Patent ID: RE41834

Claim:
A set of lens-assembly parts comprising: (a) a base shaped to fit over the eyes, the base having a lens-receiving portion, one or more first slots situated around the periphery of the lens receiving portion, and opposite temple portions, each temple portion having a first opening; (b) a frame having an inner surface and an outer surface, the frame comprising one or more second slots and opposite temple portions, each of the temple portions having a second opening, the frame being shaped for registration with the base, wherein the first and second openings are in matching positions to jointly define a registration opening; (c) a lens shaped for positioning between the base and the frame, the lens having a plurality of tabs extending from the lens in direction substantially perpendicular to the outer and inner surfaces of the lens and cooperating with the first slots and second slots; and (d) one or more fasteners for tensioning the base against the frame, each of the fasteners engaging one registration opening.