Multiple band reflector with metal and dielectric layers
US7564628B2 · kind B2 · utility
7Cited by
21References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2006 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Apr 2, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/0875
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Now, according to the present invention, multiple band optical reflectors are provided that utilize a stack of metal and dielectric layers to create a reflection curve in the visible spectrum that has multiple peak intensities. Reflectors of the present invention comprise at least two dielectric layers that have differing thicknesses, with metal layers disposed therebetween. The use of metal layers in the present invention, as opposed to using alternating layers of dielectric materials, results in a reflector that is substantially thinner than a conventional two dielectric reflector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.