IN168444B - - Google Patents

Info

Publication number
IN168444B
IN168444B IN615/CAL/87A IN615CA1987A IN168444B IN 168444 B IN168444 B IN 168444B IN 615CA1987 A IN615CA1987 A IN 615CA1987A IN 168444 B IN168444 B IN 168444B
Authority
IN
India
Application number
IN615/CAL/87A
Other languages
English (en)
Inventor
Souji Ichikawa
Original Assignee
Mitutoyo Mfg Co 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
Priority claimed from JP19153286A external-priority patent/JPS6347615A/ja
Priority claimed from JP19418486A external-priority patent/JPS6350722A/ja
Priority claimed from JP19418386A external-priority patent/JPS6350721A/ja
Priority claimed from JP20855586A external-priority patent/JPS6363917A/ja
Priority claimed from JP20855486A external-priority patent/JPS6363916A/ja
Application filed by Mitutoyo Mfg Co Ltd filed Critical Mitutoyo Mfg Co Ltd
Priority to IN235/CAL/90A priority Critical patent/IN169778B/en
Priority to IN234/CAL/90A priority patent/IN169777B/en
Priority to IN236/CAL/90A priority patent/IN169779B/en
Publication of IN168444B publication Critical patent/IN168444B/en

Links

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
    • G01D5/36—Forming the light into pulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
IN615/CAL/87A 1986-08-15 1987-08-07 IN168444B (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IN235/CAL/90A IN169778B (fi) 1986-08-15 1990-03-21
IN234/CAL/90A IN169777B (fi) 1986-08-15 1990-03-21
IN236/CAL/90A IN169779B (fi) 1986-08-15 1990-03-21

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP19153286A JPS6347615A (ja) 1986-08-15 1986-08-15 光学式変位検出器
JP19418486A JPS6350722A (ja) 1986-08-20 1986-08-20 光学式変位検出器
JP19418386A JPS6350721A (ja) 1986-08-20 1986-08-20 光学式変位検出器
JP20855586A JPS6363917A (ja) 1986-09-04 1986-09-04 光学式変位検出器
JP20855486A JPS6363916A (ja) 1986-09-04 1986-09-04 光学式変位検出器

Publications (1)

Publication Number Publication Date
IN168444B true IN168444B (fi) 1991-04-06

Family

ID=27529037

Family Applications (1)

Application Number Title Priority Date Filing Date
IN615/CAL/87A IN168444B (fi) 1986-08-15 1987-08-07

Country Status (5)

Country Link
US (1) US4912322A (fi)
CN (1) CN1013705B (fi)
DE (1) DE3727188C2 (fi)
GB (3) GB2194044B (fi)
IN (1) IN168444B (fi)

