Optical films and systems including the same
US11619771B2 · kind B2 · utility
1Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2018 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | May 30, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/26
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Systems including one or both of a light emitter or a light receiver or a detectable object; and an optical filter adjacent one or both of the light emitter or the light receiver, wherein the optical filter includes at least one wavelength transmission selective layer an absorber component, wherein the wavelength transmission selective layer at least partially reduces the transmission of wavelengths from 701 nm to 849 nm incident thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.