EP1564784A2 - Lampe à décharge haute pression et procédé pour la fabrication d'une lampe à décharge à haute pression - Google Patents

Lampe à décharge haute pression et procédé pour la fabrication d'une lampe à décharge à haute pression Download PDF

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Publication number
EP1564784A2
EP1564784A2 EP05000614A EP05000614A EP1564784A2 EP 1564784 A2 EP1564784 A2 EP 1564784A2 EP 05000614 A EP05000614 A EP 05000614A EP 05000614 A EP05000614 A EP 05000614A EP 1564784 A2 EP1564784 A2 EP 1564784A2
Authority
EP
European Patent Office
Prior art keywords
discharge
discharge vessel
lamp
matting
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Withdrawn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
EP05000614A
Other languages
German (de)
English (en)
Other versions
EP1564784A3 (fr
Inventor
Vladimir Högele
Thomas Dr. Reiners
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 EP1564784A2 publication Critical patent/EP1564784A2/fr
Publication of EP1564784A3 publication Critical patent/EP1564784A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel

Definitions

  • the invention relates to a high pressure discharge lamp according to the preamble of Patent claim 1 and a manufacturing method for such a high-pressure discharge lamp.
  • Such a high-pressure discharge lamp is for example in the published patent application DE 198 34 401 A1 discloses.
  • This document describes a high-pressure discharge lamp for a motor vehicle headlight, the discharge vessel on the Provided on the inside or on the outside with a translucent matting is.
  • This matting extends over the entire circumference of the axisymmetric Discharge vessel and over the entire length of the discharge vessel section, which encloses the discharge space arranged between the electrodes of the lamp.
  • the matting scatters the light emitted by the discharge arc, so that, for example, caused by vibrations flickering of the discharge arc not detected and imaged by the optical system of the headlight becomes.
  • the high pressure discharge lamp should meet the requirements of Regulation ECE Rule 99 with respect to the width of the discharge arc. Furthermore it is the object of the invention to provide a simple manufacturing method for to provide such a high pressure discharge lamp.
  • the high-pressure discharge lamp according to the invention has a lamp cap and an axially symmetric discharge vessel, in the discharge space a metal halides containing ionizable filling and electrodes for generating a gas discharge are arranged, wherein the discharge vessel with a translucent Matting is provided according to the invention as a partial matting of the discharge vessel is formed in the region of the discharge space, which on a extending over a part of the discharge vessel circumference extending portion of the inside or outside of the discharge vessel is limited, this section has a well-defined position with respect to the lamp cap.
  • the inventive High pressure discharge lamp the rule according to ECE Rule 99 regarding the Width of the discharge arc fulfilled, without that by the matting a considerable Reduction of the light output is caused, as in the high-pressure discharge lamp according to the prior art.
  • the invention is particularly advantageous Apply high pressure discharge lamps, the one compared to conventional High-intensity discharge lamps have strongly contracted discharge arc, such as Example mercury-free high-pressure discharge lamps whose ionizable filling consists of xenon and metal halides.
  • these high pressure discharge lamps Due to the partial matting of the discharge vessel and the well-defined spatial orientation of this partial matting with respect to the lamp cap, these high pressure discharge lamps also meet the rule according to ECE Rule 99 regarding the width of the discharge arc, because the light emitted from the discharge arc light at the partial matting of the discharge vessel is scattered and thus to a broadening of the discharge arc in the projection leads.
  • the partial matting of the discharge vessel extends in an advantageous manner only over the smallest possible part of the discharge vessel circumference in order to ensure that no excessive reduction of the light output due to light scattering occurs.
  • the partial matting extends over an area less than 35 percent of the discharge vessel circumference, and preferably of less than 12 percent of the discharge vessel circumference.
  • the high-pressure discharge lamp according to the invention is preferably to a high-pressure discharge lamp, the discharge vessel, a first, close to the socket End and a second, sockelfernes end has, from the one to the lamp base recycled power return line is led out.
