion 1143, and a supported portion 1144.
  • the support portion 1138 is coupled to the support rod 1111 and supports the supported portion 1143 so as to be rotatable around the first rotation axis.
  • the support portion 1139 is coupled to the side surface 1128 and supports the supported portion 1144 to be rotatable around the second rotation axis.
  • the driven body 1104 is guided in the driving direction by one link mechanism 1105. This contributes to downsizing of the lens unit 1100.
  • the protrusion 1125 has an action point where a force is applied.
  • the plate-like SMA actuator 1107 has a force point for applying a force.
  • the shape of the plate-like SMA actuator 1107 changes from a flat shape to a curved shape. Due to the change in shape, the force point moves from a position relatively close to the support plate 1110 to a position relatively distant from the support plate 1110, and the force point applies a force in the driving direction to the action point.
  • the driven body 1104 is driven in the driving direction by the force applied by the force point to the action point.
  • the link member 1137 is an elongated object, and extends along the side surface 1128.
  • the plate-like SMA actuator 1107 is an elongated shape and extends along the side surface 1131.
  • the side surface 1131 is a facing surface of the side surface 1128 and faces a direction different from the side surface 1128 by 180 °. This contributes to effective use of the space along the side surface of the rectangular object 1124 and contributes to downsizing the lens unit 1100.
  • the support bar 1111 faces the side surface 1130 when viewed from the driving direction.
  • the support bar 1111 does not protrude from the range where the driven body 1104 exists in the direction perpendicular to the side surface 1128 and the side surface 1131. This contributes to reducing the size of the lens unit 1100 in the direction perpendicular to the side surface 1128 and the side surface 1131. This advantage is maintained even when the support bar 1111 faces the side surface 1129 when viewed from the driving direction.
  • the support rod 1113 is provided along the side separating the side surface 1130 and the side surface 1131.
  • the plate-like SMA actuator 1107 has a connection point that is connected to the support rod 1113.
  • the side surface 1129 and the side surface 1130 face a direction different from the side surface 1128 by 90 °.
  • the action point is provided on the side surface 1131.
  • the side surface 1129 is closer to the support portion 1139 than the side surface 1130 that faces the side surface 1129. Further, the side surface 1129 is closer to the action point than the side surface 1130. That is, the support portion 1139 and the action point are closer to the side surface 1129. This contributes to making it difficult to generate a moment that breaks the attitude of the driven body 1104, and contributes to easily maintaining the attitude of the driven body 1104.
  • the support bar 1111 faces the side surface 1130 when viewed from the driving direction.
  • the plate-like SMA actuator 1107 extends along the side surface 1131, but protrudes from the range corresponding to the side surface 1131 beyond the side surface 1130.
  • the protruding portions of the support bar 1111 and the plate-like SMA actuator 1107 are concentrated and installed near the space along the side surface 1130.
  • the side surface 1129 that is the opposite surface of the side surface 1130 is opened. This contributes to reducing the size of the lens unit 1100 in the direction perpendicular to the side surface 1130.
  • Twelfth Embodiment relates to a lens unit.
  • the point from which the lens unit of 12th Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated.
  • description about 1st Embodiment is used for 12th Embodiment.
  • the description about embodiments other than the first embodiment may be incorporated into the twelfth embodiment.
  • 25 is a top view of the lens unit of the twelfth embodiment.
  • the lens unit 1200 of the twelfth embodiment includes a support 1203, a driven body 1204, a link mechanism 1205, and a plate-like SMA actuator 1207.
  • the support 1203 includes a support plate 1210, a support bar 1211, and a support bar 1213.
  • the driven body 1204 includes a multi-array lens 1215 and a lens holder 1216.
  • the lens holder 1216 includes a rectangular object 1224 and a protrusion 1225.
  • the quadrangular object 1224 has a side surface 1228, a side surface 1229, a side surface 1230, and a side surface 1231.
  • the link mechanism 1205 includes two unit mechanisms 1234 (FIG. 25 shows only one of the two unit mechanisms 1234).
  • Each of the two unit mechanisms 1234 includes a link member 1237, a support portion 1238, and a support portion 1239.
  • the link member 1237 includes a flat bar portion 1242, a supported portion 1243, and a supported portion 1244.
  • the support portion 1238 is coupled to the support rod 1211 and supports the supported portion 1243 so as to be rotatable around the first rotation axis.
  • the support portion 1239 is coupled to the side surface 1228 and supports the supported portion 1244 so as to be rotatable around the second rotation axis.
  • the driven body 1204 is guided in the driving direction by one link mechanism 1205. This contributes to downsizing of the lens unit 1200.
  • the protrusion 1225 has an action point where a force is applied.
  • the plate-like SMA actuator 1207 has a force point for applying a force.
  • the shape of the plate-like SMA actuator 1207 changes from a flat shape to a curved shape. Due to the change in shape, the force point moves from a position relatively close to the support plate 1210 to a position relatively distant from the support plate 1210, and the force point applies a force in the driving direction to the action point.
  • the driven member 1204 is driven in the driving direction by the force applied by the force point to the action point.
  • the link member 1237 is an elongated object and extends along the side surface 1228.
  • the plate-like SMA actuator 1207 is an elongated object and extends along the side surface 1231.
  • the side surface 1231 is a facing surface of the side surface 1228 and faces a direction different from the side surface 1228 by 180 °. This contributes to effective use of the space along the side surface of the rectangular object 1224, and contributes to downsizing the lens unit 1200.
  • the support rod 1211 faces the side surface 1230 when viewed from the driving direction.
  • the support rod 1211 does not protrude from the range where the driven body 1204 exists in the direction perpendicular to the side surface 1228 and the side surface 1231. This contributes to downsizing the lens unit 1200 in the direction perpendicular to the side surface 1228 and the side surface 1231.
  • the support rod 1213 is provided along the side separating the side surface 1229 and the side surface 1231.
  • the plate-like SMA actuator 1207 has a coupling point coupled to the support rod 1213.
  • the side surface 1229 and the side surface 1230 face a direction different from the side surface 1228 by 90 °.
  • the action point is provided on the side surface 1231.
  • the side surface 1229 is closer to the support portion 1239 than the side surface 1230 that faces the side surface 1229. Further, the side surface 1229 is farther from the action point than the side surface 1230. That is, while the support portion 1239 is closer to the side surface 1229, the action point is closer to the side surface 1230.
  • the support rod 1211 faces the side surface 1230 when viewed from the driving direction.
  • the plate-like SMA actuator 1207 extends along the side surface 1231.
  • a thirteenth embodiment relates to a lens unit.
  • the point from which the lens unit of 13th Embodiment differs from the lens unit of 6th Embodiment is mainly demonstrated.
  • description about 6th Embodiment is used for 13th Embodiment.
  • Descriptions about embodiments other than the sixth embodiment may be incorporated into the thirteenth embodiment.
  • FIG. 26 is a top view of the lens unit of the thirteenth embodiment.
  • the lens unit 1300 of the thirteenth embodiment includes a support body 1303, a driven body 1304, two parallel springs 1305 (in FIG. 26, one of the two parallel springs 1305 is shown. Only a plate-like SMA actuator 1307 is shown.
  • the support body 1303 includes a support plate 1310, a support bar 1311, and a support bar 1313.
  • the support bar 1311 includes a coupled portion 1315.
  • the support bar 1313 includes a coupled portion 1319.
  • the driven body 1304 includes a multi-array lens 1321 and a lens holder 1322.
  • the lens holder 1322 includes a rectangular object 1331, a protrusion 1332, and a coupled portion 1333.
  • the rectangular object 1331 has a side surface 1337, a side surface 1338, a side surface 1339, and a side surface 1340.
  • Each of the two parallel springs 1305 includes a leaf spring 1343.
  • the leaf spring 1343 includes a flat plate-like portion 1347, a coupling portion 1348, and a coupling portion 1349.
  • the coupling unit 1348 is coupled to the coupled unit 1315.
  • the coupling part 1349 is coupled to the coupled part 133.
  • the coupling portion 1349 can move in the driving direction.
  • the driven body 1304 is guided in the driving direction by a leaf spring 1343. This facilitates maintaining the posture of the driven body 1304.
  • the protrusion 1332 has an action point where force is applied.
  • the protrusion 1332 is provided on the side surface 1340.
  • the plate-like SMA actuator 1307 has a force point for applying a force.
  • the force point is the point of action.
  • the shape of the plate-like SMA actuator 1307 changes from a flat shape to a curved shape. Due to the change in shape, the power point moves from a position relatively close to the support plate 1310 to a position relatively far from the support plate 1310, and the force point applies a force toward the driving point in the driving direction.
  • the driven body 1304 is driven in the driving direction by the force applied by the force point to the action point.
  • the leaf spring 1343 is an elongated object and extends along the side surface 1337.
  • the plate-like SMA actuator 1307 is an elongated shape and extends along the side surface 1340.
  • the side surface 1340 is the opposite surface of the side surface 1337 and faces a direction different from the side surface 1337 by 180 °. This contributes to effective use of the space along the side surface of the rectangular object 1331 and contributes to downsizing the lens unit 1300.
  • the support bar 1311 faces the side surface 1339 when viewed from the driving direction.
  • the support bar 1311 does not protrude from the range where the driven body 1304 exists in the direction perpendicular to the side surface 1337 and the side surface 1340. This contributes to reducing the size of the lens unit 1300 in the direction perpendicular to the side surface 1337 and the side surface 1340. This advantage is maintained even when the support bar 1311 faces the side surface 1338 when viewed from the driving direction.
  • the support bar 1313 is provided along the side separating the side surface 1339 and the side surface 1340.
  • the plate-like SMA actuator 1307 has a coupling point coupled to the support bar 1313.
  • the side surface 1338 and the side surface 1339 are oriented in a direction different from the side surface 1337 by 90 °.
  • the action point is provided on the side surface 1340.
  • the side surface 1338 is closer to the coupled portion 1333 than the side surface 1339 that is the opposite surface of the side surface 1338.
  • the side surface 1338 is closer to the point of action than the side surface 1339.
  • the coupled portion 1333 and the action point are closer to the side surface 1338. This contributes to making it difficult to generate a moment that breaks the posture of the driven body 1304 and to help maintain the posture of the driven body 1304.
  • the support bar 1311 faces the side surface 1339 when viewed from the driving direction.
  • the plate-like SMA actuator 1307 extends along the side surface 1340, but protrudes from the range corresponding to the side surface 1340 beyond the side surface 1339.
  • the protruding portions of the support bar 1311 and the plate-like SMA actuator 1307 are concentrated and installed near the space along the side surface 1339.
  • a side surface 1338 that is opposite to the side surface 1339 is opened. This contributes to reducing the size of the lens unit 1300 in the direction perpendicular to the side surface 1339.
  • the support bar 1311 may face the side surface 1337 when viewed from the driving direction. In this case, the support bar 1311 does not protrude from the range where the driven body 1304 exists in the direction perpendicular to the side surface 1338 and the side surface 1339. This contributes to reducing the size of the lens unit 1300 in the direction perpendicular to the side surface 1338 and the side surface 1339.
  • a fourteenth embodiment relates to a lens unit.
  • the point from which the lens unit of 14th Embodiment differs from the lens unit of 6th Embodiment is mainly demonstrated.
  • description about 6th Embodiment is used for 14th Embodiment.
  • Descriptions about embodiments other than the sixth embodiment may be incorporated into the fourteenth embodiment.
  • 27 is a top view of the lens unit of the fourteenth embodiment.
  • the lens unit 1400 of the fourteenth embodiment includes a support 1403, a driven body 1404, two parallel springs 1405 (in FIG. 27, one of the two parallel springs 1405). Only a plate-like SMA actuator 1407 is provided.
  • the support body 1403 includes a support plate 1410, a support bar 1411, and a support bar 1413.
  • the support bar 1411 includes a coupled portion 1415.
  • the support bar 1413 includes a coupled portion 1419.
  • the driven body 1404 includes a multi-array lens 1421 and a lens holder 1422.
  • the lens holder 1422 includes a rectangular object 1431, a protrusion 1432, and a coupled portion 1433.
  • the quadrangular object 1431 has a side surface 1437, a side surface 1438, a side surface 1439, and a side surface 1440.
  • Each of the two parallel springs 1405 includes a leaf spring 1443.
  • the plate spring 1443 includes a flat plate-like portion 1447, a coupling portion 1448, and a coupling portion 1449.
  • the coupling unit 1448 is coupled to the coupled unit 1415.
  • the coupling portion 1449 is coupled to the coupled portion 1433.
  • the coupling portion 1449 can move in the driving direction.
  • the driven body 1404 is guided in the driving direction by a leaf spring 1443. This facilitates maintaining the attitude of the driven body 1404.
  • the protrusion 1432 has an action point where force is applied.
  • the protrusion 1432 is provided on the side surface 1440.
  • the plate-like SMA actuator 1407 has a force point for applying a force.
  • the force point is the point of action.
  • the shape of the plate-like SMA actuator 1407 changes from a flat shape to a curved shape. Due to the change in shape, the force point moves from a position relatively close to the support plate 1410 to a position relatively distant from the support plate 1410, and the force point applies a force in the driving direction to the action point.
  • the driven member 1404 is driven in the driving direction by the force applied by the force point to the action point.
  • the leaf spring 1443 is an elongated shape and extends along the side surface 1437.
  • the plate-like SMA actuator 1407 has an elongated shape and extends along the side surface 1440.
  • the side surface 1440 is a facing surface of the side surface 1437 and faces a direction different from the side surface 1437 by 180 °. This contributes to effective utilization of the space along the side surface of the rectangular object 1431 and contributes to downsizing the lens unit 1400.
  • the support bar 1411 and the support bar 1413 are opposed to the side surface 1439 when viewed from the driving direction.
  • the support bar 1411 and the support bar 1413 do not protrude from the range where the driven body 1404 exists in the direction perpendicular to the side surface 1437 and the side surface 1440. This contributes to reducing the size of the lens unit 1400 in the direction perpendicular to the side surface 1437 and the side surface 1440. This advantage is maintained even when both or one of the support bar 1411 and the support bar 1413 faces the side surface 1438 when viewed in the driving direction.
  • the side surface 1438 and the side surface 1439 are oriented in a direction different from the side surface 1437 by 90 °.
  • the action point is provided on the side surface 1440.
  • the side surface 1439 is farther from the coupled portion 1433 than the side surface 1438 which is the opposite surface of the side surface 1439.
  • the side surface 1439 is closer to the action point than the side surface 1438. That is, the point of action is closer to the side surface 1439 while the coupled portion 1433 is closer to the side surface 1438.
  • the support rod 1411 faces the side surface 1439 when viewed from the driving direction.
  • the plate-like SMA actuator 1407 extends along the side surface 1440 but extends beyond the side surface 1439 and corresponds to the side surface 1440.
  • the protruding portions of the support bar 1411 and the plate-like SMA actuator 1407 are concentrated in the vicinity of the space along the side surface 1439.
  • a side surface 1438 that is opposite to the side surface 1439 is opened. This contributes to reducing the size of the lens unit 1400 in the direction perpendicular to the side surface 1439.
  • a fifteenth embodiment relates to an imaging apparatus.
  • the imaging apparatus 1500 includes the lens unit 100 and the imaging element 1503 according to the first embodiment.
  • the lens unit 100 of the first embodiment may be replaced with a lens unit of an embodiment other than the first embodiment.
  • the image sensor 1503 captures an image formed by the lens unit 100.
  • the imaging data output from the imaging element 1503 is used for generating a stereo image, a three-dimensional image, and the like.
  • the number of image sensors included in the imaging apparatus 1500 may be increased.
  • an image formed by 16 lenses 118 is captured by one imaging element 1503. Images formed by the 16 lenses 118 may be captured by two or more image sensors. Each of the two or more imaging elements may capture one image, or may capture two or more images.

Abstract

This invention makes it possible to reduce the size of a drive unit when a driven body comprises a tetragonal object. Said driven body comprises a tetragonal object that has a tetragonal shape when viewed in the drive direction. A force-applying point on an actuator applies a force to a force-application point on the driven body so as to drive said driven body in the aforementioned drive direction. A link member or a spring extends along a first side of the tetragonal object, and the actuator extends along a second side of the tetragonal object.

Description

駆動ユニット及び撮像装置Drive unit and imaging device
　本発明は、駆動ユニット及び撮像装置に関する。 The present invention relates to a drive unit and an imaging apparatus.
　レンズユニット等の駆動ユニットにおいて焦点距離の調整、焦点の調整等のためにレンズを平行移動させる場合がある。レンズを平行移動させるためには、平行ガイド及びアクチュエーターが必要である。平行ガイドは、レンズの姿勢を維持したままレンズを駆動方向に案内する。アクチュエーターは、レンズを駆動方向に駆動する力をレンズに加える。平行ガイドには、板バネを備える平行ガイド、ガイド軸を備える平行ガイド、リンク部材を備える平行ガイド等がある。アクチュエーターには、形状記憶合金アクチュエーター、バイメタルアクチュエーター、ボイスコイルモーターアクチュエーター、圧電アクチュエーター等がある。 ¡The lens may be moved in parallel for adjusting the focal length, adjusting the focal point, etc. in a driving unit such as a lens unit. In order to translate the lens, a parallel guide and an actuator are required. The parallel guide guides the lens in the driving direction while maintaining the posture of the lens. The actuator applies a force that drives the lens in the driving direction to the lens. Examples of the parallel guide include a parallel guide including a leaf spring, a parallel guide including a guide shaft, and a parallel guide including a link member. Examples of the actuator include a shape memory alloy actuator, a bimetal actuator, a voice coil motor actuator, and a piezoelectric actuator.
　レンズの平面形状は円形状であることが多く、レンズユニットの平面形状は四角形状であることが多い。このため、平行ガイド及びアクチュエーターの両方又は片方は、比較的大きな空き空間が存在するレンズユニットの四隅に設置される場合が多い。例えば、特許文献１に記載された発明においては、アクチュエーターがレンズユニットの四隅に設置される。 The planar shape of the lens is often circular, and the planar shape of the lens unit is often rectangular. For this reason, both or one of the parallel guide and the actuator are often installed at the four corners of the lens unit in which a relatively large empty space exists. For example, in the invention described in Patent Document 1, actuators are installed at the four corners of the lens unit.
特開２０１１－１６４４１２号公報Japanese Patent Application Laid-Open No. 2011-164412
　被駆動体がマルチアレイレンズ等の四角形状物である場合に、従来と同様にレンズユニットの四隅に平行ガイド及びアクチュエーターの両方又は片方が設置されたときは、空間を有効に活用できず、レンズユニットが大型化する。 When the driven body is a quadrangular object such as a multi-array lens, if the parallel guide and / or actuator are installed at the four corners of the lens unit as in the conventional case, the space cannot be used effectively, and the lens The unit becomes larger.
　本発明は、この問題を解決するためになされる。本発明が解決しようとする課題は、被駆動体が四角形状物を備える場合において駆動ユニットを小型化することである。 The present invention is made to solve this problem. The problem to be solved by the present invention is to reduce the size of the drive unit when the driven body includes a rectangular object.
　本発明の第１の局面においては、駆動ユニットが支持体、被駆動体、リンク機構及びアクチュエーターを備える。アクチュエーターの力点が被駆動体の作用点に加える力により、被駆動体が駆動方向に駆動される。被駆動体は、駆動方向から見て四角形状である四角形状物を備える。リンク機構は、２個以上の単位機構を備える。２個以上の単位機構の各々は、リンク部材、第１の支持部及び第２の支持部を備える。第１の支持部は、支持体に結合され、リンク部材の第１の被支持部を第１の回転軸の周りに回転可能に支持する。第２の支持部は、四角形状物の第１の側面に結合され、リンク部材の第２の被支持部を第２の回転軸の周りに回転可能に支持する。第１の回転軸は駆動方向と垂直をなす。第２の回転軸は、第１の回転軸と平行をなす。リンク部材は、四角形状物の第１の側面に沿って延在する。アクチュエーターは、四角形状物の第２の側面に沿って延在する。 In the first aspect of the present invention, the drive unit includes a support, a driven body, a link mechanism, and an actuator. The driven body is driven in the driving direction by the force applied by the actuator's power point to the operating point of the driven body. The driven body includes a quadrangular object that is quadrangular when viewed from the driving direction. The link mechanism includes two or more unit mechanisms. Each of the two or more unit mechanisms includes a link member, a first support portion, and a second support portion. The first support portion is coupled to the support and supports the first supported portion of the link member so as to be rotatable about the first rotation axis. The second support portion is coupled to the first side surface of the quadrangular object, and supports the second supported portion of the link member so as to be rotatable around the second rotation axis. The first rotation axis is perpendicular to the driving direction. The second rotation axis is parallel to the first rotation axis. The link member extends along the first side surface of the quadrangular object. The actuator extends along the second side surface of the rectangular object.
　本発明の第２の局面においては、駆動ユニットが支持体、被駆動体、平行バネ及びアクチュエーターを備える。アクチュエーターの力点が被駆動体の作用点に加える力により、被駆動体が駆動方向に駆動される。被駆動体は、駆動方向から見て四角形状である四角形状物を備える。平行バネは、バネを備える。バネの第１の結合部は、支持体の被結合部に結合される。バネの第２の結合部は、被駆動体の被結合部に結合され、平行バネの弾性変形により駆動方向に移動可能である。バネは、四角形状物の第１の側面に沿って延在する。アクチュエーターは、四角形状物の第２の側面に沿って延在する。 In the second aspect of the present invention, the drive unit includes a support, a driven body, a parallel spring, and an actuator. The driven body is driven in the driving direction by the force applied by the actuator's power point to the operating point of the driven body. The driven body includes a quadrangular object that is quadrangular when viewed from the driving direction. The parallel spring includes a spring. The first coupling portion of the spring is coupled to the coupled portion of the support. The second coupling portion of the spring is coupled to the coupled portion of the driven body and is movable in the driving direction by elastic deformation of the parallel spring. The spring extends along the first side surface of the rectangular object. The actuator extends along the second side surface of the rectangular object.
　本発明の第１の局面によれば、四角形状物の側面に沿う空間を有効活用してリンク部材及びアクチュエーターが配置され、駆動ユニットを小型化可能である。 According to the first aspect of the present invention, the link member and the actuator are arranged by effectively utilizing the space along the side surface of the rectangular object, and the drive unit can be reduced in size.
　本発明の第２の局面によれば、四角形状物の側面に沿う空間を利用して平行バネ及びアクチュエーターが配置され、駆動ユニットを小型可能である。 According to the second aspect of the present invention, the parallel spring and the actuator are arranged using the space along the side surface of the rectangular object, and the drive unit can be downsized.
