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

Lamp brightness control circuit with ambient light compensation

Info

Publication number: AU3073992A
Authority: AU; Australia
Prior art keywords: control circuit; ambient light; brightness control; light compensation; lamp brightness
Prior art date: 1991-11-08
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.)

1991-11-08

Filing date

1992-11-09

Publication date

1993-06-07

1992-11-09 Application filed by Etta Industries Inc filed Critical Etta Industries Inc

1993-06-07 Publication of AU3073992A publication Critical patent/AU3073992A/en

Status Abandoned legal-status Critical Current

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
US78926891A	1991-11-08	1991-11-08
US789268		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

1992
- 1992-11-09 WO PCT/US1992/009746 patent/WO1993009649A1/en not_active Ceased
- 1992-11-09 AU AU30739/92A patent/AU3073992A/en not_active Abandoned
- 1992-11-09 CA CA 2123226 patent/CA2123226A1/en not_active Abandoned

Also Published As

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

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