EP1538657A2 - Lampe à décharge à haute pression - Google Patents

Lampe à décharge à haute pression Download PDF

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Publication number
EP1538657A2
EP1538657A2 EP04027140A EP04027140A EP1538657A2 EP 1538657 A2 EP1538657 A2 EP 1538657A2 EP 04027140 A EP04027140 A EP 04027140A EP 04027140 A EP04027140 A EP 04027140A EP 1538657 A2 EP1538657 A2 EP 1538657A2
Authority
EP
European Patent Office
Prior art keywords
lamp
pressure discharge
vessel
discharge lamp
base
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Withdrawn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
EP04027140A
Other languages
German (de)
English (en)
Other versions
EP1538657A3 (fr
Inventor
Dirk Grundmann
Werner Dr. Jordan
Ekkehard Dr. Messner-Mecklenburg
Peter Röstel
Thomas Schmidt-Lehmann
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 EP1538657A2 publication Critical patent/EP1538657A2/fr
Publication of EP1538657A3 publication Critical patent/EP1538657A3/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Withdrawn legal-status Critical Current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
    • 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
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/40—Devices for influencing the colour or wavelength of the light by light filters; by coloured coatings in or on the envelope

Definitions

  • the invention relates to a high pressure discharge lamp according to the preamble of Patent claim 1.
  • Such a high-pressure discharge lamp is for example in the published patent application EP 0 786 791 A1.
  • the high-pressure discharge lamp described in this document is for use as a light source in a motor vehicle headlight intended.
  • This high pressure discharge lamp has a sealed, axisymmetric Quartz glass discharge vessel with two ends, from which power supply lines protrude. A first end close to the base is in a lamp base arranged, while the second, remote base end facing away from the base.
  • the Discharge vessel is of a translucent outer bulb of UV radiation surrounded by absorbing glass. In this high pressure discharge lamp can both Light and UV radiation from the front side of the socket-distal end of the discharge vessel emerge because the wall of the tubular discharge vessel as a
  • Optical fiber for the electromagnetic radiation generated in the discharge arc acts.
  • the emerging from the end face of the socket remote end of the discharge vessel Light affects the imaging properties of the vehicle headlight to an undesirable extent, while those from the front of the socket-distal end Exiting UV radiation can lead to damage to the headlight lens.
  • the high-pressure discharge lamp according to the invention has at least one lamp vessel with a first end which is arranged in a lamp base, and a second, sockelfernen end whose end face according to the invention with a light and UV-opaque cover is provided. Through this cover prevents - due to the light-conducting effect of the lamp vessel wall - from the front side of the socket remote end of the at least one lamp vessel light or UV radiation can escape.
  • the front side of the arranged in the lamp base, socket near end of the at least a lamp vessel is also advantageous with one for light and UV radiation impermeable cover provided to the risk of injury usually made of plastic lamp base by electromagnetic Reduce radiation.
  • the cover is preferably as a coating, in particular formed as a color layer.
  • headlight bulbs such as H4 and H7 lamps
  • to cover the lamp vessel tip used coating material consisting of a dispersion of colored pigments, for example black pigments, with iron carbonyl, Ethylene silicate and ethanol is produced.
  • This coating has a high Heat resistance, sufficient adhesion to the lamp vessel and is easy to produce.
  • the for light and ultraviolet radiation impermeable cover on the front sides the discharge vessel of a high-pressure discharge lamp for motor vehicle headlights applied which is a discharge vessel made of quartz glass with a sockelnahen and a socket remote end and the discharge vessel, or the lateral surface of the discharge vessel, enclosing outer bulb has.
  • FIG. 1 In the first embodiment shown in Figure 1 is a single ended high pressure discharge lamp for use in a Motor vehicle headlight is provided.
  • This lamp has a soffitten shames Discharge vessel 100 with a gas-tight discharge chamber 103, a sockelnahen 101 and a base 102 squeezing.
  • In the discharge room 103 protrude two electrodes 104, 105, each one in the squeezing 101 and 102 gas-tight melted molybdenum foil 106, 107 with one of the Crushing 101, 102 lead out power supply 108, 109 electrically conductive are connected.
  • the lamp base has one of a plastic injection molded part existing base sleeve 110 and disposed within the base sleeve 110, adjustable, also consisting of a plastic injection molding retaining element 111 on.
  • the end facing away from the discharge vessel 100 of the base sleeve 110 is as Plug with two electrical contacts 112, 113 is formed.
  • the center contact 112 is connected to the led out of the squeeze-close pinch end 101 power supply 108 electrically connected, while the other, annular electrical Contact 113 via a 114 enclosed by a ceramic tube 114 feedback electrically conductive with the protruding from the sockets distant squeezing 102 Power supply 109 is connected.
  • the discharge vessel 100 is of a cylindrical, almost coaxial with the discharge vessel 100 arranged outer bulb 116 surrounded, the sockelferne Crushing 102 and to a tubular in the base sleeve 110 extending Extension 118 of the discharge vessel 100 is melted.
  • the outer bulb 116 is provided with a tubular extension 119, which is the tubular Extension 118 of the discharge vessel 100 partially encloses.
  • the High pressure discharge lamp becomes the tubular extension 119 of the outer bulb 116 in the holding element 111 by means of an integrated in the holding element 111, the tubular extension 119 of the outer bulb 116 enclosing metal hole sleeve 120, which is heated with a high-frequency induction signal, melted down.
  • the side facing away from the base 110 end face of the base remote end 102 of the discharge vessel 100 is with a light and UV impermeable coating 125 provided.
  • the coating 125 is formed by means of a dispersion black pigments, iron carbonyl, ethyl silicate and ethanol, which are on the front the socket-distal end 102 is applied and baked, made.
  • the coating 125 extends at least over the end face of the base remote end 102 of the discharge vessel 100, but is also due to manufacturing reasons extended the edge of the outer bulb 116, with the end face of the base remote End 102 completes.
  • the coating 126 covers at least the end face of the circular cylindrical Wall of the tubular extension 118. That is, the coating 126 extends at least over the entire thickness of the wall of the extension 118th
  • the base sleeve 110 is pot-shaped.
  • the holding element 111 is complete arranged inside 117 of the base sleeve 110.
  • the outer wall of the retaining element 111 is partially of an annular, the holding member 111 surrounding metal part 121 formed, which is anchored in the holding element 111.
  • a metal ring 122 is embedded, the four molded Welding flags 123 has. These four welding lugs 123 protrude into the interior 117 the base sleeve 110 and are at the onset of the holding element 111 in the base sleeve 110 and during the subsequent adjustment of the lamp resiliently on the annular metal part 121 of the holding element 111 at.
  • the welding lugs 123 are welded to the annular metal part 121 and thereby the holding element 111 and the base sleeve 110 in the adjusted position connected with each other. So that the welding lugs 123 for the welding tools are accessible, has the base sleeve wall 110 in the region of the welding vanes 123rd each have a breakthrough 124.
  • FIG. 1 shows one of the four welding lugs 123 with dashed lines, since these in the view selected here, normally by the annular metal part 121 is covered.
  • the annular metal part 121 and the metal hole cuff 120 define an annular groove 124 in the holding element 111, in the for the purpose of radio frequency induced heating of the metal hole cuff 120 briefly Wire loop (not shown) is inserted.
  • the color layer 125 or 126 may also be a PVD layer (where the abbreviation PVD stands for Plasma Vapor Deposition) according to the German patent application with the official file number 103 12 806.9, for example a copper-oxygen compound or an aluminum-nitrogen compound be used, with their layer thickness chosen sufficiently thick is so that it is opaque.
  • PVD Plasma Vapor Deposition
  • a copper-oxygen compound or an aluminum-nitrogen compound be used, with their layer thickness chosen sufficiently thick is so that it is opaque.
  • the aforementioned PVD layer is in known Way by means of a sputtering process on the side facing away from the base end face the discharge vessel and the outer bulb or applied to both end faces.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP04027140A 2003-12-04 2004-11-15 Lampe à décharge à haute pression Withdrawn EP1538657A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10357050 2003-12-04
DE2003157050 DE10357050A1 (de) 2003-12-04 2003-12-04 Hochdruckentladungslampe

