多反射镜式新型前照近光灯的设计  

Design of a Novel MR(Multi Reflector) Lowbeam Headlamp

作　　者：晏伟臻[1] 毛文炜[1] 

机构地区：[1]清华大学精密仪器系,北京100084

出　　处：《公路交通科技》1999年第4期76-78,共3页Journal of Highway and Transportation Research and Development

摘　　要：在汽车前照近光灯的设计中一直存在一个矛盾： 既要充分利用灯炮的光能， 使出射光强足够大， 又要防止出射光给对面司机造成眩目。为解决这个问题， 本文设计了一种新型的多反射镜前照近光灯， 该多反射镜采用双焦抛物柱面结构以充分利用光能， 同时多反射镜中部分单元为倾斜抛物柱面， 以生成清晰的对角明暗截止线， 防止眩目现象出现。The inherent dilemma in the design of a low?beam(passing?beam)headlamp pattern is a trade?off between providing sufficient visibility for the driver using the headlamp and protecting oncoming drivers from glare.To solve this problem,this paper presents a Multi Reflector which has a dual focal length parabolic cylinder construction to fully utilize the light emission of the light source. Also, some segments of the MR are of the tilted parabolic cylinder shape,so a sharp diagonal cutoffline can be realized.

关 键 词：多反射镜 对角明暗截止线 汽车 前照近光灯 

分 类 号：U463.651[机械工程—车辆工程]