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GB2082359B - Lamp-dimming system - Google Patents

Lamp-dimming system

Info

Publication number
GB2082359B
GB2082359B GB8125058A GB8125058A GB2082359B GB 2082359 B GB2082359 B GB 2082359B GB 8125058 A GB8125058 A GB 8125058A GB 8125058 A GB8125058 A GB 8125058A GB 2082359 B GB2082359 B GB 2082359B
Authority
GB
United Kingdom
Prior art keywords
lamp
dimming system
dimming
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
GB8125058A
Other versions
GB2082359A (en
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 Company PLC
Original Assignee
General Electric Company 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 Company PLC filed Critical General Electric Company PLC
Publication of GB2082359A publication Critical patent/GB2082359A/en
Application granted granted Critical
Publication of GB2082359B publication Critical patent/GB2082359B/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)
GB8125058A 1980-08-18 1981-08-17 Lamp-dimming system Expired GB2082359B (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
GB2082359A GB2082359A (en) 1982-03-03
GB2082359B true GB2082359B (en) 1984-02-22

Family

ID=10515520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8125058A Expired GB2082359B (en) 1980-08-18 1981-08-17 Lamp-dimming system

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
US5955847A (en) * 1994-06-10 1999-09-21 Beacon Light Products, Inc. Method for dimming a fluorescent lamp
US5652481A (en) * 1994-06-10 1997-07-29 Beacon Light Products, Inc. Automatic state tranition controller for 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
DE69602939T2 (en) * 1995-03-16 1999-12-02 Beacon Light Products, Inc. DIMMER SWITCHING AND METHOD FOR FLUORESCENT LAMPS
GB9509234D0 (en) * 1995-05-05 1995-06-28 Bailey Arthur R High frequency fluorescent lamp circuit with ballast protection
US5708330A (en) * 1995-09-19 1998-01-13 Beacon Light Products, Inc. Resonant voltage-multiplication, current-regulating and ignition circuit for a fluorescent lamp
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
DE3168901D1 (en) 1985-03-28
EP0046395B1 (en) 1985-02-13
GB2082359A (en) 1982-03-03
EP0046395A1 (en) 1982-02-24

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee