发明授权
- 专利标题: Projection type video display
- 专利标题(中): 投影型视频显示
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申请号: US10509114申请日: 2003-03-26
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公开(公告)号: US07210790B2公开(公告)日: 2007-05-01
- 发明人: Koji Ishii , Takashi Ikeda , Hideyuki Kanayama , Yasuo Funazou , Shunichi Kishimoto , Yoshihiro Yokote , Takashi Miwa
- 申请人: Koji Ishii , Takashi Ikeda , Hideyuki Kanayama , Yasuo Funazou , Shunichi Kishimoto , Yoshihiro Yokote , Takashi Miwa
- 申请人地址: JP Osaka
- 专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: McDermott Will & Emery LLP
- 优先权: JP2002-091923 20020328; JP2002-361139 20021212
- 国际申请: PCT/JP03/03757 WO 20030326
- 国际公布: WO03/083574 WO 20031009
- 主分类号: G03B21/14
- IPC分类号: G03B21/14
摘要:
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.
公开/授权文献
- US20050237500A1 Projection type image display unit 公开/授权日:2005-10-27