JPS56124134A - Light storage medium and its production - Google Patents

Light storage medium and its production

Info

Publication number
JPS56124134A
JPS56124134A JP2613680A JP2613680A JPS56124134A JP S56124134 A JPS56124134 A JP S56124134A JP 2613680 A JP2613680 A JP 2613680A JP 2613680 A JP2613680 A JP 2613680A JP S56124134 A JPS56124134 A JP S56124134A
Authority
JP
Japan
Prior art keywords
sio2
storage medium
vapor
light storage
production
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
JP2613680A
Other languages
Japanese (ja)
Inventor
Atsushi Shibukawa
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 JP2613680A priority Critical patent/JPS56124134A/en
Publication of JPS56124134A publication Critical patent/JPS56124134A/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
    • G11B7/243—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
    • G11B7/242—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
    • G11B2007/2431—Metals or metalloids group 13 elements (B, Al, Ga, In)
    • 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
    • G11B2007/24312—Metals or metalloids group 14 elements (e.g. Si, Ge, Sn)
    • 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
    • G11B2007/24318—Non-metallic elements
    • G11B2007/2432—Oxygen

Landscapes

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

Abstract

PURPOSE:To reduce the energy required for writing, by using In of a low-melting point metal together with SiO2 as the light storage medium. CONSTITUTION:In respect to the simultaneous vapor-deposition film of In and SiO2, individual electron guns are used to vapor-deposit In and SiO2, respectively, thereby obtaining this film. Quartz oscillation type film thickness monitors are arranged for respective electron guns to control vapor-deposition speed, thereby controlling mixture rates of In and SiO2. The figure shows evidently that the writing threshold is minimum for the composition of 40-60vol% SiO2.
JP2613680A 1980-03-04 1980-03-04 Light storage medium and its production Pending JPS56124134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2613680A JPS56124134A (en) 1980-03-04 1980-03-04 Light storage medium and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2613680A JPS56124134A (en) 1980-03-04 1980-03-04 Light storage medium and its production

Publications (1)

Publication Number Publication Date
JPS56124134A true JPS56124134A (en) 1981-09-29

Family

ID=12185130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2613680A Pending JPS56124134A (en) 1980-03-04 1980-03-04 Light storage medium and its production

Country Status (1)

Country Link
JP (1) JPS56124134A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58105441A (en) * 1981-12-16 1983-06-23 Fuji Photo Film Co Ltd Optical information recording medium and recording and reading method of optical information
US4640860A (en) * 1985-10-16 1987-02-03 Andus Corp. Optical recording coating
US7932015B2 (en) * 2003-01-08 2011-04-26 Tdk Corporation Optical recording medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58105441A (en) * 1981-12-16 1983-06-23 Fuji Photo Film Co Ltd Optical information recording medium and recording and reading method of optical information
US4473633A (en) * 1981-12-16 1984-09-25 Fuji Photo Film Co., Ltd. Light information recording medium and light information recording and reading method
US4640860A (en) * 1985-10-16 1987-02-03 Andus Corp. Optical recording coating
US7932015B2 (en) * 2003-01-08 2011-04-26 Tdk Corporation Optical recording medium

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