Automobile lamp LED high-low beam integrated PES unit with ADB function

Abstract

The invention relates to an automobile lamp LED high-low beam integrated PES unit with an ADB function. A high-beam LED circuit board small assembly, a low-beam LED circuit board small assembly and a reflector are arranged in an optical module. A condenser is fixedly arranged right in front of the high-beam LED circuit board small assembly. When the low-beam LED circuit board small assembly works, light rays are reflected to a second focus by the reflector; most light rays are directly emitted into a lens, and small part of the light rays are refracted to enter the condenser and are then subjected to total reflection and refraction again on the front end face and the lower surface of the condenser correspondingly, so that the small part of the light rays do not enter the lens; thus a shading function is achieved, and in this way, the light emitted from the lens can form a low beam shape with a cut-off line. When the high-beam LED circuit board small assembly works, after being focused at the second focus by the condenser, part of light rays are directly emitted and then emitted into the lens; part of the light rays are subjected to total reflection when meeting the upper surface of the condenser, are emitted from the front end face of the condenser, and then emitted out after being emitted into the lens; thus a high-beam function is achieved.

Description

technical field [0001] The invention relates to a PES unit with integrated LED far and near beams and an ADB function for a car lamp, which belongs to the technical field of automobile headlamps. Background technique [0002] PES is an ellipsoidal headlamp lighting system. At present, the global automotive lighting market is experiencing an unprecedented technological innovation, that is, the research and development of intelligent automotive lighting systems brought about by the integration of new LED light sources, automotive electronics and artificial intelligence technology. The so-called smart car lighting system is not only to realize the traditional low beam follow-up steering function (AFS) C, V, E level, but also to realize various functions such as anti-glare high beam (ADB), so as to improve driving safety and comfort . [0003] The existing LED far and near light integrated PES unit with ADB function needs to use a shading plate in the process of switching betw...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing PES unit of the car lamp adopts the shading plate when switching the far and near light and the anti-dazzling function, which causes noise to affect the operation experience and troublesome reliability verification. The combination of shapes provides a compact size, easy switching between high and low beams, easy switching of high and low beam anti-dazzling functions, and higher reliability LED high and low beam integrated PES unit with ADB function

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