Optical recording method
US5293567A · kind A · utility
10Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1992 |
| Grant date | Mar 8, 1994 |
| Priority date | — |
| Expiry date | Sep 24, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/244
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an optical recording method which utilizes hole burning, a plurality of sorts of light absorption centers having different properties are caused to coexist or to exist in the form of layers, thereby to remove the problem that, although the multiplicity of recording is high, the spacial recording density is low, so the overall recording density is low. Accordingly, the present invention can provide an optical recording method of very high recording density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.