Laser rear fog lamp with combined tail lamp and its usage method

Abstract

The invention relates to a laser rear fog lamp of combined taillight. The lamp comprises a lamp body and a laser device which is disposed on the lamp body and located in a fog lamp area, wherein the laser device comprises a radiator as well as a light projector and a drive circuit board installed on the radiator; and the light projector and the drive circuit board are installed on both sides of the radiator. The light projector comprises a shell body, an infrared laser array composed of over three infrared laser chips, a longitudinal refraction lens and a horizontal refraction lens, wherein the longitudinal refraction lens is installed in the shell body and located in front of the infrared laser chips; the longitudinal refraction lens comprises an outer convex arc face; the horizontal refraction lens installed in the front part of the shell body is located in front of the longitudinal refraction lens; and the inner side of the longitudinal refraction lens is a concave arc face. The lamp provided by the invention has the advantages that the lamp is striking in rainy and foggy days; and the lamp can emit red laser with high light-penetration ability, so that alarming effects are better, and travelling safety is ensured.

Description

technical field [0001] The invention relates to a laser rear fog lamp combined with a tail lamp and a using method thereof, belonging to the technical field of motor vehicle lamps. Background technique [0002] Fog is one of the culprits of major accidents. Driving in fog can effectively reduce the occurrence of rear-end collisions if you can prompt the vehicle behind you in time. Traditional rear fog lamps generally use halogen light source or LED light source. Whether it is halogen light source or LED light source, its ability to penetrate rain and fog is much weaker than that of red laser with narrow spectrum and strong directionality. Moreover, the light beams emitted by existing traditional fog lamps and LED fog lamps are all point light sources. Because the visible area is small, the eye-catching function of fog lamps in rainy and foggy days is weakened. Contents of the invention [0003] The object of the present invention is to provide a laser rear fog lamp with c...

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