EP1037257A3 - Mercury-free metal halide-lamp - Google Patents

Mercury-free metal halide-lamp Download PDF

Info

Publication number
EP1037257A3
EP1037257A3 EP00302009A EP00302009A EP1037257A3 EP 1037257 A3 EP1037257 A3 EP 1037257A3 EP 00302009 A EP00302009 A EP 00302009A EP 00302009 A EP00302009 A EP 00302009A EP 1037257 A3 EP1037257 A3 EP 1037257A3
Authority
EP
European Patent Office
Prior art keywords
lamp
mercury
enclosed
trivalent
metal halide
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.)
Withdrawn
Application number
EP00302009A
Other languages
German (de)
French (fr)
Other versions
EP1037257A2 (en
Inventor
Kiyoshi Takahashi
Makoto Horiuchi
Takeshi Saito
Hideaki Kiryu
Mamoru Takeda
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP1037257A2 publication Critical patent/EP1037257A2/en
Publication of EP1037257A3 publication Critical patent/EP1037257A3/en
Withdrawn legal-status Critical Current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
    • 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
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal 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
    • 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
    • H01J61/34—Double-wall vessels or containers

Landscapes

  • Discharge Lamp (AREA)

Abstract

A lamp voltage corresponding to a lamp comprising mercury is obtained by comprising at least a rare gas, a trivalent of indium halide and a thallium iodide in an arc tube 1, and thereby a long life can be accomplished. In addition, when an enclosed amount of the trivalent of indium halide is approximately 90.0mg/cc or less per unit internal volume of the arc tube and the rare gas is xenon gas with an enclosed pressure of 2.5MPa or less, the luminous flux and the light colour most appropriate for a light source for motor vehicle headlights are obtained. Furthermore, when the thallium iodide is enclosed, the lamp voltage can be made even higher and the luminous flux can be increased.
EP00302009A 1999-03-11 2000-03-13 Mercury-free metal halide-lamp Withdrawn EP1037257A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6473299 1999-03-11
JP6473299 1999-03-11
JP21683099 1999-07-30
JP21683099 1999-07-30

Publications (2)

Publication Number Publication Date
EP1037257A2 EP1037257A2 (en) 2000-09-20
EP1037257A3 true EP1037257A3 (en) 2001-02-07

Family

ID=26405841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00302009A Withdrawn EP1037257A3 (en) 1999-03-11 2000-03-13 Mercury-free metal halide-lamp

Country Status (4)

Country Link
EP (1) EP1037257A3 (en)
KR (1) KR20010006751A (en)
CN (1) CN1284736A (en)
TW (1) TW446988B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6608444B2 (en) 2000-05-26 2003-08-19 Matsushita Electric Industrial Co., Ltd. Mercury-free high-intensity discharge lamp operating apparatus and mercury-free metal halide lamp
EP1288998A1 (en) * 2001-08-24 2003-03-05 Stanley Electric Co., Ltd. Mercury-free metal halide lamp, its contents and electric power control depending on resistance property
DE10242203A1 (en) 2002-09-10 2004-03-18 Philips Intellectual Property & Standards Gmbh High pressure discharge lamp for vehicle headlamps, comprises an inner bulb with a discharge chamber having an ionizable filling made from a noble gas, mercury and a metal halide mixture
WO2004055862A2 (en) * 2002-12-18 2004-07-01 Philips Intellectual Property & Standards Gmbh Mercury-free high-pressure gas discharge lamp
DE10307067B8 (en) * 2003-02-19 2005-01-13 Sli Lichtsysteme Gmbh Metal halide lamp
JP4086158B2 (en) 2003-12-22 2008-05-14 株式会社小糸製作所 Mercury-free arc tube for discharge lamp equipment
WO2008110967A1 (en) 2007-03-12 2008-09-18 Philips Intellectual Property & Standards Gmbh Low power discharge lamp with high efficacy
CN103177932A (en) * 2012-03-15 2013-06-26 上海劲吉节能环保科技发展有限公司 Energy-saving lighting system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259777A (en) * 1961-05-09 1966-07-05 Gen Electric Metal halide vapor discharge lamp with near molten tip electrodes
US3989970A (en) * 1974-12-19 1976-11-02 General Electric Company Metal halide high-intensity discharge lamp having improved restart capability
US5834895A (en) * 1990-10-25 1998-11-10 Fusion Lighting, Inc. Visible lamp including selenium
EP1011126A2 (en) * 1998-12-14 2000-06-21 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Metal halogen lamp
EP1032010A1 (en) * 1998-09-16 2000-08-30 Matsushita Electric Industrial Co., Ltd. Anhydrous silver halide lamp
EP1037258A1 (en) * 1998-02-20 2000-09-20 Matsushita Electric Industrial Co., Ltd. Mercury-free metal halide lamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259777A (en) * 1961-05-09 1966-07-05 Gen Electric Metal halide vapor discharge lamp with near molten tip electrodes
US3989970A (en) * 1974-12-19 1976-11-02 General Electric Company Metal halide high-intensity discharge lamp having improved restart capability
US5834895A (en) * 1990-10-25 1998-11-10 Fusion Lighting, Inc. Visible lamp including selenium
EP1037258A1 (en) * 1998-02-20 2000-09-20 Matsushita Electric Industrial Co., Ltd. Mercury-free metal halide lamp
EP1032010A1 (en) * 1998-09-16 2000-08-30 Matsushita Electric Industrial Co., Ltd. Anhydrous silver halide lamp
EP1011126A2 (en) * 1998-12-14 2000-06-21 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Metal halogen lamp

Also Published As

Publication number Publication date
TW446988B (en) 2001-07-21
KR20010006751A (en) 2001-01-26
EP1037257A2 (en) 2000-09-20
CN1284736A (en) 2001-02-21

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