Projector device

Details Projector device Projector device

2007-04-30

2010-06-22

O'Shea, Sandra L (Department: 2875)

Illumination

Housing

With cooling means

C362S294000, C362S096000, C362S362000, C353S057000, C353S061000

Reexamination Certificate

active

07740385

ABSTRACT:
A projector device-of the present invention includes a light blocking mechanism for blocking leak light from a lamp unit. The light blocking mechanism includes a first light blocking member having a plurality of first light blocking plates arranged therein at certain pitches, and a second light blocking member having a plurality of second light blocking plates arranged therein at certain pitches. The first light blocking plates and the second light blocking plates each define a gap providing an air flow passage. A flat inclined part of each second light blocking plate extends in an inverted direction to a flat inclined part of each first light blocking plate, with a predetermined angle of inclination, so that the first light blocking plates and the second light blocking plates block the light emitted from the lamp unit toward a vent of a casing in all orientations.

REFERENCES:
patent: 7345724 (2008-03-01), Yoshimura et al.
patent: 2005/0134802 (2005-06-01), Furuta et al.
patent: 1727986 (2006-02-01), None
patent: 04-53279 (1992-05-01), None
patent: 10-19795 (1998-07-01), None
patent: 2005-274730 (2005-10-01), None
English Translation of the Japanese Office Action dated May 20 2008, issued in corresponding Japanese patent application No. 2006-128732.
Chinese Office Action dated Jan. 9, 2009, issued in corresponding Chinese Patent Application No. 200710102938.
Office Action dated May 20, 2008, issued in corresponding Japanese Patent Application No. 2006-128732.

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