DK106684C - Elektronrør med en katode med et yderlag af barium-aktiveret jordalkalimetaloxid. - Google Patents

Elektronrør med en katode med et yderlag af barium-aktiveret jordalkalimetaloxid.

Info

Publication number
DK106684C
DK106684C DK101462AA DK101462A DK106684C DK 106684 C DK106684 C DK 106684C DK 101462A A DK101462A A DK 101462AA DK 101462 A DK101462 A DK 101462A DK 106684 C DK106684 C DK 106684C
Authority
DK
Denmark
Prior art keywords
barium
cathode
metal oxide
outer layer
alkaline earth
Prior art date
Application number
DK101462AA
Other languages
Danish (da)
English (en)
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Application granted granted Critical
Publication of DK106684C publication Critical patent/DK106684C/da

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
DK101462AA 1961-03-08 1962-03-05 Elektronrør med en katode med et yderlag af barium-aktiveret jordalkalimetaloxid. DK106684C (da)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DK106684C true DK106684C (da) 1967-03-06

Family

ID=19752920

Family Applications (1)

Application Number Title Priority Date Filing Date
DK101462AA DK106684C (da) 1961-03-08 1962-03-05 Elektronrør med en katode med et yderlag af barium-aktiveret jordalkalimetaloxid.

Country Status (9)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6501944A (zh) * 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
US3875629A (en) * 1973-05-18 1975-04-08 Gte Sylvania Inc Method of fabricating cathodes for electron discharge devices
US3898721A (en) * 1973-05-18 1975-08-12 Gte Sylvania Inc Diffusion bonded cathode for electron discharge device
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 (zh) * 1959-09-18

Also Published As

Publication number Publication date
SE306579B (zh) 1968-12-02
DE1149463B (de) 1963-05-30
US3333141A (en) 1967-07-25
NL113461C (zh)
CH412118A (de) 1966-04-30
GB994151A (en) 1965-06-02
OA00735A (fr) 1967-07-15
ES275203A1 (es) 1962-05-01

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