DE69101393D1 - Kodierer. - Google Patents
Kodierer.Info
- Publication number
- DE69101393D1 DE69101393D1 DE91105597T DE69101393T DE69101393D1 DE 69101393 D1 DE69101393 D1 DE 69101393D1 DE 91105597 T DE91105597 T DE 91105597T DE 69101393 T DE69101393 T DE 69101393T DE 69101393 D1 DE69101393 D1 DE 69101393D1
- Authority
- DE
- Germany
- Prior art keywords
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2093514A JP3034899B2 (ja) | 1990-04-09 | 1990-04-09 | エンコーダ |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69101393D1 true DE69101393D1 (de) | 1994-04-21 |
DE69101393T2 DE69101393T2 (de) | 1994-11-17 |
Family
ID=14084452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69101393T Expired - Fee Related DE69101393T2 (de) | 1990-04-09 | 1991-04-09 | Kodierer. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5113071A (de) |
EP (1) | EP0451780B1 (de) |
JP (1) | JP3034899B2 (de) |
DE (1) | DE69101393T2 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3008641B2 (ja) * | 1992-01-31 | 2000-02-14 | キヤノン株式会社 | 変位検出装置 |
JPH0818152A (ja) * | 1994-06-30 | 1996-01-19 | Sony Corp | 光半導体装置及びその製造方法 |
EP0704514B1 (de) * | 1994-09-26 | 2000-01-26 | Sumitomo Chemical Company Limited | Optisch anisotroper Film |
GB2308441B (en) * | 1995-12-22 | 1999-09-01 | Ramar Technology Ltd | Rotation sensor |
JP2002228491A (ja) * | 2001-02-05 | 2002-08-14 | Mitsutoyo Corp | 光学式エンコーダ用発光光源装置 |
JP4093941B2 (ja) * | 2003-09-22 | 2008-06-04 | シャープ株式会社 | 速度計、変位計、振動計および電子機器 |
JP4142528B2 (ja) * | 2003-08-08 | 2008-09-03 | シャープ株式会社 | 速度計、変位計および振動計 |
JP4924884B2 (ja) * | 2006-05-19 | 2012-04-25 | 株式会社ニコン | エンコーダ |
US7601947B2 (en) | 2006-05-19 | 2009-10-13 | Nikon Corporation | Encoder that optically detects positional information of a scale |
JP4962773B2 (ja) * | 2007-02-05 | 2012-06-27 | 株式会社ニコン | エンコーダ |
US7864336B2 (en) * | 2008-04-28 | 2011-01-04 | Agilent Technologies, Inc. | Compact Littrow encoder |
JP5542071B2 (ja) * | 2011-01-26 | 2014-07-09 | 日本電信電話株式会社 | 光集積回路 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3819274A (en) * | 1972-02-22 | 1974-06-25 | Genevoise Instr Physique | Method of reading and interpolation for a precision rule and apparatus for carrying it out |
US3818274A (en) * | 1973-03-29 | 1974-06-18 | Gte Automatic Electric Lab Inc | Remote sensing voltage clamping circuit |
FR2235354A1 (en) * | 1973-06-29 | 1975-01-24 | Thomson Csf | Photoelectric optical test sensor - measures displacement of a diffraction screen with constant spacing in the test sensor plane |
JPS57135313A (en) * | 1981-02-16 | 1982-08-20 | Fanuc Ltd | Pulse encoder |
JPS58225684A (ja) * | 1982-06-24 | 1983-12-27 | Agency Of Ind Science & Technol | 半導体レ−ザ装置 |
JPS6212814A (ja) * | 1985-07-10 | 1987-01-21 | Canon Inc | ロ−タリ−エンコ−ダ− |
DE3702314C1 (de) * | 1987-01-27 | 1988-01-14 | Heidenhain Gmbh Dr Johannes | Lichtelektrische Messeinrichtung |
US4883955A (en) * | 1987-02-25 | 1989-11-28 | Asahi Kogaku Kogyo K.K. | Optical encoder with converging means |
US4899048A (en) * | 1987-04-27 | 1990-02-06 | Printware, Inc. | Focused optical beam encoder of position |
JPH0718714B2 (ja) * | 1988-05-10 | 1995-03-06 | キヤノン株式会社 | エンコーダー |
US5003600A (en) * | 1989-08-03 | 1991-03-26 | The United States Of America As Represented By The Department Of Energy | Diffraction gratings used as identifying markers |
-
1990
- 1990-04-09 JP JP2093514A patent/JP3034899B2/ja not_active Expired - Lifetime
-
1991
- 1991-04-08 US US07/682,144 patent/US5113071A/en not_active Expired - Lifetime
- 1991-04-09 DE DE69101393T patent/DE69101393T2/de not_active Expired - Fee Related
- 1991-04-09 EP EP91105597A patent/EP0451780B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0451780A1 (de) | 1991-10-16 |
DE69101393T2 (de) | 1994-11-17 |
US5113071A (en) | 1992-05-12 |
JP3034899B2 (ja) | 2000-04-17 |
EP0451780B1 (de) | 1994-03-16 |
JPH03291523A (ja) | 1991-12-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |