ENHANCED ALUMINUM THIN FILM COATING FOR LAMP REFLECTORS
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United States of America Patent
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Issued Date -
Mar 20, 2014
app pub date -
Sep 18, 2012
filing date -
Sep 18, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Reflector lamps and their methods of manufacture are provided. The reflector lamp includes a parabolic housing defining an interior surface; a light source positioned within the housing; a reflector layer (e.g., including aluminum) on the interior surface of the housing; and an optical interference multilayer coating on the reflective layer. The optical multilayer coating generally includes a plurality of alternating low index layers and high index layers, with the low index layers having a refractive index that is about 1.38 to about 1.55 at 550 nm and the high index layers having a higher refractive index than the low index layers.
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