FR416923A - Électrodes en terres rares pour tubes de geissler - Google Patents

Électrodes en terres rares pour tubes de geissler

Info

Publication number
FR416923A
FR416923A FR416923DA FR416923A FR 416923 A FR416923 A FR 416923A FR 416923D A FR416923D A FR 416923DA FR 416923 A FR416923 A FR 416923A
Authority
FR
France
Prior art keywords
rare earth
earth electrodes
geissler
tubes
geissler 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
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.)
BANQUE DU RADIUM
Original Assignee
BANQUE DU RADIUM
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 BANQUE DU RADIUM filed Critical BANQUE DU RADIUM
Application granted granted Critical
Publication of FR416923A publication Critical patent/FR416923A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
    • H01J61/0677—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode characterised by the electron emissive material
FR416923D 1910-06-09 1910-06-09 Électrodes en terres rares pour tubes de geissler Expired FR416923A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR416923T 1910-06-09

Publications (1)

Publication Number Publication Date
FR416923A true FR416923A (fr) 1910-11-02

Family

ID=1460377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR416923D Expired FR416923A (fr) 1910-06-09 1910-06-09 Électrodes en terres rares pour tubes de geissler

Country Status (1)

Country Link
FR (1) FR416923A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005639A1 (fr) * 1995-07-31 1997-02-13 Casio Computer Co., Ltd. Electrode emettrice d'electrons, procede pour la fabriquer et dispositif emettant de la lumiere comportant cette electrode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005639A1 (fr) * 1995-07-31 1997-02-13 Casio Computer Co., Ltd. Electrode emettrice d'electrons, procede pour la fabriquer et dispositif emettant de la lumiere comportant cette electrode

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