关于人眼视觉的一些计算

本文着重介绍了在工程技术中常用的一些关于视觉的计算。首先介绍模型眼,然后介绍有关相对光谱光视效率、主观亮度、瞳孔直径、网膜刺激大小、对比度及调制度、视力与分辨率的计算,最后说明人眼极限分辨角与亮度、对比度的关系,并举例说明了在夜视仪中的应用。

Calculations Relating to the Vision of Human Eye

In this paper,some calculations of the vision,which is commonly used in theengineering,are particularly shown.First,the model eye is introduced,then thecalculations of relative spectrum sensitivity,objective brightness,pupil diame-ter,retina stimulus,contrast,modulation ratio,sight,as well as resolving po-wer are given,at last,relations between limiting resolving angle of human eyeand brightness,contrast are shown.In addition,some examples are given to showtheir applications in the night vision device。