Lens mold assembly
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United States of America Patent
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-
May 1, 1990
Grant Date -
N/A
app pub date -
May 17, 1988
filing date -
May 17, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mold assembly for casting optical lenses in which an integral lens blank-mold cup unit is created by placing liquid monomers in a cup mold which tightly adheres to polymerized lens material. A radial die is disposed upon the cup mold to contain the monomers during polymerization and to provide the polymerized material with an optical surface. A contact lens is manufactured from the integral lens blank-mold cup unit by machining off the first cup and then extraneous portions of the blank to create a finished lens.
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Cited Art Landscape
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