DK112397B - Cathode provided with an emitting layer of barium trontium oxide for use in electric discharge pipes. - Google Patents

Cathode provided with an emitting layer of barium trontium oxide for use in electric discharge pipes.

Info

Publication number
DK112397B
DK112397B DK76266AA DK76266A DK112397B DK 112397 B DK112397 B DK 112397B DK 76266A A DK76266A A DK 76266AA DK 76266 A DK76266 A DK 76266A DK 112397 B DK112397 B DK 112397B
Authority
DK
Denmark
Prior art keywords
trontium
barium
oxide
emitting layer
electric discharge
Prior art date
Application number
DK76266AA
Other languages
Danish (da)
Inventor
F Almer
A Kuiper
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 DK112397B publication Critical patent/DK112397B/en

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
DK76266AA 1965-02-17 1966-02-14 Cathode provided with an emitting layer of barium trontium oxide for use in electric discharge pipes. DK112397B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6501944A NL6501944A (en) 1965-02-17 1965-02-17

Publications (1)

Publication Number Publication Date
DK112397B true DK112397B (en) 1968-12-09

Family

ID=19792389

Family Applications (1)

Application Number Title Priority Date Filing Date
DK76266AA DK112397B (en) 1965-02-17 1966-02-14 Cathode provided with an emitting layer of barium trontium oxide for use in electric discharge pipes.

Country Status (10)

Country Link
US (1) US3472693A (en)
AT (1) AT258427B (en)
BE (1) BE676530A (en)
CH (1) CH441514A (en)
DE (1) DE1564381A1 (en)
DK (1) DK112397B (en)
ES (1) ES323084A1 (en)
GB (1) GB1069102A (en)
NL (1) NL6501944A (en)
SE (1) SE218423C1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1103263A (en) * 1953-07-03 1955-11-02 English Electric Valve Co Ltd Improvements to adherent metal coatings
US3159461A (en) * 1958-10-20 1964-12-01 Bell Telephone Labor Inc Thermionic cathode
US3155864A (en) * 1960-03-21 1964-11-03 Gen Electric Dispenser cathode
US3099577A (en) * 1960-08-24 1963-07-30 Philips Corp Method of manufacturing oxide cathodes and cathodes manufactured by such methods
NL113461C (en) * 1961-03-08

Also Published As

Publication number Publication date
ES323084A1 (en) 1967-01-01
GB1069102A (en) 1967-05-17
DE1564381A1 (en) 1970-03-12
BE676530A (en) 1966-08-16
AT258427B (en) 1967-11-27
CH441514A (en) 1967-08-15
US3472693A (en) 1969-10-14
NL6501944A (en) 1966-08-18
SE218423C1 (en) 1968-01-23

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