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IT1144232B - Trasduttore ottico - Google Patents

Trasduttore ottico

Info

Publication number
IT1144232B
IT1144232B IT67821/81A IT6782181A IT1144232B IT 1144232 B IT1144232 B IT 1144232B IT 67821/81 A IT67821/81 A IT 67821/81A IT 6782181 A IT6782181 A IT 6782181A IT 1144232 B IT1144232 B IT 1144232B
Authority
IT
Italy
Prior art keywords
optical transducer
transducer
optical
Prior art date
Application number
IT67821/81A
Other languages
English (en)
Other versions
IT8167821A0 (it
Inventor
Marcello Boella
Paolo Rivera
Original Assignee
Olivetti & Co Spa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Olivetti & Co Spa filed Critical Olivetti & Co Spa
Priority to IT67821/81A priority Critical patent/IT1144232B/it
Publication of IT8167821A0 publication Critical patent/IT8167821A0/it
Priority to BR8203482A priority patent/BR8203482A/pt
Priority to EP19820303086 priority patent/EP0067706B1/en
Priority to JP57102923A priority patent/JPS589022A/ja
Priority to DE8282303086T priority patent/DE3280307D1/de
Priority to US06/388,699 priority patent/US4496835A/en
Application granted granted Critical
Publication of IT1144232B publication Critical patent/IT1144232B/it

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
IT67821/81A 1981-06-15 1981-06-15 Trasduttore ottico IT1144232B (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT67821/81A IT1144232B (it) 1981-06-15 1981-06-15 Trasduttore ottico
BR8203482A BR8203482A (pt) 1981-06-15 1982-06-14 Transdutor otico e disco constituindo o mesmo
EP19820303086 EP0067706B1 (en) 1981-06-15 1982-06-15 Optical transducer
JP57102923A JPS589022A (ja) 1981-06-15 1982-06-15 光トランスジユ−サ
DE8282303086T DE3280307D1 (de) 1981-06-15 1982-06-15 Optischer messwertaufnehmer.
US06/388,699 US4496835A (en) 1981-06-15 1982-06-15 Shaft encoder with diffusely placed light sensitive elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67821/81A IT1144232B (it) 1981-06-15 1981-06-15 Trasduttore ottico

Publications (2)

Publication Number Publication Date
IT8167821A0 IT8167821A0 (it) 1981-06-15
IT1144232B true IT1144232B (it) 1986-10-29

Family

ID=11305537

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67821/81A IT1144232B (it) 1981-06-15 1981-06-15 Trasduttore ottico

Country Status (3)

Country Link
US (1) US4496835A (it)
JP (1) JPS589022A (it)
IT (1) IT1144232B (it)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654525A (en) * 1982-08-31 1987-03-31 Sharp Kabushiki Kaisha Optical rotary encoder
US4654524A (en) * 1982-09-20 1987-03-31 Shimadzu Corporation Method and apparatus for measuring a displacement of one member relative to another using a vernier with an even numbered difference of elements
JPS6047916A (ja) * 1983-08-26 1985-03-15 Fuji Electric Corp Res & Dev Ltd 回転数検出装置
JPS6047917A (ja) * 1983-08-26 1985-03-15 Fuji Electric Corp Res & Dev Ltd 回転角度検出装置
IT1160210B (it) * 1983-09-30 1987-03-04 Olivetti & Co Spa Trasduttore ottico per rilevare la posizione di un organo mobile rispetto ad una struttura fissa
JPS6076614A (ja) * 1983-10-03 1985-05-01 Sharp Corp 光電式エンコ−ダ
JPS60170211U (ja) * 1984-04-23 1985-11-12 関東自動車工業株式会社 車両用換気装置
IT1180106B (it) * 1984-11-05 1987-09-23 Olivetti & Co Spa Circuito per il pilotaggio dei motori elettrici di selezione tabulazione ed interlinea di una macchina per scrivere elettronica
JPS623617A (ja) * 1985-06-28 1987-01-09 Canon Inc 光学式スケ−ル
US4820918A (en) * 1985-06-28 1989-04-11 Canon Kabushiki Kaisha Optical encoder including transparent substrates having formed indicators therein
JPS625128A (ja) * 1985-07-01 1987-01-12 Canon Inc 光学式スケ−ル
JPS625129A (ja) * 1985-07-01 1987-01-12 Canon Inc 光学式スケ−ル
JPS62135724A (ja) * 1985-12-10 1987-06-18 Canon Inc 光学式スケ−ル
JPH0544732Y2 (it) * 1987-08-28 1993-11-15
DE3884747T2 (de) 1987-11-02 1994-01-27 Hitachi Ltd Lüftungsausrüstung für rollendes Material.
EP0523752A1 (en) 1987-11-02 1993-01-20 Hitachi, Ltd. Ventilating equipment for rolling stock
EP0365702A1 (de) * 1988-10-26 1990-05-02 Heimann Optoelectronics GmbH Digitaler Stellungsgeber
JPH03208766A (ja) * 1990-01-10 1991-09-11 Hitachi Ltd 車両用換気装置
US5680157A (en) 1992-08-10 1997-10-21 Logitech, Inc. Pointing device with differential optomechanical sensing
JP3170902B2 (ja) * 1992-09-30 2001-05-28 キヤノン株式会社 信号処理方法及びそれを用いたエンコーダ
JPH0584818U (ja) * 1993-04-08 1993-11-16 キヤノン株式会社 光学式スケール
US6563108B1 (en) 1999-10-25 2003-05-13 Quantum Devices, Inc. System for tracking angular and linear motion
US20050109924A1 (en) * 2003-11-26 2005-05-26 David Christenson Apparatus for encoding and indexing
US7943066B2 (en) * 2006-10-06 2011-05-17 The University Of New Brunswick Electrically conductive paper composite
TWI420083B (zh) * 2008-08-22 2013-12-21 Asia Optical Co Inc 電子裝置、偵測裝置及其編碼器
JP5574899B2 (ja) * 2010-09-24 2014-08-20 キヤノン株式会社 ロータリーエンコーダ及びこれを備えた光学機器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549897A (en) * 1968-04-04 1970-12-22 Dynamics Res Corp Absolute encoder having plurality of binarily related reticle tracks
US3757128A (en) * 1972-03-20 1973-09-04 Ibm Multiphase tachometer
JPS4942215U (it) * 1972-07-20 1974-04-13
JPS51864A (en) * 1974-06-20 1976-01-07 Hiroshi Hata Baranno riakutansukairoto antenasoshitono kyoshinoryoshitakogataantena
US4319134A (en) * 1978-06-16 1982-03-09 Sensor Technology, Inc. Optical encoder
SU769587A1 (ru) * 1978-07-31 1980-10-07 Саратовский политехнический институт Фотоэлектрический преобразователь перемещение-код
JPS57169612A (en) * 1981-04-13 1982-10-19 Tokyo Optical Co Ltd Photoelectric encoder

Also Published As

Publication number Publication date
US4496835A (en) 1985-01-29
IT8167821A0 (it) 1981-06-15
JPS589022A (ja) 1983-01-19

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