Disposable molds and method of using the same
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United States of America Patent
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Oct 3, 2006
Grant Date -
N/A
app pub date -
Aug 29, 2005
filing date -
Aug 29, 2005
priority date (Note) -
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Abstract
The present invention encompasses, in part, a method and apparatus for lens casting in which two molds, preferably formed of plastic, are interconnected or joined together via a ring to form a mold cavity having substantially the same dimensions of the lens to be formed therein. In one implementation the invention includes a the casting device comprising a plurality of front molds, each front mold formed of a plastic and having a lens-forming surface. The front molds are configured to form a plurality of lenses of different effective diameters. The casting device further includes a rear mold formed of a plastic and having a lens-forming surface; wherein the rear mold is configured to be paired with each of the plurality of front molds to form a plurality of lenses of different effective diameters.
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