JPS56156942A - Optical storage device - Google Patents

Optical storage device

Info

Publication number
JPS56156942A
JPS56156942A JP6071180A JP6071180A JPS56156942A JP S56156942 A JPS56156942 A JP S56156942A JP 6071180 A JP6071180 A JP 6071180A JP 6071180 A JP6071180 A JP 6071180A JP S56156942 A JPS56156942 A JP S56156942A
Authority
JP
Japan
Prior art keywords
resin
film
substrate
writing
facilitate
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
JP6071180A
Other languages
Japanese (ja)
Inventor
Atsushi Shibukawa
Hiroshi Nomura
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP6071180A priority Critical patent/JPS56156942A/en
Publication of JPS56156942A publication Critical patent/JPS56156942A/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
    • G11B7/242—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
    • G11B7/245—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 containing a polymeric component
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To maintain a high density and facilitate an easy control of writing for the optical recording, by forming an optical storage medium by attaching an alloy cermet film having a low fusing point onto the surface of a synthetic resin cylinder. CONSTITUTION:A cylindrical substrate 1 is formed with a resin such as acrylic resin or hard vinyl chloride resin or the like that can be formed easily and discharges a gas by the application of heat. Both a low fusing point alloy composed of Bi, Pb, Sn and In and SiO2 are formed at a time on the substrate 1 to obtain a vapor deposited cermet film 2. The laser beam is condensed by a lens 4 to irradiate the film 2, and thus the irradiated area 1A is fused. Then a gas is discharged out of the substrate resin 1 to make a minute hole on the film 2. Thus a readable bit of about 1mum is formed by the surface tension. As all tracks have an equal length to maintain a high density of an optical recording and to facilitate an easy control of writing.
JP6071180A 1980-05-09 1980-05-09 Optical storage device Pending JPS56156942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6071180A JPS56156942A (en) 1980-05-09 1980-05-09 Optical storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6071180A JPS56156942A (en) 1980-05-09 1980-05-09 Optical storage device

Publications (1)

Publication Number Publication Date
JPS56156942A true JPS56156942A (en) 1981-12-03

Family

ID=13150138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6071180A Pending JPS56156942A (en) 1980-05-09 1980-05-09 Optical storage device

Country Status (1)

Country Link
JP (1) JPS56156942A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59124891A (en) * 1982-12-31 1984-07-19 Tdk Corp Optical recording medium
JPS6144689A (en) * 1984-08-10 1986-03-04 Ricoh Co Ltd Board for optical information memorizing medium
US4647947A (en) * 1982-03-15 1987-03-03 Tokyo Shibaura Denki Kabushiki Kaisha Optical protuberant bubble recording medium
JPH0643029U (en) * 1992-11-12 1994-06-07 財団法人ダム水源地環境整備センター Simple fishway device
KR20030009844A (en) * 2001-07-24 2003-02-05 성 운 차 Optical Pick-up Device of Cylindrical Disk

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647947A (en) * 1982-03-15 1987-03-03 Tokyo Shibaura Denki Kabushiki Kaisha Optical protuberant bubble recording medium
JPS59124891A (en) * 1982-12-31 1984-07-19 Tdk Corp Optical recording medium
JPH0521753B2 (en) * 1982-12-31 1993-03-25 Tdk Electronics Co Ltd
JPS6144689A (en) * 1984-08-10 1986-03-04 Ricoh Co Ltd Board for optical information memorizing medium
JPH0643029U (en) * 1992-11-12 1994-06-07 財団法人ダム水源地環境整備センター Simple fishway device
KR20030009844A (en) * 2001-07-24 2003-02-05 성 운 차 Optical Pick-up Device of Cylindrical Disk

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