Edge coating for laminated lenses

Details Edge coating for laminated lenses Edge coating for laminated lenses

1991-11-18

1993-06-15

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351166, G02C 702

Patent

active

052203581

ABSTRACT:
This invention is primarily directed to edged three-layer ophthalmic lenses having a coating covering the edge of the lens. The coating provides a cushion between the lens and an eyeglass frame and inhibits the penetration of moisture and tints commonly used to fashion tint ophthalmic lenses. The coating comprises a dimethyl silicone coblocked with vinyl with crosslinking therein being provided through a platinum-catalyzed addition reaction. The inventive coating also imparts advantageous properties to single element glass and plastic lenses.

REFERENCES:
patent: 4427271 (1984-01-01), Fogg
patent: 4770493 (1988-09-01), Ara et al.

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