WO2011069764A1 - Enceinte de décharge en céramique pour lampe à décharge haute pression - Google Patents

Enceinte de décharge en céramique pour lampe à décharge haute pression Download PDF

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Publication number
WO2011069764A1
WO2011069764A1 PCT/EP2010/067089 EP2010067089W WO2011069764A1 WO 2011069764 A1 WO2011069764 A1 WO 2011069764A1 EP 2010067089 W EP2010067089 W EP 2010067089W WO 2011069764 A1 WO2011069764 A1 WO 2011069764A1
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WO
WIPO (PCT)
Prior art keywords
discharge vessel
capillary
vessel according
discharge
face
Prior art date
Application number
PCT/EP2010/067089
Other languages
German (de)
English (en)
Inventor
Clemens Barthelmes
Peter Stadahl
Bernhard Freisinger
Andreas Hohlfeld
Original Assignee
Osram Gesellschaft mit beschränkter Haftung
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 Gesellschaft mit beschränkter Haftung filed Critical Osram Gesellschaft mit beschränkter Haftung
Publication of WO2011069764A1 publication Critical patent/WO2011069764A1/fr

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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
    • H01J61/30—Vessels; Containers
    • H01J61/33—Special shape of cross-section, e.g. for producing cool spot
    • 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
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
    • H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps

