Title: Projector device
Application Number: 200410092546 Application Date: 2002.06.21
Publication Number: 1607458 Publication Date: 2005.04.20
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G03B21/16,G03B21/20,G03B21/00
Applicant(s) Name: Sanyo Electric Co. Address:
Inventor(s) Name: Gishi Hiromitsu, Hamada Fumihiko, Okazaki Shoji, A
Attorney & Agent: wen dapeng hu qiang
Abstract:
     The invention provides a projector device adapted to project an image-forming beam using a lamp 5 as a light source. The lamp 5 is installed within a rectangular parallelepipedal housing 41b, and an exhaust fan 40 is disposed to the rear of the lamp 5. The top wall of the housing 41b surrounding the lamp 5 is given an opening pattern asymmetric about the optical axis of the lamp 5 by forming an air inlet opening 45 in a position deviated from the optical axis toward a direction orthogonal to the axis for producing a swirling air current within the housing 41b by operating the exhaust fan 40. The lamp 5 can be effectively cooled with reduced quantities of air.
Time: 10
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