Mirror with dielectric coating
US9297936B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2012 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Nov 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/284
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A mirror with a dielectric coating (2) on a substrate (3), wherein the dielectric coating (2) has exactly two layer stacks (4, 5), a first layer stack (4), on the substrate, of layers (41, 42) of high refractive index and low refractive index oxides in alternating arrangement and a second layer stack (5), arranged thereon, of layers of fluorides (52) and oxides (51) in alternating arrangement, and wherein the number of fluoride layers (52) as a proportion of the total number of layers of the dielectric coating (2) is less than 0.45.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.