JPS6431687A - Information recording medium - Google Patents

Information recording medium

Info

Publication number
JPS6431687A
JPS6431687A JP62188024A JP18802487A JPS6431687A JP S6431687 A JPS6431687 A JP S6431687A JP 62188024 A JP62188024 A JP 62188024A JP 18802487 A JP18802487 A JP 18802487A JP S6431687 A JPS6431687 A JP S6431687A
Authority
JP
Japan
Prior art keywords
recording
section
recording section
deformed
reflected light
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
JP62188024A
Other languages
Japanese (ja)
Inventor
Kazuhiko Nakamura
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP62188024A priority Critical patent/JPS6431687A/en
Publication of JPS6431687A publication Critical patent/JPS6431687A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

PURPOSE:To obtain an information recording medium capable of stably operating a servo mechanism on the system side even in case of high-density recording by forming a recording film, a recording section of which is projected and deformed by selective heating, while the reflectivity of the projected deformed recording section is made larger than that of a non-recording section. CONSTITUTION:A bubble-shaped projected deformed recording section 3 is formed by selectively heating a recording film 2 shaped onto a base body 1. The recording section 3 is formed in thickness thin near 5 the apex of the bubble-shaped projected and deformed section and thick in the periphery 6 of a root. Light incidence to the recording section 3 is separated into reflected light A from the surface 3a of the recording film and reflected light B from the reverse side 3b of the recording film 3b while being transmitted through the surface of the recording film represented by B and reflected, and these beams of reflected light mutually interfere and display a synergetic effect, thus intensifying reflected light. Accordingly, the reflectivity of the recording section 3 is made higher than that of a non-recording section 4 in the information recording medium, thus sufficiently operating a servo mechanism on the system side stably even in high-density recording.
JP62188024A 1987-07-28 1987-07-28 Information recording medium Pending JPS6431687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62188024A JPS6431687A (en) 1987-07-28 1987-07-28 Information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62188024A JPS6431687A (en) 1987-07-28 1987-07-28 Information recording medium

Publications (1)

Publication Number Publication Date
JPS6431687A true JPS6431687A (en) 1989-02-01

Family

ID=16216327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62188024A Pending JPS6431687A (en) 1987-07-28 1987-07-28 Information recording medium

Country Status (1)

Country Link
JP (1) JPS6431687A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006150932A (en) * 2004-10-29 2006-06-15 Tama Tlo Kk Certification medium, certification method and certification system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006150932A (en) * 2004-10-29 2006-06-15 Tama Tlo Kk Certification medium, certification method and certification system

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