EP0374677A2 - Procédé de préparation d'une lampe à décharge à haute pression à deux culots - Google Patents

Procédé de préparation d'une lampe à décharge à haute pression à deux culots Download PDF

Info

Publication number
EP0374677A2
EP0374677A2 EP89122831A EP89122831A EP0374677A2 EP 0374677 A2 EP0374677 A2 EP 0374677A2 EP 89122831 A EP89122831 A EP 89122831A EP 89122831 A EP89122831 A EP 89122831A EP 0374677 A2 EP0374677 A2 EP 0374677A2
Authority
EP
European Patent Office
Prior art keywords
discharge vessel
tube
operations
lamp
producing
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
EP89122831A
Other languages
German (de)
English (en)
Other versions
EP0374677A3 (fr
EP0374677B1 (fr
Inventor
Jürgen Dr. Heider
Dieter Lang
Richard Kotschenreuther
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 EP0374677A2 publication Critical patent/EP0374677A2/fr
Publication of EP0374677A3 publication Critical patent/EP0374677A3/fr
Application granted granted Critical
Publication of EP0374677B1 publication Critical patent/EP0374677B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01J9/245—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 the manufacture of a lamp with the features specified in the main claim.
  • the invention relates in particular to the production of metal halide high-pressure discharge lamps with an electrical power consumption of at most 50 W, as have recently been increasingly proposed for the purpose of general lighting or for use in motor vehicle headlights.
  • Such lamps have hitherto been produced by first closing a quartz tube which is open on both sides and then forming the olive-shaped shape at the location of the future discharge vessel by collecting the quartz glass. Then the tube end, which was initially closed, is opened again in further work steps and a pump tube is attached to the center of the discharge vessel.
  • this object is achieved by the sequence of work steps set out in the main claim. Further details for the production of the metal halide high-pressure discharge lamps can be found in the subclaims.
  • the tube remains clamped in the pump head during the entire pumping, filling and squeezing process. The complicated insertion and removal is no longer necessary. A considerable reduction in the process time is achieved with the method of production described.
  • the pump tube no longer exists on the discharge vessel, there are also no different wall thicknesses or inhomogeneities of any other type, as a result of which the radiation emission of the lamp takes place much more uniformly than in the known lamps with a pump tube.
  • the lamp is therefore particularly suitable for use in optical systems, e.g. in motor vehicle headlights where extremely precise adjustment and arrangement of the light / dark boundary is important.
  • FIG. 1a shows the tube 1 made of quartz glass cut to a length of approximately 150 mm.
  • the outside diameter of the tube is approx. 4.5 mm, the inside diameter d is approx. 2 mm.
  • both constrictions 4, 5 are at the same time placed at a defined distance from one another by means of the forming roll 3 (FIG. 1b).
  • a nitrogen stream N2 with a quantity of about 10 l / h is passed through the tube 1 from one side.
  • the future discharge vessel 6 (FIG. 1c) is precisely delimited in its length of approximately 7.5 mm.
  • the constriction 4 has a smaller clear diameter than the constriction 5 arises between the two constrictions in the heated area of the future discharge vessel 6, a gas accumulation p of the nitrogen stream N 2, so that this area is somewhat inflated and assumes its olive shape with an outer diameter of approximately 5.5 mm.
  • a prefabricated electrode system (FIG. 2b) is now introduced from below through the open pipe end, which consists of an electrode 8 made of tungsten, a sealing film 9 made of molybdenum and a power supply 10 made of molybdenum.
  • the electrode 8 is provided with a ball 11 at its end arranged in the discharge vessel 6.
  • the power supply line 10 is bent zigzag in the yz plane, the angle ⁇ by which the curved power supply line 10 deviates from the xz plane being less than 45 °, preferably approximately 20 ° -30 °.
  • the height h that is the amount by which the kink or reversal point 12 of the curved power supply 10 deviates from the xz plane, is greater than half the inner diameter d of the tube 1. In practice, a ratio corresponding to h ⁇ 0 , 55 d proven.
  • the sealing film 9 is aligned in the xz plane, that is to say perpendicular to the yz plane of the curved power supply 10.
  • An electrode system shaped in this way is self-supporting within the tube 1 in that the kink or reversal points 12 of the power supply 10 are in clamping contact with the inner wall of the tube . Once adjusted to its predetermined position, the electrode system maintains it until it is finally fixed.
  • At least three kink or reversal points 12 are attached to each power supply 10.
  • a power supply 10 designed in this way centers itself on the axis of the tube 1.
  • the electrode 8 in the discharge vessel 6 is also automatically centered in the x coordinate of the sealing film 9. Any possible decentering perpendicular to the plane of the sealing film 9, that is to say in the y coordinate, for example by bending the sealing film 9, is compensated for during the squeezing process.
  • the tube 1 In the area of the sealing film 9, the tube 1 is brought to a temperature suitable for the deformation of above approximately 2200 ° C. At the same time, an argon stream Ar is passed through the preformed tube 1. After the pinch temperature is reached, the pinch jaws 13 are moved together and the first pinch 14 is produced. The pinch that is adjacent to the constriction 4 with the smaller diameter is first sealed. The tube 1, which is squeezed on one side, is now removed from the holding device and subjected to a high vacuum annealing at about 1200 ° C. for about 6 hours. The corresponding manufacturing stage of the lamp is shown in Figure 2c.
  • the squeeze jaws 13 are already in preparation for the execution of the second squeeze 17.
  • the discharge vessel 6 is in this by means of a rinsing-pump method Working position cleaned.
  • the discharge vessel 6 and the area of the sealing film 9 are heated to at least 400 ° C. and the heated discharge vessel 6 is then first evacuated and then flooded with argon. This rinsing-pumping process is repeated four times with the discharge vessel 6 heated. Subsequently, the filling substances (FIG.
  • the electrode system is, as before during the preparation for the first squeeze 14, adjusted self-retaining in position at its predetermined position, so that the electrode 8 within of the discharge vessel 6 is arranged and the distance between the balls 11 of the two electrodes 8 is given its intended value.
  • These processes take place through the pump head 15, which for this purpose has a metering flap (not shown) to be opened, in an inert gas counterflow, so that no new contaminants get into the discharge vessel 6.
  • the metering flap is then closed again, the discharge vessel 6 is evacuated and flooded with the final filling gas argon, the cold filling pressure being approximately 500 mbar and thus being less than the atmospheric pressure surrounding the discharge vessel 6.
  • the area around the sealing film 9 of the second electrode system is heated to the pinch temperature of approximately 2200 ° C. and the lamp is sealed, by squeezing the second electrode system.
  • the area of the discharge vessel 6 is cooled to 100 ° C. by means of nitrogen cooled to approximately -50 ° C. in order to prevent evaporation of the metal halide 18 and mercury 19.
  • a finished metal halide high-pressure discharge lamp 20 is shown in FIG. 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
EP89122831A 1988-12-19 1989-12-11 Procédé de préparation d'une lampe à décharge à haute pression à deux culots Expired - Lifetime EP0374677B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3842772A DE3842772A1 (de) 1988-12-19 1988-12-19 Verfahren zur herstellung einer zweiseitigen hochdruckentladungslampe
DE3842772 1988-12-19

