Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
August 21, 2007
Patent Application Number
10983614
Date Filed
November 9, 2004
Patent Primary Examiner
Patent abstract
An image projecting apparatus including a base, a ballast unit disposed on a top of the base, a display device disposed adjacent to the ballast unit, a cooling fan disposed on the base and introducing external air to the ballast unit, and a guide duct in communication with the ballast unit, guiding the external air blown by the cooling fan to the display device. Thus cooling down of heat generating units such as a lamp unit, a ballast unit, a colorwheel unit, etc., with a minimized number of fans is provided while reducing noise generated therefrom and increasing cooling efficiency.
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