JP2021193354A5 - - Google Patents
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- Publication number
- JP2021193354A5 JP2021193354A5 JP2020099491A JP2020099491A JP2021193354A5 JP 2021193354 A5 JP2021193354 A5 JP 2021193354A5 JP 2020099491 A JP2020099491 A JP 2020099491A JP 2020099491 A JP2020099491 A JP 2020099491A JP 2021193354 A5 JP2021193354 A5 JP 2021193354A5
- Authority
- JP
- Japan
- Prior art keywords
- receiving element
- light receiving
- light
- diffraction grating
- optical encoder
- 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.)
- Granted
Links
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020099491A JP7475973B2 (ja) | 2020-06-08 | 2020-06-08 | 光学式エンコーダ及び制御装置 |
| US17/337,918 US11946780B2 (en) | 2020-06-08 | 2021-06-03 | Optical encoder and control apparatus |
| GB2108112.0A GB2596916B (en) | 2020-06-08 | 2021-06-07 | Optical encoder and control apparatus |
| DE102021114506.6A DE102021114506A1 (de) | 2020-06-08 | 2021-06-07 | Optischer Encoder und Steuergerät |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020099491A JP7475973B2 (ja) | 2020-06-08 | 2020-06-08 | 光学式エンコーダ及び制御装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2021193354A JP2021193354A (ja) | 2021-12-23 |
| JP2021193354A5 true JP2021193354A5 (enExample) | 2023-06-08 |
| JP7475973B2 JP7475973B2 (ja) | 2024-04-30 |
Family
ID=76838741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020099491A Active JP7475973B2 (ja) | 2020-06-08 | 2020-06-08 | 光学式エンコーダ及び制御装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11946780B2 (enExample) |
| JP (1) | JP7475973B2 (enExample) |
| DE (1) | DE102021114506A1 (enExample) |
| GB (1) | GB2596916B (enExample) |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8101669A (nl) * | 1981-04-03 | 1982-11-01 | Philips Nv | Inrichting voor het detekteren van de stand van een voorwerp. |
| JPH0755457Y2 (ja) * | 1991-05-13 | 1995-12-20 | 株式会社ミツトヨ | 光電型エンコーダ |
| DE69320716T3 (de) | 1992-06-30 | 2011-05-19 | Canon K.K. | Gerät zur Detektion von Verschiebungsinformation |
| JP3028716B2 (ja) * | 1993-09-29 | 2000-04-04 | キヤノン株式会社 | 光学式変位センサ |
| US6229140B1 (en) * | 1995-10-27 | 2001-05-08 | Canon Kabushiki Kaisha | Displacement information detection apparatus |
| JP4473975B2 (ja) | 1999-04-16 | 2010-06-02 | キヤノン株式会社 | エンコーダ |
| EP1045227B2 (en) * | 1999-04-16 | 2012-04-18 | Canon Kabushiki Kaisha | Encoder |
| JP4981203B2 (ja) * | 2000-08-01 | 2012-07-18 | オリンパス株式会社 | 光学式エンコーダー |
| GB0103582D0 (en) * | 2001-02-14 | 2001-03-28 | Renishaw Plc | Position determination system |
| JP2004212243A (ja) * | 2003-01-06 | 2004-07-29 | Canon Inc | 格子干渉型光学式エンコーダ |
| JP4869628B2 (ja) | 2005-05-26 | 2012-02-08 | オリンパス株式会社 | 光学式エンコーダ |
| JP4724495B2 (ja) * | 2005-08-29 | 2011-07-13 | キヤノン株式会社 | 光学式エンコーダ |
| US7608813B1 (en) * | 2008-11-18 | 2009-10-27 | Mitutoyo Corporation | Scale track configuration for absolute optical encoder including a detector electronics with plurality of track detector portions |
| WO2015049173A1 (en) * | 2013-10-01 | 2015-04-09 | Renishaw Plc | Reference mark detector arrangement |
| JP6487724B2 (ja) * | 2014-03-14 | 2019-03-20 | キヤノンプレシジョン株式会社 | エンコーダ |
| DE102014212268A1 (de) * | 2014-06-26 | 2016-01-14 | Dr. Johannes Heidenhain Gmbh | Positionsmesseinrichtung |
| JP6437802B2 (ja) * | 2014-11-28 | 2018-12-12 | 株式会社ミツトヨ | 光学式エンコーダ |
| 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 |
| JP6440609B2 (ja) * | 2015-01-16 | 2018-12-19 | 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、工作装置、露光装置、位置検出方法、プログラム、記憶媒体 |
| EP3064903B1 (en) | 2015-03-06 | 2018-06-13 | Canon Precision Inc. | Encoder |
| JP6400036B2 (ja) * | 2016-03-14 | 2018-10-03 | キヤノン株式会社 | 位置検出装置、工作装置、および、露光装置 |
-
2020
- 2020-06-08 JP JP2020099491A patent/JP7475973B2/ja active Active
-
2021
- 2021-06-03 US US17/337,918 patent/US11946780B2/en active Active
- 2021-06-07 GB GB2108112.0A patent/GB2596916B/en active Active
- 2021-06-07 DE DE102021114506.6A patent/DE102021114506A1/de active Pending
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