Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kai Huang0
Hou-Chen Lu0
Date of Patent
August 2, 2011
0Patent Application Number
121065210
Date Filed
April 21, 2008
0Patent Primary Examiner
Patent abstract
A cooling system for cooling down a heat source of a projection device is disclosed. The cooling system includes a fan, and a control module. The control module is configured for supplying a first voltage to the fan for a first duration after the projection device is powered off and a second voltage to the fan for a second duration successive to the first duration. The second voltage is greater than the first voltage.
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