Publications (3)

Publication Number Publication Date
EP0374677A2 true EP0374677A2 (fr) 1990-06-27
EP0374677A3 EP0374677A3 (fr) 1991-05-08
EP0374677B1 EP0374677B1 (fr) 1995-03-29

Family

ID=6369560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89122831A Expired - Lifetime EP0374677B1 (fr) 1988-12-19 1989-12-11 Procédé de préparation d'une lampe à décharge à haute pression à deux culots

Country Status (5)

Country Link
EP (1) EP0374677B1 (fr)
JP (1) JP2831404B2 (fr)
DD (1) DD290506A5 (fr)
DE (2) DE3842772A1 (fr)
HU (1) HU202674B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
EP1246221A1 (fr) * 2001-03-26 2002-10-02 General Electric Company Procédés de production de tubes à arc à halogénures métalliques scellés par rétrécissement
WO2006077437A1 (fr) * 2005-01-24 2006-07-27 The University Of Bath Ensemble optique comprenant une cellule a gaz constituee d'une fibre a coeur creux epissee a ses extremites et procedes de production de cet ensemble optique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100350616B1 (ko) 1998-03-16 2002-08-30 마츠시타 덴끼 산교 가부시키가이샤 방전램프의 제조방법
JP4703405B2 (ja) * 2006-01-12 2011-06-15 株式会社小糸製作所 放電ランプ装置用アークチューブの製造方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685880A (en) * 1970-07-06 1972-08-22 Gen Electric Manufacture of lamps of the compact arc discharge type
US3689799A (en) * 1970-09-14 1972-09-05 Gen Electric Method of dosing lamps
US4389201A (en) * 1979-03-12 1983-06-21 General Electric Company Method of manufacturing a lamp
SE457033B (sv) * 1985-05-23 1988-11-21 Lumalampan Ab Kompaktlysroer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP1246221A1 (fr) * 2001-03-26 2002-10-02 General Electric Company Procédés de production de tubes à arc à halogénures métalliques scellés par rétrécissement
WO2006077437A1 (fr) * 2005-01-24 2006-07-27 The University Of Bath Ensemble optique comprenant une cellule a gaz constituee d'une fibre a coeur creux epissee a ses extremites et procedes de production de cet ensemble optique
EP2309609A3 (fr) * 2005-01-24 2011-07-27 The University of Bath Ensemble et procédé optique

