EP0887841A3 - Metal halide lamp with ceramic discharge vessel - Google Patents

Metal halide lamp with ceramic discharge vessel Download PDF

Info

Publication number
EP0887841A3
EP0887841A3 EP98110787A EP98110787A EP0887841A3 EP 0887841 A3 EP0887841 A3 EP 0887841A3 EP 98110787 A EP98110787 A EP 98110787A EP 98110787 A EP98110787 A EP 98110787A EP 0887841 A3 EP0887841 A3 EP 0887841A3
Authority
EP
European Patent Office
Prior art keywords
ceramics
metal halide
halide lamp
discharge vessel
ceramic discharge
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.)
Granted
Application number
EP98110787A
Other languages
German (de)
French (fr)
Other versions
EP0887841A2 (en
EP0887841B1 (en
Inventor
Roland Hüttinger
Stefan Dr. Jüngst
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0887841A2 publication Critical patent/EP0887841A2/en
Publication of EP0887841A3 publication Critical patent/EP0887841A3/en
Application granted granted Critical
Publication of EP0887841B1 publication Critical patent/EP0887841B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/366—Seals for leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/361—Seals between parts of vessel
    • H01J61/363—End-disc seals or plug seals
    • 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

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

The lamp has a ceramics gas discharge envelope of aluminium oxide, with 2 opposite ends fitted with ceramics end seals, each incorporating an elongate capillary tube, through which a respective 2-part conductor lead (9) is fitted. The inner part (14) of each conductor lead is provided by a pin of a halogenide-resistant metal, e.g. wolfram, with a maximum diameter of 0.4 mm, enclosed by a ceramics mantle (20, 21), the outer part (13) sealed to the end seal via a glass solder (18) over a length of at least 1 mm.
EP98110787A 1997-06-27 1998-06-12 Metal halide lamp with ceramic discharge vessel Expired - Lifetime EP0887841B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19727430A DE19727430A1 (en) 1997-06-27 1997-06-27 Metal halide lamp with ceramic discharge tube
DE19727430 1997-06-27

Publications (3)

Publication Number Publication Date
EP0887841A2 EP0887841A2 (en) 1998-12-30
EP0887841A3 true EP0887841A3 (en) 1999-10-06
EP0887841B1 EP0887841B1 (en) 2010-02-17

Family

ID=7833876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98110787A Expired - Lifetime EP0887841B1 (en) 1997-06-27 1998-06-12 Metal halide lamp with ceramic discharge vessel

Country Status (7)

Country Link
US (1) US6075314A (en)
EP (1) EP0887841B1 (en)
JP (1) JPH1173921A (en)
CN (1) CN1165956C (en)
AT (1) ATE458265T1 (en)
CA (1) CA2241698A1 (en)
DE (2) DE19727430A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6882109B2 (en) * 2000-03-08 2005-04-19 Japan Storage Battery Co., Ltd. Electric discharge lamp
DE60100556T2 (en) * 2000-05-30 2004-02-26 Japan Storage Battery Co. Ltd., Kyoto discharge lamp
US6621219B2 (en) * 2000-12-28 2003-09-16 General Electric Company Thermally insulating lead wire for ceramic metal halide electrodes
DE10291427B4 (en) * 2001-03-30 2009-07-09 Matsushita Electric Industrial Co. Ltd. Metal halide lamp for a motor vehicle headlight
EP1296356B1 (en) * 2001-09-13 2014-03-05 Ushiodenki Kabushiki Kaisha Super-high pressure discharge lamp of the short arc type
US6774566B2 (en) * 2001-09-19 2004-08-10 Toshiba Lighting & Technology Corporation High pressure discharge lamp and luminaire
JP2003132839A (en) 2001-10-30 2003-05-09 Matsushita Electric Ind Co Ltd Metal halide lamp
US6744206B2 (en) * 2002-02-25 2004-06-01 Matsushita Electric Industrial Co., Ltd. Metal halide lamp with reduced change in color temperature
CN1314074C (en) * 2002-03-20 2007-05-02 松下电器产业株式会社 Metal haloid lamp
DE10214777A1 (en) * 2002-04-03 2003-10-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Metal halide lamp with ceramic discharge tube
DE10256389A1 (en) * 2002-12-02 2004-06-09 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Metal halogen lamp has ceramic discharge piece with electrode system having molybdenum tungsten rod inside an outer niobium tube
US6774547B1 (en) 2003-06-26 2004-08-10 Osram Sylvania Inc. Discharge lamp having a fluted electrical feed-through
US6856079B1 (en) 2003-09-30 2005-02-15 Matsushita Electric Industrial Co., Ltd. Ceramic discharge lamp arc tube seal
WO2005083744A2 (en) * 2004-02-23 2005-09-09 Patent-Treuhand- Gesellschaft Für Elektrische Glühlampen Mbh Electrode system for a high-pressure discharge lamp
US20060108928A1 (en) * 2004-11-24 2006-05-25 Patent-Treuhand-Gesellschaft Fur Elektrisch Gluhlampen Mbh Process for producing a supply conductor for a lamp, and supply conductor for a lamp, as well as lamp having a supply conductor
US7362053B2 (en) * 2005-01-31 2008-04-22 Osram Sylvania Inc. Ceramic discharge vessel having aluminum oxynitride seal region
US7823353B2 (en) * 2005-11-22 2010-11-02 Masonite Corporation Door, method of making door, and stack of doors
US7511429B2 (en) * 2006-02-15 2009-03-31 Panasonic Corporation High intensity discharge lamp having an improved electrode arrangement
DE202007007688U1 (en) * 2007-05-31 2008-07-10 Osram Gesellschaft mit beschränkter Haftung High pressure discharge lamp
DE102007046899B3 (en) * 2007-09-28 2009-02-12 W.C. Heraeus Gmbh Halogen metal vapor lamp comprises a ceramic housing and a current feed-through arranged in the ceramic housing
US8415883B2 (en) * 2007-12-26 2013-04-09 General Electric Company Miniature ceramic metal halide lamp having a thin leg
EP2081214A1 (en) * 2008-01-18 2009-07-22 Flowil International Lighting (HOLDING) B.V. Electrode unit high pressure discharge lamp
WO2013016645A1 (en) 2011-07-28 2013-01-31 3M Innovative Properties Company Cartridge for dispensing a dental substance and method of assembling the cartridge

