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1. 发明授权

US06791251B2 Metal cathode and indirectly heated cathode assembly having the same 失效
标题翻译：具有相同的金属阴极和间接加热的阴极组件
公开(公告)号：US06791251B2
公开(公告)日：2004-09-14
申请号：US10077762
申请日：2002-02-20
申请人： Dong-Kyun Seo , Jong-Seo Choi , Kyoung-Cheon Son , Kyu-Nam Joo , Sung-Hwan Moon , Yoon-Chang Kim , Seung-Kwon Han , Bu-Chul Sin
发明人： Dong-Kyun Seo , Jong-Seo Choi , Kyoung-Cheon Son , Kyu-Nam Joo , Sung-Hwan Moon , Yoon-Chang Kim , Seung-Kwon Han , Bu-Chul Sin
IPC分类号： H01J120
CPC分类号： H01J1/146 , H01J1/20
摘要： A metal cathode for an electron-emission device, and an indirectly heated cathode assembly employing the metal cathode where the metal cathode is formed of a quaternary alloy including 0.1-20% by weight barium (Ba), 0.1-20% by weight a metallic mobilizer facilitating Ba diffusion, a metal with a difference in atomic radius of at least 0.4 Angstrom from the atomic radius of platinum (Pt) or palladium (Pd), the metal being in the range of 0.01 to 30% by weight, and a balance of at least one of Pt and Pd. The metal cathode has a low operating temperature due to its reduced work function with improved current emission capability. The metal cathode can be used for a longer lifetime at high current density. Therefore, the metal cathode can be used effectively in electron-beam devices, such as a Braun tube or picture tube, satisfying larger size, longer life span, high definition, and high luminance requirements of the devices.
摘要翻译：用于电子发射器件的金属阴极和使用金属阴极的间接加热的阴极组件，其中金属阴极由包含0.1-20重量％的钡（Ba），0.1-20重量％的金属促进Ba扩散的迁移剂，原子半径不同于铂（Pt）或钯（Pd）的原子半径至少0.4埃的金属，金属在0.01至30重量％的范围内，余量的Pt和Pd中的至少一种。金属阴极具有低的工作温度，由于功率降低，电流发射能力得到改善。金属阴极可以在高电流密度下使用更长的寿命。因此，金属阴极可以有效地用于诸如布朗管或显像管的电子束器件中，满足更大尺寸，更长寿命，高清晰度和高亮度要求的器件。

2. 发明授权

US06762544B2 Metal cathode for electron tube 失效
标题翻译：金属阴极电子管
公开(公告)号：US06762544B2
公开(公告)日：2004-07-13
申请号：US09950777
申请日：2001-09-13
申请人： Yoon-chang Kim , Kyu-nam Joo , Dong-kyun Seo , Bu-chul Sin
发明人： Yoon-chang Kim , Kyu-nam Joo , Dong-kyun Seo , Bu-chul Sin
IPC分类号： H01J120
CPC分类号： H01J1/20
摘要： An indirectly heated metal cathode for an electron tube includes a metal sleeve of an Mo material, a metal emitter disposed on the metal sleeve and including Pt or Pd as a main component; and a buffer layer between the metal sleeve and the metal emitter. The buffer layer prevents Mo, an element of the metal sleeve, from diffusing into the emitter during the operation of the metal cathode so that electron-emitting performance does not decrease rapidly with operating time due to an increase in a work function. Therefore, the metal cathode satisfies a long life span requirement for large scale and high definition electron tubes.
摘要翻译：用于电子管的间接加热的金属阴极包括Mo材料的金属套筒，设置在金属套筒上并包括Pt或Pd作为主要成分的金属发射体; 以及金属套筒和金属发射器之间的缓冲层。缓冲层防止金属套筒的元件在金属阴极的操作过程中扩散到发射极中，使得随着功函数的增加，电子发射性能不会随着工作时间而急剧下降。因此，金属阴极满足大规模，高清晰度电子管的长寿命要求。

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