Micro-electromechanical system Fabry-Perot filter mirrors
US7573578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2006 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Jan 27, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/001
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to one embodiment, a micro-electrical mechanical system apparatus includes first and second mirrors that define a cavity. Moreover, a photonic band-gap structure coats a surface of at least one of the first or second mirrors to improve reflectivity. Another embodiment includes a third mirror, wherein the second and third mirrors form a second cavity. The spaces between the mirrors might comprise, for example, a pair of Fabry-Perot filter cavities for a spectrometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.