Apparatus and method of filling a mold for manufacturing an ophthalmic lens
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United States of America Patent
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Sep 7, 2004
Grant Date -
Apr 25, 2002
app pub date -
Aug 23, 2001
filing date -
Feb 19, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An apparatus and method for filling a mold for casting optical lens. Two molding shells and a closure member form a mold with a molding cavity. To fill the mold a fluid lens-forming material is introduced into the molding cavity through a casting opening formed in the closure member. Air is venting out during the filling process through a venting opening also formed in the closure member. Both the casting opening and the venting opening are located in the upper portion of the molding cavity but spaced apart from each other at an acute angle.
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