US 12,130,363 B2
LIDAR system
Nicholas Anthony Buoniconti, IV, Palo Alto, CA (US); Yonggang Ha, Palo Alto, CA (US); Zhongjie Li, Palo Alto, CA (US); and Cal Alden Smith, Palo Alto, CA (US)
Assigned to AURORA OPERATIONS, INC., Pittsburgh, PA (US)
Filed by Aurora Operations, Inc., Pittsburgh, PA (US)
Filed on Feb. 3, 2022, as Appl. No. 17/592,286.
Prior Publication US 2023/0243977 A1, Aug. 3, 2023
Int. Cl. G01S 17/931 (2020.01); G01S 7/481 (2006.01); G01S 17/42 (2006.01)
CPC G01S 17/931 (2020.01) [G01S 7/4817 (2013.01); G01S 17/42 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A light detection and ranging (LIDAR) system, comprising:
a laser source configured to generate a beam; and
a polygon scanner, comprising:
a frame having a first flat frame surface and a second flat frame surface around an axis, and at least one frame portion between the first frame surface and the second frame surface; and
a plurality of mirrors coupled to the frame, each mirror comprising a glass material, a central portion of an inner surface of a first mirror of the plurality of mirrors coupled to the first frame surface and a central portion of an inner surface of a second mirror of the plurality of mirrors coupled to the second frame surface, the at least one frame portion is spaced from the inner surface of the first mirror and curves from the first frame surface, the central portion of the first mirror is coupled to the first frame surface by an adhesive, the adhesive having a coefficient of thermal expansion about equal to a coefficient of thermal expansion of the first mirror, the first mirror extending further than the first frame surface in a direction along the axis, wherein the first mirror has a first edge adjacent to a second edge of the second mirror and a gap is between the first edge and the second edge.