Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With auxiliary lenses movable in and out of the optical path
Patent
1979-07-20
1980-12-16
Corbin, John K.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With auxiliary lenses movable in and out of the optical path
2 10, G02C 708
Patent
active
042393523
ABSTRACT:
A head-supported optic shield protects the eyes of the wearer and eliminates the need to wear glasses while working. The optic shield comprises a porous, ventilated cap having an annular supporting member or brim and an adjustable chin strap. The supporting member or brim includes an outwardly extending peripheral flange which cooperated with and supports the supporting flange portion of a cylindrical shield. The cylindrical shield is of clear, transparent safety glass or optical quality plastic with three lens portions, viz. clear, close magnification, and distance magnification. The supporting flange on the optical shield has a notch which cooperates with a positioning abutment on the brim so that the cylindrical shield may be rotated and temporarily fixed in a predetermined position with any one of the lenses in front of the eyes of the wearer. An auxiliary welding shield is provided.
REFERENCES:
patent: 1008109 (1911-11-01), Bickerton
patent: 1212842 (1917-01-01), Stronge
patent: 1222995 (1917-04-01), Rhoades
patent: 1342277 (1920-06-01), Dowd
patent: 2155258 (1939-04-01), Dennis
patent: 2362637 (1944-11-01), Keehn
patent: 2576581 (1951-11-01), Edwards
patent: 2728913 (1956-01-01), Connor
patent: 4138746 (1979-02-01), Bergmann
Corbin John K.
de los Reyes B. W.
Mosely Neal J.
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