Super resolution optical disc
US7651752B2 · kind B2 · utility
0Cited by
6References
9Claims
0Family size
Assignee
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Key dates
| Filing date | May 19, 2005 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Jan 24, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a super resolution optical disc. The super resolution optical disc comprises dielectric layers, and a mask layer formed between the dielectric layers, in which the mask layer is constructed as a complex mask layer comprising a metallic oxide (MOx) or metallic nitride (MNy), and a metallic thin film formed thereon. A size of the cavities and an amount of metallic particles in cavities created by illumination of recording laser can be controlled to increase a level of a reproduction signal for recording marks and to enhance the quality of the reproduction signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.