Coated media for optical recording
US5051978A · kind A · utility
23Cited by
8References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1982 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Nov 30, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/24306
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Recording media for recording information "bits" in response to activation of a laser beam, the media including a recording layer adjacent a "soft pad" layer above and/or below (e.g., a vacuum-evaporated reconstituted fluoropolymer), especially as a "soft pad overcoat". A "hard cap" is overlaid on such a "soft pad" overcoat (e.g., a radiation-cured acrylic) as an outer protective sealing coat. The soft pad may be rendered under the recording layer as a spacer layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.