ES8308449A1 - Un metodo de fabricar un catodo termionico. - Google Patents

Un metodo de fabricar un catodo termionico.

Info

Publication number
ES8308449A1
ES8308449A1 ES517938A ES517938A ES8308449A1 ES 8308449 A1 ES8308449 A1 ES 8308449A1 ES 517938 A ES517938 A ES 517938A ES 517938 A ES517938 A ES 517938A ES 8308449 A1 ES8308449 A1 ES 8308449A1
Authority
ES
Spain
Prior art keywords
thermionic cathode
layers
substrate
producing
cathode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES517938A
Other languages
English (en)
Other versions
ES517938A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES517938A0 publication Critical patent/ES517938A0/es
Publication of ES8308449A1 publication Critical patent/ES8308449A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/14—Solid thermionic cathodes characterised by the material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Vapour Deposition (AREA)
  • Solid Thermionic Cathode (AREA)

Abstract

METODO PARA FABRICAR UN CATODO TERMOIONICO CON UNA CAPA DE REVESTIMIENTO POLICRISTALINO DE METAL DE ALTO PUNTO DE FUSION, QUE SE DEPOSITA SOBRE CAPAS SUBYACENTES. COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, SE FORMA UNA CAPA DE SOPORTE DE METAL DE ALTO PUNTO DE FUSION, COMO MATERIAL DE BASE, Y AL MENOS UN IMPURIFICADOR PARA LA ESTABILIZACION MECANICA DE LA ESTRUCTURA; SEGUNDA, SE PREPARAN UNA SERIE DE CAPAS QUE, DURANTE EL FUNCIONAMIENTO DEL CATODO, ACTUAN COMO REGION DE SUMINISTRO Y ABASTECIMIENTO; TERCERA, SE PREPARA UNA CAPA DE REVESTIMIENTO POLICRISTALINA ORIENTADA, HECHA DE UN METAL CON ALTO PUNTO DE FUSION; CUARTA, SE ELIMINA EL SUBSTRATO; Y POR ULTIMO, SE DISPONEN EN LA CAPA DE SOPORTE CONEXIONES PARA EL CALENTAMIENTO.
ES517938A 1981-12-08 1982-12-06 Un metodo de fabricar un catodo termionico. Expired ES8308449A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813148441 DE3148441A1 (de) 1981-12-08 1981-12-08 Verfahren zur herstellung einer thermionischen kathode

Publications (2)

Publication Number Publication Date
ES517938A0 ES517938A0 (es) 1983-08-16
ES8308449A1 true ES8308449A1 (es) 1983-08-16

Family

ID=6148121

Family Applications (1)

Application Number Title Priority Date Filing Date
ES517938A Expired ES8308449A1 (es) 1981-12-08 1982-12-06 Un metodo de fabricar un catodo termionico.

Country Status (7)