  • a frosted section of the discharge vessel of which at least one subsection within an angular range of 70 degrees to 200 Degree along the discharge vessel circumference is arranged, wherein the angle in the Cross-sectional plane opposite the connecting line between the discharge vessel axis is measured with the return current.
  • the best results are with reaches a relatively narrow frosted portion which is within the angular range from 120 degrees to 160 degrees along the discharge vessel periphery or arranged by the at least one subsection in the aforementioned angular range is.
  • the partial matting of the discharge vessel may be on the outside of the discharge vessel by roughening by sandblasting, by chemical etching processes or by other known suitable methods. Especially but advantageous is a partial matting of the discharge vessel on its inside, from a deposit of metal oxides on the inside of the discharge vessel exists, since this partial Matt michmaschine without additional costs and easy way to make.
  • the haf on the inside of the discharge vessel wall Metal oxides act as scattering centers for the emitted from the discharge arc Light.
  • the inventive method for producing a high-pressure discharge lamp according to the invention is characterized by the fact that the partial matting of the Inside the discharge vessel, before attaching the lamp base, in the sealed, ionizable with the electrodes and the metal halides containing Fill the discharge vessel in a horizontal position between the electrodes gas discharge is generated and then the location of the Partial matting generated by the gas discharge when attaching the lamp cap is aligned with reference points of the lamp cap.
  • the discharge vessel a first end close to the base and a second end remote from the base, from the one to the Lamp base recessed power return line protrudes, is at Attaching the lamp cap, the discharge vessel relative to the lamp base and the power return line is oriented such that at least a portion of the through the gas discharge produced frosting within the angular range of 70 degrees to 200 degrees, preferably within the angular range of 120 degrees to 160 Grad, along the discharge vessel circumference is arranged, wherein the angle in a Cross-sectional plane perpendicular to the discharge vessel axis with respect to the connecting line measured between the discharge vessel axis and the current return line becomes.
  • the position of the current return on the lamp base or the aforementioned fictitious connecting line serve as a reference for the orientation of the frosted Section.
  • the discharge vessel in order to optimize the position of the matting Attaching the lamp base, gradually to a predetermined Angle is rotated about its longitudinal axis and after each rotation is in each case reached a measurement of the width of the discharge arc performed.
  • This high-pressure discharge lamp has a double-sided sealed Axially symmetrical discharge vessel 30 made of quartz glass with a first, near the bottom 302 and a second end remote from the socket 301.
  • Axially symmetrical discharge vessel 30 made of quartz glass with a first, near the bottom 302 and a second end remote from the socket 301.
  • an ionizable filling gas-tight enclosed In the discharge space 300 of the discharge vessel 30, an ionizable filling gas-tight enclosed.
  • the ionizable filling consists of xenon and metal halides, especially sodium iodide, scandium iodide, zinc iodide and indium iodide.
  • the two Ends 301, 302 of the discharge vessel 30 are each by means of a Molybdänfolien-Einschmelzung 303, 304 sealed.
  • the discharge space 300 protrude two diametrically arranged along the longitudinal axis of the discharge vessel 30 electrodes 31, 32 inside, between which during the lamp operation of the light emission responsible discharge arc 39 is formed.
  • the electrodes 31, 32 are each via one of the molybdenum foil melts 303, 304 and beyond the base Power supply 33 and the power return line 38 and on the socket side Power supply 34 electrically conductive with an electrical terminal 2 of the lamp cap 1 connected.
  • the discharge vessel 30 is of a glass outer bulb 36 wrapped.
  • the outer bulb 36 has an anchored in the lamp base 1 Extension 361.
  • the discharge vessel 30 has a tube-like extension on the base side 305 made of quartz glass, in which runs the socket-side power supply, the in turn, formed with an axially arranged as a contact pin electrical Connection (not shown) of the lamp cap is connected.
  • the outer contour of the discharge vessel 30 corresponds in the region of the discharge space 300 of the shape of an ellipsoid of revolution.