　これらの及びこれら以外の本発明の目的、特徴、局面及び利点は、添付図面とともに考慮されたときに下記の本発明の詳細な説明によってより明白となる。 These and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when considered in conjunction with the accompanying drawings.
第１実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 1st Embodiment. 第１実施形態のレンズユニットの側面図である。It is a side view of the lens unit of a 1st embodiment. 第１実施形態のレンズユニットの側面図である。It is a side view of the lens unit of a 1st embodiment. 第１実施形態のレンズユニットの側面図である。It is a side view of the lens unit of a 1st embodiment. 第１実施形態のレンズユニットの側面図である。It is a side view of the lens unit of a 1st embodiment. 第２実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 2nd Embodiment. 第２実施形態のレンズユニットの側面図である。It is a side view of the lens unit of 2nd Embodiment. 第２実施形態のレンズユニットの側面図である。It is a side view of the lens unit of 2nd Embodiment. 第３実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 3rd Embodiment. 第３実施形態のレンズユニットの側面図である。It is a side view of the lens unit of 3rd Embodiment. 第３実施形態のレンズユニットの側面図である。It is a side view of the lens unit of 3rd Embodiment. 第４実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 4th Embodiment. 第４実施形態のレンズユニットの側面図である。It is a side view of the lens unit of 4th Embodiment. 第４実施形態のレンズユニットの側面図である。It is a side view of the lens unit of 4th Embodiment. 第５実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 5th Embodiment. 第５実施形態のレンズユニットの側面図である。It is a side view of the lens unit of 5th Embodiment. 第５実施形態のレンズユニットの側面図である。It is a side view of the lens unit of 5th Embodiment. 第６実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 6th Embodiment. 第６実施形態のレンズユニットの側面図である。It is a side view of the lens unit of 6th Embodiment. 第７実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 7th Embodiment. 第８実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 8th Embodiment. 第９実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 9th Embodiment. 第１０実施形態のレンズユニットの側面図である。It is a side view of the lens unit of 10th Embodiment. 第１１実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 11th Embodiment. 第１２実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 12th Embodiment. 第１３実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 13th Embodiment. 第１４実施形態のレンズユニットの上面図である。It is a top view of the lens unit of 14th Embodiment. 第１５実施形態の撮像装置の側面図である。It is a side view of the imaging device of 15th Embodiment.
　第１実施形態
　第１実施形態は、レンズユニット（駆動ユニット）に関する。 First Embodiment The first embodiment relates to a lens unit (drive unit).
　図１から図３までの模式図は、第１実施形態のレンズユニットを示す。図１は、上面図である。図２及び図３は、側面図である。 1 to 3 schematically show the lens unit according to the first embodiment. FIG. 1 is a top view. 2 and 3 are side views.
　図１から図３までに示されるように、第１実施形態のレンズユニット１００は、支持体１０３、被駆動体１０４、リンク機構１０５、リンク機構１０６及び板状形状記憶合金（ＳＭＡ）アクチュエーター１０７を備える。レンズユニット１００がこれらの構成物以外の構成物を備えてもよい。レンズユニット１００が備えるリンク機構の数が増減されてもよい。 As shown in FIGS. 1 to 3, the lens unit 100 of the first embodiment includes a support 103, a driven body 104, a link mechanism 105, a link mechanism 106, and a plate-shaped shape memory alloy (SMA) actuator 107. Prepare. The lens unit 100 may include components other than these components. The number of link mechanisms provided in the lens unit 100 may be increased or decreased.
　支持体１０３は、支持板１１０、支持棒１１１、支持棒１１２及び支持棒１１３を備える。支持板１１０が板でない構造物に置き換えられてもよい。支持棒１１１、支持棒１１２及び支持棒１１３の全部又は一部が棒でない構造物に置き換えられてもよい。 The support body 103 includes a support plate 110, a support bar 111, a support bar 112, and a support bar 113. The support plate 110 may be replaced with a structure that is not a plate. All or a part of the support bar 111, the support bar 112, and the support bar 113 may be replaced with a structure that is not a bar.
　支持体１０３は、リンク機構１０５、リンク機構１０６及び板状ＳＭＡアクチュエーター１０７を介して被駆動体１０４を支持する。 The support body 103 supports the driven body 104 via the link mechanism 105, the link mechanism 106, and the plate-like SMA actuator 107.
　被駆動体１０４は、マルチアレイレンズ１１５及びレンズホルダー１１６を備える。被駆動体１０４がこれらの構成物以外の構成物を備えてもよい。被駆動体１０４がマルチアレイレンズ１１５に代えて又はマルチアレイレンズ１１５に加えてマルチアレイレンズでないレンズを備えてもよい。レンズホルダー１１６が省略されてもよい。 The driven body 104 includes a multi-array lens 115 and a lens holder 116. The driven body 104 may include components other than these components. The driven body 104 may include a lens that is not a multi-array lens instead of or in addition to the multi-array lens 115. The lens holder 116 may be omitted.
　マルチアレイレンズ１１５は、１６個のレンズ１１８を備える。１６個のレンズ１１８は、駆動方向１２１と垂直をなす方向に行列配列される。行列配列の行数は４である。行列配列の列数は４である。行列配列の行数及び列数の両方又は片方が増減されてもよい。一般的に言えば、マルチアレイレンズ１１５は、ｍ×ｎ個のレンズを備える。ｍ×ｎ個のレンズは、駆動方向１２１と垂直をなす方向に行列配列される。行列配列の行数はｍである。行列配列の列数はｎである。ｍ及びｎは、自然数である。ｍ×ｎは、２以上の自然数である。 The multi-array lens 115 includes 16 lenses 118. The 16 lenses 118 are arranged in a matrix in a direction perpendicular to the drive direction 121. The number of rows in the matrix array is four. The number of columns in the matrix array is 4. Both or one of the number of rows and the number of columns of the matrix array may be increased or decreased. Generally speaking, the multi-array lens 115 includes m × n lenses. The m × n lenses are arranged in a matrix in a direction perpendicular to the driving direction 121. The number of rows in the matrix array is m. The number of columns in the matrix array is n. m and n are natural numbers. m × n is a natural number of 2 or more.
　レンズホルダー１１６は、四角形状物１２４及び突起１２５を備える。四角形状物１２４は、駆動方向１２１から見て四角形状であり、側面１２８、側面１２９、側面１３０及び側面１３１を有する。側面１２８、側面１２９、側面１３０及び側面１３１は、駆動方向１２１と垂直をなす方向を向く。側面１２９は、側面１２８と９０°異なる方向を向く。側面１３０は、側面１２９の対面である。側面１３１は、側面１２８の対面である。側面１２８、側面１２９、側面１３０及び側面１３１は、レンズホルダー１１６に属する。側面１２８、側面１２９、側面１３０及び側面１３１がマルチアレイレンズ１１５に属してもよい。レンズホルダー１１６は、マルチアレイレンズ１１５を保持する。物が駆動方向１２１から見て完全な四角形である場合だけでなく実質的に四角形である場合も物が四角形状物であるとみなされる。例えば、物の角部が面取りされている場合、物の側面の一部が緩やかな曲面である場合等も、物が四角形状物であるとみなされる。 The lens holder 116 includes a rectangular object 124 and a protrusion 125. The quadrangular object 124 has a quadrangular shape when viewed from the driving direction 121 and includes a side surface 128, a side surface 129, a side surface 130, and a side surface 131. The side surface 128, the side surface 129, the side surface 130, and the side surface 131 are oriented in a direction perpendicular to the driving direction 121. The side surface 129 faces a direction different from the side surface 128 by 90 °. The side surface 130 is a facing surface of the side surface 129. Side 131 is the opposite of side 128. The side surface 128, the side surface 129, the side surface 130, and the side surface 131 belong to the lens holder 116. The side surface 128, the side surface 129, the side surface 130, and the side surface 131 may belong to the multi-array lens 115. The lens holder 116 holds the multi-array lens 115. An object is regarded as a quadrangular object not only when it is a perfect rectangle when viewed from the driving direction 121 but also when it is substantially a rectangle. For example, when a corner portion of an object is chamfered or when a part of a side surface of the object is a gently curved surface, the object is regarded as a quadrangular object.
　リンク機構１０５は、２個の単位機構１３４を備える。リンク機構１０６は、２個の単位機構１３４を備える。リンク機構１０５が備える単位機構の数が増やされてもよい。リンク機構１０６が備える単位機構の数が増やされてもよい。 The link mechanism 105 includes two unit mechanisms 134. The link mechanism 106 includes two unit mechanisms 134. The number of unit mechanisms provided in the link mechanism 105 may be increased. The number of unit mechanisms provided in the link mechanism 106 may be increased.
　リンク機構１０５に属する２個の単位機構１３４及びリンク機構１０６に属する２個の単位機構１３４の各々は、リンク部材１３７、支持部１３８及び支持部１３９を備える。リンク機構１０５に属する２個の単位機構１３４及びリンク機構１０６に属する２個の単位機構１３４の各々がこれらの構成物以外の構成物を備えてもよい。リンク部材１３７は、平棒状物であり、平棒状部１４２、被支持部１４３及び被支持部１４４を備える。被支持部１４３及び被支持部１４４は、平棒状部１４２の両端にある。リンク部材１３７が平棒状物でない棒状物に置き換えられてもよい。 Each of the two unit mechanisms 134 belonging to the link mechanism 105 and the two unit mechanisms 134 belonging to the link mechanism 106 includes a link member 137, a support portion 138, and a support portion 139. Each of the two unit mechanisms 134 belonging to the link mechanism 105 and the two unit mechanisms 134 belonging to the link mechanism 106 may include components other than these components. The link member 137 is a flat bar-like object, and includes a flat bar-shaped part 142, a supported part 143, and a supported part 144. The supported portion 143 and the supported portion 144 are at both ends of the flat rod-shaped portion 142. The link member 137 may be replaced with a rod-shaped object that is not a flat bar-shaped object.
　リンク機構１０５に属する支持部１３８は、支持棒１１１に結合され、リンク機構１０５に属する被支持部１４３を第１の回転軸の周りに回転可能に支持する。リンク機構１０５に属する支持部１３９は、側面１２８に結合され、リンク機構１０５に属する被支持部１４４を第２の回転軸の周りに回転可能に支持する。リンク機構１０５に属する２個のリンク部材１３７は、互いに平行をなす。リンク機構１０５に属する２個の単位機構１３４は、駆動方向１２１に離して配置される。 The support portion 138 belonging to the link mechanism 105 is coupled to the support rod 111 and supports the supported portion 143 belonging to the link mechanism 105 so as to be rotatable around the first rotation axis. The support part 139 belonging to the link mechanism 105 is coupled to the side surface 128 and supports the supported part 144 belonging to the link mechanism 105 so as to be rotatable around the second rotation axis. The two link members 137 belonging to the link mechanism 105 are parallel to each other. The two unit mechanisms 134 belonging to the link mechanism 105 are arranged apart from each other in the driving direction 121.
　リンク機構１０６に属する支持部１３８は、支持棒１１２に結合され、リンク機構１０６に属する被支持部１４３を第３の回転軸の周りに回転可能に支持する。リンク機構１０６に属する支持部１３９は、側面１３１に結合され、リンク機構１０６に属する被支持部１４４を第４の回転軸の周りに回転可能に支持する。リンク機構１０６に属する２個のリンク部材１３７は、互いに平行をなす。リンク機構１０６に属する２個の単位機構１３４は、駆動方向１２１に離して配置される。 The support portion 138 belonging to the link mechanism 106 is coupled to the support rod 112 and supports the supported portion 143 belonging to the link mechanism 106 so as to be rotatable around the third rotation axis. The support portion 139 belonging to the link mechanism 106 is coupled to the side surface 131 and supports the supported portion 144 belonging to the link mechanism 106 so as to be rotatable around the fourth rotation axis. The two link members 137 belonging to the link mechanism 106 are parallel to each other. The two unit mechanisms 134 belonging to the link mechanism 106 are arranged apart from each other in the driving direction 121.
　リンク機構１０５及びリンク機構１０６により、被駆動体１０４が駆動される場合に被駆動体１０４の姿勢が維持され、被駆動体１０４が駆動方向１２１に平行移動する。リンク機構１０５及びリンク機構１０６は、平行ガイドとして機能する。 When the driven body 104 is driven by the link mechanism 105 and the link mechanism 106, the attitude of the driven body 104 is maintained, and the driven body 104 is translated in the driving direction 121. The link mechanism 105 and the link mechanism 106 function as a parallel guide.
　被駆動体１０４は、２個のリンク機構１０５及びリンク機構１０６により駆動方向１２１へ案内される。このことは、被駆動体１０４の姿勢を維持することを容易にする。リンク機構１０５は側面１２８に沿って設置され、リンク機構１０６は側面１２８の対面である側面１３１に沿って設置される。このことは、被駆動体１０４の姿勢を維持することをさらに容易にする。 The driven body 104 is guided in the driving direction 121 by the two link mechanisms 105 and 106. This facilitates maintaining the posture of the driven body 104. The link mechanism 105 is installed along the side surface 128, and the link mechanism 106 is installed along the side surface 131 that faces the side surface 128. This makes it easier to maintain the posture of the driven body 104.
　第１の回転軸、第２の回転軸、第３の回転軸及び第４の回転軸は、駆動方向１２１と垂直をなし、互いに平行をなす。 The first rotation axis, the second rotation axis, the third rotation axis, and the fourth rotation axis are perpendicular to the drive direction 121 and are parallel to each other.
　突起１２５は、力が加えられる作用点１４７を有する。突起１２５は、側面１２９に設けられ、側面１２８と側面１３１との中間に設けられる。マルチアレイレンズ１１５が作用点１４７を有してもよい。突起１２５以外の構造物が作用点１４７を有してもよい。板状ＳＭＡアクチュエーター１０７は、力を加える力点１４８を有する。力点１４８は、作用点１４７に当たる。 The protrusion 125 has an action point 147 to which a force is applied. The protrusion 125 is provided on the side surface 129 and is provided between the side surface 128 and the side surface 131. The multi-array lens 115 may have the action point 147. A structure other than the protrusion 125 may have the action point 147. The plate-like SMA actuator 107 has a force point 148 for applying a force. The force point 148 hits the action point 147.
　板状ＳＭＡアクチュエーター１０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター１０７の形状が図２及び図３に示される平坦な形状から図４及び図５に示される湾曲した形状に変化する。板状ＳＭＡアクチュエーター１０７の温度を上昇させるためには、板状ＳＭＡアクチュエーター１０７に電流が流され板状ＳＭＡアクチュエーター１０７が自己発熱させられてもよいし、板状ＳＭＡアクチュエーター１０７に熱結合されたヒーターが発熱させられ当該ヒーターにより板状ＳＭＡアクチュエーター１０７が加熱されてもよい。形状の変化により、図２及び図３に示される支持板１１０に相対的に近い位置から図４及び図５に示される支持板１１０から相対的に遠い位置へ力点１４８が移動し、力点１４８が作用点１４７に駆動方向１２１へ向かう力を加える。力点１４８が作用点１４７に加える力により、被駆動体１０４が駆動方向１２１に駆動される。駆動方向１２１は、被駆動体１０４を支持板１１０から遠ざける方向であり、マルチアレイレンズ１１５の光軸と平行をなす。駆動方向１２１が被駆動体１０４を支持体１０３に近づける方向であってもよい。被駆動体１０４の駆動により、レンズユニット１００の焦点位置が変化する。板状ＳＭＡアクチュエーター１０７が他の種類のアクチュエーターに置き換えられてもよい。例えば、板状ＳＭＡアクチュエーター１０７が線状ＳＭＡアクチュエーター、バイメタルアクチュエーター等に置き換えられてもよい。 When the temperature of the plate-like SMA actuator 107 rises, the shape of the plate-like SMA actuator 107 changes from the flat shape shown in FIGS. 2 and 3 to the curved shape shown in FIGS. 4 and 5. In order to raise the temperature of the plate-like SMA actuator 107, an electric current may be passed through the plate-like SMA actuator 107 to cause the plate-like SMA actuator 107 to self-heat, or a heater that is thermally coupled to the plate-like SMA actuator 107. The plate-like SMA actuator 107 may be heated by the heater. Due to the shape change, the force point 148 moves from a position relatively close to the support plate 110 shown in FIGS. 2 and 3 to a position relatively far from the support plate 110 shown in FIGS. A force toward the driving direction 121 is applied to the action point 147. The driven member 104 is driven in the driving direction 121 by the force applied by the force point 148 to the action point 147. The drive direction 121 is a direction in which the driven body 104 is moved away from the support plate 110 and is parallel to the optical axis of the multi-array lens 115. The driving direction 121 may be a direction in which the driven body 104 approaches the support body 103. The focus position of the lens unit 100 is changed by driving the driven body 104. The plate-like SMA actuator 107 may be replaced with another type of actuator. For example, the plate-like SMA actuator 107 may be replaced with a linear SMA actuator, a bimetal actuator, or the like.
　リンク機構１０５に属するリンク部材１３７は、細長形状物であり、側面１２８に沿って延在する。リンク機構１０６に属するリンク部材１３７は、細長形状物であり、側面１３１に沿って延在する。板状ＳＭＡアクチュエーター１０７は、細長形状物であり、側面１２９に沿って延在する。側面１２９は、側面１２８及び側面１３１と９０°異なる方向を向く。このことは、四角形状物１２４の側面に沿う空間を有効活用することに寄与し、レンズユニット１００を小型化することに寄与する。ただし、板状ＳＭＡアクチュエーター１０７が側面１２８又は側面１３１に沿って延在してもよい。 The link member 137 belonging to the link mechanism 105 is an elongated shape, and extends along the side surface 128. The link member 137 belonging to the link mechanism 106 is an elongated object, and extends along the side surface 131. The plate-like SMA actuator 107 is an elongated object and extends along the side surface 129. The side surface 129 faces the direction different from the side surface 128 and the side surface 131 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 124 and contributes to downsizing the lens unit 100. However, the plate-like SMA actuator 107 may extend along the side surface 128 or the side surface 131.
　支持棒１１１及び支持棒１１２は、駆動方向１２１から見て側面１３０に対向する。支持棒１１１及び支持棒１１２は、側面１２８及び側面１３１と垂直をなす方向について被駆動体１０４が存在する範囲からはみ出さない。このことは、側面１２８及び側面１３０と垂直をなす方向についてレンズユニット１００を小型化することに寄与する。 The support rod 111 and the support rod 112 face the side surface 130 when viewed from the driving direction 121. The support rod 111 and the support rod 112 do not protrude from the range where the driven body 104 exists in the direction perpendicular to the side surface 128 and the side surface 131. This contributes to reducing the size of the lens unit 100 in the direction perpendicular to the side surface 128 and the side surface 130.
　支持棒１１３は、側面１２８と側面１２９とを隔てる辺に沿って設置される。支持棒１１３が設置される場所が変更されてもよい。板状ＳＭＡアクチュエーター１０７は、結合点１５１を有する。結合点１５１は、支持棒１１３に結合される。 The support bar 113 is installed along the side separating the side surface 128 and the side surface 129. The place where the support bar 113 is installed may be changed. The plate-like SMA actuator 107 has a coupling point 151. The coupling point 151 is coupled to the support bar 113.
　突起１２５が設けられる側面１２９は、側面１２９の対面である側面１３０より支持部１３９に近い。このことは、被駆動体１０４の姿勢を崩すモーメントを発生しにくくすることに寄与し、被駆動体１０４の姿勢を維持しやすくすることに寄与する。 The side surface 129 on which the protrusion 125 is provided is closer to the support portion 139 than the side surface 130 that faces the side surface 129. This contributes to making it difficult to generate a moment that breaks the posture of the driven body 104, and contributes to making it easier to maintain the posture of the driven body 104.
　レンズユニット１００は、マイクロカメラユニットに組み込まれる。レンズユニット１００がマイクロカメラユニット以外の機器に組み込まれてもよい。 The lens unit 100 is incorporated in the micro camera unit. The lens unit 100 may be incorporated in a device other than the micro camera unit.
　第２実施形態
　第２実施形態は、レンズユニットに関する。以下では、第２実施形態のレンズユニットが第１実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第１実施形態についての説明が第２実施形態に援用される。第１実施形態以外の実施形態についての説明が第２実施形態に援用されてもよい。 Second Embodiment The second embodiment relates to a lens unit. Below, the point from which the lens unit of 2nd Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 1st Embodiment is used for 2nd Embodiment. The description about embodiments other than the first embodiment may be incorporated into the second embodiment.
　図６から図８までの模式図は、第２実施形態のレンズユニット２００を示す。図６は、上面図である。図７及び図８は、側面図である。 Schematic diagrams from FIG. 6 to FIG. 8 show the lens unit 200 of the second embodiment. FIG. 6 is a top view. 7 and 8 are side views.
　図６から図８までに示されるように、第２実施形態のレンズユニット２００は、支持体２０３、被駆動体２０４、リンク機構２０５、リンク機構２０６及び板状ＳＭＡアクチュエーター２０７を備える。 6 to 8, the lens unit 200 according to the second embodiment includes a support 203, a driven body 204, a link mechanism 205, a link mechanism 206, and a plate-like SMA actuator 207.
　支持体２０３は、支持板２１０、支持棒２１１、支持棒２１２、支持棒２１３を備える。 The support body 203 includes a support plate 210, a support bar 211, a support bar 212, and a support bar 213.
　被駆動体２０４は、マルチアレイレンズ２１５及びレンズホルダー２１６を備える。 The driven body 204 includes a multi-array lens 215 and a lens holder 216.
　レンズホルダー２１６は、四角形状物２２４及び突起２２５を備える。四角形状物２２４は、側面２２８、側面２２９、側面２３０及び側面２３１を有する。 The lens holder 216 includes a rectangular object 224 and a protrusion 225. The quadrangular object 224 has a side surface 228, a side surface 229, a side surface 230, and a side surface 231.
　リンク機構２０５は、２個の単位機構２３４を備える。リンク機構２０６は、２個の単位機構２３４を備える。 The link mechanism 205 includes two unit mechanisms 234. The link mechanism 206 includes two unit mechanisms 234.
　リンク機構２０５に属する２個の単位機構２３４及びリンク機構２０６に属する２個の単位機構２３４の各々は、リンク部材２３７、支持部２３８及び支持部２３９を備える。リンク部材２３７は、平棒状部２４２、被支持部２４３及び被支持部２４４を備える。 Each of the two unit mechanisms 234 belonging to the link mechanism 205 and the two unit mechanisms 234 belonging to the link mechanism 206 includes a link member 237, a support portion 238, and a support portion 239. The link member 237 includes a flat bar portion 242, a supported portion 243, and a supported portion 244.
