EP0374679A2 - 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
EP0374679A2
EP0374679A2 EP89122833A EP89122833A EP0374679A2 EP 0374679 A2 EP0374679 A2 EP 0374679A2 EP 89122833 A EP89122833 A EP 89122833A EP 89122833 A EP89122833 A EP 89122833A EP 0374679 A2 EP0374679 A2 EP 0374679A2
Authority
EP
European Patent Office
Prior art keywords
tube
discharge vessel
pinch
producing
lamp
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
EP89122833A
Other languages
German (de)
English (en)
Other versions
EP0374679B1 (fr
EP0374679A3 (fr
Inventor
Jürgen Dr. Heider
Dieter Lang
Hartmuth Bastian
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6369557&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0374679(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0374679A2 publication Critical patent/EP0374679A2/fr
Publication of EP0374679A3 publication Critical patent/EP0374679A3/fr
Application granted granted Critical
Publication of EP0374679B1 publication Critical patent/EP0374679B1/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 designated in the preamble of 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. Since the work steps of filling and closing the discharge vessel take place in the high-purity atmosphere of the glovebox, contamination by foreign gases such as H2, O2 or H2O can be reduced to a minimum. By heating the still open tube inside the glovebox, the particle density in this area is reduced. This creates - after the sealing melting by means of a plasma torch in the glovebox and after the discharge vessel has cooled - a certain negative pressure inside, which, in conjunction with the temperature reduction to approx. ⁇ 100 ° C, enables the second pinch to be produced outside the glovebox.
  • the process time is considerably shortened and the entire production process is simplified. Because of the there are no different wall thicknesses or inhomogeneities of any other type, which means that the radiation emission from the lamp is much more uniform than in the known lamps with a pump tube.
  • the lamp is therefore particularly suitable for use in optical systems, for example in motor vehicle headlights, in which extremely precise adjustment and arrangement of the light / dark boundary are 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 placed in the center and at a defined distance from one another by means of the forming roller 3 (FIG. 1b).
  • a nitrogen stream N 2 is passed through the tube 1 at a rate of 10 l / h 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. This results in a gas accumulation p of the nitrogen stream N 2 between the two constrictions in the heated area of the future discharge vessel 6, so that this area is somewhat inflated and its olive shape with an outer diameter of approx .5.5 mm.
  • the prefabricated electrode system (FIG. 2) is squeezed into that end of the tube 1 which has the constriction 4 with the smaller diameter.
  • the electrode system consists of an electrode 7 made of tungsten, a sealing film 8 made of molybdenum and a power supply 9 made of molybdenum.
  • the electrode 7 is provided with a ball 10 at its end arranged in the discharge vessel 6.
  • the power supply line 9 is bent in a zigzag shape in the yz plane, the angle ⁇ by which the curved power supply line 9 deviates from the xz plane being less than 45 °, preferably approximately 20 ° -30 °.
  • the height h that is the amount by which the reversal point 11 of the curved power supply 9 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 you tion film 8 is aligned in the xz-plane, that is perpendicular to the yz-plane of the curved power supply 9.
  • An electrode system shaped in this way holds itself within the tube 1 by the kinking or reversal points 11 of the power supply 9 being clamped against the inner wall of the tube. Once adjusted to its predetermined position, the electrode system maintains it until it is finally fixed.
  • each power supply 9 To securely support the power supply 9 on the inner wall of the tube 1, at least three kink or reversal points 11 are attached to each power supply 9.
  • a power supply 9 designed in this way centers itself in the axis of the tube 1.
  • the electrode 7 in the discharge vessel 6 is also automatically centered in the x coordinate of the sealing film 8. Any possible decentration perpendicular to the plane of the sealing film 8, that is to say in the y coordinate, for example by bending the sealing film 8, is compensated for during the squeezing process.
  • the first pinch 12 is then produced.
  • the tube 1 in the area of the sealing film 8 is brought to a temperature of above approximately 2200 ° C. which is suitable for the deformation.
  • an argon flow is passed through the preformed tube 1.
  • the first pinch 12 is produced.
  • the pinch that is adjacent to the constriction 4 with the smaller diameter is first sealed.
  • the production of the pinch itself is a process known to the person skilled in lamp construction and is not shown separately in the figures.
  • the tube 1 provided with the first pinch 12 is now subjected to high-vacuum annealing at> 400 ° C. and ⁇ 5 ⁇ 10 ⁇ 5 mbar when it is introduced into the glove box for cleaning.
  • the glovebox 13 is filled with argon.
  • the filling pressure does not deviate from the surrounding atmospheric pressure by more than a few 10 mbar.
  • the argon filling gas of the glovebox 13 corresponds to the future filling gas of the metal halide high-pressure discharge lamp.
  • the work steps within the glove box 13 are shown in FIG. 4.
  • FIG. 4a shows the lamp of FIG. 3 pinched on one side in the glovebox 13.
  • the filling substances consisting of a metal halide pill 14 and a mercury ball 15, and first the second electrode system (FIG. 4b) introduced.
  • the filling substances fall through the still open constriction 5 with the larger diameter into the discharge vessel 6.
  • the electrode system is, as before during the preparation for the first squeeze 12, adjusted in its self-retaining position at its predetermined position, so that the electrode 7 within of the discharge vessel 6 is arranged and the distance between the balls 10 of the two electrodes 7 is given its intended value.
  • the open tube 1 is heated with a heating device. This causes a reduction in the particle density in the heated area.
  • the quartz tube 1 is then sealed at its open end inside the glovebox 13 by means of a plasma torch 16 or a laser (FIG. 4c), so that only one melting tip 17 (FIG. 4d) remains.
  • a plasma torch 16 or a laser FIG. 4c
  • the lamp thus prefabricated has cooled down Due to the reduced particle density inside the discharge vessel there is a filling pressure which is approx. 300 mbar below the surrounding atmospheric pressure.
  • the prefabricated lamp is now removed from the glovebox 13.
  • the area around the sealing film 8 of the second electrode system is heated to the pinch temperature of approximately 2200 ° C. and the second pinch 18 (FIG. 5) is applied by squeezing the second electrode system.
  • the area of the discharge vessel 6 is cooled to ⁇ 100 ° C. by means of cooled nitrogen in order to prevent the metal halide 14 and mercury 15 from evaporating.
  • the lamp is removed from the squeezing device and the tube ends 1 projecting beyond the squeezes 12, 18 are removed.
  • the zigzag part of the power supply lines 9 can also be removed.
  • a finished metal halide high-pressure discharge lamp 19 is shown in FIG. 5.

