EP2306492A1 - Lampe à décharge haute pression dotée d'une aide à l'allumage capacitive - Google Patents

Lampe à décharge haute pression dotée d'une aide à l'allumage capacitive Download PDF

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Publication number
EP2306492A1
EP2306492A1 EP10172916A EP10172916A EP2306492A1 EP 2306492 A1 EP2306492 A1 EP 2306492A1 EP 10172916 A EP10172916 A EP 10172916A EP 10172916 A EP10172916 A EP 10172916A EP 2306492 A1 EP2306492 A1 EP 2306492A1
Authority
EP
European Patent Office
Prior art keywords
discharge lamp
pressure discharge
discharge vessel
lamp according
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Withdrawn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
EP10172916A
Other languages
German (de)
English (en)
Inventor
Johannes Buttstaedt
Stefan Dunkel
Leon Grabinski
Janbernd Hentschel
Martin Tüshaus
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 EP2306492A1 publication Critical patent/EP2306492A1/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Withdrawn legal-status Critical Current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
    • H01J61/02—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 high-pressure discharge lamp according to the preamble of claim 1.
  • Such lamps are in particular high-pressure discharge lamps for general lighting or for photo-optical purposes.
  • a high-pressure discharge lamp with discharge vessel is known in which a starting aid is designed as a winding around one end of the discharge vessel.
  • the object of the present invention is to provide a high-pressure discharge lamp whose ignition is ensured by simple inexpensive means.
  • the material of the discharge vessel may be ceramic or quartz glass.
  • the invention relates to high-pressure discharge lamps with a discharge vessel made of quartz glass or ceramic, with or without outer bulb. Especially affected are discharge lamps for general lighting, which usually have an evacuated or gas-filled outer bulb and are designed for life of 6000h or more.
  • Such high-pressure discharge lamps are started by means of special ignitors.
  • the ignition characteristics of these ignitors are defined by appropriate standards.
  • the conditions in the discharge vessel (volume, electrode gap, filling gas, filling pressure, quantity of mercury, quantity and type of metal halides) must be coordinated so that the lamp safely ignites at the specified ignition conditions.
  • the disclosure of the invention describes a solution which ensures reliable ignition for high-pressure discharge lamps.
  • the current arrangement takes up the principle of dielectrically impeded discharge, but simplifies it decisively.
  • Both electrodes are capacitively coupled together outside the discharge vessel.
  • electrically conductive components behind the one and the other electrode form and / or non-positively externally attached to the discharge vessel or melting, pinch or capillary and electrically conductively connected from one to the other electrode side. It is essential that no direct electrical contact is made to either of the two electrodes or power supply lines.
  • the components in the area behind the electrodes cover a large area and rest as closely as possible on the discharge vessel, capillary or meltdown.
  • the connection from one end of the discharge vessel to the other is preferably made with the smallest possible component, e.g. a thin wire, made to avoid shading the light emission.
  • Technical embodiments are e.g. a wire made of nickel, niobium, molybdenum, tungsten or similar heat-resistant, electrically conductive material, which is wound behind the one electrode around the discharge vessel.
  • the wire is stretched over the discharge vessel to the other electrode and there also wound around the electrode around the discharge vessel or capillary or melting.
  • the windings can be symmetrical or asymmetrical. Preferred is an asymmetric winding.
  • a sleeve made of foil or sheet can be placed around the two ends of the discharge vessel or the capillary and welded.
  • the slides on both sides are made by means of a wire or connected to a thin foil strip.
  • Preference is given to a film, in particular a molybdenum foil as used for the melting, since it has a high flexibility and temperature resistance.
  • a clip is inserted, which is pushed over the meltdown or capillary.
  • the clip can be designed as a spring element, so that a non-positive connection is possible. It is advantageous to form a groove, flattening or other specific retaining aid on the capillary or sealing, into which the clip is fitted in a form-fitting manner.
  • An ignition of aged lamps is ensured as well as the ignition of just switched off lamps (hot re-ignition).
  • a starting aid which is electrically connected to one of the two electrodes or power supply, it can come in the hot re-ignition to a several-minute discharge between the electrode and ignition aid.
  • the discharge vessel is practically short-circuited in this case. This effect is avoided by a non-contacted ignition aid, since the dielectrically impeded discharge occurs at both electrodes and thus leads to a breakdown between the electrodes.
  • the starting aid according to the invention is insulated from the two electrodes, no electrical charge can flow out of the components of the starting aid. Thus, the mechanism that leads to sodium leakage from the burner, effectively prevented.
  • a directly contacted ignition aid causes a more or less pronounced sodium discharge during the lamp burning period, as has often been observed.
  • the formation of the ignition aid as a clip or foil behind the electrode additionally offers the possibility of dispensing with the normally customary reflector.
  • the ignition aid covers the area behind the electrodes, which is otherwise covered by the reflector.
  • the metallic surface of the ignition aid reflects the radiation in the area behind the electrode and provides additional heating of this area.
  • it may be favorable to carry out the surface of the ignition aid directed toward the discharge vessel in a frosted manner (for example sandblasted or ground).
  • FIG. 1 schematically shows the basic structure of a high-pressure discharge lamp 1 with ignition aid. It has a discharge vessel 2 made of ceramic, possibly also made of quartz glass, which is housed in an outer bulb 3.
  • the outer leads 4 of the discharge vessel, which contact electrodes inside, are connected to two frame wires 5 and 6.
