JPS5758251A - Information recording medium - Google Patents

Information recording medium

Info

Publication number
JPS5758251A
JPS5758251A JP55133553A JP13355380A JPS5758251A JP S5758251 A JPS5758251 A JP S5758251A JP 55133553 A JP55133553 A JP 55133553A JP 13355380 A JP13355380 A JP 13355380A JP S5758251 A JPS5758251 A JP S5758251A
Authority
JP
Japan
Prior art keywords
information recording
recording medium
high sensitivity
written
constitution
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
JP55133553A
Other languages
Japanese (ja)
Inventor
Yoshikatsu Takeoka
Noburo Yasuda
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55133553A priority Critical patent/JPS5758251A/en
Publication of JPS5758251A publication Critical patent/JPS5758251A/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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material

Landscapes

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

Abstract

PURPOSE:To obtain an information recording medium having a high sensitivity, which can be written in even by an energy beam of a low output, by providing its information recording film whose essential component is a metallic material containing iodine I, on the information recording medium. CONSTITUTION:A recording medium 1 is manufactured by covering a substrate 11 of plastic, etc. with a recording material which has been made a thin film. The information recording film is capable of almost satisfying a condition required for realizing a high sensitivity, by making a metallic material such as bismuth Bi, tellurium Te contain iodine I. That is to say, when I is contained, a recording temperature is lowered without giving many variations to absorptivity of light and thermal conductivity. Accordingly, by such a constitution, it is possible to obtain an information recording medium having a high sensitivity, which can be written in even by an energy beam of a low output.
JP55133553A 1980-09-25 1980-09-25 Information recording medium Pending JPS5758251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55133553A JPS5758251A (en) 1980-09-25 1980-09-25 Information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55133553A JPS5758251A (en) 1980-09-25 1980-09-25 Information recording medium

Publications (1)

Publication Number Publication Date
JPS5758251A true JPS5758251A (en) 1982-04-07

Family

ID=15107499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55133553A Pending JPS5758251A (en) 1980-09-25 1980-09-25 Information recording medium

Country Status (1)

Country Link
JP (1) JPS5758251A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006007635A1 (en) * 2004-07-16 2006-01-26 Securency Pty Limited Method of producing diffractive structures in security documents

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006007635A1 (en) * 2004-07-16 2006-01-26 Securency Pty Limited Method of producing diffractive structures in security documents

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