FR2494035A1 - Cathode thermo-electronique pour tube hyperfrequences et tube incorporant une telle cathode - Google Patents

Cathode thermo-electronique pour tube hyperfrequences et tube incorporant une telle cathode Download PDF

Info

Publication number
FR2494035A1
FR2494035A1 FR8023884A FR8023884A FR2494035A1 FR 2494035 A1 FR2494035 A1 FR 2494035A1 FR 8023884 A FR8023884 A FR 8023884A FR 8023884 A FR8023884 A FR 8023884A FR 2494035 A1 FR2494035 A1 FR 2494035A1
Authority
FR
France
Prior art keywords
thermo
cathode according
electronic
tungsten
impregnated
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.)
Granted
Application number
FR8023884A
Other languages
English (en)
French (fr)
Other versions
FR2494035B1 (enExample
Inventor
Pierre Palluel
Arvind Shroff
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.)
Thales SA
Original Assignee
Thomson CSF SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9247818&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR2494035(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR8023884A priority Critical patent/FR2494035A1/fr
Priority to EP81401713A priority patent/EP0052047B2/fr
Priority to DE8181401713T priority patent/DE3173470D1/de
Priority to US06/318,316 priority patent/US4494035A/en
Priority to JP17731181A priority patent/JPS57107534A/ja
Publication of FR2494035A1 publication Critical patent/FR2494035A1/fr
Application granted granted Critical
Publication of FR2494035B1 publication Critical patent/FR2494035B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/04—Cathodes

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Microwave Tubes (AREA)
FR8023884A 1980-11-07 1980-11-07 Cathode thermo-electronique pour tube hyperfrequences et tube incorporant une telle cathode Granted FR2494035A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR8023884A FR2494035A1 (fr) 1980-11-07 1980-11-07 Cathode thermo-electronique pour tube hyperfrequences et tube incorporant une telle cathode
EP81401713A EP0052047B2 (fr) 1980-11-07 1981-10-27 Cathode thermo-électronique
DE8181401713T DE3173470D1 (en) 1980-11-07 1981-10-27 Thermoelectronic cathode
US06/318,316 US4494035A (en) 1980-11-07 1981-11-04 Thermoelectric cathode for a hyperfrequency valve and valves incorporating such cathodes
JP17731181A JPS57107534A (en) 1980-11-07 1981-11-06 Ultrahigh frequency therma electro cathode and electron tube thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8023884A FR2494035A1 (fr) 1980-11-07 1980-11-07 Cathode thermo-electronique pour tube hyperfrequences et tube incorporant une telle cathode

Publications (2)

Publication Number Publication Date
FR2494035A1 true FR2494035A1 (fr) 1982-05-14
FR2494035B1 FR2494035B1 (enExample) 1983-05-13

Family

ID=9247818

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8023884A Granted FR2494035A1 (fr) 1980-11-07 1980-11-07 Cathode thermo-electronique pour tube hyperfrequences et tube incorporant une telle cathode

Country Status (5)

Country Link
US (1) US4494035A (enExample)
EP (1) EP0052047B2 (enExample)
JP (1) JPS57107534A (enExample)
DE (1) DE3173470D1 (enExample)
FR (1) FR2494035A1 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0719530B2 (ja) * 1984-06-29 1995-03-06 株式会社日立製作所 陰極線管
JPH0416344Y2 (enExample) * 1985-07-02 1992-04-13
FR2596198A1 (fr) * 1986-03-19 1987-09-25 Thomson Csf Cathodes pour klystron a faisceaux multiples, klystron comportant de telles cathodes et procede de fabrication de telles cathodes
JPS63236239A (ja) * 1987-03-10 1988-10-03 シーメンス、アクチエンゲゼルシヤフト 放電管用デイスペンサー陰極とその製法
US4810926A (en) * 1987-07-13 1989-03-07 Syracuse University Impregnated thermionic cathode
US5266414A (en) * 1988-03-18 1993-11-30 Varian Associates, Inc. Solid solution matrix cathode
FR2647952A1 (fr) * 1989-05-30 1990-12-07 Thomson Tubes Electroniques Cathode thermoelectronique impregnee pour tube electronique
CH678671A5 (enExample) * 1989-08-22 1991-10-15 Asea Brown Boveri
DE19527723A1 (de) * 1995-07-31 1997-02-06 Philips Patentverwaltung Elektrische Entladungsröhre oder Entladungslampe und Scandat-Vorratskathode
JP3696720B2 (ja) * 1997-07-09 2005-09-21 松下電器産業株式会社 含浸型陰極とその製造方法
JPH11102636A (ja) 1997-09-26 1999-04-13 Matsushita Electron Corp 陰極、陰極の製造方法、受像管
US6495949B1 (en) * 1999-11-03 2002-12-17 Orion Electric Co., Ltd. Electron tube cathode
FR2833406A1 (fr) * 2001-12-10 2003-06-13 Thomson Licensing Sa Cathode pour tube a vide a duree de vie amelioree
CN103311066B (zh) * 2013-06-03 2015-08-19 哈尔滨工业大学 具有内芯的用于航天器自持空心阴极的发射体
CN116387116B (zh) * 2023-03-29 2025-05-30 中国科学院空天信息创新研究院 浸渍型阴极及其制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719856A (en) * 1971-05-19 1973-03-06 O Koppius Impregnants for dispenser cathodes

