Polarized lens and method of making polarized lens

Details Polarized lens and method of making polarized lens Polarized lens and method of making polarized lens

2011-04-19

2011-04-19

Del Sole, Joseph S (Department: 1744)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Reshaping or treatment of an optical preform

C264S001320, C264S001340, C264S001700

Reexamination Certificate

active

07927522

ABSTRACT:
An eyeglass lens is made of layers which include an outer, convex hard coating, a layer of hard epoxy, a PVA film, a layer of soft epoxy, a layer of adhesive, a base material, and an inner, concave hard coating. The major steps in producing the lens are to 1: prepare a clean, soft PVA film; 2: form the PVA film into the desired curved shape using a convex mold; 3: add hard epoxy to the outer, convex side of the PVA film; 4: add soft epoxy to the inner, concave side; 5: add the base material to the inner, concave side; and 6: harden and package the lens.

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