Optical element containing an interference fringe filter
US6825983B2 · kind B2 · utility
5Cited by
5References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Sep 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/287
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is an optical element comprising in order a light source, air, at least one thin layer having a thickness of 80 to 200 nm, and a thick layer, each layer varying in refractive index (RI) by at least 0.05 from the next adjacent layer, in an alternating manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.