Wafer deforming composite ophthalmic lens method

Details Wafer deforming composite ophthalmic lens method Wafer deforming composite ophthalmic lens method

1997-03-07

1998-12-22

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1562755, 1562757, 1562737, 264 17, 351166, B32B 3128

Patent

active

058513280

ABSTRACT:
Methods for quickly and inexpensively producing photochromic non-prescription (e.g., sunglasses, safety glasses, reading glasses, etc.), prescription, multifocal and progressive plastic optical quality eyeglass. The lenses are formed by a process wherein a thin wafer lens is deformed to assume the curvature of a base lens. Deformation may be by heat treatment and application of pressure while adhering the wafer lens against a base lens. The invention further concerns lenses produced by the methods. The lenses are characterized by an extremely rapid photochromic response.

REFERENCES:
patent: 4543146 (1985-09-01), Petcen
patent: 4859261 (1989-08-01), Ace
patent: 4969729 (1990-11-01), Merle
patent: 5017666 (1991-05-01), Crano et al.
patent: 5531940 (1996-07-01), Gupta et al.
patent: 5552090 (1996-09-01), Van Gemert et al.

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