JPS6433744A - Optical card - Google Patents
Optical cardInfo
- Publication number
- JPS6433744A JPS6433744A JP62188770A JP18877087A JPS6433744A JP S6433744 A JPS6433744 A JP S6433744A JP 62188770 A JP62188770 A JP 62188770A JP 18877087 A JP18877087 A JP 18877087A JP S6433744 A JPS6433744 A JP S6433744A
- Authority
- JP
- Japan
- Prior art keywords
- recording film
- org
- substrate
- card
- metallic sheet
- 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
Abstract
PURPOSE:To provide an optical card which obviates the exfoliation of a recording film from a transparent org. substrate and the cracking of the recording film by forming the card into 4-layered constitution in order of the substrate, the recording film, org. adhesive layer, and protective metallic sheet and specifying the thickness of the protective metallic sheet to a 0.01-0.4mm range. CONSTITUTION:This card is made into the 4-layered structure consisting in laminating the recording film 2, the org. adhesive layer 3 and the protective metallic sheet 4 successively on the transparent org. substrate 1. The thickness of the card is specified to 0.75+ or -0.08mm. Deformed build-up parts 5 called as bubbles are formed on the recording film 2 when a laser beam for recording is projected to the card from the transparent org. substrate 1 side. The protective metallic sheet 4 having the thickness ranging 0.01-0.4mm is used as the protective sheet and since the transparent org. substrate 1 deposited with the recording film 2 and the protective metallic sheet 4 are securely adhered by the org. adhesive layer 3, the card is strong to mechanical deformation and the important problems such as the exfoliation of the recording film 2 from the transparent org. substrate 1 and the cracking of the recording film 2 are obviated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62188770A JPS6433744A (en) | 1987-07-30 | 1987-07-30 | Optical card |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62188770A JPS6433744A (en) | 1987-07-30 | 1987-07-30 | Optical card |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6433744A true JPS6433744A (en) | 1989-02-03 |
Family
ID=16229472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62188770A Pending JPS6433744A (en) | 1987-07-30 | 1987-07-30 | Optical card |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6433744A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008544429A (en) * | 2005-03-03 | 2008-12-04 | エンクスネット,インコーポレイテッド | Optical disk with reduced plane thickness |
JP2009512106A (en) * | 2005-10-07 | 2009-03-19 | エンクスネット,インコーポレイテッド | Thin optical disc that can be read remotely |
-
1987
- 1987-07-30 JP JP62188770A patent/JPS6433744A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008544429A (en) * | 2005-03-03 | 2008-12-04 | エンクスネット,インコーポレイテッド | Optical disk with reduced plane thickness |
JP2009512106A (en) * | 2005-10-07 | 2009-03-19 | エンクスネット,インコーポレイテッド | Thin optical disc that can be read remotely |
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