Enhanced hybrid LIDAR with high-speed scanning
US12399279B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 8, 2021 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Jun 26, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/89
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical arrangement for a LIDAR system includes a laser, scanner, fold mirror, lens, and sensors. Adding a wedge-shaped optical element creates an auxiliary field of view, when positioned to overlie an edge portion of the lens. The wedge-shaped optical element may have a variable transparency preventing reception by the sensors of excessive signals from close targets. The sensors may be: a plurality of sensors with unique lengths/widths, arranged to form a linear array; or sensors with the same length/width, but positioned to form an arcuate shape, compensating for an arcuate scan line; or two columns of sensors, one with a field of view in focus at far field positions, and the other in focus at near field positions, correcting for parallax effect/error; or a column of highly sensitive sensors surrounded by a plurality of guard rail sensors having higher immunity to damage from stray laser light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.