Tinted polycarbonate ophthalmic lens product and method of manufacture

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8651660
APP PUB NO 20130329184A1
SERIAL NO

13492601

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Abstract

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The present invention describes ophthalmic lens products comprising a multilayer wafer and an injection-molded polycarbonate inner portion. The multilayer wafer includes a dyed, photochromic or polarized layer between a tinted inner layer and an outer polymeric layer. The inner layer may be solid or gradient-tinted. The polycarbonate inner portion of the lens product is directly fused to the tinted inner layer of the multilayer wafer during injection molding. The invention further describes a method to produce a gradient-tinted polarized polycarbonate eyewear lens product by obtaining a multilayer wafer having an outer layer, an inner polycarbonate layer, and a polarized layer between the inner and outer layers, applying a gradient tint to the wafer's inner layer, placing the gradient tinted wafer within an injection-molding cavity, and injecting molten polycarbonate directly against the wafer's gradient-tinted layer to form the inner portion of the lens product and to fuse it to the wafer.

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Patent Owner(s)

Patent OwnerAddress
YOUNGER MFG CO DBA YOUNGER OPTICS2925 CALIFORNIA STRET TORRANCE CA 90503

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ambler, David Mark Ranchos Palos Verdes, US 9 127
Barzak, Adam Ahmad Anaheim, US 2 40
McKenzie, Andrew John Long Beach, US 2 63

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