摘要
为解决复杂道路条件下的汽车夜间行车安全问题,避免会车时使对向车辆驾驶人员产生炫目效果,文中以非成像理论为基础并结合折反射定律,建立LED出射光线与接收面上远光分布点的对应投射关系。通过数值迭代的方法求解自由曲面离散点,并导入到3D软件中进行拟合建模,设计出一种通过控制对应LED亮灭,用以组合形成不同远光光型的反射式ADB光学系统。最终样件的实际测试结果表明,当该光学系统处于最大工作条件时,其出光效率达到34.3%,最大光照度值为134 lx,配光结果满足远光法规各测试点要求。
In order to solve the problem of car driving safety at night under complex road conditions and avoid the dazzling effect of the drivers of the opposing vehicle when meeting cars,the study is based on the non-imaging theory and combined with the law of refraction and reflection to establish the corresponding projection relationship between the emitting light of LED and the far-light distribution point on the receiving surface.The discrete points of the free-form surface are solved by numerical iteration,and are imported into 3D software for fitting modeling.A reflective adaptive driving beam optical system is designed to combine and form different high beam types by controlling the on and off of the corresponding LEDs.The test results of the final sample show that when the optical system is in the maximum working condition,the luminous efficiency reaches 34.3%,and the maximum illuminance value is 134 lx,which demonstrates that the light distribution results meet the requirements of high beam regulations.
作者
于存胜
姚红兵
黄立敏
杨夏军
吕万育
YU Cunsheng;YAO Hongbing;HUANG Limin;YANG Xiajun;Lü Wanyu(School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China;School of Science,Hehai University,Nanjing 210098,China;Changzhou Xingyu Automotive Lighting Systems Co., Ltd.,Changzhou 213000,China)
出处
《电子科技》
2022年第4期47-52,共6页
Electronic Science and Technology
基金
国家自然科学基金(51775253)
中央高校基本科研业务费专项(2019B02614)。
关键词
非成像光学
自由曲面反射面
自适应远光系统
配光调节
LED
汽车前照灯
超精密加工
自由曲面测量
non-imaging optics
freeform surface reflector
adaptive driving beam
light distribution regulation
LED
automobile headlamp
ultra-precision machining
freeform surface measurement
