Optical recording disc
US4606017A · kind A · utility
5Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1983 |
| Grant date | Aug 12, 1986 |
| Priority date | — |
| Expiry date | Jun 13, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/24316
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Optical recording disc having successively a transparent substrate plate, a first layer of a formstable synthetic resin comprising an optically readable information track, a second thin layer of a linearly polymerized amorphous synthetic resin and a recording layer in which optically readable information bits are formed by exposure to modulated laser light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.