　リンク機構２０５に属する支持部２３８は、支持棒２１１に結合され、リンク機構２０５に属する被支持部２４３を第１の回転軸の周りに回転可能に支持する。リンク機構２０５に属する支持部２３９は、側面２３１に結合され、リンク機構２０５に属する被支持部２４４を第２の回転軸の周りに回転可能に支持する。 The support portion 238 belonging to the link mechanism 205 is coupled to the support rod 211 and supports the supported portion 243 belonging to the link mechanism 205 so as to be rotatable around the first rotation axis. The support portion 239 belonging to the link mechanism 205 is coupled to the side surface 231 and supports the supported portion 244 belonging to the link mechanism 205 so as to be rotatable around the second rotation axis.
　リンク機構２０６に属する支持部２３８は、支持棒２１２に結合され、リンク機構２０６に属する被支持部２４３を第３の回転軸の周りに回転可能に支持する。リンク機構２０６に属する支持部２３９は、側面２２８に結合され、リンク機構２０６に属する被支持部２４４を第４の回転軸の周りに回転可能に支持する。 The support part 238 belonging to the link mechanism 206 is coupled to the support bar 212 and supports the supported part 243 belonging to the link mechanism 206 so as to be rotatable around the third rotation axis. The support portion 239 belonging to the link mechanism 206 is coupled to the side surface 228 and supports the supported portion 244 belonging to the link mechanism 206 so as to be rotatable around the fourth rotation axis.
　被駆動体２０４は、２個のリンク機構２０５及びリンク機構２０６により駆動方向２２１へ案内される。このことは、被駆動体２０４の姿勢を維持することを容易にする。リンク機構２０５は側面２３１に沿って設置され、リンク機構２０６は側面２３１の対面である側面２２８に沿って設置される。このことは、被駆動体２０４の姿勢を維持することをさらに容易にする。 The driven body 204 is guided in the driving direction 221 by the two link mechanisms 205 and the link mechanism 206. This facilitates maintaining the attitude of the driven body 204. The link mechanism 205 is installed along the side surface 231, and the link mechanism 206 is installed along the side surface 228 that faces the side surface 231. This makes it easier to maintain the attitude of the driven body 204.
　突起２２５は、力が加えられる作用点２４７を有する。突起２２５は、側面２２９に設けられる。板状ＳＭＡアクチュエーター２０７は、力を加える力点２４８を有する。力点２４８は、作用点２４７に当たる。 The protrusion 225 has an action point 247 to which a force is applied. The protrusion 225 is provided on the side surface 229. The plate-like SMA actuator 207 has a force point 248 for applying a force. The force point 248 hits the action point 247.
　板状ＳＭＡアクチュエーター２０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター２０７の形状が平坦な形状から湾曲した形状に変化する。形状の変化により、支持板２１０に相対的に近い位置から支持板２１０から相対的に遠い位置へ力点２４８が移動し、力点２４８が作用点２４７に駆動方向２２１へ向かう力を加える。力点２４８が作用点２４７に加える力により、被駆動体２０４が駆動方向２２１に駆動される。 When the temperature of the plate-like SMA actuator 207 rises, the shape of the plate-like SMA actuator 207 changes from a flat shape to a curved shape. Due to the change in shape, the force point 248 moves from a position relatively close to the support plate 210 to a position relatively distant from the support plate 210, and the force point 248 applies a force in the driving direction 221 to the action point 247. The driven member 204 is driven in the driving direction 221 by the force applied by the force point 248 to the action point 247.
　リンク機構２０５に属するリンク部材２３７は、細長形状物であり、側面２３１に沿って延在する。リンク機構２０６に属するリンク部材２３７は、細長形状物であり、側面２２８に沿って延在する。板状ＳＭＡアクチュエーター２０７は、細長形状物であり、側面２２９に沿って延在する。側面２２９は、側面２２８及び側面２３１と９０°異なる方向を向く。このことは、四角形状物２２４の側面に沿う空間を有効活用することに寄与し、レンズユニット２００を小型化することに寄与する。 The link member 237 belonging to the link mechanism 205 is an elongated shape, and extends along the side surface 231. The link member 237 belonging to the link mechanism 206 is an elongated object, and extends along the side surface 228. The plate-like SMA actuator 207 is an elongated object and extends along the side surface 229. The side surface 229 faces a direction different from the side surface 228 and the side surface 231 by 90 °. This contributes to the effective use of the space along the side surface of the rectangular object 224, and contributes to the miniaturization of the lens unit 200.
　支持棒２１１及び支持棒２１２は、駆動方向２２１から見て側面２２９に対向する。支持棒２１１及び支持棒２１２は、側面２２８及び側面２３１と垂直をなす方向について被駆動体２０４が存在する範囲からはみ出さない。このことは、側面２２８及び側面２３１と垂直をなす方向についてレンズユニット２００を小型化することに寄与する。 The support bar 211 and the support bar 212 face the side surface 229 when viewed from the driving direction 221. The support bar 211 and the support bar 212 do not protrude from the range where the driven body 204 exists in the direction perpendicular to the side surface 228 and the side surface 231. This contributes to reducing the size of the lens unit 200 in the direction perpendicular to the side surface 228 and the side surface 231.
　支持棒２１３は、駆動方向２２１から見て側面２２９に対向する。板状ＳＭＡアクチュエーター２０７は、結合点２５１を有する。結合点２５１は、支持棒２１３に結合される。 The support rod 213 faces the side surface 229 when viewed from the driving direction 221. The plate-like SMA actuator 207 has a coupling point 251. The coupling point 251 is coupled to the support bar 213.
　突起２２５が設けられる側面２２９は、側面２２９の対面である側面２３０より支持部２３９から遠い。 The side surface 229 on which the protrusion 225 is provided is farther from the support portion 239 than the side surface 230 that is the opposite side of the side surface 229.
　板状ＳＭＡアクチュエーター２０７は、側面２２９に沿って延在する。支持棒２１１及び支持棒２１２は、駆動方向２２１から見て側面２２９に対向する。板状ＳＭＡアクチュエーター２０７並びに支持棒２１１及び支持棒２１２は、側面２２９に沿って集中して設置される。側面２２９の対面である側面２３０は、開放される。このことは、側面２２９と垂直をなす方向についてレンズユニット２００を小型化することに寄与する。 The plate-like SMA actuator 207 extends along the side surface 229. The support bar 211 and the support bar 212 face the side surface 229 when viewed from the driving direction 221. The plate-like SMA actuator 207, the support bar 211, and the support bar 212 are concentrated along the side surface 229. The side surface 230 that is the opposite side of the side surface 229 is opened. This contributes to reducing the size of the lens unit 200 in the direction perpendicular to the side surface 229.
　第３実施形態
　第３実施形態は、レンズユニットに関する。以下では、第３実施形態のレンズユニットが第１実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第１実施形態についての説明が第３実施形態に援用される。第１実施形態以外の実施形態についての説明が第３実施形態に援用されてもよい。 Third Embodiment A third embodiment relates to a lens unit. Below, the point from which the lens unit of 3rd Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 1st Embodiment is used for 3rd Embodiment. The description about embodiments other than the first embodiment may be incorporated into the third embodiment.
　図９から図１１までの模式図は、第３実施形態のレンズユニットを示す。図９は、上面図である。図１０及び図１１は、側面図である。 9 to 11 schematically show the lens unit of the third embodiment. FIG. 9 is a top view. 10 and 11 are side views.
　図９から図１１までに示されるように、第３実施形態のレンズユニット３００は、支持体３０３、被駆動体３０４、リンク機構３０５、リンク機構３０６及び線状ＳＭＡアクチュエーター３０７を備える。 9 to 11, the lens unit 300 of the third embodiment includes a support 303, a driven body 304, a link mechanism 305, a link mechanism 306, and a linear SMA actuator 307.
　支持体３０３は、支持板３１０、支持棒３１１、支持棒３１２、支持棒３１３、支持棒３１４、ねじ３５４及びねじ３５５を備える。 The support 303 includes a support plate 310, a support bar 311, a support bar 312, a support bar 313, a support bar 314, a screw 354, and a screw 355.
　被駆動体３０４は、マルチアレイレンズ３１５及びレンズホルダー３１６を備える。 The driven body 304 includes a multi-array lens 315 and a lens holder 316.
　レンズホルダー３１６は、四角形状物３２４及び鉤３２５を備える。四角形状物３２４は、駆動方向３２１から見て四角形状であり、側面３２８、側面３２９、側面３３０及び側面３３１を有する。 The lens holder 316 includes a rectangular object 324 and a collar 325. The quadrangular object 324 has a quadrangular shape when viewed from the driving direction 321 and includes a side surface 328, a side surface 329, a side surface 330, and a side surface 331.
　リンク機構３０５は、２個の単位機構３３４を備える。リンク機構３０６は、２個の単位機構３３４を備える。 The link mechanism 305 includes two unit mechanisms 334. The link mechanism 306 includes two unit mechanisms 334.
　リンク機構３０５に属する２個の単位機構３３４及びリンク機構３０６に属する２個の単位機構３３４の各々は、リンク部材３３７、支持部３３８及び支持部３３９を備える。リンク部材３３７は、平棒状部３４２、被支持部３４３及び被支持部３４４を備える。 Each of the two unit mechanisms 334 belonging to the link mechanism 305 and the two unit mechanisms 334 belonging to the link mechanism 306 includes a link member 337, a support portion 338, and a support portion 339. The link member 337 includes a flat bar portion 342, a supported portion 343, and a supported portion 344.
　リンク機構３０５に属する支持部３３８は、支持棒３１１に結合され、リンク機構３０５に属する被支持部３４３を第１の回転軸の周りに回転可能に支持する。リンク機構３０５に属する支持部３３９は、側面３２８に結合され、リンク機構３０５に属する被支持部３４４を第２の回転軸の周りに回転可能に支持する。 The support portion 338 belonging to the link mechanism 305 is coupled to the support bar 311 and supports the supported portion 343 belonging to the link mechanism 305 so as to be rotatable around the first rotation axis. The support portion 339 belonging to the link mechanism 305 is coupled to the side surface 328 and supports the supported portion 344 belonging to the link mechanism 305 so as to be rotatable around the second rotation axis.
　リンク機構３０６に属する支持部３３８は、支持棒３１２に結合され、リンク機構３０６に属する被支持部３４３を第３の回転軸の周りに回転可能に支持する。リンク機構３０６に属する支持部３３９は、側面３３１に結合され、リンク機構３０６に属する被支持部３４４を第４の回転軸の周りに回転可能に支持する。 The support portion 338 belonging to the link mechanism 306 is coupled to the support bar 312 and supports the supported portion 343 belonging to the link mechanism 306 so as to be rotatable around the third rotation axis. The support portion 339 belonging to the link mechanism 306 is coupled to the side surface 331 and supports the supported portion 344 belonging to the link mechanism 306 so as to be rotatable around the fourth rotation axis.
　被駆動体３０４は、２個のリンク機構３０５及びリンク機構３０６により駆動方向３２１へ案内される。このことは、被駆動体３０４の姿勢を維持することを容易にする。リンク機構３０５は側面３２８に沿って設置され、リンク機構３０６は側面３２８の対面である側面３３１に沿って設置される。このことは、被駆動体３０４の姿勢を維持することをさらに容易にする。 The driven body 304 is guided in the driving direction 321 by the two link mechanisms 305 and the link mechanism 306. This facilitates maintaining the posture of the driven body 304. The link mechanism 305 is installed along the side surface 328, and the link mechanism 306 is installed along the side surface 331 that faces the side surface 328. This makes it easier to maintain the posture of the driven body 304.
　鉤３２５は、力が加えられる作用点３４７を有する。鉤３２５は、側面３２９に設けられる。線状ＳＭＡアクチュエーター３０７は、力を加える力点３４８を有する。力点３４８は、線状ＳＭＡアクチュエーター３０７の中央にある。線状ＳＭＡアクチュエーター３０７は鉤３２５に引っ掛けた状態で張られる。力点３４８は、作用点３４７に当たる。 鉤 325 has an action point 347 where force is applied. The collar 325 is provided on the side surface 329. The linear SMA actuator 307 has a force point 348 that applies a force. The force point 348 is at the center of the linear SMA actuator 307. The linear SMA actuator 307 is stretched while being hooked on the hook 325. The force point 348 hits the action point 347.
　線状ＳＭＡアクチュエーター３０７の温度が上昇した場合は、線状ＳＭＡアクチュエーター３０７が長さ方向に収縮する。線状ＳＭＡアクチュエーター３０７の温度を上昇させるためには、線状ＳＭＡアクチュエーター３０７に電流が流され線状ＳＭＡアクチュエーター３０７が自己発熱させられる。収縮により、支持板３１０に相対的に近い位置から支持板３１０から相対的に遠い位置へ力点３４８が移動し、力点３４８が作用点３４７に駆動方向３２１へ向かう力を加える。力点３４８が作用点３４７に加える力により、被駆動体３０４が駆動方向３２１に駆動される。 When the temperature of the linear SMA actuator 307 rises, the linear SMA actuator 307 contracts in the length direction. In order to raise the temperature of the linear SMA actuator 307, a current is passed through the linear SMA actuator 307, and the linear SMA actuator 307 is self-heated. Due to the contraction, the force point 348 moves from a position relatively close to the support plate 310 to a position relatively distant from the support plate 310, and the force point 348 applies a force in the driving direction 321 to the action point 347. The driven member 304 is driven in the driving direction 321 by the force applied by the force point 348 to the action point 347.
　リンク機構３０５に属するリンク部材３３７は、細長形状物であり、側面３２８に沿って延在する。リンク機構３０６に属するリンク部材３３７は、細長形状物であり、側面３３１に沿って延在する。線状ＳＭＡアクチュエーター３０７は、細長形状物であり、側面３２９に沿って延在する。側面３２９は、側面３２８及び側面３３１と９０°異なる方向を向く。このことは、四角形状物３２４の側面に沿う空間を有効活用することに寄与し、レンズユニット３００を小型化することに寄与する。 The link member 337 belonging to the link mechanism 305 is an elongated shape, and extends along the side surface 328. The link member 337 belonging to the link mechanism 306 is an elongated shape, and extends along the side surface 331. The linear SMA actuator 307 is an elongated shape and extends along the side surface 329. The side surface 329 faces a direction different from the side surface 328 and the side surface 331 by 90 °. This contributes to the effective use of the space along the side surface of the rectangular object 324, and contributes to the miniaturization of the lens unit 300.
　支持棒３１１及び支持棒３１２は、駆動方向３２１から見て側面３３０に対向する。支持棒３１１及び支持棒３１２は、側面３２８及び側面３３１と垂直をなす方向について被駆動体３０４が存在する範囲からはみ出さない。このことは、側面３２８及び側面３３１と垂直をなす方向についてレンズユニット３００を小型化することに寄与する。 The support bar 311 and the support bar 312 are opposed to the side surface 330 when viewed in the driving direction 321. The support bar 311 and the support bar 312 do not protrude from the range where the driven body 304 exists in the direction perpendicular to the side surface 328 and the side surface 331. This contributes to reducing the size of the lens unit 300 in the direction perpendicular to the side surface 328 and the side surface 331.
　支持棒３１３は、側面３２８と側面３２９とを隔てる辺に沿う。支持棒３１４は、側面３２９と側面３３１とを隔てる辺に沿う。支持棒３１３及び支持棒３１４が設置される場所が変更されてもよい。線状ＳＭＡアクチュエーター３０７は、結合点３５１ａ及び結合点３５１ｂを備える。結合点３５１ａ及び結合点３５１ｂは、線状ＳＭＡアクチュエーター３０７の両端にある。結合点３５１ａは、ねじ３５４により支持棒３１３にねじ止めされ、支持棒３１３に固定される。結合点３５１ｂは、ねじ３５５により支持棒３１４にねじ止めされ、支持棒３１４に固定される。結合点３５１ａ及び結合点３５１ｂの両方又は片方がねじ止め以外により固定されてもよい。例えば、結合点３５１ａ及び結合点３５１ｂの両方又は片方が、接着、リベット止め、ハンダ付、溶接等により固定されてもよい。 The support bar 313 is along a side separating the side surface 328 and the side surface 329. The support bar 314 extends along a side separating the side surface 329 and the side surface 331. The place where the support bar 313 and the support bar 314 are installed may be changed. The linear SMA actuator 307 includes a coupling point 351a and a coupling point 351b. The coupling point 351 a and the coupling point 351 b are at both ends of the linear SMA actuator 307. The coupling point 351 a is screwed to the support bar 313 by a screw 354 and is fixed to the support bar 313. The coupling point 351b is screwed to the support bar 314 by a screw 355 and fixed to the support bar 314. Both or one of the coupling point 351a and the coupling point 351b may be fixed by other than screwing. For example, both or one of the connection points 351a and 351b may be fixed by adhesion, riveting, soldering, welding, or the like.
　鉤３２５が設けられる側面３２９は、側面３２９の対面である側面３３０より支持部３３９に近い。このことは、被駆動体３０４の姿勢を崩すモーメントを発生しにくくすることに寄与し、被駆動体３０４の姿勢を維持しやすくすることに寄与する。 The side surface 329 on which the flange 325 is provided is closer to the support portion 339 than the side surface 330 that faces the side surface 329. This contributes to making it difficult to generate a moment that causes the posture of the driven body 304 to be lost, and contributes to making it easier to maintain the posture of the driven body 304.
　第４実施形態
　第４実施形態は、レンズユニットに関する。以下では、第４実施形態のレンズユニットが第１実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第１実施形態についての説明が第４実施形態に援用される。第１実施形態以外の実施形態についての説明が第４実施形態に援用されてもよい。 Fourth Embodiment The fourth embodiment relates to a lens unit. Below, the point from which the lens unit of 4th Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 1st Embodiment is used for 4th Embodiment. The description about embodiments other than the first embodiment may be incorporated into the fourth embodiment.
　図１２から図１４までの模式図は、第４実施形態のレンズユニットを示す。図１２は、上面図である。図１３及び図１４は、側面図である。 Schematic diagrams from FIG. 12 to FIG. 14 show the lens unit of the fourth embodiment. FIG. 12 is a top view. 13 and 14 are side views.
　図１２から図１４までに示されるように、第４実施形態のレンズユニット４００は、支持体４０３、被駆動体４０４、リンク機構４０５及び板状ＳＭＡアクチュエーター４０７を備える。 As shown in FIGS. 12 to 14, the lens unit 400 of the fourth embodiment includes a support body 403, a driven body 404, a link mechanism 405, and a plate-like SMA actuator 407.
　支持体４０３は、支持板４１０、支持棒４１１及び支持棒４１３を備える。 The support body 403 includes a support plate 410, a support bar 411, and a support bar 413.
　被駆動体４０４は、マルチアレイレンズ４１５及びレンズホルダー４１６を備える。 The driven body 404 includes a multi-array lens 415 and a lens holder 416.
　レンズホルダー４１６は、四角形状物４２４及び突起４２５を備える。四角形状物４２４は、側面４２８、側面４２９、側面４３０及び側面４３１を有する。 The lens holder 416 includes a rectangular object 424 and a protrusion 425. The rectangular object 424 has a side surface 428, a side surface 429, a side surface 430, and a side surface 431.
　リンク機構４０５は、２個の単位機構４３４を備える。 The link mechanism 405 includes two unit mechanisms 434.
　２個の単位機構４３４の各々は、リンク部材４３７、支持部４３８及び支持部４３９を備える。リンク部材４３７は、平棒状部４４２、被支持部４４３及び被支持部４４４を備える。 Each of the two unit mechanisms 434 includes a link member 437, a support portion 438, and a support portion 439. The link member 437 includes a flat bar portion 442, a supported portion 443, and a supported portion 444.
　支持部４３８は、支持棒４１１に結合され、被支持部４４３を第１の回転軸の周りに回転可能に支持する。支持部４３９は、側面４２８に結合され、被支持部４４４を第２の回転軸の周りに回転可能に支持する。 The support portion 438 is coupled to the support rod 411, and supports the supported portion 443 so as to be rotatable around the first rotation axis. The support portion 439 is coupled to the side surface 428 and supports the supported portion 444 so as to be rotatable around the second rotation axis.
　被駆動体４０４は、１個のリンク機構４０５により駆動方向４２１へ案内される。このことは、レンズユニット４００の小型化に寄与する。 The driven body 404 is guided in the driving direction 421 by one link mechanism 405. This contributes to downsizing of the lens unit 400.
　突起４２５は、力が加えられる作用点４４７を有する。突起４２５は、側面４２９に設けられ、側面４２８寄りに設けられる。板状ＳＭＡアクチュエーター４０７は、力を加える力点４４８を有する。 The protrusion 425 has an action point 447 where a force is applied. The protrusion 425 is provided on the side surface 429 and is provided closer to the side surface 428. The plate-like SMA actuator 407 has a force point 448 for applying a force.
　板状ＳＭＡアクチュエーター４０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター４０７の形状が平坦な形状から湾曲した形状に変化する。形状の変化により、支持板４１０に相対的に近い位置から支持板４１０から相対的に遠い位置へ力点４４８が移動し、力点４４８が作用点４４７に駆動方向４２１へ向かう力を加える。力点４４８が作用点４４７に加える力により、被駆動体４０４が駆動方向４２１に駆動される。 When the temperature of the plate-like SMA actuator 407 rises, the shape of the plate-like SMA actuator 407 changes from a flat shape to a curved shape. Due to the shape change, the force point 448 moves from a position relatively close to the support plate 410 to a position relatively distant from the support plate 410, and the force point 448 applies a force toward the driving point 447 in the driving direction 421. The driven body 404 is driven in the driving direction 421 by the force applied by the force point 448 to the action point 447.
　リンク部材４３７は、細長形状物であり、側面４２８に沿って延在する。板状ＳＭＡアクチュエーター４０７は、細長形状物であり、側面４２９に沿って延在する。側面４２９は、側面４２８と９０°異なる方向を向く。このことは、四角形状物４２４の側面に沿う空間を有効活用することに寄与し、レンズユニット４００を小型化することに寄与する。 The link member 437 is an elongated shape and extends along the side surface 428. The plate-like SMA actuator 407 has an elongated shape and extends along the side surface 429. The side surface 429 faces a direction different from the side surface 428 by 90 °. This contributes to the effective use of the space along the side surface of the rectangular object 424 and contributes to the miniaturization of the lens unit 400.
