提出用正交柱面光栅构成定向散射屏的方法，其制作工艺简单成本低廉，可以广泛应用于显示领域。
The new directional diffuser consisting of two perpendicular lenticular sheets can be widely used in the display domain owing to its low cost and simple process.
漫散屏，柔光屏散射光线的介质，用在摄影中使背景柔和。
A medium that scatters light, used in photography to soften shadows.
对后投射屏外表面散射层的材料和厚度进行了探讨，给出了最佳的选择方案。
The material and thickness of the back project screen are discussed, and the best scheme is summarized as well .
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