JPS5724036A - Optical information recording medium - Google Patents

Optical information recording medium

Info

Publication number
JPS5724036A
JPS5724036A JP9925080A JP9925080A JPS5724036A JP S5724036 A JPS5724036 A JP S5724036A JP 9925080 A JP9925080 A JP 9925080A JP 9925080 A JP9925080 A JP 9925080A JP S5724036 A JPS5724036 A JP S5724036A
Authority
JP
Japan
Prior art keywords
information recording
recording medium
optical information
film
plus
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
JP9925080A
Other languages
Japanese (ja)
Inventor
Noboru Sato
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 JP9925080A priority Critical patent/JPS5724036A/en
Publication of JPS5724036A publication Critical patent/JPS5724036A/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
    • G11B2007/24314—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)
    • 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
    • G11B7/2533—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 resins

Landscapes

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

Abstract

PURPOSE:To obtain a recording medium with which a high-quality pit can be formed with a low recording power with high stability of a recording film to the aging, by forming an information recording film with use of an eutectic alloy containing Bi plus Se. CONSTITUTION:An information recording film 22 is coated on a smooth main surface 21a of a light transmittable substrate (such as an acrylic substrate) 21. In such information recording medium 31, the film 22 is formed with an eutectic alloy composed of (a) Bi and (b) one kind or more of Pb, In, Cd and Sn plus a metallic layer containing Se. (The content of Se is set at 50-90atom%).
JP9925080A 1980-07-18 1980-07-18 Optical information recording medium Pending JPS5724036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9925080A JPS5724036A (en) 1980-07-18 1980-07-18 Optical information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9925080A JPS5724036A (en) 1980-07-18 1980-07-18 Optical information recording medium

Publications (1)

Publication Number Publication Date
JPS5724036A true JPS5724036A (en) 1982-02-08

Family

ID=14242454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9925080A Pending JPS5724036A (en) 1980-07-18 1980-07-18 Optical information recording medium

Country Status (1)

Country Link
JP (1) JPS5724036A (en)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5051733A (en) * 1973-09-07 1975-05-08
JPS50142029A (en) * 1974-04-04 1975-11-15
JPS52110634A (en) * 1976-03-15 1977-09-16 Hitachi Ltd Information recording material
JPS52154602A (en) * 1976-06-18 1977-12-22 Hitachi Ltd Information recording
JPS5320941A (en) * 1976-08-11 1978-02-25 Hitachi Ltd Light recorder
JPS5331103A (en) * 1976-09-03 1978-03-24 Hitachi Ltd Forming method of protecting layer of recording members
JPS5446507A (en) * 1977-09-20 1979-04-12 Canon Inc Recording medium and production thereof
JPS5452518A (en) * 1977-10-04 1979-04-25 Canon Inc Recording medium
JPS5466849A (en) * 1977-11-08 1979-05-29 Canon Inc Recording material
JPS553971A (en) * 1978-06-26 1980-01-12 Fuji Photo Film Co Ltd Thermal recording material
JPS553970A (en) * 1978-06-26 1980-01-12 Fuji Photo Film Co Ltd Thermal recording material
JPS555857A (en) * 1978-06-29 1980-01-17 Fuji Photo Film Co Ltd Thermal recording material
JPS5557495A (en) * 1978-10-25 1980-04-28 Fuji Photo Film Co Ltd Thermal recording medium

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5051733A (en) * 1973-09-07 1975-05-08
JPS50142029A (en) * 1974-04-04 1975-11-15
JPS52110634A (en) * 1976-03-15 1977-09-16 Hitachi Ltd Information recording material
JPS52154602A (en) * 1976-06-18 1977-12-22 Hitachi Ltd Information recording
JPS5320941A (en) * 1976-08-11 1978-02-25 Hitachi Ltd Light recorder
JPS5331103A (en) * 1976-09-03 1978-03-24 Hitachi Ltd Forming method of protecting layer of recording members
JPS5446507A (en) * 1977-09-20 1979-04-12 Canon Inc Recording medium and production thereof
JPS5452518A (en) * 1977-10-04 1979-04-25 Canon Inc Recording medium
JPS5466849A (en) * 1977-11-08 1979-05-29 Canon Inc Recording material
JPS553971A (en) * 1978-06-26 1980-01-12 Fuji Photo Film Co Ltd Thermal recording material
JPS553970A (en) * 1978-06-26 1980-01-12 Fuji Photo Film Co Ltd Thermal recording material
JPS555857A (en) * 1978-06-29 1980-01-17 Fuji Photo Film Co Ltd Thermal recording material
JPS5557495A (en) * 1978-10-25 1980-04-28 Fuji Photo Film Co Ltd Thermal recording medium

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