Multi-layer interference filter having colored reflectance and substantially uniform transmittance and methods of manufacturing the same
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United States of America Patent
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Issued Date -
Feb 26, 2004
app pub date -
May 30, 2003
filing date -
Jun 1, 2002
priority date (Note) -
Abandoned
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Abstract
The present invention is concerned with a new family of optical element for use in eyeglasses, visors, masks and screens which produce a new chromatic effect through a vacuum deposition of two or plus layers of dielectric substances and methods of manufacturing the same. These new filters combine some colored reflection on the outer surface with a uniform transmission looking through the lens so complying the European Standard in terms of luminous transmittance uniformity.
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