EP2469579A2 - Lampe à décharge à haute pression avec dispositif d'allumage - Google Patents

Lampe à décharge à haute pression avec dispositif d'allumage Download PDF

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Publication number
EP2469579A2
EP2469579A2 EP11192144A EP11192144A EP2469579A2 EP 2469579 A2 EP2469579 A2 EP 2469579A2 EP 11192144 A EP11192144 A EP 11192144A EP 11192144 A EP11192144 A EP 11192144A EP 2469579 A2 EP2469579 A2 EP 2469579A2
Authority
EP
European Patent Office
Prior art keywords
enhancer
vessel
discharge lamp
pressure discharge
frame
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Withdrawn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
EP11192144A
Other languages
German (de)
English (en)
Other versions
EP2469579A3 (fr
Inventor
Michael Beau
Andreas Hohlfeld
Sascha Piltz
Karen Twesten
Ludger Wilken
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
Osram 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 Osram GmbH filed Critical Osram GmbH
Publication of EP2469579A2 publication Critical patent/EP2469579A2/fr
Publication of EP2469579A3 publication Critical patent/EP2469579A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • H01J61/54—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
    • 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

Definitions

  • the invention relates to a high-pressure discharge lamp according to the preamble of claim 1.
  • Such lamps are in particular high-pressure discharge lamps for general lighting.
  • the object of the present invention is to provide a high-pressure discharge lamp whose ignition is reliable without appreciably increasing the cost.
  • the modified integrated UV enhancer offers several advantages over existing embodiments. It is cheap, easy to assemble and yet reliable.
  • a separate UV enhancer is first prepared using a quartz glass bulb and welded to the short power supply of the frame supporting the discharge vessel. Thereafter, a strip of molybdenum or a thin wire is passed around it and rejoined at the ends to allow close contact. Subsequently, the other end of the band is welded to the long power supply of the frame. Compared to a Zünd construction without UV enhancer three additional welds are needed here.
  • the vessel of the enhancer is usually made of quartz glass or ceramic.
  • a metal foil is located in the vessel, which acts as an electrode. This electrode is capacitively coupled to another electrode positioned outside the vessel.
  • the novel and inexpensive to produce UV enhancer is now integrated with the frame.
  • its vessel or piston is made of ceramic such as PCA or quartz glass.
  • the vessel is used together with a niobium wire as an electrode or a foil of Mo.
  • the niobium wire ends either on the outer surface of the vessel in the sense of an outer electrode or it is enclosed gas-tight by the vessel, preferably by means of a fusion.
  • the integrated UV enhancer is based on the idea to use the frame directly as an electrode or component for a capacitive coupling.
  • a single electrode in the cavity is preferably designed as a metal foil of Mo or W, which is preferably cylindrically shaped, within the cavity.
  • the second electrode is then virtually a dielectrically impeded electrode on the outside.
  • This film is connected by a metal wire as a contact part with the actual potential-emitting electrode system or a hanger wire.
  • the volume of the cavity is filled with a suitable gas or Penning mixture (e.g., Ar, Ar-Xe or Ar-Hg or N2) and sealed, preferably with a glass solder.
  • a suitable gas or Penning mixture e.g., Ar, Ar-Xe or Ar-Hg or N2
  • the filling pressure of the gas (cold) should be between 1 mbar and 100 mbar.
