Coated synthetic resin lens
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United States of America Patent
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May 14, 1991
Issued Date -
N/A
app pub date -
Feb 10, 1987
filing date -
Jul 29, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Coated synthetic resin lenses having a primer layer of a copolymer of an acrylic and/or methacrylic monomer and an aromatic vinyl compound between the base material and a cured abrasion resistant layer of colloidal silica and an inorganic anti-reflection coating are provided. The cured coat of colloidal silica has a particle diameter between about 1 and 100 millimicrons and is dispersed in a hydrolyzed silane compound. The organic primer coating improves adhesion properties between the base material and the cured abrasion-resistant layer resulting in coated lenses of improved impact resistance.
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