  • a short frame wire 5 leads to a first foil 7 in a pinch 8 of the outer bulb.
  • the discharge vessel 2 has at its ends in each case a capillary 10, as known per se, and a filling of an ionizable gas, usually argon or Xenon, mercury and metal halides, also known per se.
  • Two electrodes are located in the interior of the discharge vessel, as also known per se, and not shown here.
  • An ignition aid 11 in the form of a film is placed in each case as a sleeve around the two capillaries of the discharge vessel and connected together via a primer 15, this may be a coating or a sintered material, as taken in itself known.
  • FIG. 2 shows as ignition aid 11 a symmetrical wire winding with 2-3 windings per side.
  • the two winding parts 12 and 13 on the two bruises or melts of the discharge vessel 2 made of quartz glass are via a wire 16 or other conductor, the extends over the bulbous middle part of the discharge vessel, connected to each other.
  • FIG. 3 shows a similar system in which the wire windings are designed asymmetrically.
  • the wire windings are designed asymmetrically.
  • These two winding parts 21 and 22 are again connected via a primer or wire 23.
  • the ratio of the number of turns of the winding should preferably be 2: 1 to 4: 1.
  • FIG. 4 shows a discharge vessel 2 made of quartz glass, in which at the ends of the bulbous discharge vessel foil strips 25 are wound as dome around the ends of the discharge vessel and connected to wire 26.
  • This exemplary embodiment makes sense precisely when a reflector at the ends is to be used anyway in the case of quartz glass discharge vessels. Because the films have additional reflective properties.
  • FIG. 5 shows a discharge vessel 2 made of quartz glass, in which the ignition aid is a clip 30 at both seals, seals or bruises, which is pushed laterally over the melt 32 shown here.
  • FIG. 6 shows a cross section at the location of the clip 30. The two clips are connected to a wire 31. This embodiment is equally well suited for discharge vessels made of quartz or ceramic.
  • the cross section of the FIG. 6 shows a seal (round cross section) with flattening 33, so that a particularly good fit of the clip 30 is made possible.
  • the melting can also do without flattening and the clip is a C-shaped bent circle of spring steel.
  • an asymmetric embodiment can be realized in that the width of the clips or a film is chosen differently on the two seals. Alternatively or additionally, the length of the clips or foils can be chosen differently.
  • the design rule is preferably analogous to FIG. 3 explained.
  • FIGS. 7 to 9 shows a clip variant at discharge vessel 36 made of quartz glass with pinch 37.
  • These are two clips 35 made of spring steel, which are pushed onto the pinch 37 and are connected to each other via a wire 38.
  • the spring plate clip 35 has a central hole 39 whose contour is adapted to the double T-shape of the pinch.
  • Two tongues 40 are each supported centrally on the broad sides of the pinch and act in a fixed manner in cooperation with two barbs 41 acting on the narrow sides of the pinch.
  • FIG. 10 and the detail FIGS. 11 and 12 show a high-pressure discharge lamp with a discharge vessel made of quartz glass, which is closed on two sides with a pinch. Again, two clips 35 are pushed onto the bruises and connected to each other via a wire 38. A pronounced asymmetry of the induced electric field strength is achieved in that an approximately rectangular plate 45, 46 of thin sheet metal is placed on the two broad sides of each pinch.
  • the plate 45, 46 is respectively clamped by the clip 35 in the direction of the pinch, or it may also be made integral with the clip. In this case, on a first side, the plate 45 a possible small area on.
  • the width of the plate 45 is approximately adapted to the width of the pinch 37.
  • the axial length of the plate 45 is relatively short, but it should preferably be at least 2 mm.
  • the area of the platelets 46 on the second pinch 37 should be chosen to be significantly larger, preferably at least three times as large. The platelet can last in particular until the end of the bruise.
  • each plate 45, 46 should be as close as possible to the discharge volume of the discharge vessel. This is ensured by the fact that a small portion 47 of the plate reaches from the pinch to at least the exit point of the electrode shaft.
  • the plate 45, 46 may even be angled outwardly at its short end in the region of the small part 47, so that it is guided along the discharge volume over a certain distance d.
  • the plate 46 anchored there is approximately four times as long axially as on the first pinch.
  • the tile is according to FIG. 11 pressed by a tab on the broad side of the clip to the pinch.
  • the plate 45, 46 may be made of stainless steel, Mo, or Ni, or of another sheet, the temperatures up to about 600 ° C well tolerated.
  • FIG. 13 shows an embodiment of a cantilever high-pressure discharge lamp 50.
  • a clip 51 is used, which is crimped on a narrow side 52 of the single pinch 37 of the discharge vessel 53.
  • For the crushing 37 is preferably designed I-shaped or double-T-shaped.
  • a short distance (distance D1) on the broad side 54.
  • a metal strip 55 of the clip which is parallel to the axis covers the area of the first, the clip adjacent power supply 57 or film from, wherein a first tongue 58 with a width B1 extends to the edge of the discharge volume.
  • a thin web 60 Arranged transversely to the strip is a thin web 60 which ends at a second tongue 59, which sits in the discharge volume in the region of the entry of the second electrode system 61.
  • This second tongue 59 usually has the same or even a smaller width as the first tongue, or even a greater width B2 than the first tongue as shown here. It is essential that an asymmetry of the respectively induced on the associated electrode electric field is generated here.
  • the base body of the clip is preferably realized only by two yokes 64, which connect the metal strips 55 on both sides of the pinch 37 together.
  • the base body can also be designed differently.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
EP10172916A 2009-09-30 2010-08-16 Lampe à décharge haute pression dotée d'une aide à l'allumage capacitive Withdrawn EP2306492A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009047861A DE102009047861A1 (de) 2009-09-30 2009-09-30 Hochdruckentladungslampe mit kapazitiver Zündhilfe

