光学系统黑斑法杂光系数和PST间的联系

RELATIONS BETWEEN PST AND VEILING GLARE INDEX OF OPTICAL SYSTEM

ＰＳＴ（点源传递函数）是杂光分析程序常用的输出结果形式，杂光系数则是杂光实验测量最常用的结果表示方式。本文根据辐射传热理论，建立了杂光分析计算程序的输出结果ＰＳＴ和用黑斑法进行杂光测量所得的杂光系数Ｖ之间的联系，并给出了相应的解析表达式。

PST is a common output result of stray light analysis programs of optical systems,and Veiling Glare Index is a common way to characterize stray light in optical systems. Based on the radiational energy transfer theory,we developed an analytical formula which reflects the ralations between PST and Veiling Glare Index. It makes the comparison between them easier.