Optics: image projectors – Temperature control – Blower
Reexamination Certificate
2011-04-12
2011-04-12
Sohn, Seung C (Department: 2878)
Optics: image projectors
Temperature control
Blower
C353S085000, C353S121000, C396S571000, C315S117000, C315S118000
Reexamination Certificate
active
07922334
ABSTRACT:
A projector having optical components, a power source unit, and a light source unit. The projector is capable of lowering its internal temperature utilizing: a first, second, and third fan (41, 42, 43) provided near the optical components for introducing external air from outside the projector to cool the optical components; and a fourth, fifth, and sixth exhaust fan (16, 17, 18). The fourth fan (16) blows the air that was taken in by the first, second, and third fan (41, 42, 43) and has cooled the optical components, onto the light source unit to further cool the light source unit. The fifth and sixth exhaust fans (17, 18) discharge the air that has cooled the light source unit and power supply unit out of the projector.
REFERENCES:
patent: 7052143 (2006-05-01), Russell et al.
patent: 1928707 (2007-03-01), None
patent: 2006-98734 (2006-04-01), None
Chinese Office Action dated Jul. 24, 2009, issued in corresponding Chinese Patent Application No. 200710100527.
Guan Yi
Huang Yanshan
Kong Xiangfei
Liang Xiangdong
Mao Xiaoling
Sanyo Electric Co,. Ltd.
Sanyo Technology Center (Shenzhen) Co., Ltd.
Sohn Seung C
Westerman Hattori Daniels & Adrian LLP
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