Scanning LiDAR system and method with spatial filtering for reduction of ambient light
US10838043B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2017 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Nov 24, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A LiDAR detection system includes optical sources disposed along a first direction and a scanning device for scanning optical signals over a second direction different than the first direction into the region. A receiver receives reflected optical signals generated by reflection of the transmitted optical signals and generates receive signals indicative of the reflected optical signals. A mask is disposed near the receiver between the region and the receiver, the mask comprising a plurality of optically transparent slits through which at least a substantial portion of the reflected optical signals pass and an optically opaque portion adjacent to the slits being adapted to substantially block ambient light from reaching the receiver. A processor coupled to the receiver receives and processes the receive signals to generate detections of one or more objects in the region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.