发明名称 |
Arc tube and low-pressure mercury lamp that can be reduced in size |
摘要 |
An arc tube includes an arc tube body and a pair of electrodes. The arc tube body is formed from a glass tube which is double-spirally wound from a middle portion to both ends around a spiral axis. The pair of electrodes are sealed at both ends of the arc tube body. Mercury is enclosed in the arc tube substantially in a single form. Each of the electrodes includes a multiple-coiled filament which is wound substantially one turn in a last coiling stage.
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申请公布号 |
US7332866(B2) |
申请公布日期 |
2008.02.19 |
申请号 |
US20040854887 |
申请日期 |
2004.05.27 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAKANISHI AKIKO;IWASE KOHHEI;NAKANO KENJI;ITAYA KENJI;TANI SEIDOU;UCHIDA NORIYUKI |
分类号 |
H01J17/04;H01J61/067;H01J17/00;H01J61/00;H01J61/04;H01J61/30;H01J61/32;H01J61/72 |
主分类号 |
H01J17/04 |
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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