JPH0470620B2 - - Google Patents

Info

Publication number
JPH0470620B2
JPH0470620B2 JP63087260A JP8726088A JPH0470620B2 JP H0470620 B2 JPH0470620 B2 JP H0470620B2 JP 63087260 A JP63087260 A JP 63087260A JP 8726088 A JP8726088 A JP 8726088A JP H0470620 B2 JPH0470620 B2 JP H0470620B2
Authority
JP
Japan
Prior art keywords
photochromic compound
layer
monomer
recording medium
general formula
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
JP63087260A
Other languages
English (en)
Japanese (ja)
Other versions
JPH01259354A (ja
Inventor
Taku Hashida
Junichi Hibino
Eiji Ando
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP63087260A priority Critical patent/JPH01259354A/ja
Publication of JPH01259354A publication Critical patent/JPH01259354A/ja
Publication of JPH0470620B2 publication Critical patent/JPH0470620B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/685—Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
JP63087260A 1988-04-11 1988-04-11 光学記録媒体および記録状態の検出方法 Granted JPH01259354A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63087260A JPH01259354A (ja) 1988-04-11 1988-04-11 光学記録媒体および記録状態の検出方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63087260A JPH01259354A (ja) 1988-04-11 1988-04-11 光学記録媒体および記録状態の検出方法

Publications (2)

Publication Number Publication Date
JPH01259354A JPH01259354A (ja) 1989-10-17
JPH0470620B2 true JPH0470620B2 (enrdf_load_stackoverflow) 1992-11-11

Family

ID=13909803

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63087260A Granted JPH01259354A (ja) 1988-04-11 1988-04-11 光学記録媒体および記録状態の検出方法

Country Status (1)

Country Link
JP (1) JPH01259354A (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59215382A (ja) * 1983-05-20 1984-12-05 Sony Corp 感光材料
JPS62147454A (ja) * 1985-12-20 1987-07-01 Matsushita Electric Ind Co Ltd 光学記録媒体
JPS62147456A (ja) * 1985-12-20 1987-07-01 Matsushita Electric Ind Co Ltd 光学記録媒体

Also Published As

Publication number Publication date
JPH01259354A (ja) 1989-10-17

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term