JP2016014620A5 - - Google Patents
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- Publication number
- JP2016014620A5 JP2016014620A5 JP2014137473A JP2014137473A JP2016014620A5 JP 2016014620 A5 JP2016014620 A5 JP 2016014620A5 JP 2014137473 A JP2014137473 A JP 2014137473A JP 2014137473 A JP2014137473 A JP 2014137473A JP 2016014620 A5 JP2016014620 A5 JP 2016014620A5
- Authority
- JP
- Japan
- Prior art keywords
- signal
- scale
- detection
- range
- position detection
- 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
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- 238000001514 detection method Methods 0.000 claims description 30
- 230000005856 abnormality Effects 0.000 claims description 9
- 230000000737 periodic effect Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims 2
- 230000003287 optical effect Effects 0.000 claims 2
- 238000003384 imaging method Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 1
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014137473A JP6408804B2 (ja) | 2014-07-03 | 2014-07-03 | 位置検出装置及びそれを有するレンズ装置及び撮影装置 |
| EP15001886.9A EP2963390B1 (en) | 2014-07-03 | 2015-06-25 | Position detector, and lens apparatus and image pickup apparatus including the position detector |
| US14/754,895 US9995603B2 (en) | 2014-07-03 | 2015-06-30 | Position detector, and lens apparatus and image pickup apparatus including the position detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014137473A JP6408804B2 (ja) | 2014-07-03 | 2014-07-03 | 位置検出装置及びそれを有するレンズ装置及び撮影装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016014620A JP2016014620A (ja) | 2016-01-28 |
| JP2016014620A5 true JP2016014620A5 (enExample) | 2017-08-17 |
| JP6408804B2 JP6408804B2 (ja) | 2018-10-17 |
Family
ID=53491250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014137473A Active JP6408804B2 (ja) | 2014-07-03 | 2014-07-03 | 位置検出装置及びそれを有するレンズ装置及び撮影装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9995603B2 (enExample) |
| EP (1) | EP2963390B1 (enExample) |
| JP (1) | JP6408804B2 (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6533360B2 (ja) * | 2013-10-30 | 2019-06-19 | キヤノン株式会社 | 位置検出装置及びそれを有するレンズ装置及び撮影装置 |
| US10615796B2 (en) * | 2016-07-29 | 2020-04-07 | Qualcomm Incorporated | Level shifter |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002039727A (ja) | 2000-07-21 | 2002-02-06 | Asahi Precision Co Ltd | アブソリュートエンコーダを備えた測角装置 |
| US6898744B1 (en) * | 2001-11-01 | 2005-05-24 | Louis J. Jannotta | Apparatus and methods for monitoring encoder signals |
| JP5887064B2 (ja) * | 2010-04-28 | 2016-03-16 | 株式会社ミツトヨ | 光学式エンコーダ |
| US8493572B2 (en) * | 2010-05-05 | 2013-07-23 | Mitutoyo Corporation | Optical encoder having contamination and defect resistant signal processing |
| JP5375796B2 (ja) * | 2010-11-05 | 2013-12-25 | 株式会社デンソー | 回転角検出装置、および、これを用いた電動パワーステアリング装置 |
| JP5791340B2 (ja) * | 2011-04-14 | 2015-10-07 | キヤノン株式会社 | エンコーダ |
| EP2600113B1 (de) * | 2011-11-29 | 2018-01-10 | SICK STEGMANN GmbH | Verfahren und Vorrichtung zur Messung des Drehwinkels zweier relativ zueinander rotierender Objekte |
| JP5727958B2 (ja) * | 2012-03-19 | 2015-06-03 | 旭化成エレクトロニクス株式会社 | 磁場計測装置の異常検出装置 |
| JP6150462B2 (ja) * | 2012-05-02 | 2017-06-21 | キヤノン株式会社 | 位置検出エンコーダおよびこれを用いた装置 |
| JP6207208B2 (ja) * | 2013-04-12 | 2017-10-04 | キヤノン株式会社 | 位置検出手段 |
-
2014
- 2014-07-03 JP JP2014137473A patent/JP6408804B2/ja active Active
-
2015
- 2015-06-25 EP EP15001886.9A patent/EP2963390B1/en active Active
- 2015-06-30 US US14/754,895 patent/US9995603B2/en active Active
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