Light source compartment storing light source unit and...

Details Light source compartment storing light source unit and... Light source compartment storing light source unit and...

2011-08-09

2011-08-09

Lee, John R (Department: 2878)

Optics: image projectors

Temperature control

Blower

C362S373000

Reexamination Certificate

active

07993010

ABSTRACT:
A protector is provided which can prevent the leakage of light from a light source lamp to the outside of the projector and which can discharge air that has cooled a light source unit to the outside of the projector with a small ventilation resistance. A light source compartment storing a light source unit according to the invention includes a light source storing section which is defined by partitioning walls which surround the light source unit, an air inlet port which is provided in part of the partitioning walls to let in air discharged from a cooling fan and a rotatable light shielding member having a plurality of vane portions on a rotational shaft thereof which is provided in an air outlet port formed in part of the partitioning walls to let out air.

REFERENCES:
patent: 7393109 (2008-07-01), Arboix
patent: 2008/0055563 (2008-03-01), Momose et al.
patent: 2008/0316437 (2008-12-01), Kase
patent: 2009/0051829 (2009-02-01), Nagahata et al.
patent: 2009/0135378 (2009-05-01), Lin et al.
patent: 2003-15223 (2003-01-01), None
patent: 2003-215710 (2003-07-01), None
patent: 2003-262921 (2003-09-01), None
Japanese Office Action dated May 21, 2009 (3 pages), and English translation thereof (4 pages), issued in counterpart Japanese Application Serial No. 2007-163603.

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