Method for curing a lens-forming fluid
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United States of America Patent
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Aug 15, 2000
Grant Date -
N/A
app pub date -
Feb 19, 1998
filing date -
Feb 19, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for curing a lens-forming fluid, including exposing the lens-forming fluid to an ultra-violet light, wherein the exposure time is between twenty seconds and thirty minutes, which can completely cure the fluid. The exposure can occur by placing the lens-forming fluid intermediate a plurality of ultraviolet light sources, in which the intensity of the ultra-violet light is at least 1.2.times.10.sup.-2 watts per square centimeter at a wavelength of 350 nanometers. The lens-forming fluid preferably is a monomer. The prior art, in contrast, requires significantly longer exposure times to cure monomer or other lens-forming fluids.
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