铁路信号灯球面菲涅尔透镜组计算方法的探讨  

Research on the Calculating Method of Spherical Frensnel Lens Group for Railway Signallight

作　　者：孙立范[1] 王东华[1] 王朝霞[1] 

机构地区：[1]铁道部科学研究院

出　　处：《中国铁道科学》1998年第3期102-110,共9页China Railway Science

摘　　要：给出一种铁路信号灯透镜组的计算方法、公式组及光路计算程序。运用该程序并与ＡｕｔｏＣＡＤ相结合使设计透镜组的速度加快、精度提高。由于采用减小透镜组焦距、改变透镜间距等办法，使信号灯发光强度得以提高。A calculating method,the formulas and programs for railway signallight lens group are discussed in this article.These programs used in combination with software Auto CAD,can speed up design work and upgrade accuracy.As a reoutol reducing the focus length and changing the distance between the lenses,the luminous intensity of the signallight is increased greatly.

关 键 词：信号灯 铁路信号 计算 透镜 设计 

分 类 号：U284.113[交通运输工程—交通信息工程及控制]