摘要
应用光学反射原理推导了线光源经抛物面一次反射至测试点产生的光照度的计算方法,作为方法的一个特例,计算了2002CUMCM车灯问题的灯丝长度并给出了车灯半长与最小功率的关系曲线,进而与已有的文献结果作了对照比较.
A method for calculating the illuminance produced by a line source and reflected by a parabola is developed in this paper. As a simplified example, the problme A in CUMCM 2002, the optimal design of a line source headlight, is well solved and the correct relation between the power and the line length is presented.
出处
《大学数学》
北大核心
2008年第2期187-190,共4页
College Mathematics
关键词
抛物面反射器
照度
最小功率
paraboloidal reflector
illuminance
minimum power