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US4943716A (en) * 1988-01-22 1990-07-24 Mitutoyo Corporation Diffraction-type optical encoder with improved detection signal insensitivity to optical grating gap variations
US4980259A (en) * 1989-01-26 1990-12-25 Savin Corporation Liquid developer formulation
US4952799A (en) † 1989-03-10 1990-08-28 Hewlett-Packard Company Reflective shaft angle encoder
GB2239088B (en) * 1989-11-24 1994-05-25 Ricoh Kk Optical movement measuring method and apparatus
US5148019A (en) * 1989-12-22 1992-09-15 Ricoh Company Ltd. Moving amount detecting method using a shadow picture diffraction interference pattern
DE4017954C1 (fi) * 1990-06-05 1991-08-29 Pav Praezisions-Apparatebau Ag, Vaduz, Li
DE4035948A1 (de) * 1990-11-09 1992-05-14 Leitz Messtechnik Messung von lageaenderungen
JP3089055B2 (ja) * 1991-08-14 2000-09-18 日本電産コパル株式会社 光学式変位検出装置
JP3005131B2 (ja) * 1992-12-28 2000-01-31 キヤノン株式会社 変位検出装置
US5307198A (en) * 1993-05-25 1994-04-26 Polaroid Corp. Scanner with combined predictive and diffractive feedback control of beam position
US5486925A (en) * 1993-06-01 1996-01-23 Rohm Co., Ltd. Displacement sensing apparatus for a movable member
JPH0719965A (ja) * 1993-06-30 1995-01-20 Ando Electric Co Ltd 光波長計
DE4323624C2 (de) * 1993-07-15 1997-09-11 Heidenhain Gmbh Dr Johannes Lichtelektrische Längen- oder Winkelmeßeinrichtung
DE4323712C2 (de) * 1993-07-15 1997-12-11 Heidenhain Gmbh Dr Johannes Lichtelektrische Längen- oder Winkelmeßeinrichtung
EP0729013B1 (en) * 1995-02-21 2002-07-17 Canon Kabushiki Kaisha Displacement detection apparatus and drive control apparatus using the same
JPH11281403A (ja) * 1998-03-27 1999-10-15 Futaba Corp 光学式リニヤスケール原点信号発生装置
EP1028309B1 (de) 1999-02-04 2003-04-16 Dr. Johannes Heidenhain GmbH Optische Positionsmesseinrichtung
DE19918101A1 (de) * 1999-04-22 2000-10-26 Heidenhain Gmbh Dr Johannes Optische Positionsmeßeinrichtung
US6492637B1 (en) * 1999-05-10 2002-12-10 Citizen Watch Co., Ltd. Dimension measuring device
US6279248B1 (en) 1999-09-22 2001-08-28 Central Purchasing, Inc. Digital measuring system having a multi-row encoder disk
US6590201B2 (en) * 1999-12-22 2003-07-08 Rohm Co., Ltd. Optical encoder incorporating linear light controlling member
JP3557584B2 (ja) * 2000-09-08 2004-08-25 双葉電子工業株式会社 リニヤスケールにおける計測信号生成回路
GB0103582D0 (en) * 2001-02-14 2001-03-28 Renishaw Plc Position determination system
JP2003121135A (ja) * 2001-10-10 2003-04-23 Futaba Corp リニヤスケールの読出装置
US7209235B2 (en) * 2002-07-11 2007-04-24 Hymite A/S Accurate positioning of components of a optical assembly
EP1519158B1 (de) * 2003-09-23 2010-08-11 Dr. Johannes Heidenhain GmbH Positionsmesseinrichtung
CN100397045C (zh) * 2004-01-26 2008-06-25 三丰株式会社 标尺的制造方法和光电式编码器
ES2524321T5 (es) * 2004-03-17 2018-10-23 Fagor, S.Coop. Encoder óptico
US7281339B2 (en) * 2004-05-06 2007-10-16 Universal Instruments Corporation Encoder system
DE102004035172A1 (de) * 2004-07-16 2006-02-09 Dr. Johannes Heidenhain Gmbh Positionsmesseinrichtung
US7227124B2 (en) * 2005-06-20 2007-06-05 Mitutoyo Corporation Illumination configuration for imaging-type optical encoders
US7465917B2 (en) * 2006-02-16 2008-12-16 Avago Technologies General Ip (Singapore) Pte. Ltd. Absolute encoder utilizing light of different wavelengths to reduce cross-talk
EP1862774B1 (fr) * 2006-05-31 2015-07-29 Delphi Technologies, Inc. Optical multiturn rotational encoder
US20080062497A1 (en) * 2006-09-11 2008-03-13 Bredon Alan D Optical Encoder Having Non-Collimated, Point-Source Light Emitter
JP4976823B2 (ja) * 2006-11-15 2012-07-18 株式会社ミツトヨ 光学式エンコーダ
JP2008286631A (ja) * 2007-05-17 2008-11-27 Sharp Corp 光学式エンコーダおよびそれを備える電子機器
US7820957B2 (en) * 2007-07-05 2010-10-26 Sharp Kabushiki Kaisha Optical encoder for detecting movement of a moving object and electronic equipment including the optical encoder
JP4777444B2 (ja) * 2009-03-03 2011-09-21 シャープ株式会社 デコーダ装置および移動制御装置
JP5562076B2 (ja) * 2010-03-10 2014-07-30 キヤノン株式会社 光学式エンコーダおよび変位計測装置
CN102095379B (zh) * 2010-08-27 2012-11-07 中国科学院长春光学精密机械与物理研究所 绝对式光栅尺
DE102010043615B4 (de) * 2010-11-09 2019-09-12 Dr. Johannes Heidenhain Gmbh Optischer Abstandssensor
JP6069653B2 (ja) * 2011-01-27 2017-02-01 株式会社ミツトヨ 光電式エンコーダ及びそのアライメント調整方法
TWI452255B (zh) * 2011-01-28 2014-09-11 私立中原大學 光學編碼器及其光學裝置與量測方法
CN102607468B (zh) * 2012-03-09 2013-08-21 方平 一种基于双通道光栅的微小角位移传感器
CN102589447B (zh) * 2012-03-09 2014-01-29 方平 基于双通道光栅的微小线性位移传感器
EP3052897B1 (en) * 2013-10-01 2019-07-17 Renishaw PLC Measurement encoder
JP6263965B2 (ja) 2013-11-05 2018-01-24 株式会社安川電機 エンコーダ、エンコーダ付きモータ、サーボシステム
JP6359340B2 (ja) * 2014-05-27 2018-07-18 株式会社ミツトヨ スケール及び光学式エンコーダ
CN105091747B (zh) * 2015-05-29 2017-08-29 中国计量学院 一种游标式光栅尺
DE102017201257A1 (de) 2017-01-26 2018-07-26 Dr. Johannes Heidenhain Gmbh Positionsmesseinrichtung
CN107462168A (zh) * 2017-08-31 2017-12-12 广东工业大学 一种新型阵列光电传感器光栅位移检测系统及方法
CN109489561B (zh) * 2018-12-05 2019-08-27 王勇 一种不限量程的高精度二维平面位移测量系统

