Particle detectors
US8797531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2010 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Oct 3, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D64/512
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A beam detector (10) including a light source (32), a receiver (34), and a target (36), acting in co-operation to detect particles in a monitored area (38). The target (36), reflects incident light (40), resulting in reflected light (32) being returned to receiver (34). The receiver (34) is a 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 (10) emits a first light beam (3614) in a first wavelength band; a second light beam (3618) in a second wavelength band; and a third light beam (3616) 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.