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4780646A (en) * 1986-10-23 1988-10-25 Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh High pressure discharge lamp structure
EP0215524B1 (en) * 1985-09-13 1989-07-26 Koninklijke Philips Electronics N.V. High-pressure mercury vapour discharge lamp
EP0587238A1 (en) * 1992-09-08 1994-03-16 Koninklijke Philips Electronics N.V. High-pressure discharge lamp
US5363007A (en) * 1991-09-30 1994-11-08 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Low-power, high-pressure discharge lamp, particularly for general service illumination use
WO1995028732A1 (en) * 1994-04-13 1995-10-26 Philips Electronics N.V. High-pressure metal halide lamp

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0115654B1 (en) * 1982-12-30 1987-09-09 Koninklijke Philips Electronics N.V. High-pressure sodium discharge lamp
ES2150433T3 (en) * 1992-09-08 2000-12-01 Koninkl Philips Electronics Nv HIGH PRESSURE DISCHARGE LAMP.
DE4242122A1 (en) * 1992-12-14 1994-06-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Process for producing a vacuum-tight seal between a ceramic and a metallic partner, in particular for use in the manufacture of a discharge vessel for a lamp, and discharge vessels and lamps produced therewith
US5430353A (en) * 1993-07-22 1995-07-04 General Electric Company Lamp inlead assembly having a formed foil arrangement
DE4327535A1 (en) * 1993-08-16 1995-02-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High-pressure discharge lamp with ceramic discharge tube

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215524B1 (en) * 1985-09-13 1989-07-26 Koninklijke Philips Electronics N.V. High-pressure mercury vapour discharge lamp
US4780646A (en) * 1986-10-23 1988-10-25 Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh High pressure discharge lamp structure
US5363007A (en) * 1991-09-30 1994-11-08 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Low-power, high-pressure discharge lamp, particularly for general service illumination use
EP0587238A1 (en) * 1992-09-08 1994-03-16 Koninklijke Philips Electronics N.V. High-pressure discharge lamp
WO1995028732A1 (en) * 1994-04-13 1995-10-26 Philips Electronics N.V. High-pressure metal halide lamp

Also Published As

Publication number Publication date
US6075314A (en) 2000-06-13
EP0887841A2 (en) 1998-12-30
CA2241698A1 (en) 1998-12-27
CN1204138A (en) 1999-01-06
ATE458265T1 (en) 2010-03-15
DE19727430A1 (en) 1999-01-07
JPH1173921A (en) 1999-03-16
EP0887841B1 (en) 2010-02-17
CN1165956C (en) 2004-09-08
DE59814435D1 (en) 2010-04-01

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