OPTICAL FUNCTIONAL LAYERS, PARTICULARLY ZINC OXIDE-SULFIDE LAYERS HAVING A VARIABLE DIELECTRIC RESPONSE

摘要

The invention relates to a novel optical functional layer and to a production method thereof. According to the invention, the functional layer makes it possible to protect substances coated therewith from UV radiation, whereas electromagnetic radiation of larger wavelengths is transmitted. The inventive functional layer and the inventive production method are advantageous compared to the prior art in that they have a very precise adjustability of the relatively sharp absorption edge in the UV range.