  • the inner contour of the discharge vessel 30 is formed in the region of the discharge space 300 circular cylindrical.
  • the Inner side of the discharge vessel 30 is partial in the region of the discharge space 300 provided with a translucent matting 37.
  • the matting 37 consists of on the inside of the Discharge vessel 30 adhering metal oxides. In particular, it is oxides the metals occurring in the ionizable filling sodium, scandium, Zinc and indium.
  • the matting 37 extends in the longitudinal direction over a part the length of the discharge arc 39 and is approximately midway between the two electrodes 31, 32 arranged.
  • the extension of the matting 37 along the circumference of the discharge vessel 30 is about 30 to 40 degrees, that is, the matting 37 extends over approximately 8 to 11 percent of the discharge vessel circumference.
  • the spatial position of the matting 37 is adjusted relative to the lamp base 1.
  • FIGs 1 and 2 are details of the alignment of the matting 37 with respect to the lamp cap 1 and the power return line 38 shown schematically.
  • the (fictitious) connecting line between the electrode 31 extending in the longitudinal axis of the discharge vessel 30 and the power return 38 used as a reference for the adjustment of the matting 37.
  • the matting 37 is within an angular range of approximately 120 degrees to 160 degrees along the circumference of the discharge vessel 30 in the region of the discharge space 300 disposed on the inside of the discharge vessel. It will the angle ⁇ with respect to the aforementioned connecting line between the electrode 31 and the power return 38 measured.
  • the angle ⁇ becomes in the viewing direction according to the representation of Figure 2, that is, with a view of the second sockelferne second End 301 of the discharge vessel 30, clockwise against the aforementioned, in Figure 1 illustrated connecting line between the electrode 31 and the power return line 38 measured.
  • the discharge vessel 30 After mounting the high pressure discharge lamp in the headlight of a motor vehicle, the discharge vessel 30 is oriented horizontally, so that the power return conductor 38 extends below the discharge vessel 30, such as is shown schematically in Figure 2.
  • the matting 37 is thereby on the right side of the discharge vessel 30, that is, the matting shows in Built-in state of the high pressure discharge lamp to the right side of the vehicle.
  • the electrodes 31, 32 and the ionizable Fill provided discharge vessel 30 sealed and aligned horizontally. Subsequently, between the electrodes 31, 32 for the duration of a few Seconds creates a gas discharge in the ionizable filling.
  • horizontally arranged discharge arc 39 is due to convection Crescent-shaped.
  • the outer bulb 36 fixed in a known manner to the discharge vessel 30 and then the two lamp vessels 30, 36 provided with the lamp base 1.
  • the lamp vessels 30, 36 about the longitudinal axis of the discharge vessel 30 and the longitudinal axis of the outer bulb 36 is rotated until the matting 37, the optimum position with respect to the power return line 38 has.
  • the lamp vessels 30, 36 in a known manner in the lamp base 1 anchored.
  • the Width of the discharge arc 39 in accordance with the measuring instructions of ECE Rule 99 for different orientations of the discharge vessel 30 with respect to the lamp base 1 and the current return line 38 measured.
  • the discharge vessel 30 in the base machine gradually rotated by 10 degrees about its longitudinal axis and the width of the discharge arc in accordance with ECE Rule 99 for the determined different angle of rotation. This optimization results in the above described alignment of the matting 37 relative to the lamp cap 1 and the power return line 38.
  • the width of the discharge arc 39 determined in accordance with Regulation ECE Rule 99 39 has with the partial matting 37 of the discharge vessel 30 has a value of 1.19 mm. Without the partial matting 37 of the discharge vessel 30 performs the measurement the width of the discharge arc according to the rule ECE Rule 99 to a Value of 0.79 mm.
  • the invention is not limited to the embodiment explained in more detail above.
  • a partial matting of the outside of the Discharge vessel are carried out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Discharge Lamp (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
EP05000614A 2004-02-05 2005-01-13 Lampe à décharge haute pression et procédé pour la fabrication d'une lampe à décharge à haute pression Withdrawn EP1564784A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004005903 2004-02-05
DE102004005903A DE102004005903A1 (de) 2004-02-05 2004-02-05 Hochdruckentladungslampe und Herstellungsverfahren für eine Hochdruckentladungslampe