Definitions

  • the invention relates to a discharge vessel for ei ⁇ ne high pressure discharge lamp according to the preamble of claim 1. These are in particular high-pressure discharge Slam ⁇ pen with metal halide.
  • an elongated ceramic discharge vessel in which the stopper is shaped so that at the end of the discharge vessel, a groove runs around, in which the filling can condense.
  • US-B 6,175,188 discloses a ceramic discharge vessel ⁇ whose shape is bulged, but which additionally has a local bump, see FIG. 7 From DE 10 2007 061 515 a ceramic Entla ⁇ tion vessel is known, which is rounded and has local recesses for the condensate. It's all quite complicated ⁇ recently designed and therefore difficult to produce. The wells for the condensate are also designed so that they hold the condensate poorly.
  • An object of the present invention is to provide a ceramic discharge vessel which allows improved focusing of the cold spot.
  • the discharge vessel has at the corner line of the inner contour a bulge, which acts as a circumferential groove.
  • the middle part is cylindrical.
  • the end face which is normally flat, designed so that it is widened in a funnel shape and this funnel shape steadily merges into the Aus ⁇ buchtung, with a turning point between Kapilla ⁇ re and bulge is. This creates a broad-shouldered basin for the condensate.
  • the outlet of the capillary can also be sharp-edged, without a funnel.
  • the outlet of the capillary can also be cup-shaped in the sense of a spherical segment. In this case, there is a portion of the face that is flat. Only then is a relatively narrow-shouldered Aus ⁇ bucht scheduled.
  • the inner contour is strictly rectangular, as known per se and there is a rectangular depression at the outlet of the capillary.
  • this inner shape is known per se, it is not known in with an outer contour with tapered ends. An extra trough for the condensate is not required here ⁇ .
  • Such discharge vessel can be made very well integrally from one piece or from two symmetrical halves.
  • a multi-part embodiment is designed, for example, so that the outer contour of the discharge vessel is ku ⁇ gel-shaped or even with spherical segment-shaped ends is taltet-staltet. There are narrow-shouldered bulges at the ends, connected with a rectangular depression. This is formed by the fact that the capillaries are separate components that do not reach to the end face. Rather, the discharge vessel is designed here so that extends at the ends of a narrow collar axially parallel to the rear towards the capillary.
  • the separate capillary is basically tubular. It has a short section corresponds charge side, in which the outer diameter is reduced and ⁇ is just adapted to the inner diameter of the collar. Capillary and discharge vessel are preferably connected to each other by direct sintering. But it is also a seal using ceramic or glass solder possible.
  • the discharge vessel can also be constructed in several parts from symmetrical components, namely halves of the exemplary embodiment just described.
  • the halves are connected centrally via a seam by means of direct sintering , as known per se.
  • On a sink can be dispensed with.
  • the capillaries extend to the end face.
  • the outer contour can basically be designed isothermally, ie spherical or cylindrical with rounded ends, which in turn represent spherical segments. An elliptical contour is also possible.
  • the capillaries can be with or without a sink.
  • the depression may be funnel-shaped, cup-shaped or rectangular.
  • the depressions at the corners are preferably torus segments, which form circular segments in cross section.
  • the ceramic discharge vessel 20 is preferably made of Al 2 O 3 as known per se and may contain additives. Other ceramics such as sapphire, Dy203 or A1N can also be used.
  • Suitable fillers are known metal halide systems such as rare earth metal halides, sodium iodide, calcium iodide, thallium iodide etc. with or without mercury and noble gas.
  • the invention retains the curved outer contour.
  • the advantages of the cylindrical shape and the curved shape are combined. Regardless of the burning position, a defined cold spot arises.
  • FIG. 1 shows a ceramic discharge vessel according to the invention
  • Figure 7 is a reflector lamp with such discharge vessel ⁇ .
  • FIG. 1 shows a ceramic discharge vessel 1 for a metal halide lamp. This is example ⁇ example a 150 W lamp.
  • the burner ceramic 1 is composed of a cylindrical middle part 2 and two end sections or ends 3 together. Capillaries 4 attach integrally to the ends.
  • the discharge vessel itself is symmetrically composed of two parts, which are connected to one another at a central seam 7.
  • the discharge vessel has a rounded shape on the outside.
  • the middle part 2 is cylindrical with a ge ⁇ given diameter outside and inside.
  • the inner contour is designed very differently. It is substantially rectangular in cross-section and has over the length of the discharge volume substantially a constant inner diameter.
  • the capillary 4 opens in a funnel shape towards the discharge volume.
  • This funnel-shaped depression 5 opens into an end face, which finally merges into a turn off ⁇ book tung 6, which sits as a circumferential groove at the end of the inner wall.
  • FIG. 3 shows a further exemplary embodiment, in which the depression assigned to the capillary 4 is designed as a cup 11. This cup ends at a teilwei ⁇ se, namely present as a circular ring, end face 10. Outside, this ends again at a bulge 6.
  • Figure 4 shows a basic shape without bulge. Here, the usual corner 13 between the end face 10 and side wall 8 is present.
  • a depression 12 on the capillary is rectangular. However, the outer contour is rounded as explained above. In this case, the middle part 2 is cylindrical with a given diameter outside and inside. In the region of the ends 3, the outer contour tapers towards the capillaries 4 in a hemispherical manner.
  • FIG. 5 Another outer contour for a discharge vessel 1 shows the embodiment of FIG. 5.
  • the outer contour 20 spherical. At the ends of this contour is parallel to the axis bent into a collar 21 which extends a short distance in the direction of the capillary 4.
  • the Ka ⁇ pillare 4 itself is separate. In principle, it has a constant outer diameter, but in the vicinity of the collar 21, a short portion 22 is designed so that its outer diameter is reduced and is adapted from the inside just the inner diameter of the collar 21.
  • the rest has a larger outer diameter, so that a stop 24 for the capillary 4 in the direction of the collar 21 is formed.
  • the capillary is so short that it does not reach right up to the discharge volume, but leaves itself a disc-shaped depression 23, rectangular in cross-section.
  • the inner contour of the discharge volume is designed so that substantially a cylindrical Entla ⁇ tion volume is created, apart from the sink 23 and the bulges 6 at the corners.
  • the discharge vessel is in one piece.
  • FIG. 6 A similar embodiment is shown in FIG 6.
  • the Un ⁇ ter Kunststoff is only that the discharge vessel is in two pieces and is assembled from two halves 25 which are connected to each other over the seam. 7
  • the capillary 4 is drawn so long in the direction of discharge volume that it forms a flat surface, so that it is part of the end face 10 of the discharge vessel. Also here are bulges 6 available.
  • a complete reflector lamp 30 is shown in FIG 7.
  • the discharge vessel 1 in Figure 1 as an installation fixture is used ⁇ det. It is surrounded by an outer bulb 14 and supported by a frame 15. This is in turn surrounded by a cylindrical tube 35 as explosion protection. At a bruise of the outer bulb sits a base 17th
  • a reflector 34 is also attached. This consists of a reflector contour 18, an attached thereto in the direction of base 17 neck 19 and an opening 38. In the region of the opening, the end of the tube 35 is surrounded by a glare shield 39 with cap 16.
  • Suitable fillers are known metal halide systems such as rare earth metal halides, sodium iodide, calcium iodide, thallium iodide etc. with or without mercury and noble gas.
  • Essential features of the invention in the form of a nume ⁇ tured list are:
  • Discharge vessel for a high-pressure discharge lamp made of ceramic material, with a filling, which can form a condensate, receiving middle part, as well as with two ends, where capillaries sit ⁇ zen, wherein in the capillary electrode systems till ⁇ are sealed, characterized that the Ent ⁇ discharge vessel has an outer contour which is cylindrical be ⁇ area of the central portion, and tapering at the ends to the capillaries out while the inner contour is configured such that the central part inside has a cylindrical side wall ⁇ and towards the capillary towards a substantially ge ⁇ rade face.
  • Discharge vessel according to claim 1 characterized in that in the region of the meeting zwi ⁇ 's side wall and end face a circumferential bulge, which is capable of feeding condensate gee, is present.
  • Discharge vessel according to claim 1 characterized marked ⁇ characterized in that in the area where the capillary opens into the end face, a depression in the end face is present. 4. Discharge vessel according to claim 1, characterized marked ⁇ characterized in that the depression is funnel-shaped or cup-shaped.
  • Discharge vessel according to claim 1 characterized marked ⁇ characterized in that the outer contour of the central part is cylindrically or partially ellipsoidal or spherical.
  • Discharge vessel according to claim 1 characterized marked ⁇ characterized in that the ends taper as a segment of a sphere, an ellipsoid or paraboloid. 7. Discharge vessel according to claim 1, characterized marked ⁇ characterized in that the central part and the ends are manufactured einstü ⁇ ckig, wherein at each end a collar extends in the direction of a separate capillary into which a portion of the capillary is fitted, the has a reduced outer diameter.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

