JP6039299B2 - エンコーダ、レンズ装置、および、カメラ - Google Patents

エンコーダ、レンズ装置、および、カメラ Download PDF

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Publication number
JP6039299B2
JP6039299B2 JP2012176385A JP2012176385A JP6039299B2 JP 6039299 B2 JP6039299 B2 JP 6039299B2 JP 2012176385 A JP2012176385 A JP 2012176385A JP 2012176385 A JP2012176385 A JP 2012176385A JP 6039299 B2 JP6039299 B2 JP 6039299B2
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JP
Japan
Prior art keywords
scale
lens
unit
cylindrical portion
holding
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Expired - Fee Related
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JP2012176385A
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English (en)
Japanese (ja)
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JP2014035438A (ja
JP2014035438A5 (enExample
Inventor
和宏 野口
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
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Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2012176385A priority Critical patent/JP6039299B2/ja
Priority to US13/959,852 priority patent/US9121735B2/en
Publication of JP2014035438A publication Critical patent/JP2014035438A/ja
Publication of JP2014035438A5 publication Critical patent/JP2014035438A5/ja
Application granted granted Critical
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Classifications

    • 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
    • G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/3473—Circular or rotary encoders
    • 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
    • G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/34776—Absolute encoders with analogue or digital scales
    • 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
    • G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/34776—Absolute encoders with analogue or digital scales
    • G01D5/34792—Absolute encoders with analogue or digital scales with only digital scales or both digital and incremental scales
    • G01D5/34794—Optical encoders using the Vernier principle, i.e. incorporating two or more tracks having a (n, n+1, ...) relationship

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lens Barrels (AREA)
  • Studio Devices (AREA)
JP2012176385A 2012-08-08 2012-08-08 エンコーダ、レンズ装置、および、カメラ Expired - Fee Related JP6039299B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2012176385A JP6039299B2 (ja) 2012-08-08 2012-08-08 エンコーダ、レンズ装置、および、カメラ
US13/959,852 US9121735B2 (en) 2012-08-08 2013-08-06 Encoder, lens apparatus, and camera capable of detecting position of object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012176385A JP6039299B2 (ja) 2012-08-08 2012-08-08 エンコーダ、レンズ装置、および、カメラ

Publications (3)

Publication Number Publication Date
JP2014035438A JP2014035438A (ja) 2014-02-24
JP2014035438A5 JP2014035438A5 (enExample) 2015-09-24
JP6039299B2 true JP6039299B2 (ja) 2016-12-07

Family

ID=50065936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012176385A Expired - Fee Related JP6039299B2 (ja) 2012-08-08 2012-08-08 エンコーダ、レンズ装置、および、カメラ

Country Status (2)

Country Link
US (1) US9121735B2 (enExample)
JP (1) JP6039299B2 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6399799B2 (ja) 2014-05-12 2018-10-03 キヤノン株式会社 光学機器および撮像装置
JP6486097B2 (ja) 2014-12-19 2019-03-20 キヤノン株式会社 位置検出装置、レンズ装置、撮像システム、工作装置、位置検出方法、プログラム、および、記憶媒体
JP6602025B2 (ja) 2015-03-03 2019-11-06 キヤノン株式会社 光学機器
JP6584252B2 (ja) * 2015-09-14 2019-10-02 キヤノン株式会社 電子機器および撮像装置
US11082601B2 (en) 2017-09-30 2021-08-03 Hangzhou Hikmicro Sensing Technology Co., Ltd. Imaging device and lens focusing method
US10739552B2 (en) * 2018-02-21 2020-08-11 Panavision International, L.P. Internally slotted cam for lens system
JP6746629B2 (ja) * 2018-03-13 2020-08-26 キヤノン株式会社 回転力伝達装置、並びにそれを備えたレンズ装置および撮像装置
CN114174884B (zh) * 2019-07-24 2023-08-01 富士胶片株式会社 镜筒

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703176A (en) * 1985-06-04 1987-10-27 Plus Development Corporation Compact polyphase optical position encoder
JPH02253213A (ja) * 1989-03-28 1990-10-12 Canon Inc レンズ鏡筒
JP3466680B2 (ja) * 1993-10-26 2003-11-17 キヤノン株式会社 光学式エンコーダ
JP3809239B2 (ja) * 1997-01-17 2006-08-16 株式会社Ｎｅｏｍａｘ 寸法測定装置
JP2000289281A (ja) * 1999-04-08 2000-10-17 Seiko Epson Corp リニアエンコーダ用スケールの取付け構造
JP5043318B2 (ja) * 2005-08-12 2012-10-10 キヤノン株式会社 光学機器
JP5044210B2 (ja) * 2006-12-28 2012-10-10 株式会社タムロン レンズ駆動装置
JP2009169052A (ja) 2008-01-16 2009-07-30 Canon Inc レンズ鏡筒及びそれを有する撮像装置
JP2010054645A (ja) * 2008-08-27 2010-03-11 Ricoh Co Ltd レンズ駆動装置およびカメラ
JP5574696B2 (ja) * 2009-12-21 2014-08-20 キヤノン株式会社 レンズ鏡筒
JP5574899B2 (ja) * 2010-09-24 2014-08-20 キヤノン株式会社 ロータリーエンコーダ及びこれを備えた光学機器
JP2012122771A (ja) 2010-12-06 2012-06-28 Mitsutoyo Corp 円筒型スケールの作製方法、円筒型スケール、及びロータリーエンコーダ
US9052569B2 (en) * 2011-06-23 2015-06-09 Olympus Imaging Corp. Optical instrument, and control method for optical instrument
JP2013007906A (ja) * 2011-06-24 2013-01-10 Olympus Imaging Corp レンズ鏡筒及びカメラシステム
JP2013104920A (ja) * 2011-11-10 2013-05-30 Canon Inc 光学素子駆動装置および光学機器
DE102011121021B4 (de) * 2011-12-13 2022-12-01 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Bedieneinheit

Also Published As

Publication number Publication date
US9121735B2 (en) 2015-09-01
US20140043526A1 (en) 2014-02-13
JP2014035438A (ja) 2014-02-24

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