Projector

Details Projector Projector

2006-05-30

2006-05-30

Dowling, William C. (Department: 2851)

Optics: image projectors

Temperature control

Blower

Reexamination Certificate

active

07052144

ABSTRACT:
A projector includes a sirocco fan762as an exhaust fan arranged oppositely to an exhaust hole2B formed on an exterior case2to suck air inside the exterior case2and to discharge the air to the outside via the exhaust hole2B. The sirocco fan762is arranged such that a suction side thereof is along a plane orthogonal to an optical path plane defined by a light source device, an optical modulator and a projection optical device of a device body of the projector. Further, the sirocco fan762is arranged such that a discharge hole762A is inclined in a fan rotation direction to discharge the sucked air substantially to the center of an end surface with the exhaust hole2B formed in a thickness direction.Accordingly, such projector is provided that can enhance an exhaust efficiency by sucking the air of the inside effectively without the rotation number of the exhaust fan increased, and also can reduce the thickness thereof.

REFERENCES:
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patent: 2004/0189954 (2004-09-01), Kuroda
patent: 2005/0117122 (2005-06-01), Ito et al.
patent: U-5-59424 (1993-08-01), None
patent: A-8-304739 (1996-11-01), None
patent: A-10-186546 (1998-07-01), None
patent: A-11-354963 (1999-12-01), None

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