GB412024A - Improvements in electric discharge tubes chiefly for television and luminescent relays - Google Patents

Improvements in electric discharge tubes chiefly for television and luminescent relays

Info

Publication number
GB412024A
GB412024A GB13002/33A GB1300233A GB412024A GB 412024 A GB412024 A GB 412024A GB 13002/33 A GB13002/33 A GB 13002/33A GB 1300233 A GB1300233 A GB 1300233A GB 412024 A GB412024 A GB 412024A
Authority
GB
United Kingdom
Prior art keywords
luminescent
relays
cathode
electric discharge
discharge
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
GB13002/33A
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.)
LAMPES FOTOS SOC D
Original Assignee
LAMPES FOTOS SOC D
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 LAMPES FOTOS SOC D filed Critical LAMPES FOTOS SOC D
Publication of GB412024A publication Critical patent/GB412024A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/30—Igniting arrangements

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

412,024. Discharge apparatus. SOC. DES LAMPES FOTOS, 41, Rue Cantagrel, Paris. May 4, 1933, No. 13002. Convention date, May 4, 1932. [Class 39 (i).] An electric discharge tube, particularly for uses where the potential changes rapidly and often, such as television receivers or luminescent relays comprises a rectilinear nickel anode 2, and a nickel cathode plate 5 of large area, a small portion 8 of the cathode surface being coated with a substance having a much lower extinction potential than the material of the cathode plate in order to maintain a residual discharge which restarts the main discharge after extinction. A suitable coating comprises an alkaline or alkaline earth metal, oxidized if desired, or deposited from an azide solution. An insulating coat 7, for example of mica or enamel, covers one side of the cathode.
GB13002/33A 1932-05-04 1933-05-04 Improvements in electric discharge tubes chiefly for television and luminescent relays Expired GB412024A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR736616T 1932-05-04

Publications (1)

Publication Number Publication Date
GB412024A true GB412024A (en) 1934-06-21

Family

ID=9131316

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13002/33A Expired GB412024A (en) 1932-05-04 1933-05-04 Improvements in electric discharge tubes chiefly for television and luminescent relays

Country Status (3)

Country Link
BE (1) BE396077A (en)
FR (1) FR736616A (en)
GB (1) GB412024A (en)

Also Published As

Publication number Publication date
BE396077A (en)
FR736616A (en) 1932-11-25

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