公开(公告)号：US06252342B1

公开(公告)日：2001-06-26

申请号：US09200193

申请日：1998-11-25

Applicant: Seung Yul Lee ,  Ji Hong Lee ,  Jae Dong Park

Inventor： Seung Yul Lee ,  Ji Hong Lee ,  Jae Dong Park

IPC: H01J128

CPC classification number: H01J9/047 ,  H01J1/28

Abstract: Disclosed is an impregnated cathode structure for a cathode ray tube and its manufacturing method, in which electron emitting material impregnated in a pellet is free from an effect of the welding heat generated when the pellet is secured to a heater sleeve. The impregnated cathode structure has a pellet assembly including a pellet and a pellet fixing sheet. The pellet is attached to a first surface of the pellet fixing sheet, which has a plurality of protuberances. The pellet is manufactured by pressing and sintering, and impregnating electron emitting material into the porous of the pellet. The pellet sleeve is inserted in and welded to a heater sleeve. A heater sleeve is welded to a second surface of the pellet fixing sheet, which is opposite to the first surface.

Abstract translation: 公开了一种用于阴极射线管的浸渍阴极结构及其制造方法，其中浸渍在颗粒中的电子发射材料不受到当颗粒固定在加热套上时产生的焊接热的影响。 浸渍的阴极结构具有包括颗粒和颗粒固定片的颗粒组件。 该颗粒附着在具有多个突起的颗粒固定片的第一表面上。 颗粒通过压制和烧结制造，并将电子发射材料浸渍到颗粒的多孔中。 将颗粒套筒插入并焊接到加热器套筒上。 加热套管焊接在与第一表面相对的颗粒固定片的第二表面上。

公开(公告)号：US06304024B1

公开(公告)日：2001-10-16

申请号：US09466472

申请日：1999-12-17

Applicant: Eiichirou Uda ,  Toshiharu Higuchi ,  Osamu Nakamura ,  Kiyomi Koyama ,  Sadao Matsumoto ,  Yoshiaki Ouchi ,  Kazuo Kobayashi ,  Takashi Sudo ,  Katsuhisa Homma

Inventor： Eiichirou Uda ,  Toshiharu Higuchi ,  Osamu Nakamura ,  Kiyomi Koyama ,  Sadao Matsumoto ,  Yoshiaki Ouchi ,  Kazuo Kobayashi ,  Takashi Sudo ,  Katsuhisa Homma

IPC: H01J128

CPC classification number: H01J23/087 ,  H01J1/28 ,  H01J9/042 ,  H01J23/04 ,  H01J2223/04

Abstract: There is provided an impregnated-type cathode substrate comprising a large particle diameter low porosity region and a small particle diameter high porosity region which is provided in a side of an electron emission surface of the large particle diameter low porosity region and has an average particle diameter smaller than an average particle diameter of the large particle diameter low pore region and a porosity higher than a porosity of the large particle diameter low porosity region, the impregnated-type cathode being impregnated with an electron emission substance.

Abstract translation: 提供了一种浸渍型阴极基板，其包括大粒径低孔隙率区域和小粒径高孔隙率区域，该区域设置在大粒径低孔隙率区域的电子发射表面的一侧，并且具有平均粒径 小于大粒径低孔区域的平均粒径，孔隙率高于大粒径低孔隙率区域的孔隙率，浸渍型阴极浸渍有电子发射物质。

公开(公告)号：US06348756B1

公开(公告)日：2002-02-19

申请号：US08688423

申请日：1996-07-30

Applicant: Georg Gärtner ,  Peter Geittner ,  Ernst Klein

Inventor： Georg Gärtner ,  Peter Geittner ,  Ernst Klein

IPC: H01J128

CPC classification number: H01J1/28

Abstract: An electric discharge tube or discharge lamp comprising a scandate dispenser cathode which is composed of a cathode body and a coating having an emissive surface, said cathode body including a matrix of at least one refractory metal and/or a refractory alloy and a barium compound which is in contact with the matrix material to supply barium to the emissive surface by means of a chemical reaction with said matrix material, and the coating containing one or more multilayers which may include a bottom layer of tungsten and/or a tungsten alloy, an intermediate layer of rhenium and/or a rhenium alloy and a top layer of scandium oxide, a mixture of scandium oxide and rare-earth metal oxides, a scandate and/or a scandium alloy, is characterized by a long service life and a high emission-current density.

Abstract translation: 一种放电管或放电灯，包括由阴极体和具有发射表面的涂层组成的钪酸盐分配器阴极，所述阴极体包括至少一种难熔金属和/或耐火合金的基质和钡化合物， 与基质材料接触以通过与所述基质材料的化学反应将钡供应到发射表面，并且所述涂层含有一个或多个多层，其可以包括钨和/或钨合金的底层，中间体 铼和/或铼合金层和钪氧化物顶层，氧化钪和稀土金属氧化物的混合物，钪酸盐和/或钪合金，其特征在于使用寿命长和发射 - 当前密度。