JPS6439643A - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JPS6439643A
JPS6439643A JP62195840A JP19584087A JPS6439643A JP S6439643 A JPS6439643 A JP S6439643A JP 62195840 A JP62195840 A JP 62195840A JP 19584087 A JP19584087 A JP 19584087A JP S6439643 A JPS6439643 A JP S6439643A
Authority
JP
Japan
Prior art keywords
recording part
information recording
transparent resin
patterns
resin substrate
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
JP62195840A
Other languages
Japanese (ja)
Other versions
JPH0816990B2 (en
Inventor
Hideo Sato
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.)
Toppan Inc
Original Assignee
Toppan Printing 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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP62195840A priority Critical patent/JPH0816990B2/en
Publication of JPS6439643A publication Critical patent/JPS6439643A/en
Publication of JPH0816990B2 publication Critical patent/JPH0816990B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To increase a contrast ratio and to eliminate reading errors by making recording as rugged shape patterns on a transparent resin substrate and discriminating the rugged shape patterns by inks respectively having an optically high reflectivity and low reflectivity. CONSTITUTION:The ink 9 having the low reflectivity to projected light is filled into the recessed shape pattern parts of the transparent resin substrate 8 in which the rugged shape patterns corresponding to the digital information are formed, by which a 1st information recording part is formed. A high reflection ink layer 14 is formed at a desired thickness on the 1st information recording part by which a 2nd information recording part is formed. A protective layer 16 for protecting the ink layer against external flaws is formed on the 2nd information recording part. The recording part of the optical recording medium consists of the 1st information recording part corresponding to the recessed shape pattern of a metallic mold and the 2nd information recording part corresponding to the projecting shape patterns in such a manner. The optical recording medium which has the contrast consisting of the optical reflection difference from one direction of the transparent resin substrate 8 and has the various density patterns is thus obtd.
JP62195840A 1987-08-05 1987-08-05 Optical recording medium Expired - Lifetime JPH0816990B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62195840A JPH0816990B2 (en) 1987-08-05 1987-08-05 Optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62195840A JPH0816990B2 (en) 1987-08-05 1987-08-05 Optical recording medium

Publications (2)

Publication Number Publication Date
JPS6439643A true JPS6439643A (en) 1989-02-09
JPH0816990B2 JPH0816990B2 (en) 1996-02-21

Family

ID=16347880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62195840A Expired - Lifetime JPH0816990B2 (en) 1987-08-05 1987-08-05 Optical recording medium

Country Status (1)

Country Link
JP (1) JPH0816990B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337841A (en) * 1989-07-05 1991-02-19 Brother Ind Ltd optical disk
JPH0337840A (en) * 1989-07-05 1991-02-19 Brother Ind Ltd phase change optical disc
JP2011145241A (en) * 2010-01-18 2011-07-28 Mitsubishi Electric Corp Optical encoder and scale plate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337841A (en) * 1989-07-05 1991-02-19 Brother Ind Ltd optical disk
JPH0337840A (en) * 1989-07-05 1991-02-19 Brother Ind Ltd phase change optical disc
JP2011145241A (en) * 2010-01-18 2011-07-28 Mitsubishi Electric Corp Optical encoder and scale plate

Also Published As

Publication number Publication date
JPH0816990B2 (en) 1996-02-21

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