Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses
Patent
1995-11-29
1996-12-10
Dang, Hung
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
351 90, 351122, G02C 108, G02C 514
Patent
active
055835830
ABSTRACT:
A pair of sunglasses having an elongated sunglasses frame that is entirely formed from a single sheet of flat aluminum or titanium stock that is bent into a predetermined shape. Left and right hinge mounting portions are formed adjacent the respective edges of the sunglasses frame. A left lens aperture is formed in the sunglasses frame between the left hinge mounting portion and the bridge portion. A right lens aperture is formed in the sunglasses frame between the right hinge mounting portion and the bridge portion. The dimensions of the respective apertures have a greater height and a greater width on the front surface of the sunglasses frame so that lenses pressed into the respective apertures through their front surface edge won't pass out its rear surface edge. A groove is formed in the periphery of each of the apertures and they mate with a ridge formed on the periphery of the respective left and right sunglasses lenses. The metal material of the sunglasses frame permits sufficient stretching or elongation of the material around the lens apertures to allow the sunglass lenses to snap into the grooves around the perimeter of the lens apertures.
REFERENCES:
patent: 2561402 (1951-07-01), Nelson
patent: 3953114 (1976-04-01), Bidgood
Dang Hung
Logan II Charles C.
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