反射式ADB模组的光学设计

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AD...

Optical Design of Reflective ADB Module

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.