CH412118A - Elektrische Entladungsröhre mit einer Kathode, die aussenseitig aus barium-aktivierten Erdalkalimetalloxyden besteht - Google Patents

Elektrische Entladungsröhre mit einer Kathode, die aussenseitig aus barium-aktivierten Erdalkalimetalloxyden besteht

Info

Publication number
CH412118A
CH412118A CH267362A CH267362A CH412118A CH 412118 A CH412118 A CH 412118A CH 267362 A CH267362 A CH 267362A CH 267362 A CH267362 A CH 267362A CH 412118 A CH412118 A CH 412118A
Authority
CH
Switzerland
Prior art keywords
barium
cathode
outside
alkaline earth
earth metal
Prior art date
Application number
CH267362A
Other languages
English (en)
Inventor
Johannes Lemmens Hendrikus
Zalm Pieter
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
Publication of CH412118A publication Critical patent/CH412118A/de

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
CH267362A 1961-03-08 1962-03-05 Elektrische Entladungsröhre mit einer Kathode, die aussenseitig aus barium-aktivierten Erdalkalimetalloxyden besteht CH412118A (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH412118A true CH412118A (de) 1966-04-30

Family

ID=19752920

Family Applications (1)

Application Number Title Priority Date Filing Date
CH267362A CH412118A (de) 1961-03-08 1962-03-05 Elektrische Entladungsröhre mit einer Kathode, die aussenseitig aus barium-aktivierten Erdalkalimetalloxyden besteht

Country Status (9)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6501944A (de) * 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 (de) * 1959-09-18

Also Published As

Publication number Publication date
SE306579B (de) 1968-12-02
DE1149463B (de) 1963-05-30
US3333141A (en) 1967-07-25
NL113461C (de)
DK106684C (da) 1967-03-06
GB994151A (en) 1965-06-02
OA00735A (fr) 1967-07-15
ES275203A1 (es) 1962-05-01

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