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United States of America Patent
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Issued Date -
Mar 29, 2012
app pub date -
Sep 23, 2011
filing date -
Sep 29, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A projector is provided with a lamp including an arc tube, which generates light, and a reflector. The reflector includes an inner surface that reflects light from the arc tube and an opposite outer surface. The arc tube and the inner surface define an inner portion of the lamp. At least the outer surface defines an outer portion of the lamp. A housing accommodates the lamp and includes an air inlet through which air is drawn in from outside the housing. An air mixing structure mixes a cooling current that has cooled the inner portion of the lamp with the air drawn into the housing through the air inlet. A cooling current guide structure guides the cooling current mixed with the air mixing structure to the outer portion of the lamp.
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