发明名称 |
Metal halide lamp |
摘要 |
A metal halide lamp with a distance of less than 3.0 mm between the electrodes, in which in the hermetically sealed portion no cracks occur, which can be produced without difficulty, and which enables advantageous operation is achieved with a halide lamp in which an arc tube made of quartz glass contains a cathode and an anode spaced from each other at a distance of less than or equal to 2.9 mm together with mercury and metal halides, and which is operated with a nominal wattage range of from 100 to 400 W using direct current, by causing the ratio D/H to be greater than or equal to 1.9 when D is the maximum inside diameter in millimeters in a direction which orthogonally intersects the axial direction of the electrodes in the discharge space and H is the length of the cathode projecting within the discharge space, also in millimeters.
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申请公布号 |
US5986402(A) |
申请公布日期 |
1999.11.16 |
申请号 |
US19970961262 |
申请日期 |
1997.10.30 |
申请人 |
USHIODENKI KABUSHIKI KAISHA |
发明人 |
NARITA, MITSUO;SUGITANI, AKIHIKO;HORIKAWA, YOSHIHIRO;ITO, TAKASHI;IGARASHI, TATSUSHI |
分类号 |
H01J61/073;H01J61/12;H01J61/30;H01J61/82;H01J61/86;H01J61/88;(IPC1-7):H01J17/06 |
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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