JP2006329818A5 - - Google Patents

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Publication number
JP2006329818A5
JP2006329818A5 JP2005153964A JP2005153964A JP2006329818A5 JP 2006329818 A5 JP2006329818 A5 JP 2006329818A5 JP 2005153964 A JP2005153964 A JP 2005153964A JP 2005153964 A JP2005153964 A JP 2005153964A JP 2006329818 A5 JP2006329818 A5 JP 2006329818A5
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JP
Japan
Prior art keywords
signal
photodetector
sum
optical encoder
reference position
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.)
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Application number
JP2005153964A
Other languages
English (en)
Japanese (ja)
Other versions
JP4869628B2 (ja
JP2006329818A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2005153964A priority Critical patent/JP4869628B2/ja
Priority claimed from JP2005153964A external-priority 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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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 true JP2006329818A5 (enExample) 2008-07-03
JP4869628B2 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

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