JPH0442604B2 - - Google Patents

Info

Publication number
JPH0442604B2
JPH0442604B2 JP9896283A JP9896283A JPH0442604B2 JP H0442604 B2 JPH0442604 B2 JP H0442604B2 JP 9896283 A JP9896283 A JP 9896283A JP 9896283 A JP9896283 A JP 9896283A JP H0442604 B2 JPH0442604 B2 JP H0442604B2
Authority
JP
Japan
Prior art keywords
light
optical
laser beam
pulse
laser
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
Application number
JP9896283A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59224515A (ja
Inventor
Koichi Yamada
Seio Watanabe
Kazuo Nishi
Mutsuo Hirai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9896283A priority Critical patent/JPS59224515A/ja
Priority to DE19843420600 priority patent/DE3420600A1/de
Publication of JPS59224515A publication Critical patent/JPS59224515A/ja
Publication of JPH0442604B2 publication Critical patent/JPH0442604B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
    • H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
    • H03M1/301—Constructional details of parts relevant to the encoding mechanism, e.g. pattern carriers, pattern sensors
    • 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

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
JP9896283A 1983-06-03 1983-06-03 光学式エンコ−ダ Granted JPS59224515A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP9896283A JPS59224515A (ja) 1983-06-03 1983-06-03 光学式エンコ−ダ
DE19843420600 DE3420600A1 (de) 1983-06-03 1984-06-01 Optischer codierer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9896283A JPS59224515A (ja) 1983-06-03 1983-06-03 光学式エンコ−ダ

Publications (2)

Publication Number Publication Date
JPS59224515A JPS59224515A (ja) 1984-12-17
JPH0442604B2 true JPH0442604B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-07-14

Family

ID=14233692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9896283A Granted JPS59224515A (ja) 1983-06-03 1983-06-03 光学式エンコ−ダ

Country Status (2)

Country Link
JP (1) JPS59224515A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3420600A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733069A (en) * 1986-02-14 1988-03-22 Optec Co., Ltd. Position encoder using a laser scan beam
JP2508428B2 (ja) * 1986-10-03 1996-06-19 ソニー株式会社 光学式エンコ−ダ
GB2197146B (en) * 1986-11-04 1991-05-29 Canon Kk An encoder for detecting the displacement of an object to be measured
DE4220502C1 (de) * 1992-06-23 1993-12-16 Stegmann Max Antriebstech Drehwinkelmeßsystem
JPH10260007A (ja) * 1997-03-14 1998-09-29 Ricoh Co Ltd 相対位置検出装置
JP3672438B2 (ja) * 1998-07-08 2005-07-20 株式会社リコー 光学式エンコーダ装置
AU2000240414A1 (en) * 2000-03-28 2001-10-08 Aim Controls, Inc. Rotary encoder
US7532370B2 (en) 2002-12-02 2009-05-12 Ricoh Company, Ltd. Optical encoder, motor driver and image forming apparatus
DE10311412B3 (de) * 2003-03-13 2004-05-27 Lenord, Bauer & Co. Gmbh Verfahren zur Messung und Bestimmung der absoluten Position einer Geberwelle sowie einer Einrichtung zur Anwendung des Verfahrens
JP4863803B2 (ja) * 2006-07-28 2012-01-25 株式会社ミツトヨ 光学式エンコーダ
JP2009264778A (ja) * 2008-04-22 2009-11-12 Satoshi Kiyono 光スポット変位検出装置及び計測装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7100212A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-01-08 1972-07-11
DE2517176A1 (de) * 1975-04-18 1976-10-21 Espera Werke Gmbh Einstellvorrichtung fuer abtastvorrichtungen an merkmalskalen
US4096383A (en) * 1976-11-08 1978-06-20 Gilbert & Barker Manufacturing Company Pulse-generating apparatus responsive to shaft rotation
US4263506A (en) * 1978-12-21 1981-04-21 Hewlett-Packard Company Pulse generating apparatus
US4385234A (en) * 1980-11-25 1983-05-24 Bei Electronics, Inc. Optical systems for optical encoders
JPS57136118A (en) * 1981-02-17 1982-08-23 Ricoh Co Ltd Setting of phase difference in two sets of pulse trains of rotary encoder
GB2114834A (en) * 1982-02-12 1983-08-24 Solenoids And Regulators Limit Displacement encoder

Also Published As

Publication number Publication date
DE3420600A1 (de) 1984-12-13
DE3420600C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-09-07
JPS59224515A (ja) 1984-12-17

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