DE3168901D1 - Dimming system for electric discharge lamps - Google Patents

Dimming system for electric discharge lamps

Info

Publication number
DE3168901D1
DE3168901D1 DE8181303732T DE3168901T DE3168901D1 DE 3168901 D1 DE3168901 D1 DE 3168901D1 DE 8181303732 T DE8181303732 T DE 8181303732T DE 3168901 T DE3168901 T DE 3168901T DE 3168901 D1 DE3168901 D1 DE 3168901D1
Authority
DE
Germany
Prior art keywords
electric discharge
discharge lamps
dimming system
dimming
lamps
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
DE8181303732T
Other languages
German (de)
Inventor
Peter David Parker
John Britton
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.)
Ledvance Ltd
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
Application granted granted Critical
Publication of DE3168901D1 publication Critical patent/DE3168901D1/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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices
    • H05B41/044—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes
    • H05B41/046—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes using controlled semiconductor devices
    • 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3924—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by phase control, e.g. using a triac

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
DE8181303732T 1980-08-18 1981-08-17 Dimming system for electric discharge lamps Expired DE3168901D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8026864 1980-08-18

Publications (1)

Publication Number Publication Date
DE3168901D1 true DE3168901D1 (en) 1985-03-28

Family

ID=10515520

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181303732T Expired DE3168901D1 (en) 1980-08-18 1981-08-17 Dimming system for electric discharge lamps

Country Status (3)

Country Link
EP (1) EP0046395B1 (en)
DE (1) DE3168901D1 (en)
GB (1) GB2082359B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155708B (en) * 1984-02-24 1988-02-10 Colin Robert Francis Electrical devices
GB2174222B (en) * 1985-04-27 1988-09-21 Peter Stanley Phillips Remote operation of an electrical light switch
DE4013360A1 (en) * 1990-04-26 1991-11-14 Diehl Gmbh & Co CIRCUIT ARRANGEMENT FOR THE OPERATION OF A FLUORESCENT LAMP
US5652481A (en) * 1994-06-10 1997-07-29 Beacon Light Products, Inc. Automatic state tranition controller for a fluorescent lamp
US5955847A (en) * 1994-06-10 1999-09-21 Beacon Light Products, Inc. Method for dimming a fluorescent lamp
US5757145A (en) * 1994-06-10 1998-05-26 Beacon Light Products, Inc. Dimming control system and method for a fluorescent lamp
DE4421736C2 (en) * 1994-06-22 1998-06-18 Wolfgang Nuetzel Controllable lighting system
DE19502772C2 (en) * 1995-01-30 2002-02-28 Walter Holzer Electronic ballast for fluorescent lamps
EP0824850B1 (en) * 1995-03-16 1999-06-16 Beacon Light Products, Inc. Dimming controller and method for a fluorescent lamp
GB9509234D0 (en) * 1995-05-05 1995-06-28 Bailey Arthur R High frequency fluorescent lamp circuit with ballast protection
US5631523A (en) * 1995-09-19 1997-05-20 Beacon Light Products, Inc. Method of regulating lamp current through a fluorescent lamp by pulse energizing a driving supply
US5736817A (en) * 1995-09-19 1998-04-07 Beacon Light Products, Inc. Preheating and starting circuit and method for a fluorescent lamp
US5739640A (en) * 1995-12-08 1998-04-14 Beacon Light Products, Inc. Low line voltage detection control module and method for a fluorescent lamp
DE19632282A1 (en) * 1996-08-09 1998-02-19 Holzer Walter Prof Dr H C Ing Process and device for controlling the brightness of fluorescent lamps
DE20380220U1 (en) * 2002-03-20 2005-03-10 Hass, Gernot Headlamp with control device
US20110293830A1 (en) 2010-02-25 2011-12-01 Timo Hatanpaa Precursors and methods for atomic layer deposition of transition metal oxides

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1500891A (en) * 1974-07-18 1978-02-15 Gen Electric Co Ltd Systems for transmitting information in an alternating current electricity supply system
US3970893A (en) * 1974-11-27 1976-07-20 Strand Century Incorporated Apparatus for controlling the intensity of lights
CA1112295A (en) * 1978-03-31 1981-11-10 Nabil K. Takla Programmable lighting control system

Also Published As

Publication number Publication date
GB2082359A (en) 1982-03-03
GB2082359B (en) 1984-02-22
EP0046395B1 (en) 1985-02-13
EP0046395A1 (en) 1982-02-24

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: OSRAM-GEC LTD., WEMBLEY, MIDDLESEX, GB

8339 Ceased/non-payment of the annual fee