  • UV enhancers require installation space in the outer bulb of the lamp, which is critical in particular for smaller high-pressure discharge lamps, that is to say for wattages of, for example, 50 W.
  • a quasi-integrated UV enhancer as described here is characterized by absolute positional fidelity and consistent effect.
  • the UV generation takes place in the immediate vicinity of the discharge vessel.
  • UV enhancers with two electrodes
  • more Components such as a capacitor ( US 4,987,344 ) or even more complex controls ( US 4,721,888 ) is possible to limit the current through the UV enhancer.
  • UV enhancers have prevailed that have only one electrode and use a dielectrically impeded discharge. These UV enhancers are relatively inexpensive.
  • the counterelectrode is brought from outside to the discharge vessel in the sense of a capacitive coupling.
  • a metal wire of Nb which extends into the vessel of the enhancer is suitable.
  • This internal electrode is connected to the actual potential-emitting electrode system or hanger wire.
  • the other embodiment of a suitable electrode shape is a metal foil of Mo or W, which is located within the cavity and which is connected by a metal wire with the actual potential-emitting electrode system or hanger wire or long power supply.
  • the vessel of the UV enhancer is made of quartz glass.
  • a metal foil or one to two wires located outside the enhancer is contacted with the opposite pole and acts as a second electrode.
  • FIG. 1 is a metal halide lamp 1 is shown schematically, in which a discharge vessel 2 of PCA is contained in an outer bulb 3 made of quartz glass, which with a Socket 4 is completed.
  • the discharge vessel 2 has two ends, sit on the capillaries 5.
  • the discharge vessel 2 is provided with a metal halide filling, as known per se. It is supported in the outer bulb 3 by means of a frame 6, which has a short frame wire 7 and a long hanger wire 8.
  • a UV enhancer 10 with quartz glass vessel which is connected to the short frame wire 7 made of Nb via a feed line 11 made of Nb.
  • Such UV enhancers 10 must be capacitively coupled or contacted with counterpotential in order to enable a dielectrically impeded discharge.
  • the hanger wire 8 is guided out of Nb through the sleeve 15 of the vessel of the UV enhancer 10. Both open ends of the sleeve 15 are then sealed with glass solder 16.
  • the short power supply 7 is bent to the side of the sleeve 15 out.
  • the free end 20 of the short power supply terminates directly on the outer surface of the sleeve.
  • the short power supply 7 is angled at right angles and the UV enhancer 10 sits just in about the amount of the angled branch 21 of the short power supply directly to the hanger wire. 8
  • a coil 30 which is attached to the blunt free end 20 of the short power supply 7 and the vessel of the UV enhancer 10, see FIG. 3 .
  • the helix 30 is wound around at least twice, in particular at most three times.
  • FIG. 1 Alternatively, instead of the helix, it is also possible to use a film which is wound as a band around the UV enhancer, see FIG. 1 .
  • the advantage is that in contrast to the prior art, three welds can be saved and claimed the UV enhancer only a small space.
  • the prior art FIG. 1
  • FIG. 1 requires three additional welds, in contrast to mounting without a UV enhancer: weld UV enhancer to the frame, weld together the foil, weld the foil to the frame.
  • the present design does not require any of the three welds.
  • FIG. 4 another embodiment is shown. This is analogous to Figures 2 and 3 the UV enhancer 10 to the long power supply, the hanger wire 8, melted. In this case, however, the hanger wire 8 is bent (26) such that the UV enhancer touches the first capillary 5 or at least approaches it from the outside. Since the counterpotential is not applied directly here, but is only available inside the capillary 5, in this embodiment the UV enhancer should be filled with a Penning mixture Ne / Ar or Ar / Xe.
