Moisture barrier coatings for infrared salt optics
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United States of America Patent
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Mar 17, 2009
Grant Date -
Sep 28, 2006
app pub date -
Mar 23, 2005
filing date -
Mar 23, 2005
priority date (Note) -
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Abstract
The present invention is directed to a salt optic provided with a multilayer coating in order to improve upon the moisture resistance of a salt optic, when compared to the moisture resistance of an uncoated salt optic. In one aspect, the present invention is comprised of a coated salt optic having at least a first coating layer and a second coating layer, the first coating layer being surface-smoothing layer and adhesion layer, and the second coating layer being a moisture barrier layer.
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