Organic recording medium for fluorescent worm disks
US6682799B1 · kind B1 · utility
3Cited by
8References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2001 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Apr 20, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A dye-in-polymer composition for in fluorescent WORM discs comprises about 0.1 to 10% by weight of a fluorescent dye capable of absorbing laser radiation and transforming the absorbed light into heat; about 10 to 80% by weight of nitrocellulose and a film forming polymer. The dye containing solution is applied to substrate of an optical reading medium by a spin, roller or dip coating. The method utilizes a focused laser beam for scanning the recording layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.