Publications (2)

Publication Number Publication Date
EP1538657A2 true EP1538657A2 (fr) 2005-06-08
EP1538657A3 EP1538657A3 (fr) 2010-01-27

Family

ID=34442481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04027140A Withdrawn EP1538657A3 (fr) 2003-12-04 2004-11-15 Lampe à décharge à haute pression

Country Status (3)

Country Link
EP (1) EP1538657A3 (fr)
JP (1) JP2005166670A (fr)
DE (1) DE10357050A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011092608A1 (fr) * 2010-01-28 2011-08-04 Koninklijke Philips Electronics N.V. Brûleur ayant une hauteur réduite et procédé de fabrication d'un brûleur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4808552B2 (ja) * 2006-06-22 2011-11-02 ハリソン東芝ライティング株式会社 自動車用放電ランプ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US615940A (en) * 1898-12-13 wright
US2130304A (en) * 1936-09-25 1938-09-13 Gen Electric Enclosed electric arc lamp
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011092608A1 (fr) * 2010-01-28 2011-08-04 Koninklijke Philips Electronics N.V. Brûleur ayant une hauteur réduite et procédé de fabrication d'un brûleur
US8729802B2 (en) 2010-01-28 2014-05-20 Koninklijke Philips N.V. Burner with reduced height and method of manufacturing a burner

Also Published As

Publication number Publication date
EP1538657A3 (fr) 2010-01-27
DE10357050A1 (de) 2005-06-30
JP2005166670A (ja) 2005-06-23

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