发明名称 |
SHORT-ARC HIGH-PRESSURE DISCHARGE LAMP |
摘要 |
<p>The object of the invention is to improve the thermal radiation characteristic of the electrodes in a high pressure discharge lamp of the short arc type in which the input power has been increased in order to increase the amount of radiant light, and to reduce the electrode temperature with high efficiency. (Arrangement> The object is achieved as claimed in the invention in a high pressure discharge lamp of the short arc type in the emission tube of which there is a pair of electrodes, in that at least part of the sides of the above described electrodes is provided with a groove area, that the depth D of this groove area is within 12% of the electrode diameter and that the relation D/P is between the depth D of the groove area and the pitch P between the grooves is greater than or equal to 2. <IMAGE></p> |
申请公布号 |
EP1251548(B1) |
申请公布日期 |
2013.06.05 |
申请号 |
EP20010954370 |
申请日期 |
2001.07.30 |
申请人 |
USHIO DENKI KABUSHIKI KAISYA |
发明人 |
OKUBO, KEISUKE;IKEUCHI, MITSURU;MIYANAGA, SHOJI |
分类号 |
H01J61/073;H01J61/86 |
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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