EP0810623B1 - Procédé de fabrication d'une lampe - Google Patents

Procédé de fabrication d'une lampe Download PDF

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Publication number
EP0810623B1
EP0810623B1 EP97108276A EP97108276A EP0810623B1 EP 0810623 B1 EP0810623 B1 EP 0810623B1 EP 97108276 A EP97108276 A EP 97108276A EP 97108276 A EP97108276 A EP 97108276A EP 0810623 B1 EP0810623 B1 EP 0810623B1
Authority
EP
European Patent Office
Prior art keywords
tube
funnel
glass
lamp
enveloping
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
EP97108276A
Other languages
German (de)
English (en)
Other versions
EP0810623A2 (fr
EP0810623A3 (fr
Inventor
Karl-Heinz Dr. Sossenheimer
Herrmann Leiss
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.)
Schott AG
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
Schott Glaswerke AG
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 Carl Zeiss AG, Schott Glaswerke AG filed Critical Carl Zeiss AG
Publication of EP0810623A2 publication Critical patent/EP0810623A2/fr
Publication of EP0810623A3 publication Critical patent/EP0810623A3/fr
Application granted granted Critical
Publication of EP0810623B1 publication Critical patent/EP0810623B1/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
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • 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
    • H01J9/40—Closing vessels
    • 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
    • H01J61/302—Vessels; Containers characterised by the material of the vessel

