Lidar receiver with electro-optical filter
US11486985B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2020 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Apr 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of the disclosure provide a receiver in an optical sensing system for receiving a light beam. The receiver includes a first polarizer configured to pass the light beam of a first polarization. The receiver further includes an electro-optical layer coated with patterned transparent electrodes. An electric field is applied to a selected area of the electro-optical layer through the patterned transparent electrodes, and the electro-optical layer changes a portion of the light beam from the first polarization to a second polarization. The receiver also includes a second polarizer configured to selectively pass the portion of the light beam of the second polarization. The receiver additionally includes a detector configured to receive the portion of the light beam output from the second polarizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.