JPS5454606A - Recording medium - Google Patents

Recording medium

Info

Publication number
JPS5454606A
JPS5454606A JP12205277A JP12205277A JPS5454606A JP S5454606 A JPS5454606 A JP S5454606A JP 12205277 A JP12205277 A JP 12205277A JP 12205277 A JP12205277 A JP 12205277A JP S5454606 A JPS5454606 A JP S5454606A
Authority
JP
Japan
Prior art keywords
heat conductivity
recording
materials
radiated
less
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
JP12205277A
Other languages
Japanese (ja)
Other versions
JPS6217290B2 (en
Inventor
Seishiro Yoshioka
Shigetaro Ogura
Yoshiyuki Osada
Ikuaki Yamagata
Yoko Oikawa
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP12205277A priority Critical patent/JPS5454606A/en
Publication of JPS5454606A publication Critical patent/JPS5454606A/en
Publication of JPS6217290B2 publication Critical patent/JPS6217290B2/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
    • G11B7/251—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 inorganic materials dispersed in an organic matrix

Abstract

PURPOSE:To enable sufficient recording to be performed even with energy beams of weaker outputs than before by mixing materials of low heat conductivity in recording layer. CONSTITUTION:Radiation energy absorbing material 2a such as of a metal, semimetal or the like and low heat conductivity material 2b such as of organic high polymer material having heat conductivity less than 1/2, preferably less than 1/10 the heat conductivity of said material are evaporated in a vacuum, and are deposited as a recording layer 2 on a substrate 1. Volume mixing ratios of the materials 2a, 2b are 0.03 to 40 of the material 2b, preferably ratios of 0.05 to 5, based on one part of the material 2a. At the time when an energy beam 3 such as of laser light is radiated to such recording medium, the escape of the heat evolved in the layer 2 of the radiated part to the adjoining parts becomes less and the materials 2a, 2b effectively melt, deform and evaporate, thus recording is effected by the change in their physical constants.
JP12205277A 1977-10-11 1977-10-11 Recording medium Granted JPS5454606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12205277A JPS5454606A (en) 1977-10-11 1977-10-11 Recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12205277A JPS5454606A (en) 1977-10-11 1977-10-11 Recording medium

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP60235923A Division JPS61142542A (en) 1985-10-21 1985-10-21 Recording medium

Publications (2)

Publication Number Publication Date
JPS5454606A true JPS5454606A (en) 1979-05-01
JPS6217290B2 JPS6217290B2 (en) 1987-04-16

Family

ID=14826414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12205277A Granted JPS5454606A (en) 1977-10-11 1977-10-11 Recording medium

Country Status (1)

Country Link
JP (1) JPS5454606A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023102A1 (en) * 1979-07-02 1981-01-28 Xerox Corporation Optical disc and method of recording information thereon
JPS568294A (en) * 1979-07-03 1981-01-28 Fuji Photo Film Co Ltd Recording material
JPS56142094A (en) * 1980-04-04 1981-11-06 Nippon Telegr & Teleph Corp <Ntt> Laser beam recording member
WO2006112178A1 (en) * 2005-03-31 2006-10-26 Pioneer Corporation Information recording layer of optical disc and optical disc

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499237A (en) * 1972-05-19 1974-01-26
JPS5170633A (en) * 1974-12-16 1976-06-18 Canon Kk ZOKEISEIHO
JPS5220821A (en) * 1975-08-11 1977-02-17 Fuji Photo Film Co Ltd Recording material
JPS53135336A (en) * 1977-04-28 1978-11-25 Toppan Printing Co Ltd Pattern forming method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499237A (en) * 1972-05-19 1974-01-26
JPS5170633A (en) * 1974-12-16 1976-06-18 Canon Kk ZOKEISEIHO
JPS5220821A (en) * 1975-08-11 1977-02-17 Fuji Photo Film Co Ltd Recording material
JPS53135336A (en) * 1977-04-28 1978-11-25 Toppan Printing Co Ltd Pattern forming method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023102A1 (en) * 1979-07-02 1981-01-28 Xerox Corporation Optical disc and method of recording information thereon
JPS5610491A (en) * 1979-07-02 1981-02-02 Xerox Corp Optical recording part
JPS568294A (en) * 1979-07-03 1981-01-28 Fuji Photo Film Co Ltd Recording material
JPS56142094A (en) * 1980-04-04 1981-11-06 Nippon Telegr & Teleph Corp <Ntt> Laser beam recording member
JPH0314635B2 (en) * 1980-04-04 1991-02-27 Nippon Telegraph & Telephone
WO2006112178A1 (en) * 2005-03-31 2006-10-26 Pioneer Corporation Information recording layer of optical disc and optical disc
JPWO2006112178A1 (en) * 2005-03-31 2008-12-04 パイオニア株式会社 Information recording layer of optical disc and optical disc
JP4591790B2 (en) * 2005-03-31 2010-12-01 パイオニア株式会社 Information recording layer of optical disc and optical disc
US7911933B2 (en) 2005-03-31 2011-03-22 Pioneer Corporation Information recording layer of optical disc and optical disc

Also Published As

Publication number Publication date
JPS6217290B2 (en) 1987-04-16

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