EP0612098B1 - Lampe à décharge haute pression à culotage d'un seul cÔté - Google Patents

Lampe à décharge haute pression à culotage d'un seul cÔté Download PDF

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Publication number
EP0612098B1
EP0612098B1 EP94101735A EP94101735A EP0612098B1 EP 0612098 B1 EP0612098 B1 EP 0612098B1 EP 94101735 A EP94101735 A EP 94101735A EP 94101735 A EP94101735 A EP 94101735A EP 0612098 B1 EP0612098 B1 EP 0612098B1
Authority
EP
European Patent Office
Prior art keywords
base
lamp
pressure discharge
discharge lamp
discharge 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.)
Expired - Lifetime
Application number
EP94101735A
Other languages
German (de)
English (en)
Other versions
EP0612098A1 (fr
Inventor
Hartmuth Bastian
Karl-Heinz Gleixner
Achim Gosslar
Ulrich Dr. Henger
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 EP0612098A1 publication Critical patent/EP0612098A1/fr
Application granted granted Critical
Publication of EP0612098B1 publication Critical patent/EP0612098B1/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
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/366—Seals for leading-in conductors
    • H01J61/368—Pinched seals or analogous seals
    • 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
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space

Definitions

  • the invention relates to a high-pressure discharge lamp with a base on one side, according to the preamble of protective claim 1.
  • Such a high-pressure discharge lamp with a base on one side is disclosed, for example, in US Pat. No. 4,859,899.
  • This lamp has an outer bulb in which a discharge vessel, which is surrounded by a cylindrical, translucent glass envelope, is held by means of a metallic lamp frame.
  • the envelope body has open ends. It acts as a heat accumulation tube and is also carried by the lamp frame.
  • a disadvantage of this arrangement is that additional retaining clips are required to attach this thermal pitot tube to the lamp frame.
  • the high-pressure discharge lamps according to the invention with a base on one side have a tubular envelope made of glass, which coaxially surrounds the discharge vessel over its entire length.
  • the ends of the enveloping body are crimped over the lamp current leads protruding from the discharge vessel.
  • the envelope body is fixed at its ends and a better heat accumulation effect is achieved in the immediate vicinity of the discharge vessel. No additional holding parts for the enveloping body are required.
  • at least one of the lamp current feeds in the region of the envelope body crimp is advantageously provided with a flattening, a bend or a transverse bracket.
  • a pump-off cannula which is embedded in one of the squeezing ends of the enveloping body, enables problem-free evacuation of the interior of the enveloping body.
  • FIG. 1 shows a first exemplary embodiment of a high-pressure discharge lamp based on one side and according to the invention. It has an essentially rotationally symmetrical outer bulb 1, which has a screw base 2 and a plate base melt 3 at one end. Inside the outer bulb 1 there is a bilaterally sealed, axially aligned discharge vessel 4 made of quartz glass, in which an ionizable filling and two electrodes 5 are enclosed gas-tight.
  • the discharge vessel 4 has a base-near 4a and a base-distant 4b pinch seal, each with a melted-in molybdenum foil 6, each of which is electrically conductively connected to one of the electrodes 5.
  • a lamp power supply 7 made of molybdenum is led out of the pinch seals 4a, 4b of the discharge vessel 4 and is electrically conductively connected to the corresponding molybdenum foil 6.
  • the two lamp power supplies 7 are each with a separate bracket 8a, 8b of the metallic lamp frame welded. Both lamp frame brackets 8a, 8b are melted into the base 3 of the plate.
  • the frame bracket 8b which is welded to the lamp current supply 7 protruding from the pinch seal 4b, runs partially parallel to the discharge vessel 4 and is fixed to a bulge 9 in the dome of the outer bulb 1.
  • the discharge vessel 4 is coaxially enclosed over its entire length by a cylindrical, transparent envelope 10.
  • the ends of this envelope body 10, which acts as a heat accumulation tube, are squeezed over the lamp current feeds 7, so that the discharge vessel 4 is arranged entirely within the envelope body 10.
  • the envelope body 10 is held by the lamp power supply 7.
  • the lamp current feeds 7 are each provided with a flat 7a.
  • a pumping-off cannula 12 is melted into the pinch of the enveloping body 10 near the base, which facilitates the evacuation of the enveloping body.
  • the frame bracket 8b led to the outer bulb 9 carries a getter 13.
  • FIGS. 2a, 2b show two cross sections oriented perpendicular to one another through the pinch 11 of the enveloping body 10 facing the base 2 in accordance with the first exemplary embodiment.
  • the second exemplary embodiment (FIG. 3) of the high-pressure discharge lamp according to the invention which is capped on one side differs from the first exemplary embodiment explained above only in that the lamp current leads 7 'have a V-like bend 7a' in the area of the crimping ends 11 here instead of a flat 7a.
  • the two exemplary embodiments are the same in all other details.
  • the bruises at the ends of the enveloping body 10 do not necessarily have to extend over the entire diameter of the enveloping body 10. It is sufficient to squeeze the ends in the immediate vicinity of the lamp current leads 7 in order to fix the enveloping body 10 to these lamp current leads, as is shown in FIGS. 4 and 5, according to a third exemplary embodiment. Then the enveloping body ends have non-crushed areas 14 on both sides of their pinch 11 '(FIG. 5). In these uncrushed areas 14, the ends of the enveloping body are open, so that the interior spaces of the enveloping body 10 and the outer bulb 1 are connected to one another. In all other details, this third embodiment corresponds to the first.
  • the invention is not limited to the exemplary embodiments explained in more detail above.
  • the pump-off cannula of the first exemplary embodiment can also be replaced by a pump stem or an opening in the wall of the enveloping body.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Claims (7)

