Localized window contaminant detection
US11936845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2022 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Sep 8, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30248
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to contaminant detection systems and related optical systems and methods. An example contaminant detection system includes an optical coupler configured to couple light into and/or out of an optical element. The contaminant detection system also includes a plurality of light-emitter devices configured to emit emission light toward the optical coupler. The contaminant detection system additionally includes a plurality of detector devices configured to detect at least a portion of the emission light by way of the optical element and the optical coupler. The plurality of detector devices is also configured to provide detector signals indicative of a presence of a contaminant on the optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.