A new integrated LED automotive headlight with laser supplement light

摘要

Automobile lighting system is an important guarantee for the safe driving of cars at night. In view of the complex structure of the current LED headlamp system and weak penetrating ability, a laser-filled LED far and near beam integrated automotive headlamp optical system is designed. Theoretical calculations show that the low beam light passes through the low beam cone set. The light device is totally reflected, and the outgoing light is condensed to the focal point of the baffle. The focal point of the baffle coincides with the upper focal point of the special-shaped lens, and the required low beam is obtained by the upper part of the special-shaped lens reflected. Whether the center of the high-beam cone condenser coincides with the lower focus of the special-shaped lens to obtain the required high-beam. The laser light source is emitted through the small hole in the lower part of the special-shaped lens, and the center of the laser spot and the center of the high beam spot are overlapped by the deflection angle. The high beam fill light effect verifies the rationality of the optical system. The simulation results show that the designed optical system of the automobile headlamp complies with the national standards. The headlamp optical system has a reduced volume and strong penetrating ability, which is in line with the current development direction of laser car lights and smart car lights.