EP0219861B1 - 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 PDFInfo
- Publication number
- EP0219861B1 EP0219861B1 EP86114649A EP86114649A EP0219861B1 EP 0219861 B1 EP0219861 B1 EP 0219861B1 EP 86114649 A EP86114649 A EP 86114649A EP 86114649 A EP86114649 A EP 86114649A EP 0219861 B1 EP0219861 B1 EP 0219861B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circular
- pinch
- tube
- current supply
- cylindrical tube
- 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
Links
Images
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
- 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
Definitions
- 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. It is often difficult to maintain the required spacing of the sealing films, some of which are relatively wide and arranged in one plane, within the narrow pinch.
- 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.
- GB-PS 1 442 497 therefore proposed a sheathing of the power supply led out at an angle from the pinch by means of quartz tubes which are filled with a filling material and sealed with an elastomer.
- quartz tubes which are filled with a filling material and sealed with an elastomer.
- this involves a high additional manufacturing effort, which makes the lamp more expensive.
- quartz tubes which have long been led out of the pinch, are extremely vulnerable to breakage, which greatly reduces electrical safety.
- the lamp is intended for use in an optical system. So that the filament can have a certain reference distance from the base end, the external power supplies are e.g. led out from the side of the pinch, whereby the length of the pinch can be changed later and adapted to the optical system.
- the present invention has for its object to design the pinch of the lamps so that on the one hand the necessary width of the sealing film can be used and on the other hand the ignition high voltage required to ignite the lamp of at least 6 kV s 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.
- a pump tube 2 is already molded onto the circular-cylindrical tube 1 in FIG.
- Both the circular cylindrical tube 1 and the pump tube 2 are made of quartz glass.
- two expansion mandrels 3 running parallel to one another are introduced.
- the expansion mandrels 3 are held in such a way that they can carry out a stroke A along the longitudinal axis of the circular-cylindrical tube 1 as well as an expansion B transversely to the same.
- the quartz glass is heated to its softening point. The state of the spread B is shown in FIG. 2.
- part of the circular-cylindrical tube is spread such that this region assumes an elongated, round cross-sectional shape with a cylindrical shape 4, the greater width of which is larger than the original circular-cylindrical diameter (see also FIG. 3).
- the expansion can be carried out as a single operation on a separate machine or on the rotary machine, in which the subsequent crushing process he follows.
- the remaining part of the circular-cylindrical tube 1 facing the pump tube 2 forms the future discharge vessel and maintains its original circular shape during the expansion of the expansion mandrels 3.
- FIG. 5 An embodiment of a finished lamp 5, which was produced by the previously described method, is shown in FIG.
- prefabricated electrode systems are introduced into the circular cylindrical tube 1. These consist of the outer current leads 6 made of tungsten, the sealing foils 7 made of molybdenum and the inner current leads 8 made of tungsten with the hook-shaped electrodes 9, also made of tungsten.
- the sealing foils 7 are arranged in the expanded part 4, running parallel to one another. All of these operations are conventional.
- the pump tube 2 (FIGS. 1 and 2) is melted off, so that only one pump tip 12 remains.
- a pump tube 2 is already molded onto the circular-cylindrical tube 1 in FIG.
- Both the circular cylindrical tube 1 and the pump tube 2 are made of quartz glass.
- two expansion mandrels 14 are inserted at an acute angle to each other.
- the expansion mandrels 14 are held in such a way that they can carry out a stroke A along the longitudinal axis of the circular-cylindrical tube 1 as well as an expansion B transversely to the same.
- the quartz glass is heated to its softening point. The state of the spread B is shown in FIG. 6.
- part of the circular-cylindrical tube is spread in such a way that this region assumes an elongated, round cross-sectional shape 15, the greater width of which is greater than the original circular-cylindrical diameter (see also FIG. 7).
- the spreading can be carried out as a single operation on a separate machine or on the rotary machine, in which the subsequent squeezing process takes place.
