EP0219860A2 - Méthode de fabrication d'une lampe à décharge à haute pression à halogénures de métal à pincement unique et une lampe fabriquée suivant cette méthode - Google Patents

Méthode de fabrication d'une lampe à décharge à haute pression à halogénures de métal à pincement unique et une lampe fabriquée suivant cette méthode Download PDF

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Publication number
EP0219860A2
EP0219860A2 EP86114647A EP86114647A EP0219860A2 EP 0219860 A2 EP0219860 A2 EP 0219860A2 EP 86114647 A EP86114647 A EP 86114647A EP 86114647 A EP86114647 A EP 86114647A EP 0219860 A2 EP0219860 A2 EP 0219860A2
Authority
EP
European Patent Office
Prior art keywords
pinch
power supply
supply lines
metal halide
circular
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.)
Granted
Application number
EP86114647A
Other languages
German (de)
English (en)
Other versions
EP0219860B1 (fr
EP0219860A3 (en
Inventor
Alexander Dobrusskin
Achim Gosslar
Jürgen Dr. Heider
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 EP0219860A2 publication Critical patent/EP0219860A2/fr
Publication of EP0219860A3 publication Critical patent/EP0219860A3/de
Application granted granted Critical
Publication of EP0219860B1 publication Critical patent/EP0219860B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01J9/32—Sealing leading-in conductors
    • H01J9/323—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device
    • H01J9/326—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device making pinched-stem 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
    • H01J61/36—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

Definitions

  • the invention relates to a method for producing a metal halide high-pressure discharge lamp pinched on one side, the vessel seal of which is designed as a pinch, from which two outer current leads are led out and two inner current leads, which are provided with electrodes, protrude into the discharge vessel, the electrical connection between the outer current leads and the associated internal power supply is made by means of parallel sealing foils, which are embedded parallel to one another and in one plane within the pinch, in which the following operations are carried out essentially in succession: - attaching a pump tube to a circular cylindrical tube, Introduction of prefabricated electrode systems, consisting of the outer power supply lines, the sealing foils and the inner power supply lines with the electrodes, into the circular cylindrical tube, the sealing foils being arranged in the part of the circular cylindrical tube facing away from the pump tube, - producing the pinch in the area of the sealing foils, the width of the pinch being approximately the same size as the diameter of the circular-cylindrical tube, and - Introduce the desired filling into the discharge vessel and melt the pump tube.
  • sealing foils made of molybdenum are used instead of wire-shaped current leadthroughs in halogen incandescent and metal halide high-pressure discharge lamps.
  • their geometric size and thus also the size of the pinch in which the sealing foils are embedded also decrease.
  • metal halide high-pressure discharge lamps there is also the need that a high voltage of at least 6 kV s must be applied to ignite the lamp, depending on the cooling state of the lamp.
  • JP-GM 47-308 an incandescent lamp is known in which the sealing foils are each bent outwards within the pinch, for example by 90 °, as a result of which the distance between them is fastened external power supplies enlarged.
  • Such a treatment of the sealing foils which are only a few hundredths of a millimeter thick, is conceivably unfavorable, since their durability during current passage is thereby considerably reduced.
  • Another way of leading the external power leads out of the pinch is described in DE-OS 1 922 762.
  • the lamp is intended for use in an optical system. So that the luminous element can have a certain reference distance from the base end, the external power supply lines are led, for example, laterally out of the pinch, whereby the length of the pinch can subsequently be changed and adapted to the optical system.
  • the present invention has for its object to design the pinch of the lamps in such a way that on the one hand the necessary width of the sealing foils can be used and on the other hand the ignition high voltage of at least 6 kV s required to ignite the lamp can be applied in particular to discharge lamps.
  • the lead-out of the external power supply lines from the pinch is to be made simpler in order to enable more cost-effective production.
  • the pre-squeezed end of the discharge vessel can additionally be provided with slots on its narrow side surfaces.
  • a widened pinch is obtained, which is the prerequisite for an increased distance between the external power supply lines.
  • the outer power supply lines are fastened to the parallel sealing foils in such a way that their longitudinal axes form a right angle with one another.
  • the external power supplies themselves can be led out of the pinch either on the narrow side faces of the pinch or on the end face facing away from the discharge vessel, in the latter case being angled within the pinch.
  • FIGS. 1a and 1b show a circular-cylindrical quartz tube 1, to which a pump tube 2 is attached at the end, in the main and side view (viewed from the right).
  • the end 3 of the quartz tube 1 facing away from the pump tube 2 is pre-squeezed, as a result of which this has an elongated, round cross-sectional shape, the larger diameter of which is increased by this process compared to the original diameter.
  • the remaining part 4 of the quartz tube 1 facing the pump tube forms the future discharge vessel and in doing so maintains its circular shape.
  • the finished lamp 5 is shown in Figure 1e.
  • the two electrode systems were introduced into the pre-squeezed part 3, each consisting of an outer power supply 6, an inner power supply 7 made of tungsten, which is designed as a hook-shaped electrode 8 with its end located in the discharge vessel 4 ', and one the outer one Power supply 6 and the inner power supply 7 connecting sealing film 9 consist of molybdenum.
  • a second squeezing process produces the final vessel seal in the form of a squeeze, the width of which is brought approximately to the original dimension of the circular-cylindrical tube 1 and thus the outer diameter of the discharge vessel 4 '.
  • the discharge vessel 4 ' was provided with the desired filling and the remaining one Pump tube 2 melted, leaving only one pump tip 2 '.
  • the outer power supply lines 6 are welded to the ends of the parallel sealing films 9 forming a right angle and angled downward within the pinch 3 'so that they run parallel to the pinch 3' on the end face 10 facing away from the discharge vessel 4 ' leave.
  • FIG. 2a follows the method step described in FIG. 1d and corresponds to the top view of FIG. 1d.
  • the pre-squeezed part 3 is provided with additional slots 12 on each narrow side surface 11.
  • the electrode systems which, as in the previous example, consist of the outer current leads 6 ', the inner current leads 7 made of tungsten with the electrodes 8 and the sealing films 9 running in parallel made of molybdenum, are introduced into these slots 12 before the final squeezing process which seals the discharge space 4'.
  • the outer power supply lines 6' are led out of the pinch 3 '' laterally at right angles to the longitudinal axis of the lamp. They can then be angled downwards outside the pinch 3 '' (FIG. 2b) or left straight (FIG. 2c). This results in the first embodiment, an additionally increased high-voltage strength of the lamp. This is particularly the case with the hot ignition of discharge lamps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
EP86114647A 1985-10-24 1986-10-22 Méthode de fabrication d'une lampe à décharge à haute pression à halogénures de métal à pincement unique et une lampe fabriquée suivant cette méthode Expired - Lifetime EP0219860B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853537878 DE3537878A1 (de) 1985-10-24 1985-10-24 Verfahren zur herstellung einer einseitig gequetschten metallhalogenidhochdruckentladungslampe und eine nach diesem verfahren hergestellte lampe
DE3537878 1985-10-24

