Field-of-view compression optics for angle tolerant electro-optic modulators
US11867899B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2020 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Feb 20, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0136
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light detection and ranging (LIDAR) system that provides a large field-of-view (FOV) includes an angle tolerant birefringent electro-optic shutter, an optical system, and one or more image sensors. The electro-optic shutter includes a birefringent material. The optical system is configured to receive optical pulses that are reflected from an environment and that include a first set of angles. The optical system is configured to compress the first set of angles into a second set of angles below a threshold angle associated with the birefringent material. The electro-optic shutter is configured to receive the optical signals with the second set of angles. The image sensor(s) are configured to generate an image of the environment based on the optical pulses with the second set of angles that pass through the electro-optic shutter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.