JPS5621891A - Optical recording material - Google Patents

Optical recording material

Info

Publication number
JPS5621891A
JPS5621891A JP9669479A JP9669479A JPS5621891A JP S5621891 A JPS5621891 A JP S5621891A JP 9669479 A JP9669479 A JP 9669479A JP 9669479 A JP9669479 A JP 9669479A JP S5621891 A JPS5621891 A JP S5621891A
Authority
JP
Japan
Prior art keywords
film
recording
transparent
organic film
recording material
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.)
Pending
Application number
JP9669479A
Other languages
Japanese (ja)
Inventor
Noburo Yasuda
Yoshinori Fujimori
Masaaki Morita
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9669479A priority Critical patent/JPS5621891A/en
Publication of JPS5621891A publication Critical patent/JPS5621891A/en
Pending 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
    • G11B7/252—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
    • G11B7/254—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 protective topcoat layers
    • G11B7/2542—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 protective topcoat layers consisting essentially of organic resins
    • 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
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
    • 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
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To provide a large-storing capacity, high density and highly durable optical recording material best suited to read only memory by placing protective layer of specific thickness such as transparent organic film and transparent inorganic film on the light receiving surface of recording film to prevent oxidization of metallic film. CONSTITUTION:Part of recording film (Bi, Se, Te, etc. with film thickness of 200-300Angstrom are desirable) formed on the base plate (glass, plastic, etc.) is evaporated through radiation of laser beam (beam less than 1mumphi is desirable) and recording is made depending on the existence of, or lack of, film. In such optical recording material, light receiving surface of recording film is provided with transparent organic film (preferably, application and hardening of transparent epoxy or melamine resin) on which transprent organic film (preferably vacuum evaporation of SiO2) or transparent organic film (preferably Teflon) is placed to form of protective layer 200mum in thickness.
JP9669479A 1979-07-31 1979-07-31 Optical recording material Pending JPS5621891A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9669479A JPS5621891A (en) 1979-07-31 1979-07-31 Optical recording material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9669479A JPS5621891A (en) 1979-07-31 1979-07-31 Optical recording material

Publications (1)

Publication Number Publication Date
JPS5621891A true JPS5621891A (en) 1981-02-28

Family

ID=14171876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9669479A Pending JPS5621891A (en) 1979-07-31 1979-07-31 Optical recording material

Country Status (1)

Country Link
JP (1) JPS5621891A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5896593A (en) * 1981-11-23 1983-06-08 ゼネラル・エレクトリック・カンパニイ Optical recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5896593A (en) * 1981-11-23 1983-06-08 ゼネラル・エレクトリック・カンパニイ Optical recording medium
JPH0561111B2 (en) * 1981-11-23 1993-09-03 Gen Electric

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