Projection display device

Details Projection display device Projection display device

2008-04-08

2010-12-14

Dowling, William C (Department: 2878)

Optics: image projectors

Temperature control

Blower

C353S061000, C353S119000

Reexamination Certificate

active

07850310

ABSTRACT:
A projection display device may include a housing which can be placed on a placing face with a lower face portion thereof distanced from the placing face; a fan, disposed within the housing, to suction from a first air inlet formed in the lower face portion; a filter detachably provided to the housing the as to close off the first air inlet; and a filter replacement access lid detachably provided to the housing so as to cover the filter closing off the first air only from the placing face side, with a second air inlet for suctioning of the fan provided in the filter replacement access lid; wherein the filter replacement access lid may be formed so as to protrude toward the placing face side from the lower face portion; and wherein the second air inlet may be formed in a face of the filter replacement access lid intersecting the lower face portion.

REFERENCES:
patent: 5951136 (1999-09-01), Furuhata et al.
patent: 6364492 (2002-04-01), Fujimori et al.
patent: 6644817 (2003-11-01), Kuroda et al.
patent: 7255446 (2007-08-01), Hamada et al.
patent: 2004/0114113 (2004-06-01), Yamada et al.
patent: 2004-157347 (2004-06-01), None

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