JP4803641B2 - 光学式エンコーダ - Google Patents

光学式エンコーダ Download PDF

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Publication number
JP4803641B2
JP4803641B2 JP2005139401A JP2005139401A JP4803641B2 JP 4803641 B2 JP4803641 B2 JP 4803641B2 JP 2005139401 A JP2005139401 A JP 2005139401A JP 2005139401 A JP2005139401 A JP 2005139401A JP 4803641 B2 JP4803641 B2 JP 4803641B2
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JP
Japan
Prior art keywords
light
grating
scale
optical
light source
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.)
Expired - Lifetime
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JP2005139401A
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English (en)
Japanese (ja)
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JP2006317244A (ja
JP2006317244A5 (enExample
Inventor
英二 山本
吉己 黒田
潤 羽根
岩男 駒崎
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Olympus Corp
Original Assignee
Olympus Corp
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 Olympus Corp filed Critical Olympus Corp
Priority to JP2005139401A priority Critical patent/JP4803641B2/ja
Priority to EP06008827.5A priority patent/EP1722201B1/en
Priority to US11/417,357 priority patent/US7417218B2/en
Publication of JP2006317244A publication Critical patent/JP2006317244A/ja
Publication of JP2006317244A5 publication Critical patent/JP2006317244A5/ja
Application granted granted Critical
Publication of JP4803641B2 publication Critical patent/JP4803641B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G01D5/36—Forming the light into pulses
    • G01D5/38—Forming the light into pulses by diffraction gratings

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
JP2005139401A 2005-05-12 2005-05-12 光学式エンコーダ Expired - Lifetime JP4803641B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2005139401A JP4803641B2 (ja) 2005-05-12 2005-05-12 光学式エンコーダ
EP06008827.5A EP1722201B1 (en) 2005-05-12 2006-04-27 Optical encoder
US11/417,357 US7417218B2 (en) 2005-05-12 2006-05-03 Triple grating optical encoder with light transmitting area in optical path

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005139401A JP4803641B2 (ja) 2005-05-12 2005-05-12 光学式エンコーダ

Publications (3)

Publication Number Publication Date
JP2006317244A JP2006317244A (ja) 2006-11-24
JP2006317244A5 JP2006317244A5 (enExample) 2008-05-29
JP4803641B2 true JP4803641B2 (ja) 2011-10-26

Family

ID=36793945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005139401A Expired - Lifetime JP4803641B2 (ja) 2005-05-12 2005-05-12 光学式エンコーダ

Country Status (3)

Country Link
US (1) US7417218B2 (enExample)
EP (1) EP1722201B1 (enExample)
JP (1) JP4803641B2 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4535794B2 (ja) * 2004-07-09 2010-09-01 オリンパス株式会社 反射型光学式エンコーダーのセンサーヘッド
DE112005001737T5 (de) * 2004-07-22 2007-07-19 Kabushiki Kaisha Yaskawa Denki, Kitakyushu Optischer Detektor mit Reflektionsverhalten
JP2007076027A (ja) * 2005-09-12 2007-03-29 Seiko Epson Corp 位置検出装置およびこの位置検出装置を備える液体吐出装置
US7304294B2 (en) * 2006-02-09 2007-12-04 Avago Technologis General Ip (Singapore) Pte Ltd Reflective encoder with reduced background noise
JP5198434B2 (ja) * 2007-04-10 2013-05-15 オリンパス株式会社 光学式エンコーダ
EP2162705A4 (en) 2007-06-19 2014-02-19 3M Innovative Properties Co SYSTEMS AND METHOD FOR MANUFACTURING SHIFT CALCULATIONS
CN101678977B (zh) 2007-06-19 2012-07-11 3M创新有限公司 用于指示幅材位置的系统和方法
JP2010181181A (ja) * 2009-02-03 2010-08-19 Canon Inc スケール、それを有する変位検出装置、及びそれを有する撮像装置
US8637805B2 (en) * 2010-03-29 2014-01-28 Mitutoyo Corporation Optical encoder using off-axis imaging through a lens
US8493569B2 (en) * 2010-12-27 2013-07-23 Mitutoyo Corporation Optical encoder readhead configuration with phosphor layer
US8847144B2 (en) * 2011-08-08 2014-09-30 Avago Technologies General Ip (Singapore) Pte. Ltd. Enhanced optical reflective encoder
US9562793B2 (en) 2014-11-17 2017-02-07 Mitutoyo Corporation Illumination portion for an optical encoder
US9689715B2 (en) 2015-05-19 2017-06-27 Mitutoyo Corporation Light source array used in an illumination portion of an optical encoder
DE102017201257A1 (de) * 2017-01-26 2018-07-26 Dr. Johannes Heidenhain Gmbh Positionsmesseinrichtung
JP2019002810A (ja) * 2017-06-15 2019-01-10 株式会社ミツトヨ 受光装置およびこれを備えた光電式エンコーダ
CN107843277A (zh) * 2017-12-25 2018-03-27 上海恩弼科技有限公司 光学编码器及其制作方法
CN107990922A (zh) * 2017-12-28 2018-05-04 长春禹衡光学有限公司 一种光电编码器
GB201916641D0 (en) 2019-11-15 2020-01-01 Renishaw Plc Position measurement device
GB201916662D0 (en) 2019-11-15 2020-01-01 Renishaw Plc Encoder apparatus

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695719A (en) * 1983-12-05 1987-09-22 Honeywell Inc. Apparatus and method for opto-electronic package
GB2247313B (en) * 1988-02-22 1992-08-19 Mitutoyo Corp Optical encoder.
EP0543513B2 (en) * 1991-11-06 2007-10-24 Renishaw Transducer Systems Limited Opto-electronic scale-reading apparatus
JP3513251B2 (ja) * 1994-03-14 2004-03-31 キヤノン株式会社 光学式変位センサ
DE29805392U1 (de) * 1998-03-25 1999-08-05 Dr. Johannes Heidenhain Gmbh, 83301 Traunreut Optoelektronische Baugruppe
DE19859670A1 (de) * 1998-12-23 2000-06-29 Heidenhain Gmbh Dr Johannes Abtastkopf und Verfahren zu dessen Herstellung
JP3720751B2 (ja) * 2001-10-23 2005-11-30 オリンパス株式会社 光学式エンコーダ
JP2003166856A (ja) * 2001-11-29 2003-06-13 Fuji Electric Co Ltd 光学式エンコーダ
JP2004006753A (ja) * 2002-04-05 2004-01-08 Canon Inc 光半導体用パッケージ
JP2005049345A (ja) * 2003-07-15 2005-02-24 Olympus Corp 光学式変位センサ
JP4021382B2 (ja) * 2003-07-28 2007-12-12 オリンパス株式会社 光学式エンコーダ及びその製造方法並びに光学レンズモジュール
JP4418278B2 (ja) * 2004-03-30 2010-02-17 オリンパス株式会社 光学式エンコーダ及びその製造方法
JP4535794B2 (ja) * 2004-07-09 2010-09-01 オリンパス株式会社 反射型光学式エンコーダーのセンサーヘッド

Also Published As

Publication number Publication date
EP1722201B1 (en) 2013-06-19
US7417218B2 (en) 2008-08-26
US20060255252A1 (en) 2006-11-16
JP2006317244A (ja) 2006-11-24
EP1722201A2 (en) 2006-11-15
EP1722201A3 (en) 2007-08-08

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