Mold forming method and apparatus, and plastic lens manufacturing method and apparatus
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United States of America Patent
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Sep 11, 2012
Grant Date -
Jul 26, 2007
app pub date -
Jan 22, 2007
filing date -
Jan 20, 2006
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Expired
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Abstract
A method of forming a mold, concludes: winding a tape around peripheral surfaces of a first molding die and a second molding die to assemble a mold; forming on the tape an injection port for injecting a resin material for forming a plastic lens into the mold; and forming a tab by cutting out a part of the tape non-circularly.
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