Method and compositions for manufacturing coated photochromatic articles
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United States of America Patent
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Aug 30, 2005
Grant Date -
N/A
app pub date -
Jul 22, 1999
filing date -
Jul 24, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for making a lens includes a front mold (90) which has a reflective, UV absorptive surface, a back mold (50) which is UV light transmissive and a gasket (60) which holds the molds and defines a lens forming cavity (78) therebetween which receives polymerizable resin material (130). The resin (130) in the lens forming cavity (78) is exposed to a source of UV light (20) to cure the resin (130) and form the lens. Photochromatic coatings can be applied to the lens and cured.
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