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WO2004055862A3 - Mercury-free high-pressure gas discharge lamp - Google Patents

Mercury-free high-pressure gas discharge lamp Download PDF

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Publication number
WO2004055862A3
WO2004055862A3 PCT/IB2003/005650 IB0305650W WO2004055862A3 WO 2004055862 A3 WO2004055862 A3 WO 2004055862A3 IB 0305650 W IB0305650 W IB 0305650W WO 2004055862 A3 WO2004055862 A3 WO 2004055862A3
Authority
WO
WIPO (PCT)
Prior art keywords
mercury
discharge
arc
disadvantages
pressure gas
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.)
Ceased
Application number
PCT/IB2003/005650
Other languages
French (fr)
Other versions
WO2004055862A2 (en
Inventor
Pieter Postma
Manfred Peterek
Michael Haacke
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Intellectual Property and Standards GmbH
Koninklijke Philips Electronics NV
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 Philips Intellectual Property and Standards GmbH, Koninklijke Philips Electronics NV filed Critical Philips Intellectual Property and Standards GmbH
Priority to AU2003283695A priority Critical patent/AU2003283695A1/en
Publication of WO2004055862A2 publication Critical patent/WO2004055862A2/en
Publication of WO2004055862A3 publication Critical patent/WO2004055862A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/16—Selection of substances for gas fillings; Specified operating pressure or temperature having helium, argon, neon, krypton, or xenon as the principle constituent
    • 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

Landscapes

  • Discharge Lamp (AREA)

Abstract

A high-pressure gas discharge lamp (HID [high intensity discharge]) lamp) is described which is free from mercury and which is suitable in particular for use in automobile technology. The metal halides conventionally used as voltage gradient formers in mercury-free discharge lamps have various disadvantages as their proportional quantity in the gas filling increases, which disadvantages manifest themselves in particular in the form of an intensified arc constriction and arc curvature, and possibly also of a reduced diffuseness of the discharge arc. All these disadvantages are at least substantially avoided in that the use metal halides as voltage gradient formers is dispensed with, and that instead xenon is introduced into the gas filling at an increased pressure which excites an arc discharge.
PCT/IB2003/005650 2002-12-18 2003-12-03 Mercury-free high-pressure gas discharge lamp Ceased WO2004055862A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003283695A AU2003283695A1 (en) 2002-12-18 2003-12-03 Mercury-free high-pressure gas discharge lamp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02102812.1 2002-12-18
EP02102812 2002-12-18

Publications (2)

Publication Number Publication Date
WO2004055862A2 WO2004055862A2 (en) 2004-07-01
WO2004055862A3 true WO2004055862A3 (en) 2004-09-16

Family

ID=32524086

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/005650 Ceased WO2004055862A2 (en) 2002-12-18 2003-12-03 Mercury-free high-pressure gas discharge lamp

Country Status (2)

Country Link
AU (1) AU2003283695A1 (en)
WO (1) WO2004055862A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4618793B2 (en) * 2005-05-31 2011-01-26 株式会社小糸製作所 Mercury-free arc tube for discharge bulb
WO2009115116A1 (en) * 2008-03-19 2009-09-24 Osram Gesellschaft mit beschränkter Haftung Gas discharge lamp and method for the production of a gas discharge lamp

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005346A (en) * 1996-04-08 1999-12-21 Ilc Technology, Inc. Trichrominance metal halide lamp for use with twisted nematic subtractive color light valves
EP1037257A2 (en) * 1999-03-11 2000-09-20 Matsushita Electric Industrial Co., Ltd. Mercury-free metal halide-lamp
EP1037258A1 (en) * 1998-02-20 2000-09-20 Matsushita Electric Industrial Co., Ltd. Mercury-free metal halide lamp
EP1058289A2 (en) * 1999-04-14 2000-12-06 Osram Sylvania Inc. Mercury-free metal halide arc vessel and lamp
EP1063681A2 (en) * 1999-06-25 2000-12-27 Stanley Electric Co., Ltd. Metal halide discharge lamps
WO2002078051A1 (en) * 2001-03-23 2002-10-03 Koninklijke Philips Electronics N.V. High-pressure gas discharge lamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005346A (en) * 1996-04-08 1999-12-21 Ilc Technology, Inc. Trichrominance metal halide lamp for use with twisted nematic subtractive color light valves
EP1037258A1 (en) * 1998-02-20 2000-09-20 Matsushita Electric Industrial Co., Ltd. Mercury-free metal halide lamp
EP1037257A2 (en) * 1999-03-11 2000-09-20 Matsushita Electric Industrial Co., Ltd. Mercury-free metal halide-lamp
EP1058289A2 (en) * 1999-04-14 2000-12-06 Osram Sylvania Inc. Mercury-free metal halide arc vessel and lamp
EP1063681A2 (en) * 1999-06-25 2000-12-27 Stanley Electric Co., Ltd. Metal halide discharge lamps
WO2002078051A1 (en) * 2001-03-23 2002-10-03 Koninklijke Philips Electronics N.V. High-pressure gas discharge lamp

Also Published As

Publication number Publication date
WO2004055862A2 (en) 2004-07-01
AU2003283695A1 (en) 2004-07-09

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