- the remaining part of the circular-cylindrical tube 1 facing the pump tube 2 forms the future discharge vessel 11 and maintains its original circular shape during the expansion of the expansion mandrels 14.
- FIG. 16 An embodiment of a finished lamp 16, which was produced by the previously described method, is shown in FIG.
- prefabricated electrode systems are introduced into the circular cylindrical tube 1. These consist of the outer current leads 17 made of tungsten, the sealing foils 18 made of molybdenum and the inner current leads 8 made of tungsten with the hook-shaped electrodes 9, also made of tungsten.
- the sealing foils 18 are arranged in the expanded part 15 at an acute angle to one another. All of these operations are conventional.
- the pump tube 2 (FIGS. 5 and 6) is melted off, so that only one pump tip 12 remains.
- the finished lamp 21 of FIG. 9 has an extended creepage distance at the pinch 22, as a result of which the ignition voltage which can be applied - for example for lamps which are difficult to ignite - can be increased even further. All other part names of this embodiment correspond to the previously described embodiments.
- the distance between the outer current leads 6, 17, which are led out in parallel from the end faces 13, 20, of a metal halide high-pressure discharge lamp 5, 16, 21 produced by the method according to the invention is approximately 20 mm.
- the lamp 5, 16, 21 has a nominal power of approx. 35 W and can be ignited with a high ignition voltage of more than 6 kV s .
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)
Claims (6)
- Procédé pour fabriquer une lampe à décharge à haute pression à halogénure métallique (5,16,21), qui comporte un pincement unilatéral et dont le système de fermeture étanche de l'enceinte est réalisé sous la forme d'une zone de pincement (10,19,22), et à partir duquel deux éléments extérieurs d'alimentation en courant (6,17) sont ressortis et deux éléments intérieurs d'alimentation en courant (8), qui sont pourvus d'électrodes (9) pénètrent dans l'enceinte à décharge (II), la liaison électrique entre les éléments extérieurs d'alimentation en courant (6,17) et les éléments intérieurs associés d'alimentation (8) étant réalisée au moyen de feuilles d'étanchéité (16,18), qui sont enchâssées, dans un plan, à l'intérieur de la zone de pincement (10,19,22) et selon lequel on met en oeuvre essentiellement les étapes opératoires successives suivantes :a) fixation d'un tube de pompage (2) sur un tube en forme de cylindre circulaire (1),b) insertion d'un système préfabriqué d'électrodes, constitué par des éléments extérieurs d'alimentation en courant (6,17), les feuilles d'étanchéité (7,18) et les éléments intérieur d'alimentation en courant (8) équipés des électrodes (9) dans le tube en forme de cylindre circulaire (1), les feuilles d'étanchéité (7,18) étant disposées dans la parte, tournée à l'opposé du tube de pompage (2), du tube en forme de cylindre circulaire (1),c) réalisation de la zone de pincement (10,19,22) dans la zone des feuilles d'étanchéité (7,18), etd) insertion de la substance de remplissage désirée dans l'enceinte à décharge (11) et fermeture étanche du tube de pompage (2),caractérisé en ce qu'avant l'insertion des systèmes préfabriqués d'électrodes dans la partie, tournée à l'opposé du tube de pompage (2), du tube en forme de cylindre circulaire (1), on introduit (A) deux mandrins d'élargissement (3,14) et on les écarte ensuite (B), tout en chauffant le verre quartzeux à son point de ramollissement.
- Procédé selon la revendication 1, caractérisé par le fait que les mandrins d'élargissement (3) sont parallèles entre eux, ce qui a pour effet qu'après écartement des mandrins d'élargissement (3), le tube (1) prend dans cette zone une forme en coupe transversale ovale avec une configuration cylindrique, dont le plus grand diamètre est supérieur au diamètre du tube en forme de cylindre circulaire (1), et qu'après la réalisation de la zone de pincement (10), sa largeur est supérieure au diamètre du tube en forme de cylindre circulaire (1).
