JPH0471717B2 - - Google Patents

Info

Publication number
JPH0471717B2
JPH0471717B2 JP56209929A JP20992981A JPH0471717B2 JP H0471717 B2 JPH0471717 B2 JP H0471717B2 JP 56209929 A JP56209929 A JP 56209929A JP 20992981 A JP20992981 A JP 20992981A JP H0471717 B2 JPH0471717 B2 JP H0471717B2
Authority
JP
Japan
Prior art keywords
recording
dye
film
reflectance
thin film
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.)
Expired - Lifetime
Application number
JP56209929A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58112790A (ja
Inventor
Makoto Kunikane
Michiharu Abe
Masaaki Umehara
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56209929A priority Critical patent/JPS58112790A/ja
Priority to US06/452,238 priority patent/US4460665A/en
Publication of JPS58112790A publication Critical patent/JPS58112790A/ja
Publication of JPH0471717B2 publication Critical patent/JPH0471717B2/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
    • G11B7/242—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
    • G11B7/246—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 dyes
    • G11B7/247—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 dyes methine or polymethine dyes
    • G11B7/2475—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 dyes methine or polymethine dyes merocyanine
    • 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
    • G11B7/246—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 dyes
    • G11B7/247—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 dyes methine or polymethine dyes
    • G11B7/2472—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 dyes methine or polymethine dyes cyanine

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Read Only Memory (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP56209929A 1981-12-28 1981-12-28 光情報記録部材 Granted JPS58112790A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56209929A JPS58112790A (ja) 1981-12-28 1981-12-28 光情報記録部材
US06/452,238 US4460665A (en) 1981-12-28 1982-12-22 Optical information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56209929A JPS58112790A (ja) 1981-12-28 1981-12-28 光情報記録部材

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP57212663A Division JPS58114989A (ja) 1981-12-28 1982-12-06 光情報記録部材
JP1171246A Division JPH0264933A (ja) 1989-07-04 1989-07-04 光情報記録再生方法

Publications (2)

Publication Number Publication Date
JPS58112790A JPS58112790A (ja) 1983-07-05
JPH0471717B2 true JPH0471717B2 (enrdf_load_stackoverflow) 1992-11-16

Family

ID=16580989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56209929A Granted JPS58112790A (ja) 1981-12-28 1981-12-28 光情報記録部材

Country Status (1)

Country Link
JP (1) JPS58112790A (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512416A (en) * 1982-07-30 1996-04-30 Tdk Corporation Optical recording medium
JPS60103532A (ja) * 1983-11-09 1985-06-07 Pioneer Electronic Corp 情報記録担体
US4656121A (en) * 1984-02-06 1987-04-07 Ricoh Co., Ltd. Optical information recording medium
JPS60257290A (ja) * 1984-06-04 1985-12-19 Ricoh Co Ltd 光情報記録媒体
JPS6144689A (ja) * 1984-08-10 1986-03-04 Ricoh Co Ltd 光情報記憶媒体用基板
JPS61205187A (ja) * 1985-03-08 1986-09-11 Matsushita Electric Ind Co Ltd 光学記録媒体
EP0204876B1 (en) * 1985-04-08 1992-01-22 Celanese Corporation Optical data storage medium having a highly reflective organic information layer
US4908294A (en) * 1986-02-13 1990-03-13 Olympus Optical Co., Ltd. Optical information recording medium
JPH0730300B2 (ja) * 1988-04-01 1995-04-05 三井東圧化学株式会社 アルキルフタロシアニン近赤外線吸収剤及びそれを用いた表示・記録材料
US5166359A (en) * 1988-04-21 1992-11-24 Basf Aktiengesellschaft Azulenemethine dyes and an optical recording medium containing the novel dyes
DE3936051A1 (de) * 1989-10-28 1991-05-02 Basf Ag Chinoxalinpentamethinfarbstoffe sowie optisches aufzeichnungsmedium, enthaltend die neuen farbstoffe
US6737143B2 (en) 2001-06-14 2004-05-18 Ricoh Company Ltd. Optical recording medium, optical recording method and optical recording device
JP4137691B2 (ja) 2003-04-30 2008-08-20 株式会社リコー 光記録媒体

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5616948A (en) * 1979-07-23 1981-02-18 Nippon Telegr & Teleph Corp <Ntt> Optical memory medium
JPS5625243A (en) * 1979-08-09 1981-03-11 Nippon Telegr & Teleph Corp <Ntt> Optical memory medium
JPS56153543A (en) * 1980-04-26 1981-11-27 Nippon Telegr & Teleph Corp <Ntt> Light storage medium

Also Published As

Publication number Publication date
JPS58112790A (ja) 1983-07-05

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