JPS6426848A - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JPS6426848A
JPS6426848A JP62182141A JP18214187A JPS6426848A JP S6426848 A JPS6426848 A JP S6426848A JP 62182141 A JP62182141 A JP 62182141A JP 18214187 A JP18214187 A JP 18214187A JP S6426848 A JPS6426848 A JP S6426848A
Authority
JP
Japan
Prior art keywords
long chain
compd
hetero junction
long
compds
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
JP62182141A
Other languages
Japanese (ja)
Other versions
JPH0367249B2 (en
Inventor
Eiji Ando
Junichi Hibino
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 JP62182141A priority Critical patent/JPS6426848A/en
Publication of JPS6426848A publication Critical patent/JPS6426848A/en
Publication of JPH0367249B2 publication Critical patent/JPH0367249B2/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
    • 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

Abstract

PURPOSE:To obtain a very thin film having a long recording life by forming hetero junction of a specified photochromic compd. and long chain carboxylic acid, long chain alcohol, long chain ester or a mixture of such long chain compds. CONSTITUTION:Hetero junction of a photochromic compd. represented by formula I (where R is 1-31C alkyl chain) and long chain carboxylic acid, long chain alcohol, long chain ester or a mixture of such long chain compds. is formed by the Langmuir-Blodgett's (LB) technique. The stability of a coloring body can be improved by forming the hetero junction. The photochromic compd. has a good balance between hydrophilic and hydrophobic properties of the molecule by introducing a long chain alkyl group and a stable LB film is formed with only the compd. A very thin film can be formed by the LB technique.
JP62182141A 1987-07-23 1987-07-23 Optical recording medium Granted JPS6426848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62182141A JPS6426848A (en) 1987-07-23 1987-07-23 Optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62182141A JPS6426848A (en) 1987-07-23 1987-07-23 Optical recording medium

Publications (2)

Publication Number Publication Date
JPS6426848A true JPS6426848A (en) 1989-01-30
JPH0367249B2 JPH0367249B2 (en) 1991-10-22

Family

ID=16113066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62182141A Granted JPS6426848A (en) 1987-07-23 1987-07-23 Optical recording medium

Country Status (1)

Country Link
JP (1) JPS6426848A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0407005A1 (en) * 1989-06-10 1991-01-09 THORN EMI plc Verification device for a security system
JPH0364745A (en) * 1989-08-03 1991-03-20 Matsushita Electric Ind Co Ltd Manufacture of optical recording medium
US5046181A (en) * 1989-03-17 1991-09-03 Fujitsu Limited Switching system with two-way line managing system
JPH03280041A (en) * 1990-03-29 1991-12-11 Matsushita Electric Ind Co Ltd Production of photochromic thin film
JPH04370599A (en) * 1991-06-20 1992-12-22 Sharp Corp Optical recording medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028824A (en) * 1973-07-16 1975-03-24
JPS5759956A (en) * 1980-09-29 1982-04-10 Sony Corp Photosensitive composition having photochromism
JPS62147456A (en) * 1985-12-20 1987-07-01 Matsushita Electric Ind Co Ltd Optical recording medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028824A (en) * 1973-07-16 1975-03-24
JPS5759956A (en) * 1980-09-29 1982-04-10 Sony Corp Photosensitive composition having photochromism
JPS62147456A (en) * 1985-12-20 1987-07-01 Matsushita Electric Ind Co Ltd Optical recording medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046181A (en) * 1989-03-17 1991-09-03 Fujitsu Limited Switching system with two-way line managing system
EP0407005A1 (en) * 1989-06-10 1991-01-09 THORN EMI plc Verification device for a security system
JPH0364745A (en) * 1989-08-03 1991-03-20 Matsushita Electric Ind Co Ltd Manufacture of optical recording medium
JPH03280041A (en) * 1990-03-29 1991-12-11 Matsushita Electric Ind Co Ltd Production of photochromic thin film
JPH04370599A (en) * 1991-06-20 1992-12-22 Sharp Corp Optical recording medium

Also Published As

Publication number Publication date
JPH0367249B2 (en) 1991-10-22

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term