EP1198823A1 - Lampe a decharge gazeuse comprenant des electrodes auxiliaires d'allumage, notamment destinee a des phares d'automobile - Google Patents

Lampe a decharge gazeuse comprenant des electrodes auxiliaires d'allumage, notamment destinee a des phares d'automobile

Info

Publication number
EP1198823A1
EP1198823A1 EP00930982A EP00930982A EP1198823A1 EP 1198823 A1 EP1198823 A1 EP 1198823A1 EP 00930982 A EP00930982 A EP 00930982A EP 00930982 A EP00930982 A EP 00930982A EP 1198823 A1 EP1198823 A1 EP 1198823A1
Authority
EP
European Patent Office
Prior art keywords
discharge lamp
gas discharge
electrodes
cavity
discharge vessel
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Withdrawn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
EP00930982A
Other languages
German (de)
English (en)
Inventor
Ingo Gorille
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1198823A1 publication Critical patent/EP1198823A1/fr
Withdrawn legal-status Critical Current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
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel

Definitions

  • the invention relates to a gas discharge lamp, in particular for motor vehicle headlights according to the preamble of claim 1.
  • Such a gas discharge lamp is known from DE 196 10 387 AI.
  • This gas discharge lamp has a firing vessel with a cavity into which two electrodes of opposite polarity protrude, between which an arc is formed during operation of the gas discharge lamp.
  • a filling of gas and solids is arranged in the cavity.
  • At least one auxiliary electrode is also arranged in the cavity and is used to improve the ignition behavior of the gas discharge lamp.
  • the at least one auxiliary electrode is arranged in such a way that there is a shorter ignition distance than the burning distance between the two electrodes, which facilitates the ignition of the gas discharge lamp. In this case, it can prove difficult to ensure the required separation between the electrodes and the at least one auxiliary electrode and the separation of the burning path and the ignition path.
  • the gas discharge lamp according to the invention with the features according to claim 1 has the advantage that the arrangement of the at least one auxiliary electrode is possible in a simple manner on the outside of the burner vessel. Due to the high-frequency electrical voltage applied to the auxiliary electrode and the counter electrode, dielectrically impeded discharges, so-called silent discharges or, are created in the cavity of the burner vessel.
  • FIG. 1 shows a gas discharge lamp in a longitudinal section
  • FIG. 2 shows a section of the gas discharge lamp designated by II in FIG. 1 according to a first exemplary embodiment in an enlarged view
  • FIG. 3 shows section II of the gas discharge lamp according to a second exemplary embodiment. Description of the embodiments
  • a gas discharge lamp shown in FIGS. 1 to 3 is particularly suitable for use with
  • the gas discharge lamp has a base 10, shown in a highly simplified manner, which can be made in several parts and via which it can be used, for example, in an opening in a reflector
  • a burner 12 which has a discharge vessel 14, is connected to the base 10.
  • the discharge vessel 14 has a cavity 15, into which at least two electrodes 16, 18 protrude and which contains a filling which consists of an inert gas, preferably xenon, and mercury and optionally metal halides.
  • the discharge vessel 14 has tubular extensions 20, 21 adjoining the cavity 15, a feed line 22 to the electrode 16 being arranged in the extension 20 facing the base 10 and a connection 21 connected to the other electrode 18 in the extension 21 facing away from the base 10 Line 23 is arranged.
  • the discharge vessel 14 with the extensions 20, 21 consists of glass, preferably quartz glass.
  • a metal foil 24 is arranged between them, which preferably consists of molybdenum.
  • the burner 12 can also have a glass tube 26 which at least partially surrounds the discharge vessel 14 with its extensions 20, 21, which serves on the one hand to protect the discharge vessel 14 and on the other hand can be used to shield UV radiation which arises during operation of the gas discharge lamp.
  • a return line 28 running outside the burner 12 is connected to the line 23, which leads along the burner 12 to the base 10 and which is insulated 29 can be provided.
  • the supply line 22 to the electrode 16 and the return line 23 from the electrode 18 are each connected to a plug contact (not shown) on the base 10.
  • an electrical ballast device which has an ignition part and a control part.
  • the ignition part can be arranged separately from the gas discharge lamp or can be integrated in its base 10.
  • the ignition part serves the
  • a very high voltage is required here to ignite the gas discharge lamp.
  • the ignition part can be constructed, for example, on the principle of resonance ignition. When the gas discharge lamp is in operation, an arc is formed in the cavity 15 of the discharge vessel 14 between the electrodes 16, 18.
  • auxiliary electrodes 40, 42 are provided, which are arranged outside the discharge vessel 14 in the region of its cavity 15.
  • the auxiliary electrodes 40, 42 are provided, which are arranged outside the discharge vessel 14 in the region of its cavity 15.
