发明名称 |
Driving method and driving device for discharge lamp, light source device, and image display device |
摘要 |
A driving method for a discharge lamp that lights by performing discharge between two electrodes while alternately switching a polarity of a voltage applied between the two electrodes includes: modulating an anode duty ratio, which is a ratio of an anode time for which one of the electrodes operates as an anode in one period of the polarity switching, within a predetermined range; and changing the predetermined range to make a maximum value of the modulated anode duty ratio higher than a maximum value of an initial anode duty ratio of the discharge lamp when a predetermined condition is satisfied. |
申请公布号 |
US8089214(B2) |
申请公布日期 |
2012.01.03 |
申请号 |
US20090389648 |
申请日期 |
2009.02.20 |
申请人 |
TERASHIMA TETSUO;YAMAUCHI KENTARO;TAKEZAWA TAKESHI;OKAWA KAZUO;SEIKO EPSON CORPORATION |
发明人 |
TERASHIMA TETSUO;YAMAUCHI KENTARO;TAKEZAWA TAKESHI;OKAWA KAZUO |
分类号 |
H05B41/36;H05B41/24 |
主分类号 |
H05B41/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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