FR920273A - électrode émettrice d'électrons - Google Patents

électrode émettrice d'électrons

Info

Publication number
FR920273A
FR920273A FR920273DA FR920273A FR 920273 A FR920273 A FR 920273A FR 920273D A FR920273D A FR 920273DA FR 920273 A FR920273 A FR 920273A
Authority
FR
France
Prior art keywords
electron emitting
emitting electrode
electrode
electron
emitting
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
English (en)
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 FR920273A publication Critical patent/FR920273A/fr
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
FR920273D 1946-01-17 1946-01-17 électrode émettrice d'électrons Expired FR920273A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR920273T 1946-01-17

Publications (1)

Publication Number Publication Date
FR920273A true FR920273A (fr) 1947-04-02

Family

ID=9427452

Family Applications (1)

Application Number Title Priority Date Filing Date
FR920273D Expired FR920273A (fr) 1946-01-17 1946-01-17 électrode émettrice d'électrons

Country Status (1)

Country Link
FR (1) FR920273A (fr)

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