  • Auxiliary electrodes 40, 42 are shown according to a first exemplary embodiment, in which they are formed by an electrically conductive coating on the outside of the discharge vessel 14 in the region of the cavity 15.
  • the coating for forming the auxiliary electrodes 40, 42 can, for example, consist of a metal with sufficient heat resistance and can be applied to the discharge vessel 14 by vapor deposition, painting or in another suitable manner.
  • the two auxiliary electrodes 40, 42 are arranged at least approximately diametrically opposite one another on the discharge vessel 14. More than two auxiliary electrodes 40, 42 can also be provided, two auxiliary electrodes being arranged opposite one another, for example.
  • the coatings forming the two auxiliary electrodes 40, 42 are separated from one another and each extend over part of the circumference of the discharge vessel 14 around the cavity 15.
  • a conductor track 44 running on the discharge vessel 14 can be connected to the auxiliary electrodes 40, 42, which lead to the base 10 of the gas discharge lamp.
  • the auxiliary electrodes 40, 42 can also be contacted in any other way, for example by means of cables connected to them.
  • Ballast device for example its ignition part, a high-frequency high voltage is applied to the auxiliary electrodes 40, 42, the two auxiliary electrodes 40, 42 having an opposite polarity. It can be provided that the auxiliary electrodes 40, 42 are supplied with high-frequency high voltage only for a certain period of time before the ignition and, if necessary, during the ignition of the gas discharge lamp, or alternatively, it can be provided that the auxiliary electrodes 40, 42 are constantly at a high frequency when the gas discharge lamp is switched off
  • High voltage can be supplied.
  • the high voltage can be more than 1 kV and the frequency can be more than 10 kHz.
  • auxiliary electrodes 40, 42 When the auxiliary electrodes 40, 42 are supplied with high-frequency high voltage, dielectrically disabled discharges, so-called silent discharges or barrier discharges, are generated in the cavity 15 of the discharge vessel 14 of the gas discharge lamp. As a result, the filling of the cavity 15, in particular the noble gas, energetically stimulated.
  • the gas discharge lamp is ignited by means of the ignition part of the ballast by applying high voltage to the electrodes 16, 18, the dielectric breakdown through the noble gas in the cavity 15 between the electrodes 16, 18 occurs faster and / or at a lower ignition voltage than without the auxiliary electrodes 40, 42 would be the case.
  • the ignition part of the ballast can be designed accordingly weaker, which offers cost advantages.
  • the overall design of the gas discharge lamp can also be made simpler in terms of insulation measures, since lower ignition voltages are required.
  • the gas discharge lamp can achieve a longer service life due to the reduced ignition load.
  • the auxiliary electrodes 40, 42 are arranged between the outside of the discharge vessel 14 and the glass tube 26, so that they cannot be touched and there is no danger from them.
  • the auxiliary electrodes 40, 42 could also be formed by a conductive coating on the inside of the glass tube 26 in the region of the glass tube 26 which surrounds the cavity 15 of the discharge vessel 14. The contacting of the auxiliary electrodes 40, 42 can then also take place via conductor tracks on the inside of the glass tube 26 or in any other way.
  • FIG. 3 shows a section of the gas discharge lamp according to a second exemplary embodiment.
  • the basic structure of the gas discharge lamp is the same as in the first exemplary embodiment, the design of the auxiliary electrodes being modified.
  • the auxiliary electrodes 40, 42 according to the second exemplary embodiment are separate parts on the outside of the discharge vessel 14 in the region of the cavity 15 thereof arranged.
  • the auxiliary electrodes 40, 42 are made of electrically conductive material, in particular metal, and their shape can be adapted to the outside of the discharge vessel 14 in the region of the cavity 15, that is to say, for example, they can be curved.
  • Auxiliary electrodes 40, 42 can be connected to the discharge vessel 14 by means of a clamp or snap connection, by gluing or in any other way.
  • the auxiliary electrodes 40, 42 can also be clamped between the discharge vessel 14 and the glass tube 26.
  • Electrical lines 46 are connected to the auxiliary electrodes 40, 42, which lead to the base 10 of the gas discharge lamp and serve to connect the auxiliary electrodes 40, 42 to the high-frequency high voltage as in the first exemplary embodiment.
  • auxiliary electrodes 40, 42 only one of the auxiliary electrodes 40, 42 is provided on the outside of the discharge vessel 14, which can be designed as explained above.
  • One of the electrodes 16, 18 protruding into the cavity 15 serves as the counter electrode to this one auxiliary electrode 40 or 42.
  • a high-frequency high voltage of opposite polarity is applied to the auxiliary electrode 40 or 42 and the counter electrode 16 or 18, so that an electrical field is formed between the auxiliary electrode 40 or 42 and the counter electrode 16 or 18, which penetrates the cavity 15 and facilitates the ignition of the gas discharge lamp.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

