EP1647165A1 - Procede pour faire fonctionner une lampe a decharge haute pression - Google Patents

Procede pour faire fonctionner une lampe a decharge haute pression

Info

Publication number
EP1647165A1
EP1647165A1 EP04762413A EP04762413A EP1647165A1 EP 1647165 A1 EP1647165 A1 EP 1647165A1 EP 04762413 A EP04762413 A EP 04762413A EP 04762413 A EP04762413 A EP 04762413A EP 1647165 A1 EP1647165 A1 EP 1647165A1
Authority
EP
European Patent Office
Prior art keywords
lamp
frequency
pressure discharge
operating method
discharge lamp
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
EP04762413A
Other languages
German (de)
English (en)
Inventor
Klaus Günther
Thomas Hartmann
Günter HIRSCHMANN
Bernhard Siessegger
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 EP1647165A1 publication Critical patent/EP1647165A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/288—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2928—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/288—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Definitions

  • the invention relates to an operating method for a high-pressure discharge lamp according to the preamble of patent claim 1.
  • the published patent application EP 0 708 579 AI discloses an operating method for a high-pressure discharge lamp, in which the lamp is operated with a frequency-modulated alternating current.
  • a metal halide high-pressure discharge lamp is operated with a frequency-modulated alternating current in order to excite acoustic resonances in a controlled manner to straighten the discharge arc, which is caused by convection.
  • Patent specification EP 0 626 799 B1 describes the operation of a high-pressure discharge lamp with an alternating current, the frequency of which is tuned to a radial acoustic resonance in order to straighten the discharge arc which is curved due to convection.
  • the frequency modulation of the lamp current in accordance with the above-cited published documents requires a considerable amount of circuitry.
  • the operation of the high-pressure discharge lamp with an alternating current, the frequency of which is matched to a radial acoustic resonance, is also complex because, because of the manufacturing tolerances, a frequency tuning on the operating device is required for each lamp.
  • the operation of the high-pressure discharge lamp with a rectangular current has the disadvantage that at high lamp currents, such as those are required for the operation of mercury-free metal halide high-pressure discharge lamps, not inconsiderable power loss occurs in the transistor switches and a comparatively high amount of radio interference is required due to broadband interference signals that are caused by the lamp.
  • the operating method according to the invention is suitable for high-pressure discharge lamps, the discharge vessel of which surrounds a discharge space of essentially cylindrical geometry and in which electrodes and an ionizable filling for producing a light-emitting gas discharge are arranged, the aspect ratio, that is to say the quotient of the electrode spacing and inner diameter of the discharge vessel, preferably greater than 0.86 and particularly preferably even greater than 2.
  • a discharge space of essentially cylindrical geometry is understood to mean that the inner wall of the discharge vessel is cylindrical, at least in the region of the gas discharge. According to the invention, such a high-pressure discharge lamp is operated with an essentially sinusoidal current at a frequency which is in a frequency range above 30 kilohertz and which is free of acoustic resonances.
  • a high-pressure discharge lamp with the features described above in contrast to high-pressure discharge lamps with spherical or elliptical discharge vessels, have relatively large frequency ranges above 30 • kilohertz, which are free from acoustic resonances and for the stable Operation of the high pressure discharge lamp can be used.
  • the high-pressure discharge lamp is therefore operated according to the invention with an essentially sinusoidal alternating current at a predeterminable frequency in such a frequency window without frequency modulation of the lamp current.
  • the operating device can be considerably simplified by the operating method according to the invention. Compared to the operating method according to the published patent applications EP 0 708 579 AI and EP 0 386 990 A2, the part of the operating device required for frequency modulation is omitted.
  • the operating method according to the invention allows less effort in radio interference suppression and less power loss at higher lamp currents, because the lamp does not generate any significant broadband interference signals with a sinusoidal lamp current.
  • the high-pressure discharge lamp is preferably operated with a sinusoidal alternating current, the frequency of which lies in a frequency range between two adjacent acoustic resonances.
  • a frequency range between two adjacent basic frequencies of acoustic resonances is particularly preferred, since when operating with a frequency from a correspondingly low frequency range for the lamp current, the ignition circuit and the radio interference suppression of the operating device can be designed in a simple manner.
