发明名称 |
Discharge Lamp Ballast Apparatus |
摘要 |
A discharge lamp ballast apparatus has a reflecting mirror 2 and a power source circuit 5 . The reflecting mirror 2 is disposed around a discharge light bulb 1 in such a manner as to cast light from the discharge light bulb 1 in one direction. The power source circuit 5 applies a start pulse of a negative potential with respect to the potential of the reflecting mirror 2 to an electrode 6 located at a side with the higher electric field concentration produced between electrodes 6 and 7 to which a high voltage of the start pulse is applied. This makes it possible to produce a dielectric breakdown near the electrode 6 , and makes it easier to start the discharge light bulb 1.
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申请公布号 |
US2008284339(A1) |
申请公布日期 |
2008.11.20 |
申请号 |
US20050666231 |
申请日期 |
2005.11.15 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
OHSAWA TAKASHI;INANAGA YASUTAKA |
分类号 |
B60Q1/14;H05B37/00 |
主分类号 |
B60Q1/14 |
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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