基于ADB汽车前照灯的光学设计

Optical design of automobile headlamp based on ADB

  • 摘要: 为了避免由于远光灯使用不当而产生的一系列交通事故,且带给驾驶员更好的驾驶体验,设计了具有可以主动调整远光光束分布的自适应远光系统—ADB(adaptive driving beam)。基于非成像光学理论,采用照度优化设计法,通过计算来合理划分区域,控制相应LED的亮灭,以此达到不同远光光型的实现。通过蒙特卡洛模拟法追迹光线,测试结果表明:配光结果满足现行仅有的对自适应远光(ADB)配光规定,且当全部LED工作时,照度最大值为111 lx,模组光学系统效率为35.7%。

     

    Abstract: In order to avoid a series of traffic accidents caused by improper use of high beam lamps, and to give drivers a better driving experience, an adaptive driving beam (ADB) illumination system was designed, which can actively adjust the distribution of high beam. Based on the theory of non-imaging optics, the illumination optimization design method was adopted and the area was divided reasonably by calculation to control the brightness and extinguishing of corresponding LED, so as to achieve the different types of high beam. Through tracing the light with Monte Carlo simulation method, the simulation result shows that the final result of light distribution fulfills the current only for adaptive driving beam (ADB) light distribution regulation. When all the LEDs work, the maximum illumination value is 111 lx, and the efficiency of the module optical system is 35.7%.

     

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