JPS57212628A - Method and device for information recording - Google Patents

Method and device for information recording

Info

Publication number
JPS57212628A
JPS57212628A JP56097079A JP9707981A JPS57212628A JP S57212628 A JPS57212628 A JP S57212628A JP 56097079 A JP56097079 A JP 56097079A JP 9707981 A JP9707981 A JP 9707981A JP S57212628 A JPS57212628 A JP S57212628A
Authority
JP
Japan
Prior art keywords
recording medium
ultraviolet rays
irradiated
organic pigment
recording
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
JP56097079A
Other languages
Japanese (ja)
Inventor
Hideaki Oba
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 JP56097079A priority Critical patent/JPS57212628A/en
Publication of JPS57212628A publication Critical patent/JPS57212628A/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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00455—Recording involving reflectivity, absorption or colour changes

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

PURPOSE:To eliminate the need to form a hole, and to obtain an excellent S/N method, by irradiating a recording medium with ultraviolet rays simultaneously with a high energy beam while using organic pigment for the recording layer of the recording medium, and thus recording information. CONSTITUTION:Simultaneously with a laser beam 2, a recording medium is irradiated with ultraviolet rays from an ultraviolet-ray lamp 11. This lamp 11 is used only during writing and not used during reading. In this case, organic pigment in the recording medium becomes easy to resolve with ultraviolet rays, and resolves and fades at a relatively low temperature. For this purpose, the recording medium having a recording layer of organic pigment is irradiated with a laser beam while irradiated with ultraviolet rays, and consequently the heated pigment forms a colorless spot, so that required writing energy is less.
JP56097079A 1981-06-23 1981-06-23 Method and device for information recording Pending JPS57212628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56097079A JPS57212628A (en) 1981-06-23 1981-06-23 Method and device for information recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56097079A JPS57212628A (en) 1981-06-23 1981-06-23 Method and device for information recording

Publications (1)

Publication Number Publication Date
JPS57212628A true JPS57212628A (en) 1982-12-27

Family

ID=14182630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56097079A Pending JPS57212628A (en) 1981-06-23 1981-06-23 Method and device for information recording

Country Status (1)

Country Link
JP (1) JPS57212628A (en)

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