EP1351278A3 - Metal halide lamp with ceramic discharge vessel - Google Patents

Metal halide lamp with ceramic discharge vessel Download PDF

Info

Publication number
EP1351278A3
EP1351278A3 EP03006301A EP03006301A EP1351278A3 EP 1351278 A3 EP1351278 A3 EP 1351278A3 EP 03006301 A EP03006301 A EP 03006301A EP 03006301 A EP03006301 A EP 03006301A EP 1351278 A3 EP1351278 A3 EP 1351278A3
Authority
EP
European Patent Office
Prior art keywords
discharge vessel
ceramic discharge
metal halide
halide lamp
ceramic
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
EP03006301A
Other languages
German (de)
French (fr)
Other versions
EP1351278B1 (en
EP1351278A2 (en
Inventor
Roland Hüttinger
Stefan Dr. Juengst
Ruediger Dr. Klam
Dieter Lang
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 EP1351278A2 publication Critical patent/EP1351278A2/en
Publication of EP1351278A3 publication Critical patent/EP1351278A3/en
Application granted granted Critical
Publication of EP1351278B1 publication Critical patent/EP1351278B1/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
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps

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 ceramic discharge vessel with ends sealed by ceramic stoppers with capillaries for electrical lead through and sealed with glass solder and consisting of inner (13) and outer (14) parts. The composite inner part has a core pin (18) to which a coil tube (20) is applied as at least a double layer with an effective diameter of the coil tube wire that is less than or equal to the core pin diameter and fulfills specified conditions.
EP03006301A 2002-04-03 2003-03-19 Metal halide lamp with ceramic discharge vessel Expired - Lifetime EP1351278B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10214777A DE10214777A1 (en) 2002-04-03 2002-04-03 Metal halide lamp with ceramic discharge tube
DE10214777 2002-04-03

Publications (3)

Publication Number Publication Date
EP1351278A2 EP1351278A2 (en) 2003-10-08
EP1351278A3 true EP1351278A3 (en) 2006-06-07
EP1351278B1 EP1351278B1 (en) 2007-05-09

Family

ID=27816122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03006301A Expired - Lifetime EP1351278B1 (en) 2002-04-03 2003-03-19 Metal halide lamp with ceramic discharge vessel

Country Status (7)

Country Link
US (1) US20030189406A1 (en)
EP (1) EP1351278B1 (en)
JP (1) JP4299039B2 (en)
CN (1) CN100426449C (en)
AT (1) ATE362195T1 (en)
CA (1) CA2424099A1 (en)
DE (2) DE10214777A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003220991A1 (en) * 2002-03-29 2003-10-13 Matsushita Electric Industrial Co., Ltd. Discharge lamp and method for producing the same, and lamp unit
EP1859468A2 (en) 2005-01-19 2007-11-28 Koninklijke Philips Electronics N.V. High-pressure discharge lamp
JP4929961B2 (en) * 2006-10-06 2012-05-09 ウシオ電機株式会社 High pressure mercury lamp
US8415883B2 (en) 2007-12-26 2013-04-09 General Electric Company Miniature ceramic metal halide lamp having a thin leg
US8089212B2 (en) * 2008-08-08 2012-01-03 General Electric Company Lower turn per inch (TPI) electrodes in ceramic metal halide (CMH) lamps
US20150084501A1 (en) * 2013-09-25 2015-03-26 General Electric Company Electrode design in a ceramic metal halide (cmh) lamp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0926703A2 (en) * 1997-12-26 1999-06-30 Matsushita Electronics Corporation Metal vapor discharge lamp
EP1037256A1 (en) * 1999-03-16 2000-09-20 Matsushita Electronics Corporation Metal halide lamp
DE10026802A1 (en) * 2000-05-31 2002-01-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Metal halide lamp with ceramic discharge vessel has capillary tube with two sections and diameter of inner section comes to, at most, 92% of diameter of outer section
EP1220296A1 (en) * 2000-12-28 2002-07-03 General Electric Company Thermally insulating lead wire for ceramic metal halide lamp electrodes

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742269A (en) * 1984-11-09 1988-05-03 Ngk Insulators, Ltd. Ceramic envelope device for high-pressure discharge lamp
DE3923589A1 (en) * 1989-07-17 1991-01-24 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh HIGH PRESSURE DISCHARGE LAMP
ES2150433T3 (en) * 1992-09-08 2000-12-01 Koninkl Philips Electronics Nv HIGH PRESSURE DISCHARGE LAMP.
DE4242123A1 (en) * 1992-12-14 1994-06-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High-pressure discharge lamp with a ceramic discharge tube
JP3638719B2 (en) * 1996-06-10 2005-04-13 ハリソン東芝ライティング株式会社 Ceramic discharge lamp, lamp device, lighting device, and liquid crystal projector
JPH10188901A (en) * 1996-12-26 1998-07-21 Ushio Inc Ceramic discharge lamp
JPH10284003A (en) * 1997-03-31 1998-10-23 Toshiba Lighting & Technol Corp High-pressure discharge lamp and illuminator
DE19727428A1 (en) * 1997-06-27 1999-01-07 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Metal halide lamp with ceramic discharge tube
DE19727430A1 (en) * 1997-06-27 1999-01-07 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Metal halide lamp with ceramic discharge tube
EP0991097B1 (en) * 1998-04-16 2009-11-25 Toshiba Lighting & Technology Corporation Electrical high-pressure discharge lamp and lighting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0926703A2 (en) * 1997-12-26 1999-06-30 Matsushita Electronics Corporation Metal vapor discharge lamp
EP1037256A1 (en) * 1999-03-16 2000-09-20 Matsushita Electronics Corporation Metal halide lamp
DE10026802A1 (en) * 2000-05-31 2002-01-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Metal halide lamp with ceramic discharge vessel has capillary tube with two sections and diameter of inner section comes to, at most, 92% of diameter of outer section
EP1220296A1 (en) * 2000-12-28 2002-07-03 General Electric Company Thermally insulating lead wire for ceramic metal halide lamp electrodes

Also Published As

Publication number Publication date
CN1450589A (en) 2003-10-22
EP1351278B1 (en) 2007-05-09
JP4299039B2 (en) 2009-07-22
JP2003297288A (en) 2003-10-17
ATE362195T1 (en) 2007-06-15
CA2424099A1 (en) 2003-10-03
US20030189406A1 (en) 2003-10-09
DE10214777A1 (en) 2003-10-16
CN100426449C (en) 2008-10-15
DE50307213D1 (en) 2007-06-21
EP1351278A2 (en) 2003-10-08

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