Interference colored filters
US6879450B2 · kind B2 · utility
3Cited by
6References
68Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2002 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Dec 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/286
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pattern structure has at least two different color filter elements disposed one beside the other on a carrier substrate. Each element includes a layer of dielectric material, the layer of dielectric material residing at at least one of the filter elements on a layer of a material that is resistant to activated oxygen or activated water. The layer of resistant material has a second surface pointing toward the substrate and is made of silicon or silicon dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.