  • the aforementioned, resonance-free frequency range is wide enough to perform a power control of the high-pressure discharge lamp by changing the frequency of the lamp current.
  • the high-pressure discharge lamp is preferably operated immediately after the ignition of the gas discharge with a power which is higher than the rated power, by applying a sinusoidal alternating current to the high-pressure discharge lamp, the frequency of which is reduced in comparison with the frequency of the lamp alternating current during the stationary operating state.
  • a different, for example a higher, frequency is set for the lamp current than during the ignition phase.
  • the figure shows a schematic representation of a high-pressure discharge lamp which is suitable for the operating method according to the invention and on the basis of which the operating method according to the invention is described by way of example.
  • This lamp is a mercury-free high-pressure discharge lamp with a power consumption of 25 watts to 35 watts, which is intended for use in a motor vehicle headlight.
  • the discharge vessel 1 of this lamp has a tubular, cylindrical middle section 10, which consists of sapphire.
  • the open ends of section 10 are each closed by a ceramic closure piece 11 or 12 made of polycrystalline aluminum oxide.
  • the inner diameter of the circular cylindrical section 10 is 1.5 millimeters.
  • Two electrodes 2, 3 are arranged in the longitudinal axis of the discharge vessel 1, so that their discharge-side ends protrude into the interior of the central, cylindrical section 10 and are at a distance of 4.2 millimeters.
  • the ionizable filling enclosed in the discharge vessel 1 consists of xenon with a cold filling pressure of 5000 hectopascals and a total of 4 milligrams of the iodides of sodium, dysprosium, holmium, thulium and thallium.
  • the electrodes 2 and 3 are each connected to an electrical connection 16 and 17 of the lamp base 15 via a power supply 4 and 5, respectively.
  • the discharge vessel 1 is surrounded by a translucent outer bulb 14.
  • the acoustic resonance frequencies of the high-pressure discharge lamp can be calculated from the electrode spacing, the inner diameter of the cylindrical section 10 and from the speed of sound in the discharge medium, which is approximately 560 m / s.
  • the fundamental frequency of the longitudinal acoustic resonance is 70 kilohertz.
  • the basic frequency of the azimuthal acoustic resonance is 230 kilohertz and the basic frequency of the radial acoustic resonance is 476 kilohertz. This means that the fundamental frequency of the aforementioned acoustic resonances in the discharge space is in each case caused by an alternating current with a frequency frequency that is half as large as that of the aforementioned resonances would be excited.
  • the high-pressure discharge lamp is operated with a sinusoidal alternating current, the frequency of which lies either in the frequency range from 50 kilohertz to 100 kilohertz or in the frequency range from 150 kilohertz to 200 kilohertz, for example with a sinusoidal alternating current of 75 kilohertz or 175 kilohertz.
  • the first-mentioned frequency range thus lies between the fundamental frequency of the longitudinal acoustic resonance, which is excited by an alternating current of 35 kilohertz, and the fundamental frequency of the azimuthal acoustic resonance, which is excited by an alternating current of 115 kilohertz.
  • the second frequency range lies between the fundamental frequency of the azimuthal acoustic resonance, which is excited by an alternating current of 115 kilohertz, and the fundamental frequency of the radial acoustic resonance, which is excited by an alternating current of 238 kilohertz.
  • the operating voltage of the high-pressure discharge lamp is approximately 30 volts to 50 volts and the effective value of the sinusoidal lamp current is approximately 0.6 amperes.
  • the color temperature of the light emitted by the lamp is approximately 4000 Kelvin and the color rendering index is approximately 70.
  • the operating method according to the invention can also be applied to the high-pressure discharge lamp disclosed in the published patent application DE 103 12 290. be applied.
  • This lamp is a mercury-free metal halide high-pressure discharge lamp with an electrical power consumption of approximately 35 watts.
  • This lamp is intended for use in a vehicle headlight. It has a two-sided sealed discharge vessel 30 made of quartz glass with a volume of 24 mm 3 , in which an ionizable filling is enclosed gas-tight and which is surrounded by an outer bulb. In the area of the discharge space, the inner contour of the discharge vessel is circular-cylindrical and its outer contour is ellipsoidal.
  • the inside diameter of the discharge space is 2.6 mm and its outside diameter is 6.3 mm.
  • the distance between the two lamp electrodes is 4.2 mm.
  • the ionizable filling enclosed in the discharge vessel consists of xenon with a cold filling pressure of 11800 hPa, 0.25 mg sodium iodide, 0.18 mg scandium iodide, 0.03 mg zinc iodide and 0.0024 mg indium iodide.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

