Optical information recording medium
US5413893A · kind A · utility
1Cited by
17References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1993 |
| Grant date | May 9, 1995 |
| Priority date | — |
| Expiry date | Apr 12, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical information recording medium comprises (1) a base, (2) at least one recording film provided on the base, being capable of bringing about a change in light tranmittance upon being exposed to an optical and/or thermal energy of an incident laser beam, and (3) a reflective film provided on the recording film. The optical information recording medium can exhibit a high contrast and is interexchangeable with CD and LV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.