JPS5760546A - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JPS5760546A
JPS5760546A JP55136253A JP13625380A JPS5760546A JP S5760546 A JPS5760546 A JP S5760546A JP 55136253 A JP55136253 A JP 55136253A JP 13625380 A JP13625380 A JP 13625380A JP S5760546 A JPS5760546 A JP S5760546A
Authority
JP
Japan
Prior art keywords
film
protective film
recording
high polymer
vapor
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
JP55136253A
Other languages
Japanese (ja)
Other versions
JPS6342333B2 (en
Inventor
Nagaaki Etsuno
Yasuyuki Goto
Hironori Goto
Seiya Ogawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55136253A priority Critical patent/JPS5760546A/en
Publication of JPS5760546A publication Critical patent/JPS5760546A/en
Publication of JPS6342333B2 publication Critical patent/JPS6342333B2/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
    • G11B7/252—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
    • G11B7/252—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
    • G11B7/257—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B7/2572—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of organic materials
    • G11B7/2575—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of organic materials resins

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

PURPOSE:To provide a stable recording thin film having scratch resistance and uneasy penetration of O2 and water vapor, by providing the 1st protective film made of rubberlike high polymer on the recording thin film on a substrate, and providing the 2nd protective film on organic macromolecular polymer without using solvent on it. CONSTITUTION:A thin film 2 on which information is recorded through hole processing by laser light irradiation, is formed on a substrate 1 made of glass disc or the like, by vapor-depositing Te. Next, the 1st protective film 3 is formed by a rubberlike transparent high polymer film such as liquid urethane rubber and silicon rubber. Next, the 2nd protective film 4 is formed by using an organic high polymer which can be formed without using a solvent such as light-curing epoxy resin and acrylic resin to make an optical recording medium. It can be formed on the film 4 for a hard protective film by forming an SiO2 film through electron beam vapor- deposition. The 1st protective film 3 does not increase a laser beam output required for recording, and the 2nd protective film 4 guards the film 2 from mechanical and chemical damages, allowing to obtain excellent recording with high density without expanding the film 3 at the formation of the film 4.
JP55136253A 1980-09-30 1980-09-30 Optical recording medium Granted JPS5760546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55136253A JPS5760546A (en) 1980-09-30 1980-09-30 Optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55136253A JPS5760546A (en) 1980-09-30 1980-09-30 Optical recording medium

Publications (2)

Publication Number Publication Date
JPS5760546A true JPS5760546A (en) 1982-04-12
JPS6342333B2 JPS6342333B2 (en) 1988-08-23

Family

ID=15170853

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55136253A Granted JPS5760546A (en) 1980-09-30 1980-09-30 Optical recording medium

Country Status (1)

Country Link
JP (1) JPS5760546A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5999777U (en) * 1982-12-24 1984-07-05 共同印刷株式会社 ID card with optical memory
JPS5999779U (en) * 1982-12-24 1984-07-05 共同印刷株式会社 ID card with optical memory medium
EP0126161A1 (en) * 1982-10-26 1984-11-28 Matsushita Electric Industrial Co., Ltd. Optical disc
US4719615A (en) * 1983-08-22 1988-01-12 Optical Data, Inc. Erasable optical data storage medium
US4825430A (en) * 1986-12-19 1989-04-25 Optical Data, Inc. Erasable optical data storage medium having an embedded servo track and a subsurface recording interface
JPH0316504A (en) * 1989-06-15 1991-01-24 Matsushita Electric Works Ltd Motor tooth brush

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553970A (en) * 1978-06-26 1980-01-12 Fuji Photo Film Co Ltd Thermal recording material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553970A (en) * 1978-06-26 1980-01-12 Fuji Photo Film Co Ltd Thermal recording material

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126161A1 (en) * 1982-10-26 1984-11-28 Matsushita Electric Industrial Co., Ltd. Optical disc
JPS5999777U (en) * 1982-12-24 1984-07-05 共同印刷株式会社 ID card with optical memory
JPS5999779U (en) * 1982-12-24 1984-07-05 共同印刷株式会社 ID card with optical memory medium
JPH0222299Y2 (en) * 1982-12-24 1990-06-15
JPH0222297Y2 (en) * 1982-12-24 1990-06-15
US4719615A (en) * 1983-08-22 1988-01-12 Optical Data, Inc. Erasable optical data storage medium
US4825430A (en) * 1986-12-19 1989-04-25 Optical Data, Inc. Erasable optical data storage medium having an embedded servo track and a subsurface recording interface
JPH0316504A (en) * 1989-06-15 1991-01-24 Matsushita Electric Works Ltd Motor tooth brush

Also Published As

Publication number Publication date
JPS6342333B2 (en) 1988-08-23

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