DE3473646D1 - Optical position transducer - Google Patents
Optical position transducerInfo
- Publication number
- DE3473646D1 DE3473646D1 DE8484306491T DE3473646T DE3473646D1 DE 3473646 D1 DE3473646 D1 DE 3473646D1 DE 8484306491 T DE8484306491 T DE 8484306491T DE 3473646 T DE3473646 T DE 3473646T DE 3473646 D1 DE3473646 D1 DE 3473646D1
- Authority
- DE
- Germany
- Prior art keywords
- position transducer
- optical position
- optical
- transducer
- 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
Links
- 230000003287 optical effect Effects 0.000 title 1
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Microscoopes, Condenser (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT68006/83A IT1160210B (it) | 1983-09-30 | 1983-09-30 | Trasduttore ottico per rilevare la posizione di un organo mobile rispetto ad una struttura fissa |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3473646D1 true DE3473646D1 (en) | 1988-09-29 |
Family
ID=11307136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484306491T Expired DE3473646D1 (en) | 1983-09-30 | 1984-09-24 | Optical position transducer |
Country Status (10)
Country | Link |
---|---|
US (1) | US4650993A (de) |
EP (1) | EP0143525B2 (de) |
JP (1) | JPS6097214A (de) |
AU (1) | AU580008B2 (de) |
BR (1) | BR8404897A (de) |
CA (1) | CA1226921A (de) |
DE (1) | DE3473646D1 (de) |
ES (1) | ES536387A0 (de) |
IT (1) | IT1160210B (de) |
MX (1) | MX156118A (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3616144A1 (de) * | 1986-05-14 | 1987-11-19 | Heidenhain Gmbh Dr Johannes | Fotoelektrische messeinrichtung |
JPH0249244A (ja) * | 1988-05-24 | 1990-02-19 | Clarion Co Ltd | テープ巻込み検出装置 |
JPH02176418A (ja) * | 1988-12-28 | 1990-07-09 | Fanuc Ltd | パルスエンコーダにおける固定スリット板のスリット配設構造 |
JP2785195B2 (ja) * | 1989-01-11 | 1998-08-13 | ソニー株式会社 | ディスク装置の光学式エンコーダ |
US4965446A (en) * | 1989-04-20 | 1990-10-23 | Ivac Corporation | Optical interrupter system with vibration compensation |
DE3942178A1 (de) * | 1989-08-08 | 1991-02-21 | Heidenhain Gmbh Dr Johannes | Laengen- oder winkelmesseinrichtung |
US5001336A (en) * | 1989-12-11 | 1991-03-19 | The Boeing Company | Optical signal summing device |
US5274229A (en) * | 1991-06-11 | 1993-12-28 | Hewlett-Packard Company | Absolute position encoder |
EP0543513B2 (de) * | 1991-11-06 | 2007-10-24 | Renishaw Transducer Systems Limited | Opto-elektronischer Skalenleseapparat |
GB9522491D0 (en) * | 1995-11-02 | 1996-01-03 | Renishaw Plc | Opto-electronic rotary encoder |
US6635863B1 (en) * | 1999-08-06 | 2003-10-21 | Mitutoyo Corporation | Optical encoder |
US6563108B1 (en) * | 1999-10-25 | 2003-05-13 | Quantum Devices, Inc. | System for tracking angular and linear motion |
ES2166717B1 (es) * | 2000-06-15 | 2003-04-16 | Fagor S Coop | Disposicion optoelectronica de fotodetectores para la medicion de longitud. |
CN100535605C (zh) * | 2003-05-16 | 2009-09-02 | 三丰株式会社 | 光电式编码器 |
JP4476682B2 (ja) * | 2003-05-16 | 2010-06-09 | 株式会社ミツトヨ | 光電式エンコーダ |
TWI232631B (en) * | 2004-03-09 | 2005-05-11 | Delta Electronics Inc | Rotary optical encoder |
EP1640693A1 (de) * | 2004-09-28 | 2006-03-29 | FAGOR, S.Coop | Optischer Positionssensor mit drei Photodetektoren |
DE102005009043A1 (de) * | 2005-02-22 | 2006-08-31 | Dr. Johannes Heidenhain Gmbh | Abtasteinheit für eine Positionsmesseinrichtung |
US20070241269A1 (en) * | 2006-04-14 | 2007-10-18 | Saidan Saiful B | Optical encoders having improved resolution |
DE102012018458A1 (de) * | 2012-09-19 | 2014-03-20 | Prema Semiconductor Gmbh | Vorrichtung zur Erfassung von Winkel- oder Lageänderungen |
US11237024B2 (en) * | 2018-10-08 | 2022-02-01 | Pixart Imaging Inc. | Optical encoder with covered photo diode |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3757128A (en) * | 1972-03-20 | 1973-09-04 | Ibm | Multiphase tachometer |
DE2649898A1 (de) * | 1976-10-29 | 1978-05-03 | Parras Karl Heinz Dipl Ing | Optoelektronischer weg- und winkelgeber |
US4224514A (en) * | 1978-06-16 | 1980-09-23 | Sensor Technology, Inc. | Optical encoder |
JPS5550117A (en) * | 1978-10-06 | 1980-04-11 | Fanuc Ltd | Led light source device for pulse encoder |
IT1165711B (it) | 1979-09-27 | 1987-04-22 | Olivetti & Co Spa | Trasduttore ottico per rilevare la posizione angolare di un organo rotante rispetto ad una struttura fissa |
IT1144232B (it) * | 1981-06-15 | 1986-10-29 | Olivetti & Co Spa | Trasduttore ottico |
BR8203482A (pt) * | 1981-06-15 | 1983-06-07 | Olivetti & Co Spa | Transdutor otico e disco constituindo o mesmo |
-
1983
- 1983-09-30 IT IT68006/83A patent/IT1160210B/it active
-
1984
- 1984-09-19 US US06/652,098 patent/US4650993A/en not_active Expired - Fee Related
- 1984-09-24 DE DE8484306491T patent/DE3473646D1/de not_active Expired
- 1984-09-24 CA CA000463883A patent/CA1226921A/en not_active Expired
- 1984-09-24 EP EP84306491A patent/EP0143525B2/de not_active Expired - Lifetime
- 1984-09-26 AU AU33553/84A patent/AU580008B2/en not_active Ceased
- 1984-09-28 BR BR8404897A patent/BR8404897A/pt not_active IP Right Cessation
- 1984-09-28 MX MX202877A patent/MX156118A/es unknown
- 1984-09-28 ES ES536387A patent/ES536387A0/es active Granted
- 1984-10-01 JP JP59206130A patent/JPS6097214A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
AU580008B2 (en) | 1988-12-22 |
EP0143525B2 (de) | 1993-12-29 |
ES8601566A1 (es) | 1985-10-16 |
JPS6097214A (ja) | 1985-05-31 |
US4650993A (en) | 1987-03-17 |
AU3355384A (en) | 1985-04-04 |
IT8368006A0 (it) | 1983-09-30 |
EP0143525B1 (de) | 1988-08-24 |
MX156118A (es) | 1988-07-12 |
EP0143525A1 (de) | 1985-06-05 |
BR8404897A (pt) | 1985-08-20 |
CA1226921A (en) | 1987-09-15 |
ES536387A0 (es) | 1985-10-16 |
IT1160210B (it) | 1987-03-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8366 | Restricted maintained after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |