US 12,204,054 B2
Lidar test systems
Chan Fong Tan, Pulau Pinang (MY); Christopher Coleman, Santa Clara, CA (US); Paul L. Corredoura, Redwood City, CA (US); Bogdan Szafraniec, Sunnyvale, CA (US); and Mong Long Ang, Pulau Pinang (MY)
Assigned to KEYSIGHT TECHNOLOGIES, INC., Santa Rosa, CA (US)
Filed by Keysight Technologies, Inc., Santa Rosa, CA (US)
Filed on Dec. 18, 2020, as Appl. No. 17/126,085.
Claims priority of provisional application 63/030,672, filed on May 27, 2020.
Prior Publication US 2021/0373137 A1, Dec. 2, 2021
Int. Cl. G01S 7/497 (2006.01); G02B 5/10 (2006.01); G02B 26/02 (2006.01); G01S 17/10 (2020.01); G01S 17/931 (2020.01)
CPC G01S 7/497 (2013.01) [G02B 5/10 (2013.01); G02B 26/023 (2013.01); G01S 17/10 (2013.01); G01S 17/931 (2020.01)] 19 Claims
OG exemplary drawing
 
1. A system for testing a light detection and ranging (LIDAR) device under test (DUT), the system comprising:
an ellipsoid having a first focal point and a second focal point, the ellipsoid being adapted to receive the LIDAR DUT at the first focal point, wherein light transmitted from the LIDAR DUT is incident on the second focal point; and
an optical waveguide or an optical element coupled to the second focal point, and adapted to transmit light from the second focal point to a link comprising a delay device that provides a delay to emulate a desired distance.