Concurrent scan of multiple pixels in a lidar system equipped with a polygon mirror
US10310058B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2018 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Apr 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/021
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lidar system includes one or more light sources configured to generate a first and second beams of light, a scanner configured to synchronously scan a field of regard of the lidar system using the two beams, and a receiver configured to detect light of the two beams scattered by one or more remote targets. The scanner includes a rotatable polygon mirror having a block having a first wall, a second wall, and reflective surfaces extending between the first and second walls, the reflective surfaces being angularly offset from one another along a periphery of the block; a polygon mirror axle extending into the block, about which the block rotates; optical elements configured to direct the first and second beams of light respectively to two adjacent reflective surfaces of the rotatable polygon mirror; and a second mirror pivotable along an axis orthogonal to the polygon mirror axle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.