　支持棒４１１は、駆動方向４２１から見て側面４３０に対向する。支持棒４１１は、側面４２８及び側面４３１と垂直をなす方向について被駆動体４０４が存在する範囲からはみ出さない。このことは、側面４２８及び側面４３１と垂直をなす方向についてレンズユニット４００を小型化することに寄与する。 The support rod 411 faces the side surface 430 when viewed in the driving direction 421. The support bar 411 does not protrude from the range where the driven body 404 exists in the direction perpendicular to the side surface 428 and the side surface 431. This contributes to reducing the size of the lens unit 400 in the direction perpendicular to the side surface 428 and the side surface 431.
　支持棒４１３は、側面４２９に対向し、側面４２９と側面４３１とを隔てる辺に沿って設けられる。板状ＳＭＡアクチュエーター４０７は、結合点４５１を有する。結合点４５１は、支持棒４１３に結合される。 The support bar 413 is provided along the side that faces the side surface 429 and separates the side surface 429 and the side surface 431. The plate-like SMA actuator 407 has a coupling point 451. The coupling point 451 is coupled to the support bar 413.
　突起４２５が設けられる側面４２９は、側面４２９の対面である側面４３０より支持部４３９に近い。このことは、被駆動体４０４の姿勢を崩すモーメントを発生しにくくすることに寄与し、被駆動体４０４の姿勢を維持しやすくすることに寄与する。 The side surface 429 provided with the protrusion 425 is closer to the support portion 439 than the side surface 430 that is the opposite side of the side surface 429. This contributes to making it difficult to generate a moment that breaks the posture of the driven body 404 and to make it easier to maintain the posture of the driven body 404.
　第５実施形態
　第５実施形態は、レンズユニットに関する。以下では、第５実施形態のレンズユニットが第１実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第１実施形態についての説明が第５実施形態に援用される。第１実施形態以外の実施形態についての説明が第５実施形態に援用されてもよい。 Fifth Embodiment The fifth embodiment relates to a lens unit. Below, the point from which the lens unit of 5th Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 1st Embodiment is used for 5th Embodiment. The description about embodiments other than the first embodiment may be incorporated into the fifth embodiment.
　図１５から図１７までの模式図は、第５実施形態のレンズユニットを示す。図１５は、上面図である。図１６及び図１７は、側面図である。 15 to 17 schematically show the lens unit of the fifth embodiment. FIG. 15 is a top view. 16 and 17 are side views.
　図１５から図１７までに示されるように、第５実施形態のレンズユニット５００は、支持体５０３、被駆動体５０４、リンク機構５０５、リンク機構５０６及び板状ＳＭＡアクチュエーター５０７を備える。 As shown in FIGS. 15 to 17, the lens unit 500 of the fifth embodiment includes a support body 503, a driven body 504, a link mechanism 505, a link mechanism 506, and a plate-like SMA actuator 507.
　支持体５０３は、支持板５１０、支持棒５１１、支持棒５１２及び支持棒５１３を備える。 The support body 503 includes a support plate 510, a support bar 511, a support bar 512, and a support bar 513.
　被駆動体５０４は、マルチアレイレンズ５１５及びレンズホルダー５１６を備える。 The driven body 504 includes a multi-array lens 515 and a lens holder 516.
　レンズホルダー５１６は、四角形状物５２４及び突起５２５を備える。四角形状物５２４は、側面５２８、側面５２９、側面５３０及び側面５３１を有する。 The lens holder 516 includes a rectangular object 524 and a protrusion 525. The quadrangular object 524 has a side surface 528, a side surface 529, a side surface 530, and a side surface 531.
　リンク機構５０５は、２個の単位機構５３４を備える。リンク機構５０６は、２個の単位機構５３４を備える。 The link mechanism 505 includes two unit mechanisms 534. The link mechanism 506 includes two unit mechanisms 534.
　リンク機構５０５に属する２個の単位機構５３４及びリンク機構５０６に属する２個の単位機構５３４の各々は、リンク部材５３７、支持部５３８及び支持部５３９を備える。リンク部材５３７は、平棒状部５４２、被支持部５４３及び被支持部５４４を備える。 Each of the two unit mechanisms 534 belonging to the link mechanism 505 and the two unit mechanisms 534 belonging to the link mechanism 506 includes a link member 537, a support portion 538, and a support portion 539. The link member 537 includes a flat bar portion 542, a supported portion 543, and a supported portion 544.
　リンク機構５０５に属する支持部５３８は、支持棒５１１に結合され、リンク機構５０５に属する被支持部５４３を第１の回転軸の周りに回転可能に支持する。リンク機構５０５に属する支持部５３９は、側面５２８に結合され、リンク機構５０５に属する被支持部５４４を第２の回転軸の周りに回転可能に支持する。 The support portion 538 belonging to the link mechanism 505 is coupled to the support rod 511 and supports the supported portion 543 belonging to the link mechanism 505 so as to be rotatable around the first rotation axis. The support portion 539 belonging to the link mechanism 505 is coupled to the side surface 528 and supports the supported portion 544 belonging to the link mechanism 505 so as to be rotatable around the second rotation axis.
　リンク機構５０６に属する支持部５３８は、支持棒５１２に結合され、リンク機構５０６に属する被支持部５４３を第３の回転軸の周りに回転可能に支持する。リンク機構５０６に属する支持部５３９は、側面５３０に結合され、リンク機構５０６に属する被支持部５４４を第４の回転軸の周りに回転可能に支持する。 The support portion 538 belonging to the link mechanism 506 is coupled to the support rod 512, and supports the supported portion 543 belonging to the link mechanism 506 so as to be rotatable around the third rotation axis. The support portion 539 belonging to the link mechanism 506 is coupled to the side surface 530 and supports the supported portion 544 belonging to the link mechanism 506 so as to be rotatable around the fourth rotation axis.
　被駆動体５０４は、２個のリンク機構５０５及びリンク機構５０６により駆動方向５２１へ案内される。このことは、被駆動体５０４の姿勢を維持することを容易にする。リンク機構５０５は側面５２８に沿って設置され、リンク機構５０６は側面５２８と９０°異なる方向を向く側面５３０に沿って設置される。 The driven body 504 is guided in the driving direction 521 by the two link mechanisms 505 and the link mechanism 506. This facilitates maintaining the attitude of the driven body 504. The link mechanism 505 is installed along the side surface 528, and the link mechanism 506 is installed along the side surface 530 that faces a direction different from the side surface 528 by 90 °.
　突起５２５は、力が加えられる作用点５４７を有する。突起５２５は、側面５２９に設けられる。板状ＳＭＡアクチュエーター５０７は、力を加える力点５４８を有する。力点５４８は、作用点５４７に当たる。 The projection 525 has an action point 547 where a force is applied. The protrusion 525 is provided on the side surface 529. The plate-like SMA actuator 507 has a force point 548 for applying a force. The force point 548 hits the action point 547.
　板状ＳＭＡアクチュエーター５０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター５０７の形状が平坦な形状から湾曲した形状に変化する。形状の変化により、支持板５１０に相対的に近い位置から支持板５１０から相対的に遠い位置へ力点５４８が移動し、力点５４８が作用点５４７に駆動方向５２１へ向かう力を加える。力点５４８が作用点５４７に加える力により、被駆動体５０４が駆動方向５２１に駆動される。 When the temperature of the plate-like SMA actuator 507 rises, the shape of the plate-like SMA actuator 507 changes from a flat shape to a curved shape. Due to the change in shape, the force point 548 moves from a position relatively close to the support plate 510 to a position relatively far from the support plate 510, and the force point 548 applies a force toward the driving point 547 in the driving direction 521. The driven body 504 is driven in the driving direction 521 by the force applied by the force point 548 to the action point 547.
　リンク機構５０５に属するリンク部材５３７は、細長形状物であり、側面５２８に沿って延在する。リンク機構５０６に属するリンク部材５３７は、細長形状物であり、側面５３０に沿って延在する。板状ＳＭＡアクチュエーター５０７は、細長形状物であり、側面５２９に沿って延在する。側面５２９は、側面５２８と９０°異なる方向を向く。このことは、四角形状物５２４の側面に沿う空間を有効活用することに寄与し、レンズユニット５００を小型化することに寄与する。 The link member 537 belonging to the link mechanism 505 is an elongated shape and extends along the side surface 528. The link member 537 belonging to the link mechanism 506 is an elongated shape, and extends along the side surface 530. The plate-like SMA actuator 507 has an elongated shape and extends along the side surface 529. The side surface 529 faces in a direction different from the side surface 528 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 524, and contributes to downsizing the lens unit 500.
　支持棒５１１は、駆動方向５２１から見て側面５３０に対向する。支持棒５１１は、側面５２８及び側面５３１と垂直をなす方向について被駆動体５０４が存在する範囲からはみ出さない。このことは、側面５２８及び側面５３１と垂直をなす方向についてレンズユニット５００を小型化することに寄与する。 The support rod 511 faces the side surface 530 when viewed from the drive direction 521. The support bar 511 does not protrude from the range where the driven body 504 exists in the direction perpendicular to the side surface 528 and the side surface 531. This contributes to reducing the size of the lens unit 500 in the direction perpendicular to the side surface 528 and the side surface 531.
　支持棒５１２は、駆動方向５２１から見て側面５３１に対向する。 The support rod 512 faces the side surface 531 when viewed from the drive direction 521.
　突起５２５が設けられる側面５２９は、側面５２９の対面である側面５３０より支持部５３９に近い。このことは、被駆動体５０４の姿勢を崩すモーメントを発生しにくくすることに寄与し、被駆動体５０４の姿勢を維持しやすくすることに寄与する。 The side surface 529 on which the protrusion 525 is provided is closer to the support portion 539 than the side surface 530 that is the opposite surface of the side surface 529. This contributes to making it difficult to generate a moment that breaks the posture of the driven body 504, and contributes to easily maintaining the posture of the driven body 504.
　第６実施形態
　第６実施形態は、レンズユニットに関する。 Sixth Embodiment The sixth embodiment relates to a lens unit.
　図１８及び図１９の模式図は、第６実施形態のレンズユニットを示す。図１８は、上面図である。図１９は、側面図である。 18 and 19 show a lens unit according to the sixth embodiment. FIG. 18 is a top view. FIG. 19 is a side view.
　図１８及び図１９に示されるように、第６実施形態のレンズユニット６００は、支持体６０３、被駆動体６０４、２個の平行バネ６０５及び板状ＳＭＡアクチュエーター６０７を備える。レンズユニット６００がこれらの構成物以外の構成物を備えてもよい。レンズユニット６００が備える平行バネの数が増減されてもよい。 As shown in FIGS. 18 and 19, the lens unit 600 of the sixth embodiment includes a support 603, a driven body 604, two parallel springs 605, and a plate-like SMA actuator 607. The lens unit 600 may include components other than these components. The number of parallel springs provided in the lens unit 600 may be increased or decreased.
　支持体６０３は、支持板６１０、支持棒６１１及び支持棒６１２を備える。支持板６１０が板でない構造物に置き換えられてもよい。支持棒６１１及び支持棒６１２の両方又は片方が棒でない構造物に置き換えられてもよい。支持棒６１１は、被結合部６１５を備える。支持棒６１２は、被結合部６１８を備える。 The support body 603 includes a support plate 610, a support bar 611, and a support bar 612. The support plate 610 may be replaced with a structure that is not a plate. A structure in which both or one of the support bar 611 and the support bar 612 is not a bar may be used. The support bar 611 includes a coupled portion 615. The support bar 612 includes a coupled portion 618.
　支持体６０３は、２個の平行バネ６０５及び板状ＳＭＡアクチュエーター６０７を介して被駆動体６０４を支持する。 The support body 603 supports the driven body 604 via two parallel springs 605 and a plate-like SMA actuator 607.
　被駆動体６０４は、マルチアレイレンズ６２１及びレンズホルダー６２２を備える。被駆動体６０４がこれらの構成物以外の構成物を備えてもよい。被駆動体６０４がマルチアレイレンズ６２１に代えて又はマルチアレイレンズ６２１に加えてマルチアレイレンズでないレンズを備えてもよい。レンズホルダー６２２が省略されてもよい。 The driven body 604 includes a multi-array lens 621 and a lens holder 622. The driven body 604 may include components other than these components. The driven body 604 may include a lens that is not a multi-array lens instead of or in addition to the multi-array lens 621. The lens holder 622 may be omitted.
　マルチアレイレンズ６２１は、１６個のレンズ６２５を備える。１６個のレンズ６２５は、駆動方向６２８と垂直をなす方向に行列配列される。行列配列の行数は４である。行列配列の列数は４である。行列配列の行数及び列数の両方又は片方が増減されてもよい。一般的に言えば、マルチアレイレンズ６２１は、ｍ×ｎ個のレンズを備える。ｍ×ｎ個のレンズは、駆動方向６２８と垂直をなす方向に行列配列される。行列配列の行数はｍである。行列配列の列数はｎである。ｍ及びｎは、自然数である。ｍ×ｎは、２以上の自然数である。 The multi-array lens 621 includes 16 lenses 625. The 16 lenses 625 are arranged in a matrix in a direction perpendicular to the driving direction 628. The number of rows in the matrix array is four. The number of columns in the matrix array is 4. Both or one of the number of rows and the number of columns of the matrix array may be increased or decreased. Generally speaking, the multi-array lens 621 includes m × n lenses. The m × n lenses are arranged in a matrix in a direction perpendicular to the driving direction 628. The number of rows in the matrix array is m. The number of columns in the matrix array is n. m and n are natural numbers. m × n is a natural number of 2 or more.
　レンズホルダー６２２は、四角形状物６３１、突起６３２、被結合部６３３、被結合部６３４を備える。四角形状物６３１は、駆動方向６２８から見て四角形状であり、側面６３７、側面６３８、側面６３９及び側面６４０を有する。側面６３７、側面６３８、側面６３９及び側面６４０は、駆動方向６２８と垂直をなす方向を向く。側面６３８は、側面６３７と９０°異なる方向を向く。側面６３９は、側面６３８の対面である。側面６４０は、側面６３７の対面である。側面６３７、側面６３８、側面６３９及び側面６４０は、レンズホルダー６２２に属する。側面６３７、側面６３８、側面６３９及び側面６４０がマルチアレイレンズ６２１に属してもよい。レンズホルダー６２２は、マルチアレイレンズ６２１を保持する。物が駆動方向６２８から見て完全な四角形である場合だけでなく実質的に四角形である場合も物が四角形状物であるとみなされる。例えば、物の角部が面取りされている場合、物の側面の一部が緩やかな曲面である場合等も、物が四角形状物であるとみなされる。 The lens holder 622 includes a rectangular object 631, a protrusion 632, a coupled portion 633, and a coupled portion 634. The quadrangular object 631 has a quadrangular shape when viewed from the driving direction 628 and includes a side surface 637, a side surface 638, a side surface 639 and a side surface 640. The side surface 637, the side surface 638, the side surface 639, and the side surface 640 are oriented in a direction perpendicular to the driving direction 628. The side surface 638 faces a direction different from the side surface 637 by 90 °. The side surface 639 is a facing surface of the side surface 638. The side surface 640 is a facing surface of the side surface 637. The side surface 637, the side surface 638, the side surface 639, and the side surface 640 belong to the lens holder 622. The side surface 637, the side surface 638, the side surface 639, and the side surface 640 may belong to the multi-array lens 621. The lens holder 622 holds the multi-array lens 621. An object is considered to be a quadrilateral object not only when it is a perfect rectangle when viewed from the driving direction 628 but also when it is substantially a rectangle. For example, when a corner portion of an object is chamfered or when a part of a side surface of the object is a gently curved surface, the object is regarded as a quadrangular object.
　２個の平行バネ６０５の各々は、板バネ６４３及び板バネ６４４を備える。２個の平行バネ６０５の各々が備える板バネの数が増やされてもよい。２個の平行バネ６０５は、駆動方向６２８に互いに離される。 Each of the two parallel springs 605 includes a leaf spring 643 and a leaf spring 644. The number of leaf springs provided in each of the two parallel springs 605 may be increased. The two parallel springs 605 are separated from each other in the driving direction 628.
　板バネ６４３は、平板状物であり、平板状部６４７、結合部６４８及び結合部６４９を備える。結合部６４８及び結合部６４９は、平板状部６４７の両端にある。板バネ６４４は、平板状物であり、平板状部６５２、結合部６５３及び結合部６５４を備える。結合部６５３及び結合部６５４は、平板状部６５２の両端にある。板バネ６４３が線バネ（サスペンションワイヤー）に置き換えられてもよく、板バネ６４４が線バネに置き換えられてもよい。 The plate spring 643 is a flat plate and includes a flat plate portion 647, a coupling portion 648, and a coupling portion 649. The coupling portion 648 and the coupling portion 649 are at both ends of the flat plate portion 647. The leaf spring 644 is a flat plate and includes a flat plate portion 652, a coupling portion 653, and a coupling portion 654. The coupling part 653 and the coupling part 654 are at both ends of the flat plate-like part 652. The leaf spring 643 may be replaced with a wire spring (suspension wire), and the leaf spring 644 may be replaced with a wire spring.
　結合部６４８は、被結合部６１５に接着され、被結合部６１５に結合される。結合部６４９は、被結合部６３３に接着され、被結合部６３３に結合される。結合部６５３は、被結合部６１８に接着され、被結合部６１８に結合される。結合部６５４は、被結合部６３４に接着され、被結合部６３４に結合される。 The coupling portion 648 is bonded to the coupled portion 615 and coupled to the coupled portion 615. The coupling portion 649 is bonded to the coupled portion 633 and coupled to the coupled portion 633. The coupling portion 653 is bonded to the coupled portion 618 and coupled to the coupled portion 618. The coupling portion 654 is bonded to the coupled portion 634 and coupled to the coupled portion 634.
　板バネ６４３の弾性変形により、結合部６４９は駆動方向６２８に移動可能である。板バネ６４４の弾性変形により、結合部６５４は駆動方向６２８に移動可能である。 The coupling portion 649 can move in the driving direction 628 by elastic deformation of the leaf spring 643. The coupling portion 654 can move in the driving direction 628 by elastic deformation of the leaf spring 644.
　２個の平行バネ６０５により、被駆動体６０４が駆動される場合に被駆動体６０４の姿勢が維持され、被駆動体６０４が駆動方向６２８に平行移動する。２個の平行バネ６０５は、平行ガイドとして機能する。 When the driven body 604 is driven by the two parallel springs 605, the posture of the driven body 604 is maintained, and the driven body 604 is translated in the driving direction 628. The two parallel springs 605 function as a parallel guide.
　被駆動体６０４は、２個の板バネ６４３及び板バネ６４４により駆動方向６２８へ案内される。このことは、被駆動体６０４の姿勢を維持することを容易にする。板バネ６４３は側面６３７に沿って設置され、板バネ６４４は側面６３７の対面である側面６４０に沿って設置される。このことは、被駆動体６０４の姿勢を維持することをさらに容易にする。 The driven body 604 is guided in the driving direction 628 by the two leaf springs 643 and the leaf springs 644. This facilitates maintaining the attitude of the driven body 604. The leaf spring 643 is installed along the side surface 637, and the leaf spring 644 is installed along the side surface 640, which is the opposite side of the side surface 637. This makes it easier to maintain the attitude of the driven body 604.
　突起６３２は、力が加えられる作用点６５７を有する。突起６３２は、側面６３８に設けられ、側面６３７と側面６４０との中間に設けられる。マルチアレイレンズ６２１が作用点６５７を有してもよい。突起６３２以外の構造物が作用点６５７を有してもよい。板状ＳＭＡアクチュエーター６０７は、力を加える力点６５８を有する。力点６５８は、作用点６５７に当たる。 The protrusion 632 has an action point 657 to which a force is applied. The protrusion 632 is provided on the side surface 638 and is provided between the side surface 637 and the side surface 640. The multi-array lens 621 may have an action point 657. A structure other than the protrusion 632 may have the action point 657. The plate-like SMA actuator 607 has a force point 658 for applying a force. The force point 658 hits the action point 657.
　板状ＳＭＡアクチュエーター６０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター６０７の形状が平坦な形状から湾曲した形状に変化する。板状ＳＭＡアクチュエーター６０７の温度を上昇させるためには、板状ＳＭＡアクチュエーター６０７に電流が流され板状ＳＭＡアクチュエーター６０７が自己発熱させられてもよいし、板状ＳＭＡアクチュエーター６０７に熱結合されたヒーターが発熱させられ当該ヒーターにより板状ＳＭＡアクチュエーター６０７が加熱されてもよい。形状の変化により、支持板６１０に相対的に近い位置から支持板６１０から相対的に遠い位置へ力点６５８が移動し、力点６５８が作用点６５７に駆動方向６２８へ向かう力を加える。力点６５８が作用点６５７に加える力により、被駆動体６０４が駆動方向６２８に駆動される。駆動方向６２８は、被駆動体６０４を支持板６１０から遠ざける方向であり、マルチアレイレンズ６２１の光軸と平行をなす。駆動方向６２８が被駆動体６０４を支持板６１０に近づける方向であってもよい。被駆動体６０４の駆動により、レンズユニット６００の焦点位置が変化する。板状ＳＭＡアクチュエーター６０７が他の種類のアクチュエーターに置き換えられてもよい。例えば、板状ＳＭＡアクチュエーター６０７が線状ＳＭＡアクチュエーター、バイメタルアクチュエーター等に置き換えられてもよい。 When the temperature of the plate-like SMA actuator 607 rises, the shape of the plate-like SMA actuator 607 changes from a flat shape to a curved shape. In order to raise the temperature of the plate-like SMA actuator 607, a current may be passed through the plate-like SMA actuator 607 to cause the plate-like SMA actuator 607 to self-heat, or a heater thermally coupled to the plate-like SMA actuator 607 The plate-like SMA actuator 607 may be heated by the heater. Due to the change in shape, the force point 658 moves from a position relatively close to the support plate 610 to a position relatively far from the support plate 610, and the force point 658 applies a force toward the driving point 657 in the driving direction 628. The driven body 604 is driven in the driving direction 628 by the force applied by the force point 658 to the action point 657. The driving direction 628 is a direction in which the driven body 604 is moved away from the support plate 610 and is parallel to the optical axis of the multi-array lens 621. The driving direction 628 may be a direction in which the driven body 604 approaches the support plate 610. The focus position of the lens unit 600 is changed by driving the driven body 604. The plate-like SMA actuator 607 may be replaced with another type of actuator. For example, the plate-like SMA actuator 607 may be replaced with a linear SMA actuator, a bimetal actuator, or the like.