Country Link
US (1) US4533852A (es)
EP (1) EP0081270B1 (es)
JP (1) JPS58106735A (es)
CA (1) CA1211737A (es)
DE (2) DE3148441A1 (es)
ES (1) ES8308449A1 (es)
HU (1) HU194646B (es)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3300449A1 (de) * 1983-01-08 1984-07-12 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur herstellung einer elektrode fuer eine hochdruckgasentladungslampe
EP0143222B1 (de) * 1983-09-30 1987-11-11 BBC Aktiengesellschaft Brown, Boveri & Cie. Glühkathode mit hohem Emissionsvermögen für eine Elektronenröhre und Verfahren zu deren Herstellung
NL8304401A (nl) * 1983-12-22 1985-07-16 Philips Nv Oxydkathode.
DE3347036C2 (de) * 1983-12-24 1986-04-24 Fr. Kammerer GmbH, 7530 Pforzheim Verfahren zum Beschichten von Trägern mit Metallen
US4574219A (en) * 1984-05-25 1986-03-04 General Electric Company Lighting unit
DE3446334A1 (de) * 1984-12-19 1986-06-19 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur herstellung von <111>-vorzugsorientiertem wolfram
DE3622614A1 (de) * 1986-07-05 1988-01-14 Philips Patentverwaltung Verfahren zur herstellung von elektrisch leitenden formkoerpern durch plasmaaktivierte chemische abscheidung aus der gasphase
GB2202865A (en) * 1987-03-26 1988-10-05 Plessey Co Plc Thin film deposition process
DE3919724A1 (de) * 1989-06-16 1990-12-20 Philips Patentverwaltung Verfahren zur herstellung von erdalkalimetallhaltigen und/oder erdalkalimetalloxidhaltigen materialien
DE4113085A1 (de) * 1991-04-22 1992-10-29 Philips Patentverwaltung Verfahren zur herstellung eines gluehkathodenelements
DE4305558A1 (de) * 1993-02-24 1994-08-25 Asea Brown Boveri Verfahren zur Herstellung von Drähten, welche insbesondere für Kathoden von Elektronenröhren geeignet sind
US5391523A (en) * 1993-10-27 1995-02-21 Marlor; Richard C. Electric lamp with lead free glass
DE4421793A1 (de) * 1994-06-22 1996-01-04 Siemens Ag Thermionischer Elektronenemitter für eine Elektronenröhre
US6071595A (en) * 1994-10-26 2000-06-06 The United States Of America As Represented By The National Aeronautics And Space Administration Substrate with low secondary emissions
FR2745951B1 (fr) * 1996-03-05 1998-06-05 Thomson Csf Cathode thermoionique et son procede de fabrication
US5856726A (en) * 1996-03-15 1999-01-05 Osram Sylvania Inc. Electric lamp with a threaded electrode
TW398003B (en) * 1998-06-25 2000-07-11 Koninkl Philips Electronics Nv Electron tube comprising a semiconductor cathode
US6815876B1 (en) * 1999-06-23 2004-11-09 Agere Systems Inc. Cathode with improved work function and method for making the same
US6559582B2 (en) * 2000-08-31 2003-05-06 New Japan Radio Co., Ltd. Cathode and process for producing the same
KR20020068644A (ko) * 2001-02-21 2002-08-28 삼성에스디아이 주식회사 금속 음극 및 이를 구비한 방열형 음극구조체
FR2863769B1 (fr) * 2003-12-12 2006-03-24 Ge Med Sys Global Tech Co Llc Procede de fabrication d'un filament de cathode d'un tube a rayons x et tube a rayons x
US7795792B2 (en) * 2006-02-08 2010-09-14 Varian Medical Systems, Inc. Cathode structures for X-ray tubes
JP5341890B2 (ja) 2007-07-24 2013-11-13 コーニンクレッカ フィリップス エヌ ヴェ 熱イオン電子エミッタ、熱イオン電子エミッタを作成する方法、及び熱イオン電子エミッタを含むｘ線源
DE102008020164A1 (de) * 2008-04-22 2009-10-29 Siemens Aktiengesellschaft Kathode mit einem Flachemitter
US20090284124A1 (en) * 2008-04-22 2009-11-19 Wolfgang Kutschera Cathode composed of materials with different electron works functions
JP2017107816A (ja) * 2015-12-11 2017-06-15 株式会社堀場エステック 熱電子放出用フィラメント、四重極質量分析計、及び残留ガス分析方法
CN114008742A (zh) * 2019-08-06 2022-02-01 株式会社东芝 放电灯用阴极部件及放电灯

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2843517A (en) * 1955-03-24 1958-07-15 Sylvania Electric Prod Adhering coatings to cathode base metal
US3159461A (en) * 1958-10-20 1964-12-01 Bell Telephone Labor Inc Thermionic cathode
GB962926A (en) * 1962-03-19 1964-07-08 Rank Bush Murphy Ltd Improvements in thermionic cathodes and in methods of manufacturing such cathodes
US3290543A (en) * 1963-06-03 1966-12-06 Varian Associates Grain oriented dispenser thermionic emitter for electron discharge device
US3558966A (en) * 1967-03-01 1971-01-26 Semicon Associates Inc Directly heated dispenser cathode
US3488549A (en) * 1968-01-15 1970-01-06 Gen Electric Dispenser cathode material and method of manufacture
US3630770A (en) * 1969-04-30 1971-12-28 Gen Electric Method for fabricating lanthanum boride cathodes
US4019081A (en) * 1974-10-25 1977-04-19 Bbc Brown Boveri & Company Limited Reaction cathode
NL165880C (nl) * 1975-02-21 1981-05-15 Philips Nv Naleveringskathode.
GB1579249A (en) * 1977-05-18 1980-11-19 Denki Kagaku Kogyo Kk Thermionic cathodes
DE2822665A1 (de) * 1978-05-05 1979-11-08 Bbc Brown Boveri & Cie Gluehkathodenmaterial
FR2475796A1 (fr) * 1980-02-12 1981-08-14 Thomson Csf Cathode a chauffage direct, son procede de fabrication, et tube electronique incorporant une telle cathode
FR2498372A1 (fr) * 1981-01-16 1982-07-23 Thomson Csf Cathode a chauffage direct, son procede de fabrication, et tube electronique incorporant une telle cathode

Also Published As

Publication number Publication date
EP0081270A2 (de) 1983-06-15
JPH0354415B2 (es) 1991-08-20
ES517938A0 (es) 1983-08-16
US4533852A (en) 1985-08-06
JPS58106735A (ja) 1983-06-25
EP0081270B1 (de) 1986-12-03
DE3148441A1 (de) 1983-07-21
CA1211737A (en) 1986-09-23
HU194646B (en) 1988-02-29
DE3274598D1 (en) 1987-01-15
EP0081270A3 (en) 1984-06-06

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000301