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
DE1448504A1 (de) * 1963-08-05 1968-12-12 Wenczler & Heidenhain Fotoelektrische Einrichtung zur Messung von Laengen
US3768911A (en) * 1971-08-17 1973-10-30 Keuffel & Esser Co Electro-optical incremental motion and position indicator
US3812352A (en) * 1972-08-28 1974-05-21 Itek Corp Encoder readout system
GB1504691A (en) * 1974-03-15 1978-03-22 Nat Res Dev Measurement apparatus
US4049965A (en) * 1975-03-06 1977-09-20 National Research Development Corporation Measurement apparatus
DE2653545C2 (de) * 1976-11-25 1979-01-11 Ernst Leitz Wetzlar Gmbh, 6300 Lahn- Wetzlar Fotoelektrische Auflicht-Wegmeßeinrichtung
CH626169A5 (fi) * 1976-11-25 1981-10-30 Leitz Ernst Gmbh
DE2826213B2 (de) * 1978-06-15 1980-06-04 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Photoelektrisches inkrementales Längen- und Winkelmeßsystem
US4218615A (en) * 1978-10-23 1980-08-19 Martin Marietta Corporation Incremental digital shaft encoder
US4375592A (en) * 1980-12-19 1983-03-01 International Business Machines Corporation Incremental rotary encoder
JPS57157118A (en) * 1981-03-24 1982-09-28 Mitsutoyo Mfg Co Ltd Photoelectric type displacement detecting device
DE3148910C1 (de) * 1981-12-10 1983-03-10 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Lichtelektrische inkrementale Laengen- oder Winkelmesseinrichtung
DE3229846C2 (de) * 1982-08-11 1984-05-24 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Längen- oder Winkelmeßeinrichtung
DE3325803C2 (de) * 1983-07-16 1986-11-20 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Inkrementale, lichtelektrische Meßeinrichtung

Also Published As

Publication number Publication date
DE3727188C2 (de) 1997-07-10
US4912322A (en) 1990-03-27
GB9004757D0 (en) 1990-04-25
DE3727188A1 (de) 1988-04-21
GB2194044B (en) 1990-11-14
GB2228320B (en) 1990-11-14
GB2194044A (en) 1988-02-24
CN87106274A (zh) 1988-02-24
GB9004758D0 (en) 1990-04-25
GB2228320A (en) 1990-08-22
GB8719257D0 (en) 1987-09-23
GB2228321B (en) 1990-11-14
CN1013705B (zh) 1991-08-28
GB2228321A (en) 1990-08-22

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