For optical and opto-electronic applications, Fraunhofer ISC develops and licenses superior optical polymers and corresponding process techniques. Thereby, µm-structures, such as micro-optical components, wave guides, lenses and gratings but also illumination optics can be created with a resolution down to 100 nm (roughness ≤ 20nm). Additive processes are used in order to generate sub-µm resolution structured macroscopic elements of several cm with high optical quality. The materials developed at Fraunhofer ISC are thermally stable hybrid polymers (ORMOCER^®) and composites as well as wet-processed inorganic layers. A wide range of refractive indices and transmission properties can be addressed, also in combination with various electrical, mechanical, thermal or biological specifications.