Projection apparatus provided with a cooling system

Details Projection apparatus provided with a cooling system Projection apparatus provided with a cooling system

2006-05-11

2009-10-27

Dowling, William C (Department: 2851)

Optics: image projectors

Temperature control

Blower

C362S294000

Reexamination Certificate

active

07607782

ABSTRACT:
A cooling system is for cooling a lamp module within a projection apparatus and includes an axial fan unit for mounting within the projection apparatus, defining an axial direction and having an air discharging side to permit an airflow flow therethrough, the airflow defining a flow direction that cooperates with the axial direction to define an angle therebetween. The system further includes a flow-guiding duct that has an air inlet located adjacent to the discharging side of the axial fan unit and that is oriented toward the angle in such a manner to define the flow direction for guiding the airflow toward the lamp module.

REFERENCES:
patent: 6758583 (2004-07-01), Hsu et al.
patent: 7210825 (2007-05-01), Watanabe et al.
patent: 2003/0179579 (2003-09-01), Hsu et al.
patent: 2004/0263799 (2004-12-01), Lim
patent: 2005/0036115 (2005-02-01), Kim et al.
patent: 2005/0225963 (2005-10-01), Huang et al.
patent: 2007/0146645 (2007-06-01), Lin et al.

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