Optics: image projectors – Temperature control – Blower
Reexamination Certificate
2007-05-01
2007-05-01
Dowling, William C. (Department: 2851)
Optics: image projectors
Temperature control
Blower
Reexamination Certificate
active
10509114
ABSTRACT:
An ion wind generator (20) is arranged on one side of a light source (1). The ion wind generator (20) produces an air current by negatively ionizing air by corona discharges at a needle electrode (21), or negative side, and drawing the negatively-ionized air at a cylindrical electrode (22), or positive side. The air current blows toward the light source (1) and removes heat generated by the light source (1). An ultraviolet ray from the light source (1) is introduced to a vent of the ion wind generator (20) by a first dichroic mirror (4) and a ultraviolet ray reflection mirror (17). Though air exhausted from the vent includes ozone (o3) produced by corona discharges, the ozone is decomposed by the ultraviolet ray.
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patent: 2006/0061735 (2006-03-01), Hsu
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Funazou Yasuo
Ikeda Takashi
Ishii Koji
Kanayama Hideyuki
Kishimoto Shunichi
Dowling William C.
McDermott Will & Emery LLP
Sanyo Electric Co,. Ltd.
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