Optics: image projectors – Temperature control
Reexamination Certificate
2005-07-26
2009-08-25
Owens, Douglas W (Department: 2821)
Optics: image projectors
Temperature control
C353S057000, C315S117000
Reexamination Certificate
active
07578594
ABSTRACT:
A method for determining whether to activate an illumination source includes directing an air current across at least a portion of the illumination source and across at least a portion of a temperature sensor. The method also includes sensing the temperature of the air current with the temperature sensor and determining whether to activate the illumination source based on the temperature of the air current.
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Rudolph Daniel C
Souza Timothy
A Minh D
Hewlett--Packard Development Company, L.P.
Owens Douglas W
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