Reduced loss high efficiency diffractive and associated methods
US7422842B2 · kind B2 · utility
1Cited by
8References
25Claims
0Family size
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Key dates
| Filing date | Mar 29, 2006 |
| Grant date | Sep 9, 2008 |
| Priority date | — |
| Expiry date | Mar 29, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/1809
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A sub-wavelength anti-reflective diffractive structure is incorporated with a base diffractive structure having a small period to form a high efficiency diffractive structure. In the high efficiency diffractive structure, the anti-reflective structure and/or the base diffractive structure are altered from their ideal solo structure to provide both the desired performance and minimize reflections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.