Methods and apparatus for eyeglass curing using ultraviolet light and improved cooling
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United States of America Patent
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-
Jun 10, 2003
Issued Date -
N/A
app pub date -
Nov 19, 1999
filing date -
Apr 19, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method and apparatus for making and coating a plastic lens. Oxygen barrier containing photoinitiator is used to cure incompletely cured lens portions. Radiation pulses are used to control lens curing rate. Lens is posted while in a mold cavity using a conductive heat source. Air may be directed toward the mold cavity to help remove heat form the lens. An in-mold scratch resistant coating may be formed from two separate material which both contain a photoinitiator.
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Family
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