用屏幕法检验汽车前照灯是许多汽车修配厂常用的方法。这种方法虽然经济,但存在两个缺点,一是用这种方法只能检验出光束的偏斜方向和偏移量,不能测量前照灯的发光强度;二是光束的垂直偏移量计算比较麻烦。本文即针对这两个问题提出解决的方法。一、用照度计间接测量前照灯的发 The use of screen test car headlamps is commonly used in many auto repair shop. Although this method is economical, but there are two shortcomings, first, this method can only detect the deflection of the beam direction and offset, can not measure the headlamp luminous intensity; the second is the vertical beam offset calculation kind of hard. This article aims to address these two issues to solve the method. First, the indirect measurement of headlamps hair with the light meter