公开(公告)号：US20010026117A1

公开(公告)日：2001-10-04

申请号：US09877054

申请日：2001-06-11

Inventor： Yoon-Chang Kim ,  Jong-Seo Choi ,  Gyu-Nam Joo

IPC: H01J009/04 ,  H01J001/142

CPC classification number: H01J29/48 ,  H01J1/142 ,  H01J1/20

Abstract: The present invention relates to a cathode for an electron gun for increasing its life cycle under a high current density load by ensuring a diffusion path of reducing component served for generating free radical barium. The present invention discloses a cathode for an electron gun comprising a base metal composed of nickel and at least one kind of reducing component, an upper metal layer formed by spraying powder to the surface of the base metal, implanting Ni thereto, or grinding the surface thereof and heating it, and an electron emitting layer containing alkaline earth metal oxide including at least barium on the upper metal layer.

Abstract translation: 本发明涉及一种用于电子枪的阴极，通过确保用于产生自由基钡的还原成分的扩散路径，在高电流密度负载下增加其寿命。 本发明公开了一种电子枪用阴极，其特征在于，包括由镍构成的母材和至少一种还原成分，通过将粉末喷涂到母材表面而形成的上金属层， 并且在上金属层上含有至少含有钡的碱土金属氧化物的电子发射层。

公开(公告)号：US20030127962A1

公开(公告)日：2003-07-10

申请号：US10134490

申请日：2002-04-30

Inventor： Byung Mook Weon

IPC: H01J001/142 ,  H01J019/062

CPC classification number: H01J1/20 ,  H01J1/142

Abstract: Disclosed is a cathode in a cathode ray tube including a cathode sleeve having a heater inside, a base metal supported by the cathode sleeve so as to be formed at an upper end of the cathode sleeve, and an emission layer formed on the base metal, wherein the emission layer includes alkaline earth metal oxide and Y2O3-doped ThO2. The present invention enables to prevent the degradation of endurance of the cathode by carrying out the generation and extinction of free Ba stably.

Abstract translation: 公开了一种阴极射线管中的阴极，阴极射线管包括具有加热器的阴极套管，由阴极套管支撑以形成在阴极套筒的上端的基底金属以及形成在母体金属上的发射层， 其中所述发射层包括碱土金属氧化物和掺Y2O3的ThO 2。 本发明能够通过稳定地进行游离Ba的产生和消光来防止阴极的耐久性劣化。