PH27211A - Optical rotation detector including a disk having slits with concave and convex parts and method of manufacturing - Google Patents

Optical rotation detector including a disk having slits with concave and convex parts and method of manufacturing

Info

Publication number
PH27211A
PH27211A PH39827A PH39827A PH27211A PH 27211 A PH27211 A PH 27211A PH 39827 A PH39827 A PH 39827A PH 39827 A PH39827 A PH 39827A PH 27211 A PH27211 A PH 27211A
Authority
PH
Philippines
Prior art keywords
slits
concave
disk
manufacturing
optical rotation
Prior art date
Application number
PH39827A
Other languages
English (en)
Inventor
Ryoichi Kurosawa
Kozo Taira
Original Assignee
Toshiba Kk
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
Priority claimed from JP64000017A external-priority patent/JP2567934B2/ja
Priority claimed from JP64000015A external-priority patent/JPH076812B2/ja
Priority claimed from JP1002929A external-priority patent/JPH02184719A/ja
Application filed by Toshiba Kk filed Critical Toshiba Kk
Publication of PH27211A publication Critical patent/PH27211A/en

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
    • G01D5/347—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 using displacement encoding scales
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
PH39827A 1989-01-04 1989-12-29 Optical rotation detector including a disk having slits with concave and convex parts and method of manufacturing PH27211A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP64000017A JP2567934B2 (ja) 1989-01-04 1989-01-04 回転検出装置
JP64000015A JPH076812B2 (ja) 1989-01-04 1989-01-04 回転検出装置に用いる回転円盤の製造方法
JP1002929A JPH02184719A (ja) 1989-01-11 1989-01-11 回転検出装置

Publications (1)

Publication Number Publication Date
PH27211A true PH27211A (en) 1993-05-04

Family

ID=27274268

Family Applications (1)

Application Number Title Priority Date Filing Date
PH39827A PH27211A (en) 1989-01-04 1989-12-29 Optical rotation detector including a disk having slits with concave and convex parts and method of manufacturing

Country Status (4)

Country Link
US (1) US5057685A (de)
EP (1) EP0380810B1 (de)
DE (1) DE68905591T2 (de)
PH (1) PH27211A (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005456A1 (en) * 1995-07-25 1997-02-13 The Regents Of The University Of California Compact disc based high-precision optical shaft encoder
US6081339A (en) 1997-05-29 2000-06-27 Aim Controls, Inc. Method and apparatus for measuring the direction and position of rotating bodies
AU743409B2 (en) * 1997-10-17 2002-01-24 Bishop Innovation Limited Method for manufacture of optical torque transducers
JP2001520395A (ja) 1997-10-17 2001-10-30 ビショップ イノヴェーション リミテッド 光学トルクトランスデュサーの製造方法
US6039747A (en) * 1998-04-08 2000-03-21 Shturman Cardiology Systems, Inc. Rotational atherectomy device with improved optical tachometer
GB0127410D0 (en) 2001-11-15 2002-01-09 Renishaw Plc Laser substrate treatment
GB0201101D0 (en) 2002-01-18 2002-03-06 Renishaw Plc Laser marking
WO2005038053A1 (en) * 2003-10-18 2005-04-28 Nanostorage Co., Ltd. Biochip analysis system and diagnosis system having biochip analysis apparatus
KR100640153B1 (ko) * 2004-05-03 2006-10-31 (주)나노스토리지 바이오 셀 패턴화 장치
US20100282955A1 (en) * 2009-05-07 2010-11-11 Nikon Corporation Sealed rotary measurement system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360660A (en) * 1965-04-07 1967-12-26 Gen Motors Corp Position and rate readout system with dual phase-displaced gratings
DE1623768B1 (de) * 1967-07-04 1971-09-23 Leitz Ernst Gmbh Fotoelektrische einrichtung
US4222070A (en) * 1978-03-13 1980-09-09 Eastman Kodak Company Recording video information on a flexible master disc
JPH0246366B2 (de) * 1980-08-11 1990-10-15 Discovision Ass
DE3036005A1 (de) * 1980-09-24 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Verfahren zur herstellung einer codescheibe fuer optische winkelschrittgeber bzw. winkelcodierer
JPS57149912A (en) * 1981-03-13 1982-09-16 Nippon Telegr & Teleph Corp <Ntt> Optical position detector
JPS58501885A (ja) * 1981-11-09 1983-11-04 バロ−ス・コ−ポレ−ション ディジタルデ−タストレ−ジのための記録保管記録媒体のための形成技術
DE3374430D1 (en) * 1982-09-25 1987-12-17 Renishaw Plc Displacement measuring apparatus
JPS6070311A (ja) * 1983-09-27 1985-04-22 Mitsubishi Electric Corp 光学式エンコ−ダ
JPS60118912U (ja) * 1984-01-18 1985-08-12 アルプス電気株式会社 反射型光学式ロ−タリエンコ−ダのコ−ドホイ−ル
JPS60134117U (ja) * 1984-02-16 1985-09-06 アルプス電気株式会社 光学式ロ−タリエンコ−ダ
JPS61176817A (ja) * 1985-01-31 1986-08-08 Foster Denki Kk エンコ−ダ
JPS6255511A (ja) * 1985-09-05 1987-03-11 Sharp Corp ロ−タリ−エンコ−ダ
US4780610A (en) * 1986-03-04 1988-10-25 Alps Electric Co., Ltd. Optical rotary encoder having superposed metal plate and shield plate

Also Published As

Publication number Publication date
DE68905591T2 (de) 1993-08-19
EP0380810B1 (de) 1993-03-24
DE68905591D1 (de) 1993-04-29
US5057685A (en) 1991-10-15
EP0380810A3 (en) 1990-12-27
EP0380810A2 (de) 1990-08-08

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