Particle detectors
US9057485B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2014 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Aug 4, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D64/512
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A beam detector including a light source, a receiver, and a target, acting in cooperation to detect particles in a monitored area. The target reflects incident light, resulting in reflected light being returned to receiver. The receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector emits a first light beam in a first wavelength band; a second light beam in a second wavelength band; and a third light beam in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.