Publications (2)

Publication Number Publication Date
EP1564784A2 true EP1564784A2 (fr) 2005-08-17
EP1564784A3 EP1564784A3 (fr) 2008-06-04

Family

ID=34683973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05000614A Withdrawn EP1564784A3 (fr) 2004-02-05 2005-01-13 Lampe à décharge haute pression et procédé pour la fabrication d'une lampe à décharge à haute pression

Country Status (6)

Country Link
US (1) US7396270B2 (fr)
EP (1) EP1564784A3 (fr)
JP (1) JP2005222951A (fr)
CN (1) CN1652291A (fr)
CA (1) CA2495852A1 (fr)
DE (1) DE102004005903A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013050914A1 (fr) * 2011-10-04 2013-04-11 Koninklijke Philips Electronics N.V. Lampe aux halogénures pour phare d'automobile et phare équipé de ladite lampe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020344A1 (de) * 2005-05-02 2006-11-09 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Lampe mit Außenkolben

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19834401A1 (de) 1998-07-30 2000-02-03 Hella Kg Hueck & Co Hochdruckgasentladungslampe für ein Kraftfahrzeug

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE950224C (de) * 1952-09-21 1956-10-04 Quarzlampen Gmbh Elektrische Ultraviolett-Bestrahlungslampe
DE2619674C2 (de) * 1976-05-04 1986-05-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Halogen-Metalldampfentladungslampe
US4798995A (en) * 1986-10-06 1989-01-17 General Electric Company Metal halide lamp containing halide composition to control arc tube performance
US5098326A (en) * 1990-12-13 1992-03-24 General Electric Company Method for applying a protective coating to a high-intensity metal halide discharge lamp
DE4108316A1 (de) * 1991-03-14 1992-09-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einseitig gesockelte elektrische lampe
DE4317368A1 (de) * 1993-05-25 1994-12-01 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betrieb einer Hochdruckentladungslampe
DE9401436U1 (de) * 1994-01-28 1994-03-31 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Metallhalogenidentladungslampe für Projektionszwecke
DE29507422U1 (de) * 1994-05-10 1995-06-29 Philips Electronics Nv Gesockelte Hochdruckentladungslampe
EP0704880A3 (fr) * 1994-09-28 1998-09-30 Matsushita Electric Industrial Co., Ltd. Lampe à décharge haute pression, procédé de fabrication d'un tube à décharge pour lampes à décharge haute pression et procédé de fabrication d'un tube creux
DE19910709A1 (de) * 1999-03-10 2000-09-14 Audi Ag Gasentladungslampe für einen Kraftfahrzeugscheinwerfer
US6583564B1 (en) * 1999-11-17 2003-06-24 Matsushita Electric Industrial Co., Ltd. Discharge lamp with light-intercepting film bands
US6857926B1 (en) * 2000-06-19 2005-02-22 Advanced Lighting Technologies, Inc. Method of making arc tubes
DE10048818A1 (de) * 2000-09-29 2002-04-18 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einseitig gesockelte elektrische Lampe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19834401A1 (de) 1998-07-30 2000-02-03 Hella Kg Hueck & Co Hochdruckgasentladungslampe für ein Kraftfahrzeug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013050914A1 (fr) * 2011-10-04 2013-04-11 Koninklijke Philips Electronics N.V. Lampe aux halogénures pour phare d'automobile et phare équipé de ladite lampe

Also Published As

Publication number Publication date
DE102004005903A1 (de) 2005-08-25
US20050174060A1 (en) 2005-08-11
CA2495852A1 (fr) 2005-08-05
JP2005222951A (ja) 2005-08-18
CN1652291A (zh) 2005-08-10
EP1564784A3 (fr) 2008-06-04
US7396270B2 (en) 2008-07-08

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