L'invention concerne une enceinte de décharge en céramique pour une lampe à décharge haute pression. L'enceinte de décharge en céramique présente un profil extérieur aux extrémités allant en s'amincissant et sur lesquelles sont situés des capillaires. En même temps, le profil intérieur est configuré de façon qu'une partie médiane soit cylindrique, et que les capillaires débouchent dans des surfaces frontales sensiblement planes.
PCT/EP2010/067089 2009-12-09 2010-11-09 Enceinte de décharge en céramique pour lampe à décharge haute pression WO2011069764A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009047753.5 2009-12-09
DE102009047753A DE102009047753A1 (de) 2009-12-09 2009-12-09 Entladungsgefäß aus Keramik für eine Hochdruckentladungslampe

Publications (1)

Publication Number Publication Date
WO2011069764A1 true WO2011069764A1 (fr) 2011-06-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/067089 WO2011069764A1 (fr) 2009-12-09 2010-11-09 Enceinte de décharge en céramique pour lampe à décharge haute pression

Country Status (2)

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DE (1) DE102009047753A1 (fr)
WO (1) WO2011069764A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335202A2 (fr) 1988-03-28 1989-10-04 TUNGSRAM Részvénytársaság Lampe à décharge à haute pression, en particulier lampe à vapeur de sodium à haute pression
EP0587238A1 (fr) 1992-09-08 1994-03-16 Koninklijke Philips Electronics N.V. Lampe à décharge à haute pression
US5936351A (en) 1996-11-07 1999-08-10 Osram Sylvania Inc. Ceramic discharge vessel
US6175188B1 (en) 1997-09-28 2001-01-16 Ushiodenki Kabushiki Kaisha Sealing body for a discharge lamp
US20030178941A1 (en) * 2002-03-20 2003-09-25 Matsushita Electric Industrial Co., Ltd. Metal halide lamp
US7063586B2 (en) * 2000-11-06 2006-06-20 General Electric Company Ceramic discharge chamber for a discharge lamp
EP1729324A2 (fr) * 2005-06-01 2006-12-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à haute-pression, ainsi que appareil et méthode pour la commande sur le mode de résonance longitudinal de la lampe à haute-pression.
DE202008007162U1 (de) * 2008-05-28 2008-08-07 Osram Gesellschaft mit beschränkter Haftung Hochdruckentladungslampe
DE102007061515A1 (de) 2007-12-20 2009-06-25 Osram Gesellschaft mit beschränkter Haftung Entladungsgefäß für eine Hochdruckentladungslampe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327535A1 (de) * 1993-08-16 1995-02-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe mit keramischem Entladungsgefäß
US6583563B1 (en) * 1998-04-28 2003-06-24 General Electric Company Ceramic discharge chamber for a discharge lamp
DE10222254A1 (de) * 2002-05-16 2003-11-27 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe mit keramischem Entladungsgefäß
US20080224615A1 (en) * 2004-03-31 2008-09-18 Masanori Higashi Metal Halide Lamp and Lighting Device Using This
DE102008026522A1 (de) * 2008-06-03 2009-12-10 Osram Gesellschaft mit beschränkter Haftung Hochdruckentladungslampe

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335202A2 (fr) 1988-03-28 1989-10-04 TUNGSRAM Részvénytársaság Lampe à décharge à haute pression, en particulier lampe à vapeur de sodium à haute pression
EP0587238A1 (fr) 1992-09-08 1994-03-16 Koninklijke Philips Electronics N.V. Lampe à décharge à haute pression
US5936351A (en) 1996-11-07 1999-08-10 Osram Sylvania Inc. Ceramic discharge vessel
US6175188B1 (en) 1997-09-28 2001-01-16 Ushiodenki Kabushiki Kaisha Sealing body for a discharge lamp
US7063586B2 (en) * 2000-11-06 2006-06-20 General Electric Company Ceramic discharge chamber for a discharge lamp
US20030178941A1 (en) * 2002-03-20 2003-09-25 Matsushita Electric Industrial Co., Ltd. Metal halide lamp
EP1729324A2 (fr) * 2005-06-01 2006-12-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à haute-pression, ainsi que appareil et méthode pour la commande sur le mode de résonance longitudinal de la lampe à haute-pression.
DE102007061515A1 (de) 2007-12-20 2009-06-25 Osram Gesellschaft mit beschränkter Haftung Entladungsgefäß für eine Hochdruckentladungslampe
DE202008007162U1 (de) * 2008-05-28 2008-08-07 Osram Gesellschaft mit beschränkter Haftung Hochdruckentladungslampe

Also Published As

Publication number Publication date
DE102009047753A1 (de) 2011-06-16

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