GB828784A - Improvements in or relating to circuit arrangements for operating electric lamps - Google Patents

Improvements in or relating to circuit arrangements for operating electric lamps

Info

Publication number
GB828784A
GB828784A GB2729657A GB2729657A GB828784A GB 828784 A GB828784 A GB 828784A GB 2729657 A GB2729657 A GB 2729657A GB 2729657 A GB2729657 A GB 2729657A GB 828784 A GB828784 A GB 828784A
Authority
GB
United Kingdom
Prior art keywords
relating
circuit arrangements
electric lamps
operating electric
aug
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
GB2729657A
Inventor
Donald Dunthorne
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
Priority to GB2729657A priority Critical patent/GB828784A/en
Publication of GB828784A publication Critical patent/GB828784A/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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices
    • H05B39/083—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices by the variation-rate of light intensity

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

828,784. Dimming lamps. GENERAL ELECTRIC. CO. Ltd. Aug. 13, 1958 [Aug. 29, 1957], No. 27296/57. Drawings to Specification. Class 38 (4). The subject-matter is the same as that of Specification 828,783, but the claims differ.
GB2729657A 1957-08-29 1957-08-29 Improvements in or relating to circuit arrangements for operating electric lamps Expired GB828784A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2729657A GB828784A (en) 1957-08-29 1957-08-29 Improvements in or relating to circuit arrangements for operating electric lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2729657A GB828784A (en) 1957-08-29 1957-08-29 Improvements in or relating to circuit arrangements for operating electric lamps

Publications (1)

Publication Number Publication Date
GB828784A true GB828784A (en) 1960-02-24

Family

ID=10257274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2729657A Expired GB828784A (en) 1957-08-29 1957-08-29 Improvements in or relating to circuit arrangements for operating electric lamps

Country Status (1)

Country Link
GB (1) GB828784A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057751A (en) * 1975-10-14 1977-11-08 Cbs Inc. Controlled dimmer lighting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057751A (en) * 1975-10-14 1977-11-08 Cbs Inc. Controlled dimmer lighting system

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