DE102014015978B4 - Positionsdetektiervorrichtung und diese enthaltende Linsenvorrichtung und Bildaufnahmevorrichtung - Google Patents

Positionsdetektiervorrichtung und diese enthaltende Linsenvorrichtung und Bildaufnahmevorrichtung Download PDF

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Publication number
DE102014015978B4
DE102014015978B4 DE102014015978.7A DE102014015978A DE102014015978B4 DE 102014015978 B4 DE102014015978 B4 DE 102014015978B4 DE 102014015978 A DE102014015978 A DE 102014015978A DE 102014015978 B4 DE102014015978 B4 DE 102014015978B4
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synchronism
scale
signal
absolute position
calculation
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German (de)
English (en)
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DE102014015978A1 (de
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c/o CANON KABUSHIKI KAISHA Yonezawa Takeshi
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Canon Inc
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Canon Inc
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    • 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
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • 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
    • G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24457—Failure detection
    • G01D5/24466—Comparison of the error value to a threshold
    • 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
    • G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—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 characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • G01D5/2451—Incremental encoders
    • G01D5/2452—Incremental encoders incorporating two or more tracks having an (n, n+1, ...) relationship

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
DE102014015978.7A 2013-10-30 2014-10-29 Positionsdetektiervorrichtung und diese enthaltende Linsenvorrichtung und Bildaufnahmevorrichtung Active DE102014015978B4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-224848 2013-10-30
JP2013224848A JP6533360B2 (ja) 2013-10-30 2013-10-30 位置検出装置及びそれを有するレンズ装置及び撮影装置

Publications (2)

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DE102014015978A1 DE102014015978A1 (de) 2015-04-30
DE102014015978B4 true DE102014015978B4 (de) 2021-04-29

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Country Status (3)

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US (1) US9574910B2 (enExample)
JP (1) JP6533360B2 (enExample)
DE (1) DE102014015978B4 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6533360B2 (ja) * 2013-10-30 2019-06-19 キヤノン株式会社 位置検出装置及びそれを有するレンズ装置及び撮影装置
US10215596B2 (en) * 2015-01-16 2019-02-26 Canon Kabushiki Kaisha Position detection apparatus, lens apparatus, image pickup system, machine tool apparatus, exposure apparatus, position detection method, and non-transitory computer-readable storage medium which are capable of detecting reference position with high accuracy
JP2018036090A (ja) * 2016-08-30 2018-03-08 キヤノンプレシジョン株式会社 エンコーダおよびこれを備えた装置
JP7203584B2 (ja) * 2018-12-03 2023-01-13 キヤノンプレシジョン株式会社 アブソリュートロータリエンコーダ
US20200249055A1 (en) * 2019-02-06 2020-08-06 Canon Kabushiki Kaisha Position detection method, control method, manufacturing method, position detection apparatus, robot apparatus, optical device, and non-transitory recording medium
JP7350559B2 (ja) * 2019-08-08 2023-09-26 キヤノン株式会社 エンコーダ装置、駆動装置、ロボット装置、位置検出方法、物品の製造方法、プログラム、及び記録媒体
US11874144B2 (en) * 2020-07-28 2024-01-16 Li Lin Displacement measurement system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0545151A (ja) * 1991-08-12 1993-02-23 Mitsutoyo Corp 変位測定装置
JPH08304113A (ja) * 1995-05-09 1996-11-22 Yokogawa Electric Corp バーニア形アブソリュートエンコーダ
US6279248B1 (en) * 1999-09-22 2001-08-28 Central Purchasing, Inc. Digital measuring system having a multi-row encoder disk
US20090256065A1 (en) * 2008-04-15 2009-10-15 Mitutoyo Corporation Absolute position length measurement type encoder
DE102010002949A1 (de) * 2009-03-17 2010-09-23 Mitutoyo Corp., Kawasaki-shi Absoluttyp-Linearkodierer und Verfahren zur Einstellung seiner Position
US20130099105A1 (en) * 2011-10-14 2013-04-25 Canon Kabushiki Kaisha Encoder and apparatus using the same

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US4991125A (en) * 1989-04-19 1991-02-05 Mitutoyo Corporation Displacement detector
US5260568A (en) * 1990-07-18 1993-11-09 Okuma Corporation Absolute position detector with diffraction grating windows and spot position detection
JP2005241458A (ja) * 2004-02-26 2005-09-08 Canon Inc 記録装置及びエンコーダの劣化状態判定方法
US7432497B2 (en) * 2005-09-29 2008-10-07 Mitutoyo Corporation Absolute linear encoder
JP5286584B2 (ja) * 2007-06-19 2013-09-11 株式会社ミツトヨ 絶対位置測長型エンコーダ
JP5011201B2 (ja) * 2008-05-01 2012-08-29 株式会社ミツトヨ 絶対位置測長型エンコーダ
JP5103267B2 (ja) * 2008-05-13 2012-12-19 株式会社ミツトヨ 絶対位置測長型エンコーダ
JP5161702B2 (ja) * 2008-08-25 2013-03-13 キヤノン株式会社 撮像装置、撮像システム、及び焦点検出方法
JP5755009B2 (ja) * 2011-04-14 2015-07-29 キヤノン株式会社 エンコーダ
JP5829464B2 (ja) * 2011-09-01 2015-12-09 株式会社ミツトヨ 絶対測長型エンコーダ
JP2013156120A (ja) * 2012-01-30 2013-08-15 Canon Inc 位置検出装置およびレンズ鏡筒
JP6150462B2 (ja) * 2012-05-02 2017-06-21 キヤノン株式会社 位置検出エンコーダおよびこれを用いた装置
JP5968062B2 (ja) * 2012-05-02 2016-08-10 キヤノン株式会社 位置検出エンコーダおよびこれを用いた装置
JP6168762B2 (ja) * 2012-12-14 2017-07-26 キヤノン株式会社 アブソリュートエンコーダ
JP6147038B2 (ja) * 2013-03-15 2017-06-14 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、および、工作装置
JP6422201B2 (ja) * 2013-03-28 2018-11-14 キヤノン株式会社 位置検出手段
JP6207208B2 (ja) * 2013-04-12 2017-10-04 キヤノン株式会社 位置検出手段
JP6114638B2 (ja) * 2013-06-07 2017-04-12 株式会社ミツトヨ エンコーダ
JP6253320B2 (ja) * 2013-09-13 2017-12-27 キヤノン株式会社 エンコーダおよびこれを用いた装置
JP6533360B2 (ja) * 2013-10-30 2019-06-19 キヤノン株式会社 位置検出装置及びそれを有するレンズ装置及び撮影装置
JP6334892B2 (ja) * 2013-10-30 2018-05-30 キヤノン株式会社 位置検出装置及びそれを有するレンズ装置及び撮影装置
JP6313571B2 (ja) * 2013-11-12 2018-04-18 キヤノン株式会社 位置検出装置及びそれを有するレンズ装置及び撮影装置
JP6408804B2 (ja) * 2014-07-03 2018-10-17 キヤノン株式会社 位置検出装置及びそれを有するレンズ装置及び撮影装置
JP6666019B2 (ja) * 2014-11-11 2020-03-13 キヤノン株式会社 位置検出装置、レンズ装置、撮像装置、および指令装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0545151A (ja) * 1991-08-12 1993-02-23 Mitsutoyo Corp 変位測定装置
JPH08304113A (ja) * 1995-05-09 1996-11-22 Yokogawa Electric Corp バーニア形アブソリュートエンコーダ
US6279248B1 (en) * 1999-09-22 2001-08-28 Central Purchasing, Inc. Digital measuring system having a multi-row encoder disk
US20090256065A1 (en) * 2008-04-15 2009-10-15 Mitutoyo Corporation Absolute position length measurement type encoder
DE102010002949A1 (de) * 2009-03-17 2010-09-23 Mitutoyo Corp., Kawasaki-shi Absoluttyp-Linearkodierer und Verfahren zur Einstellung seiner Position
US20130099105A1 (en) * 2011-10-14 2013-04-25 Canon Kabushiki Kaisha Encoder and apparatus using the same

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JP2015087194A (ja) 2015-05-07
US20150115142A1 (en) 2015-04-30
DE102014015978A1 (de) 2015-04-30
US9574910B2 (en) 2017-02-21
JP6533360B2 (ja) 2019-06-19

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