　板バネ６４３は、細長形状物であり、側面６３７に沿って延在する。板バネ６４４は、細長形状物であり、側面６４０に沿って延在する。板状ＳＭＡアクチュエーター６０７は、細長形状物であり、側面６３８に沿って延在する。側面６３８は、側面６３７及び側面６４０と９０°異なる方向を向く。このことは、四角形状物６３１の側面に沿う空間を有効活用することに寄与し、レンズユニット６００を小型化することに寄与する。ただし、板状ＳＭＡアクチュエーター６０７が側面６３７又は側面６４０に沿って延在してもよい。 The leaf spring 643 is an elongated object and extends along the side surface 637. The leaf spring 644 is an elongated object and extends along the side surface 640. The plate-like SMA actuator 607 has an elongated shape and extends along the side surface 638. The side surface 638 faces in a direction different from the side surface 637 and the side surface 640 by 90 °. This contributes to effective utilization of the space along the side surface of the rectangular object 631 and contributes to downsizing the lens unit 600. However, the plate-like SMA actuator 607 may extend along the side surface 637 or the side surface 640.
　支持棒６１１及び支持棒６１２は、駆動方向６２８から見て側面６３９に対向する。支持棒６１１及び支持棒６１２は、側面６３７及び側面６４０と垂直をなす方向について被駆動体６０４が存在する範囲からはみ出さない。このことは、側面６３７及び側面６４０と垂直をなす方向についてレンズユニット６００を小型化することに寄与する。 The support rod 611 and the support rod 612 face the side surface 639 when viewed from the drive direction 628. The support bar 611 and the support bar 612 do not protrude from the range where the driven body 604 exists in the direction perpendicular to the side surface 637 and the side surface 640. This contributes to reducing the size of the lens unit 600 in the direction perpendicular to the side surface 637 and the side surface 640.
　突起６３２が設けられる側面６３８は、側面６３８の対面である側面６３９より被結合部６３３及び被結合部６３４に近い。このことは、被駆動体６０４の姿勢を崩すモーメントを発生しにくくすることに寄与し、被駆動体６０４の姿勢を維持しやすくすることに寄与する。 The side surface 638 where the protrusion 632 is provided is closer to the coupled portion 633 and the coupled portion 634 than the side surface 639 which is the opposite side of the side surface 638. This contributes to making it difficult to generate a moment that breaks the attitude of the driven body 604, and contributes to making it easier to maintain the attitude of the driven body 604.
　第７実施形態
　第７実施形態は、レンズユニットに関する。以下では、第７実施形態のレンズユニットが第６実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第６実施形態についての説明が第７実施形態に援用される。第６実施形態以外の実施形態についての説明が第７実施形態に援用されてもよい。 Seventh Embodiment The seventh embodiment relates to a lens unit. Below, the point from which the lens unit of 7th Embodiment differs from the lens unit of 6th Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 6th Embodiment is used for 7th Embodiment. The description about embodiments other than the sixth embodiment may be incorporated into the seventh embodiment.
　図２０の模式図は、第７実施形態のレンズユニットの上面図である。 20 is a top view of the lens unit of the seventh embodiment.
　図２０に示されるように、第７実施形態のレンズユニット７００は、支持体７０３、被駆動体７０４、２個の平行バネ７０５（図２０には、２個の平行バネ７０５のうちの１個のみが図示されている。）及び板状ＳＭＡアクチュエーター７０７を備える。 As shown in FIG. 20, the lens unit 700 of the seventh embodiment includes a support 703, a driven body 704, two parallel springs 705 (in FIG. 20, one of the two parallel springs 705). Only a plate-like SMA actuator 707 is shown.
　支持体７０３は、支持板７１０、支持棒７１１及び支持棒７１２を備える。支持棒７１１は、被結合部７１５を備える。支持棒７１２は、被結合部７１８を備える。 The support body 703 includes a support plate 710, a support bar 711, and a support bar 712. The support bar 711 includes a coupled portion 715. The support bar 712 includes a coupled portion 718.
　被駆動体７０４は、マルチアレイレンズ７２１及びレンズホルダー７２２を備える。 The driven body 704 includes a multi-array lens 721 and a lens holder 722.
　レンズホルダー７２２は、四角形状物７３１、突起７３２、被結合部７３３及び被結合部７３４を備える。四角形状物７３１は、側面７３７、側面７３８、側面７３９及び側面７４０を有する。 The lens holder 722 includes a rectangular object 731, a protrusion 732, a coupled portion 733, and a coupled portion 734. The quadrangular object 731 has a side surface 737, a side surface 738, a side surface 739 and a side surface 740.
　２個の平行バネ７０５の各々は、板バネ７４３及び板バネ７４４を備える。 Each of the two parallel springs 705 includes a leaf spring 743 and a leaf spring 744.
　板バネ７４３は、平板状部７４７、結合部７４８及び結合部７４９を備える。板バネ７４４は、平板状部７５２、結合部７５３及び結合部７５４を備える。 The plate spring 743 includes a flat plate portion 747, a coupling portion 748, and a coupling portion 749. The leaf spring 744 includes a flat plate portion 752, a coupling portion 753, and a coupling portion 754.
　結合部７４８は、被結合部７１５に結合される。被結合部７４９は、被結合部７３３に結合される。結合部７５３は、被結合部７１８に結合される。結合部７５４は、被結合部７３４に結合される。 The coupling unit 748 is coupled to the coupled unit 715. The coupled portion 749 is coupled to the coupled portion 733. The coupling portion 753 is coupled to the coupled portion 718. The coupling portion 754 is coupled to the coupled portion 734.
　板バネ７４３の弾性変形により、結合部７４９は駆動方向に移動可能である。板バネ７４４の弾性変形により、結合部７５４は駆動方向に移動可能である。 By the elastic deformation of the leaf spring 743, the coupling portion 749 can move in the driving direction. Due to the elastic deformation of the leaf spring 744, the coupling portion 754 can move in the driving direction.
　被駆動体７０４は、２個の板バネ７４３及び板バネ７４４により駆動方向へ案内される。このことは、被駆動体７０４の姿勢を維持することを容易にする。板バネ７４３は側面７３７に沿って設置され、板バネ７４４は側面７３７の対面である側面７４０に沿って設置される。このことは、被駆動体７０４の姿勢を維持することをさらに容易にする。 The driven body 704 is guided in the driving direction by two leaf springs 743 and a leaf spring 744. This facilitates maintaining the attitude of the driven body 704. The leaf spring 743 is installed along the side surface 737, and the leaf spring 744 is installed along the side surface 740, which is the opposite side of the side surface 737. This further facilitates maintaining the attitude of the driven body 704.
　突起７３２は、力が加えられる作用点を有する。突起７３２は、側面７３８に設けられる。板状ＳＭＡアクチュエーター７０７は、力を加える力点を有する。力点は、作用点に当たる。 The protrusion 732 has an action point where force is applied. The protrusion 732 is provided on the side surface 738. The plate-like SMA actuator 707 has a force point for applying a force. The force point is the point of action.
　板状ＳＭＡアクチュエーター７０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター７０７の形状が平坦な形状から湾曲した形状に変化する。形状の変化により、支持板７１０に相対的に近い位置から支持板７１０から相対的に遠い位置へ力点が移動し、力点が作用点に駆動方向へ向かう力を加える。力点が作用点に加える力により、被駆動体７０４が駆動方向に駆動される。 When the temperature of the plate-like SMA actuator 707 rises, the shape of the plate-like SMA actuator 707 changes from a flat shape to a curved shape. Due to the shape change, the power point moves from a position relatively close to the support plate 710 to a position relatively far from the support plate 710, and the force point applies a force toward the driving direction to the action point. The driven member 704 is driven in the driving direction by the force applied by the force point to the action point.
　板バネ７４３は、細長形状物であり、側面７３７に沿って延在する。板バネ７４４は、細長形状物であり、側面７４０に沿って延在する。板状ＳＭＡアクチュエーター７０７は、細長形状物であり、側面７３８に沿って延在する。側面７３８は、側面７３７及び側面７４０と９０°異なる方向を向く。このことは、四角形状物７３１の側面に沿う空間を有効活用することに寄与し、レンズユニット７００を小型化することに寄与する。 The plate spring 743 is an elongated shape and extends along the side surface 737. The leaf spring 744 is an elongated shape and extends along the side surface 740. The plate-like SMA actuator 707 is an elongated object and extends along the side surface 738. The side surface 738 faces a direction different from the side surface 737 and the side surface 740 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 731 and contributes to downsizing the lens unit 700.
　支持棒７１１は、駆動方向から見て側面７３７に対向する。支持棒７１２は、駆動方向から見て側面７４０に対向する。支持棒７１１及び支持棒７１２は、側面７３８及び側面７３９と垂直をなす方向について被駆動体７０４が存在する範囲からはみ出さない。このことは、側面７３８及び側面７３９と垂直をなす方向についてレンズユニット７００を小型化することに寄与する。 The support rod 711 faces the side surface 737 when viewed from the driving direction. The support bar 712 faces the side surface 740 when viewed from the driving direction. The support bar 711 and the support bar 712 do not protrude from the range where the driven body 704 exists in the direction perpendicular to the side surface 738 and the side surface 739. This contributes to reducing the size of the lens unit 700 in the direction perpendicular to the side surface 738 and the side surface 739.
　突起７３２が設けられる側面７３８は、側面７３８の対面である側面７３９より被結合部７３３及び被結合部７３４に近い。このことは、被駆動体７０４の姿勢を崩すモーメントを発生しにくくすることに寄与し、被駆動体７０４の姿勢を維持しやすくすることに寄与する。 The side surface 738 on which the protrusion 732 is provided is closer to the coupled portion 733 and the coupled portion 734 than the side surface 739 that is the opposite surface of the side surface 738. This contributes to making it difficult to generate a moment that breaks the attitude of the driven body 704, and contributes to easily maintaining the attitude of the driven body 704.
　第８実施形態
　第８実施形態は、レンズユニットに関する。以下では、第８実施形態のレンズユニットが第６実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第６実施形態についての説明が第８実施形態に援用される。第６実施形態以外の実施形態についての説明が第８実施形態に援用されてもよい。 Eighth Embodiment The eighth embodiment relates to a lens unit. In the following, the difference between the lens unit of the eighth embodiment and the lens unit of the sixth embodiment will be mainly described. About the point which is not demonstrated, the description about 6th Embodiment is used for 8th Embodiment. The description about embodiments other than the sixth embodiment may be incorporated into the eighth embodiment.
　図２１の模式図は、第８実施形態のレンズユニットの上面図である。 21 is a top view of the lens unit of the eighth embodiment.
　図２１に示されるように、第８実施形態のレンズユニット８００は、支持体８０３、被駆動体８０４、２個の平行バネ８０５（図２１には、２個の平行バネ８０５のうちの１個のみが図示されている。）及び板状ＳＭＡアクチュエーター８０７を備える。 As shown in FIG. 21, the lens unit 800 of the eighth embodiment includes a support body 803, a driven body 804, two parallel springs 805 (FIG. 21 shows one of the two parallel springs 805). Only a plate-like SMA actuator 807 is shown.
　支持体８０３は、支持板８１０、支持棒８１１及び支持棒８１２を備える。支持棒８１１は、被結合部８１５を備える。支持棒８１２は、被結合部８１８を備える。 The support body 803 includes a support plate 810, a support bar 811, and a support bar 812. The support bar 811 includes a coupled portion 815. The support bar 812 includes a coupled portion 818.
　被駆動体８０４は、マルチアレイレンズ８２１及びレンズホルダー８２２を備える。 The driven body 804 includes a multi-array lens 821 and a lens holder 822.
　レンズホルダー８２２は、四角形状物８３１、突起８３２、被結合部８３３及び被結合部８３４を備える。四角形状物８３１は、側面８３７、側面８３８、側面８３９及び側面８４０を有する。 The lens holder 822 includes a rectangular object 831, a protrusion 832, a coupled portion 833, and a coupled portion 834. The quadrangular object 831 has a side surface 837, a side surface 838, a side surface 839, and a side surface 840.
　２個の平行バネ８０５の各々は、板バネ８４３及び板バネ８４４を備える。 Each of the two parallel springs 805 includes a leaf spring 843 and a leaf spring 844.
　板バネ８４３は、平板状部８４７、結合部８４８及び結合部８４９を備える。板バネ８４４は、平板状部８５２、結合部８５３及び結合部８５４を備える。 The plate spring 843 includes a flat plate-shaped portion 847, a coupling portion 848, and a coupling portion 849. The leaf spring 844 includes a flat plate portion 852, a coupling portion 853, and a coupling portion 854.
　結合部８４８は、被結合部８１５に結合される。結合部８４９は、被結合部８３３に結合される。結合部８５３は、被結合部８１８に結合される。結合部８５４は、被結合部８３４に結合される。 The coupling unit 848 is coupled to the coupled unit 815. The coupling portion 849 is coupled to the coupled portion 833. The coupling portion 853 is coupled to the coupled portion 818. The coupling unit 854 is coupled to the coupled unit 834.
　板バネ８４３の弾性変形により、結合部８４９は駆動方向に移動可能である。板バネ８４４の弾性変形により、結合部８５４は駆動方向に移動可能である。 Due to the elastic deformation of the leaf spring 843, the coupling portion 849 can move in the driving direction. By the elastic deformation of the leaf spring 844, the coupling portion 854 can move in the driving direction.
　被駆動体８０４は、２個の板バネ８４３及び板バネ８４４により駆動方向へ案内される。このことは、被駆動体８０４の姿勢を維持することを容易にする。板バネ８４３は側面８３７に沿って設置され、板バネ８４４は側面８３７の対面である側面８４０に沿って設置される。このことは、被駆動体８０４の姿勢を維持することをさらに容易にする。 The driven body 804 is guided in the driving direction by two leaf springs 843 and a leaf spring 844. This makes it easy to maintain the posture of the driven body 804. The leaf spring 843 is installed along the side surface 837, and the leaf spring 844 is installed along the side surface 840 that is the opposite side of the side surface 837. This makes it easier to maintain the attitude of the driven body 804.
　突起８３２は、力が加えられる作用点を有する。突起８３２は、側面８３９に設けられる。板状ＳＭＡアクチュエーター８０７は、力を加える力点を有する。力点は、作用点に当たる。 The protrusion 832 has an action point where a force is applied. The protrusion 832 is provided on the side surface 839. The plate-like SMA actuator 807 has a force point for applying a force. The force point is the point of action.
　板状ＳＭＡアクチュエーター８０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター８０７の形状が平坦な形状から湾曲した形状に変化する。形状の変化により、支持板８１０に相対的に近い位置から支持板８１０から相対的に遠い位置へ力点が移動し、力点が作用点に駆動方向へ向かう力を加える。力点が作用点に加える力により、被駆動体８０４が駆動方向に駆動される。 When the temperature of the plate-like SMA actuator 807 rises, the shape of the plate-like SMA actuator 807 changes from a flat shape to a curved shape. Due to the shape change, the force point moves from a position relatively close to the support plate 810 to a position relatively far from the support plate 810, and the force point applies a force toward the driving direction to the action point. The driven member 804 is driven in the driving direction by the force applied by the force point to the action point.
　板バネ８４３は、細長形状物であり、側面８３７に沿って延在する。板バネ８４４は、細長形状物であり、側面８４０に沿って延在する。板状ＳＭＡアクチュエーター８０７は、細長形状物であり、側面８３９に沿って延在する。側面８３９は、側面８３７及び側面８４０と９０°異なる方向を向く。このことは、四角形状物８３１の側面に沿う空間を有効活用することに寄与し、レンズユニット８００を小型化することに寄与する。 The leaf spring 843 is an elongated object and extends along the side surface 837. The leaf spring 844 is an elongated shape and extends along the side surface 840. The plate-like SMA actuator 807 has an elongated shape and extends along the side surface 839. The side surface 839 faces a direction different from the side surface 837 and the side surface 840 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 831 and contributes to downsizing the lens unit 800.
　支持棒８１１は、駆動方向から見て側面８３９に対向する。支持棒８１２は、駆動方向から見て側面８３９に対向する。支持棒８１１及び支持棒８１２は、側面８３７及び側面８４０と垂直をなす方向について被駆動体８０４が存在する範囲からはみ出さない。このことは、側面８３７及び側面８４０と垂直をなす方向についてレンズユニット８００を小型化することに寄与する。 The support bar 811 faces the side surface 839 when viewed from the driving direction. The support bar 812 faces the side surface 839 when viewed from the driving direction. The support bar 811 and the support bar 812 do not protrude from the range where the driven body 804 exists in the direction perpendicular to the side surface 837 and the side surface 840. This contributes to reducing the size of the lens unit 800 in the direction perpendicular to the side surface 837 and the side surface 840.
　突起８３２が設けられる側面８３９は、側面８３９の対面である側面８３８より被結合部８３３及び被結合部８３４から遠い。 The side surface 839 on which the protrusion 832 is provided is farther from the coupled portion 833 and the coupled portion 834 than the side surface 838 which is the opposite side of the side surface 839.
　板状ＳＭＡアクチュエーター８０７は、側面８３９に沿って延在する。支持棒８１１及び支持棒８１２は、駆動方向から見て側面８３９に対向する。板状ＳＭＡアクチュエーター８０７並びに支持棒８１１及び支持棒８１２は、側面８３９に沿って集中して設置される。側面８３９の対面である側面８３８は、開放される。このことは、側面８３９と垂直をなす方向についてレンズユニット８００を小型化することに寄与する。 The plate-like SMA actuator 807 extends along the side surface 839. The support bar 811 and the support bar 812 face the side surface 839 when viewed from the driving direction. The plate-like SMA actuator 807, the support bar 811 and the support bar 812 are concentrated and installed along the side surface 839. A side surface 838 that is opposite to the side surface 839 is opened. This contributes to downsizing the lens unit 800 in the direction perpendicular to the side surface 839.
　第９実施形態
　第９実施形態は、レンズユニットに関する。以下では、第９実施形態のレンズユニットが第６実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第６実施形態についての説明が第９実施形態に援用される。第６実施形態以外の実施形態についての説明が第９実施形態に援用されてもよい。 Ninth Embodiment The ninth embodiment relates to a lens unit. Below, the point from which the lens unit of 9th Embodiment differs from the lens unit of 6th Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 6th Embodiment is used for 9th Embodiment. The description about embodiments other than the sixth embodiment may be incorporated into the ninth embodiment.
　図２２の模式図は、第９実施形態のレンズユニットの上面図である。 22 is a top view of the lens unit of the ninth embodiment.
　図２２に示されるように、第９実施形態のレンズユニット９００は、支持体９０３、被駆動体９０４、２個の平行バネ９０５（図２２には、２個の平行バネ９０５のうちの１個のみが図示されている。）及び板状ＳＭＡアクチュエーター９０７を備える。 As shown in FIG. 22, the lens unit 900 of the ninth embodiment includes a support 903, a driven body 904, two parallel springs 905 (FIG. 22 shows one of the two parallel springs 905. Only a plate-like SMA actuator 907 is shown.
　支持体９０３は、支持板９１０、支持棒９１１及び支持棒９１２を備える。支持棒９１１は、被結合部９１５を備える。支持棒９１２は、被結合部９１８を備える。 The support body 903 includes a support plate 910, a support bar 911, and a support bar 912. The support bar 911 includes a coupled portion 915. The support bar 912 includes a coupled portion 918.
　被駆動体９０４は、マルチアレイレンズ９２１及びレンズホルダー９２２を備える。 The driven body 904 includes a multi-array lens 921 and a lens holder 922.
　マルチアレイレンズ９２１は、被結合部９３３及び被結合部９３４を備える。レンズホルダー９２２は、四角形状物９３１及び突起９３２を備える。四角形状物９３１は、側面９３７、側面９３８、側面９３９及び側面９４０を有する。 The multi-array lens 921 includes a coupled portion 933 and a coupled portion 934. The lens holder 922 includes a quadrangular object 931 and a protrusion 932. The quadrangular object 931 has a side surface 937, a side surface 938, a side surface 939, and a side surface 940.
　２個の平行バネ９０５の各々は、板バネ９４３及び板バネ９４４を備える。板バネ９４３及び板バネ９４４の各々は、つづら折り状の平面形状を有する。板バネ９４３及び板バネ９４４の各々がつづら折り状の平面形状を有する場合は、バネ長が長くなり、バネ定数が小さくても必要な駆動量が得られる。 Each of the two parallel springs 905 includes a leaf spring 943 and a leaf spring 944. Each of the plate spring 943 and the plate spring 944 has a zigzag planar shape. When each of the plate spring 943 and the plate spring 944 has a zigzag planar shape, the spring length becomes long, and a necessary driving amount can be obtained even if the spring constant is small.
　板バネ９４３は、平板状部９４７、結合部９４８及び結合部９４９を備える。板バネ９４４は、平板状部９５２、結合部９５３及び結合部９５４を備える。 The leaf spring 943 includes a flat plate portion 947, a coupling portion 948, and a coupling portion 949. The leaf spring 944 includes a flat plate portion 952, a coupling portion 953, and a coupling portion 954.
　結合部９４８は、被結合部９１５に結合される。結合部９４９は、被結合部９３３に結合される。結合部９５３は、被結合部９１８に結合される。結合部９５４は、被結合部９３４に結合される。 The coupling unit 948 is coupled to the coupled unit 915. The coupling part 949 is coupled to the coupled part 933. The coupling portion 953 is coupled to the coupled portion 918. The coupling portion 954 is coupled to the coupled portion 934.
　板バネ９４３の弾性変形により、結合部９４９は駆動方向に移動可能である。板バネ９４４の弾性変形により、結合部９５４は駆動方向に移動可能である。 The coupling portion 949 can move in the driving direction by elastic deformation of the plate spring 943. Due to the elastic deformation of the leaf spring 944, the coupling portion 954 can move in the driving direction.
　被駆動体９０４は、２個の板バネ９４３及び板バネ９４４により駆動方向へ案内される。このことは、被駆動体９０４の姿勢を維持することを容易にする。板バネ９４３は側面９３７に沿って設置され、板バネ９４４は側面９３７の対面である側面９４０に沿って設置される。このことは、被駆動体９０４の姿勢を維持することをさらに容易にする。 The driven body 904 is guided in the driving direction by two leaf springs 943 and a leaf spring 944. This facilitates maintaining the attitude of the driven body 904. The leaf spring 943 is installed along the side surface 937, and the leaf spring 944 is installed along the side surface 940, which is the opposite side of the side surface 937. This further facilitates maintaining the attitude of the driven body 904.
　突起９３２は、力が加えられる作用点を有する。突起９３２は、側面９３８に設けられる。板状ＳＭＡアクチュエーター９０７は、力を加える力点を有する。力点は、作用点に当たる。 The protrusion 932 has an action point where a force is applied. The protrusion 932 is provided on the side surface 938. The plate-like SMA actuator 907 has a force point for applying a force. The force point is the point of action.
