MEMs phased-array for LiDAR applications
US12117606B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 24, 2020 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Apr 26, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB81B2201/047
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical scanner including micro-electromechanical system phased-arrays suitable for use in a LiDAR system, and methods of operating the same are described. Generally, the scanner includes an optical transmitter having first phased-arrays to receive light from a light source, form a swath of illumination in a far field scene and to modulate phases of the light to sweep or steer the swath over the scene in two-dimensions (2D). An optical receiver in the scanner includes second phased-arrays to receive light from the far field scene and direct at least some of the light onto a detector. The second phased-arrays are configured to de-scan the received light by directing light reflected from the far field scene onto the detector while rejecting background light. In one embodiment the second phased-arrays direct light from a slice of the far field scene onto a 1D detector array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.