发明名称 |
Electrode, manufacturing method thereof, and metal vapor discharge lamp |
摘要 |
A first electrode part in a rod shape is placed on an upper side, and a second electrode part in a rod shape having a higher melting point than that of the first electrode part is placed on a lower side, so that ends of the first and second electrode parts are brought into contact. Contact ends or vicinities thereof are irradiated with a laser beam, so that the electrode parts are welded. Here, a region irradiated with the laser beam is in a long narrow shape having a minor axis directed in a vertical direction and a major axis directed in a horizontal direction. This makes it possible to manufacture an electrode with a consistent high quality with a high yield.
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申请公布号 |
US7057347(B2) |
申请公布日期 |
2006.06.06 |
申请号 |
US20040932785 |
申请日期 |
2004.09.02 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KAWAMURA TATSUYA;KOBAYASHI TOSHIZO;ENAMI HIROSHI;NISHIURA YOSHIHARU;YANATA TAKAHARU |
分类号 |
H01J17/18;H01J9/02;H01J9/04;H01J61/04;H01J61/36 |
主分类号 |
H01J17/18 |
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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