Low color purity, anti-reflection coatings for transparent glazings oriented at high angles of incidence
US5194990A · kind A · utility
30Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1991 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Oct 7, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/115
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Three-layer, low color purity, anti-reflection coatings reduce the reflection of visible light rays and display a low color purity when glazings carrying such coatings are oriented at high angles of incidence with respect to a source of visible light. The reflectances are comparable and the color purity values are lower for such glazings, when compared with conventional glazings coated with 1/4-178 -174 wavelength anti-reflection coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.