  1. Lampe à décharge haute pression à culot d'un côté, constituée d'
    - une enceinte de décharge (4) fermée de façon étanche des deux côtés et dans laquelle sont disposées des électrodes (5) , qui sont reliées d'une manière électriquement conductrice à des entrées de courant (7,7') de la lampe, qui sortent de l'enceinte de décharge (4),
    - un remplissage ionisable enfermé, d'une manière étanche au gaz, dans l'enceinte de décharge de décharge (4),
    - une ampoule extérieure (1), dans laquelle l'enceinte de décharge (4) est retenue au moyen d'un châssis (8a, 8b),
    - une enveloppe de forme tubulaire (10) en verre, qui est disposée à l'intérieur de l'ampoule extérieure (1) dans une position coaxiale à l'enceinte de décharge (4) et entoure cette dernière sur toute sa longueur,
    caractérisée par le fait que les extrémités de l'enveloppe (10) sont pourvues de pincements (11,11'), à l'aide desquels l'enveloppe (10) est fixée aux entrées de courant (7,7') de la lampe.
  2. Lampe à décharge haute pression à culot d'un côté suivant la revendication 1, caractérisée par le fait que les pincements (11) s'étendent sur le diamètre complet des extrémités de l'enveloppe et la ferment.
  3. Lampe à décharge haute pression à culot d'un côté suivant la revendication 1, caractérisée par le fait que les extrémités de l'enveloppe comportent des parties non pincées (14), par l'intermédiaire desquelles les espaces intérieurs de l'enveloppe (10) et de l'ampoule extérieure (1) communiquent entre eux.
  4. Lampe à décharge haute pression à culot d'un côté suivant la revendication 1, caractérisée par le fait qu'au moins l'une des entrées de courant (7) de la lampe possède un méplat (7a) dans la zone du pincement (11,11').
  5. Lampe à décharge haute pression à culot d'un côté suivant la revendication 1, caractérisée par le fait qu'au moins l'une des entrées de courant (7') de la lampe possède, dans la zone du pincement (11), une partie coudée (7a') située dans le plan du pincement.
  6. Lampe à décharge haute pression à culot d'un côté suivant la revendication 5, caractérisée par le fait que les deux entrées de courant (7') de la lampe possèdent, dans la zone des pincements (11), une partie (7a') en forme de V, qui est située dans le plan du pincement.
  7. Lampe à décharge haute pression à culot d'un côté suivant les revendications 1 et 2, caractérisée par le fait que l'enveloppe (10) possède une canule de vidage par pompage (12), qui est enchâssée dans l'un des pincements (11).
EP94101735A 1993-02-18 1994-02-04 Lampe à décharge haute pression à culotage d'un seul cÔté Expired - Lifetime EP0612098B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9302382U DE9302382U1 (de) 1993-02-18 1993-02-18 Einseitig gesockelte Hochdruckentladungslampe
DE9302382U 1993-02-18

Publications (2)

Publication Number Publication Date
EP0612098A1 EP0612098A1 (fr) 1994-08-24
EP0612098B1 true EP0612098B1 (fr) 1996-04-17

Family

ID=6889587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94101735A Expired - Lifetime EP0612098B1 (fr) 1993-02-18 1994-02-04 Lampe à décharge haute pression à culotage d'un seul cÔté

Country Status (4)

Country Link
US (1) US5453654A (fr)
EP (1) EP0612098B1 (fr)
JP (1) JP3001186U (fr)
DE (2) DE9302382U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1143485A3 (fr) * 2000-04-03 2001-11-14 Matsushita Electric Industrial Co., Ltd. Lampes à décharge, procédé pour leur fabrication et unité de lampe
US6844676B2 (en) * 2001-10-01 2005-01-18 Koninklijke Philips Electronics N.V. Ceramic HID lamp with special frame wire for stabilizing the arc
JP4130842B2 (ja) * 2006-05-31 2008-08-06 松下電器産業株式会社 金属蒸気放電ランプ及び照明装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0773001B2 (ja) * 1985-10-18 1995-08-02 東芝ライテック株式会社 投光光源装置
US4839565A (en) * 1987-04-03 1989-06-13 General Electric Company High pressure double wall sodium arc tube and methods of operating such
US4859899A (en) * 1987-05-07 1989-08-22 Gte Products Corporation Metal-halide lamp having heat redistribution means
US4791334A (en) * 1987-05-07 1988-12-13 Gte Products Corporation Metal-halide lamp having heat redistribution means
US5055735A (en) * 1989-01-30 1991-10-08 U.S. Philips Corporation High pressure discharge lamp having improved containment structure
US5136204A (en) * 1989-12-11 1992-08-04 Gte Products Corporation Metal halide arc discharge lamp assembly
CA2042143A1 (fr) * 1990-06-27 1991-12-28 John J. Biel Lampe a decharge a protection peripherique et methode de fabrication connexe
US5128589A (en) * 1990-10-15 1992-07-07 General Electric Company Heat removing means to remove heat from electric discharge lamp
US5253153A (en) * 1992-09-16 1993-10-12 General Electric Company Vehicle headlamp comprising a metal-halide discharge lamp including an inner envelope and a surrounding shroud

Also Published As

Publication number Publication date
JP3001186U (ja) 1994-08-23
DE59400200D1 (de) 1996-05-23
EP0612098A1 (fr) 1994-08-24
US5453654A (en) 1995-09-26
DE9302382U1 (de) 1993-04-15

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