Ophthalmic antireflection coatings with metal, dielectric, subst

Details Ophthalmic antireflection coatings with metal, dielectric, subst Ophthalmic antireflection coatings with metal, dielectric, subst

1976-11-08

1978-01-24

Henry, Jon W.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351 44, G02B 110

Patent

active

040700976

ABSTRACT:
Ophthalmic anti-reflection coating for use on spectacles with lenses having an eye side and an outside. A first coating is disposed on the eye side of each lens and the second coating is disposed on the outside of each lens. The first and second coatings are formed of a metal layer and a dielectric layer having a low index of refraction. The metal layer in the first coating is adjacent the lens on the eye side and the dielectric layer in the second coating is adjacent the lens on the outside.

REFERENCES:
patent: 3330681 (1967-07-01), Scharf et al.
patent: 3679291 (1972-07-01), Apfel et al.
patent: 3936579 (1976-02-01), Ogasawara et al.

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