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公开(公告)号：EP1959473A3
公开(公告)日：2008-09-03
申请号：EP08157352.9
申请日：2004-02-13
Applicant: Mapper Lithography IP B.V.
Inventor： Kruit, Pieter , Steenbrink, Stijn Willem Herman Karel
IPC: H01J1/28
CPC classification number: H01J37/065 , B82Y10/00 , B82Y40/00 , H01J1/28 , H01J37/3177 , H01J2237/3175 , H01J2237/31754 , H01J2237/31774
Abstract: A dispenser cathode which comprises an emission surface (4), a reservoir for material releasing (2), when heated, work-function-lowering particles, and at least one passage (7) for allowing diffusion of work-function-lowering particles from said reservoir to said emission surface, said emission surface comprising at least one emission area (9) and at least one non-emission area (8) covered with emission-suppressing material and surrounding each emission area, said non-emission area comprising at least one passage connecting said reservoir with said non-emission area and debouching within a diffusion length distance from an emission area for allowing diffusion of work-function-lowering particles from said reservoir to said emission area.
Abstract translation: 一种分配器阴极，其包括发射表面（4），用于材料释放的储存器（2），当被加热时，功函数降低颗粒以及用于允许功函数降低颗粒从其扩散的至少一个通道（7） 所述储存器至所述发射表面，所述发射表面包括至少一个发射区域（9）和至少一个非发射区域（8），所述至少一个非发射区域覆盖有抑制发射的材料并且围绕每个发射区域，所述非发射区域至少包括 一个通道将所述储存器与所述非发射区域连接并且在距离发射区域的扩散长度距离内进行泄漏，以允许功函数降低颗粒从所述储存器扩散至所述发射区域。
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公开(公告)号：EP1831908A2
公开(公告)日：2007-09-12
申请号：EP05850067.9
申请日：2005-12-13
Inventor： GÄRTNER, Georg, Friedrich , KLEIN, Ernst
IPC: H01J1/28
CPC classification number: H01J1/28
Abstract: A scandate dispenser cathode having a cathode body (4) arranged on a cathode support (3), a cathode coating (5, 6) comprising a layer system (6) consisting of one or more alternating layers of rhenium or a rhenium alloy (61) and of scandium oxide or a scandium alloy (62), and an activation acceleration layer system (5) arranged between the cathode body (4) and the layer system (6), said activation acceleration layer system comprising at least one release layer (52) comprising alkaline earth metal oxide, preferably barium oxide, and an activator layer system (51) comprising a barrier material with greater oxidation resistance than the material of the cathode body and an activator material for reducing the alkaline earth metal oxide, preferably barium oxide.
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公开(公告)号：EP1825489A1
公开(公告)日：2007-08-29
申请号：EP05826733.7
申请日：2005-12-05
Inventor： GÄRTNER, G., c/o Philips Int. Prop. & Stds. GmbH , RONDA, C. R., c/o Philips Int. Prop. & Stds. GmbH
IPC: H01J1/28
CPC classification number: H01J1/28
Abstract: A cathode for electron emission, comprising a heating device (1, 2) for generating temperatures above 300°C, an electrically conductive cathode support (3) which is connected to the heating device (1, 2), and a cathode coating which is applied to the cathode support (3) and consists of an electron-emitting material (4) comprising at least one alkali metal selected from the group consisting of sodium, potassium, rubidium and cesium, with an emission current density > 10 A/m2 at an operating temperature between 300°C and 600°C.
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公开(公告)号：EP1593140A2
公开(公告)日：2005-11-09
申请号：EP04711065.5
申请日：2004-02-13
Applicant: MAPPER LITHOGRAPHY IP B.V.
IPC: H01J1/28
CPC classification number: H01J37/065 , B82Y10/00 , B82Y40/00 , H01J1/28 , H01J37/3177 , H01J2237/3175 , H01J2237/31754 , H01J2237/31774
Abstract: A dispenser cathode which comprises an emission surface (4), a reservoir (1) for material releasing, when heated, work-function-lowering particles, and at least one passage (7) for allowing diffusion of work-function-lowering particles from said reservoir to said emission surface, said emission surface comprising at least one emission area (9) and at least one non-emission area (8) covered with emission-suppressing material and surrounding each emission area, said non-emission area comprising at least one passage connecting said reservoir with said non-emission area and debouching within a diffusion length distance from an emission area for allowing diffusion of work-function-lowering particles from said reservoir to said emission area.
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公开(公告)号：EP1466341A1
公开(公告)日：2004-10-13
申请号：EP02787868.5
申请日：2002-11-29
Applicant: Thomson Licensing S.A.
Inventor： RICAUD, Jean-Luc , ROQUAIS, Jean-Michel
IPC: H01J1/28
CPC classification number: H01J1/28
Abstract: Impregnated cathode for a vacuum tube comprising an emissive part in the form of a porous pellet 11 impregnated with a compound of alkaline earth metals; the pellet is placed in a dish 12 made of a refractory material and covered with a porous metal foil 13 forming the emissive surface of the cathode. Moreover, the pellet has a separation surface 18 between a heavily impregnated zone and a zone 10 which is not impregnated or weakly impregnated so that the said separation surface comprises at least a hollow part facing the emissive surface. By virtue of the shape of this separation surface, the lifetime of the cathode is improved.
