DE69016639T2 - Positionsdetektor. - Google Patents

Positionsdetektor.

Info

Publication number
DE69016639T2
DE69016639T2 DE69016639T DE69016639T DE69016639T2 DE 69016639 T2 DE69016639 T2 DE 69016639T2 DE 69016639 T DE69016639 T DE 69016639T DE 69016639 T DE69016639 T DE 69016639T DE 69016639 T2 DE69016639 T2 DE 69016639T2
Authority
DE
Germany
Prior art keywords
position detector
detector
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 - Fee Related
Application number
DE69016639T
Other languages
English (en)
Other versions
DE69016639D1 (de
Inventor
Katsuharu Sato
Naoharu Yanagawa
Shoji Taniguchi
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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
Priority claimed from JP2027189A external-priority patent/JPH0782653B2/ja
Priority claimed from JP2027190A external-priority patent/JPH0782654B2/ja
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of DE69016639D1 publication Critical patent/DE69016639D1/de
Application granted granted Critical
Publication of DE69016639T2 publication Critical patent/DE69016639T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
    • 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
    • G01D5/28—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 deflection of beams of light, e.g. for direct optical indication
    • G01D5/30—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 deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
    • G01B2210/40—Caliper-like sensors
    • G01B2210/44—Caliper-like sensors with detectors on both sides of the object to be measured

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
DE69016639T 1990-02-08 1990-11-07 Positionsdetektor. Expired - Fee Related DE69016639T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2027189A JPH0782653B2 (ja) 1990-02-08 1990-02-08 位置検出器
JP2027190A JPH0782654B2 (ja) 1990-02-08 1990-02-08 位置検出器

Publications (2)

Publication Number Publication Date
DE69016639D1 DE69016639D1 (de) 1995-03-16
DE69016639T2 true DE69016639T2 (de) 1995-10-05

Family

ID=26365087

Family Applications (3)

Application Number Title Priority Date Filing Date
DE69028322T Expired - Fee Related DE69028322T2 (de) 1990-02-08 1990-11-07 Positionsdetektor
DE69016639T Expired - Fee Related DE69016639T2 (de) 1990-02-08 1990-11-07 Positionsdetektor.
DE69027454T Expired - Fee Related DE69027454T2 (de) 1990-02-08 1990-11-07 Positionsdetektor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69028322T Expired - Fee Related DE69028322T2 (de) 1990-02-08 1990-11-07 Positionsdetektor

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69027454T Expired - Fee Related DE69027454T2 (de) 1990-02-08 1990-11-07 Positionsdetektor

Country Status (3)

Country Link
US (1) US5162661A (de)
EP (3) EP0599806B1 (de)
DE (3) DE69028322T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0451330B1 (de) * 1990-03-28 1994-09-21 Landis & Gyr Technology Innovation AG Verfahren zur selbsttätigen Eichung oder Nacheichung von Messungen einer physikalischen Grösse
JP3016441B2 (ja) * 1990-09-25 2000-03-06 ソニー株式会社 ヘツド位置制御装置
DE4113842A1 (de) * 1991-04-27 1992-11-05 Deutsche Forsch Luft Raumfahrt Verfahren und einrichtung zur messung und bestimmung einer wegdifferenz in interferometern nach michelson
US5327082A (en) * 1992-01-13 1994-07-05 Valmet Automation (Canada) Ltd. On line electromagnetic web thickness measuring apparatus incorporating a servomechanism with optical distance measuring
JPH05334703A (ja) * 1992-05-29 1993-12-17 Matsushita Electric Ind Co Ltd ミラー移動量検出装置
US5369462A (en) * 1992-06-09 1994-11-29 Olympus Optical Co., Ltd. Inclination detecting apparatus and camera for detecting hand shake using the same
DE69425385T2 (de) * 1993-04-02 2001-02-15 Sony Corp Servosystem zum Fokussieren und Verfahren zum Ermöglichen der Erfassung eines Fokussierungsservosystems
JPH11273116A (ja) * 1998-03-20 1999-10-08 Fujitsu Ltd 光学的情報記憶装置
JP2000283709A (ja) 1999-03-29 2000-10-13 Ando Electric Co Ltd 移動体の位置検出装置と光干渉計
SG126688A1 (en) * 2002-01-15 2006-11-29 Inst Data Storage Active control system and method for reducing diskfluttering induced track misregistrations
AU2003230127A1 (en) * 2002-05-30 2003-12-19 Koninklijke Philips Electronics N.V. Small optical disk drive
DE10361161A1 (de) * 2003-12-22 2005-07-21 Voith Paper Patent Gmbh Messvorrichtung
DE102016200505A1 (de) * 2016-01-16 2017-07-20 Robert Bosch Gmbh Mikrospiegelvorrichtung
US11921344B2 (en) * 2020-01-20 2024-03-05 Lecc Technology Co., Ltd. Laser module

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT939097B (it) * 1970-11-06 1973-02-10 Cie Des Compreurs Perfezionamenti ai comparatori ottici a fibre ottiche
FR2399000A1 (fr) * 1977-07-27 1979-02-23 Sagem Capteur de proximite a guides dielectriques d'ondes optiques
US4358960A (en) * 1979-05-04 1982-11-16 Ladd Research Industries, Inc. Differential fiber optic proximity sensor
US4490617A (en) * 1979-11-26 1984-12-25 European Electronic Systems Limited Optical width measuring system using two cameras
JPS6049841B2 (ja) * 1980-07-16 1985-11-05 室蘭工業大学長 光学式非接触型検出装置
US4488813A (en) * 1982-04-29 1984-12-18 Mechanical Technology Incorporated Reflectivity compensating system for fiber optic sensor employing dual probes at a fixed gap differential
US4711577A (en) * 1985-03-08 1987-12-08 Mechanical Technology Incorporated Optical configuration of fiber optic sensor for symmetric dynamic response about the optical null
EP0228500B2 (de) * 1985-08-12 1994-12-28 Wilhelm Hegenscheidt Gesellschaft mbH Verfahren und Einrichtung zur berührungslosen Vermessung des Radprofils der Räder von Eisenbahnradsätzen
JPH0792925B2 (ja) * 1986-03-24 1995-10-09 株式会社日立製作所 光デイスク装置の光ヘツド
EP0319533A4 (en) * 1986-08-13 1991-09-11 The Broken Hill Proprietary Company Limited Determining a dimension of an article

Also Published As

Publication number Publication date
DE69027454T2 (de) 1997-01-23
EP0599807A1 (de) 1994-06-01
US5162661A (en) 1992-11-10
EP0599806A1 (de) 1994-06-01
DE69027454D1 (de) 1996-07-18
DE69016639D1 (de) 1995-03-16
EP0599807B1 (de) 1996-06-12
EP0447713A2 (de) 1991-09-25
EP0447713A3 (en) 1991-10-23
EP0447713B1 (de) 1995-02-01
EP0599806B1 (de) 1996-08-28
DE69028322T2 (de) 1997-03-20
DE69028322D1 (de) 1996-10-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee