Defogging eye glasses

Details Defogging eye glasses Defogging eye glasses

1978-06-02

1980-06-24

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With moisture prevention or absorption

G02C 1108

Patent

active

042092345

ABSTRACT:
A defogging system for eye glasses comprising an electrical circuit means associated with the frame of the eye glasses. A first electrical contact is positioned on one side of each of the rims thereof so as to be in contact with the lens when in position in the rim, and a corresponding second electrical contact, not contacting the first, is located on the opposite side of each rim so as to be in contact with the lens when in position in the rim. An electrical circuit means is provided to carry current from a power source positioned in the frame to the first electrical contacts in the rims and from the second electrical contacts in the rims back to the power source. Appropriate on-off switch means are provided. The rims of the eye glasses are provided with lenses coated with a conductive transparent film, the film being in electrical contact with the first and second electrical contacts.

REFERENCES:
patent: 3160735 (1964-12-01), Aufricht
patent: 3624347 (1971-11-01), Todd
patent: 3686473 (1972-08-01), Shirn et al.
patent: 3900672 (1975-08-01), Hammond et al.
patent: 4037286 (1977-07-01), Medaris et al.

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