发明授权
- 专利标题： Short arc type discharge lamp
- 专利标题（中）： 短弧型放电灯
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申请号： US13348301申请日： 2012-01-11
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公开(公告)号： US08497632B2公开(公告)日： 2013-07-30
- 发明人: Tomoyoshi Arimoto , Akihiro Shimizu , Mitsuru Ikeuchi
- 申请人： Tomoyoshi Arimoto , Akihiro Shimizu , Mitsuru Ikeuchi
- 申请人地址： JP Tokyo
- 专利权人： Ushio Denki Kabushiki Kaisha
- 当前专利权人： Ushio Denki Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Rader, Fishman & Grauer PLLC
- 优先权： JP2011-005412 20110114
- 主分类号： H01J61/04
- IPC分类号： H01J61/04
摘要：
A short arc type discharge lamp includes a cathode and an anode arranged inside an arc tube to face each other. The cathode comprises a main body portion made of tungsten and an emitter portion made of thoriated tungsten that is joined at the tip of the main body portion, where a metal oxide other than thorium (Th) is contained in the main body portion of the cathode, and a tungsten carbide layer is formed on the metal oxide.
公开/授权文献
- US20120181925A1 SHORT ARC TYPE DISCHARGE LAMP 公开/授权日：2012-07-19
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