Reduced loss diffractive structure
US7064899B2 · kind B2 · utility
7Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2002 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Aug 30, 2022 |
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.