Publications (3)

Publication Number Publication Date
EP0219860A2 true EP0219860A2 (fr) 1987-04-29
EP0219860A3 EP0219860A3 (en) 1989-05-03
EP0219860B1 EP0219860B1 (fr) 1992-06-17

Family

ID=6284381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86114647A Expired - Lifetime EP0219860B1 (fr) 1985-10-24 1986-10-22 Méthode de fabrication d'une lampe à décharge à haute pression à halogénures de métal à pincement unique et une lampe fabriquée suivant cette méthode

Country Status (4)

Country Link
US (1) US4739220A (fr)
EP (1) EP0219860B1 (fr)
JP (1) JPH0656736B2 (fr)
DE (2) DE3537878A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232812A (en) * 1989-03-14 1990-12-19 Narva Veb Leads for a discharge lamp
EP0591777A3 (fr) * 1992-10-05 1995-05-24 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Méthode de fabrication d'une lampe à décharge à haute pression de faible puissance à pincement unique et lampes à décharge à haute pression.

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998036A (en) * 1987-12-17 1991-03-05 Kabushiki Kaisha Toshiba Metal vapor discharge lamp containing an arc tube with particular bulb structure
US5037342A (en) * 1988-11-15 1991-08-06 Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen M.B.H. Method of making an electric lamp, and more particularly a lamp vessel in which electrodes are retained in the lamp by a pinch or press seal
EP0381035B1 (fr) * 1989-01-31 1994-08-03 Toshiba Lighting & Technology Corporation Lampe à décharge à vapeur métallique à scellement unique
DE102004058727A1 (de) * 2004-12-06 2006-06-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Stromzuführungssystem für eine Lampe mit diesem Stromzuführungssystem

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6806902A (fr) * 1968-05-16 1969-11-18
GB1442497A (en) * 1974-03-01 1976-07-14 Thorn Electrical Ind Ltd Discharge lamps
JPS563964A (en) * 1979-06-22 1981-01-16 Mitsubishi Electric Corp High-pressure metal vapor discharge lamp
US4396857A (en) * 1980-07-01 1983-08-02 General Electric Company Arc tube construction
CA1176687A (fr) * 1981-06-06 1984-10-23 Robert Hall Culot a deux broches pour lampe a decharge monoculot
US4512488A (en) * 1982-05-27 1985-04-23 The United States Of America As Represented By The Secretary Of The Army Sealing tubulation and method
US4668204A (en) * 1984-05-04 1987-05-26 Gte Products Corporation Single-ended high intensity discharge lamp and manufacture
JPH0719000B2 (ja) * 1986-09-05 1995-03-06 松下電器産業株式会社 マトリクス表示装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232812A (en) * 1989-03-14 1990-12-19 Narva Veb Leads for a discharge lamp
EP0591777A3 (fr) * 1992-10-05 1995-05-24 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Méthode de fabrication d'une lampe à décharge à haute pression de faible puissance à pincement unique et lampes à décharge à haute pression.
US5528101A (en) * 1992-10-05 1996-06-18 Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen Mbh Single-ended low-power discharge lamp, and method of its manufacture

Also Published As

Publication number Publication date
DE3685714D1 (de) 1992-07-23
JPH0656736B2 (ja) 1994-07-27
EP0219860B1 (fr) 1992-06-17
JPS62100930A (ja) 1987-05-11
EP0219860A3 (en) 1989-05-03
DE3537878A1 (de) 1987-04-30
US4739220A (en) 1988-04-19

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