The astigmatic microstructures and condensing microstructures are radial arranged on out-light surface or in-light surface of the board.
散光微结构区及聚光微结构区间 隔排列的设置于板体的出光面或入光面上。
Astigmatic microstructures contain several cambered surface transmission microstructures, each of the cambered surface transmission microstructures possess an arc convex surface.
散光微结构区包含数个弧面透光微结构，每一弧面透光微结构具有圆弧凸面。
Astigmatic microstructures contain several cambered surface transmission microstructures, each of the cambered surface transmission microstructures possess an arc convex surface.
散光微结构区包含数个弧面透光微结构，每一弧面透光微结构具有圆弧凸面。
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