发明名称 |
Electrode for a high pressure discharge lamp, high pressure discharge lamp, and method of manufacturing therefor |
摘要 |
A high pressure discharge lamp which achieves a long life of at least 3000 hours and in which variations in lamp characteristics are suppressed is disclosed. In the high pressure discharge lamp of the present invention, during manufacturing of an electrode, a covering member 123 having a coil shape and being made of refractory metal is applied on a discharge side end of an electrode rod 122 made of refractory metal so as to cover a circumference of the electrode rod 122 in a vicinity of the discharge side end. The discharge side end 124 on which the covering member 123 is applied is fused into a semi-sphere by intermittently heat fusing the discharge side end according, for instance, to arc discharge or laser irradiation.
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申请公布号 |
US2001030498(A1) |
申请公布日期 |
2001.10.18 |
申请号 |
US20010836726 |
申请日期 |
2001.04.17 |
申请人 |
TSUTATANI TAKASHI;KITAHARA YOSHIKI;SHIMIZU TOSHIYUKI |
发明人 |
TSUTATANI TAKASHI;KITAHARA YOSHIKI;SHIMIZU TOSHIYUKI |
分类号 |
H01J61/073;(IPC1-7):H01J9/04 |
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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