FR929004A - Oxide cathode for discharge tubes - Google Patents

Oxide cathode for discharge tubes

Info

Publication number
FR929004A
FR929004A FR929004DA FR929004A FR 929004 A FR929004 A FR 929004A FR 929004D A FR929004D A FR 929004DA FR 929004 A FR929004 A FR 929004A
Authority
FR
France
Prior art keywords
discharge tubes
oxide cathode
cathode
oxide
tubes
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR929004A publication Critical patent/FR929004A/en
Expired legal-status Critical Current

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
    • H01J1/26—Supports for the emissive material
FR929004D 1945-06-15 1946-06-13 Oxide cathode for discharge tubes Expired FR929004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL929004X 1945-06-15

Publications (1)

Publication Number Publication Date
FR929004A true FR929004A (en) 1947-12-15

Family

ID=19861846

Family Applications (1)

Application Number Title Priority Date Filing Date
FR929004D Expired FR929004A (en) 1945-06-15 1946-06-13 Oxide cathode for discharge tubes

Country Status (2)

Country Link
BE (1) BE465966A (en)
FR (1) FR929004A (en)

Also Published As

Publication number Publication date
BE465966A (en)

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