Coatings for zinc sulfide optics
US9862851B2 · kind B2 · utility
2Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | Nov 13, 2015 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Apr 21, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/208
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A optical element includes a surface including a zinc sulfide layer; a coupling agent adhered to the zinc sulfide layer by a disulfide bond and including a hydrocarbon tail extending from the disulfide bond; and a polymer bonded to the hydrocarbon tail of the coupling agent by a covalent bond; wherein the polymer and the coupling agent are optically transparent in the long wavelength infrared (LWIR) region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.