Interference filter for non-zero angle of incidence spectroscopy
US8958156B1 · kind B1 · utility
15Cited by
69References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2008 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Mar 20, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure relates to thin film optical interference filters. The filters include a substrate and a plurality of alternating material layers deposited on the substrate. When operated at about 45° angle of incidence, the filters exhibit at least one of improved polarization splitting, edge steepness, bandpass bandwidth, and blocking, relative to conventional thin film interference filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.