Also Published As

Publication number Publication date
JPH02220328A (ja) 1990-09-03
JP2831404B2 (ja) 1998-12-02
DE3842772A1 (de) 1990-06-21
HU896662D0 (en) 1990-02-28
HUT52895A (en) 1990-08-28
HU202674B (en) 1991-03-28
DE58909144D1 (de) 1995-05-04
EP0374677A3 (fr) 1991-05-08
DD290506A5 (de) 1991-05-29
EP0374677B1 (fr) 1995-03-29

Similar Documents

Publication Publication Date Title
DE19710204A1 (de) Bogenentladungsröhre, die mit einem Paar von Molybdänfolien versehen ist, und zugehöriges Herstellungsverfahren
EP0374677B1 (fr) Procédé de préparation d'une lampe à décharge à haute pression à deux culots
EP0374679B1 (fr) Procédé de préparation d'une lampe à décharge à haute pression à deux culots
EP0813229A2 (fr) Procédé de fabrication d'une lampe à incandescence halogène
EP0143419A2 (fr) Lampe à décharge à basse pression compacte
EP0374676B1 (fr) Procédé de préparation d'une lampe à décharge à haute pression à deux culots
DE3439326C2 (fr)
EP0246548B1 (fr) Procédé pour la fabrication d'un réservoir à décharge pour lampes compactes à décharge à basse pression
DE3320919C2 (fr)
EP0591777A2 (fr) Méthode de fabrication d'une lampe à décharge à haute pression de faible puissance à pincement unique et lampes à décharge à haute pression
DE19626710A1 (de) Entladungsröhre und Verfahren zum Schließen eines Röhrenabschnittes
EP0369370B1 (fr) Méthode de fabrication d'une enceinte de lampe
DE3437212A1 (de) Einseitig gesockelte niederdruckentladungslampe
DE971967C (de) Verfahren zum Fuellen eines Gefaesses mit einem Gas mit einem den Druck der Umgebung uebersteigenden Druck
EP0715772B1 (fr) Procede de trefilage de supraconducteurs se presentant sous forme de fils
EP0219860A2 (fr) 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
DE9015032U1 (de) Metallfolie zur Verwendung als Stromleiter bei elektrischen Lampen
DE3207267A1 (de) "verfahren zur herstellung von mehrkanalrohren und ziehduese zur durchfuehrung des verfahrens"
DE1088611B (de) Verfahren und Vorrichtung zum Spuelen des Kolbens einer elektrischen Gluehlampe oder eines aehnlichen Gegenstandes
EP1854119B1 (fr) Procede pour produire un dispositif de tube a decharge et dispositif de tube a decharge ainsi produit
DE102004056453A1 (de) Elektrische Lampe mit Außenkolben
DE2526569C3 (de) Rohr aus Quarzglas mit rechteckigem, ovalem oder quadratischem Strömungsquerschnitt, bei dem wenigstens ein Endbereich verjüngt ist, zur Durchführung halbleitertechnologischer Verfahren und Verfahren zu seiner Herstellung
DE3150025A1 (de) Einrichtung zum herstellen von hochintensiven lichtbogenentladungsroehren
EP0369371A2 (fr) Procédé pour fabriquer une ampoule de lampe
DE4412389A1 (de) Verfahren zum Herstellen eines gebogenen Strahlers, insbesondere einer Halogenglühlampe, und damit hergestellter Strahler sowie dafür geeignete Vorrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19901220

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 19930614

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 58909144

Country of ref document: DE

Date of ref document: 19950504

ITF It: translation for a ep patent filed
ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950612

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19961118

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19961223

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19971231

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19971211

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020218

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051211