L'invention concerne un procédé pour faire fonctionner une lampe à décharge haute pression comportant une enceinte à décharge (1) translucide qui renferme un espace à décharge (10) de forme sensiblement cylindrique dans laquelle sont disposées des électrodes (2, 3) et une substance de remplissage ionisable qui servent à la génération d'une décharge dans un gaz photoluminescente, le rapport d'aspect de cette lampe étant supérieur à 0,86. Selon l'invention, on fait fonctionner la lampe à décharge haute pression avec un courant sensiblement sinusoïdal d'une fréquence préallouable comprise dans la plage supérieure à 30 kHz et exempt de résonances acoustiques.
EP04762413A 2003-07-23 2004-07-19 Procede pour faire fonctionner une lampe a decharge haute pression Ceased EP1647165A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10333740A DE10333740A1 (de) 2003-07-23 2003-07-23 Betriebsverfahren für eine Hochdruckentladungslampe
PCT/DE2004/001562 WO2005011337A1 (fr) 2003-07-23 2004-07-19 Procede pour faire fonctionner une lampe a decharge haute pression

Publications (1)

Publication Number Publication Date
EP1647165A1 true EP1647165A1 (fr) 2006-04-19

Family

ID=34042063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04762413A Ceased EP1647165A1 (fr) 2003-07-23 2004-07-19 Procede pour faire fonctionner une lampe a decharge haute pression

Country Status (9)

Country Link
US (1) US20070108913A1 (fr)
EP (1) EP1647165A1 (fr)
JP (1) JP2006528409A (fr)
KR (1) KR20060035780A (fr)
CN (1) CN1826842A (fr)
CA (1) CA2533255A1 (fr)
DE (1) DE10333740A1 (fr)
TW (1) TW200511898A (fr)
WO (1) WO2005011337A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005038350A1 (de) * 2005-08-11 2007-02-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Hochdruckentladungslampe
WO2010029487A2 (fr) * 2008-09-10 2010-03-18 Philips Intellectual Property & Standards Gmbh Lampe à décharge pourvue d’une enceinte de décharge améliorée
JP2015109174A (ja) * 2013-12-04 2015-06-11 セイコーエプソン株式会社 放電灯駆動装置、光源装置、プロジェクター、及び放電灯駆動方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121034A (en) * 1989-03-08 1992-06-09 General Electric Company Acoustic resonance operation of xenon-metal halide lamps
DE4317368A1 (de) * 1993-05-25 1994-12-01 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betrieb einer Hochdruckentladungslampe
DE4437453A1 (de) * 1994-10-19 1996-04-25 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betrieb einer Entladungslampe und Schaltungsanordnung zum Betrieb einer Entladungslampe
US5623187A (en) * 1994-12-28 1997-04-22 Philips Electronics North America Corporation Controller for a gas discharge lamp with variable inverter frequency and with lamp power and bus voltage control
US5569984A (en) * 1994-12-28 1996-10-29 Philips Electronics North America Corporation Method and controller for detecting arc instabilities in gas discharge lamps
CN1126146C (zh) * 1996-05-09 2003-10-29 皇家菲利浦电子有限公司 高压放电灯
US6400100B1 (en) * 2000-07-20 2002-06-04 Philips Electronics North America Corporation System and method for determining the frequency of longitudinal mode required for color mixing in a discharge lamp
JP3835534B2 (ja) * 2001-03-02 2006-10-18 東芝ライテック株式会社 高輝度放電灯点灯装置および照明装置
WO2002098186A1 (fr) * 2001-05-25 2002-12-05 Matsushita Electric Works, Ltd. Ballast electronique pour lampe a decharge a haute intensite
JP2003264093A (ja) * 2002-01-07 2003-09-19 Mitsubishi Electric Corp 高圧放電灯点灯装置
DE10312290A1 (de) * 2003-03-19 2004-09-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Hochdruckentladungslampe für Fahrzeugscheinwerfer
DE10333729A1 (de) * 2003-07-23 2005-03-10 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Vorschaltgerät für mindestens eine Hochdruckentladungslampe, Betriebsverfahren und Beleuchtungssytem für eine Hochdruckentladungslampe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005011337A1 *

