Selective light-blocking optical products having a neutral reflection
US10627555B2 · kind B2 · utility
0Cited by
33References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | May 4, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical products that include a composite coating, deposited on a substrate, provided with at least one bilayer having a first layer and a second layer, each provided with a binding group component which together form a complementary binding group pair. The at least one bilayer comprises a pigment blend that includes: a) at least two pigments that, when mixed together and formed into a bilayer, exhibit a color reflection value that is less than about 2.5; and b) one or more pigments that when mixed and formed into a bilayer selectively block visible light in a wavelength range of interest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.