Holographic notch filters
US4965152A · kind A · utility
32Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1989 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Jul 14, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/113
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Holographic notch filters are provided that comprise photopolymer films, having an optical density of at least 2, mounted on a transparent substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.