Optical information recording medium of Te, O and Pd and method for making same
US4624914A · kind A · utility
13Cited by
2References
11Claims
0Family size
Inventors
Key dates
| Filing date | Sep 12, 1985 |
| Grant date | Nov 25, 1986 |
| Priority date | — |
| Expiry date | Sep 12, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical information recording medium comprising a substrate and a photosensitive thin layer consisting of Te, O and Pd. When exposed to optical energy, this thin layer is capable of undergoing a phase change by which an optical transmittance is changed. The addition of Pd results in an improvement of a response time to a great extent. This optical information recording medium is preferably made by a method using a Pd evaporation source and another source for Te+TeO.sub.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.