Glass lens with ion-exchanged antireflection coating and process for manufacture thereof

摘要: There is disclosed a glass ophthalmic lens including an ion-exchanged antireflection coating. Metal oxide films TiO 2 , CeO ZrO La O 3 Nd Al and SiO when evaporated on lenses in vacuum chamber by electron-beam techniques form hard optical coatings which are chemically stabile at high temperatures allow potassium sodium ions to traverse the thickness thereof without changing chemical composition or physical integrity thereby enhancing ability of be conventional ion-exchange treatment. This allows coated pass impact-resistant standards ANZI Z80.1 for prescription USAS Z87.1 safety lenses.