基于B样条曲面的LED汽车近光灯光学设计  

Optical Design of LED Dipped Headlight Based on B-spline Surfaces

作　　者：倪建[1] 朱向冰[1] 陈巧云[1] 

机构地区：[1]安徽师范大学物理与电子信息学院,安徽芜湖241000

出　　处：《中国照明电器》2010年第8期10-13,16,共5页China Light & Lighting

基　　金：安徽省自然科学基金(090414173);2009年度芜湖市科技计划项目

摘　　要：近光灯是汽车的重要安全部件,LED近光灯已成为汽车近光灯发展的一个重要方向。从抛物面型B样条曲面出发,结合光线追迹原理及近光灯的配光标准,推算曲面的法向矢量组,进而构建满足要求的自由曲面反射器。实验模拟的结果满足近光灯的国家配光标准。The dipped headlights are important components for safety. LED dipped headlights have been more and more used in dipped headlights. By using parabolic B-spline surfaces, the normal vector groups of surfaces are calculated according to the principle of ray tracing and the distribution requirements of dipped headlight. And then, the free-form surface reflector meeting the requirements can be constructed. The simulation results can meet the national standards of photometric characteristics.

关 键 词：光学设计 LED近光灯 B样条曲面 自由曲面 反射器 白光LED 

分 类 号：U463.65[机械工程—车辆工程]