Luminaire
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United States of America Patent
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Issued Date -
Aug 30, 2012
app pub date -
Aug 12, 2010
filing date -
Sep 4, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A luminaire has a light source in the form of a quartz crucible, having a plasma void. A power supply has a magnetron for providing microwaves for generating a plasma in the void. An air wave guide is connected below the magnetron and a connector is connected below the wave guide. The plasma crucible is fitted to the bottom of the connector and is enclosed by a Faraday cage. Arranged with the crucible at its focal point is a reflector. It has a central aperture through which the connector extends. A lower, hemispherical shell of a casing for the power supply supports the reflector at a similar aperture, with the interposition of one or more focus adjusting spacers.
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