　板状ＳＭＡアクチュエーター９０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター９０７の形状が平坦な形状から湾曲した形状に変化する。形状の変化により、支持板９１０に相対的に近い位置から支持板９１０から相対的に遠い位置へ力点が移動し、力点が作用点に駆動方向へ向かう力を加える。力点が作用点に加える力により、被駆動体９０４が駆動方向に駆動される。 When the temperature of the plate-like SMA actuator 907 rises, the shape of the plate-like SMA actuator 907 changes from a flat shape to a curved shape. Due to the change in shape, the force point moves from a position relatively close to the support plate 910 to a position relatively distant from the support plate 910, and the force point applies a force in the driving direction to the action point. The driven body 904 is driven in the driving direction by the force applied by the force point to the action point.
　板バネ９４３は、細長形状物であり、側面９３７に沿って延在する。板バネ９４４は、細長形状物であり、側面９４０に沿って延在する。板状ＳＭＡアクチュエーター９０７は、細長形状物であり、側面９３８に沿って延在する。側面９３８は、側面９３７及び側面９４０と９０°異なる方向を向く。このことは、四角形状物９３１の側面に沿う空間を有効活用することに寄与し、レンズユニット９００を小型化することに寄与する。 The leaf spring 943 is an elongated object and extends along the side surface 937. The leaf spring 944 is an elongated shape and extends along the side surface 940. The plate-like SMA actuator 907 has an elongated shape and extends along the side surface 938. The side surface 938 faces a direction different from the side surface 937 and the side surface 940 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 931, and contributes to downsizing the lens unit 900.
　支持棒９１１及び支持棒９１２は、駆動方向から見て側面９３９に対向する。支持棒９１１及び支持棒９１２は、側面９３７及び側面９４０と垂直をなす方向について被駆動体９０４が存在する範囲からはみ出さない。このことは、側面９３７及び側面９４０と垂直をなす方向についてレンズユニット９００を小型化することに寄与する。 The support rod 911 and the support rod 912 face the side surface 939 when viewed from the driving direction. The support bar 911 and the support bar 912 do not protrude from the range where the driven body 904 exists in the direction perpendicular to the side surface 937 and the side surface 940. This contributes to reducing the size of the lens unit 900 in the direction perpendicular to the side surface 937 and the side surface 940.
　突起９３２が設けられる側面９３８は、側面９３８の対面である側面９３９より被結合部９３３及び被結合部９３４に近い。このことは、被駆動体９０４の姿勢を崩すモーメントを発生しにくくすることに寄与し、被駆動体９０４の姿勢を維持しやすくすることに寄与する。 The side surface 938 on which the protrusion 932 is provided is closer to the coupled portion 933 and the coupled portion 934 than the side surface 939 that is the opposite side of the side surface 938. This contributes to making it difficult to generate a moment that breaks the attitude of the driven body 904, and contributes to easily maintaining the attitude of the driven body 904.
　第１０実施形態
　第１０実施形態は、レンズユニットに関する。以下では、第１０実施形態のレンズユニットが第１実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第１実施形態についての説明が第１０実施形態に援用される。第１実施形態以外の実施形態についての説明が第１０実施形態に援用されてもよい。 Tenth Embodiment A tenth embodiment relates to a lens unit. Below, the point from which the lens unit of 10th Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 1st Embodiment is used for 10th Embodiment. The description about embodiments other than the first embodiment may be incorporated into the tenth embodiment.
　図２３の模式図は、第１０実施形態のレンズユニットの側面図である。 23 is a side view of the lens unit of the tenth embodiment.
　図２３に示されるように、第１０実施形態のレンズユニット１０００は、支持体１００３、支持体１００４、被駆動体１００５、リンク機構１００６、板状ＳＭＡアクチュエーター１００７及びマルチアレイレンズ１００８を備える。マルチアレイレンズ１００８がマルチアレイレンズでないレンズに置き換えられてもよい。 23, the lens unit 1000 according to the tenth embodiment includes a support 1003, a support 1004, a driven body 1005, a link mechanism 1006, a plate-like SMA actuator 1007, and a multi-array lens 1008. The multi-array lens 1008 may be replaced with a lens that is not a multi-array lens.
　支持体１００３は、支持板１０１１、支持棒１０１２及び支持棒１０１３を備える。支持体１００３は、リンク機構１００６及び板状ＳＭＡアクチュエーター１００７を介して被駆動体１００５を支持する。支持体１００４は、マルチアレイレンズ１００８を支持する。支持体１００４は、支持体１００３に結合される。 The support body 1003 includes a support plate 1011, a support bar 1012, and a support bar 1013. The support body 1003 supports the driven body 1005 via the link mechanism 1006 and the plate-like SMA actuator 1007. The support body 1004 supports the multi-array lens 1008. Support 1004 is coupled to support 1003.
　被駆動体１００５は、レンズ１０１６及びレンズホルダー１０１７を備える。レンズ１０１６がマルチアレイレンズに置き換えられてもよい。レンズ１０６は単一のレンズであるが、レンズ１０６が複数のレンズに置き換えられてもよい。 The driven body 1005 includes a lens 1016 and a lens holder 1017. The lens 1016 may be replaced with a multi-array lens. The lens 106 is a single lens, but the lens 106 may be replaced with a plurality of lenses.
　レンズホルダー１０１７は、四角形状物１０２０及び突起１０２１を備える。四角形状物１０２０は、側面１０２４、側面１０２５及び側面１０２６を有する。レンズホルダー１０１７は、レンズ１０１６を保持する。 The lens holder 1017 includes a rectangular object 1020 and a protrusion 1021. The rectangular object 1020 has a side surface 1024, a side surface 1025, and a side surface 1026. The lens holder 1017 holds the lens 1016.
　リンク機構１００６は、２個の単位機構１０２９を備える。 The link mechanism 1006 includes two unit mechanisms 1029.
　２個の単位機構１０２９の各々は、リンク部材１０３２、支持部１０３３及び支持部１０３４を備える。リンク部材１０３２は、平棒状部１０３７、被支持部１０３８及び被支持部１０３９を備える。支持部１０３３は、支持棒１０１２に結合され、被支持部１０３８を第１の回転軸の周りに回転可能に支持する。支持部１０３４は、側面１０２４に結合され、被支持部１０３９を第２の回転軸の周りに回転可能に支持する。 Each of the two unit mechanisms 1029 includes a link member 1032, a support portion 1033, and a support portion 1034. The link member 1032 includes a flat bar portion 1037, a supported portion 1038, and a supported portion 1039. The support portion 1033 is coupled to the support rod 1012 and supports the supported portion 1038 so as to be rotatable around the first rotation axis. The support portion 1034 is coupled to the side surface 1024 and supports the supported portion 1039 so as to be rotatable around the second rotation axis.
　突起１０２１は、力が加えられる作用点１０４２を有する。突起１０２１は、側面１０２５に設けられる。板状ＳＭＡアクチュエーター１００７は、力を加える力点１０４３を有する。力点１０４３は、作用点１０４２に当たる。 The protrusion 1021 has an action point 1042 where a force is applied. The protrusion 1021 is provided on the side surface 1025. The plate-like SMA actuator 1007 has a force point 1043 for applying a force. The force point 1043 hits the action point 1042.
　板状ＳＭＡアクチュエーター１００７の温度が上昇した場合は、板状ＳＭＡアクチュエーター１００７の形状が平坦な形状から湾曲した形状に変化する。形状の変化により、支持板１０１１に相対的に近い位置から支持板１０１１から相対的に遠い位置へ力点１０４３が移動し、力点１０４３が作用点１０４２に駆動方向１０４６へ向かう力を加える。力点１０４３が作用点１０４２に加える力により、被駆動体１００５が駆動方向１０４６に駆動される。被駆動体１００５の駆動により、レンズユニット１０００の焦点距離及び焦点位置が変化する。 When the temperature of the plate-like SMA actuator 1007 rises, the shape of the plate-like SMA actuator 1007 changes from a flat shape to a curved shape. Due to the change in shape, the force point 1043 moves from a position relatively close to the support plate 1011 to a position relatively far from the support plate 1011, and the force point 1043 applies a force in the driving direction 1046 to the action point 1042. The driven body 1005 is driven in the driving direction 1046 by the force applied by the force point 1043 to the action point 1042. By driving the driven body 1005, the focal length and the focal position of the lens unit 1000 change.
　リンク部材１０３２は、細長形状物であり、側面１０２４に沿って延在する。板状ＳＭＡアクチュエーター１００７は、細長形状物であり、側面１０２５に沿って延在する。側面１０２５は、側面１０２４と９０°異なる方向を向く。このことは、四角形状物１０２０の側面に沿う空間を有効活用することに寄与し、レンズユニット１０００を小型化することに寄与する。 The link member 1032 is an elongated object, and extends along the side surface 1024. The plate-like SMA actuator 1007 is an elongated object, and extends along the side surface 1025. The side surface 1025 faces a direction different from the side surface 1024 by 90 °. This contributes to effective use of the space along the side surface of the rectangular object 1020, and contributes to downsizing the lens unit 1000.
　第１１実施形態
　第１１実施形態は、レンズユニットに関する。以下では、第１１実施形態のレンズユニットが第１実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第１実施形態についての説明が第１１実施形態に援用される。第１実施形態以外の実施形態についての説明が第１１実施形態に援用されてもよい。 Eleventh Embodiment The eleventh embodiment relates to a lens unit. Below, the point from which the lens unit of 11th Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 1st Embodiment is used for 11th Embodiment. The description about embodiments other than the first embodiment may be incorporated into the eleventh embodiment.
　図２４の模式図は、第１１実施形態のレンズユニットの上面図である。 24 is a top view of the lens unit of the eleventh embodiment.
　図２４に示されるように、第１１実施形態のレンズユニット１１００は、支持体１１０３、被駆動体１１０４、リンク機構１１０５及び板状ＳＭＡアクチュエーター１１０７を備える。 24, the lens unit 1100 of the eleventh embodiment includes a support 1103, a driven body 1104, a link mechanism 1105, and a plate-like SMA actuator 1107.
　支持体１１０３は、支持板１１１０、支持棒１１１１及び支持棒１１１３を備える。 The support 1103 includes a support plate 1110, a support bar 1111, and a support bar 1113.
　被駆動体１１０４は、マルチアレイレンズ１１１５及びレンズホルダー１１１６を備える。 The driven body 1104 includes a multi-array lens 1115 and a lens holder 1116.
　レンズホルダー１１１６は、四角形状物１１２４及び突起１１２５を備える。四角形状物１１２４は、側面１１２８、側面１１２９、側面１１３０及び側面１１３１を有する。 The lens holder 1116 includes a rectangular object 1124 and a protrusion 1125. The rectangular object 1124 has a side surface 1128, a side surface 1129, a side surface 1130, and a side surface 1131.
　リンク機構１１０５は、２個の単位機構１１３４を備える（図２４には、２個の単位機構１１３４のうちの１個のみが図示されている。）。 The link mechanism 1105 includes two unit mechanisms 1134 (only one of the two unit mechanisms 1134 is shown in FIG. 24).
　２個の単位機構１１３４の各々は、リンク部材１１３７、支持部１１３８及び支持部１１３９を備える。リンク部材１１３７は、平棒状部１１４２、被支持部１１４３及び被支持部１１４４を備える。 Each of the two unit mechanisms 1134 includes a link member 1137, a support portion 1138, and a support portion 1139. The link member 1137 includes a flat bar portion 1142, a supported portion 1143, and a supported portion 1144.
　支持部１１３８は、支持棒１１１１に結合され、被支持部１１４３を第１の回転軸の周りに回転可能に支持する。支持部１１３９は、側面１１２８に結合され、被支持部１１４４を第２の回転軸の周りに回転可能に支持する。 The support portion 1138 is coupled to the support rod 1111 and supports the supported portion 1143 so as to be rotatable around the first rotation axis. The support portion 1139 is coupled to the side surface 1128 and supports the supported portion 1144 to be rotatable around the second rotation axis.
　被駆動体１１０４は、１個のリンク機構１１０５により駆動方向へ案内される。このことは、レンズユニット１１００の小型化に寄与する。 The driven body 1104 is guided in the driving direction by one link mechanism 1105. This contributes to downsizing of the lens unit 1100.
　突起１１２５は、力が加えられる作用点を有する。板状ＳＭＡアクチュエーター１１０７は、力を加える力点を有する。 The protrusion 1125 has an action point where a force is applied. The plate-like SMA actuator 1107 has a force point for applying a force.
　板状ＳＭＡアクチュエーター１１０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター１１０７の形状が平坦な形状から湾曲した形状に変化する。形状の変化により、支持板１１１０に相対的に近い位置から支持板１１１０から相対的に遠い位置へ力点が移動し、力点が作用点に駆動方向へ向かう力を加える。力点が作用点に加える力により、被駆動体１１０４が駆動方向に駆動される。 When the temperature of the plate-like SMA actuator 1107 rises, the shape of the plate-like SMA actuator 1107 changes from a flat shape to a curved shape. Due to the change in shape, the force point moves from a position relatively close to the support plate 1110 to a position relatively distant from the support plate 1110, and the force point applies a force in the driving direction to the action point. The driven body 1104 is driven in the driving direction by the force applied by the force point to the action point.
　リンク部材１１３７は、細長形状物であり、側面１１２８に沿って延在する。板状ＳＭＡアクチュエーター１１０７は、細長形状物であり、側面１１３１に沿って延在する。側面１１３１は、側面１１２８の対面であり、側面１１２８と１８０°異なる方向を向く。このことは、四角形状物１１２４の側面に沿う空間を有効活用することに寄与し、レンズユニット１１００を小型化することに寄与する。 The link member 1137 is an elongated object, and extends along the side surface 1128. The plate-like SMA actuator 1107 is an elongated shape and extends along the side surface 1131. The side surface 1131 is a facing surface of the side surface 1128 and faces a direction different from the side surface 1128 by 180 °. This contributes to effective use of the space along the side surface of the rectangular object 1124 and contributes to downsizing the lens unit 1100.
　支持棒１１１１は、駆動方向から見て側面１１３０に対向する。支持棒１１１１は、側面１１２８及び側面１１３１と垂直をなす方向について被駆動体１１０４が存在する範囲からはみ出さない。このことは、側面１１２８及び側面１１３１と垂直をなす方向についてレンズユニット１１００を小型化することに寄与する。支持棒１１１１が駆動方向から見て側面１１２９に対向する場合もこの利点は維持される。 The support bar 1111 faces the side surface 1130 when viewed from the driving direction. The support bar 1111 does not protrude from the range where the driven body 1104 exists in the direction perpendicular to the side surface 1128 and the side surface 1131. This contributes to reducing the size of the lens unit 1100 in the direction perpendicular to the side surface 1128 and the side surface 1131. This advantage is maintained even when the support bar 1111 faces the side surface 1129 when viewed from the driving direction.
　支持棒１１１３は、側面１１３０と側面１１３１とを隔てる辺に沿って設けられる。板状ＳＭＡアクチュエーター１１０７は、支持棒１１１３に結合される結合点を有する。 The support rod 1113 is provided along the side separating the side surface 1130 and the side surface 1131. The plate-like SMA actuator 1107 has a connection point that is connected to the support rod 1113.
　側面１１２９及び側面１１３０は、側面１１２８と９０°異なる方向を向く。作用点は、側面１１３１に設けられる。側面１１２９は、側面１１２９の対面である側面１１３０より支持部１１３９に近い。また、側面１１２９は、側面１１３０よりも作用点に近い。すなわち、支持部１１３９及び作用点は、側面１１２９寄りにある。このことは、被駆動体１１０４の姿勢を崩すモーメントを発生しにくくすることに寄与し、被駆動体１１０４の姿勢を維持しやすくすることに寄与する。 The side surface 1129 and the side surface 1130 face a direction different from the side surface 1128 by 90 °. The action point is provided on the side surface 1131. The side surface 1129 is closer to the support portion 1139 than the side surface 1130 that faces the side surface 1129. Further, the side surface 1129 is closer to the action point than the side surface 1130. That is, the support portion 1139 and the action point are closer to the side surface 1129. This contributes to making it difficult to generate a moment that breaks the attitude of the driven body 1104, and contributes to easily maintaining the attitude of the driven body 1104.
　支持棒１１１１は、駆動方向から見て側面１１３０に対向する。板状ＳＭＡアクチュエーター１１０７は、側面１１３１に沿って延在するが、側面１１３０を越えて側面１１３１に対応する範囲からはみ出す。支持棒１１１１及び板状ＳＭＡアクチュエーター１１０７のうちはみ出した部分は、側面１１３０に沿う空間の近傍に集中して設置される。側面１１３０の対面である側面１１２９は、開放される。このことは、側面１１３０と垂直をなす方向についてレンズユニット１１００を小型化することに寄与する。 The support bar 1111 faces the side surface 1130 when viewed from the driving direction. The plate-like SMA actuator 1107 extends along the side surface 1131, but protrudes from the range corresponding to the side surface 1131 beyond the side surface 1130. The protruding portions of the support bar 1111 and the plate-like SMA actuator 1107 are concentrated and installed near the space along the side surface 1130. The side surface 1129 that is the opposite surface of the side surface 1130 is opened. This contributes to reducing the size of the lens unit 1100 in the direction perpendicular to the side surface 1130.
　第１２実施形態
　第１２実施形態は、レンズユニットに関する。以下では、第１２実施形態のレンズユニットが第１実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第１実施形態についての説明が第１２実施形態に援用される。第１実施形態以外の実施形態についての説明が第１２実施形態に援用されてもよい。 Twelfth Embodiment A twelfth embodiment relates to a lens unit. Below, the point from which the lens unit of 12th Embodiment differs from the lens unit of 1st Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 1st Embodiment is used for 12th Embodiment. The description about embodiments other than the first embodiment may be incorporated into the twelfth embodiment.
　図２５の模式図は、第１２実施形態のレンズユニットの上面図である。 25 is a top view of the lens unit of the twelfth embodiment.
　図２５に示されるように、第１２実施形態のレンズユニット１２００は、支持体１２０３、被駆動体１２０４、リンク機構１２０５及び板状ＳＭＡアクチュエーター１２０７を備える。 As shown in FIG. 25, the lens unit 1200 of the twelfth embodiment includes a support 1203, a driven body 1204, a link mechanism 1205, and a plate-like SMA actuator 1207.
　支持体１２０３は、支持板１２１０、支持棒１２１１及び支持棒１２１３を備える。 The support 1203 includes a support plate 1210, a support bar 1211, and a support bar 1213.
　被駆動体１２０４は、マルチアレイレンズ１２１５及びレンズホルダー１２１６を備える。 The driven body 1204 includes a multi-array lens 1215 and a lens holder 1216.
　レンズホルダー１２１６は、四角形状物１２２４及び突起１２２５を備える。四角形状物１２２４は、側面１２２８、側面１２２９、側面１２３０及び側面１２３１を有する。 The lens holder 1216 includes a rectangular object 1224 and a protrusion 1225. The quadrangular object 1224 has a side surface 1228, a side surface 1229, a side surface 1230, and a side surface 1231.
　リンク機構１２０５は、２個の単位機構１２３４を備える（図２５には、２個の単位機構１２３４のうちの１個のみが図示されている。）。 The link mechanism 1205 includes two unit mechanisms 1234 (FIG. 25 shows only one of the two unit mechanisms 1234).
　２個の単位機構１２３４の各々は、リンク部材１２３７、支持部１２３８及び支持部１２３９を備える。リンク部材１２３７は、平棒状部１２４２、被支持部１２４３及び被支持部１２４４を備える。 Each of the two unit mechanisms 1234 includes a link member 1237, a support portion 1238, and a support portion 1239. The link member 1237 includes a flat bar portion 1242, a supported portion 1243, and a supported portion 1244.
　支持部１２３８は、支持棒１２１１に結合され、被支持部１２４３を第１の回転軸の周りに回転可能に支持する。支持部１２３９は、側面１２２８に結合され、被支持部１２４４を第２の回転軸の周りに回転可能に支持する。 The support portion 1238 is coupled to the support rod 1211 and supports the supported portion 1243 so as to be rotatable around the first rotation axis. The support portion 1239 is coupled to the side surface 1228 and supports the supported portion 1244 so as to be rotatable around the second rotation axis.
　被駆動体１２０４は、１個のリンク機構１２０５により駆動方向へ案内される。このことは、レンズユニット１２００の小型化に寄与する。 The driven body 1204 is guided in the driving direction by one link mechanism 1205. This contributes to downsizing of the lens unit 1200.
　突起１２２５は、力が加えられる作用点を有する。板状ＳＭＡアクチュエーター１２０７は、力を加える力点を有する。 The protrusion 1225 has an action point where a force is applied. The plate-like SMA actuator 1207 has a force point for applying a force.
　板状ＳＭＡアクチュエーター１２０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター１２０７の形状が平坦な形状から湾曲した形状に変化する。形状の変化により、支持板１２１０に相対的に近い位置から支持板１２１０から相対的に遠い位置へ力点が移動し、力点が作用点に駆動方向へ向かう力を加える。力点が作用点に加える力により、被駆動体１２０４が駆動方向に駆動される。 When the temperature of the plate-like SMA actuator 1207 rises, the shape of the plate-like SMA actuator 1207 changes from a flat shape to a curved shape. Due to the change in shape, the force point moves from a position relatively close to the support plate 1210 to a position relatively distant from the support plate 1210, and the force point applies a force in the driving direction to the action point. The driven member 1204 is driven in the driving direction by the force applied by the force point to the action point.
　リンク部材１２３７は、細長形状物であり、側面１２２８に沿って延在する。板状ＳＭＡアクチュエーター１２０７は、細長形状物であり、側面１２３１に沿って延在する。側面１２３１は、側面１２２８の対面であり、側面１２２８と１８０°異なる方向を向く。このことは、四角形状物１２２４の側面に沿う空間を有効活用することに寄与し、レンズユニット１２００を小型化することに寄与する。 The link member 1237 is an elongated object and extends along the side surface 1228. The plate-like SMA actuator 1207 is an elongated object and extends along the side surface 1231. The side surface 1231 is a facing surface of the side surface 1228 and faces a direction different from the side surface 1228 by 180 °. This contributes to effective use of the space along the side surface of the rectangular object 1224, and contributes to downsizing the lens unit 1200.
　支持棒１２１１は、駆動方向から見て側面１２３０に対向する。支持棒１２１１は、側面１２２８及び側面１２３１と垂直をなす方向について被駆動体１２０４が存在する範囲からはみ出さない。このことは、側面１２２８及び側面１２３１と垂直をなす方向についてレンズユニット１２００を小型化することに寄与する。 The support rod 1211 faces the side surface 1230 when viewed from the driving direction. The support rod 1211 does not protrude from the range where the driven body 1204 exists in the direction perpendicular to the side surface 1228 and the side surface 1231. This contributes to downsizing the lens unit 1200 in the direction perpendicular to the side surface 1228 and the side surface 1231.