- Lampe à décharge à haute pression à halogénure métallique, fabriquée conformément au procédé selon les revendications 1 et 2, caractérisé en ce que la distance entre les éléments extérieurs d'alimentation en courant (6), qui ressortent parallèlement de la face frontale (13) de la zone de pincement (10), est supérieure au diamètre extérieur de l'enceinte à décharge (11).
- Procédé suivant la revendication 1, caractérisé par le fait que les mandrins d'élargissement (14) convergent l'un vers l'autre en faisant un angle aigu, ce qui a pour effet qu'après l'écartement des mandrins d'élargissement (3), le tube (1) prend, dans cette zone, une forme en coupe transversale ovale (15), dont la largeur la plus importante est supérieure au diamètre du tube en forme de cylindre circulaire (1) et dont la largeur la plus petite est égale au diamètre du tube en forme de cylindre circulaire (1).
- Lampe à décharge à haute pression à halogénure métallique, fabriquée conformément au procédé selon la revendication 1 et 4, caractérisée en ce que les feuilles d'étanchéité (18) convergent l'une vers l'autre sous un angle aigu à l'intérieur de la zone de pincement (19,22), la distance de leurs extrémités proches de l'enceinte à décharge (11) étant inférieure à la distance entre leurs extrémités tournées à l'opposé de l'enceinte à décharge (11).
- Lampe à décharge à haute pression à halogénure métallique suivant la revendication 5, caractérisée par le fait que la distance entre les éléments extérieurs d'alimentation en courant (17), qui ressortent parallèlement de la surface frontale (20) de la zone de pincement (19,22) est supérieure au diamètre extérieur de l'enceinte à décharge (11).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853537880 DE3537880A1 (de) | 1985-10-24 | 1985-10-24 | Verfahren zur herstellung einer einseitig gequetschten metallhalogenidhochdruckentladungslampe und eine nach diesem verfahren hergestellte lampe |
DE3537879 | 1985-10-24 | ||
DE3537880 | 1985-10-24 | ||
DE19853537879 DE3537879A1 (de) | 1985-10-24 | 1985-10-24 | Verfahren zur herstellung einer einseitig gequetschten metallhalogenidhochdruckentladungslampe und eine nach diesem verfahren hergestellte lampe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0219861A2 EP0219861A2 (fr) | 1987-04-29 |
EP0219861A3 EP0219861A3 (en) | 1989-05-03 |
EP0219861B1 true EP0219861B1 (fr) | 1991-09-18 |
Family
ID=25837262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86114649A Expired - Lifetime EP0219861B1 (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) | US4723092A (fr) |
EP (1) | EP0219861B1 (fr) |
JP (1) | JPH0656737B2 (fr) |
DE (1) | DE3681549D1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8913798D0 (en) * | 1989-06-15 | 1989-08-02 | Emi Plc Thorn | Arc tube for a high pressure discharge lamp |
DE4024603A1 (de) * | 1990-08-02 | 1992-02-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Hochdruckentladungslampe |
DE4233469A1 (de) * | 1992-10-05 | 1994-04-07 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren zur Herstellung einer einseitig gequetschten Hochdruckentladungslampe kleiner Leistung und Hochdruckentladungslampen |
US6685525B1 (en) * | 1999-06-23 | 2004-02-03 | Matsushita Electric Industrial Co., Ltd. | Method for manufacturing an incandescent lamp |
US20050211370A1 (en) * | 2005-06-20 | 2005-09-29 | Osram Sylvania Inc. | Ceramic discharge vessel with joined capillaries |
DE102005056956A1 (de) * | 2005-11-29 | 2007-05-31 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Elektrische Lampe mit einem Kolben mit mindestens einer Quetschung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6806902A (fr) * | 1968-05-16 | 1969-11-18 | ||
GB1174745A (en) * | 1968-07-01 | 1969-12-17 | British Lighting Ind Ltd | Improvements in Seals for Electrical Devices |
GB1442497A (en) * | 1974-03-01 | 1976-07-14 | Thorn Electrical Ind Ltd | Discharge lamps |
