NL7801528A - Optisch weergeefstelsel. - Google Patents

Optisch weergeefstelsel.

Info

Publication number
NL7801528A
NL7801528A NL7801528A NL7801528A NL7801528A NL 7801528 A NL7801528 A NL 7801528A NL 7801528 A NL7801528 A NL 7801528A NL 7801528 A NL7801528 A NL 7801528A NL 7801528 A NL7801528 A NL 7801528A
Authority
NL
Netherlands
Prior art keywords
display system
optical display
optical
display
Prior art date
Application number
NL7801528A
Other languages
English (en)
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
Publication of NL7801528A publication Critical patent/NL7801528A/nl

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
    • G11B7/0901—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 for track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)
NL7801528A 1977-02-09 1978-02-09 Optisch weergeefstelsel. NL7801528A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1358377A JPS5398802A (en) 1977-02-09 1977-02-09 Optical reproducer

Publications (1)

Publication Number Publication Date
NL7801528A true NL7801528A (nl) 1978-08-11

Family

ID=11837192

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7801528A NL7801528A (nl) 1977-02-09 1978-02-09 Optisch weergeefstelsel.

Country Status (5)

Country Link
US (1) US4305144A (nl)
JP (1) JPS5398802A (nl)
DE (1) DE2805458C2 (nl)
GB (1) GB1595683A (nl)
NL (1) NL7801528A (nl)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56152941U (nl) * 1980-04-14 1981-11-16
US4484319A (en) * 1980-09-19 1984-11-20 Matsushita Electric Industrial Co., Ltd. Apparatus for locating a track on disc-like optical information carriers
JPS57111837A (en) * 1980-12-27 1982-07-12 Olympus Optical Co Ltd Signal detecting system of optical information reader
FR2497378B1 (fr) * 1980-12-29 1985-06-28 Thomson Csf Dispositif compensateur de desequilibre d'un miroir de renvoi appartenant a un systeme optique d'eclairement d'un support d'information
US4458144A (en) * 1981-06-30 1984-07-03 Storage Technology Corporation Apparatus for reading information stored in a track pattern on a radiation reflecting record
JPS5819744A (ja) * 1981-07-24 1983-02-04 Sony Corp 光学式記録再生装置
JPS58147823A (ja) * 1982-02-25 1983-09-02 Mitsubishi Electric Corp トラツクずれ検出装置
US4462095A (en) * 1982-03-19 1984-07-24 Magnetic Peripherals Inc. Moving diffraction grating for an information track centering system for optical recording
JPS59139152A (ja) * 1983-01-28 1984-08-09 Canon Inc 光情報再生方法および装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2212070A6 (nl) * 1972-08-25 1974-07-19 Thomson Csf
FR2266932B1 (nl) * 1973-03-02 1977-09-02 Thomson Brandt
DE2445333A1 (de) * 1973-10-01 1975-04-10 Philips Nv Optoelektronisches system zur bestimmung einer abweichung zwischen der istlage und der sollage einer ebene in einem optischen abbildungssystem
US3919465A (en) * 1974-01-14 1975-11-11 Zenith Radio Corp Optical system for directly detecting spatially recorded signals
US3931459A (en) * 1974-02-04 1976-01-06 Zenith Radio Corporation Video disc
US4057833A (en) * 1974-10-03 1977-11-08 U.S. Philips Corporation Centering detection system for an apparatus for playing optically readable record carriers
JPS51149004A (en) * 1975-02-24 1976-12-21 Sony Corp Optical apparatus
JPS598892B2 (ja) * 1975-06-19 1984-02-28 ソニー株式会社 信号の光学的記録再生装置
NL182990C (nl) * 1975-07-07 1988-06-16 Philips Nv Inrichting voor het uitlezen van een stralingsreflekterende registratiedrager.
JPS5223310A (en) * 1975-08-18 1977-02-22 Victor Co Of Japan Ltd Data signal optical regeneration system
FR2325987A1 (fr) * 1975-09-29 1977-04-22 Thomson Brandt Dispositif de lecture optique d'un enregistrement
US4065786A (en) * 1975-09-30 1977-12-27 Rca Corporation Videodisc playback system
NL7600843A (nl) * 1976-01-28 1977-08-01 Philips Nv Inrichting voor het uitlezen van een registratie- drager waarop informatie, bijvoorbeeld en/of ge- luidsinformatie, is aangebracht.

Also Published As

Publication number Publication date
DE2805458A1 (de) 1978-08-10
JPS5398802A (en) 1978-08-29
US4305144A (en) 1981-12-08
GB1595683A (en) 1981-08-12
DE2805458C2 (de) 1986-09-25

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed