WO2011121492A3 - Dimmable ceramic metal halide lamp - Google Patents

Dimmable ceramic metal halide lamp Download PDF

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Publication number
WO2011121492A3
WO2011121492A3 PCT/IB2011/051223 IB2011051223W WO2011121492A3 WO 2011121492 A3 WO2011121492 A3 WO 2011121492A3 IB 2011051223 W IB2011051223 W IB 2011051223W WO 2011121492 A3 WO2011121492 A3 WO 2011121492A3
Authority
WO
WIPO (PCT)
Prior art keywords
metal halide
halide
halide lamp
dimmable
discharge space
Prior art date
Application number
PCT/IB2011/051223
Other languages
French (fr)
Other versions
WO2011121492A2 (en
Inventor
Piet Antonis
Anna Wilhelmina Maria Wondergem-De Best
Peter Arend Seinen
Joris Hubertus Antonius Hagelaar
Wilhelmus Johannes Jacobus Welters
Marinus Cornelis Raas
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2011121492A2 publication Critical patent/WO2011121492A2/en
Publication of WO2011121492A3 publication Critical patent/WO2011121492A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/33—Special shape of cross-section, e.g. for producing cool spot
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers

Abstract

The invention relates to a metal halide lamp (1) comprising a ceramic discharge vessel, having an inner diameter, enclosing a discharge space which accommodate two electrodes arranged at an electrode distance, and which contains a noble gas and a salt filling, wherein (1) the salt filling comprises an alkali halide, a rare earth halide, and optionally thallium halide; (2) the discharge vessel has an aspect ratio, defined as the electrode distance divided by the inner diameter, of at maximum 4; and (3) the metal halide lamp has a wall load at full power, defined as the lamp power divided by the inner surface area of the discharge space, of at least 25 W/cm2. Especially, the discharge space contains 0.015-1.5 μg/mm3 alkali halide.
PCT/IB2011/051223 2010-04-02 2011-03-23 Metal halide lamp WO2011121492A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10159054 2010-04-02
EP10159054.5 2010-04-02

Publications (2)

Publication Number Publication Date
WO2011121492A2 WO2011121492A2 (en) 2011-10-06
WO2011121492A3 true WO2011121492A3 (en) 2011-12-29

Family

ID=44148872

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/051223 WO2011121492A2 (en) 2010-04-02 2011-03-23 Metal halide lamp

Country Status (1)

Country Link
WO (1) WO2011121492A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040189212A1 (en) * 2003-03-03 2004-09-30 Osram-Melco Toshiba Lighting Ltd. High-intensity discharge lamp and related lighting device
JP2007273377A (en) * 2006-03-31 2007-10-18 Matsushita Electric Ind Co Ltd Metal halide lamp and lighting system
US20100026183A1 (en) * 2006-12-20 2010-02-04 Koninklijke Philips Electronics N.V. Ceramic burner for ceramic metal halide lamp
US20100052532A1 (en) * 2007-04-20 2010-03-04 Koninklijke Philips Electronics N.V. Methal halide lamp comprising a shaped ceramic discharge vessel
US20100052531A1 (en) * 2007-04-20 2010-03-04 Koninklijke Philips Electronics N.V. Metal halide lamp comprising an ionisable salt filling

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8502509A (en) 1985-09-13 1987-04-01 Philips Nv HIGH PRESSURE MERCURY DISCHARGE LAMP.
EP0587238B1 (en) 1992-09-08 2000-07-19 Koninklijke Philips Electronics N.V. High-pressure discharge lamp
PL1728265T3 (en) 2004-03-08 2009-02-27 Koninl Philips Electronics Nv Metal halide lamp
WO2006046175A2 (en) 2004-10-26 2006-05-04 Koninklijke Philips Electronics N.V. Metal halide lamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040189212A1 (en) * 2003-03-03 2004-09-30 Osram-Melco Toshiba Lighting Ltd. High-intensity discharge lamp and related lighting device
JP2007273377A (en) * 2006-03-31 2007-10-18 Matsushita Electric Ind Co Ltd Metal halide lamp and lighting system
US20100026183A1 (en) * 2006-12-20 2010-02-04 Koninklijke Philips Electronics N.V. Ceramic burner for ceramic metal halide lamp
US20100052532A1 (en) * 2007-04-20 2010-03-04 Koninklijke Philips Electronics N.V. Methal halide lamp comprising a shaped ceramic discharge vessel
US20100052531A1 (en) * 2007-04-20 2010-03-04 Koninklijke Philips Electronics N.V. Metal halide lamp comprising an ionisable salt filling

Also Published As

Publication number Publication date
WO2011121492A2 (en) 2011-10-06

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