Optical detector of particles
US11204308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2018 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Feb 23, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1493
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a particle detector comprising at least an optical device configured to emit a luminous radiation; and a substrate extending in a plane and defining a channel intended to receive particles, the channel extending principally in a direction perpendicular to the principal plane; characterised in that the detector comprises a matrix of photo detectors and a reflecting surface; the matrix of photo detectors and the reflecting surface being disposed on mutually parallel planes and situated on either side of said portion of the substrate so that a part of the luminous radiation passes through the channel by being diffracted by a particle, then reflects off the reflecting surface, and then reaches the matrix of photo detectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.