Definitions

  • the invention relates to a method for producing a lamp with a Lighting system, a multi-part glass body that can be connected vacuum-tight, one Base unit for mounting the lamp in a lighting fixture and with the for the operation of the necessary electrical supply lines, the multi-part Glass body a one-sided open cladding tube, an insertable into this cladding tube and one of its ends funnel-shaped and at this end with the cladding tube funnel tube connectable by fusion, and a, in this funnel tube at least partially insertable and on the non-funnel-shaped the other end of the funnel tube can be connected to it by fusion another tube, the pump handle to evacuate the interior of the lamp, includes.
  • the special feature of the metal halide lamp is its white light, from warm white to daylight white. They are also characterized by high luminous efficacy and excellent color rendering properties.
  • Sodium xenon lamps represent a modern and economical lighting system for today's accent and general lighting, for example because their color temperature can also be switched.
  • High-pressure sodium vapor lamps are the most economical light sources in terms of overall economic efficiency.
  • Mercury vapor lamps are a preferred and very powerful light source for indoor and outdoor use with high public traffic.
  • the object of the invention is achieved in that the cladding tube into which Lighting system with the funnel tube and the associated by fusion Pump stem is introduced, used in a length as it is used for deformation and the subsequent fusion of the cladding tube with the complete Lighting system without the need for parts of the cladding tube as residual glass is necessary, and the cladding tube first through the pump stem until the formation of a thread or Closure device as a base unit at the open end of the heated and plastic deformable cladding tube blown into a mold and then the interior the cooled lamp is evacuated by the pump handle and by melting is closed under vacuum, by means of through the vitreous Vacuum-tight supply lines in the base area of the lamp contact points generated for the energy supply to the lighting system.
  • the glass body consists of a glass with the composition (in% by weight on an oxide basis) SiO 2 70-78; B 2 O 3 10 - 16; Al 2 O 3 2-6; Na 2 O 2-6; K 2 O 0.5-2; MgO 0-1; CaO 0.5-2; BaO 1.5-3, in particular with the composition SiO 2 74; B 2 O 3 13; Al 2 O 3 4; Na 2 O 4; K 2 O 1.5; MgO 0.5; CaO 1; BaO 2; which is also available under the brand name SUPRAX® from Schott Glaswerke.
  • Glass bodies with wall thicknesses of 0.6 to 2.5 mm and with diameters are used manufactured and processed from 20 to 250 mm.
  • FIGS 1 to 4 illustrate the prior art on which the present Invention builds up.
  • the multi-part glass body 3 comprises a cladding tube 4, which is initially open on one side, a funnel tube 5 which can be inserted into this cladding tube 4 and is funnel-shaped at one of its ends, and a further tube 6 which can be inserted into and can be connected to this funnel tube 5, the so-called "pump stem”. for later evacuation of the interior 7 of the lamp 1.
  • the lamp 1 is held in a chuck 8 or 9 for further processing on the cladding tube 4 and on the pump stem 6.
  • the cladding tube 4 is heated by means of a burner 10 at its lower end at the level of the funnel 5a of the tube 5.
  • Figure 2 If the glass of the cladding tube 4 has been heated for a sufficiently long time up to temperatures of about 1200 to 1220 ° C., it begins to melt, the weight of the edge 4a of the cladding tube 4 which is melting melting to constrict and simultaneously fuse with the funnel 5a of the tube 5 leads.
  • the other disadvantage of the conventional method is that it is not insignificant Glass quantities of the cladding tube 4 are obtained as residual glass and must be discarded.
  • FIG. 3 then already shows the evacuated lamp 1 with the melted-off "pump stem” 6 and the vacuum-tight through the base region 11 of the lamp 1, which is formed from the cladding tube 4 and the funnel 5a of the tube 5 in a separate further working step by means of a form roller is guided electrical supply lines 12 which are connected to the lighting system 2 in a current-carrying manner via a metal base 13, as can be seen in FIG .
  • the metal base 13 is often designed as a thread and fastened to the base region 11 by means of a cement.
  • the putty has to meet special requirements because it has to compensate for the different thermal expansion behavior between glass and metal, even at temperatures of 20 to 400 ° C and over long periods, without becoming brittle.
  • Another very expensive possibility of connecting the metal base 13 to the glass wall of the base region 11 is to blow the glass wall heated by the burner to the state of deformability against the metal base 13. This process step must, however, take place before the lamp is evacuated, the "pump stem” then being blown over the tube 6.
  • FIGS 5 to 10 show embodiments of the method according to the present invention.
  • FIG. 5 shows the very preferred method variant in which the lighting system 2 with the funnel tube 5 and the pump stem 6 connected therewith by fusion is inserted into the cladding tube to such an extent that the open end of the cladding tube 4 and the funnel-shaped end of the funnel tube 5 are positioned and fixed in one plane.
  • z. B. 2 burners or a suitable ring burner is then, as shown in Figure 6 , by means of a roller 14 made of carbon z. B. graphite or Fortadur®, a glass material reinforced by SiC fibers from Schott Glastechnike, the deformably heated lower part of the cladding tube 4 with the funnel 5a of the funnel tube 5 and thus fused with the lighting system 2, thereby according to the invention at the same time a base unit 11 is preformed.
  • the area of the base unit 11 of the glass body 3 which is kept deformable by the application of temperature is surrounded by a (divided) shape 15 as shown in FIG. 7 , which shows the negative of the later desired profile of the base unit 11 and is then inserted into the Glass body 3 is blown air under pressure, the deformable base unit 11 being pressed against the wall of the mold 15 to form the profile, usually a thread. Then, after the glass body 3 has cooled, the interior 7 of the lamp 1 is evacuated and the pump stem 6 is melted off.
  • the electrical leads 12, which are vacuum-tight through the base unit 11 of the Lamp 1 are guided, are now in a preferred embodiment according to the invention no longer connected to a metal base 13, but directly through recesses or recordings in the glass, possibly also with the help of a plastic part fixed so that the lamp 1 according to the invention screwed into every common socket or can be plugged in.
  • Figure 8 shows this sketchy, while Figures 9 a / b and 10 a / b show the details here.
  • a (split) injection mold z. B. a thread Formed in the base region 11 and thereby produces a longitudinal groove 16 which for Inclusion of a contact wire serves as an electrical lead 12a, as in 9a and 10a is shown.
  • Variant I is shown in FIG. 9b and, at the end of the suitably melted "pump stem" 6, shows a deformation which serves to receive the contact wire 12b which is designed as a loop.
  • the security of this connection can additionally be improved by a drop of solder which firmly fixes the electrical supply line 12b at the end of the pump stem 6.
  • Variant II is shown in FIG. 10b:
  • the contact wires 12a and 12b are used for the electrical lead in a plastic part 18, in the holes for fixation the wires 12a and 12b are provided.
  • the suitably shaped plastic part 18 fits exactly into the free space of the base unit 11, which the Cladding tube 4, the funnel tube 5 and the still protruding part of the melted Form pump stem 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Glass Compositions (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Claims (5)

