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GB2570171B - Shape memory alloy actuation apparatus - Google Patents

Shape memory alloy actuation apparatus

Info

Publication number
GB2570171B
GB2570171B GB1810198.0A GB201810198A GB2570171B GB 2570171 B GB2570171 B GB 2570171B GB 201810198 A GB201810198 A GB 201810198A GB 2570171 B GB2570171 B GB 2570171B
Authority
GB
United Kingdom
Prior art keywords
shape memory
memory alloy
actuation apparatus
alloy actuation
shape
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
GB1810198.0A
Other versions
GB2570171A (en
GB201810198D0 (en
Inventor
matthew bunting Stephen
Benjamin Simpson Brown Andrew
Original Assignee
Cambridge Mechatronics Ltd
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 Cambridge Mechatronics Ltd filed Critical Cambridge Mechatronics Ltd
Priority to GB2105754.2A priority Critical patent/GB2591699B/en
Publication of GB201810198D0 publication Critical patent/GB201810198D0/en
Priority to CN201910033495.0A priority patent/CN110031947A/en
Publication of GB2570171A publication Critical patent/GB2570171A/en
Application granted granted Critical
Publication of GB2570171B publication Critical patent/GB2570171B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
    • F03G7/061—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element
    • F03G7/0614—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element using shape memory elements
    • F03G7/06143—Wires
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • 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
    • 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
    • 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
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053—Driving means for the movement of one or more optical element
    • G03B2205/0076—Driving means for the movement of one or more optical element using shape memory alloys

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lens Barrels (AREA)
GB1810198.0A 2018-01-12 2018-06-21 Shape memory alloy actuation apparatus Active GB2570171B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2105754.2A GB2591699B (en) 2018-01-12 2018-06-21 Shape memory alloy actuation apparatus
CN201910033495.0A CN110031947A (en) 2018-01-12 2019-01-14 Shape memory alloy actuation apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1800544.7A GB201800544D0 (en) 2018-01-12 2018-01-12 Shape memory alloy actuator

Publications (3)

Publication Number Publication Date
GB201810198D0 GB201810198D0 (en) 2018-08-08
GB2570171A GB2570171A (en) 2019-07-17
GB2570171B true GB2570171B (en) 2021-08-11

Family

ID=61256160

Family Applications (3)

Application Number Title Priority Date Filing Date
GBGB1800544.7A Ceased GB201800544D0 (en) 2018-01-12 2018-01-12 Shape memory alloy actuator
GB2105754.2A Active GB2591699B (en) 2018-01-12 2018-06-21 Shape memory alloy actuation apparatus
GB1810198.0A Active GB2570171B (en) 2018-01-12 2018-06-21 Shape memory alloy actuation apparatus

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GBGB1800544.7A Ceased GB201800544D0 (en) 2018-01-12 2018-01-12 Shape memory alloy actuator
GB2105754.2A Active GB2591699B (en) 2018-01-12 2018-06-21 Shape memory alloy actuation apparatus

Country Status (2)

Country Link
CN (1) CN110031947A (en)
GB (3) GB201800544D0 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201919339D0 (en) * 2019-12-26 2020-02-05 Cambridge Mechatronics Ltd An actuation apparatus
WO2021138766A1 (en) * 2020-01-06 2021-07-15 Huawei Technologies Co., Ltd. Optical image stabilizing system comprising shape memory alloy wires and methods of fabricating thereof
GB2593681A (en) * 2020-03-26 2021-10-06 Cambridge Mechatronics Ltd A shape memory actuator
GB2594921A (en) * 2020-04-16 2021-11-17 Cambridge Mechatronics Ltd Actuator assembly
CN114200739A (en) 2020-09-02 2022-03-18 哈钦森技术股份有限公司 Guided autofocus assembly
CN114397764A (en) * 2020-10-22 2022-04-26 台湾东电化股份有限公司 Optical mechanism and optical system
CN212321951U (en) * 2020-12-08 2021-01-08 常州市瑞泰光电有限公司 Lens driving device
GB2605640A (en) * 2021-04-08 2022-10-12 Cambridge Mechatronics Ltd Actuator fabrication
CN113359273A (en) * 2021-07-01 2021-09-07 中国科学院长春光学精密机械与物理研究所 Large-corner cross frame type quick reflector device
GB202111134D0 (en) * 2021-08-02 2021-09-15 Cambridge Mechatronics Ltd Actuator assembly
CN118257786B (en) * 2024-05-17 2025-10-21 福州大学 A three-way frequency-adjustable NiTi serpentine reed/wire mesh composite bearing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014010380A (en) * 2012-07-02 2014-01-20 Panasonic Corp Lens actuator
GB201602100D0 (en) * 2016-02-05 2016-03-23 Cambridge Mechatronics Ltd Opposing SMA Wire Autofocus
CN107079090B (en) * 2016-04-21 2019-03-08 深圳市大疆创新科技有限公司 UAV and camera components
GB201721716D0 (en) * 2017-12-22 2018-02-07 Cambridge Mechatronics Ltd Sma actuator

Also Published As

Publication number Publication date
GB201800544D0 (en) 2018-02-28
GB202105754D0 (en) 2021-06-09
GB2591699A (en) 2021-08-04
GB2570171A (en) 2019-07-17
GB2591699B (en) 2022-03-02
GB201810198D0 (en) 2018-08-08
CN110031947A (en) 2019-07-19

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