Projection display with direct light source cooling means

Details Projection display with direct light source cooling means Projection display with direct light source cooling means

2006-05-31

2009-12-08

Lee, Diane I (Department: 2851)

Optics: image projectors

Temperature control

Blower

C353S052000, C353S057000, C353S060000, C362S294000, C362S296040, C362S345000

Reexamination Certificate

active

07628492

ABSTRACT:
A projection display capable of preventing a reflector from damage and cooling a lamp at high efficiency. The projection display includes a light source which has a lamp and metallic reflector. The metallic reflector has an opening disposed above the light-emitting point of the lamp in the gravity direction. A duct has an end coupled to the opening and directs the air induced by a fan through the opening into the metallic reflector. The air then circulates within the metallic reflector to cool the light-emitting point of the lamp, and subsequently is released out of the metallic reflector through through-holes formed with a front glass and a flange of the metallic reflector.

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