GB623516A - Lighting system embodying low pressure electric discharge lamps - Google Patents

Lighting system embodying low pressure electric discharge lamps

Info

Publication number
GB623516A
GB623516A GB1249447A GB1249447A GB623516A GB 623516 A GB623516 A GB 623516A GB 1249447 A GB1249447 A GB 1249447A GB 1249447 A GB1249447 A GB 1249447A GB 623516 A GB623516 A GB 623516A
Authority
GB
United Kingdom
Prior art keywords
discharge lamps
low pressure
lighting system
electric discharge
system embodying
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
GB1249447A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB1249447A priority Critical patent/GB623516A/en
Publication of GB623516A publication Critical patent/GB623516A/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
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

623,516. Supply systems for discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., HIBBERD, R. G., and McALLISTER, L. E. May 8, 1947, No. 12494. [Class 38 (iv)] A discharge lamp 7 with preheated electrodes 5, 6 is operated from a high-frequency source 3, e.g. 125 kilocycles, through a trans - former 1, a condenser 8 being connected in series and between the electrodes so that the secondary circuit is in resonance until the lamp strikes. The primary winding may also be in resonance with a condenser 9.
GB1249447A 1947-05-08 1947-05-08 Lighting system embodying low pressure electric discharge lamps Expired GB623516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1249447A GB623516A (en) 1947-05-08 1947-05-08 Lighting system embodying low pressure electric discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1249447A GB623516A (en) 1947-05-08 1947-05-08 Lighting system embodying low pressure electric discharge lamps

Publications (1)

Publication Number Publication Date
GB623516A true GB623516A (en) 1949-05-18

Family

ID=10005631

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1249447A Expired GB623516A (en) 1947-05-08 1947-05-08 Lighting system embodying low pressure electric discharge lamps

Country Status (1)

Country Link
GB (1) GB623516A (en)

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