JPS5677193A - Themal recording method by laser beam - Google Patents

Themal recording method by laser beam

Info

Publication number
JPS5677193A
JPS5677193A JP15399679A JP15399679A JPS5677193A JP S5677193 A JPS5677193 A JP S5677193A JP 15399679 A JP15399679 A JP 15399679A JP 15399679 A JP15399679 A JP 15399679A JP S5677193 A JPS5677193 A JP S5677193A
Authority
JP
Japan
Prior art keywords
laser beam
recording
irradiated
film layer
informations
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.)
Pending
Application number
JP15399679A
Other languages
Japanese (ja)
Inventor
Michiharu Abe
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 JP15399679A priority Critical patent/JPS5677193A/en
Publication of JPS5677193A publication Critical patent/JPS5677193A/en
Pending 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs

Abstract

PURPOSE:To record informations thermally in a rapid recording speed by a method wherein a laser beam modulated intensively by recording informations is irradiated concentratively to a recording medium provided with a thin film layer changed by heating and other concentrative laser beam is irradiated to a back side of the irradiating position. CONSTITUTION:On surfaces of recording mediums comprising providing a thin film layer 1B changed physically and chemically by heating and, according to necessity, a transparent protective film layer 1C on a base plate 1 transparent to a laser beam, a recording laser beam 2 modulated intensively by recording informations is concentratively irradiated and, at the same time, other concentrative laser beam 3 is irradiated to the position irradiated by the recording laser beam 2 from other side and the thin film layer 1B is changed by heating action to record informations. A recording arm 4 is branched into two portions and a recording medium 1D is moved so as to be interposed therebetween and semiconductive lasers LD1, LD2 are emitted and focussed by focussing lenses L3, L4 to irradiate a laser beam.
JP15399679A 1979-11-28 1979-11-28 Themal recording method by laser beam Pending JPS5677193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15399679A JPS5677193A (en) 1979-11-28 1979-11-28 Themal recording method by laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15399679A JPS5677193A (en) 1979-11-28 1979-11-28 Themal recording method by laser beam

Publications (1)

Publication Number Publication Date
JPS5677193A true JPS5677193A (en) 1981-06-25

Family

ID=15574630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15399679A Pending JPS5677193A (en) 1979-11-28 1979-11-28 Themal recording method by laser beam

Country Status (1)

Country Link
JP (1) JPS5677193A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63214920A (en) * 1987-03-03 1988-09-07 Makoto Okuda Method and device for writing and reading data for optical recording carrier
EP0818308A1 (en) * 1996-07-09 1998-01-14 Fujifilm Electronic Imaging Limited Method and apparatus for recording information in a record medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63214920A (en) * 1987-03-03 1988-09-07 Makoto Okuda Method and device for writing and reading data for optical recording carrier
EP0818308A1 (en) * 1996-07-09 1998-01-14 Fujifilm Electronic Imaging Limited Method and apparatus for recording information in a record medium

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