Plant detection systems comprising a photodetector housing with a detector lens and an aperture plate
US10883872B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2019 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Jul 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/0276
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A plant detection system includes a radiation module and a photodetector system. The photodetector system includes a photodetector housing, one or more photodetectors, a detector lens, and an aperture plate. The aperture plate is disposed within the photodetector housing between the detector lens and the one or more photodetectors and has an aperture extending therethrough. The detector lens and the aperture plate are configured so that stray radiation received by the detector lens is directed through the aperture in the aperture plate or onto a surface of the aperture plate without being directed onto sidewalls of the photodetector housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.