Lens for spectacles

Details Lens for spectacles Lens for spectacles

1989-04-06

1991-02-05

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351166, G02C 710

Patent

active

049899678

ABSTRACT:
A lens for spectacles having at least one side thereof coated with a surface layer in a predetermined pattern so that transparent portions will be left on the lens. The transparent portions should have such an area that the light transmission rate will be larger than a predetermined value. The surface layer may be made of a fluorescent material, a light absorbing material or a light reflecting material. An interface layer such as a light absorbing layer may be interposed between the lens body and the surface layer. A protective layer may be provided on the surface layer. The lens may be made by bonding two half lenses with surface layers sandwiched therebetween.

REFERENCES:
patent: 3731993 (1973-05-01), Piringer
patent: 4257692 (1981-03-01), Le Naour-Sene

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