US 10,893,175 B2
Shadowless camera housing
Jeffrey Coleman, Santa Ana, CA (US); Lenny Tan, Diamond Bar, CA (US); Robert Charnock, Anaheim, CA (US); Zheng Li, Irvine, CA (US); and Reza Khamsi, Mission Viejo, CA (US)
Assigned to Bendix Commercial Vehicle Systems LLC, Elyria, OH (US)
Filed by Bendix Commercial Vehicle Systems LLC, Elyria, OH (US)
Filed on Feb. 27, 2019, as Appl. No. 16/287,905.
Prior Publication US 2020/0274995 A1, Aug. 27, 2020
Int. Cl. H04N 5/225 (2006.01); F21V 8/00 (2006.01); B60R 1/00 (2006.01)
CPC H04N 5/2252 (2013.01) [B60R 1/00 (2013.01); G02B 6/0096 (2013.01); H04N 5/2253 (2013.01); H04N 5/2254 (2013.01); B60R 2300/103 (2013.01); B60R 2300/8006 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A camera assembly comprising:
a circuit board on which an imager is mounted;
a lens assembly mounted over the imager to the circuit board;
a first infrared light source mounted on the circuit board at a first location that corresponds to a driver area of a passenger compartment;
a second infrared light source mounted on the circuit board at a second location that corresponds to a passenger area of the passenger compartment;
a first light pipe mounted to the circuit board at the first location;
a second light pipe mounted to the circuit board at the second location; and
a housing comprising a front side and a rear side, wherein the circuit board, lens assembly, first and second infrared light sources, and first and second light pipes are disposed in the housing,
wherein the first and second light pipes extend from the circuit board to the front side of the housing such that light is conveyed from the first and second infrared light sources, respectively, to an illumination exit plane of the camera assembly at the front side of the housing, which housing thereby does not obstruct respective illumination cones produced at the illumination exit plane,
wherein an end of the first and second light pipes, respectively, each have a textured exit geometry providing a diffused, light cone, and
wherein a diameter of the end of the first and second light pipes, respectively, is between 5 and 6 mm.