FR2469792B1 - - Google Patents

Info

Publication number
FR2469792B1
FR2469792B1 FR7927715A FR7927715A FR2469792B1 FR 2469792 B1 FR2469792 B1 FR 2469792B1 FR 7927715 A FR7927715 A FR 7927715A FR 7927715 A FR7927715 A FR 7927715A FR 2469792 B1 FR2469792 B1 FR 2469792B1
Authority
FR
France
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
FR7927715A
Other languages
French (fr)
Other versions
FR2469792A1 (fr
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
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7927715A priority Critical patent/FR2469792A1/fr
Priority to EP80401501A priority patent/EP0028954A1/fr
Priority to US06/204,176 priority patent/US4393328A/en
Priority to JP15600380A priority patent/JPS5679830A/ja
Publication of FR2469792A1 publication Critical patent/FR2469792A1/fr
Application granted granted Critical
Publication of FR2469792B1 publication Critical patent/FR2469792B1/fr
Granted 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
    • 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

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Microwave Tubes (AREA)
FR7927715A 1979-11-09 1979-11-09 Cathode thermo-ionique, son procede de fabrication et tube electronique incorporant une telle cathode Granted FR2469792A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7927715A FR2469792A1 (fr) 1979-11-09 1979-11-09 Cathode thermo-ionique, son procede de fabrication et tube electronique incorporant une telle cathode
EP80401501A EP0028954A1 (fr) 1979-11-09 1980-10-22 Cathode thermo-ionique, son procédé de fabrication et tube électronique incorporant une telle cathode
US06/204,176 US4393328A (en) 1979-11-09 1980-11-05 Hot cathode, its production process and electron tube incorporating such a cathode
JP15600380A JPS5679830A (en) 1979-11-09 1980-11-07 Hottcathode* method of manufacturing same and electron tube using same cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7927715A FR2469792A1 (fr) 1979-11-09 1979-11-09 Cathode thermo-ionique, son procede de fabrication et tube electronique incorporant une telle cathode

Publications (2)

Publication Number Publication Date
FR2469792A1 FR2469792A1 (fr) 1981-05-22
FR2469792B1 true FR2469792B1 (forum.php) 1982-10-01

Family

ID=9231518

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7927715A Granted FR2469792A1 (fr) 1979-11-09 1979-11-09 Cathode thermo-ionique, son procede de fabrication et tube electronique incorporant une telle cathode

Country Status (4)

Country Link
US (1) US4393328A (forum.php)
EP (1) EP0028954A1 (forum.php)
JP (1) JPS5679830A (forum.php)
FR (1) FR2469792A1 (forum.php)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2050045A (en) * 1979-05-29 1980-12-31 Emi Varian Ltd Thermionic cathode
JPS56102036A (en) * 1980-01-17 1981-08-15 New Japan Radio Co Ltd Manufacture of thermionic emission type cathode
DE3125915A1 (de) * 1981-07-01 1983-01-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum herstellen einer vorratskathode und vorrichtung zur durchfuehrung des verfahrens
DE3238817A1 (de) * 1981-10-29 1983-05-11 Varian Associates, Inc., 94303 Palo Alto, Calif. Elektronenroehre und vorratskathode mit impraegnierung von hohem emissionsvermoegen
ATE30811T1 (de) * 1983-09-30 1987-11-15 Bbc Brown Boveri & Cie Gluehkathode mit hohem emissionsvermoegen fuer eine elektronenroehre und verfahren zu deren herstellung.
JPH0630214B2 (ja) * 1984-04-02 1994-04-20 バリアン・アソシエイツ・インコーポレイテツド 含浸カソードおよびその製造方法
US5266414A (en) * 1988-03-18 1993-11-30 Varian Associates, Inc. Solid solution matrix cathode
DE3913338C2 (de) * 1989-04-22 1999-12-02 Aeg Elektronische Roehren Gmbh Einbettmasse, insbesondere für Kathoden von Elektronenröhren, Verfahren zur Herstellung einer solchen Einbettmasse und Verwendung einer solchen Einbettmasse
FR2658360B1 (fr) * 1990-02-09 1996-08-14 Thomson Tubes Electroniques Procede de fabrication d'une cathode impregnee et cathode obtenue par ce procede.
RU2683243C1 (ru) * 2017-10-03 2019-03-27 Анатолий Степанович Плахотник Магнетрон с тонким катодом
CN109065420A (zh) * 2018-08-09 2018-12-21 中国电子科技集团公司第十二研究所 一种具有三维结构表面的热阴极及其制备方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581408A (en) * 1947-04-16 1952-01-08 Sperry Corp High-frequency electron discharge device
BE550302A (forum.php) * 1955-08-15
BE560502A (forum.php) * 1956-09-05
FR1497992A (fr) * 1966-10-28 1967-10-13 Philips Nv Dispositif équipé d'une diode fonctionnant dans la zone de naissance du courant et diode destinée à un tel dispositif
CH477756A (de) * 1967-02-08 1969-08-31 Philips Nv Elektrische Entladungsröhre mit einer Kathode, deren Inneres ein Aktivierungsmaterial enthält
NL154360B (nl) * 1967-02-08 1977-08-15 Philips Nv Elektrische ontladingsbuis met een kathode die in het inwendige activeringsmateriaal bevat, en kathode bestemd voor een dergelijke ontladingsbuis.
NL154047B (nl) * 1968-01-09 1977-07-15 Philips Nv Elektrische ontladingsbuis met een kathode die in het inwendige activeringsmateriaal bevat, en kathode bestemd voor een dergelijke ontladingsbuis.
US3648096A (en) * 1968-09-26 1972-03-07 Gen Electric Electron beam focusing bipotential cathode
BE759174A (fr) * 1969-11-21 1971-05-19 Philips Nv Cathode a reserve et son procede de realisation
US4165473A (en) * 1976-06-21 1979-08-21 Varian Associates, Inc. Electron tube with dispenser cathode
SU614475A1 (ru) * 1976-08-09 1978-07-05 Предприятие П/Я М-5174 Катод с запасом активного вещества
DE2720553A1 (de) * 1977-05-07 1978-11-09 Licentia Gmbh Verfahren zum herstellen eines vorratskoerpers fuer eine vorratskathode
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
US4101800A (en) * 1977-07-06 1978-07-18 The United States Of America As Represented By The Secretary Of The Navy Controlled-porosity dispenser cathode
EP0004424A1 (en) * 1978-03-23 1979-10-03 Thorn Emi-Varian Limited Thermionic cathode
GB2050045A (en) * 1979-05-29 1980-12-31 Emi Varian Ltd Thermionic cathode

Also Published As

Publication number Publication date
EP0028954A1 (fr) 1981-05-20
FR2469792A1 (fr) 1981-05-22
US4393328A (en) 1983-07-12
JPS5679830A (en) 1981-06-30

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Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse