Systems with colored infrared-transparent layers
US10502879B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2017 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Jan 5, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/101
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system such as a vehicle system, building, or electrical equipment may be provided with one or more optical components. The optical components may include a near-infrared camera or other components that operate at near-infrared wavelengths. A visible-light-reflecting-and-infrared-light-transmitting layer may overlap the optical component. The visible-light-reflecting-and-infrared-light-transmitting layer may have an infrared-transparent substrate. A polymer layer may be formed on the substrate and may contain plasmonic nanoparticles that reflect white light. Colorant may be incorporated into the polymer layer or into an additional polymer coating to impart a desired color to the reflected white light and thereby provide the visible-light-reflecting-and-infrared-light-transmitting layer with a desired appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.