发明名称 |
Short arc type discharge lamp |
摘要 |
A short arc type discharge lamp wherein a cathode and an anode are arranged opposite to each other in an interior of a light emitting tube and said cathode consists of a main body part with tungsten as the main constituent and an emitter part comprised of thoriated tungsten, wherein an oxygen content of the main body part of said cathode is lower than that of the emitter part, and band-shaped tungsten carbide is formed at the tip end face of the emitter part of said cathode. |
申请公布号 |
US8400060(B2) |
申请公布日期 |
2013.03.19 |
申请号 |
US201113245028 |
申请日期 |
2011.09.26 |
申请人 |
ARIMOTO TOMOYOSHI;IKEUCHI MITSURU;SHIMIZU AKIHIRO;USHIO DENKI KABUSHIKI KAISHA |
发明人 |
ARIMOTO TOMOYOSHI;IKEUCHI MITSURU;SHIMIZU AKIHIRO |
分类号 |
H01J17/04 |
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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