JP2018189827A - 変位検出装置、レンズ鏡筒、および撮像装置 - Google Patents

変位検出装置、レンズ鏡筒、および撮像装置 Download PDF

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Publication number
JP2018189827A
JP2018189827A JP2017092639A JP2017092639A JP2018189827A JP 2018189827 A JP2018189827 A JP 2018189827A JP 2017092639 A JP2017092639 A JP 2017092639A JP 2017092639 A JP2017092639 A JP 2017092639A JP 2018189827 A JP2018189827 A JP 2018189827A
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JP
Japan
Prior art keywords
electrode
detection
wiring
displacement
capacitance
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.)
Pending
Application number
JP2017092639A
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English (en)
Japanese (ja)
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JP2018189827A5 (https=
Inventor
かおり 戸村
Kaori Tomura
かおり 戸村
和宏 野口
Kazuhiro Noguchi
和宏 野口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2017092639A priority Critical patent/JP2018189827A/ja
Priority to US15/959,588 priority patent/US10754121B2/en
Publication of JP2018189827A publication Critical patent/JP2018189827A/ja
Publication of JP2018189827A5 publication Critical patent/JP2018189827A5/ja
Pending legal-status Critical Current

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
    • G01D5/2412—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying overlap
    • G01D5/2415—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying overlap adapted for encoders
    • 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
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • G03B17/565—Optical accessories, e.g. converters for close-up photography, tele-convertors, wide-angle convertors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Optics & Photonics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Lens Barrels (AREA)
JP2017092639A 2017-05-08 2017-05-08 変位検出装置、レンズ鏡筒、および撮像装置 Pending JP2018189827A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017092639A JP2018189827A (ja) 2017-05-08 2017-05-08 変位検出装置、レンズ鏡筒、および撮像装置
US15/959,588 US10754121B2 (en) 2017-05-08 2018-04-23 Displacement detecting apparatus, lens barrel, and imaging apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017092639A JP2018189827A (ja) 2017-05-08 2017-05-08 変位検出装置、レンズ鏡筒、および撮像装置

Publications (2)

Publication Number Publication Date
JP2018189827A true JP2018189827A (ja) 2018-11-29
JP2018189827A5 JP2018189827A5 (https=) 2020-06-11

Family

ID=64014621

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017092639A Pending JP2018189827A (ja) 2017-05-08 2017-05-08 変位検出装置、レンズ鏡筒、および撮像装置

Country Status (2)

Country Link
US (1) US10754121B2 (https=)
JP (1) JP2018189827A (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109631735B (zh) * 2019-01-04 2020-09-11 重庆理工大学 一种基于交变电场的平面二维时栅位移传感器
CN116481574B (zh) * 2023-04-10 2025-07-22 桂林市晶瑞传感技术有限公司 容栅传感器和绝对位置测量装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0954788A (ja) * 1995-08-11 1997-02-25 Canon Inc 印刷回路基板の設計方法、印刷回路基板及び印刷回路基板を備える電子機器
JP2001091205A (ja) * 1999-07-22 2001-04-06 Sumitomo Metal Ind Ltd 物体搭載装置
US20150268790A1 (en) * 2014-03-21 2015-09-24 Advanced Sensor Technology Limited Position sensing device and method using self-capacitance
JP2016217821A (ja) * 2015-05-19 2016-12-22 キヤノン株式会社 変位検出装置、レンズ鏡筒、および、撮像装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633249A (en) * 1983-05-18 1986-12-30 Mitutoyo Mfg. Co., Ltd. Displacement detector utilizing change of capacitance
JP2004061459A (ja) * 2002-07-31 2004-02-26 Canon Inc 位置検出装置、これを備えたレンズおよび位置検出方法
JP2009189132A (ja) 2008-02-05 2009-08-20 Olympus Corp 慣性駆動アクチュエータ
JP2012255899A (ja) 2011-06-08 2012-12-27 Olympus Imaging Corp カメラシステム及びレンズ鏡筒
JP6417287B2 (ja) 2015-06-19 2018-11-07 アルプス電気株式会社 入力装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0954788A (ja) * 1995-08-11 1997-02-25 Canon Inc 印刷回路基板の設計方法、印刷回路基板及び印刷回路基板を備える電子機器
JP2001091205A (ja) * 1999-07-22 2001-04-06 Sumitomo Metal Ind Ltd 物体搭載装置
US20150268790A1 (en) * 2014-03-21 2015-09-24 Advanced Sensor Technology Limited Position sensing device and method using self-capacitance
JP2016217821A (ja) * 2015-05-19 2016-12-22 キヤノン株式会社 変位検出装置、レンズ鏡筒、および、撮像装置

Also Published As

Publication number Publication date
US10754121B2 (en) 2020-08-25
US20180321458A1 (en) 2018-11-08

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