GB376208A - Improvements in luminous electric discharge tubes - Google Patents

Improvements in luminous electric discharge tubes

Info

Publication number
GB376208A
GB376208A GB6072/32A GB607232A GB376208A GB 376208 A GB376208 A GB 376208A GB 6072/32 A GB6072/32 A GB 6072/32A GB 607232 A GB607232 A GB 607232A GB 376208 A GB376208 A GB 376208A
Authority
GB
United Kingdom
Prior art keywords
electron
members
emitting substances
electric discharge
electrodes
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
GB6072/32A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB376208A publication Critical patent/GB376208A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/22—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps having an auxiliary starting electrode

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)

Abstract

376,208. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) Feb. 29, 1932, No. 6072. Convention date, April 16, 1931. [Class 39 (i).] Conducting members 9, 10 extend from the ends of the tube to within a short distance of each other, and are connected through a variable resistance 14. On applying the voltage to the main electrodes 7, glow discharges are formed between each electrode and the neighbouring conducting member, and the gas or vapour filling of the tube becomes quickly ionized. The electrodes may consist of sintered mixtures of refractory metals and electron-emitting substances and may be heated e.g. for 10 to 30 seconds by windings 6. The members 9, 10 are supported by glass beads 11 and wires 12 and may be covered with electron-emitting substances.
GB6072/32A 1931-04-16 1932-02-29 Improvements in luminous electric discharge tubes Expired GB376208A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE376208X 1931-04-16

Publications (1)

Publication Number Publication Date
GB376208A true GB376208A (en) 1932-07-07

Family

ID=6344212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6072/32A Expired GB376208A (en) 1931-04-16 1932-02-29 Improvements in luminous electric discharge tubes

Country Status (1)

Country Link
GB (1) GB376208A (en)

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