  • the UV enhancer is first prepared by a tube or sleeve is pushed onto the still-straight strap wire 8 and then filled and sealed by means of glass solder. Only then is the stirrup wire 8 bent, as in FIG. 4 shown.
  • FIG. 5 Another embodiment is in FIG. 5 shown.
  • the ceramic UV enhancer 10 is manufactured analogously to point 1) to 6) of the production method, with the difference that the end of the short frame wire 7, a niobium wire, is not passed through the UV enhancer 10, but only into the vessel , So in the interior of the sleeve 15 protrudes.
  • the short power supply 7 of the discharge vessel is used directly as an electrode of the UV enhancer and thus simplifies the assembly considerably. Compared to the prior art so at least one weld is saved.
  • FIG. 6 Another option is in FIG. 6 shown.
  • the UV-Enhancer 10 is manufactured with one-sided contact.
  • the end of the short current lead 7 of the discharge vessel is used as electrode 32 of the UV enhancer and introduced into the first end of the vessel of the UV enhancer, see FIG. 6 , the first end is then closed with glass solder 16.
  • the second end of the vessel of the UV enhancer is applied to the hanger wire 8 and can thus generate the voltage for the generation of UV radiation in the case of ignition.
  • FIG. 7 shows another way to easily mount the UV enhancer 10.
  • the unilaterally contacted UV enhancer is formed by the end of the short power supply 7. However, this end 37 is bent so that it is oriented parallel to the discharge vessel 2.
  • the hanger wire 8 is bent over at the level of the UV enhancer 10 and guided around it as a helix 38.
  • a step-like shaped glass solder ring 40 can be used. This is carried out with a larger circular ring 41 and an attached concentric smaller circular ring 42 so that it can be better inserted into the ceramic tube or sleeve 15 of the vessel and not so easily slip during processing.
  • FIGS. 8a and 8b such a glass solder ring 40 is shown. The prior art does not have this level 43.
  • the present examples are suitable for niobium frame wires.
  • the linear coefficient of thermal expansion of niobium (7, 9x10 -6 ) matches that of the ceramic vessel of the UV enhancer PCA (8,1x10 -6 ). Analogous to the melting of the discharge vessel, this combination of materials can survive many thermal cycles of switching on and off.
  • the tube-like vessel 50 of the UV enhancer is made of quartz glass.
  • the portion of the frame adjacent to the UV enhancer for example, a portion of the hanger wire 8, should be made of molybdenum (5.8 ⁇ 10 -6 ).
  • the embodiments are similar to those in 2 to 7 shown possible.
  • FIG. 9 is such a UV enhancer 10 outlined, with the power supply lines 81 of molybdenum, which protrude into the tube 50 and are connected to each other via a molybdenum foil 88 in the middle.
  • the cavity 89 in the middle, which bridges the film 88, is surrounded by the quartz glass tube 50, so that a dielectrically impeded discharge, relative to the short frame wire 7, can take place in the cavity.
  • the outer electrode guided close by is, for example, the free end 20 of the short frame wire.
  • the assembly is analogous to the example Figures 2 . 3 or 4 instead of.
  • the embodiments in the Figures 5 . 6 and 7 can also be made with a unilaterally contacted UV enhancer made of quartz glass according to the prior art.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
EP11192144A 2010-12-23 2011-12-06 Lampe à décharge à haute pression avec dispositif d'allumage Withdrawn EP2469579A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010064040A DE102010064040A1 (de) 2010-12-23 2010-12-23 Hochdruckentladungslampe mit Zündhilfe

