Eyeglass construction

Details Eyeglass construction Eyeglass construction

1978-09-18

1980-02-05

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Brace arm or semi-rimless mounting

351105, 351109, G02C 104

Patent

active

041870077

ABSTRACT:
An eyeglass construction in which the separate lenses thereof are directly attached to a laterally extending brow bar includes a pair of rearwardly extending threaded posts adapted to pass through spaced openings in the upper peripheral portion of each lens whereby the lenses and brow bar are affixed to each other by nuts engaging said threaded posts, said openings and posts extending substantially perpendicular to the rear plane of each lens. Each of the posts is adapted to extend through a spacing bushing disposed between the opposed lens and brow bar surfaces such that the lenses and the brow bar are spaced away from each other, thus providing clearance between the lens and the brow bar, even at the point of maximum curvature of the lens. The length of the bushings may be modified such that varying lens curvatures may be facilitated and still maintained out of contact with the brow bar.

REFERENCES:
patent: 2178038 (1939-10-01), Harbour
patent: 2371910 (1945-03-01), Nerney
patent: 2477125 (1949-07-01), Guillet
patent: 3639044 (1972-02-01), Blair

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