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1. (WO2018125725) 2D SCANNING HIGH PRECISION LiDAR USING COMBINATION OR ROTATING CONCAVE MIRROR AND BEAM STEERING DEVICES

Pub. No.:    WO/2018/125725    International Application No.:    PCT/US2017/067701
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Dec 21 00:59:59 CET 2017
IPC: G01C 3/08
B23K 26/06
G01J 5/02
G01N 21/86
Applicants: INNOVUSION IRELAND LIMITED
Inventors: BAO, Junwei
LI, Yimin
ZHANG, Rui
Title: 2D SCANNING HIGH PRECISION LiDAR USING COMBINATION OR ROTATING CONCAVE MIRROR AND BEAM STEERING DEVICES
Abstract:
The present disclosure describes a system and method for coaxial LiDAR scanning. The system includes a first light source configured to provide first light pulses. The system also includes one or more beam steering apparatuses optically coupled to the first light source. Each beam steering apparatus comprises a rotatable concave reflector and a light beam steering device disposed at least partially within the rotatable concave reflector. The combination of the light beam steering device and the rotatable concave reflector, when moving with respect to each other, steers the one or more first light pulses both vertically and horizontally to illuminate an object within a field-of-view; obtain one or more first returning light pulses, the one or more first returning light pulses being generated based on the steered first light pulses illuminating an object within the field-of-view, and redirects the one or more first returning light pulses.