US 11,988,773 B2
2-dimensional steering system for lidar systems
Rui Zhang, Los Altos, CA (US); Huitao Sun, Los Altos, CA (US); Zheng Yang, Los Altos, CA (US); Yimin Li, Los Altos, CA (US); and Junwei Bao, Los Altos, CA (US)
Assigned to Innovusion, Inc., Sunnyvale, CA (US)
Filed by Innovusion Ireland Limited, Los Altos, CA (US)
Filed on Feb. 22, 2019, as Appl. No. 16/283,568.
Claims priority of provisional application 62/634,661, filed on Feb. 23, 2018.
Prior Publication US 2019/0265336 A1, Aug. 29, 2019
Int. Cl. G01C 3/08 (2006.01); G01S 7/481 (2006.01); G01S 7/484 (2006.01); G01S 7/4861 (2020.01); G01S 17/08 (2006.01); G02B 26/10 (2006.01); G02B 26/12 (2006.01); G01S 17/89 (2020.01)
CPC G01S 7/4817 (2013.01) [G01S 7/4818 (2013.01); G01S 7/484 (2013.01); G01S 7/4861 (2013.01); G01S 17/08 (2013.01); G02B 26/101 (2013.01); G02B 26/12 (2013.01); G01S 17/89 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A light detection and ranging (LiDAR) system comprising:
a light source configured to provide one or more first light signals and one or more second light signals;
a rotatable polygon having a plurality of reflective sides including a first reflective side, the rotatable polygon being configured to scan the one or more first light signals and the one or more second light signals in a first direction;
a scanning optic configured to scan the one or more first light signals and the one or more second light signals in a second direction different than the first direction;
wherein the scanning optic is optically coupled to the rotatable polygon and the light source, the scanning optic being configured to direct the one or more first light signals along a first path from the light source to the rotatable polygon and to direct the one or more second light signals along a second path to the rotatable polygon, wherein the first path is different from the second path, the first path and the second path intersecting with the scanning optic substantially simultaneously; and
one or more detectors configured to detect a first return light signal associated with a signal of the one or more first light signals and a second return light signal associated with a signal of the one or more second light signals,
wherein a combination of the rotatable polygon and the scanning optic is configured to redirect both the first return light signal and the second return light signal to the one or more detectors.