公开(公告)号：US4864187A

公开(公告)日：1989-09-05

申请号：US864566

申请日：1986-05-16

Applicant: Kinjiro Sano ,  Toyokazu Kamata ,  Keiji Fukuyama ,  Masato Saito ,  Keiji Watanabe

Inventor： Kinjiro Sano ,  Toyokazu Kamata ,  Keiji Fukuyama ,  Masato Saito ,  Keiji Watanabe

IPC: H01J1/20 ,  H01J1/142 ,  H01J1/28 ,  H01J9/04

CPC classification number: H01J1/142 ,  H01J9/042

Abstract: A cathode for an electron tube in accordance with the present invention comprises: a base containing not only nickel as a major element but also a reducing agent; a layer of an electron-emissive substance which is applied to the base and contains not only an alkaline earth metal oxide as a principal component but also a scandium oxide; and a heater for heating the layer.

Abstract translation: 根据本发明的电子管的阴极包括：不仅含有镍作为主要元素，而且还含有还原剂; 电子发射物质的一层，其被施加到基底并且不仅包含碱土金属氧化物作为主要成分，而且包含氧化钪; 以及用于加热该层的加热器。

公开(公告)号：US2963450A

公开(公告)日：1960-12-06

申请号：US72164558

申请日：1958-03-17

Applicant: INTERLECTRIC CORP

Inventor： SCHOLES ADDISON B

IPC: H01J1/142 ,  H01K3/02

CPC classification number: H01J1/142 ,  H01K3/02

公开(公告)号：US2208692A

公开(公告)日：1940-07-23

申请号：US26362939

申请日：1939-03-23

Applicant: RCA CORP

Inventor： WAMSLEY DELOS H

IPC: H01J1/142 ,  H01J7/18

CPC classification number: H01J7/183 ,  H01J1/142

公开(公告)号：US20180158639A1

公开(公告)日：2018-06-07

申请号：US15869352

申请日：2018-01-12

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： GEORG FRIEDRICH GAERTNER ,  WILHELMUS CORNELIS KEUR

IPC: H01J1/142 ,  C23C14/08 ,  H01J23/04 ,  C23C14/34 ,  H01J1/28

CPC classification number: H01J1/142 ,  C23C14/082 ,  C23C14/3414 ,  H01J1/28 ,  H01J23/04

Abstract: The invention relates to the field of production of barium-scandate dispenser cathodes or other barium-scandate materials. A target (66) containing a mixture of BaO, CaO, Al2O3 and Sc2O3 tends to be more stable, the higher the scandia (scandium oxide) content is. However, an increased scandia content results in a reduced emission capability. A destabilizing effect of BaO and CaO reactions is counteracted by the more inert Sc2O3 and also Al2O3 components, as not only an increased scandia content stabilizes the material but also an increased alumina (aluminum oxide) content improves the stability.

公开(公告)号：US20090015128A1

公开(公告)日：2009-01-15

申请号：US11915854

申请日：2006-05-31

Applicant: Uwe Chittka ,  Daniela Buttner ,  Pieter Johannes Stobbelaar ,  Saskia Tromp-Van Den Bogaerdt

Inventor： Uwe Chittka ,  Daniela Buttner ,  Pieter Johannes Stobbelaar ,  Saskia Tromp-Van Den Bogaerdt

IPC: H01J1/14

CPC classification number: H01J1/142 ,  H01J61/06

Abstract: The invention relates to a light-emitting device comprising an electrode with a ceramic oxide material, which is brought in to contact with a reducing agent or a precursor thereof. The reducing agent serves to bind the released oxygen and to control the performance of the light-emitting device.

Abstract translation: 本发明涉及一种发光装置，其包括具有陶瓷氧化物材料的电极，其与还原剂或其前体接触。 还原剂用于结合释放的氧并控制发光器件的性能。

公开(公告)号：US20060076871A1

公开(公告)日：2006-04-13

申请号：US10535638

申请日：2003-11-14

Applicant: George Gaertner ,  David Barratt ,  Christopher Goodhand ,  Detlef Raasch

Inventor： George Gaertner ,  David Barratt ,  Christopher Goodhand ,  Detlef Raasch

IPC: H01J1/14 ,  H01J19/06 ,  H01K1/04

CPC classification number: H01J1/20 ,  H01J1/142

Abstract: A vacuum tube, in particular a cathode ray tube, equipped with at least one oxide cathode comprising a cathode carrier with a cathode base of a cathode metal and a cathode body with a cathode coating of an electron-emitting material that comprises an alkaline earth oxide, selected from the group formed by the oxides of calcium, strontium and 5 barium, and a sintering inhibitor.

