BE686394A - - Google Patents

Info

Publication number
BE686394A
BE686394A BE686394DA BE686394A BE 686394 A BE686394 A BE 686394A BE 686394D A BE686394D A BE 686394DA BE 686394 A BE686394 A BE 686394A
Authority
BE
Belgium
Prior art keywords
layer
oxide
dark
metal oxide
particles
Prior art date
Application number
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE686394A publication Critical patent/BE686394A/fr

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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22—Heaters

Landscapes

  • Powder Metallurgy (AREA)
  • Glanulating (AREA)
  • Luminescent Compositions (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
BE686394D 1965-09-04 1966-09-02 BE686394A (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6511572A NL6511572A (OSRAM) 1965-09-04 1965-09-04

Publications (1)

Publication Number Publication Date
BE686394A true BE686394A (OSRAM) 1967-03-02

Family

ID=19794057

Family Applications (1)

Application Number Title Priority Date Filing Date
BE686394D BE686394A (OSRAM) 1965-09-04 1966-09-02

Country Status (3)

Country Link
BE (1) BE686394A (OSRAM)
ES (1) ES330824A1 (OSRAM)
NL (1) NL6511572A (OSRAM)

Also Published As

Publication number Publication date
ES330824A1 (es) 1967-09-16
NL6511572A (OSRAM) 1967-03-06

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