Dye-based filter
US7081991B2 · kind B2 · utility
8Cited by
11References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2003 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Jul 23, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display includes a light source. The display also includes a filter positioned to receive light from the light source. The filter is a dye-based filter and attenuates light in the infrared range. The filter can be configured to have a very sharp spectral cutoff. The filter can be an NVIS filter. The display can be utilized in an avionic display system with night vision equipment. The filter can include a host polymer doped with a dye including cobalt or nickel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.