Energy efficient, high resolution light detection and ranging imaging receiver with large field-of-view
US11822157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2019 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Jul 30, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light detection and ranging (LIDAR) system with a large field-of-view (FOV) and low operating power includes an intensity modulator, a controller, and one or more camera sensors. The intensity modulator includes a modulating cell that is configured to receive an optical signal and change a polarization state of the optical signal, in response to an electrical signal received from the controller. The modulating cell includes a material that (i) has at least one of a first order electro-optic effect and a second order electro-optic effect and (ii) has an amount of birefringence that is less than or equal to a predefined amount of birefringence. The camera sensor(s) are configured to measure an intensity of the optical signal and determine range information of an object based on the measured intensity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.