JPH0519205B2 - - Google Patents

Info

Publication number
JPH0519205B2
JPH0519205B2 JP58092473A JP9247383A JPH0519205B2 JP H0519205 B2 JPH0519205 B2 JP H0519205B2 JP 58092473 A JP58092473 A JP 58092473A JP 9247383 A JP9247383 A JP 9247383A JP H0519205 B2 JPH0519205 B2 JP H0519205B2
Authority
JP
Japan
Prior art keywords
reading
light
writing
recording medium
optical
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
JP58092473A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59218634A (ja
Inventor
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 JP58092473A priority Critical patent/JPS59218634A/ja
Publication of JPS59218634A publication Critical patent/JPS59218634A/ja
Publication of JPH0519205B2 publication Critical patent/JPH0519205B2/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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • 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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
JP58092473A 1983-05-27 1983-05-27 光情報記録媒体の書き込み読み出し方法 Granted JPS59218634A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58092473A JPS59218634A (ja) 1983-05-27 1983-05-27 光情報記録媒体の書き込み読み出し方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58092473A JPS59218634A (ja) 1983-05-27 1983-05-27 光情報記録媒体の書き込み読み出し方法

Publications (2)

Publication Number Publication Date
JPS59218634A JPS59218634A (ja) 1984-12-08
JPH0519205B2 true JPH0519205B2 (enrdf_load_stackoverflow) 1993-03-16

Family

ID=14055284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58092473A Granted JPS59218634A (ja) 1983-05-27 1983-05-27 光情報記録媒体の書き込み読み出し方法

Country Status (1)

Country Link
JP (1) JPS59218634A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH074980B2 (ja) * 1987-08-05 1995-01-25 太陽誘電株式会社 ディスクへの記録再生方法
JP3141998B2 (ja) * 1989-06-12 2001-03-07 富士写真フイルム株式会社 情報記録媒体
JP2747744B2 (ja) * 1991-04-08 1998-05-06 富士写真フイルム株式会社 光情報記録方法
JPH05120727A (ja) * 1991-10-28 1993-05-18 Ricoh Co Ltd 光記録媒体及び該媒体に情報を記録または再生する方法
US5486437A (en) * 1993-04-08 1996-01-23 Sony Corporation Optical recording method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7900281A (nl) * 1979-01-15 1980-07-17 Philips Nv Optische registratie-inrichting alsmede een werkwijze voor het registreren van informatie langs optische weg.
CA1155548A (en) * 1980-10-31 1983-10-18 Richard L. Wilkinson Optical recording medium and method for its formation
JPS57212639A (en) * 1981-06-23 1982-12-27 Ricoh Co Ltd Information recording medium
JPS5836490A (ja) * 1981-07-24 1983-03-03 Ricoh Co Ltd 光学的情報記録媒体

Also Published As

Publication number Publication date
JPS59218634A (ja) 1984-12-08

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