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 |
-
1986
- 1986-10-06 US US06/915,713 patent/US4723092A/en not_active Expired - Fee Related
- 1986-10-22 EP EP86114649A patent/EP0219861B1/fr not_active Expired - Lifetime
- 1986-10-22 DE DE8686114649T patent/DE3681549D1/de not_active Expired - Fee Related
- 1986-10-24 JP JP61252146A patent/JPH0656737B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0219861A2 (fr) | 1987-04-29 |
US4723092A (en) | 1988-02-02 |
JPS62100931A (ja) | 1987-05-11 |
DE3681549D1 (de) | 1991-10-24 |
JPH0656737B2 (ja) | 1994-07-27 |
EP0219861A3 (en) | 1989-05-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69804192T2 (de) | Hochdruckentladungslampe mit uv-verstärker | |
DE19812298C2 (de) | Verfahren zur Herstellung einer Metall-Halogenlampe sowie eine derartige Metall-Halogenlampe | |
EP0451647B1 (fr) | Lampe à décharge à haute pression et son procédé de fabrication | |
DE69403176T2 (de) | Elektrische Lampe | |
DE69323578T2 (de) | Hochintensitätsentladungslampe mit Entladungsröhre mit versetzt angeordneten Quetschdichtungen | |
DE69405181T2 (de) | Hochdruck-Entladungslampe | |
DE3609908A1 (de) | Halogengluehlampe und verfahren zu ihrer herstellung | |
EP0219861B1 (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 | |
DE2627380C3 (de) | Metalldampf-Hochdruckentladungslampe für horizontalen Betrieb | |
DE69712833T2 (de) | Bogenentladungsröhre für Entladungslampenvorrichtung | |
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 | |
DE60318899T2 (de) | Hochdruck-entladungslampe, mit einer einen gasgefüllten hohlraum beinhaltenden einschmelzung | |
DE69011145T2 (de) | Einseitig gequetschte Metalldampfentladungslampe. | |
DE69110097T2 (de) | Elektrische Glühlampe. | |
DE69710676T2 (de) | Hochdruckentladungslampe | |
DE3404207C2 (fr) | ||
DE69020465T3 (de) | Einseitig gequetschte elektrische Metalldampfentladungslampe. | |
WO2001035436A1 (fr) | Lampe a decharge comportant un porte-electrode | |
DE3537879A1 (de) | Verfahren zur herstellung einer einseitig gequetschten metallhalogenidhochdruckentladungslampe und eine nach diesem verfahren hergestellte lampe | |
DE3305468C2 (fr) | ||
WO2013017304A1 (fr) | Lampe à décharge à haute pression avec aide à l'amorçage | |
DE3537880A1 (de) | Verfahren zur herstellung einer einseitig gequetschten metallhalogenidhochdruckentladungslampe und eine nach diesem verfahren hergestellte lampe | |
DE2420342A1 (de) | Halogengluehlampe und verfahren zur herstellung | |
DE69707350T2 (de) | Elektrodenanordnung für Natrium-Hochdruckentladungslampe und deren Herstellungsverfahren | |
DE3147705A1 (de) | Starthilfe fuer nicht-geradlinige entladungslampen und verfahren zur herstellung derselben |
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 |
|
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 |
|
17P | Request for examination filed |
Effective date: 19890608 |
|
17Q | First examination report despatched |
Effective date: 19901227 |
|
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: 3681549 Country of ref document: DE Date of ref document: 19911024 |
|
ET | Fr: translation filed | ||
ITF | It: translation for a ep patent filed |
Owner name: STUDIO JAUMANN |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
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: DE Payment date: 19931216 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19940916 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19941024 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19950701 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19951022 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19951022 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19960628 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
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: 20051022 |