Patent ID: 8449109

Claim:
An eyeglass lens having a plurality of layers comprising: a transparent substrate layer; a precious metal layer, facing an observer of the lens; a composite anti-reflection layer disposed between the substrate and the precious metal layer, wherein the composite anti-reflection layer comprises: a first anti-reflective layer in contact with the transparent substrate, the first anti-reflective layer being made from a material selected from the group consisting of chromium, nickel, iron, titanium, aluminum, zinc, lead, tin, tantalum, tungsten, and alloys thereof, and a second anti-reflective layer facing the observer of the lens, the second anti-reflective layer being made from a material selected from the group consisting of silicon oxides, titanium oxides, tantalum oxides, and zirconium oxides; a first anti-scratch varnish layer is interposed between the anti-reflection layer and the substrate; and a second anti-scratch varnish layer is positioned on a side of the substrate opposite to the first varnish layer, wherein: the substrate is sandwiched between the first and second anti-scratch varnish layers, and both anti-scratch varnish layers comprise thermosetting polysiloxane.