AU3073992A - Lamp brightness control circuit with ambient light compensation - Google Patents

Lamp brightness control circuit with ambient light compensation

Info

Publication number
AU3073992A
AU3073992A AU30739/92A AU3073992A AU3073992A AU 3073992 A AU3073992 A AU 3073992A AU 30739/92 A AU30739/92 A AU 30739/92A AU 3073992 A AU3073992 A AU 3073992A AU 3073992 A AU3073992 A AU 3073992A
Authority
AU
Australia
Prior art keywords
control circuit
ambient light
brightness control
light compensation
lamp brightness
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.)
Abandoned
Application number
AU30739/92A
Inventor
Fazle Quazi
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.)
Etta Industries Inc
Original Assignee
Etta Industries Inc
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 Etta Industries Inc filed Critical Etta Industries Inc
Publication of AU3073992A publication Critical patent/AU3073992A/en
Abandoned 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
    • H05B41/36—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
    • H05B41/3922—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations and measurement of the incident light
AU30739/92A 1991-11-08 1992-11-09 Lamp brightness control circuit with ambient light compensation Abandoned AU3073992A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US789268 1985-10-18
US78926891A 1991-11-08 1991-11-08

Publications (1)

Publication Number Publication Date
AU3073992A true AU3073992A (en) 1993-06-07

Family

ID=25147120

Family Applications (1)

Application Number Title Priority Date Filing Date
AU30739/92A Abandoned AU3073992A (en) 1991-11-08 1992-11-09 Lamp brightness control circuit with ambient light compensation

Country Status (3)

Country Link
AU (1) AU3073992A (en)
CA (1) CA2123226A1 (en)
WO (1) WO1993009649A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2072800B1 (en) * 1992-07-17 1996-02-16 Corral Enrique Gallar ARC INTENSITY REGULATOR IN FLUORESCENT TUBES.
FI94204C (en) * 1993-10-28 1995-07-25 Helvar Oy Control device for an electrical power consuming device
US5744913A (en) * 1994-03-25 1998-04-28 Pacific Scientific Company Fluorescent lamp apparatus with integral dimming control
US5596247A (en) * 1994-10-03 1997-01-21 Pacific Scientific Company Compact dimmable fluorescent lamps with central dimming ring
DE4440048A1 (en) * 1994-11-09 1996-05-15 Wila Leuchten Gmbh Fluorescent lamp control device e.g. for mixed light office work-place
DE19521934A1 (en) * 1995-06-07 1996-02-08 Wilhelm Wirtz Adjustable integral daylight-dependent control device for dimmable lights in buildings or rooms
US5811939A (en) * 1996-12-24 1998-09-22 Herniak; Edward Bi-level control system for lighting and other applications
DE29724657U1 (en) 1997-03-04 2002-09-05 TridonicAtco GmbH & Co. KG, Dornbirn Electronic ballast
CN108901110B (en) * 2018-08-03 2020-03-10 重庆交通大学 Energy-saving highway tunnel equivalent lighting control system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164686A (en) * 1968-02-13 1979-08-14 Ponder & Best Inc. Load current pulse control devices
US3681654A (en) * 1971-02-18 1972-08-01 Wagner Electric Corp Light-regulating power supply circuit for gaseous discharge lamp
JPS5429034Y2 (en) * 1975-05-01 1979-09-17
US4234820A (en) * 1979-04-06 1980-11-18 Controlled Environments Systems Light regulation system
US4982139A (en) * 1989-04-03 1991-01-01 At&T Bell Laboratories Method and apparatus for controlling light intensity

Also Published As

Publication number Publication date
WO1993009649A1 (en) 1993-05-13
CA2123226A1 (en) 1993-05-13

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