Sun protection device for partially transparent protection of windows/facades has a unit of transparent material with a top planar boundary surface and a periodic structure of plane-parallel bodies

摘要

A unit of transparent material has an upper planar boundary surface (8) and a periodic structure of plane-parallel bodies of a type (1) designed as a hollow/transparent body with a refraction index smaller than the surrounding material or than simple boundary surfaces with the surrounding air that blank the unit off.