VCSEL array LIDAR transmitter with small angular divergence
US12140703B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 2023 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Jul 11, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A LIDAR transmitter includes a first transmitter array attached to a substrate and configured to generate a first array of laser beams. A first lens is positioned in an optical path of the first array of laser beams and configured to converge the first array of laser beams along the optical path. A second lens converges the first array of laser beams, wherein a position of a center of the second lens has a first radial offset from a center of the first transmitter array. A second transmitter array is attached to the substrate with a lateral offset from the first transmitter array and configured to generate a second array of laser beams. A third lens is configured to converge the second array of laser beams along the optical path. A fourth lens converges the second array of laser beams, wherein a position of a center of the fourth lens has a second radial offset from a center of the second transmitter array. The lateral offset, the first radial offset, and the second radial offset are chosen to provide a desired beam pattern at a target range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.