　支持棒１２１３は、側面１２２９と側面１２３１とを隔てる辺に沿って設けられる。板状ＳＭＡアクチュエーター１２０７は、支持棒１２１３に結合される結合点を有する。 The support rod 1213 is provided along the side separating the side surface 1229 and the side surface 1231. The plate-like SMA actuator 1207 has a coupling point coupled to the support rod 1213.
　側面１２２９及び側面１２３０は、側面１２２８と９０°異なる方向を向く。作用点は、側面１２３１に設けられる。側面１２２９は、側面１２２９の対面である側面１２３０より支持部１２３９に近い。また、側面１２２９は、側面１２３０よりも作用点から遠い。すなわち、支持部１２３９が側面１２２９寄りにあるのに対して作用点は側面１２３０寄りにある。 The side surface 1229 and the side surface 1230 face a direction different from the side surface 1228 by 90 °. The action point is provided on the side surface 1231. The side surface 1229 is closer to the support portion 1239 than the side surface 1230 that faces the side surface 1229. Further, the side surface 1229 is farther from the action point than the side surface 1230. That is, while the support portion 1239 is closer to the side surface 1229, the action point is closer to the side surface 1230.
　支持棒１２１１は、駆動方向から見て側面１２３０に対向する。板状ＳＭＡアクチュエーター１２０７は、側面１２３１に沿って延在する。 The support rod 1211 faces the side surface 1230 when viewed from the driving direction. The plate-like SMA actuator 1207 extends along the side surface 1231.
　第１３実施形態
　第１３実施形態は、レンズユニットに関する。以下では、第１３実施形態のレンズユニットが第６実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第６実施形態についての説明が第１３実施形態に援用される。第６実施形態以外の実施形態についての説明が第１３実施形態に援用されてもよい。 Thirteenth Embodiment A thirteenth embodiment relates to a lens unit. Below, the point from which the lens unit of 13th Embodiment differs from the lens unit of 6th Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 6th Embodiment is used for 13th Embodiment. Descriptions about embodiments other than the sixth embodiment may be incorporated into the thirteenth embodiment.
　図２６の模式図は、第１３実施形態のレンズユニットの上面図である。 The schematic diagram of FIG. 26 is a top view of the lens unit of the thirteenth embodiment.
　図２６に示されるように、第１３実施形態のレンズユニット１３００は、支持体１３０３、被駆動体１３０４、２個の平行バネ１３０５（図２６には、２個の平行バネ１３０５のうちの１個のみが図示されている。）及び板状ＳＭＡアクチュエーター１３０７を備える。 As shown in FIG. 26, the lens unit 1300 of the thirteenth embodiment includes a support body 1303, a driven body 1304, two parallel springs 1305 (in FIG. 26, one of the two parallel springs 1305 is shown. Only a plate-like SMA actuator 1307 is shown.
　支持体１３０３は、支持板１３１０、支持棒１３１１及び支持棒１３１３を備える。支持棒１３１１は、被結合部１３１５を備える。支持棒１３１３は、被結合部１３１９を備える。 The support body 1303 includes a support plate 1310, a support bar 1311, and a support bar 1313. The support bar 1311 includes a coupled portion 1315. The support bar 1313 includes a coupled portion 1319.
　被駆動体１３０４は、マルチアレイレンズ１３２１及びレンズホルダー１３２２を備える。 The driven body 1304 includes a multi-array lens 1321 and a lens holder 1322.
　レンズホルダー１３２２は、四角形状物１３３１、突起１３３２及び被結合部１３３３を備える。四角形状物１３３１は、側面１３３７、側面１３３８、側面１３３９及び側面１３４０を有する。 The lens holder 1322 includes a rectangular object 1331, a protrusion 1332, and a coupled portion 1333. The rectangular object 1331 has a side surface 1337, a side surface 1338, a side surface 1339, and a side surface 1340.
　２個の平行バネ１３０５の各々は、板バネ１３４３を備える。 Each of the two parallel springs 1305 includes a leaf spring 1343.
　板バネ１３４３は、平板状部１３４７、結合部１３４８及び結合部１３４９を備える。 The leaf spring 1343 includes a flat plate-like portion 1347, a coupling portion 1348, and a coupling portion 1349.
　結合部１３４８は、被結合部１３１５に結合される。結合部１３４９は、被結合部１３３に結合される。 The coupling unit 1348 is coupled to the coupled unit 1315. The coupling part 1349 is coupled to the coupled part 133.
　板バネ１３４３の弾性変形により、結合部１３４９は駆動方向に移動可能である。 Due to the elastic deformation of the leaf spring 1343, the coupling portion 1349 can move in the driving direction.
　被駆動体１３０４は、板バネ１３４３により駆動方向へ案内される。このことは、被駆動体１３０４の姿勢を維持することを容易にする。 The driven body 1304 is guided in the driving direction by a leaf spring 1343. This facilitates maintaining the posture of the driven body 1304.
　突起１３３２は、力が加えられる作用点を有する。突起１３３２は、側面１３４０に設けられる。板状ＳＭＡアクチュエーター１３０７は、力を加える力点を有する。力点は、作用点に当たる。 The protrusion 1332 has an action point where force is applied. The protrusion 1332 is provided on the side surface 1340. The plate-like SMA actuator 1307 has a force point for applying a force. The force point is the point of action.
　板状ＳＭＡアクチュエーター１３０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター１３０７の形状が平坦な形状から湾曲した形状に変化する。形状の変化により、支持板１３１０に相対的に近い位置から支持板１３１０から相対的に遠い位置へ力点が移動し、力点が作用点に駆動方向へ向かう力を加える。力点が作用点に加える力により、被駆動体１３０４が駆動方向に駆動される。 When the temperature of the plate-like SMA actuator 1307 rises, the shape of the plate-like SMA actuator 1307 changes from a flat shape to a curved shape. Due to the change in shape, the power point moves from a position relatively close to the support plate 1310 to a position relatively far from the support plate 1310, and the force point applies a force toward the driving point in the driving direction. The driven body 1304 is driven in the driving direction by the force applied by the force point to the action point.
　板バネ１３４３は、細長形状物であり、側面１３３７に沿って延在する。板状ＳＭＡアクチュエーター１３０７は、細長形状物であり、側面１３４０に沿って延在する。側面１３４０は、側面１３３７の対面であり、側面１３３７と１８０°異なる方向を向く。このことは、四角形状物１３３１の側面に沿う空間を有効活用することに寄与し、レンズユニット１３００を小型化することに寄与する。 The leaf spring 1343 is an elongated object and extends along the side surface 1337. The plate-like SMA actuator 1307 is an elongated shape and extends along the side surface 1340. The side surface 1340 is the opposite surface of the side surface 1337 and faces a direction different from the side surface 1337 by 180 °. This contributes to effective use of the space along the side surface of the rectangular object 1331 and contributes to downsizing the lens unit 1300.
　支持棒１３１１は、駆動方向から見て側面１３３９に対向する。支持棒１３１１は、側面１３３７及び側面１３４０と垂直をなす方向について被駆動体１３０４が存在する範囲からはみ出さない。このことは、側面１３３７及び側面１３４０と垂直をなす方向についてレンズユニット１３００を小型化することに寄与する。支持棒１３１１が駆動方向から見て側面１３３８に対向する場合もこの利点は維持される。 The support bar 1311 faces the side surface 1339 when viewed from the driving direction. The support bar 1311 does not protrude from the range where the driven body 1304 exists in the direction perpendicular to the side surface 1337 and the side surface 1340. This contributes to reducing the size of the lens unit 1300 in the direction perpendicular to the side surface 1337 and the side surface 1340. This advantage is maintained even when the support bar 1311 faces the side surface 1338 when viewed from the driving direction.
　支持棒１３１３は、側面１３３９と側面１３４０とを隔てる辺に沿って設けられる。板状ＳＭＡアクチュエーター１３０７は、支持棒１３１３に結合される結合点を有する。 The support bar 1313 is provided along the side separating the side surface 1339 and the side surface 1340. The plate-like SMA actuator 1307 has a coupling point coupled to the support bar 1313.
　側面１３３８及び側面１３３９は、側面１３３７と９０°異なる方向を向く。作用点は、側面１３４０に設けられる。側面１３３８は、側面１３３８の対面である側面１３３９より被結合部１３３３に近い。また、側面１３３８は、側面１３３９よりも作用点に近い。すなわち、被結合部１３３３及び作用点は、側面１３３８寄りにある。このことは、被駆動体１３０４の姿勢を崩すモーメントを発生しにくくすることに寄与し、被駆動体１３０４の姿勢を維持しやすくすることに寄与する。 The side surface 1338 and the side surface 1339 are oriented in a direction different from the side surface 1337 by 90 °. The action point is provided on the side surface 1340. The side surface 1338 is closer to the coupled portion 1333 than the side surface 1339 that is the opposite surface of the side surface 1338. Also, the side surface 1338 is closer to the point of action than the side surface 1339. In other words, the coupled portion 1333 and the action point are closer to the side surface 1338. This contributes to making it difficult to generate a moment that breaks the posture of the driven body 1304 and to help maintain the posture of the driven body 1304.
　支持棒１３１１は、駆動方向から見て側面１３３９に対向する。板状ＳＭＡアクチュエーター１３０７は、側面１３４０に沿って延在するが、側面１３３９を越えて側面１３４０に対応する範囲からはみ出す。支持棒１３１１及び板状ＳＭＡアクチュエーター１３０７のうちはみ出した部分は、側面１３３９に沿う空間の近傍に集中して設置される。側面１３３９の対面である側面１３３８は、開放される。このことは、側面１３３９と垂直をなす方向についてレンズユニット１３００を小型化することに寄与する。 The support bar 1311 faces the side surface 1339 when viewed from the driving direction. The plate-like SMA actuator 1307 extends along the side surface 1340, but protrudes from the range corresponding to the side surface 1340 beyond the side surface 1339. The protruding portions of the support bar 1311 and the plate-like SMA actuator 1307 are concentrated and installed near the space along the side surface 1339. A side surface 1338 that is opposite to the side surface 1339 is opened. This contributes to reducing the size of the lens unit 1300 in the direction perpendicular to the side surface 1339.
　第７実施形態の支持棒７１１及び支持棒７１２と同様に、支持棒１３１１が駆動方向から見て側面１３３７に対向してもよい。この場合は、支持棒１３１１は、側面１３３８及び側面１３３９と垂直をなす方向について被駆動体１３０４が存在する範囲からはみ出さない。このことは、側面１３３８及び側面１３３９と垂直をなす方向についてレンズユニット１３００を小型化することに寄与する。 Like the support bar 711 and the support bar 712 of the seventh embodiment, the support bar 1311 may face the side surface 1337 when viewed from the driving direction. In this case, the support bar 1311 does not protrude from the range where the driven body 1304 exists in the direction perpendicular to the side surface 1338 and the side surface 1339. This contributes to reducing the size of the lens unit 1300 in the direction perpendicular to the side surface 1338 and the side surface 1339.
　第１４実施形態
　第１４実施形態は、レンズユニットに関する。以下では、第１４実施形態のレンズユニットが第６実施形態のレンズユニットと異なる点が主に説明される。説明されない点については、第６実施形態についての説明が第１４実施形態に援用される。第６実施形態以外の実施形態についての説明が第１４実施形態に援用されてもよい。 Fourteenth Embodiment A fourteenth embodiment relates to a lens unit. Below, the point from which the lens unit of 14th Embodiment differs from the lens unit of 6th Embodiment is mainly demonstrated. About the point which is not demonstrated, description about 6th Embodiment is used for 14th Embodiment. Descriptions about embodiments other than the sixth embodiment may be incorporated into the fourteenth embodiment.
　図２７の模式図は、第１４実施形態のレンズユニットの上面図である。 27 is a top view of the lens unit of the fourteenth embodiment.
　図２７に示されるように、第１４実施形態のレンズユニット１４００は、支持体１４０３、被駆動体１４０４、２個の平行バネ１４０５（図２７には、２個の平行バネ１４０５のうちの１個のみが図示されている。）及び板状ＳＭＡアクチュエーター１４０７を備える。 As shown in FIG. 27, the lens unit 1400 of the fourteenth embodiment includes a support 1403, a driven body 1404, two parallel springs 1405 (in FIG. 27, one of the two parallel springs 1405). Only a plate-like SMA actuator 1407 is provided.
　支持体１４０３は、支持板１４１０、支持棒１４１１及び支持棒１４１３を備える。支持棒１４１１は、被結合部１４１５を備える。支持棒１４１３は、被結合部１４１９を備える。 The support body 1403 includes a support plate 1410, a support bar 1411, and a support bar 1413. The support bar 1411 includes a coupled portion 1415. The support bar 1413 includes a coupled portion 1419.
　被駆動体１４０４は、マルチアレイレンズ１４２１及びレンズホルダー１４２２を備える。 The driven body 1404 includes a multi-array lens 1421 and a lens holder 1422.
　レンズホルダー１４２２は、四角形状物１４３１、突起１４３２及び被結合部１４３３を備える。四角形状物１４３１は、側面１４３７、側面１４３８、側面１４３９及び側面１４４０を有する。 The lens holder 1422 includes a rectangular object 1431, a protrusion 1432, and a coupled portion 1433. The quadrangular object 1431 has a side surface 1437, a side surface 1438, a side surface 1439, and a side surface 1440.
　２個の平行バネ１４０５の各々は、板バネ１４４３を備える。 Each of the two parallel springs 1405 includes a leaf spring 1443.
　板バネ１４４３は、平板状部１４４７、結合部１４４８及び結合部１４４９を備える。 The plate spring 1443 includes a flat plate-like portion 1447, a coupling portion 1448, and a coupling portion 1449.
　結合部１４４８は、被結合部１４１５に結合される。結合部１４４９は、被結合部１４３３に結合される。 The coupling unit 1448 is coupled to the coupled unit 1415. The coupling portion 1449 is coupled to the coupled portion 1433.
　板バネ１４４３の弾性変形により、結合部１４４９は駆動方向に移動可能である。 By the elastic deformation of the leaf spring 1443, the coupling portion 1449 can move in the driving direction.
　被駆動体１４０４は、板バネ１４４３により駆動方向へ案内される。このことは、被駆動体１４０４の姿勢を維持することを容易にする。 The driven body 1404 is guided in the driving direction by a leaf spring 1443. This facilitates maintaining the attitude of the driven body 1404.
　突起１４３２は、力が加えられる作用点を有する。突起１４３２は、側面１４４０に設けられる。板状ＳＭＡアクチュエーター１４０７は、力を加える力点を有する。力点は、作用点に当たる。 The protrusion 1432 has an action point where force is applied. The protrusion 1432 is provided on the side surface 1440. The plate-like SMA actuator 1407 has a force point for applying a force. The force point is the point of action.
　板状ＳＭＡアクチュエーター１４０７の温度が上昇した場合は、板状ＳＭＡアクチュエーター１４０７の形状が平坦な形状から湾曲した形状に変化する。形状の変化により、支持板１４１０に相対的に近い位置から支持板１４１０から相対的に遠い位置へ力点が移動し、力点が作用点に駆動方向へ向かう力を加える。力点が作用点に加える力により、被駆動体１４０４が駆動方向に駆動される。 When the temperature of the plate-like SMA actuator 1407 rises, the shape of the plate-like SMA actuator 1407 changes from a flat shape to a curved shape. Due to the change in shape, the force point moves from a position relatively close to the support plate 1410 to a position relatively distant from the support plate 1410, and the force point applies a force in the driving direction to the action point. The driven member 1404 is driven in the driving direction by the force applied by the force point to the action point.
　板バネ１４４３は、細長形状物であり、側面１４３７に沿って延在する。板状ＳＭＡアクチュエーター１４０７は、細長形状物であり、側面１４４０に沿って延在する。側面１４４０は、側面１４３７の対面であり、側面１４３７と１８０°異なる方向を向く。このことは、四角形状物１４３１の側面に沿う空間を有効活用することに寄与し、レンズユニット１４００を小型化することに寄与する。 The leaf spring 1443 is an elongated shape and extends along the side surface 1437. The plate-like SMA actuator 1407 has an elongated shape and extends along the side surface 1440. The side surface 1440 is a facing surface of the side surface 1437 and faces a direction different from the side surface 1437 by 180 °. This contributes to effective utilization of the space along the side surface of the rectangular object 1431 and contributes to downsizing the lens unit 1400.
　支持棒１４１１及び支持棒１４１３は、駆動方向から見て側面１４３９に対向する。支持棒１４１１及び支持棒１４１３は、側面１４３７及び側面１４４０と垂直をなす方向について被駆動体１４０４が存在する範囲からはみ出さない。このことは、側面１４３７及び側面１４４０と垂直をなす方向についてレンズユニット１４００を小型化することに寄与する。支持棒１４１１及び支持棒１４１３の両方又は片方が駆動方向から見て側面１４３８に対向する場合もこの利点は維持される。 The support bar 1411 and the support bar 1413 are opposed to the side surface 1439 when viewed from the driving direction. The support bar 1411 and the support bar 1413 do not protrude from the range where the driven body 1404 exists in the direction perpendicular to the side surface 1437 and the side surface 1440. This contributes to reducing the size of the lens unit 1400 in the direction perpendicular to the side surface 1437 and the side surface 1440. This advantage is maintained even when both or one of the support bar 1411 and the support bar 1413 faces the side surface 1438 when viewed in the driving direction.
　側面１４３８及び側面１４３９は、側面１４３７と９０°異なる方向を向く。作用点は、側面１４４０に設けられる。側面１４３９は、側面１４３９の対面である側面１４３８より被結合部１４３３から遠い。また、側面１４３９は、側面１４３８よりも作用点に近い。すなわち、被結合部１４３３が側面１４３８寄りにあるのに対して作用点は側面１４３９寄りにある。被駆動体１４０４が１個の板バネ１４４３に片持ちされる場合は、被駆動体１４０４のチルトが発生しやすいが、被結合部１４３３が側面１４３８寄りにあり作用点が側面１４３９寄りにある場合は当該チルトが抑制される。 The side surface 1438 and the side surface 1439 are oriented in a direction different from the side surface 1437 by 90 °. The action point is provided on the side surface 1440. The side surface 1439 is farther from the coupled portion 1433 than the side surface 1438 which is the opposite surface of the side surface 1439. Further, the side surface 1439 is closer to the action point than the side surface 1438. That is, the point of action is closer to the side surface 1439 while the coupled portion 1433 is closer to the side surface 1438. When the driven body 1404 is cantilevered by one leaf spring 1443, the driven body 1404 is likely to tilt, but the coupled portion 1433 is closer to the side surface 1438 and the action point is closer to the side surface 1439. The tilt is suppressed.
　支持棒１４１１は、駆動方向から見て側面１４３９に対向する。板状ＳＭＡアクチュエーター１４０７は、側面１４４０に沿って延在するが、側面１４３９を越えて側面１４４０に対応する範囲からはみ出す。支持棒１４１１及び板状ＳＭＡアクチュエーター１４０７のうちはみ出した部分は、側面１４３９に沿う空間の近傍に集中して設置される。側面１４３９の対面である側面１４３８は、開放される。このことは、側面１４３９と垂直をなす方向についてレンズユニット１４００を小型化することに寄与する。 The support rod 1411 faces the side surface 1439 when viewed from the driving direction. The plate-like SMA actuator 1407 extends along the side surface 1440 but extends beyond the side surface 1439 and corresponds to the side surface 1440. The protruding portions of the support bar 1411 and the plate-like SMA actuator 1407 are concentrated in the vicinity of the space along the side surface 1439. A side surface 1438 that is opposite to the side surface 1439 is opened. This contributes to reducing the size of the lens unit 1400 in the direction perpendicular to the side surface 1439.
　第１５実施形態
　第１５実施形態は、撮像装置に関する。 Fifteenth Embodiment A fifteenth embodiment relates to an imaging apparatus.
　図２８の模式図は、第１５実施形態の撮像装置の側面図である。 28 is a side view of the imaging apparatus of the fifteenth embodiment.
　図２８に示されるように、第１５実施形態の撮像装置１５００は、第１実施形態のレンズユニット１００及び撮像素子１５０３を備える。第１実施形態のレンズユニット１００が第１実施形態以外の実施形態のレンズユニットに置き換えられてもよい。撮像素子１５０３は、レンズユニット１００により結像された像を撮像する。撮像素子１５０３が出力する撮像データは、ステレオ画像、三次元画像等の生成のために使用される。撮像装置１５００が備える撮像素子の数が増やされてもよい。撮像装置１５００においては、１６個のレンズ１１８により結像された像が１個の撮像素子１５０３により撮像される。１６個のレンズ１１８により結像された像が２個以上の撮像素子により撮像されてもよい。２個以上の撮像素子の各々は、１個の像を撮像してもよいし、２個以上の像を撮像してもよい。 As shown in FIG. 28, the imaging apparatus 1500 according to the fifteenth embodiment includes the lens unit 100 and the imaging element 1503 according to the first embodiment. The lens unit 100 of the first embodiment may be replaced with a lens unit of an embodiment other than the first embodiment. The image sensor 1503 captures an image formed by the lens unit 100. The imaging data output from the imaging element 1503 is used for generating a stereo image, a three-dimensional image, and the like. The number of image sensors included in the imaging apparatus 1500 may be increased. In the imaging device 1500, an image formed by 16 lenses 118 is captured by one imaging element 1503. Images formed by the 16 lenses 118 may be captured by two or more image sensors. Each of the two or more imaging elements may capture one image, or may capture two or more images.
　本発明は詳細に示され記述されたが、上記の記述は全ての局面において例示であって限定的ではない。したがって、本発明の範囲からはずれることなく無数の修正及び変形が案出されうると解される。 Although the present invention has been shown and described in detail, the above description is illustrative in all aspects and not limiting. Accordingly, it is understood that numerous modifications and variations can be devised without departing from the scope of the present invention.
