US 12,105,220 B2
Dynamic outgoing beam divergence tuning in LiDAR
Yue Lu, Mountain View, CA (US); and Youmin Wang, Berkeley, CA (US)
Assigned to BEIJING VOYAGER TECHNOLOGY CO., LTD., Beijing (CN)
Filed by BEIJING VOYAGER TECHNOLOGY CO., LTD., Beijing (CN)
Filed on Dec. 29, 2020, as Appl. No. 17/136,938.
Application 17/136,938 is a continuation of application No. 17/135,959, filed on Dec. 28, 2020.
Prior Publication US 2022/0206120 A1, Jun. 30, 2022
Int. Cl. G01S 7/481 (2006.01); G01S 7/497 (2006.01); G01S 17/08 (2006.01); G01S 17/89 (2020.01); G01S 17/931 (2020.01); G02B 26/08 (2006.01); G02B 27/09 (2006.01); G02B 27/30 (2006.01)
CPC G01S 7/4816 (2013.01) [G01S 7/4814 (2013.01); G01S 7/4817 (2013.01); G01S 7/497 (2013.01); G01S 17/08 (2013.01); G01S 17/89 (2013.01); G01S 17/931 (2020.01); G02B 26/0875 (2013.01); G02B 27/0955 (2013.01); G02B 27/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical sensing method for an optical sensing system, the method comprising:
determining environment information of an environment surrounding the optical sensing system, wherein the environment information indicates a current detection distance of the optical sensing system;
determining a divergence amount for outgoing optical signals emitted by an optical source of the optical sensing system, based on the current detection distance, wherein the divergence amount is a target divergence amount determined to be smaller at a larger current detection distance to reduce a beam spot size of returning optical signals;
dynamically adjusting the outgoing optical signals to the target divergence amount; and
emitting the outgoing optical signals to the environment.