Method for molding plastic lenses
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United States of America Patent
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Jul 9, 2002
Issued Date -
N/A
app pub date -
Mar 21, 2001
filing date -
Mar 21, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The method for making an optical lens which includes: filling a molding cavity vertically oriented and defined by two mold pieces at the periphery of which is disposed an annular closure member with a polymerizable synthetic composition through a disposable check valve provided in the closure member; polymerizing the composition to form the lens; and recovering the lens with the disposable check valve imprisoned within the polymerized composition at the periphery thereof.
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Family
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Cited Art Landscape
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