Anti-reflective coating for holographic data storage media
US6839177B2 · kind B2 · utility
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4References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Feb 24, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C13/042
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A holographic data storage medium having an anti-reflective coating is described. The anti-reflective coating can be made to reduce reflectivity for S-polarized light over a wide range of incident angles. Moreover, the anti-reflective coating can be made to have a sufficiently high transmittance for the S-polarized light. The coating may improve performance of the holographic data storage medium, and can facilitate higher storage densities than can be achieved without the coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.