FR2300388A1 - Appareil de restitution optique d'informations - Google Patents

Appareil de restitution optique d'informations

Info

Publication number
FR2300388A1
FR2300388A1 FR7603595A FR7603595A FR2300388A1 FR 2300388 A1 FR2300388 A1 FR 2300388A1 FR 7603595 A FR7603595 A FR 7603595A FR 7603595 A FR7603595 A FR 7603595A FR 2300388 A1 FR2300388 A1 FR 2300388A1
Authority
FR
France
Prior art keywords
optical information
restitution device
information restitution
optical
restitution
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.)
Granted
Application number
FR7603595A
Other languages
English (en)
Other versions
FR2300388B1 (fr
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of FR2300388A1 publication Critical patent/FR2300388A1/fr
Application granted granted Critical
Publication of FR2300388B1 publication Critical patent/FR2300388B1/fr
Granted legal-status Critical Current

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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/128—Modulators
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S250/00—Radiant energy
    • Y10S250/909—Methods and apparatus ancillary to stimulable phosphor systems

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Semiconductor Lasers (AREA)
FR7603595A 1975-02-26 1976-02-10 Appareil de restitution optique d'informations Granted FR2300388A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2287875A JPS5415484B2 (fr) 1975-02-26 1975-02-26

Publications (2)

Publication Number Publication Date
FR2300388A1 true FR2300388A1 (fr) 1976-09-03
FR2300388B1 FR2300388B1 (fr) 1980-01-11

Family

ID=12094939

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7603595A Granted FR2300388A1 (fr) 1975-02-26 1976-02-10 Appareil de restitution optique d'informations

Country Status (5)

Country Link
US (1) US4051528A (fr)
JP (1) JPS5415484B2 (fr)
DE (1) DE2607705C3 (fr)
FR (1) FR2300388A1 (fr)
NL (1) NL7601890A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386884A1 (fr) * 1977-04-08 1978-11-03 Xerox Corp Dispositif d'enregistrement et de restitution optique de donnees
FR2402273A1 (fr) * 1977-08-29 1979-03-30 Xerox Corp Dispositif d'enregistrement optique de donnees avec compensation du flou du au mouvement

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4371894A (en) * 1977-08-19 1983-02-01 Iit Research Institute Video disc transducer system and method
JPS54146613A (en) * 1978-05-10 1979-11-16 Hitachi Ltd Optical head
JPS54160212A (en) * 1978-06-09 1979-12-18 Hitachi Ltd Optical head for information processing
US4337534A (en) * 1979-04-18 1982-06-29 Discovision Associates Solid state electro-optical track follower array
JPS55163635A (en) * 1979-06-04 1980-12-19 Mitsubishi Electric Corp Optical tracking device
US4460989A (en) * 1981-06-22 1984-07-17 Eli Soloman Jacobs Apparatus for improving focus during playback of an optical data record
JPS5826330A (ja) * 1981-08-08 1983-02-16 Foster Denki Kk 情報再生装置におけるトラツキング方法
JPS5877036A (ja) * 1981-10-30 1983-05-10 Olympus Optical Co Ltd ピット中心検出方法
EP0092420A1 (fr) * 1982-04-19 1983-10-26 Xerox Corporation Systèmes de mémorisation d'information
US4517667A (en) * 1982-06-10 1985-05-14 Xerox Corporation Direct read after write optical disk system
US4520471A (en) * 1983-02-07 1985-05-28 Rca Corporation Multi-channel recording/playback optics for laser diode arrays
JPS60121439A (ja) * 1983-12-05 1985-06-28 Fuji Photo Film Co Ltd 放射線画像情報読取装置
US4570191A (en) * 1984-07-20 1986-02-11 International Business Machines Corporation Optical sensor for servo position control
JPS6472336A (en) * 1987-09-14 1989-03-17 Sanyo Electric Co Optical pickup device
US5059795A (en) * 1990-08-23 1991-10-22 Eastman Kodak Company Multiple beam radiation image reading apparatus
US5239394A (en) * 1990-10-05 1993-08-24 Eastman Kodak Company Apparatus for storing image information on a photographic record member
DE4300739C2 (de) * 1992-12-22 1999-07-08 Agfa Gevaert Ag Verfahren zur Korrektur von Zeilenpositionsfehlern beim Aufzeichnen und Abtasten von Informationen mit einem Laserstrahl
US6034938A (en) * 1996-07-30 2000-03-07 Seagate Technology, Inc. Data storage system having an optical processing flying head

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795902A (en) * 1966-09-01 1974-03-05 Battelle Development Corp Method and apparatus for synchronizing photographic records of digital information
US3932862A (en) * 1972-05-05 1976-01-13 Robert Michael Graven Coloringbook, a solid state display device
US3856987A (en) * 1972-10-18 1974-12-24 Columbia Broadcasting Syst Inc Horizontal stabilizing system for film scanner
US3854005A (en) * 1973-04-02 1974-12-10 Columbia Broadcasting Syst Inc Film stabilizing system for electron beam recorder
FR2235448B1 (fr) * 1973-06-29 1976-05-07 Thomson Brandt
JPS5037404A (fr) * 1973-08-06 1975-04-08
SE7405076L (sv) * 1974-04-16 1975-10-17 Erik Gerhard Natanel Westberg Optiskt massdataminne.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386884A1 (fr) * 1977-04-08 1978-11-03 Xerox Corp Dispositif d'enregistrement et de restitution optique de donnees
FR2402273A1 (fr) * 1977-08-29 1979-03-30 Xerox Corp Dispositif d'enregistrement optique de donnees avec compensation du flou du au mouvement

Also Published As

Publication number Publication date
JPS5198046A (fr) 1976-08-28
DE2607705C3 (de) 1978-05-24
DE2607705A1 (de) 1976-09-09
US4051528A (en) 1977-09-27
DE2607705B2 (de) 1977-09-22
FR2300388B1 (fr) 1980-01-11
NL7601890A (nl) 1976-08-30
JPS5415484B2 (fr) 1979-06-15

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Legal Events

Date Code Title Description
ST Notification of lapse