JPS6423437A - Optical recording medium - Google Patents
Optical recording mediumInfo
- Publication number
- JPS6423437A JPS6423437A JP62179129A JP17912987A JPS6423437A JP S6423437 A JPS6423437 A JP S6423437A JP 62179129 A JP62179129 A JP 62179129A JP 17912987 A JP17912987 A JP 17912987A JP S6423437 A JPS6423437 A JP S6423437A
- Authority
- JP
- Japan
- Prior art keywords
- optical recording
- recording layer
- layer
- medium
- polycarbonate
- 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
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 prevent the generation of reflected stray light and to obtain high SN by providing an underlying layer having <=2% reflectivity under an optical recording layer viewed from an incident side near the optical recording layer in an optical recording medium. CONSTITUTION:A transparent substrate 1 consisting of polycarbonate is used and track grooves 2 are formed thereon by thermal transfer with a stamper mold. The optical recording layer 3 consisting of a polymethine dye is provided in the grooves 2. On the other hand, polycarbonate is used for a card substrate 5 and the underlying layer 10 formed of ink incorporated therein with carbon black is provided in the effective recording part. The substrates 1 and 5 are thermally adhered by an adhesive agent consisting of an ethylene/vinyl acetate copolymer system to complete the medium. Resins such as acryl and polyester are used for the transparent substrate 1 and polyvinyl chloride, polyethylene, etc., are used for the card substrate. A dioxane compd., etc., or oxides of Te, Mo, etc., are used for the optical recording layer. Materials which have <=2% reflectivity of laser light in the medium, do not deteriorate the adjacent layers 3, 4, 5 and are free from deformation, decoloration and heat conduction by laser light are selected for the layer 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62179129A JPS6423437A (en) | 1987-07-20 | 1987-07-20 | Optical recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62179129A JPS6423437A (en) | 1987-07-20 | 1987-07-20 | Optical recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6423437A true JPS6423437A (en) | 1989-01-26 |
Family
ID=16060495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62179129A Pending JPS6423437A (en) | 1987-07-20 | 1987-07-20 | Optical recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6423437A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6060773A (en) * | 1997-05-15 | 2000-05-09 | Nippon Telegraph And Telephone Corporation | Semiconductor chip and method of manufacturing the same |
| US20150220056A1 (en) * | 2012-08-23 | 2015-08-06 | Bayer Materialscience Ag | Polycarbonate-based security documents and/or documents of value with a hologram in the card body |
-
1987
- 1987-07-20 JP JP62179129A patent/JPS6423437A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6060773A (en) * | 1997-05-15 | 2000-05-09 | Nippon Telegraph And Telephone Corporation | Semiconductor chip and method of manufacturing the same |
| US20150220056A1 (en) * | 2012-08-23 | 2015-08-06 | Bayer Materialscience Ag | Polycarbonate-based security documents and/or documents of value with a hologram in the card body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR900010688A (en) | Optical information recording media with peelable protective film | |
| AU3508489A (en) | Method of optically scanning an information plane and optical record carriers and scanning apparatuses suitable for use of said method | |
| JPS63181137A (en) | Optical information recording medium | |
| MY104122A (en) | Optical information recording medium. | |
| IE881877L (en) | Optical record cards | |
| JPS5740766A (en) | Optical recording disc | |
| US4525412A (en) | Information recording medium | |
| AU606298B2 (en) | Optical recording media | |
| JPS6423437A (en) | Optical recording medium | |
| AU574523B2 (en) | Thermal recording medium and method | |
| JP3536413B2 (en) | Invisible information recording sticker | |
| JPS5770694A (en) | Information-recording member | |
| JPS56156941A (en) | Optical recording medium | |
| JPS6431692A (en) | Optical record medium | |
| JPS56155940A (en) | Optically recording medium | |
| JP2615546B2 (en) | Laser recording material and image forming method | |
| JPS57210893A (en) | Optical recording member | |
| JPS6423436A (en) | Optical recording medium | |
| JPS5621890A (en) | Optical recording material | |
| JPS57186242A (en) | Optical information recording medium | |
| EP0379276A3 (en) | Erasable optical recording medium and method for writing, reading and/or erasing thereof | |
| JPS6467731A (en) | Optical recording medium | |
| JPS63121143A (en) | Optical card and its manufacture | |
| ATE170657T1 (en) | OPTICAL RECORDING MEDIUM | |
| EP0395053A3 (en) | Optical information recording medium |