Publications (2)

Publication Number Publication Date
EP2469579A2 true EP2469579A2 (fr) 2012-06-27
EP2469579A3 EP2469579A3 (fr) 2013-03-27

Family

ID=45093561

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11192144A Withdrawn EP2469579A3 (fr) 2010-12-23 2011-12-06 Lampe à décharge à haute pression avec dispositif d'allumage

Country Status (4)

Country Link
US (1) US20120161622A1 (fr)
EP (1) EP2469579A3 (fr)
CN (1) CN102569004A (fr)
DE (1) DE102010064040A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013014243A1 (fr) * 2011-07-28 2013-01-31 Osram Ag Lampe à décharge à haute intensité dotée d'un dispositif d'aide à l'amorçage

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103582267B (zh) * 2012-07-25 2017-05-24 欧司朗有限公司 辅助启动机构及包含该辅助启动机构的高压气体放电灯
CN102791066A (zh) * 2012-08-04 2012-11-21 庄景阳 借助led灯照明解决放电管黑暗效应
CN104637779B (zh) * 2015-01-31 2017-03-15 深圳市美吉星集成科技有限公司 灯泡内置单电极紫外线放电管的hed灯
WO2022167262A1 (fr) * 2021-02-02 2022-08-11 Signify Holding B.V. Aide à l'allumage pour décharges à barrière diélectrique
CN114188197B (zh) * 2021-12-09 2024-06-18 首固光电江苏有限公司 一种紫外线灯起始气体及其填充工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4721888A (en) 1984-12-27 1988-01-26 Gte Laboratories Incorporated Arc discharge lamp with ultraviolet enhanced starting circuit
US4987344A (en) 1990-02-05 1991-01-22 Gte Products Corporation Arc discharge lamp with internal starter
US5811933A (en) 1996-07-11 1998-09-22 U.S. Philips Corporation High-pressure discharge lamp
US6919686B2 (en) 2002-01-09 2005-07-19 Ushiodenki Kabushiki Kaisha Discharge lamp having an auxiliary light source to produce light with a short wavelength
WO2010119793A1 (fr) 2009-04-17 2010-10-21 岩崎電気株式会社 Dispositif de source de lumière
WO2010131574A1 (fr) 2009-05-14 2010-11-18 岩崎電気株式会社 Dispositif de source de lumière

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818915A (en) * 1987-10-22 1989-04-04 Gte Products Corporation Arc discharge lamp with ultraviolet radiation starting source
US5942840A (en) * 1997-04-22 1999-08-24 Philips Electronics North America Corp. High-pressure discharge lamp with sealed UV-enhancer
US5990599A (en) * 1997-12-18 1999-11-23 Philips Electronics North America Corp. High-pressure discharge lamp having UV radiation source for enhancing ignition
US6563267B1 (en) * 1999-06-16 2003-05-13 Koninklijke Philips Electronics N.V. High-pressure discharge lamp having seal with external antenna
JP4568989B2 (ja) * 2000-11-15 2010-10-27 東芝ライテック株式会社 高圧放電ランプおよび照明装置
US6806646B2 (en) * 2001-09-24 2004-10-19 Osram Sylvania Inc. UV enhancer for a metal halide lamp
JP2008140614A (ja) * 2006-11-30 2008-06-19 Osram Melco Toshiba Lighting Kk 高圧金属蒸気放電ランプおよび照明器具
US7301283B1 (en) * 2007-03-10 2007-11-27 Osram Sylvania Inc. Starting aid for low wattage metal halide lamps
EP2053628A1 (fr) * 2007-10-26 2009-04-29 Koninklijke Philips Electronics N.V. Unité de lampe à culot et réflecteur
JP4572978B2 (ja) * 2008-10-08 2010-11-04 岩崎電気株式会社 光源装置
DE202009013108U1 (de) * 2009-09-30 2010-12-09 Osram Gesellschaft mit beschränkter Haftung Hochdruckentladungslampe mit Zündhilfe
DE102010038403A1 (de) * 2010-07-26 2012-01-26 Osram Gesellschaft mit beschränkter Haftung Hochdruckentladungslampe mit Zündhilfe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4721888A (en) 1984-12-27 1988-01-26 Gte Laboratories Incorporated Arc discharge lamp with ultraviolet enhanced starting circuit
US4987344A (en) 1990-02-05 1991-01-22 Gte Products Corporation Arc discharge lamp with internal starter
US5811933A (en) 1996-07-11 1998-09-22 U.S. Philips Corporation High-pressure discharge lamp
US6919686B2 (en) 2002-01-09 2005-07-19 Ushiodenki Kabushiki Kaisha Discharge lamp having an auxiliary light source to produce light with a short wavelength
WO2010119793A1 (fr) 2009-04-17 2010-10-21 岩崎電気株式会社 Dispositif de source de lumière
WO2010131574A1 (fr) 2009-05-14 2010-11-18 岩崎電気株式会社 Dispositif de source de lumière

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013014243A1 (fr) * 2011-07-28 2013-01-31 Osram Ag Lampe à décharge à haute intensité dotée d'un dispositif d'aide à l'amorçage
US10269551B2 (en) 2011-07-28 2019-04-23 Ledvance Gmbh High-pressure discharge lamp having an ignition aid

Also Published As

Publication number Publication date
EP2469579A3 (fr) 2013-03-27
US20120161622A1 (en) 2012-06-28
CN102569004A (zh) 2012-07-11
DE102010064040A1 (de) 2012-06-28

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