Air-gap optical structure with a nonreflective air-gap spacer
US7505208B1 · kind B1 · utility
1Cited by
18References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2006 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | Dec 4, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B17/0856
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An air-gap optical structure includes a first transmissive optical element, a second transmissive optical element, and a spacer structure disposed between the first transmissive optical element and the second transmissive optical element so as to define an air gap therebetween. The spacer structure includes a spacer having a spacer body, and a nonreflective multilayer interference coating between the spacer body and the second transmissive optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.