US 12,316,067 B2
Apparatus for projecting linear laser beams
Yunpeng Song, San Ramon, CA (US)
Assigned to Liturex (Guangzhou) Co. Ltd., Guangzhou (CN)
Filed by Liturex (Guangzhou) Co. Ltd., Guangzhou (CN)
Filed on Dec. 18, 2023, as Appl. No. 18/544,304.
Application 18/544,304 is a continuation of application No. 17/030,138, filed on Sep. 23, 2020, granted, now 11,909,169.
Claims priority of provisional application 62/958,251, filed on Jan. 7, 2020.
Prior Publication US 2024/0128707 A1, Apr. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01S 5/00 (2006.01); G01S 7/481 (2006.01); G02B 26/08 (2006.01); H01S 5/40 (2006.01); G02B 19/00 (2006.01)
CPC H01S 5/0071 (2013.01) [G01S 7/4815 (2013.01); G02B 26/0833 (2013.01); H01S 5/4012 (2013.01); H01S 5/4075 (2013.01); G02B 19/0057 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a laser source array;
a prism array pair; and
a first cylinder lens;
wherein the prism array pair is positioned between the laser source array and the first cylinder lens to reduce a pitch between laser beams from the laser source array to a predetermined value, wherein a first prism array of the prism array pair is shaped as a piano-convex prism with a flat surface to receive collimated and parallel laser beams from a cylinder lens array; and
wherein the first cylinder lens is to focus the laser beams from the prism array pair onto a microelectromechanical system (MEMS) mirror, which redirects the laser beams as a linear laser beam towards a predetermined direction.