Also Published As

Publication number Publication date
DE10333740A1 (de) 2005-02-10
CA2533255A1 (fr) 2005-02-03
KR20060035780A (ko) 2006-04-26
JP2006528409A (ja) 2006-12-14
TW200511898A (en) 2005-03-16
CN1826842A (zh) 2006-08-30
WO2005011337A1 (fr) 2005-02-03
US20070108913A1 (en) 2007-05-17

Similar Documents

Publication Publication Date Title
DE68908214T2 (de) Elektrodenlose Niederdruckentladungslampe.
EP0626799B1 (fr) Procédé pour commander une lampe à décharge haute pression
EP0824761B1 (fr) Procede permettant de faire fonctionner des lampes a decharge
DE68910909T2 (de) Erregerspule für Lampen mit hoher Intensität.
DE102005050306B3 (de) Elektrodenlose Gasentladungslampe
EP1984936A1 (fr) Lampe à décharge à haute pression
EP1817790A1 (fr) Lampe a decharge haute pression
DE102007057581A1 (de) Hochfrequenzlampe und Verfahren zu deren Betrieb
DE602004010629T2 (de) Gasentladungslampe
DE69903364T2 (de) Zündhilfe für Entladungslampe hoher Intensität
EP1653785B1 (fr) Dispositif d'allumage pour une lampe a decharge haute pression et une lampe a décharge haute pression avec un dispositif d'allumage et méthode d'opération.
EP0393449B1 (fr) Lampe fluorescente
DE10028089B4 (de) Beleuchtungseinrichtung mit einer Hochleistungs-Entladungslampe
EP1276137B1 (fr) Lampe a décharge à barrière diélectrique avec une aide à l'allumage
EP1647165A1 (fr) Procede pour faire fonctionner une lampe a decharge haute pression
EP2195825A1 (fr) Lampe à décharge haute pression et procédé de fonctionnement par résonance d'une lampe à décharge haute pression en mode longitudinal et système associé
EP2311070A1 (fr) Lampe à décharge à haute pression
DE102006034833A1 (de) Hochdruckentladungslampe
DE19945758A1 (de) Gasentladungslampe
DE3141854A1 (de) Niederdruckquecksilberdampfentladungslampe
DE102006049359A1 (de) Quecksilberlampe vom Kurzbogentyp
EP1785015A1 (fr) Procede pour faire fonctionner une lampe a decharge a haute pression, dispositif permettant de faire fonctionner une lampe a decharge a haute pression et lampe a decharge a haute pression pourvue d'un dispositif de ce type
WO2007017204A1 (fr) Lampe a decharge gazeuse haute pression
EP1894448B1 (fr) Dispositif et procede permettant de faire fonctionner une lampe a decharge haute pression
DE29817632U1 (de) Einseitig gesockelte Metallhalogenidlampe

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060113

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GUENTHER, KLAUS

Inventor name: SIESSEGGER, BERNHARD

Inventor name: HARTMANN, THOMAS

Inventor name: HIRSCHMANN, GUENTER

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20061018

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20080210