Abstract: A method of making a polymeric laminated wafer comprising different film materials that are softenable and formable at different softening temperatures corresponding with the film materials.

Abstract: A photochromic polyurethane laminate that is constructed to solve certain manufacturing difficulties involved in the production of plastic photochromic lenses is disclosed. The photochromic laminate includes at least two layers of a resinous material and a photochromic polyurethane layer that is interspersed between the two resinous layers and which contains photochromic compounds. The polyurethane layer is formed by curing a mixture of a solid thermoplastic polyurethane, at least one isocyanate prepolymer, at least one photochromic compound, and a stabilizing system.

Abstract: A method of making a polymeric laminated wafer comprising different film materials that are softenable and formable at different softening temperatures corresponding with the film materials.

Abstract: A cast photochromic lens including a photochromic film and a cast resin, curable by heat or radiation.

Abstract: A photochromic polyurethane laminate wherein the photochromic polyurethane layer of the laminate has been crosslinked with a isocyanate-active prepolymer using a crosslinking agent. The crosslinking agent is formulated to have at least three functional groups that are reactive with functional groups of the polyurethane or of the isocyanate-active prepolymer. A method of making the photochromic polyurethane laminate includes steps of causing the crosslinking.

Abstract: A photochromic polyurethane laminate that is constructed to solve certain manufacturing difficulties involved in the production of plastic photochromic lenses is disclosed. The photochromic laminate includes at least two layers of a resinous material and a photochromic polyurethane layer that is interspersed between the two resinous layers and which contains photochromic compounds. The polyurethane layer is formed by curing a mixture of a solid thermoplastic polyurethane, at least one isocyanate prepolymer, at least one photochromic compound, and a stabilizing system.

Abstract: A method of making a polymeric laminated wafer comprising different film materials that are softenable and formable at different softening temperatures corresponding with the film materials.

Abstract: A method of making a polymeric laminated wafer comprising different film materials that are softenable and formable at different softening temperatures corresponding with the film materials. Also disclosed is a laminated wafer wherein a first layer has different thermal properties than a second layer of the wafer.

Abstract: A cast photochromic lens including a photochromic film and a cast resin, curable by heat or radiation.

Abstract: A cast photochromic lens including a photochromic film and a cast resin, curable by heat or radiation.

Abstract: The present invention is directed to the incorporation of melanin in an optical article with polarization properties. Such an article includes a first polymer layer containing a polarizing agent, a second polymer layer containing melanin and wherein the second polymer layer is disposed upon the first polymer layer.

Abstract: The present invention relates to unique reflective polarized lenses that are anti-dazzling and reduce glare. In particular, it relates to polarized lenses utilizing a reflective polarizer, a high-transmission absorptive polarizer and photochromic treatment in a unique combination that can be injection molded to make thermoplastic ophthalmic lenses.

Abstract: The present invention is directed to the incorporation of melanin in an optical article with polarization properties. Such an article includes a first polymer layer containing a polarizing agent, a second polymer layer containing melanin and wherein the second polymer layer is disposed upon the first polymer layer.

Abstract: A functional wafer of the present invention is disclosed to solve manufacturing difficulties involved in the production of optical elements such as polycarbonate ophthalmic lenses. The functional wafer may include a front layer, a functional layer, and a back layer, whereas the front layer and the back layer are bonded to the functional layer with or without additional adhesive. Said functional layer is smaller than at least the front layer by about 0.5 mm to 5 mm along the perimeter edge. A functional wafer of this construction can be conveniently and effectively incorporated into a lens through an insert injection molding process, in which said back layer will be in contact with the lens material.

Abstract: The present invention is directed to the incorporation of melanin in an optical article with polarization properties. Such an article includes a first polymer layer containing a polarizing agent, a second polymer layer containing melanin and wherein the second polymer layer is disposed upon the first polymer layer.

Abstract: A cast photochromic lens including a photochromic film and a cast resin, curable by heat or radiation.

Abstract: A method of making a polymeric laminated wafer comprising different film materials that are softenable and formable at different softening temperatures corresponding with the film materials. Also disclosed is a laminated wafer wherein a first layer has different thermal properties than a second layer of the wafer.

Abstract: A functional wafer of the present invention is disclosed to solve manufacturing difficulties involved in the production of optical elements such as polycarbonate ophthalmic lenses. The functional wafer may include a front layer, a functional layer, and a back layer, whereas the front layer and the back layer are bonded to the functional layer with or without additional adhesive. Said functional layer is smaller than at least the front layer by about 0.5 mm to 5 mm along the perimeter edge. A functional wafer of this construction can be conveniently and effectively incorporated into a lens through an insert injection molding process, in which said back layer will be in contact with the lens material.

Abstract: A functional wafer of the present invention is disclosed to solve manufacturing difficulties involved in the production of optical elements such as polycarbonate ophthalmic lenses. The functional wafer may include a front layer, a functional layer, and a back layer, whereas the front layer and the back layer are bonded to the functional layer with or without additional adhesive. Said functional layer is smaller than at least the front layer by about 0.5 mm to 5 mm along the perimeter edge. A functional wafer of this construction can be conveniently and effectively incorporated into a lens through an insert injection molding process, in which said back layer will be in contact with the lens material.

Abstract: The present invention is directed to the incorporation of melanin in an optical article with polarization properties. Such an article includes a first polymer layer containing a polarizing agent, a second polymer layer containing melanin and wherein the second polymer layer is disposed upon the first polymer layer.