Optical radiation sensor system with cleaning device
US6518577B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2000 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Oct 2, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/157
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is disclosed an optical radiation sensor system. The system includes a sensor device and a cleaning device. The sensor device detects and responds to radiation from a radiation field and includes a surface that is movable with respect to the radiation field between a first position in which the surface is in the radiation field and a second position in which at least a portion of the surface is out of the radiation field. The cleaning device operates to remove fouling materials from at least a portion of the surface in the second position. The cleaning device may be a chemical cleaning device, a mechanical cleaning device or a combined chemical/mechanical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.