AU2002368347A1 - Improved lamp colour control for dimmed high intensity discharge lamps - Google Patents

Improved lamp colour control for dimmed high intensity discharge lamps

Info

Publication number
AU2002368347A1
AU2002368347A1 AU2002368347A AU2002368347A AU2002368347A1 AU 2002368347 A1 AU2002368347 A1 AU 2002368347A1 AU 2002368347 A AU2002368347 A AU 2002368347A AU 2002368347 A AU2002368347 A AU 2002368347A AU 2002368347 A1 AU2002368347 A1 AU 2002368347A1
Authority
AU
Australia
Prior art keywords
high intensity
discharge lamps
intensity discharge
improved lamp
colour control
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
AU2002368347A
Inventor
Simon Richard Greenwood
Stephen Soar
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU2002368347A1 publication Critical patent/AU2002368347A1/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
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
    • H05B41/3928—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation for high-pressure lamps, e.g. high-intensity discharge lamps, high-pressure mercury or sodium lamps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
AU2002368347A 2002-11-12 2002-11-12 Improved lamp colour control for dimmed high intensity discharge lamps Abandoned AU2002368347A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2002/005157 WO2004045257A1 (en) 2002-11-12 2002-11-12 Improved lamp colour control for dimmed high intensity discharge lamps

Publications (1)

Publication Number Publication Date
AU2002368347A1 true AU2002368347A1 (en) 2004-06-03

Family

ID=32310083

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002368347A Abandoned AU2002368347A1 (en) 2002-11-12 2002-11-12 Improved lamp colour control for dimmed high intensity discharge lamps

Country Status (2)

Country Link
AU (1) AU2002368347A1 (en)
WO (1) WO2004045257A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060017398A1 (en) * 2004-06-23 2006-01-26 Sanyo Tecnica Co., Ltd. High-intensity discharge lamp lighting apparatus and lighting driving method therefor
CN101213884B (en) * 2005-06-30 2012-06-06 皇家飞利浦电子股份有限公司 Method of driving a discharge lamp in a projection system, and driving unit
US7928669B2 (en) 2008-02-08 2011-04-19 General Electric Company Color control of a discharge lamp during dimming

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636901A1 (en) * 1986-10-30 1988-05-05 Philips Patentverwaltung Method for operating a high-pressure sodium-vapour discharge lamp
DD270406A1 (en) * 1988-03-25 1989-07-26 Narva Rosa Luxemburg K Wall-stabilized metal vapor discharge lamp
EP0439863B1 (en) * 1990-01-29 1995-03-15 Koninklijke Philips Electronics N.V. Circuit arrangement
EP0439864B1 (en) * 1990-01-29 1995-03-29 Koninklijke Philips Electronics N.V. Circuit arrangement
US5262701A (en) * 1991-03-15 1993-11-16 U.S. Philips Corporation Circuit arrangement for operating a high pressure sodium lamp
DE4301256A1 (en) * 1993-01-19 1994-07-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Method and circuit arrangement for setting different color temperatures in a sodium high-pressure discharge lamp
WO1999008492A1 (en) * 1997-08-05 1999-02-18 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Method for operating a direct current metal halogen arc lamp and circuit pertaining thereto
JP2001006611A (en) * 1999-06-14 2001-01-12 Matsushita Electric Works Ltd High-brightness discharge lamp

Also Published As

Publication number Publication date
WO2004045257A1 (en) 2004-05-27

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase