Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Connectors
Patent
1998-07-23
1999-08-10
Mai, Huy
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Connectors
351 47, 351 57, G02C 500
Patent
active
059367024
ABSTRACT:
The clip-on sunglasses assembly includes four clasps for engaging the frame of eyeglasses. Each includes a screw which secures the sunglass lens within a recess in the clasp. The end of the screw is provided with a central recess defining a circular edge. As the screw is tightened, the edge contacts the lens and forms a circular groove in the lens surface by displacing a small amount of lens material. The circular contact area distributes the stress normally concentrated at a point on the lens by a conventional screw, thereby reducing the chances of cracking the lens. Two clasps are welded to the ends of a bridge member and affixed to pre-shaped lenses at marked locations. Each clasp has a bent tail bar enclosed by a heat shrinkable tube.
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Epstein, Esq. Robert L.
James, Esq. Harold
Mai Huy
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