JPS57191844A - Reproducing method for optical information - Google Patents

Reproducing method for optical information

Info

Publication number
JPS57191844A
JPS57191844A JP7481881A JP7481881A JPS57191844A JP S57191844 A JPS57191844 A JP S57191844A JP 7481881 A JP7481881 A JP 7481881A JP 7481881 A JP7481881 A JP 7481881A JP S57191844 A JPS57191844 A JP S57191844A
Authority
JP
Japan
Prior art keywords
information
recorded
tracking signal
optical memory
short time
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
JP7481881A
Other languages
Japanese (ja)
Other versions
JPH0234095B2 (en
Inventor
Minoru Wada
Yonosuke Takahashi
Eiichi Hasegawa
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP7481881A priority Critical patent/JPS57191844A/en
Priority to US06/380,318 priority patent/US4529991A/en
Publication of JPS57191844A publication Critical patent/JPS57191844A/en
Publication of JPH0234095B2 publication Critical patent/JPH0234095B2/ja
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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/24—Ablative recording, e.g. by burning marks; Spark recording
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/705—Compositions containing chalcogenides, metals or alloys thereof, as photosensitive substances, e.g. photodope 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

PURPOSE:To reproduce optical information in a short time with high resolving power by arranging a master mask, where a tracking signal or information is recorded, on an optical memory material made of a heat mode recording material, and then allowing a condensed laser beam to scan on it. CONSTITUTION:On an optical memory material made of a heat mode material provided with a metallic recording layer which is deformed or removed thermally by an energy beam on a base, a master mask where a tracking signal or information is recorded is arranged closely, and a laser beam condensed to a spot with a >=10mum diameter scans on it. Consequently, the optical memory wherein the tracking signal and information are recorded is reproduced in a relatively short time with >=1mum high resolving power.
JP7481881A 1981-05-20 1981-05-20 Reproducing method for optical information Granted JPS57191844A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP7481881A JPS57191844A (en) 1981-05-20 1981-05-20 Reproducing method for optical information
US06/380,318 US4529991A (en) 1981-05-20 1982-05-20 Method for copying optical information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7481881A JPS57191844A (en) 1981-05-20 1981-05-20 Reproducing method for optical information

Publications (2)

Publication Number Publication Date
JPS57191844A true JPS57191844A (en) 1982-11-25
JPH0234095B2 JPH0234095B2 (en) 1990-08-01

Family

ID=13558269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7481881A Granted JPS57191844A (en) 1981-05-20 1981-05-20 Reproducing method for optical information

Country Status (1)

Country Link
JP (1) JPS57191844A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59207039A (en) * 1983-05-07 1984-11-24 Kyodo Printing Co Ltd Optical recording card

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5194802A (en) * 1975-02-18 1976-08-19
JPS5532250A (en) * 1978-08-25 1980-03-06 Matsushita Electric Ind Co Ltd Duplicating method for fine pattern

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5194802A (en) * 1975-02-18 1976-08-19
JPS5532250A (en) * 1978-08-25 1980-03-06 Matsushita Electric Ind Co Ltd Duplicating method for fine pattern

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59207039A (en) * 1983-05-07 1984-11-24 Kyodo Printing Co Ltd Optical recording card

Also Published As

Publication number Publication date
JPH0234095B2 (en) 1990-08-01

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