TRANSMISSIVE OPTICAL MICROSTRUCTURE SUBSTRATES THAT PRODUCE VISIBLE PATTERNS
摘要
<p>A light transmissive structure such as a light diffuser includes a substrate having optical microstructures. The optical microstructures include at least one feature that varies across the substrate, so as to produce a visible indicia relative to a viewer of the light transmissive structure. Related diffusers and methods of fabrication are also described.</p>