JPS5894146A - 光学的メモリ媒体 - Google Patents

光学的メモリ媒体

Info

Publication number
JPS5894146A
JPS5894146A JP56193920A JP19392081A JPS5894146A JP S5894146 A JPS5894146 A JP S5894146A JP 56193920 A JP56193920 A JP 56193920A JP 19392081 A JP19392081 A JP 19392081A JP S5894146 A JPS5894146 A JP S5894146A
Authority
JP
Japan
Prior art keywords
melting point
layer
memory medium
recording layer
optical memory
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
JP56193920A
Other languages
English (en)
Japanese (ja)
Other versions
JPS639310B2 (enExample
Inventor
Akiyoshi Nomura
野村　昭義
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56193920A priority Critical patent/JPS5894146A/ja
Publication of JPS5894146A publication Critical patent/JPS5894146A/ja
Publication of JPS639310B2 publication Critical patent/JPS639310B2/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
    • 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
    • G11B2007/25705—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 inorganic materials
    • G11B2007/25706—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 inorganic materials containing transition metal elements (Zn, Fe, Co, Ni, Pt)
    • 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
    • G11B2007/25705—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 inorganic materials
    • G11B2007/2571—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 inorganic materials containing group 14 elements except carbon (Si, Ge, Sn, Pb)
    • 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
    • G11B7/258—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 reflective layers
    • G11B7/2585—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 reflective layers based on aluminium

Landscapes

  • Read Only Memory (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
JP56193920A 1981-12-01 1981-12-01 光学的メモリ媒体 Granted JPS5894146A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56193920A JPS5894146A (ja) 1981-12-01 1981-12-01 光学的メモリ媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56193920A JPS5894146A (ja) 1981-12-01 1981-12-01 光学的メモリ媒体

Publications (2)

Publication Number Publication Date
JPS5894146A true JPS5894146A (ja) 1983-06-04
JPS639310B2 JPS639310B2 (enExample) 1988-02-26

Family

ID=16315933

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56193920A Granted JPS5894146A (ja) 1981-12-01 1981-12-01 光学的メモリ媒体

Country Status (1)

Country Link
JP (1) JPS5894146A (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452518A (en) * 1977-10-04 1979-04-25 Canon Inc Recording medium

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452518A (en) * 1977-10-04 1979-04-25 Canon Inc Recording medium

Also Published As

Publication number Publication date
JPS639310B2 (enExample) 1988-02-26

Similar Documents

Publication Publication Date Title
US4023185A (en) Ablative optical recording medium
US4219826A (en) Optical recording medium
JPS61171389A (ja) 情報記録用薄膜
JPS58146040A (ja) 光学式情報記録原盤
JPH0528535A (ja) 光記録媒体
JPS5894146A (ja) 光学的メモリ媒体
JPS6130329B2 (enExample)
US5728441A (en) Recordable/replayable optical recording medium and optical recording method therefor
US20030165110A1 (en) Write-once high density optical storage medium and process for fabricating the same
JPS5894147A (ja) 光学的メモリ媒体
JPS5916156A (ja) 光学的メモリ媒体
JP2664207B2 (ja) 情報記録用薄膜
JPH01298545A (ja) 円盤型光情報記録媒体及びその製造方法
JP2512044B2 (ja) 光記録媒体及び光記録方法
CA1131774A (en) Optical recording medium
JPS61130089A (ja) 光学的記録媒体
JPH01151026A (ja) 光記録媒体および光記録方法
JPS63833A (ja) 光学式信号記録デイスク
JPH03290835A (ja) 光学的記録媒体円盤
JP2001035008A (ja) 光記録媒体
JPS61105742A (ja) 信号記録媒体
JP2979620B2 (ja) 光学的情報記録媒体および光学的情報記録再生方法
JP2859599B2 (ja) 光学的情報記録媒体
JPH083912B2 (ja) 新規な光記録媒体及びその製造方法
JP2512045B2 (ja) 光記録媒体及び光記録方法