Auer Lighting has upgraded its outstanding MicroDyn^® coating technology to high precision coating designs for superior reflective or transmitting applications down to wavelengths of 220 nm, by using all advantages of HfO₂ to full capacity.

 All coatings are highly durable up to temperatures above 700°C and combine unique spectral edge accuracy within ± 1 nm with high optical uniformness. A huge variety of geometries are possible, like reflectors, filters, single lenses, lens arrays and collimators. A typical example is the state-of-the-art bandpass filter for a selective UV range from 220 nm to 250 nm. The transmission range and the blocking range can be adapted according to different specifications by variation of the applied HfO₂ SiO₂ coating design.