ES275203A1 - Mejoras de valvulas de descarga electrica - Google Patents

Mejoras de valvulas de descarga electrica

Info

Publication number
ES275203A1
ES275203A1 ES0275203A ES275203A ES275203A1 ES 275203 A1 ES275203 A1 ES 275203A1 ES 0275203 A ES0275203 A ES 0275203A ES 275203 A ES275203 A ES 275203A ES 275203 A1 ES275203 A1 ES 275203A1
Authority
ES
Spain
Prior art keywords
reducing agent
layer
activated
barium
double layer
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
ES0275203A
Other languages
English (en)
Spanish (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 ES275203A1 publication Critical patent/ES275203A1/es
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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H01J1/142—Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material
    • 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

Landscapes

  • Solid Thermionic Cathode (AREA)
ES0275203A 1961-03-08 1962-03-06 Mejoras de valvulas de descarga electrica Expired ES275203A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL262150 1961-03-08

Publications (1)

Publication Number Publication Date
ES275203A1 true ES275203A1 (es) 1962-05-01

Family

ID=19752920

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0275203A Expired ES275203A1 (es) 1961-03-08 1962-03-06 Mejoras de valvulas de descarga electrica

Country Status (9)

Country Link
US (1) US3333141A (cs)
CH (1) CH412118A (cs)
DE (1) DE1149463B (cs)
DK (1) DK106684C (cs)
ES (1) ES275203A1 (cs)
GB (1) GB994151A (cs)
NL (1) NL113461C (cs)
OA (1) OA00735A (cs)
SE (1) SE306579B (cs)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6501944A (cs) * 1965-02-17 1966-08-18
US3663857A (en) * 1969-02-13 1972-05-16 Avco Corp Electron emitter comprising metal oxide-metal contact interface and method for making the same
US3898721A (en) * 1973-05-18 1975-08-12 Gte Sylvania Inc Diffusion bonded cathode for electron discharge device
US3875629A (en) * 1973-05-18 1975-04-08 Gte Sylvania Inc Method of fabricating cathodes for electron discharge devices
DE3323473A1 (de) * 1983-06-29 1985-01-03 Siemens AG, 1000 Berlin und 8000 München Schnellheizkathode
KR100195955B1 (ko) * 1995-12-20 1999-06-15 구자홍 음극구조체의 구조 및 전자방사체 도포방법
DE102008041443A1 (de) 2008-08-22 2010-02-25 Robert Bosch Gmbh Getriebe-Antriebseinheit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950993A (en) * 1956-04-02 1960-08-30 Rca Corp Oxide coated cathodes and method of manufacture
US3159461A (en) * 1958-10-20 1964-12-01 Bell Telephone Labor Inc Thermionic cathode
US2945150A (en) * 1958-12-11 1960-07-12 Gen Electric Thermionic cathodes and methods of making
US2995674A (en) * 1959-02-27 1961-08-08 Raytheon Co Impregnated cathodes
NL255625A (cs) * 1959-09-18

Also Published As

Publication number Publication date
CH412118A (de) 1966-04-30
DK106684C (da) 1967-03-06
SE306579B (cs) 1968-12-02
DE1149463B (de) 1963-05-30
GB994151A (en) 1965-06-02
NL113461C (cs)
OA00735A (fr) 1967-07-15
US3333141A (en) 1967-07-25

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