发明名称 |
Metal halide lamp |
摘要 |
A metal halide lamp using a ceramic arc tube in which less lamp flickering occurs, the flux maintenance factor during the lifetime is high and the possibility of lamp break-off is low. The metal halide lamp includes an arc tube 1 in which iodide pellet of metal halide is filled, and a pair of electrodes are arranged in the ceramic arc tube so that the electrode coils are facing each other. The following relation is satisfied:where alpha (in mm) denotes a length of the portion of the electrode bar protruding from the end face of the electrode coil and W (in Watt) denotes the lamp power.
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申请公布号 |
US6639361(B2) |
申请公布日期 |
2003.10.28 |
申请号 |
US20000578232 |
申请日期 |
2000.05.24 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TAKEDA KAZUO;NISHIURA YOSHIHARU;NAKAYAMA SHIKI;YAMAMOTO TAKASHI |
分类号 |
H01J61/073;H01J61/20;H01J61/82;(IPC1-7):H01J61/073 |
主分类号 |
H01J61/073 |
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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