La présente invention concerne une lampe à décharge gazeuse présentant un brûleur qui comprend une enceinte de décharge (14) pourvue d'une cavité (15) qui est remplie de gaz et d'autres substances. Deux électrodes (16, 18) font saillie dans cette cavité (15). Un arc électrique est formé entre ces électrodes lors du fonctionnement de la lampe à décharge gazeuse. Deux électrodes auxiliaires (40, 42) de polarité opposée sont placées opposées l'une à l'autre dans la zone de la cavité (15), sur la face extérieure de l'enceinte de décharge (14). Ces électrodes auxiliaires (40, 42) sont formées par revêtement de la face extérieure de l'enceinte de décharge (14) avec un matériau électroconducteur. Avant et éventuellement pendant l'allumage de la lampe à décharge gazeuse, une haute tension à haute fréquence est appliquée aux électrodes auxiliaires (40, 42), ce qui facilite l'allumage de cette lampe à décharge gazeuse.
EP00930982A 2000-03-28 2000-03-28 Lampe a decharge gazeuse comprenant des electrodes auxiliaires d'allumage, notamment destinee a des phares d'automobile Withdrawn EP1198823A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2000/000910 WO2001073817A1 (fr) 2000-03-28 2000-03-28 Lampe a decharge gazeuse comprenant des electrodes auxiliaires d'allumage, notamment destinee a des phares d'automobile

Publications (1)

Publication Number Publication Date
EP1198823A1 true EP1198823A1 (fr) 2002-04-24

Family

ID=5647539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00930982A Withdrawn EP1198823A1 (fr) 2000-03-28 2000-03-28 Lampe a decharge gazeuse comprenant des electrodes auxiliaires d'allumage, notamment destinee a des phares d'automobile

Country Status (6)

Country Link
US (1) US6906462B1 (fr)
EP (1) EP1198823A1 (fr)
JP (1) JP2003529194A (fr)
KR (1) KR100802968B1 (fr)
AU (1) AU777640B2 (fr)
WO (1) WO2001073817A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143714C1 (de) * 2001-08-30 2002-12-19 Siemens Ag Lampe mit einem Lampenkörper und außen an diesem entlang geführter Leitungszuführung sowie Verfahren zu deren Herstellung
JP3938038B2 (ja) * 2002-12-18 2007-06-27 ウシオ電機株式会社 ショートアーク型放電ランプ
US7187131B2 (en) * 2004-12-14 2007-03-06 Osram Sylvania Inc. Discharge lamp with internal starting electrode
JP2007042369A (ja) * 2005-08-02 2007-02-15 Harison Toshiba Lighting Corp メタルハライドランプおよび照明装置
DE102006007218A1 (de) * 2006-02-15 2007-08-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Hochdruckentladungslampe
DE102006010803A1 (de) * 2006-03-07 2007-09-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Verfahren zur Herstellung einer Entladungslampe und eine nach einem derartigen Verfahren hergestellte Lampe
ATE489723T1 (de) * 2006-07-07 2010-12-15 Koninkl Philips Electronics Nv Gasentladungslampe
KR20100031752A (ko) 2007-06-21 2010-03-24 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 스타터 안테나를 포함하는 고압 방전 램프
WO2009030265A1 (fr) * 2007-08-29 2009-03-12 Osram Gesellschaft mit beschränkter Haftung Lampe à dispositif auxiliaire d'amorçage appliqué directement
US8063564B2 (en) * 2008-06-26 2011-11-22 Osram Sylvania Inc. Starting aid for HID lamp
US7982400B2 (en) * 2008-06-26 2011-07-19 Marijan Kostrun Starting aid for HID lamp
DE102008052464A1 (de) 2008-10-21 2010-04-22 Osram Gesellschaft mit beschränkter Haftung Entladungslampe
DE102009011833A1 (de) 2009-03-05 2010-09-09 Osram Gesellschaft mit beschränkter Haftung Entladungslampe
DE102009011834A1 (de) 2009-03-05 2010-09-09 Osram Gesellschaft mit beschränkter Haftung Entladungslampe
DE102010028222A1 (de) 2010-04-27 2011-10-27 Osram Gesellschaft mit beschränkter Haftung Verfahren zum Betreiben einer Gasentladungslampe und Gasentladungslampensystem
DE102011003141A1 (de) * 2011-01-26 2012-07-26 Osram Ag Hochdruckentladungslampe
WO2014088733A1 (fr) * 2012-12-06 2014-06-12 General Electric Company Aides à l'allumage à réseau de couche conductrice
CA2907169A1 (fr) * 2014-10-02 2016-04-02 Atlas Material Testing Technology Llc Alimentation sans allumage pour lampes au xenon dans un appareil de test d'evaporation acceleree
KR102451427B1 (ko) * 2020-07-14 2022-10-07 유니램 주식회사 삼중관형 엑시머 램프

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951112A (en) * 1931-09-16 1934-03-13 Gen Electric Gaseous electric discharge device
NL183973B (nl) * 1976-05-05 1988-10-03 Philips Nv Metaaldampontladingslamp.
US4316122A (en) * 1979-10-03 1982-02-16 Matsushita Electronics Corporation High pressure sodium vapor discharge lamp
DE2948996A1 (de) * 1979-12-05 1981-06-11 Heimann Gmbh, 6200 Wiesbaden Gasentladungs-blitzlichtroehre mit zuendelektrode
DE3010771A1 (de) * 1980-03-20 1981-09-24 Christiane 4900 Herford Kalhöfer Schlitten aus schlauchartigen huellen
DE3245923A1 (de) * 1982-12-11 1984-06-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zum starten und betrieb von hochdruck-gasentladungslampen
US4734612A (en) * 1985-07-15 1988-03-29 Kabushiki Kaisha Toshiba High pressure metal vapor discharge lamp
JPH03119696A (ja) * 1989-10-03 1991-05-22 Stanley Electric Co Ltd 冷陰極蛍光ランプの点灯方法
EP0477621B1 (fr) * 1990-09-07 1995-11-29 Matsushita Electric Industrial Co., Ltd. Dispositif d'éclairage avec lampe à décharge
JPH04272698A (ja) * 1991-02-27 1992-09-29 Matsushita Electric Ind Co Ltd 放電灯点灯装置
JPH0731498Y2 (ja) * 1991-06-27 1995-07-19 スタンレー電気株式会社 冷陰極管
DE4230814A1 (de) * 1992-09-15 1994-03-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe
DE69323026T2 (de) * 1992-10-08 1999-07-01 Koninkl Philips Electronics Nv Hochdruckentladungslampe
JPH06290754A (ja) * 1993-03-31 1994-10-18 Toshiba Lighting & Technol Corp 高圧放電灯および該放電灯を用いた半導体露光装置並びに映写装置
TW347547B (en) * 1994-05-17 1998-12-11 Toshiba Light Technic Kk Discharge lamp and illumination apparatus using the same
DE19517515A1 (de) * 1995-05-12 1996-11-14 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Entladungslampe und Verfahren zum Betreiben derartiger Entladungslampen
DE19610387A1 (de) * 1996-03-16 1997-09-18 Bosch Gmbh Robert Gasentladungslampe, insbesondere für Kraftfahrzeug-Scheinwerfer
DE19624243A1 (de) * 1996-06-18 1998-01-02 Bosch Gmbh Robert Entladungslampe
DE19644115A1 (de) * 1996-10-23 1998-04-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Betrieb einer Hochdruckentladungslampe sowie Beleuchtungssystem mit einer Hochdruckentladungslampe und einem Betriebsgerät für die Hochdruckentladungslampe
JP3224993B2 (ja) * 1996-11-05 2001-11-05 松下電器産業株式会社 高圧放電ランプ及びその製造方法
US5925988A (en) * 1998-03-31 1999-07-20 Rockwell Science Center, Inc. Backlight using transverse dynamic RF electric field and transparent conductors to provide an extended luminance range
US6515413B1 (en) * 1999-04-22 2003-02-04 Luminator Holding, Lp Infrared filter system for fluorescent lighting

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0173817A1 *

Also Published As

Publication number Publication date
WO2001073817A1 (fr) 2001-10-04
AU4909900A (en) 2001-10-08
AU777640B2 (en) 2004-10-28
KR20020019038A (ko) 2002-03-09
JP2003529194A (ja) 2003-09-30
KR100802968B1 (ko) 2008-02-14
US6906462B1 (en) 2005-06-14

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