VCSEL array LIDAR transmitter with small angular divergence
US10514444B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2018 |
| Grant date | Dec 24, 2019 |
| Priority date | — |
| Expiry date | Jul 6, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light detection and ranging (LIDAR) transmitter includes a plurality of light emitters that generate a plurality of optical beams. A first lens is positioned in an optical path of the plurality of optical beams at a distance from at least one of the plurality of light emitters that is less than a focal length of the first lens. The first lens converges the plurality of optical beams to a converged optical beam having a beam waist. A second lens is positioned in the optical path of the converged optical beam. The second lens projects the converged optical beam to a target range. The position of the second lens and an emission width of at least one of the plurality of light emitters are configured to provide a desired field-of-view of the LIDAR transmitter at the target range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.