Laser projector having temperature control
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United States of America Patent
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Jul 17, 2007
Grant Date -
Apr 13, 2006
app pub date -
Oct 8, 2004
filing date -
Oct 8, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A laser projector including a cooling system having an internal wall dividing the housing into a first compartment containing the optical components and a second compartment containing the electrical components, wherein the internal wall has a first face receiving the optical components and a second face receiving the electrical components thermally isolated from the first face. The internal wall includes a cooling channel and a fan directs air through the channel to maintain the optical components below a maximum operating temperature. The internal wall in one disclosed embodiment includes two parallel wall members each having a plurality of parallel channels, a thermoelectric cooling element located on the wall adjacent the first compartment, a sensor is located in the first compartment and a control maintains a temperature below ambient in the first chamber.
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