Method and mold to control optical device polymerization
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United States of America Patent
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Dec 5, 2006
Issued Date -
N/A
app pub date -
May 5, 2004
filing date -
Mar 31, 2000
priority date (Note) -
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Abstract
A method and mold assembly to control the polymerization of a cast optical device. The mold assembly includes at least one mold portion having a non-critical surface with fresnel or diffractive geometry. Alternately, a fresnel lens or diffractive lens may be placed at a predetermined distance from the mold.
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