多椭球投射式LED前照灯光学设计  

Optical design of projective LED headlight with dissymmetry ellipsoidal reflector

作　　者：高铁成[1] 艾艳锦[2] 黄椿维 罗静 付贤松[1] 牛萍绢 

机构地区：[1]天津工业大学信息与通信学院,天津300160 [2]天津职业大学 [3]天津市汽车灯厂,天津300410

出　　处：《光学技术》2008年第S1期32-33,37,共3页Optical Technique

基　　金：国家863计划资助项目(2006AA03A154);天津市科技支撑计划资助项目(07ZCKFGX02100)

摘　　要：LED光源具有寿命长、点亮速度快、节能等优点,非常适合作为新一代的汽车前照灯的主要光源。研究了使用LED光源和多椭球反射镜的投射式前照灯的设计方法,建立了光学系统模型。阐述了反射镜、挡板、透镜的设计思想。采用Cree xre-7090 LED作为光源,并在此基础上采用ASAP进行了计算机模拟。结果表明,可产生宽广但不高的光型,明暗截止线清晰。LEDs have many features including energy-savings,long life and quick light-on.They are well suited for the main light sources in the next generation of automobile headlamps.The design of LED headlight with dissymmetry ellipsoidal reflector is discussed.The optical model is made,and the design of reflector,shade and lens is discussed.Cree xre-7090 LED is used as the source,and the model is simulated with ASAP software.The simulation result shows that this system generates an widespread but not high distribution,and the cut-off is sharp.

关 键 词：LED 前照灯 ASAP 明暗截止线 反射镜 

分 类 号：TM923[电气工程—电力电子与电力传动]