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Patent Agency Ranking6.发明公开Cathode emissive body for an impregnated cathode of an electron tube 有权Emittierende Kathodenstrukturfüreine Vorratskathode einerElektronenröhre
公开(公告)号：EP1367620A1
公开(公告)日：2003-12-03
申请号：EP03101521.7
申请日：2003-05-26
Applicant: Thomson Licensing S.A.
Inventor： Pruvost, Jean-Claude , Langot, Jérémy , Adamski, Jean-Rémy
IPC: H01J1/28
Abstract: Body (1) formed from a porous matrix impregnated with an electron-emitting material, defined by external faces (11, 12, 13) that all have a roughness of less than 0.2 µm.
Because of this surface finish, the operation and the lifetime of the cathodes provided with such cathode emissive bodies are substantially improved.Abstract translation: 主体（1）由浸渍有电子发射材料的多孔基体形成，由外表面（11,12,13）限定，其全部具有小于0.2μm的粗糙度。 由于这种表面光洁度，所以提供了这种阴极发射体的阴极的操作和使用寿命大为改善。
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公开(公告)号：EP0720198B1
公开(公告)日：1999-06-09
申请号：EP95309471.1
申请日：1995-12-27
Applicant: SAMSUNG DISPLAY DEVICES CO., LTD.
Inventor： Chang-seob, Kim , Seok-bong, Son , Sang-kyun, Kim , Bong-uk,Jeong
CPC classification number: H01J1/28 , H01J2201/281
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8.发明公开Directly heated cathode structure and manufacturing method thereof 失效Direkt gehitzte Kathodenstruktur und Verfahren zur Herstellung
公开(公告)号：EP0720198A1
公开(公告)日：1996-07-03
申请号：EP95309471.1
申请日：1995-12-27
Applicant: SAMSUNG DISPLAY DEVICES CO., LTD.
Inventor： Chang-seob, Kim , Seok-bong, Son , Sang-kyun, Kim , Bong-uk,Jeong
CPC classification number: H01J1/28 , H01J2201/281
Abstract: A directly heated cathode structure includes a porous pellet (500) in which cathode material is impregnated, a first metal member (510) being fixed to the lower surface of the porous pellet (500), a second metal member (520) being welded with the first metal member (510), and a filament (600) being interposed between the first and second metal members. A method for manufacturing a directly heated cathode structure includes the steps of manufacturing a porous pellet (500) having a multiplicity of cavities, welding a first metal member (510) to the lower surface of the porous pellet by a brazing layer (700), impregnating electron radiating material (600) into the cavities of the pellet, and welding a second metal member (520) to the first metal member (510) so that a filament (600) is disposed between the first and second metal members. Life of the cathode structure is prolonged by this because thermions are not emitted through the lower surface of the pellet.
Abstract translation: 直接加热的阴极结构包括其中浸渍有阴极材料的多孔颗粒（500），固定到多孔颗粒（500）的下表面的第一金属构件（510），第二金属构件（520） 第一金属构件（510）和插入在第一和第二金属构件之间的细丝（600）。 制造直接加热的阴极结构体的方法包括以下步骤：制造具有多个空腔的多孔颗粒（500），通过钎焊层（700）将第一金属构件（510）焊接到多孔颗粒的下表面; 将电子辐射材料（600）浸渍到颗粒的空腔中，并将第二金属构件（520）焊接到第一金属构件（510），使得细丝（600）设置在第一和第二金属构件之间。 阴极结构的寿命由此延长，因为热不会通过颗粒的下表面发射。
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公开(公告)号：EP0641007A2
公开(公告)日：1995-03-01
申请号：EP94300660.1
申请日：1994-01-28
Applicant: SAMSUNG DISPLAY DEVICES CO., LTD.
Inventor： Kim, Chang-seob , Shon, Seok-bong , Kim, Seok-gi , Jang, Dong-gil , Jeong, Bong-uk
Abstract: A direct heating type-cathode structure is provided with filaments (200) which are secured to at least three points on the side surfaces of a porous pellet (100) formed of tungsten or molybdenum, and the cathode material thereof includes an alkaline earth metal oxide of barium. The thus-structured direct-heating-type cathode structure requires a temperature of only 950°C to 980°C to obtain the current density of 10A/cm² and is suitable for use in a color cathode ray tube and specifically in wide-screen televisions and industrial cathode ray tubes.
Abstract translation: 直接加热型阴极结构具有固定在由钨或钼形成的多孔粒料（100）的侧表面上的至少三个点上的丝（200），并且其正极材料包括碱土金属氧化物 的钡。 这样构成的直热式阴极结构体的温度仅为950〜980℃，电流密度为10A / cm 2，适用于彩色阴极射线管，特别适用于宽屏幕电视机 和工业阴极射线管。
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公开(公告)号：EP0390269B1
公开(公告)日：1994-06-29
申请号：EP90200688.1
申请日：1990-03-23
Applicant: Philips Electronics N.V.
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