Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With moisture prevention or absorption
Patent
1992-09-21
1994-06-07
Bertsch, Richard A.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With moisture prevention or absorption
351156, 351157, G02C 508, G02C 300
Patent
active
053193970
ABSTRACT:
Eyeglasses worn in winter weather conditions are subject to fogging due to condensation of water vapor. A method of removing condensation from eyeglasses is provided. The method involves heating the lenses of the eyeglasses, by making the lenses a part of an electrical circuit. Electric current is supplied to the electric circuit from a power source external to the eyeglasses. The size and weight of the power source may be minimized by utilizing a timer or a power regulator. A smaller power source is also made possible by selectively heating the lenses, applying more power in the area of the lenses most likely to experience fogging.
REFERENCES:
patent: 1488085 (1924-03-01), Zachara
patent: 1963990 (1934-06-01), Gilkeson et al.
patent: 2888703 (1959-06-01), Karwowska
patent: 3024341 (1962-03-01), Ogle, Jr. et al.
patent: 3027561 (1962-04-01), Senne
patent: 3160735 (1964-12-01), Aufricht
patent: 4209234 (1980-06-01), McCooeye
patent: 4584721 (1986-04-01), Yamamoto
patent: 4633532 (1987-01-01), Yagasaki
patent: 4638728 (1987-01-01), Elenewski
patent: 4682007 (1987-07-01), Hollander
patent: 4868929 (1989-09-01), Curcio
patent: 4942629 (1990-07-01), Stadlmann
patent: 4996981 (1991-03-01), Elenewski et al.
Basichas Alfred
Bertsch Richard A.
Gould Linda Flewellen
LandOfFree
Defogging eyeglasses does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Defogging eyeglasses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Defogging eyeglasses will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-796175