US 12,345,408 B1
Light source module
Yu-Ching Cheng, Tainan (TW)
Assigned to HIMAX TECHNOLOGIES LIMITED, Tainan (TW)
Filed by HIMAX TECHNOLOGIES LIMITED, Tainan (TW)
Filed on May 22, 2024, as Appl. No. 18/671,973.
Int. Cl. F21V 5/00 (2018.01); F21Y 113/00 (2016.01); F21Y 115/30 (2016.01)
CPC F21V 5/007 (2013.01) [F21Y 2113/00 (2013.01); F21Y 2115/30 (2016.08)] 12 Claims
OG exemplary drawing
 
1. A light source module having a wide field of view (FOV), the light source module comprising:
a plurality of point light sources configured to respectively emit a plurality of light beams; and
a total internal reflection (TIR) lens array disposed on paths of the light beams and comprising:
a transparent substrate, wherein the transparent substrate is a substrate of a bottom emitting vertical cavity surface emitting laser (VCSEL), and the point light sources belong to the bottom emitting VCSEL; and
a plurality of TIR lenses arranged on the transparent substrate, wherein the transparent substrate is located between the point light sources and the TIR lenses, each of the TIR lenses has an inclined surface inclined with respect to the transparent substrate, and inclined surfaces of the TIR lenses are configured to totally internally reflect the light beams to form the wide FOV.