发明申请
US20090207385A1 METHOD OF DRIVING DISCHARGE LAMP, DRIVING DEVICE, AND PROJECTOR
有权
驱动放电灯，驱动装置和投影仪的方法
- 专利标题： METHOD OF DRIVING DISCHARGE LAMP, DRIVING DEVICE, AND PROJECTOR
- 专利标题（中）： 驱动放电灯，驱动装置和投影仪的方法
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申请号： US12372370申请日： 2009-02-17
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公开(公告)号： US20090207385A1公开(公告)日： 2009-08-20
- 发明人: Kentaro YAMAUCHI , Takeshi TAKEZAWA
- 申请人： Kentaro YAMAUCHI , Takeshi TAKEZAWA
- 申请人地址： JP Tokyo
- 专利权人： SEIKO EPSON CORPORATION
- 当前专利权人： SEIKO EPSON CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2008-036973 20080219
- 主分类号： G03B21/20
- IPC分类号： G03B21/20 ; H05B41/24 ; F21V7/00
摘要：
A method for driving a discharge lamp that supplies an AC current to a discharge lamp having a first electrode and a second electrode so as to produce discharge and to cause the discharge lamp to emit light includes, during a steady operation in which the AC current is supplied to the discharge lamp, changing a difference between the absolute values of average current values for two polarities during one cycle of the AC current in accordance with a predetermined pattern.
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