  1. Procédé de fabrication d'une lampe (1) avec un système d'éclairage (2), un corps de verre en plusieurs parties (3), qui peut être raccordé à celui-ci de manière étanche au vide, une unité culot (11/13) pour le montage de la lampe (1) dans un corps d'éclairage et avec les conducteurs d'amenée électriques (12) à chaque fois nécessaires pour le fonctionnement, le corps de verre en plusieurs parties (3) comprenant un tube enveloppant (4) ouvert d'un côté, un tube en entonnoir (5) pouvant être introduit dans ce tube enveloppant (4), conforme en entonnoir à une de ses extrémités et pouvant être raccordé au tube enveloppant (4) par fusion à cette extrémité et un autre tube (6) qui peut être introduit au moins en partie dans ce tube en entonnoir (5) et peut être raccordé, à l'autre extrémité non conformée en entonnoir du tube en entonnoir (5), à celui-ci par fusion, la "tige de pompe" pour la mise sous vide de l'espace intérieur (7) de la lampe (1), caractérisé en ce que le tube enveloppant (4), dans lequel le système d'éclairage (2) est introduit avec le tube en entonnoir (5) et la tige de pompe (6) raccordé à celui-ci par fusion, est utilisé en longueur nécessaire pour la déformation et la fusion consécutive du tube enveloppant (4) avec le système d'éclairage complet (2) sans production de parties du tube enveloppant (4) en tant que verre résiduaire, et dans lequel le tube enveloppant (4) est soufflé tout d'abord dans un moule par la tige de pompe (6) jusqu'à formation d'un filet ou d'un dispositif de fermeture sous forme d'une unité culot (11) à l'extrémité ouverte du tube enveloppant (4) chauffé et déformable de manière plastique, ensuite l'espace intérieur (7) de la lampe refroidie (1) est mis sous vide par la tige de pompe (6) et fermé par sa séparation par fusion sous vide, des points de contact pour l'amenée d'énergie au système d'éclairage (2) étant formés dans la zone de culot (11) de la lampe (1) au moyen des conducteurs d'amenée électriques (12) passés à travers le corps de verre (3) de manière étanche au vide.
  2. Procédé selon la revendication 1, caractérisé en ce que le système d'éclairage (2) est introduit, avec le tube en entonnoir (5) et la tige de pompe (6) raccordée à celui-ci par fusion, assez largement dans le tube enveloppant (4) pour que l'extrémité ouverte du tube enveloppant (4) et l'extrémité conformée en entonnoir du tube en entonnoir (5) soient positionnées dans un plan, fixées et raccordées par fusion à l'aide d'un rouleau de façonnage (14).
  3. Procédé selon les revendications 1 et 2, caracterisé en ce que le corps de verre est constitué d'un verre de composition suivante (en % en poids par rapport aux oxydes) : SIO2 70 - 78 B2O3 10- 16 Al2O3 2 - 6 Na2O 2 - 6 K2O 0,5 - 2 MgO 0 - 1 CaO 0,5 - 2 BaO 1,5 - 3.
  4. Procédé selon les revendications 1 à 3, caractérisé en ce que différentes compositions de verre sont fondues dans le cas de corps de verre en plusieurs parties (3).
  5. Procédé selon les revendications 1 à 4, caractérisé en ce qu'on fabrique et on façonne des corps de verre avec des épaisseurs de paroi de 0,6 - 2,5 mm et des diamètres de 20 - 250 mm.
EP97108276A 1996-05-28 1997-05-22 Procédé de fabrication d'une lampe Expired - Lifetime EP0810623B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19621329 1996-05-28
DE19621329A DE19621329C1 (de) 1996-05-28 1996-05-28 Verfahren zur Herstellung einer Lampe und nach dem Verfahren hergestellte Lampe

Publications (3)

Publication Number Publication Date
EP0810623A2 EP0810623A2 (fr) 1997-12-03
EP0810623A3 EP0810623A3 (fr) 1998-03-04
EP0810623B1 true EP0810623B1 (fr) 2001-07-04

Family

ID=7795466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108276A Expired - Lifetime EP0810623B1 (fr) 1996-05-28 1997-05-22 Procédé de fabrication d'une lampe

Country Status (2)

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EP (1) EP0810623B1 (fr)
DE (2) DE19621329C1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1564513B2 (de) * 1966-12-17 1975-09-25 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und Vorrichtung zum vakuumdichten VerschlieBen einer Durchführung
DE2737681A1 (de) * 1977-08-20 1979-02-22 Philips Patentverwaltung Verfahren zur herstellung elektrischer gluehlampen mit wenigstens einer kolbenquetschung
JPS57128438A (en) * 1981-01-30 1982-08-10 Nec Home Electronics Ltd Manufacture of circular fluorescent lamp
JPS6095828A (ja) * 1983-10-31 1985-05-29 Toshiba Corp けい光ランプの製造方法
JPS60185357A (ja) * 1984-03-05 1985-09-20 スタンレー電気株式会社 ビード封止ガス入り電球の製造装置
JPS62154430A (ja) * 1985-12-26 1987-07-09 Toshiba Corp 管球用ガラスバルブの製造方法
DE3838696A1 (de) * 1988-11-15 1990-05-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zur herstellung eines lampengefaesses
DE3838697A1 (de) * 1988-11-15 1990-05-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zur herstellung eines lampengefaesses
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

Also Published As

Publication number Publication date
EP0810623A2 (fr) 1997-12-03
DE59703940D1 (de) 2001-08-09
EP0810623A3 (fr) 1998-03-04
DE19621329C1 (de) 1997-12-04

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