In-line lens manufacturing
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United States of America Patent
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Issued Date -
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app pub date -
May 5, 2004
filing date -
May 6, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Methods are disclosed which decrease the time between de-molding a lens and initiating a hard coating process. The de-molded lens at a de-mold temperature T.sub.M is transported away from a mold. A dip tank is maintained at a temperature T.sub.D, where T.sub.D is less than T.sub.M, wherein the dip tank includes a liquid including a primer or a hard coat solution. The lens is dipped into the dip tank wherein the lens has a temperature T.sub.L greater than T.sub.D, so that intermediate cooling, cleaning, destaticizing and delays associated therewith are avoided. Other methods eliminate many conventional process steps and may include drying raw material to decrease primer coating times and employing robotic systems for carrying out the methods.
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