　１００，２００，３００，４００，５００，６００，７００，８００，９００，１０００，１１００，１２００，１３００，１４００　レンズユニット
　１０３，２０３，３０３，４０３，５０３，６０３，７０３，８０３，９０３，１００３，１１０３，１２０３，１３０３，１４０３　支持体
　１０４，２０４，３０４，４０４，５０４，６０４，７０４，８０４，９０４，１００５，１１０４，１２０４，１３０４，１４０４　被駆動体
　１０５，１０６，２０５，２０６，３０５，３０６，４０５，５０５，５０６，１００６，１１０５　リンク機構
　６０５，７０５，８０５，９０５，１３０５，１４０５　平行バネ
　１０７，２０７，３０７，５０７，６０７，７０７，８０７，９０７，１００７，１１０７，１２０７，１３０７，１４０７　板状ＳＭＡアクチュエーター
　４０７　線状ＳＭＡアクチュエーター 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400 Lens unit 103, 203, 303, 403, 503, 603, 703, 803, 903, 1003, 1103 , 1203, 1303, 1403 Support 104, 204, 304, 404, 504, 604, 704, 804, 904, 1005, 1104, 1204, 1304, 1404 Driven body 105, 106, 205, 206, 305, 306, 405, 505, 506, 1006, 1105 Link mechanism 605, 705, 805, 905, 1305, 1405 Parallel spring 107, 207, 307, 507, 607, 707, 807, 907, 1007, 1107, 1207, 1307, 1407 Jo SMA actuator 407 linear SMA actuator

Claims (39)

  1. 　支持体と、
    　力が加えられる作用点を有し、前記力により駆動方向に駆動され、前記駆動方向から見て四角形状である四角形状物を備え、前記四角形状物が第１の側面、第２の側面、第３の側面及び第４の側面を有する被駆動体と、
    　２個以上の単位機構を備え、前記２個以上の単位機構の各々がリンク部材、第１の支持部及び第２の支持部を備え、前記リンク部材が第１の被支持部及び第２の被支持部を備え前記第１の側面に沿って延在し、前記第１の支持部が前記支持体に結合され前記第１の被支持部を第１の回転軸の周りに回転可能に支持し、前記第２の支持部が前記第１の側面に結合され前記第２の被支持部を第２の回転軸の周りに回転可能に支持し、前記第１の回転軸が前記駆動方向と垂直をなし、前記第２の回転軸が前記第１の回転軸と平行をなすリンク機構と、
    　前記力を前記作用点に加える力点を有し、前記第２の側面に沿って延在するアクチュエーターと、
    を備える
    駆動ユニット。     A support;
    An action point to which a force is applied, driven in the driving direction by the force, and provided with a quadrangular object that is quadrangular when viewed from the driving direction, the quadrangular object being a first side surface, a second side surface A driven body having a third side surface and a fourth side surface;
    Two or more unit mechanisms are provided, each of the two or more unit mechanisms includes a link member, a first support portion, and a second support portion, and the link member includes a first supported portion and a second supported portion. A supported portion is provided and extends along the first side surface, and the first supported portion is coupled to the support body, and the first supported portion is rotatably supported around a first rotation axis. The second support portion is coupled to the first side surface and supports the second supported portion so as to be rotatable around a second rotation shaft, and the first rotation shaft is connected to the drive direction. A link mechanism that is vertical and in which the second rotation axis is parallel to the first rotation axis;
    An actuator having a force point for applying the force to the point of action and extending along the second side;
    A drive unit comprising:
  2. 　前記第２の側面が前記第１の側面と９０°異なる方向を向く
    請求項１の駆動ユニット。     The drive unit according to claim 1, wherein the second side surface faces a direction different from the first side surface by 90 °.
  3. 　前記第３の側面が前記第２の側面の対面であり、
    　前記第２の側面が前記第３の側面より前記第２の支持部に近く、
    　前記作用点が前記第２の側面に設けられる
    請求項２の駆動ユニット。     The third side is the opposite of the second side;
    The second side surface is closer to the second support portion than the third side surface;
    The drive unit according to claim 2, wherein the action point is provided on the second side surface.
  4. 　前記第３の側面が前記第２の側面の対面であり、
    　前記第２の側面が前記第３の側面より前記第２の支持部から遠く、
    　前記作用点が前記第２の側面に設けられる
    請求項２の駆動ユニット。     The third side is the opposite of the second side;
    The second side surface is farther from the second support part than the third side surface;
    The drive unit according to claim 2, wherein the action point is provided on the second side surface.
  5. 　前記第３の側面が前記第２の側面の対面であり、
    　前記支持体は、
    　前記駆動方向から見て前記第２の側面又は前記第３の側面に対向する支持構造物
    を備え、
    　前記第１の支持部が前記支持構造物に結合される
    請求項２から４までのいずれかの駆動ユニット。     The third side is the opposite of the second side;
    The support is
    A support structure facing the second side surface or the third side surface when viewed from the driving direction;
    The drive unit according to any one of claims 2 to 4, wherein the first support portion is coupled to the support structure.
  6. 　前記支持構造物が前記第２の側面に対向する
    請求項５の駆動ユニット。     The drive unit according to claim 5, wherein the support structure faces the second side surface.
  7. 　前記２個以上の単位機構が第１の２個以上の単位機構であり、
    　前記リンク部材が第１のリンク部材であり、
    　前記リンク機構が第１のリンク機構であり、
    　前記駆動ユニットは、
    　第２の２個以上の単位機構を備え、前記第２の２個以上の単位機構の各々が第２のリンク部材、第３の支持部及び第４の支持部を備え、前記第２のリンク部材が第３の被支持部及び第４の被支持部を備え前記第２の側面、前記第３の側面及び前記第４の側面から選択された側面に沿って延在し、前記第３の支持部が前記支持体に結合され前記第３の被支持部を第３の回転軸の周りに回転可能に支持し、前記第４の支持部が前記選択された側面に結合され前記第４の被支持部を第４の回転軸の周りに回転可能に支持し、前記第３の回転軸が前記駆動方向と垂直をなし、前記第４の回転軸が前記第３の回転軸と平行をなす第２のリンク機構
    をさらに備える
    請求項２から６までのいずれかの駆動ユニット。     The two or more unit mechanisms are first two or more unit mechanisms;
    The link member is a first link member;
    The link mechanism is a first link mechanism;
    The drive unit is
    A second link unit, and each of the second two or more unit mechanisms includes a second link member, a third support unit, and a fourth support unit, and the second link. The member includes a third supported portion and a fourth supported portion, and extends along a side surface selected from the second side surface, the third side surface, and the fourth side surface, and A support portion is coupled to the support body to support the third supported portion so as to be rotatable around a third rotation axis, and the fourth support portion is coupled to the selected side surface to support the fourth side. A supported portion is supported so as to be rotatable around a fourth rotation axis, the third rotation axis is perpendicular to the driving direction, and the fourth rotation axis is parallel to the third rotation axis. The drive unit according to any one of claims 2 to 6, further comprising a second link mechanism.
  8. 　前記第４の側面が前記第１の側面の対面であり、
    　前記選択された側面が前記第４の側面である
    請求項７の駆動ユニット。     The fourth side is the opposite of the first side;
    The drive unit according to claim 7, wherein the selected side surface is the fourth side surface.
  9. 　前記第２の側面が前記第１の側面の対面である
    請求項１の駆動ユニット。     The drive unit according to claim 1, wherein the second side surface is a facing surface of the first side surface.
  10. 　前記第３の側面及び前記第４の側面が前記第１の側面と９０°異なる方向を向き、
    　前記第４の側面が前記第３の側面の対面であり、
    　前記作用点が前記第２の側面に設けられ、
    　前記第３の側面が前記第４の側面より前記作用点に近く、
    　前記第３の側面が前記第４の側面より前記第２の支持部に近い
    請求項９の駆動ユニット。     The third side surface and the fourth side surface are oriented in a direction different from the first side surface by 90 °,
    The fourth side is the opposite side of the third side;
    The point of action is provided on the second side;
    The third side surface is closer to the point of action than the fourth side surface;
    The drive unit according to claim 9, wherein the third side surface is closer to the second support portion than the fourth side surface.
  11. 　前記第３の側面及び前記第４の側面が前記第１の側面と９０°異なる方向を向き、
    　前記第４の側面が前記第３の側面の対面であり、
    　前記作用点が前記第２の側面に設けられ、
    　前記第３の側面が前記第４の側面より前記作用点に近く、
    　前記第３の側面が前記第４の側面より前記第２の支持部から遠い
    請求項９の駆動ユニット。     The third side surface and the fourth side surface are oriented in a direction different from the first side surface by 90 °,
    The fourth side is the opposite side of the third side;
    The point of action is provided on the second side;
    The third side surface is closer to the point of action than the fourth side surface;
    The drive unit according to claim 9, wherein the third side surface is farther from the second support portion than the fourth side surface.
  12. 　前記第３の側面及び前記第４の側面が前記第１の側面と９０°異なる方向を向き、
    　前記第４の側面が前記第３の側面の対面であり、
    　前記支持体は、
    　前記駆動方向から見て前記第３の側面又は前記第４の側面に対向する支持構造物
    を備え、
    　前記第１の支持部が前記支持構造物に結合される
    請求項９から１１までのいずれかの駆動ユニット。     The third side surface and the fourth side surface are oriented in a direction different from the first side surface by 90 °,
    The fourth side is the opposite side of the third side;
    The support is
    A support structure facing the third side surface or the fourth side surface when viewed from the driving direction;
    The drive unit according to any one of claims 9 to 11, wherein the first support portion is coupled to the support structure.
  13. 　前記支持構造物が前記第３の側面に対向し、
    　前記アクチュエーターが前記第３の側面を越えて前記第２の側面に対向する範囲からはみ出す
    請求項１２の駆動ユニット。     The support structure is opposite the third side surface;
    The drive unit according to claim 12, wherein the actuator protrudes from a range facing the second side surface beyond the third side surface.
  14. 　前記２個以上の単位機構が第１の２個以上の単位機構であり、
    　前記リンク部材が第１のリンク部材であり、
    　前記リンク機構が第１のリンク機構であり、
    　前記駆動ユニットは、
    　第２の２個以上の単位機構を備え、前記第２の２個以上の単位機構の各々が第２のリンク部材、第３の支持部及び第４の支持部を備え、前記第２のリンク部材が第３の被支持部及び第４の被支持部を備え前記第２の側面、前記第３の側面及び前記第４の側面から選択された側面に沿って延在し、前記第３の支持部が前記支持体に結合され前記第３の被支持部を第３の回転軸の周りに回転可能に支持し、前記第４の支持部が前記選択された側面に結合され前記第４の被支持部を第４の回転軸の周りに回転可能に支持し、前記第３の回転軸が前記駆動方向と垂直をなし、前記第４の回転軸が前記第３の回転軸と平行をなす第２のリンク機構
    をさらに備える
    請求項９から１３までのいずれかの駆動ユニット。     The two or more unit mechanisms are first two or more unit mechanisms;
    The link member is a first link member;
    The link mechanism is a first link mechanism;
    The drive unit is
    A second link unit, and each of the second two or more unit mechanisms includes a second link member, a third support unit, and a fourth support unit, and the second link. The member includes a third supported portion and a fourth supported portion, and extends along a side surface selected from the second side surface, the third side surface, and the fourth side surface, and A support portion is coupled to the support body to support the third supported portion so as to be rotatable around a third rotation axis, and the fourth support portion is coupled to the selected side surface to support the fourth side. A supported portion is supported so as to be rotatable around a fourth rotation axis, the third rotation axis is perpendicular to the driving direction, and the fourth rotation axis is parallel to the third rotation axis. The drive unit according to claim 9, further comprising a second link mechanism.
  15. 　前記選択された側面が前記第２の側面である
    請求項１４の駆動ユニット。     The drive unit of claim 14, wherein the selected side surface is the second side surface.
  16. 　第１の被結合部を備える支持体と、
    　力が加えられる作用点を有し、前記力により駆動方向に駆動され、前記駆動方向から見て四角形状である四角形状物を備え、前記四角形状物が第１の側面、第２の側面、第３の側面及び第４の側面を有し、第２の被結合部を備える被駆動体と、
    　第１の結合部及び第２の結合部を備え前記第１の側面に沿って延在するバネを備え、前記第１の結合部が前記第１の被結合部に結合され、前記第２の結合部が前記第２の被結合部に結合され前記バネの弾性変形により前記駆動方向に移動可能である平行バネと、
    　前記力を前記作用点に加える力点を有し、前記第２の側面に沿って延在するアクチュエーターと、
    を備える
    駆動ユニット。     A support including a first coupled portion;
    An action point to which a force is applied, driven in the driving direction by the force, and provided with a quadrangular object that is quadrangular when viewed from the driving direction, wherein the quadrilateral object has a first side surface, a second side surface, A driven body having a third side surface and a fourth side surface and having a second coupled portion;
    A spring having a first coupling portion and a second coupling portion and extending along the first side surface, wherein the first coupling portion is coupled to the first coupled portion; A parallel spring that is coupled to the second coupled portion and is movable in the driving direction by elastic deformation of the spring;
    An actuator having a force point for applying the force to the point of action and extending along the second side;
    A drive unit comprising:
  17. 　前記第２の側面が前記第１の側面と９０°異なる方向を向く
    請求項１６の駆動ユニット。     The drive unit according to claim 16, wherein the second side surface faces a direction different from the first side surface by 90 °.
  18. 　前記第３の側面が前記第２の側面の対面であり、
    　前記第２の側面が前記第３の側面より前記第２の被結合部に近く、
    　前記作用点が前記第２の側面に設けられる
    請求項１７の駆動ユニット。     The third side is the opposite of the second side;
    The second side surface is closer to the second coupled portion than the third side surface;
    The drive unit according to claim 17, wherein the action point is provided on the second side surface.
  19. 　前記第３の側面が前記第２の側面の対面であり、
    　前記第２の側面が前記第３の側面より前記第２の被結合部から遠く、
    　前記作用点が前記第２の側面に設けられる
    請求項１７の駆動ユニット。     The third side is the opposite of the second side;
    The second side surface is farther from the second coupled portion than the third side surface;
    The drive unit according to claim 17, wherein the action point is provided on the second side surface.
  20. 　前記第３の側面が前記第２の側面の対面であり、
    　前記支持体は、
    　前記駆動方向から見て前記第２の側面又は第３の側面に対向する支持構造物
    を備え、
    　前記第１の被結合部が前記支持構造物に設けられる
    請求項１７から１９までのいずれかの駆動ユニット。     The third side is the opposite of the second side;
    The support is
    A support structure facing the second side surface or the third side surface as seen from the driving direction;
    The drive unit according to claim 17, wherein the first coupled portion is provided in the support structure.
  21. 　前記支持構造物が前記第２の側面に対向する
    請求項２０の駆動ユニット。     21. The drive unit according to claim 20, wherein the support structure faces the second side surface.
  22. 　前記支持体は、
    　前記駆動方向から見て前記第１の側面に対向する支持構造物
    を備え、
    　前記第１の被結合部が前記支持構造物に設けられる
    請求項１７から１９までのいずれかの駆動ユニット。     The support is
    A support structure facing the first side surface when viewed from the driving direction;
    The drive unit according to claim 17, wherein the first coupled portion is provided in the support structure.
  23. 　前記支持体が第３の被結合部をさらに備え、
    　前記被駆動体が第４の被結合部をさらに備え、
    　前記バネが第１のバネであり、
    　前記平行バネが第２のバネをさらに備え、
    　前記第２のバネが第３の結合部及び第４の結合部をさらに備え、
    　前記第３の結合部が前記第３の被結合部に結合され、
    　前記第４の結合部が前記第４の被結合部に結合され前記第２のバネの弾性変形により前記駆動方向に移動可能であり、
    　前記第２のバネが前記第２の側面、前記第３の側面及び前記第４の側面から選択された側面に沿って延在する
    請求項１７から２２までのいずれかの駆動ユニット。     The support further includes a third coupled portion;
    The driven body further includes a fourth coupled portion;
    The spring is a first spring;
    The parallel spring further comprises a second spring;
    The second spring further comprises a third coupling portion and a fourth coupling portion;
    The third coupling portion is coupled to the third coupled portion;
    The fourth coupling portion is coupled to the fourth coupled portion and is movable in the driving direction by elastic deformation of the second spring;
    The drive unit according to any one of claims 17 to 22, wherein the second spring extends along a side surface selected from the second side surface, the third side surface, and the fourth side surface.
  24. 　前記第４の側面が前記第１の側面の対面であり、
    　前記選択された側面が前記第４の側面である
    請求項２３の駆動ユニット。     The fourth side is the opposite of the first side;
    24. The drive unit of claim 23, wherein the selected side is the fourth side.
  25. 　前記第２の側面が前記第１の側面の対面である
    請求項１６の駆動ユニット。     The drive unit according to claim 16, wherein the second side surface is a facing surface of the first side surface.
  26. 　前記第３の側面及び前記第４の側面が前記第１の側面と９０°異なる方向を向き、
    　前記第４の側面が前記第３の側面の対面であり、
    　前記作用点が前記第２の側面に設けられ、
    　前記第３の側面が前記第４の側面より前記作用点に近く、
    　前記第３の側面が前記第４の側面より前記第２の被結合部に近い
    請求項２５の駆動ユニット。     The third side surface and the fourth side surface are oriented in a direction different from the first side surface by 90 °,
    The fourth side is the opposite side of the third side;
    The point of action is provided on the second side;
    The third side surface is closer to the point of action than the fourth side surface;
    The drive unit according to claim 25, wherein the third side surface is closer to the second coupled portion than the fourth side surface.
  27. 　前記第３の側面及び前記第４の側面が前記第１の側面と９０°異なる方向を向き、
    　前記第４の側面が前記第３の側面の対面であり、
    　前記作用点が前記第２の側面に設けられ、
    　前記第３の側面が前記第４の側面より前記作用点に近く、
    　前記第３の側面が前記第４の側面より前記第２の被結合部から遠い
    請求項２５の駆動ユニット。     The third side surface and the fourth side surface are oriented in a direction different from the first side surface by 90 °,
    The fourth side is the opposite side of the third side;
    The point of action is provided on the second side;
    The third side surface is closer to the point of action than the fourth side surface;
    The driving unit according to claim 25, wherein the third side surface is farther from the second coupled portion than the fourth side surface.
  28. 　前記第３の側面及び前記第４の側面が前記第１の側面と９０°異なる方向を向き、
    　前記第４の側面が前記第３の側面の対面であり、
    　前記支持体は、
    　前記駆動方向から見て前記第３の側面又は前記第４の側面に対向する支持構造物
    を備え、
    　前記第１の被結合部が前記支持構造物に設けられる
    請求項２５から２７までのいずれかの駆動ユニット。     The third side surface and the fourth side surface are oriented in a direction different from the first side surface by 90 °,
    The fourth side is the opposite side of the third side;
    The support is
    A support structure facing the third side surface or the fourth side surface when viewed from the driving direction;
    The drive unit according to any one of claims 25 to 27, wherein the first coupled portion is provided in the support structure.
  29. 　前記支持構造物が前記第３の側面に対向し、
    　前記アクチュエーターが前記第３の側面を越えて前記第２の側面に対向する範囲からはみ出す
    請求項２８の駆動ユニット。     The support structure is opposite the third side surface;
    29. The drive unit according to claim 28, wherein the actuator protrudes from a range facing the second side surface beyond the third side surface.
  30. 　前記支持体は、
    　前記駆動方向から見て前記第１の側面に対向する支持構造物
    を備え、
    　前記第１の被結合部が前記支持構造物に設けられる
    請求項２５から２７までのいずれかの駆動ユニット。     The support is
    A support structure facing the first side surface when viewed from the driving direction;
    The drive unit according to any one of claims 25 to 27, wherein the first coupled portion is provided in the support structure.
  31. 　前記支持体が第３の被結合部をさらに備え、
    　前記被駆動体が第４の被結合部をさらに備え、
    　前記バネが第１のバネであり、
    　前記平行バネが第２のバネをさらに備え、
    　前記第２のバネが第３の結合部及び第４の結合部をさらに備え、
    　前記第３の結合部が前記第３の被結合部に結合され、
    　前記第４の結合部が前記第４の被結合部に結合され前記第２のバネの弾性変形により前記駆動方向に移動可能であり、
    　前記第２のバネが前記第２の側面、前記第３の側面及び前記第４の側面から選択された側面に沿って延在する
    請求項２５から３０までのいずれかの駆動ユニット。     The support further includes a third coupled portion;
    The driven body further includes a fourth coupled portion;
    The spring is a first spring;
    The parallel spring further comprises a second spring;
    The second spring further comprises a third coupling portion and a fourth coupling portion;
    The third coupling portion is coupled to the third coupled portion;
    The fourth coupling portion is coupled to the fourth coupled portion and is movable in the driving direction by elastic deformation of the second spring;
    31. The drive unit according to claim 25, wherein the second spring extends along a side surface selected from the second side surface, the third side surface, and the fourth side surface.
  32. 　前記選択された側面が前記第２の側面である
    請求項３１の駆動ユニット。     32. The drive unit of claim 31, wherein the selected side is the second side.
  33. 　前記アクチュエーターが線状形状記憶合金アクチュエーター、板状形状記憶合金アクチュエーター又はバイメタルアクチュエーターである
    請求項１から３２までのいずれかの駆動ユニット。     The drive unit according to any one of claims 1 to 32, wherein the actuator is a linear shape memory alloy actuator, a plate shape memory alloy actuator, or a bimetal actuator.
  34. 　前記被駆動体がマルチアレイレンズを備える
    請求項１から３３までのいずれかの駆動ユニット。     34. The drive unit according to claim 1, wherein the driven body includes a multi-array lens.
  35. 　前記マルチアレイレンズがｍ×ｎ個のレンズを備え、ｍ及びｎが自然数であり、ｍ×ｎが２以上の自然数である
    請求項３４の駆動ユニット。     35. The drive unit according to claim 34, wherein the multi-array lens includes m × n lenses, m and n are natural numbers, and m × n is a natural number of 2 or more.
  36. 　前記被駆動体がレンズを備える
    請求項１から３３までのいずれかの駆動ユニット。     34. The drive unit according to claim 1, wherein the driven body includes a lens.
  37. 　位置固定のレンズ又は位置固定のマルチアレイレンズをさらに備える
    請求項３４から３６までのいずれかの駆動ユニット。     37. The drive unit according to claim 34, further comprising a fixed lens or a fixed multi-array lens.
  38. 　請求項３４から３７までのいずれかの駆動ユニットと、
    　前記マルチアレイレンズ又は前記レンズを通して結像された像を撮像する撮像素子と、
    を備える撮像装置。     A drive unit according to any of claims 34 to 37;
    An image pickup device for picking up an image formed through the multi-array lens or the lens;
    An imaging apparatus comprising:
  39. 　前記マルチアレイレンズが２個以上のレンズを備え、
    　前記２個以上のレンズにより結像された像が１個の前記撮像素子により撮像される
    請求項３８の撮像装置。     The multi-array lens comprises two or more lenses;
    The image pickup apparatus according to claim 38, wherein an image formed by the two or more lenses is picked up by one image pickup element.
PCT/JP2014/080508 2014-01-09 2014-11-18 Drive unit and imaging device WO2015104902A1 (en)

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