Production of optical device comprises coating first region of substrate with coating having first layer with exchange atoms, removing substrate material from second region, and exchanging substrate ions with exchange ions

摘要

The production of an optical device comprises coating a first region of a substrate (1) with a coating (8) having a first layer (7) with exchange atoms in neutral or ionic form, removing substrate material from a second region next to the first region, and exchanging substrate ions with exchange ions from the first layer. An independent claim is also included for an optical device produced by the above process.