JP4869628B2 - 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
JP4869628B2
JP4869628B2 JP2005153964A JP2005153964A JP4869628B2 JP 4869628 B2 JP4869628 B2 JP 4869628B2 JP 2005153964 A JP2005153964 A JP 2005153964A JP 2005153964 A JP2005153964 A JP 2005153964A JP 4869628 B2 JP4869628 B2 JP 4869628B2
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JP
Japan
Prior art keywords
signal
photodetector
reference position
optical encoder
output
Prior art date
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Expired - Fee Related
Application number
JP2005153964A
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English (en)
Japanese (ja)
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JP2006329818A5 (enExample
JP2006329818A (ja
Inventor
毅 伊藤
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.)
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 JP2005153964A priority Critical patent/JP4869628B2/ja
Priority to US11/418,532 priority patent/US7449678B2/en
Publication of JP2006329818A publication Critical patent/JP2006329818A/ja
Publication of JP2006329818A5 publication Critical patent/JP2006329818A5/ja
Application granted granted Critical
Publication of JP4869628B2 publication Critical patent/JP4869628B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
    • H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
    • H03M1/308—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental with additional pattern means for determining the absolute position, e.g. reference marks
    • 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
    • G01D5/34746—Linear 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
    • G01D5/36—Forming the light into pulses
    • G01D5/366—Particular pulse shapes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Transform (AREA)
JP2005153964A 2005-05-26 2005-05-26 光学式エンコーダ Expired - Fee Related JP4869628B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2005153964A JP4869628B2 (ja) 2005-05-26 2005-05-26 光学式エンコーダ
US11/418,532 US7449678B2 (en) 2005-05-26 2006-05-04 Optical encoder having reference position detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005153964A JP4869628B2 (ja) 2005-05-26 2005-05-26 光学式エンコーダ

Publications (3)

Publication Number Publication Date
JP2006329818A JP2006329818A (ja) 2006-12-07
JP2006329818A5 JP2006329818A5 (enExample) 2008-07-03
JP4869628B2 true JP4869628B2 (ja) 2012-02-08

Family

ID=37462685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005153964A Expired - Fee Related JP4869628B2 (ja) 2005-05-26 2005-05-26 光学式エンコーダ

Country Status (2)

Country Link
US (1) US7449678B2 (enExample)
JP (1) JP4869628B2 (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5053173B2 (ja) * 2008-05-16 2012-10-17 富士フイルム株式会社 位置検出センサ
WO2015049173A1 (en) * 2013-10-01 2015-04-09 Renishaw Plc Reference mark detector arrangement
DE102014215633A1 (de) * 2013-11-28 2015-05-28 Dr. Johannes Heidenhain Gmbh Positionsmesseinrichtung
CN104748773B (zh) * 2013-12-26 2017-07-25 同方威视技术股份有限公司 滑环编码器及其编码方法
EP2908101B1 (en) * 2014-02-14 2018-10-17 Canon Precision Inc. Encoder with origin detection
EP3064903B1 (en) * 2015-03-06 2018-06-13 Canon Precision Inc. Encoder
TWI648520B (zh) 2016-10-21 2019-01-21 財團法人工業技術研究院 光學編碼裝置
EP3593092B1 (en) 2017-03-07 2023-07-26 Renishaw PLC Encoder apparatus
CN108195293B (zh) * 2018-03-26 2024-05-10 磐石电气（常州）有限公司 一种数字式位移传感器及其位移测量方法
EP3623769A1 (en) 2018-09-12 2020-03-18 Renishaw PLC Measurement device
TWI680648B (zh) 2018-12-26 2019-12-21 財團法人工業技術研究院 編碼盤、檢光器、光學絕對式旋轉編碼器及編碼值輸出、偵錯與除錯的方法
TWI716246B (zh) 2019-12-31 2021-01-11 財團法人工業技術研究院 光學編碼器
JP7475973B2 (ja) * 2020-06-08 2024-04-30 キヤノン株式会社 光学式エンコーダ及び制御装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51106454A (ja) * 1975-03-15 1976-09-21 Olympus Optical Co Kodenshikienkooda
US5530543A (en) * 1994-07-06 1996-06-25 Optra, Inc. Detector array for use in interferometric metrology systems
GB0103582D0 (en) * 2001-02-14 2001-03-28 Renishaw Plc Position determination system
JP2003240607A (ja) * 2002-02-18 2003-08-27 Canon Inc エンコーダの電気分割回路
JP4428948B2 (ja) * 2003-06-30 2010-03-10 キヤノン株式会社 光学式エンコーダ
JP4498024B2 (ja) * 2004-06-15 2010-07-07 キヤノン株式会社 光学式エンコーダ

Also Published As

Publication number Publication date
US20060267822A1 (en) 2006-11-30
US7449678B2 (en) 2008-11-11
JP2006329818A (ja) 2006-12-07

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