DK157956C - Laeseanordning til optisk aftastning af paa et bevaeget pladeformet baereorgan optegnede informationer - Google Patents

Laeseanordning til optisk aftastning af paa et bevaeget pladeformet baereorgan optegnede informationer

Info

Publication number
DK157956C
DK157956C DK337384A DK337384A DK157956C DK 157956 C DK157956 C DK 157956C DK 337384 A DK337384 A DK 337384A DK 337384 A DK337384 A DK 337384A DK 157956 C DK157956 C DK 157956C
Authority
DK
Denmark
Prior art keywords
reading device
information recorded
optical sensing
platform carrier
moved platform
Prior art date
Application number
DK337384A
Other languages
English (en)
Other versions
DK337384A (da
DK337384D0 (da
DK157956B (da
Inventor
Arthur Kurz
Hans-Robert Kuehn
Original Assignee
Thomson Brandt Gmbh
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 Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of DK337384D0 publication Critical patent/DK337384D0/da
Publication of DK337384A publication Critical patent/DK337384A/da
Publication of DK157956B publication Critical patent/DK157956B/da
Application granted granted Critical
Publication of DK157956C publication Critical patent/DK157956C/da

Links

Classifications

    • 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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0937—Piezoelectric actuators
    • 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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0929—Electromechanical actuators for lens positioning for tracking only
    • 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
    • G11B7/094—Methods and circuits for servo offset compensation
DK337384A 1983-07-09 1984-07-09 Laeseanordning til optisk aftastning af paa et bevaeget pladeformet baereorgan optegnede informationer DK157956C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3324861A DE3324861C2 (de) 1983-07-09 1983-07-09 Lesevorrichtung zum optischen Abtasten von auf einem bewegten plattenförmigen Träger aufgezeichneten Informationen
DE3324861 1983-07-09

Publications (4)

Publication Number Publication Date
DK337384D0 DK337384D0 (da) 1984-07-09
DK337384A DK337384A (da) 1985-01-10
DK157956B DK157956B (da) 1990-03-05
DK157956C true DK157956C (da) 1990-08-13

Family

ID=6203615

Family Applications (1)

Application Number Title Priority Date Filing Date
DK337384A DK157956C (da) 1983-07-09 1984-07-09 Laeseanordning til optisk aftastning af paa et bevaeget pladeformet baereorgan optegnede informationer

Country Status (5)

Country Link
US (1) US4718050A (da)
EP (2) EP0249653B1 (da)
JP (2) JPS6063734A (da)
DE (1) DE3324861C2 (da)
DK (1) DK157956C (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6095735A (ja) * 1983-10-31 1985-05-29 Hitachi Ltd 対物レンズ駆動装置
DE3500671A1 (de) * 1985-01-11 1986-07-17 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Lesevorrichtung zum optischen abtasten von auf einem beweglichen plattenfoermigen traeger aufgezeichneten informationen
JPH01201831A (ja) * 1988-02-05 1989-08-14 Olympus Optical Co Ltd 光学的情報記録再生装置
US5220543A (en) * 1989-02-14 1993-06-15 Victor Company Of Japan, Ltd. Compact optical disc recording/reproducing system
JP2593941B2 (ja) * 1989-08-19 1997-03-26 富士通株式会社 光ディスク装置のアクチュエータオフセット除去装置
DE4135908A1 (de) * 1991-10-31 1993-05-06 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen, De Aktuatoranordnung
US5724331A (en) * 1994-08-25 1998-03-03 Discovision Associates Disk drive system having improved cartridge-loading apparatus including direct drive gear train and methods for making and operating same
US6009061A (en) 1994-08-25 1999-12-28 Discovision Associates Cartridge-loading apparatus with improved base plate and cartridge receiver latch
KR0179258B1 (ko) * 1996-01-05 1999-04-15 구자홍 광디스크 기록재생장치
US6185030B1 (en) * 1998-03-20 2001-02-06 James W. Overbeck Wide field of view and high speed scanning microscopy

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282598A (en) * 1972-10-24 1981-08-04 Discovision Associates Video disc read back scanner
SE7405076L (sv) * 1974-04-16 1975-10-17 Erik Gerhard Natanel Westberg Optiskt massdataminne.
DE2611617C2 (de) * 1976-03-19 1983-10-20 Philips Patentverwaltung Gmbh, 2000 Hamburg Elektrisch gesteuerte Einstellvorrichtung für einen digital und analog ablenkgesteuerten Lichtstrahl
US4302830A (en) * 1978-05-10 1981-11-24 Olympus Optical Company Ltd. Optical information reading-out apparatus
NL7808638A (nl) * 1978-08-22 1980-02-26 Philips Nv Inrichting voor het uitlezen van een schijfvormige re- gistratiedrager.
NL7810386A (nl) * 1978-10-17 1980-04-21 Philips Nv Optische leesinrichting voor het uitlezen van een schijfvormige registratiedrager.
NL7812111A (nl) * 1978-12-13 1980-06-17 Philips Nv Inrichting voor het optisch uitlezen van een schijf- vormige registratiedrager, in het bijzonder het snel opzoeken van een gewenst programmagedeelte.
JPS55146634A (en) * 1979-04-26 1980-11-15 Olympus Optical Co Ltd Objective lens driver
JPS55153138A (en) * 1979-05-14 1980-11-28 Mitsubishi Electric Corp Optical pickup unit
JPS6030576B2 (ja) * 1979-08-21 1985-07-17 エヌエスケ−・ワ−ナ−株式会社 シ−トベルトリトラクタの巻取力軽減機構
JPS56170537U (da) 1980-05-16 1981-12-16
NL8003305A (nl) * 1980-06-06 1982-01-04 Philips Nv Inrichting voor het opzoeken van een gewenst informa- tiespoor.
JPS6215864Y2 (da) * 1980-08-04 1987-04-22
NL8103305A (nl) * 1981-07-10 1983-02-01 Philips Nv Opto-elektronische inrichting voor het met een stralingsbundel inschrijven en/of uitlezen van registratiesporen.
NL8105347A (nl) * 1981-11-26 1983-06-16 Philips Nv Inrichting voor het optisch aftasten van een schijfvormige registratiedrager.
JPS58166567A (ja) * 1982-03-26 1983-10-01 Matsushita Electric Ind Co Ltd 情報トラックの検索装置

Also Published As

Publication number Publication date
JPS6063734A (ja) 1985-04-12
US4718050A (en) 1988-01-05
EP0134428A1 (de) 1985-03-20
JPH0831214B2 (ja) 1996-03-27
EP0249653A3 (en) 1988-01-07
DE3324861C2 (de) 1986-02-13
DK337384A (da) 1985-01-10
DK337384D0 (da) 1984-07-09
DE3324861A1 (de) 1985-01-17
EP0249653A2 (de) 1987-12-23
EP0249653B1 (de) 1991-01-09
EP0134428B1 (de) 1988-01-27
DK157956B (da) 1990-03-05
JPH0644597A (ja) 1994-02-18

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Legal Events

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PBP Patent lapsed