Spectral sensor system using optical filter subarrays
US11747533B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2021 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Jul 18, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/123
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical sensor system includes a plurality of sets of optical sensors implemented on a substrate, with a plurality of sets of optical filters, wherein a set of optical filters of the plurality of sets of optical filters is associated with a set of optical sensors and a set of optical filters of the plurality of sets of optical filters includes a plurality of optical filters that are arranged in a pattern, with each optical filter of the plurality of optical filters configured to pass light in a different wavelength range of a predefined spectral range. Each set of optical filters operates to provide a bandpass response corresponding to the predefined spectral range and a set of optical filters is located atop an associated set of optical sensors, where at least two sets of optical filters of the plurality of sets of optical filters are configured to provide different bandpass responses. An optical element is associated with a corresponding set of optical sensors, with each rejection filter configured to pass light wavelengths in a predefined spectral range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.