KR910008384A - 부호기 - Google Patents

부호기 Download PDF

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Publication number
KR910008384A
KR910008384A KR1019900017062A KR900017062A KR910008384A KR 910008384 A KR910008384 A KR 910008384A KR 1019900017062 A KR1019900017062 A KR 1019900017062A KR 900017062 A KR900017062 A KR 900017062A KR 910008384 A KR910008384 A KR 910008384A
Authority
KR
South Korea
Prior art keywords
light
light emitting
light receiving
coder
encoder
Prior art date
Application number
KR1019900017062A
Other languages
English (en)
Other versions
KR930011891B1 (ko
Inventor
노리오 오쿠타니
Original Assignee
다니이 아끼오
마쯔시다덴기산교 가부시기가이샤
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 다니이 아끼오, 마쯔시다덴기산교 가부시기가이샤 filed Critical 다니이 아끼오
Publication of KR910008384A publication Critical patent/KR910008384A/ko
Application granted granted Critical
Publication of KR930011891B1 publication Critical patent/KR930011891B1/ko

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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
    • 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
    • H03M1/245—Constructional details of parts relevant to the encoding mechanism, e.g. pattern carriers, pattern sensors
    • 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
    • H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
    • H03M1/143—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit in pattern-reading type converters, e.g. having both absolute and incremental tracks on one disc or strip

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

내용 없음.

Description

부호기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 제1실시예에 있어서의 부호기의 요부의 개략구성을 표시한 부분단면 정면도,
제2도는 본 발명의 제2실시예에 있어서의 부호기의 요부의 개략구성을 표시한 부분단면측면도,
제3도는 부호기의 코우드판의 일예를 표시한 평면도,

Claims (2)

  1. 발광소자와 슬리트열을 형성한 코우드판과 수광소자를 갖추고, 또한 복수의 발광소자와 수광소자에 의해서 위상차를 가진 복수신호를 얻도록 한 부호기에 있어서, 1쌍의 발광소자를 코우드판의 양쪽에 서로 대략 대향해서 배치하고, 이들 발광소자에 대응하는 1쌍의 수광소자를 각각 코우드판의 반대쪽에 또한 서로 대략 대향해서 배치하고, 동일 슬리트를 통과한 광에 의해서 위상차를 가진 1쌍의 검출신호를 얻도록 한 것을 특징으로 하는 부호기.
  2. 복수열의 부호화패턴을 형성한 코우드판과, 각 부호화패턴에 대응해서 코우드판의 양쪽에 서로 대향해서 배치된 복수의 발광소자와 수광소자를 구비한 부호기에 있어서, 코우드판의 양쪽에서 각각 발광소자와 수광소자를 교호로 또한 코우드판을 사이에 두고 발광소자와 수광소자가 서로 대향하도록 배치한 것을 특징으로 하는 부호기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900017062A 1989-10-25 1990-10-24 부호기 KR930011891B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1-279344 1989-10-25
JP1279344A JPH03140820A (ja) 1989-10-25 1989-10-25 エンコーダ

Publications (2)

Publication Number Publication Date
KR910008384A true KR910008384A (ko) 1991-05-31
KR930011891B1 KR930011891B1 (ko) 1993-12-22

Family

ID=17609868

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900017062A KR930011891B1 (ko) 1989-10-25 1990-10-24 부호기

Country Status (3)

Country Link
US (1) US5126736A (ko)
JP (1) JPH03140820A (ko)
KR (1) KR930011891B1 (ko)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995005707A1 (en) * 1991-06-06 1995-02-23 Trj & Company Absolute encoder using multiphase analog signals
US5506579A (en) * 1991-06-06 1996-04-09 Trj & Company Absolute encoder using multiphase analog signals
US6396052B1 (en) 2000-04-07 2002-05-28 Lexmark International, Inc. High precision analog encoder system
US7246030B2 (en) * 2002-02-14 2007-07-17 Faro Technologies, Inc. Portable coordinate measurement machine with integrated line laser scanner
USRE42082E1 (en) 2002-02-14 2011-02-01 Faro Technologies, Inc. Method and apparatus for improving measurement accuracy of a portable coordinate measurement machine
US6973734B2 (en) * 2002-02-14 2005-12-13 Faro Technologies, Inc. Method for providing sensory feedback to the operator of a portable measurement machine
US7519493B2 (en) * 2002-02-14 2009-04-14 Faro Technologies, Inc. Portable coordinate measurement machine with integrated line laser scanner
AU2003223173A1 (en) 2002-02-14 2003-09-04 Faro Technologies, Inc. Portable coordinate measurement machine with integrated line laser scanner
US6957496B2 (en) 2002-02-14 2005-10-25 Faro Technologies, Inc. Method for improving measurement accuracy of a portable coordinate measurement machine
US7881896B2 (en) 2002-02-14 2011-02-01 Faro Technologies, Inc. Portable coordinate measurement machine with integrated line laser scanner
US6952882B2 (en) * 2002-02-14 2005-10-11 Faro Technologies, Inc. Portable coordinate measurement machine
US9013681B2 (en) * 2007-11-06 2015-04-21 Nikon Corporation Movable body apparatus, pattern formation apparatus and exposure apparatus, and device manufacturing method
US9256140B2 (en) * 2007-11-07 2016-02-09 Nikon Corporation Movable body apparatus, pattern formation apparatus and exposure apparatus, and device manufacturing method with measurement device to measure movable body in Z direction
US8665455B2 (en) * 2007-11-08 2014-03-04 Nikon Corporation Movable body apparatus, pattern formation apparatus and exposure apparatus, and device manufacturing method
US8422015B2 (en) * 2007-11-09 2013-04-16 Nikon Corporation Movable body apparatus, pattern formation apparatus and exposure apparatus, and device manufacturing method
TWI451089B (zh) * 2009-11-12 2014-09-01 Pixart Imaging Inc 光學式偵測方法、光學式微機電偵測計、及其製法
US8368005B2 (en) * 2009-11-30 2013-02-05 Pixart Imaging Incorporation Optical detection method and optical MEMS detector, and method for making MEMS detector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57169611A (en) * 1981-04-13 1982-10-19 Tokyo Optical Co Ltd Measuring device for angular displacement
US4680466A (en) * 1984-04-20 1987-07-14 Yokogawa Hokushin Electric Corporation Displacement transducer which simultaneously extracts signals via sequential switching
US4990932A (en) * 1989-09-26 1991-02-05 Xerox Corporation Ink droplet sensors for ink jet printers
US5021781A (en) * 1989-10-18 1991-06-04 Pitney Bowes Inc. Two stage quadrature incremental encoder

Also Published As

Publication number Publication date
JPH03140820A (ja) 1991-06-14
US5126736A (en) 1992-06-30
KR930011891B1 (ko) 1993-12-22

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