基于Light Tools光学分析软件分析了光在球形微结构扩散板和圆锥及金字塔两种非球形微结构扩散板内的传输过程,比较了球形微结构扩散板和非球形微结构扩散板的均匀度和透光率；进一步分析了金字 塔非球形微结构的顶角γ和切削量H对扩散板均匀度和透光率的影响.结果表明,金字塔非球形微结构扩散板的均匀度高于圆锥非球形微结构和球形微结构两种扩散板的均匀度,透光率介于圆锥非球形微结构扩散板和球形微结构扩散板之间.金字塔非球形微结构顶角γ越大,透光率越高,当γ=100°时,扩散板的综合光学性能最好,透光率达82.1％,均匀度达82.4％;切削量H越大,透光率越大,均匀度先增大后减小,当H=0.04 mm,扩散板的综合光学性能最好,透光率为84.2％,均匀度为86.2％.
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