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)
EP89122833A 1988-12-19 1989-12-11 Procédé de préparation d'une lampe à décharge à haute pression à deux culots Expired - Lifetime EP0374679B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3842769 1988-12-19
DE3842769A DE3842769A1 (de) 1988-12-19 1988-12-19 Verfahren zur herstellung einer zweiseitigen hochdruckentladungslampe

Publications (3)

Publication Number Publication Date
EP0374679A2 true EP0374679A2 (fr) 1990-06-27
EP0374679A3 EP0374679A3 (fr) 1991-05-08
EP0374679B1 EP0374679B1 (fr) 1995-03-15

Family

ID=6369557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89122833A Expired - Lifetime EP0374679B1 (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) EP0374679B1 (fr)
JP (1) JP2804134B2 (fr)
DD (1) DD290504A5 (fr)
DE (2) DE3842769A1 (fr)
HU (1) HU203170B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0892423A3 (fr) * 1997-07-17 1999-09-22 Ushiodenki Kabushiki Kaisha Lampe à décharge du type à arc court et son procédé de fabrication
EP0944109A1 (fr) * 1998-03-16 1999-09-22 Matsushita Electric Industrial Co., Ltd. Lampe à décharge et sa méthode de fabrication
WO2005122206A3 (fr) * 2004-06-09 2008-03-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Procede d'usinage d'une lampe et lampe usinee selon un tel procede
WO2009115118A1 (fr) * 2008-03-19 2009-09-24 Osram Gesellschaft mit beschränkter Haftung Lampe à décharge et procédé de fabrication d'une lampe à décharge
CN107029635A (zh) * 2017-05-25 2017-08-11 桂林理工大学 一种在真空环境下制备化合物的方法及装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2423862A (en) 2005-03-04 2006-09-06 Heraeus Noblelight Ltd High-pressure discharge lamp having constructional details for reducing devitrification of glass

