照明工程学报2016，Vol.27Issue(1)：91-95,5.DOI:10.3969/j.issn.1004-440X.2016.01.018
基于多椭球反射器的LED汽车近光灯设计
Design of LED Headlamp Low-beam Based on Multi-ellipsoid Reflector
摘要
Abstract
A projection type LED headlamp low-beam consists of muti-ellipsoid reflectors , baffles and free surface lens is designed based on the approximate lambertian emitting characteristics of LED chips , provisions in GB 25991—2010 and non-imaging optics theory .The simulation has been done based on Monte-Carlo optical tracing method and the light distribution performance of a headlamp sample has been process .The results show that the muti-ellipsoid reflectors , 17 degree oblique angle of the baffles and the free surface lens are easy to form not only the low-beam light type which is wide in horizontal direction and narrow in vertical direction but also the clear cut-off line . The low-beam system meet the standard requirements , and the energy utilization rate increases nearly 10%.关键词
LED汽车近光灯/非成像光学/变截面椭球体反射器/自由曲面透镜Key words
LED headlamp low-beam/non-imaging optics/muti-ellipsoid reflector/free surface lens分类
交通工程引用本文复制引用
王静,蔡忆昔,包伟伟,李慧霞,李小华..基于多椭球反射器的LED汽车近光灯设计[J].照明工程学报,2016,27(1):91-95,5.基金项目
江苏省动力机械清洁能源与应用重点实验室资助项目(编号:QK12001) （编号:QK12001）
江苏省高校优势学科建设项目(苏政办发〔2011〕6号) （苏政办发〔2011〕6号）
江苏大学高级人才科研启动基金资助项目(编号:5503000025) （编号:5503000025）
