Optics: image projectors – Temperature control – Blower
Reexamination Certificate
2005-09-13
2005-09-13
Nguyen, Judy (Department: 2851)
Optics: image projectors
Temperature control
Blower
C353S060000, C353S061000, C353S119000
Reexamination Certificate
active
06942348
ABSTRACT:
A projector device adapted to project an image-forming beam using a lamp as a light source. The lamp is installed within a rectangular parallelepipedal housing, and an exhaust fan is disposed to the rear of the lamp. The top wall of the housing surrounding the lamp is given an opening pattern asymmetric about the optical axis of the lamp by forming an air inlet opening in a position deviated from the optical axis toward a direction orthogonal to the axis for producing a swirling air current within the housing by operating the exhaust fan. The lamp can be effectively cooled with reduced quantities of air.
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Adachi Takaharu
Gishi Hiromitsu
Hamada Fumihiko
Kurokawa Michihiro
Masuda Mitsuhiro
Armstrong Kratz Quintos Hanson & Brooks, LLP
Koval Melissa J.
Nguyen Judy
Sanyo Electric Co,. Ltd.
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