JPS6433749A - Manufacture for tracking channel of optical recording card - Google Patents
Manufacture for tracking channel of optical recording cardInfo
- Publication number
- JPS6433749A JPS6433749A JP62188769A JP18876987A JPS6433749A JP S6433749 A JPS6433749 A JP S6433749A JP 62188769 A JP62188769 A JP 62188769A JP 18876987 A JP18876987 A JP 18876987A JP S6433749 A JPS6433749 A JP S6433749A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- tracking channel
- executed
- temperature
- manufacture
- 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)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
PURPOSE:To execute the mass-production of a translucent sheet with a tracking channel by copying the fine pattern of a stamper with a compression forming method to give the temperature and the pressure of a suitable condition to the translucent sheet whose thickness is between 300-800mum by a heat press. CONSTITUTION:A stamper 2 of a nickel of an electroforming, in which the cutting of the fine pattern is executed, is fitted to one side of heat presses 1, in which the temperature and the pressure can be controlled, and a polycarbonate sheet 3 of thickness 400mum is inserted between the presses 1. After a preheating is executed to one part of the sheet 3 at the temperature lower than a softening point, for example, at 120 deg.C, it is pressurized for thirty seconds with the condition of 200 deg.C and 10kg/cm<2> and a quenching is executed during the pressurizing. The pressurizing is removed at the temperature lower than 120 deg.C and the sheet 3 is coiled off. Thus, with one procedure for forty seconds, a translucent cover film, to which a fine tracking channel is copied, can be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62188769A JPS6433749A (en) | 1987-07-30 | 1987-07-30 | Manufacture for tracking channel of optical recording card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62188769A JPS6433749A (en) | 1987-07-30 | 1987-07-30 | Manufacture for tracking channel of optical recording card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6433749A true JPS6433749A (en) | 1989-02-03 |
Family
ID=16229455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62188769A Pending JPS6433749A (en) | 1987-07-30 | 1987-07-30 | Manufacture for tracking channel of optical recording card |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6433749A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307091A (en) * | 1992-03-16 | 1994-04-26 | Lexmark International, Inc. | Jet ink refill supply |
| EP0724228A2 (en) * | 1995-01-26 | 1996-07-31 | Giesecke & Devrient GmbH | Method for assembling an electronic module in a card body |
-
1987
- 1987-07-30 JP JP62188769A patent/JPS6433749A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307091A (en) * | 1992-03-16 | 1994-04-26 | Lexmark International, Inc. | Jet ink refill supply |
| EP0724228A2 (en) * | 1995-01-26 | 1996-07-31 | Giesecke & Devrient GmbH | Method for assembling an electronic module in a card body |
| EP0724228A3 (en) * | 1995-01-26 | 1998-01-07 | Giesecke & Devrient GmbH | Method for assembling an electronic module in a card body |
| US5951810A (en) * | 1995-01-26 | 1999-09-14 | Giesecke & Devrient Gmbh | Method for mounting an electronic module in a card body |
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