Optics: image projectors – Temperature control – Blower
Reexamination Certificate
2007-08-14
2007-08-14
Perkey, W. B. (Department: 2851)
Optics: image projectors
Temperature control
Blower
C353S057000, C353S119000, C348S748000
Reexamination Certificate
active
11084013
ABSTRACT:
A projection type video display capable of reducing components in number, and attempting to improve a cooling efficiency and a silencing of the video display is provided. Three cooling fans are provided on a plate member arranged within a chassis of the video display of a liquid crystal projector. The plate member is arranged in such a manner as to be spaced apart from a bottom plate of a chassis of the video display in order to form a single external-air introducing duct. Double-bottomed structure is formed by the plate member, and the plate member is used as a bottom for arranging components. Each cooling fan sucks external air from the single external-air introducing duct, and blows the external air from a blowing duct to an object to be cooled (a light source, a liquid crystal display, and others).
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Communication dated Jul. 5, 2005 from European Patent Office in Application No. 05 00 6260 enclosing European Search Report.
Adachi Takaharu
Hamada Fumihiko
Miyamoto Masaaki
Miyanaga Akira
Perkey W. B.
Sanyo Electric Co,. Ltd.
Sever Andrew
Westerman, Hattori, Daniels & Adrian , LLP.
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