Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nien-Hui Hsu0
Date of Patent
January 9, 2007
0Patent Application Number
110955820
Date Filed
April 1, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A self dust-off apparatus includes a fan and a controller. The fan, which can be driven to rotate clockwise or counterclockwise, is installed in a projector. The controller is employed to direct the rotational direction (clockwise or counterclockwise) of the fan. In the normal operation, the fan rotates to guide the air from an inlet to an outlet. In the dust-off operation, the fan rotates along reverse direction to guide air inversely in relation to the normal operation so that dust is taken out of the projector easily.
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