The subject of the invention is a transparent substrate (6) having at least one antireflection coating, made from a film (A) comprising multiple thin layers of alternately high and low refractive indexes....http://www.google.es/patents/US7833629?utm_source=gb-gplus-sharePatente US7833629 - Transparent substrate comprising an antireflection coating
Transparent substrate comprising an antireflection coating
