Vertically adjustable bifocal eye glasses

Details Vertically adjustable bifocal eye glasses Vertically adjustable bifocal eye glasses

1979-08-30

1981-07-28

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With vertical adjustment of multifocal lenses

351 88, 351128, 351137, G02C 706, G02C 100, G02C 512, G02C 504

Patent

active

042807581

ABSTRACT:
The eyeglasses include a pair of rims carrying bifocal lenses and interconnected by a bridge to define a nose-receiving space therebetween and further includes a nose piece, mounted between the rims, either as an integral part of the bridge or as part of a separate, detachable unit. The nose piece is connected to a push-push mechanism which is arranged so that a wearer, with the nose piece resting on his nose, can conveniently move the lenses up and down between a normal position and raised a position where the lower reading portions of the lenses are in front of the eyes by simply applying a momentary downward force on the bridge, the rims or the temple pieces.

REFERENCES:
patent: 1102909 (1914-07-01), Hannah
patent: 2252922 (1941-08-01), Goldstein
patent: 2410141 (1946-10-01), Zell
patent: 2660924 (1953-12-01), Stegeman
patent: 2670658 (1954-03-01), Grantham
patent: 3365263 (1968-01-01), Allen
patent: 3552838 (1971-01-01), Hawks
patent: 4113365 (1978-09-01), Koketsu

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