发明授权
US06846098B2 Light diffuser with variable diffusion 失效
具有可变扩散的光扩散器

Light diffuser with variable diffusion
摘要:
A light diffuser comprises a film bearing a macro diffusion efficiency variation in which the efficiency variation is greater than 5% between two locations that are separated by at least 2 cm where the diffuser comprises a base and a plurality of convex or concave complex lenses on the surface of the base.
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