Lighting system, discharge unit, and projector including the...

Details Lighting system, discharge unit, and projector including the... Lighting system, discharge unit, and projector including the...

2005-10-25

2005-10-25

Nguyen, Judy (Department: 2851)

Optics: image projectors

Temperature control

Blower

C353S052000, C353S119000

Reexamination Certificate

active

06957892

ABSTRACT:
A projector includes a light-source device, a discharge duct having an air intake port facing the light-source device and a discharge port, an axial fan mounted between the air intake port and the light-source device in an outer casing. The discharge port has an opening area smaller than that of the air intake port and is eccentric to the air intake port. The direction of air flow from the axial fan is inclined with respect to the direction of the discharge of a cooling air from the discharge port. Accordingly, when the cooling air that has cooled a light source lamp is discharged through the discharge duct with the axial fan, the light blocking effect can be increased and the discharge pressure of the cooling air discharged can be increased.

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patent: 2003/0179579 (2003-09-01), Hsu et al.
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patent: A 8-304739 (1996-11-01), None
patent: A 2000-10191 (2000-01-01), None
patent: A 2000-330202 (2000-11-01), None

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