Transparent metallic coating and a glass overcoating on a plasti

Details Transparent metallic coating and a glass overcoating on a plasti Transparent metallic coating and a glass overcoating on a plasti

1977-01-03

1979-07-10

Sacher, Paul A.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With antiglare or shading

350164, 350158, G02C 712, G02B 110, G02B 124

Patent

active

041605845

ABSTRACT:
Spectacles are provided which comprise lenses having a transparent substrate upon which a continuous transparent metallic layer is vapor deposited. Coated thereover is a continuous layer of a dielectric material which is an odd multiple of one-quarter wavelength of a reference color in thickness.

REFERENCES:
patent: 2663171 (1953-12-01), Boone
patent: 2854349 (1958-09-01), Dreyfus et al.
patent: 3516720 (1970-06-01), Mauer
patent: 3549248 (1970-12-01), Schuler
patent: 3914516 (1975-10-01), Ritter

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