Niedertemperaturverfahren zur Herstellung einer Antireflexionsbeschichtung

摘要

The invention concerns a method for making an antiglare stack by vacuum evaporation on an organic substrate ( 1 ) at a temperature lower than 150° C., comprising steps which consist in depositing at least a layer of material having a refractive index different from that of MgF₂ ( 4, 4 '), preparing the surface of the thus coated substrate, and depositing an outer MgF₂ layer ( 5 ) without ionic assistance. The resulting antiglare stack on organic substrate exhibits good adherence and good scratch resistance. The invention is applicable to ophthalmic lenses.