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1. 发明公开

EP3016131A1 DISCHARGE LAMP 有权转让
标题翻译：放电灯
公开(公告)号：EP3016131A1
公开(公告)日：2016-05-04
申请号：EP14817580.5
申请日：2014-06-17
申请人： Ushio Denki Kabushiki Kaisha
发明人： TAGAWA, Yukiharu , ARIMOTO, Tomoyoshi , FUNAKOSHI, Mitsuo , YASUDA, Yukio , OTOSHIMA, Yuki , IWABAYASHI, Hirohisa
IPC分类号： H01J61/06 , H01J61/073
CPC分类号： H01J61/0737 , H01J61/0732 , H01J61/0735
摘要： A discharge lamp includes an emitter other than thorium, which is added to a cathode in a luminous tube. Early depletion of the emitter due to excessive vaporization of the emitter from the cathode is prevented, while achieving stable lighting even at the start-up of the lighting. A main body part (31) of the cathode (3) is made from a high-melting-point metal material that contains no thorium, and a front end part (32) thereof is made from a high-melting-point metal material that contains an emitter (other than thorium). A sintered compact (34), which contains an emitter (other than thorium) at a concentration higher than the emitter contained in the front end part (32), is buried in a sealed space (33) that is formed within the main body part (31) and/or the front end part (32). The sintered compact (34) abuts against the front end part (32).
摘要翻译：放电灯包括除钍之外的发射体，其被添加到发光管中的阴极。即使在照明启动时也可以实现稳定的照明，从而防止了由于发射极从阴极过度蒸发而引起的发射器的尽早耗尽。阴极（3）的主体部分（31）由不含钍的高熔点金属材料制成，并且其前端部分（32）由高熔点金属材料制成，该高熔点金属材料包含一个发射器（除了钍）。在形成于主体部内的密闭空间33内，埋入比前端部32所含的发射体浓度高的发射体（除钍以外）的烧结体34，（31）和/或前端部分（32）。烧结体（34）与前端部（32）抵接。

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