REFLECTION-REDUCING COATING FOR AN OPTICAL ELEMENT MADE OF ORGANIC MATERIAL

摘要

A multi-layered reflection-reducing coating for an optical element made of organic material with phototropic properties. The coating is characterized by the fact that the reflection of the coating transmitted in the spectral range between 330 nm and 380 nm is less than 4% and the reflection in the spectral range between 290 nm and 330 nm is greater than 15%. This reflection behaviour ensures that the excitation of the phototropic effect with unduly short-wave light does not reduce the duration of the phototropic effect. In addition, by appropriately selecting the reflection properties, it is possible to achieve a desired excitation of phototropic molecules incorporated in specific steric places, and thus an influence on the kinetics and colour of the phototropic effect.