Acid-resistant glasses for microoptical structuring

摘要

The invention relates to optical glasses which have glass properties optimised for the production of microoptical structures. The object of the invention is to produce hydrolysis- and acid-stabilised glasses which allow the formation of extended transparent regions of increased refractive index (X10% >/= 200 mu m; DELTA n >/= 0.05) through Na/Ag ion exchange. The object is achieved according to the invention in that the glasses are composed of from 11.4 to 30.0 mol% of Na2O, from 8.7 to 26.4 mol% of MgO from 50.0 to 70.8 mol% of SiO2. he