Abstract translation: 装有至少一个氧化物阴极的真空管，特别是阴极射线管，包括具有阴极金属的阴极基体的阴极载体和具有电子发射材料的阴极涂层的阴极体的阴极射线管，该电子发射材料包括碱土金属氧化物 选自由钙，锶和5钡的氧化物形成的组，以及烧结抑制剂。

公开(公告)号：US06917148B2

公开(公告)日：2005-07-12

申请号：US10421591

申请日：2003-04-23

Applicant: Jean-Luc Ricaud ,  Gérard Proudhon

Inventor： Jean-Luc Ricaud ,  Gérard Proudhon

IPC: H01J1/20 ,  H01J1/142 ,  H01J29/04

CPC classification number: H01J1/142

Abstract: Cathode comprising a substrate (2) supporting a cathode emissive coating, comprising what is called an emissive central zone (12) and what is called a nonemissive peripheral zone (11); according to the invention: the average density and the emissive zone (12) is greater than that in said nonemissive zone (11), the average thickness in the emissive zone (12) is less than that in the nonemissive zone (11). In this way it is possible to significantly limit the drift in cut-off voltage, while still maintaining good maximum emission performance in DC mode and in pulse mode.

Abstract translation: 阴极包括支撑阴极发射涂层的衬底（2），包括所谓的发射中心区（12）和所谓的非发射周边区（11）; 根据本发明：平均密度和发射区（12）大于所述非发射区（11）中的平均密度和发射区（12），发射区（12）中的平均厚度小于非发射区（11）中的平均密度。 以这种方式，可以显着地限制截止电压的漂移，同时在DC模式和脉冲模式下仍保持良好的最大发射性能。

公开(公告)号：US20040007954A1

公开(公告)日：2004-01-15

申请号：US10457342

申请日：2003-06-09

Inventor： Sachio Koizumi ,  Toshifumi Komiya ,  Norio Iwamura

IPC: H01J017/00

CPC classification number: H01J1/142 ,  H01J1/20 ,  H01J29/04

Abstract: The present invention realizes a cathode ray tube which holds the stable electron emission characteristics when the cathode ray tube is operated in a high current density state for a long time. An electron emissive material layer which constitutes a cathode is formed by dispersing a scandium compound having an average particle size of equal to or less than 1.2 nullm to an oxide layer formed of alkaline earth metal (barium, strontium, calcium) oxide, wherein an atomic weight ratio of scandium with respect to strontium is set to a value within a range of 0.003 to 0.3. A base metal includes a reducing metal containing nickel as a main component and a plate thickness of a surface of a top portion of the base metal which comes into contact with the electron emissive layer is set to a value equal to or more than 0.17 mm.

Abstract translation: 本发明实现了一种阴极射线管，当阴极射线管长时间处于高电流密度状态时，其保持稳定的电子发射特性。 通过将平均粒径等于或小于1.2μm的钪化合物分散到由碱土金属（钡，锶，钙）氧化物形成的氧化物层上形成阴极的电子发射材料层，其中原子 钪相对于锶的重量比设定在0.003〜0.3的范围内。 贱金属包括含有镍作为主要成分的还原金属，并且与电子发射层接触的贱金属的顶部表面的板厚被设定为等于或大于0.17mm的值。

公开(公告)号：US20030164668A1

公开(公告)日：2003-09-04

申请号：US09841954

申请日：2001-04-25

Inventor： Jean-Michel Roquais ,  Fabian Poret ,  Regine Le Doze ,  Marie Paul

IPC: H01J001/14 ,  H01J019/06

CPC classification number: H01J1/142

Abstract: A nickel alloy for the manufacture of cathodes for cathode-ray tubes, comprises magnesium and aluminium in proportions chosen so as to allow good adhesion of an emissive oxide layer to the basis metal cap consisting of the alloy.

Abstract translation: 用于制造用于阴极射线管的阴极的镍合金包括镁和铝的比例，其选择为允许发光氧化物层与由合金组成的基础金属盖的良好粘合。

公开(公告)号：US20020074921A1

公开(公告)日：2002-06-20

申请号：US09954656

申请日：2001-09-18

Inventor： Georg Friedrich Gaertner ,  Petrus Arthur Marie Van Der Heide ,  Wyndham Michael Johnstone

IPC: H01J001/14 ,  H01J019/06

CPC classification number: H01J1/142

Abstract: A cathode ray tube provided with at least one oxide cathode comprising a cathode carrier with a cathode base of a cathode metal and a cathode coating of an electron-emitting material containing a particle-particle composite material of oxide particles of an alkaline earth oxide selected from the group formed by the oxides of calcium, strontium and barium, and oxide particles having a first grain size distribution of an oxide selected from the group formed by the oxides of scandium, yttrium and the lanthanoids, and oxide particles having a second grain size distribution of an oxide selected from the group formed by the oxides of scandium, yttrium and the lanthanoids. The invention also relates to an oxide cathode.

Abstract translation: 具有至少一个氧化物阴极的阴极射线管包括具有阴极金属阴极基体的阴极载体和含有选自以下的碱土金属氧化物颗粒的颗粒 - 复合材料的电子发射材料的阴极涂层： 由钙，锶和钡的氧化物形成的基团，以及选自由钪，钇和镧系元素的氧化物形成的氧化物的第一粒度分布的氧化物粒子和具有第二粒度分布的氧化物粒子 的选自由钪，钇和镧系元素的氧化物形成的氧化物的氧化物。 本发明还涉及氧化物阴极。