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE526506A (enExample) * 1953-02-16
NL198428A (enExample) * 1954-06-29
BE543391A (enExample) * 1954-12-06
US3076915A (en) * 1954-12-24 1963-02-05 Egyesuelt Izzolampa Cathode assembly and method of making same
NL272981A (enExample) * 1961-01-02
US3373307A (en) * 1963-11-21 1968-03-12 Philips Corp Dispenser cathode
US3558966A (en) * 1967-03-01 1971-01-26 Semicon Associates Inc Directly heated dispenser cathode
BE759174A (fr) * 1969-11-21 1971-05-19 Philips Nv Cathode a reserve et son procede de realisation
US3842309A (en) * 1970-11-12 1974-10-15 Philips Corp Method of manufacturing a storage cathode and cathode manufactured by said method
DE2245717A1 (de) * 1972-09-18 1974-03-28 Patra Patent Treuhand Elektrode mit einem poroesen sinterkoerper
US4165473A (en) * 1976-06-21 1979-08-21 Varian Associates, Inc. Electron tube with dispenser cathode
FR2390825A1 (fr) * 1977-05-13 1978-12-08 Thomson Csf Cathode thermo-ionique a grille incorporee, son procede de fabrication et tube electronique comportant une telle cathode
DE2808134A1 (de) * 1978-02-25 1979-08-30 Licentia Gmbh Vorratskathode
US4310603A (en) * 1978-11-30 1982-01-12 Varian Associates, Inc. Dispenser cathode
JPS5652835A (en) * 1979-10-01 1981-05-12 Hitachi Ltd Impregnated cathode

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719856A (en) * 1971-05-19 1973-03-06 O Koppius Impregnants for dispenser cathodes

Also Published As

Publication number Publication date
EP0052047B2 (fr) 1990-05-02
DE3173470D1 (en) 1986-02-20
US4494035A (en) 1985-01-15
JPS57107534A (en) 1982-07-05
FR2494035B1 (enExample) 1983-05-13
EP0052047A1 (fr) 1982-05-19
EP0052047B1 (fr) 1986-01-08

Similar Documents

Publication Publication Date Title
FR2494035A1 (fr) Cathode thermo-electronique pour tube hyperfrequences et tube incorporant une telle cathode
US5504386A (en) Photomultiplier tube having a metal-made sidewall
FR2709373A1 (fr) Fixateur de gaz, dispositif fixateur de gaz et dispositif d'affichage fluorescent.
GB2083686A (en) Electrochemical storage cell
FR2691567A1 (fr) Dispositif d'affichage fluorescent.
US3788892A (en) Method of producing a window device
US4994709A (en) Method for making a cathader with integral shadow grid
US4310603A (en) Dispenser cathode
US4770310A (en) Casing for display device
EP0300566A1 (fr) Source d'ions de métaux liquides à arc sous vide
US6114806A (en) Hermetic container
FR2493036A1 (fr) Photocathode bialcaline a reponse spectrale elargie et procede de fabrication
EP0056749A2 (fr) Cathode à chauffage direct, et son procédé de fabrication
CA1150763A (en) Method of fabricating a dispenser cathode
US4976644A (en) Manufacturing method for dispenser cathode for an electron gun
US4155024A (en) Image tube having output fluorescent screen coated with porous and solid aluminum layers
US4371809A (en) Integral-shadow-grid controlled-porosity dispenser cathode
EP0038742B1 (fr) Procédé de réalisation d'une cathode imprégnée à grille intégrée, cathode obtenue par ce procédé, et tube électronique muni d'une telle cathode
EP0802559A1 (fr) Ecran plat de visualisation à source d'hydrogène
US4333031A (en) Photomultiplier tube having directional alkali metal vapor evaporation means
FR2765391A1 (fr) Dispositif d'affichage a cathodes a emission de champ
FR2598255A1 (fr) Structure de cathode distributrice perfectionnee, specialement adaptee aux tubes cathodiques.
FR2759202A1 (fr) Dispositif emetteur d'electrons et dispositif d'affichage pourvu d'un tel dispositif
US4150165A (en) Lead monoxide target and method of manufacturing same
JPH087812A (ja) Ｘ線蛍光増倍管

Legal Events

Date Code Title Description
ST Notification of lapse