Radiation source with a small-angle scanning array
US10305247B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2016 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Sep 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/042
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical apparatus includes an array of lasers, which are arranged in a grid pattern having a predefined spatial pitch and are configured to emit respective beams of pulses of optical radiation. Projection optics having a selected focal length project the beams toward a target with an angular pitch between the beams defined by the spatial pitch and the focal length. A scanner scans the projected beams over a range of scan angles that is less than twice the angular pitch. Control circuitry drives the lasers and the scanner so that the pulses cover the target with a resolution finer than the angular pitch. A receiver receives and measures a time of flight of the pulses reflected from the target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.