【摘要】 讨论了人眼检测荫罩均匀度的原理及能力，将视觉明暗的空间频率特性概念及有关实验结果引入荫罩不均匀度研究中，并通过郎氏环及有关人眼视力的实验结果建立了人眼对荫罩不均匀区边缘感知的数学模型．通过上述工作，得到了人眼察觉荫罩不均匀度的上限，为图形发生器测控系统等性能指标的确定提供了“人”这一环节的定量依据．更多还原

【Abstract】 This paper introduces concepts and experimental results of bright dark space frequency characteristic and Landits ring about eye vision to the study on TV shadow mask uniformity, and obtains the un uniformity upper limits of the TV shadow mask when exceeding the upper limits human eyes can see the un uniformity, thus laying a quantitative basis for the human link on determining the performance specifications of artwork generators.更多还原