FR2288384A1 - Cathode a reserve munie d'un tube electronique comportant une grille de commande et son procede de fabrication - Google Patents

Cathode a reserve munie d'un tube electronique comportant une grille de commande et son procede de fabrication

Info

Publication number
FR2288384A1
FR2288384A1 FR7531872A FR7531872A FR2288384A1 FR 2288384 A1 FR2288384 A1 FR 2288384A1 FR 7531872 A FR7531872 A FR 7531872A FR 7531872 A FR7531872 A FR 7531872A FR 2288384 A1 FR2288384 A1 FR 2288384A1
Authority
FR
France
Prior art keywords
manufacturing process
control grid
tube including
electronic tube
cathode equipped
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
FR7531872A
Other languages
English (en)
French (fr)
Other versions
FR2288384B1 (enExample
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 FR2288384A1 publication Critical patent/FR2288384A1/fr
Application granted granted Critical
Publication of FR2288384B1 publication Critical patent/FR2288384B1/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Microwave Tubes (AREA)
FR7531872A 1974-10-19 1975-10-17 Cathode a reserve munie d'un tube electronique comportant une grille de commande et son procede de fabrication Granted FR2288384A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2449796A DE2449796C3 (de) 1974-10-19 1974-10-19 Vorratskathode für eine gittergesteuerte Elektronenröhre und Verfahren zu ihrer Herstellung

Publications (2)

Publication Number Publication Date
FR2288384A1 true FR2288384A1 (fr) 1976-05-14
FR2288384B1 FR2288384B1 (enExample) 1980-07-18

Family

ID=5928705

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7531872A Granted FR2288384A1 (fr) 1974-10-19 1975-10-17 Cathode a reserve munie d'un tube electronique comportant une grille de commande et son procede de fabrication

Country Status (7)

Country Link
US (1) US4031425A (enExample)
JP (1) JPS563614B2 (enExample)
CA (1) CA1046132A (enExample)
DE (1) DE2449796C3 (enExample)
FR (1) FR2288384A1 (enExample)
GB (1) GB1525396A (enExample)
NL (1) NL7511842A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156450A3 (en) * 1981-12-31 1986-01-08 N.V. Philips' Gloeilampenfabrieken Method of manufacturing a dispenser cathode
FR2651369A1 (fr) * 1989-08-22 1991-03-01 Asea Brown Boveri Gyrotron quasi optique.

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1507544A (en) * 1975-12-29 1978-04-19 English Electric Valve Co Ltd Linear beam tubes
US4361781A (en) * 1980-05-12 1982-11-30 International Business Machines Corporation Multiple electron beam cathode ray tube
KR950006088B1 (ko) * 1992-06-27 1995-06-08 주식회사엘지전자 함침형 음극 구조체의 함침 펠렛트 및 그 제조방법
WO2002091421A1 (fr) * 2001-05-01 2002-11-14 Nikon Corporation Appareil a faisceau d'electrons et son utilisation pour la fabrication

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782334A (en) * 1952-03-10 1957-02-19 Raytheon Mfg Co Velocity modulated electron discharge devices
US3119041A (en) * 1961-12-26 1964-01-21 Gen Electric Bipotential cathode
NL6504397A (enExample) * 1965-04-07 1966-10-10
US3377492A (en) * 1965-08-03 1968-04-09 Hughes Aircraft Co Flood gun for storage tubes having a dome-shaped cathode and dome-shaped grid electrodes
US3500110A (en) * 1967-08-23 1970-03-10 Raytheon Co Noncurrent intercepting electron beam control element
US3648096A (en) * 1968-09-26 1972-03-07 Gen Electric Electron beam focusing bipotential cathode
US3558967A (en) * 1969-06-16 1971-01-26 Varian Associates Linear beam tube with plural cathode beamlets providing a convergent electron stream
US3843902A (en) * 1972-08-24 1974-10-22 Varian Associates Gridded convergent flow electron gun
US3818260A (en) * 1973-03-05 1974-06-18 Sperry Rand Corp Electron gun with masked cathode and non-intercepting control grid

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156450A3 (en) * 1981-12-31 1986-01-08 N.V. Philips' Gloeilampenfabrieken Method of manufacturing a dispenser cathode
FR2651369A1 (fr) * 1989-08-22 1991-03-01 Asea Brown Boveri Gyrotron quasi optique.
CH678671A5 (enExample) * 1989-08-22 1991-10-15 Asea Brown Boveri
US5134343A (en) * 1989-08-22 1992-07-28 Asea Brown Boveri Ltd. Quasi-optical gyrotron having an electron gun with alternating high and low density electron emitting segments

Also Published As

Publication number Publication date
DE2449796A1 (de) 1976-04-22
NL7511842A (nl) 1976-04-21
JPS5165558A (enExample) 1976-06-07
FR2288384B1 (enExample) 1980-07-18
JPS563614B2 (enExample) 1981-01-26
CA1046132A (en) 1979-01-09
DE2449796C3 (de) 1980-03-06
US4031425A (en) 1977-06-21
GB1525396A (en) 1978-09-20
DE2449796B2 (de) 1979-05-23

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Legal Events

Date Code Title Description
DR Decision of the appeal court due to an appeal at law against decisions of the director of the inpi, except decision of lapse
CD Change of name or company name