Vented eyeglass lens

Details Vented eyeglass lens Vented eyeglass lens

1996-02-29

1997-06-10

Dang, Hung X.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With moisture prevention or absorption

351 41, 2435, G02C 108

Patent

active

056381450

ABSTRACT:
Disclosed is a dual-lens vented eyeglass. In one embodiment, each lens is provided with a plurality of apertures extending therethrough, at the junction between the lens and the surrounding frame. In another embodiment, a plurality of apertures are provided in the frame, surrounding the lens. The apertures optimize ventilation, with minimal intrusion into the optical zone.

REFERENCES:
patent: 163648 (1875-05-01), Gall
patent: 2027037 (1936-01-01), Gottlieb
patent: 3160735 (1964-12-01), Aufricht
patent: 3368221 (1968-02-01), Anderson
patent: 3497294 (1970-02-01), Volk
patent: 4240718 (1980-12-01), Wichers
patent: 5191364 (1993-03-01), Kopfer
patent: 5239320 (1993-08-01), Allendorf et al.
patent: 5428411 (1995-06-01), Kopfer

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