发明名称 |
Short arc type ultra-high pressure discharge lamp |
摘要 |
The present invention is a short arc type ultra-high pressure discharge lamp in which a pair of electrodes 3 are disposed inside an arc tube 1 that comprises quartz glass, seal portions 2 are formed that comprise quartz glass and extend to both sides of the arc tube 1, and at least 0.15 mg/mm3 of mercury is filled into the arc tube 1, wherein a metal foil 4 is embedded in each of the seal portions 2, and metal granular lumps 6 are protrusively provided on surfaces of each metal foil 4.
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申请公布号 |
US2003094899(A1) |
申请公布日期 |
2003.05.22 |
申请号 |
US20020270540 |
申请日期 |
2002.10.16 |
申请人 |
USHIO DENKI KABUSHIKI KAISYA |
发明人 |
FUKUSHIMA KENSUKE;OKAMOTO TETU |
分类号 |
H01J17/20;H01J61/36;H01J61/86;(IPC1-7):H01J17/20 |
主分类号 |
H01J17/20 |
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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