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305289A (en) * 1963-05-09 1967-02-21 Gen Electric Electric lamp manufacture
US3689799A (en) * 1970-09-14 1972-09-05 Gen Electric Method of dosing lamps
DE2127526A1 (de) * 1971-06-03 1972-12-14 Licentia Gmbh Verfahren zur Durchfuhrung des Verfahrens zum Erzeugen eines Hochvakuums und Vornch
JPS51128179A (en) * 1975-04-30 1976-11-08 Iwasaki Electric Co Ltd Discharge lamp manufacturing method
JPS6057654B2 (ja) * 1980-12-26 1985-12-16 株式会社東芝 管球の封止加工方法
JPS60127633A (ja) * 1983-12-12 1985-07-08 Toshiba Corp 金属蒸気放電灯の製造方法
SE457033B (sv) * 1985-05-23 1988-11-21 Lumalampan Ab Kompaktlysroer
HU207175B (en) * 1986-02-12 1993-03-01 Tungsram Reszvenytarsasag Device for manufacturing discharge tube of a sodium vapour discharge lamp
DE3842770A1 (de) 1988-12-19 1990-06-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zur herstellung einer zweiseitigen hochdruckentladungslampe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0892423A3 (fr) * 1997-07-17 1999-09-22 Ushiodenki Kabushiki Kaisha Lampe à décharge du type à arc court et son procédé de fabrication
EP0944109A1 (fr) * 1998-03-16 1999-09-22 Matsushita Electric Industrial Co., Ltd. Lampe à décharge et sa méthode de fabrication
US6791271B2 (en) 1998-03-16 2004-09-14 Matsushita Electric Industrial Co., Ltd. Discharge lamp and method of producing the same
WO2005122206A3 (fr) * 2004-06-09 2008-03-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Procede d'usinage d'une lampe et lampe usinee selon un tel procede
WO2009115118A1 (fr) * 2008-03-19 2009-09-24 Osram Gesellschaft mit beschränkter Haftung Lampe à décharge et procédé de fabrication d'une lampe à décharge
CN107029635A (zh) * 2017-05-25 2017-08-11 桂林理工大学 一种在真空环境下制备化合物的方法及装置

Also Published As

Publication number Publication date
HU896665D0 (en) 1990-02-28
HUT52893A (en) 1990-08-28
DE3842769A1 (de) 1990-06-21
DE58909112D1 (de) 1995-04-20
EP0374679B1 (fr) 1995-03-15
EP0374679A3 (fr) 1991-05-08
HU203170B (en) 1991-05-28
DD290504A5 (de) 1991-05-29
JPH02223131A (ja) 1990-09-05
JP2804134B2 (ja) 1998-09-24

Similar Documents

Publication Publication Date Title
DE69403176T2 (de) Elektrische Lampe
DE2212536C2 (de) Verfahren zur Herstellung von Leuchtstofflampen
DE2835904C2 (de) Verwendung einer Baueinheit aus Elektrode und Zuleitung
EP0386588B1 (fr) Lampe à décharge à basse pression de mercure
DE19710204A1 (de) Bogenentladungsröhre, die mit einem Paar von Molybdänfolien versehen ist, und zugehöriges Herstellungsverfahren
EP0374679B1 (fr) Procédé de préparation d'une lampe à décharge à haute pression à deux culots
DE3029824A1 (de) Hochdruckentladungslampe
EP0374677B1 (fr) Procédé de préparation d'une lampe à décharge à haute pression à deux culots
DE69712833T2 (de) Bogenentladungsröhre für Entladungslampenvorrichtung
EP0374676B1 (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
DE2732060C2 (de) Elektrische Leuchtstofflampe
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
DE3112821A1 (de) Elektrische lampe mit einer als quetschung ausgebildeten gefaesseinschmelzung sowie vorrichtung und verfahren zur herstellung
DE3320919C2 (fr)
CH621889A5 (fr)
EP0219860B1 (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
EP0369370B1 (fr) Méthode de fabrication d'une enceinte de lampe
DE2529004A1 (de) Gegenstand mit einem glasteil, in den ein metallteil eingeschmolzen ist
DE975461C (de) Elektronenstrahlroehre, insbesondere Fernsehbildroehre, mit einem aus Metall bestehenden Roehrenkolben
DE19603301C2 (de) Elektrische Lampe mit Molybdänfoliendurchführungen für ein Lampengefäß aus Quarzglas
DE10117664C1 (de) Rohrstutzen zum Leiten von oder Eintauchen in Glasschmelzen sowie zu deren Erhitzung und die Verwendung des Rohrstutzens
DE9015032U1 (de) Metallfolie zur Verwendung als Stromleiter bei elektrischen Lampen
DE19647827B4 (de) Verfahren zur Herstellung einer Leuchtstofflampe
DE1004732B (de) Verfahren zur Herstellung einer teilweise verspiegelten, rohrfoermigen Gluehlampe

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 NL SE

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 NL SE

17Q First examination report despatched

Effective date: 19930628

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 NL SE

REF Corresponds to:

Ref document number: 58909112

Country of ref document: DE

Date of ref document: 19950420

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: 19950605

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: NL

Payment date: 20051205

Year of fee payment: 17

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

Ref country code: GB

Payment date: 20051208

Year of fee payment: 17

Ref country code: SE

Payment date: 20051208

Year of fee payment: 17

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

Ref country code: FR

Payment date: 20051216

Year of fee payment: 17

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

Ref country code: SE

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

Effective date: 20061212

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

Ref country code: IT

Payment date: 20061231

Year of fee payment: 18

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

Ref country code: NL

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

Effective date: 20070701

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20061211

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20070701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070831

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: 20061211

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

Ref country code: FR

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

Effective date: 20070102

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

Ref country code: DE

Payment date: 20090220

Year of fee payment: 20

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

Effective date: 20071211