US 11,899,134 B2
2D scanning high precision lidar using combination of rotating concave mirror and beam steering devices
Junwei Bao, Los Altos, CA (US); Yimin Li, Cupertino, CA (US); and Rui Zhang, Palo Alto, CA (US)
Assigned to Innovusion, Inc., Sunnyvale, CA (US)
Filed by Innovusion, Inc., Sunnyvale, CA (US)
Filed on Jan. 27, 2023, as Appl. No. 18/102,648.
Application 17/169,366 is a division of application No. 15/721,127, filed on Sep. 29, 2017, granted, now 10,942,257, issued on Mar. 9, 2021.
Application 18/102,648 is a continuation of application No. 17/169,366, filed on Feb. 5, 2021.
Claims priority of provisional application 62/529,955, filed on Jul. 7, 2017.
Claims priority of provisional application 62/441,280, filed on Dec. 31, 2016.
Prior Publication US 2023/0176191 A1, Jun. 8, 2023
Int. Cl. G01S 7/481 (2006.01); G01S 17/42 (2006.01); G02B 26/12 (2006.01); G02B 19/00 (2006.01); G01S 17/931 (2020.01); G01S 17/10 (2020.01); G01S 17/88 (2006.01)
CPC G01S 7/4812 (2013.01) [G01S 7/4816 (2013.01); G01S 7/4817 (2013.01); G01S 17/10 (2013.01); G01S 17/42 (2013.01); G01S 17/88 (2013.01); G01S 17/931 (2020.01); G02B 19/0028 (2013.01); G02B 19/0076 (2013.01); G02B 26/12 (2013.01); G02B 26/124 (2013.01); G02B 26/125 (2013.01); G02B 26/126 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A light detection and ranging (LiDAR) system, comprising:
one or more light sources configured to provide a plurality of light beams;
a beam steering apparatus optically coupled to the one or more light sources to receive the plurality of light beams, the beam steering apparatus comprising a reflector and a rotatable polyhedron having a plurality of facets,
wherein the rotatable polyhedron, when rotating, is configured to:
receive the plurality of light beams at one or more facets of the plurality of facets of the rotatable polyhedron, and
redirect the light beams by the one or more facets of the plurality of facets for scanning a field-of-view; and
wherein a combination of the reflector and the rotatable polyhedron, when moving with respect to each other, is configured to:
scan the light beams both vertically and horizontally to illuminate an object within the field-of-view, and
receive return light formed based on the illumination of the object within the field-of-view, and
direct the return light to an optical sensitive device.