DE2449796C3 - Vorratskathode für eine gittergesteuerte Elektronenröhre und Verfahren zu ihrer Herstellung - Google Patents

Vorratskathode für eine gittergesteuerte Elektronenröhre und Verfahren zu ihrer Herstellung

Info

Publication number
DE2449796C3
DE2449796C3 DE2449796A DE2449796A DE2449796C3 DE 2449796 C3 DE2449796 C3 DE 2449796C3 DE 2449796 A DE2449796 A DE 2449796A DE 2449796 A DE2449796 A DE 2449796A DE 2449796 C3 DE2449796 C3 DE 2449796C3
Authority
DE
Germany
Prior art keywords
cathode
grid
emission
projections
surface areas
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
DE2449796A
Other languages
German (de)
English (en)
Other versions
DE2449796A1 (de
DE2449796B2 (de
Inventor
Horst Dipl.-Phys. Seifert
Reinhard Ziegler
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.)
Philips Intellectual Property and Standards GmbH
Original Assignee
Philips Patentverwaltung GmbH
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 Patentverwaltung GmbH filed Critical Philips Patentverwaltung GmbH
Priority to DE2449796A priority Critical patent/DE2449796C3/de
Priority to US05/619,061 priority patent/US4031425A/en
Priority to NL7511842A priority patent/NL7511842A/xx
Priority to CA237,768A priority patent/CA1046132A/en
Priority to GB42448/75A priority patent/GB1525396A/en
Priority to JP12388675A priority patent/JPS563614B2/ja
Priority to FR7531872A priority patent/FR2288384A1/fr
Publication of DE2449796A1 publication Critical patent/DE2449796A1/de
Publication of DE2449796B2 publication Critical patent/DE2449796B2/de
Application granted granted Critical
Publication of DE2449796C3 publication Critical patent/DE2449796C3/de
Expired 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)
DE2449796A 1974-10-19 1974-10-19 Vorratskathode für eine gittergesteuerte Elektronenröhre und Verfahren zu ihrer Herstellung Expired DE2449796C3 (de)

Priority Applications (7)

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
US05/619,061 US4031425A (en) 1974-10-19 1975-10-02 Dispenser cathode for a grid-controlled electron tube and method of manufacturing same
NL7511842A NL7511842A (nl) 1974-10-19 1975-10-09 Voorraadkathode voor een roostergestuurde elek- tronenbuis en werkwijze voor het vervaardigen daarvan.
GB42448/75A GB1525396A (en) 1974-10-19 1975-10-16 Sintered cathode
CA237,768A CA1046132A (en) 1974-10-19 1975-10-16 Dispenser cathode for a grid-controlled electron tube and method of manufacturing same
JP12388675A JPS563614B2 (enExample) 1974-10-19 1975-10-16
FR7531872A 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

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 (3)

Publication Number Publication Date
DE2449796A1 DE2449796A1 (de) 1976-04-22
DE2449796B2 DE2449796B2 (de) 1979-05-23
DE2449796C3 true DE2449796C3 (de) 1980-03-06

Family

ID=5928705

Family Applications (1)

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

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)

Families Citing this family (6)

* 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
NL8105921A (nl) * 1981-12-31 1983-07-18 Philips Nv Televisiekamerabuis.
CH678671A5 (enExample) * 1989-08-22 1991-10-15 Asea Brown Boveri
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

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
FR2288384A1 (fr) 1976-05-14
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
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee