The utility model discloses a projection screen, which comprises a pyramid prism array, a reflective film and a base material.
本实用新型公开一种投影荧幕，包括一角锥棱镜阵列、一反射膜及一基材。
The pyramid prism array includes a plurality of pyramid units, and each pyramid unit provides a cone-shaped surface;
角锥棱镜阵列包括多个角锥单元，每一角锥单元提供一锥状表面。
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