Abstract: The invention provides techniques for making polycarbonate or plastic lenses. In one exemplary embodiment, for example, an electrical discharge is applied to a polarized film surface and a treatment applied on the polarized film to make a glue card. An adequate amount of adhesive glue is spread between the polarized film glue card and a polycarbonate lens, and a one-unit lens is formed by photochemical reaction technology. Thermosetting monomer is poured between the unit lens and a glass mold, and heated evenly to create a solid one-piece lens. The thermosetting monomer may be a photochromic or transparent monomer. These or substantially similar techniques may be used to produce polycarbonate polarized lenses, polycarbonate photochromic lenses, polycarbonate photochromic polarized lenses, plastic polarized lenses, plastic photochromic lenses, and plastic photochromic polarized lenses.

Abstract: A method for making transparent finished or semi-finished polycarbonate lens first using electrical discharge treatment of the lens surface under certain conditions to improve adhesion of the layers. An electrical discharge is applied to a PVA polarized film surface and to a treatment applied on a PVA film to make a PVA film glued card. By spreading adequate adhesive glue between the PVA film glued card and the polycarbonate lens, one unit lens is formed by photo-chemical reaction technology. Using this unit lens as a back mold I and setting on a front glass mold II, monomer is then poured between these two molds and heated evenly to create a solid one piece lens. A hard coating layer is preferably applied to both concave and convex side of polycarbonate polarized or photochromic lens. The method is particular well suited for casting unique features to bond on polycarbonate lens which normally has a limitation to apply special chemical or parts due to high temperature in the injection molding process.