US 12,216,210 B2
Multi-channel light detection and ranging (LIDAR) unit having a telecentric lens assembly and single circuit board for emitters and detectors
James Allen Haslim, Dublin, CA (US); Michael Bryan Borden, San Francisco, CA (US); and Daniel Thomas Sing, San Francisco, CA (US)
Assigned to AURORA OPERATIONS, INC., Pittsburgh, PA (US)
Filed by Aurora Operations, Inc., Pittsburgh, PA (US)
Filed on May 8, 2023, as Appl. No. 18/313,777.
Application 18/313,777 is a continuation of application No. 17/004,712, filed on Aug. 27, 2020, granted, now 11,681,048.
Claims priority of provisional application 63/059,190, filed on Jul. 31, 2020.
Prior Publication US 2023/0324559 A1, Oct. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 17/931 (2020.01); G01S 7/481 (2006.01); G01S 17/06 (2006.01); G01S 17/42 (2006.01); G05D 1/00 (2006.01); G05D 1/628 (2024.01); G05D 1/646 (2024.01)
CPC G01S 17/931 (2020.01) [G01S 7/4813 (2013.01); G01S 7/4815 (2013.01); G01S 7/4816 (2013.01); G01S 7/4817 (2013.01); G01S 17/06 (2013.01); G01S 17/42 (2013.01); G05D 1/0212 (2013.01); G05D 1/0238 (2013.01); G05D 1/628 (2024.01); G05D 1/646 (2024.01)] 18 Claims
OG exemplary drawing
 
1. A light detection and ranging (LIDAR) system for a vehicle, comprising:
a plurality of emitters disposed on a first portion of a circuit board, the plurality of emitters respectively configured to emit a laser beam;
a first optical element assembly configured to receive the laser beam, wherein the first optical element assembly comprises a first field flattening optical element;
a second optical element assembly configured to receive a plurality of reflected laser beams, wherein the second optical element assembly comprises a second field flattening optical element, the first field flattening optical element being thinner than the second field flattening optical element; and
a plurality of detectors disposed on a second portion of the circuit board, spaced apart from the plurality of emitters in a first direction, the plurality of detectors respectively configured to receive the plurality of reflected laser beams through the second optical element assembly,
wherein at least one of the plurality of emitters comprises:
a laser diode configured to emit the laser beam parallel to the circuit board in the first direction; and
a collimation optical element configured to reflect the laser beam towards the first optical element assembly.