DK75828C - Elektrisk udladningsrør indeholdende en katode, aktiveret med alkaliske jordmetaloksyder. - Google Patents

Elektrisk udladningsrør indeholdende en katode, aktiveret med alkaliske jordmetaloksyder.

Info

Publication number
DK75828C
DK75828C DK325950A DK325950A DK75828C DK 75828 C DK75828 C DK 75828C DK 325950 A DK325950 A DK 325950A DK 325950 A DK325950 A DK 325950A DK 75828 C DK75828 C DK 75828C
Authority
DK
Denmark
Prior art keywords
cathode
activated
alkaline earth
earth metal
metal oxides
Prior art date
Application number
DK325950A
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 DK75828C publication Critical patent/DK75828C/da

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/002—Chemical composition and manufacture chemical
DK325950A 1949-10-10 1950-10-07 Elektrisk udladningsrør indeholdende en katode, aktiveret med alkaliske jordmetaloksyder. DK75828C (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1025757X 1949-10-10

Publications (1)

Publication Number Publication Date
DK75828C true DK75828C (da) 1953-05-11

Family

ID=19867247

Family Applications (1)

Application Number Title Priority Date Filing Date
DK325950A DK75828C (da) 1949-10-10 1950-10-07 Elektrisk udladningsrør indeholdende en katode, aktiveret med alkaliske jordmetaloksyder.

Country Status (4)

Country Link
CH (1) CH289829A (de)
DE (1) DE857419C (de)
DK (1) DK75828C (de)
FR (1) FR1025757A (de)

Also Published As

Publication number Publication date
CH289829A (de) 1953-03-31
FR1025757A (fr) 1953-04-20
DE857419C (de) 1952-11-27

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