JPH0544739B2 - - Google Patents

Info

Publication number
JPH0544739B2
JPH0544739B2 JP59064213A JP6421384A JPH0544739B2 JP H0544739 B2 JPH0544739 B2 JP H0544739B2 JP 59064213 A JP59064213 A JP 59064213A JP 6421384 A JP6421384 A JP 6421384A JP H0544739 B2 JPH0544739 B2 JP H0544739B2
Authority
JP
Japan
Prior art keywords
layer
light
recording medium
light absorption
recording
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 - Lifetime
Application number
JP59064213A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60209940A (ja
Inventor
Nobutoshi Asai
Shinichiro Tamura
Nobuyoshi Seto
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP59064213A priority Critical patent/JPS60209940A/ja
Publication of JPS60209940A publication Critical patent/JPS60209940A/ja
Publication of JPH0544739B2 publication Critical patent/JPH0544739B2/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
    • G11B7/241—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
    • G11B7/244—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 organic materials 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
    • G11B7/24—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
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • 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
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2531—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising glass

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
JP59064213A 1984-03-31 1984-03-31 光学式記録媒体 Granted JPS60209940A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59064213A JPS60209940A (ja) 1984-03-31 1984-03-31 光学式記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59064213A JPS60209940A (ja) 1984-03-31 1984-03-31 光学式記録媒体

Publications (2)

Publication Number Publication Date
JPS60209940A JPS60209940A (ja) 1985-10-22
JPH0544739B2 true JPH0544739B2 (enExample) 1993-07-07

Family

ID=13251579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59064213A Granted JPS60209940A (ja) 1984-03-31 1984-03-31 光学式記録媒体

Country Status (1)

Country Link
JP (1) JPS60209940A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08315422A (ja) * 1995-05-15 1996-11-29 Nec Corp 光記録媒体

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101907A (en) * 1977-08-29 1978-07-18 Rca Corporation Overcoat structure for optical video disc
JPS5778649A (en) * 1980-10-30 1982-05-17 Teijin Ltd Laminated material for optical memory
JPS586541A (ja) * 1981-07-02 1983-01-14 Sharp Corp 磁気光学記憶素子
JPS598150A (ja) * 1982-07-02 1984-01-17 Sharp Corp 磁気光学記憶素子
JPH0226299A (ja) * 1988-07-15 1990-01-29 Matsushita Electric Works Ltd ステップモータ

Also Published As

Publication number Publication date
JPS60209940A (ja) 1985-10-22

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term