Publications (1)

Publication Number Publication Date
EP2306492A1 true EP2306492A1 (fr) 2011-04-06

Family

ID=43379051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10172916A Withdrawn EP2306492A1 (fr) 2009-09-30 2010-08-16 Lampe à décharge haute pression dotée d'une aide à l'allumage capacitive

Country Status (5)

Country Link
US (1) US8227990B2 (fr)
EP (1) EP2306492A1 (fr)
JP (1) JP2011077035A (fr)
CN (1) CN102034669B (fr)
DE (1) DE102009047861A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011103945U1 (de) 2011-08-01 2011-11-03 Osram Ag Hochdruckentladungslampe mit Zündhilfe
US8659225B2 (en) 2011-10-18 2014-02-25 General Electric Company High intensity discharge lamp with crown and foil ignition aid
US8766518B2 (en) 2011-07-08 2014-07-01 General Electric Company High intensity discharge lamp with ignition aid

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4846856B2 (ja) * 2010-03-03 2011-12-28 パナソニック株式会社 高輝度放電ランプ
DE102011077487A1 (de) 2011-06-14 2012-12-20 Osram Ag Hochdruckentladungslampe mit Zündhilfe
JP2021086670A (ja) * 2019-11-26 2021-06-03 ウシオ電機株式会社 ショートアーク型放電ランプ

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0922296A1 (fr) 1997-04-22 1999-06-16 Koninklijke Philips Electronics N.V. LAMPE A DECHARGE HAUTE PRESSION AVEC RENFORçATEUR
EP0967631A1 (fr) 1998-06-24 1999-12-29 Osram Sylvania Inc. Déclenchement d'une décharge lumineuse dans un appareil de décharge à haute intensité, l'appareil étant en matériau céramique
US6268698B1 (en) 1998-12-04 2001-07-31 Osram Sylvania Inc. Capacitive glow starting of high intensity discharge lamps
US20030062831A1 (en) * 2001-10-01 2003-04-03 Alderman John C. Ceramic HID lamp with special frame wire for stabilizing the arc
US20040119412A1 (en) * 2002-12-18 2004-06-24 Ushiodenki Kabushiki Kaisha Discharge lamp of the short arc type
WO2004057644A1 (fr) * 2002-12-19 2004-07-08 Koninklijke Philips Electronics N.V. Lampe a decharge haute pression pourvue d'un joint comprenant une cavite remplie de gaz
WO2008154102A2 (fr) * 2007-06-06 2008-12-18 General Electric Company Virole d'assistance à l'allumage et de raccordement pour lampe à décharge

