FR1061633A - Substances à pouvoir émissif élevé - Google Patents

Substances à pouvoir émissif élevé

Info

Publication number
FR1061633A
FR1061633A FR1061633DA FR1061633A FR 1061633 A FR1061633 A FR 1061633A FR 1061633D A FR1061633D A FR 1061633DA FR 1061633 A FR1061633 A FR 1061633A
Authority
FR
France
Prior art keywords
substances
high emissivity
emissivity
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR1061633A publication Critical patent/FR1061633A/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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H01J1/148—Solid thermionic cathodes characterised by the material with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material
FR1061633D 1951-03-28 1951-03-28 Substances à pouvoir émissif élevé Expired FR1061633A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1061633XA 1951-03-28 1951-03-28

Publications (1)

Publication Number Publication Date
FR1061633A true FR1061633A (fr) 1954-04-14

Family

ID=22309845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1061633D Expired FR1061633A (fr) 1951-03-28 1951-03-28 Substances à pouvoir émissif élevé

Country Status (1)

Country Link
FR (1) FR1061633A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402297A1 (fr) * 1977-09-02 1979-03-30 Balzers Hochvakuum Cathode a emission electronique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402297A1 (fr) * 1977-09-02 1979-03-30 Balzers Hochvakuum Cathode a emission electronique

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