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US4010397A (en) 1975-10-30 1977-03-01 Hughes Aircraft Company Flashlamp triggering arrangements for pressurized gas cooled lasers
JPH0216557U (fr) * 1988-07-19 1990-02-02
US5661367A (en) * 1996-08-08 1997-08-26 Philips Electronics North America Corporation High pressure series arc discharge lamp construction with simplified starting aid
JP3208087B2 (ja) * 1997-04-18 2001-09-10 松下電器産業株式会社 メタルハライドランプ
US6631255B1 (en) 2000-06-28 2003-10-07 Northrop Grumman Corporation Multi-carrier receiver for a wireless telecommunication system
JP2003092080A (ja) * 2001-09-19 2003-03-28 Toshiba Lighting & Technology Corp 高圧放電ランプおよび照明装置
JP3528836B2 (ja) * 2002-01-09 2004-05-24 ウシオ電機株式会社 放電ランプ
AU2003215825A1 (en) * 2002-04-09 2003-10-20 Koninklijke Philips Electronics N.V. High-pressure discharge lamp
JP2003059456A (ja) * 2002-07-03 2003-02-28 Matsushita Electric Ind Co Ltd メタルハライドランプ
EP1901329A3 (fr) * 2002-09-13 2008-09-03 Matsushita Electric Industrial Co., Ltd. Procédé de fabrication d'une lampe à halogénures métallisés dotée d'une fonction pour la suppression des décharges anormales
JP2004193061A (ja) * 2002-12-13 2004-07-08 Japan Storage Battery Co Ltd メタルハライドランプ
DE102004056004A1 (de) 2004-11-19 2006-05-24 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Hochdruckentladungslampe
DE102005003129A1 (de) 2005-01-21 2006-07-27 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Hochdruckentladungslampe
DE102006007218A1 (de) * 2006-02-15 2007-08-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Hochdruckentladungslampe
JP2007280634A (ja) * 2006-04-03 2007-10-25 Stanley Electric Co Ltd 高圧放電灯
DE102006033871A1 (de) * 2006-07-21 2008-01-24 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Entladungslampe mit Zündhilfselement
DE102008013607B3 (de) * 2008-03-11 2010-02-04 Blv Licht- Und Vakuumtechnik Gmbh Quecksilberfreie Metallhalogenid-Hochdruckentladungslampe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0922296A1 (fr) 1997-04-22 1999-06-16 Koninklijke Philips Electronics N.V. LAMPE A DECHARGE HAUTE PRESSION AVEC RENFORçATEUR
EP0967631A1 (fr) 1998-06-24 1999-12-29 Osram Sylvania Inc. Déclenchement d'une décharge lumineuse dans un appareil de décharge à haute intensité, l'appareil étant en matériau céramique
US6198223B1 (en) 1998-06-24 2001-03-06 Osram Sylvania Inc. Capacitive glow starting of ceramic high intensity discharge devices
US6268698B1 (en) 1998-12-04 2001-07-31 Osram Sylvania Inc. Capacitive glow starting of high intensity discharge lamps
US20030062831A1 (en) * 2001-10-01 2003-04-03 Alderman John C. Ceramic HID lamp with special frame wire for stabilizing the arc
US20040119412A1 (en) * 2002-12-18 2004-06-24 Ushiodenki Kabushiki Kaisha Discharge lamp of the short arc type
WO2004057644A1 (fr) * 2002-12-19 2004-07-08 Koninklijke Philips Electronics N.V. Lampe a decharge haute pression pourvue d'un joint comprenant une cavite remplie de gaz
WO2008154102A2 (fr) * 2007-06-06 2008-12-18 General Electric Company Virole d'assistance à l'allumage et de raccordement pour lampe à décharge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8766518B2 (en) 2011-07-08 2014-07-01 General Electric Company High intensity discharge lamp with ignition aid
DE202011103945U1 (de) 2011-08-01 2011-11-03 Osram Ag Hochdruckentladungslampe mit Zündhilfe
WO2013017304A1 (fr) 2011-08-01 2013-02-07 Osram Ag Lampe à décharge à haute pression avec aide à l'amorçage
US9013103B2 (en) 2011-08-01 2015-04-21 Osram Gmbh High-pressure discharge lamp having a starting aid
US8659225B2 (en) 2011-10-18 2014-02-25 General Electric Company High intensity discharge lamp with crown and foil ignition aid

Also Published As

Publication number Publication date
CN102034669B (zh) 2015-09-30
US20110074285A1 (en) 2011-03-31
JP2011077035A (ja) 2011-04-14
US8227990B2 (en) 2012-07-24
CN102034669A (zh) 2011-04-27
DE102009047861A1 (de) 2011-03-31

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