EP0235855B1 - Electric incandescent lamp - Google Patents

Electric incandescent lamp Download PDF

Info

Publication number
EP0235855B1
EP0235855B1 EP87200277A EP87200277A EP0235855B1 EP 0235855 B1 EP0235855 B1 EP 0235855B1 EP 87200277 A EP87200277 A EP 87200277A EP 87200277 A EP87200277 A EP 87200277A EP 0235855 B1 EP0235855 B1 EP 0235855B1
Authority
EP
European Patent Office
Prior art keywords
bulb
envelope
base
tongues
welding
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
EP87200277A
Other languages
German (de)
French (fr)
Other versions
EP0235855A1 (en
Inventor
Michel Jacrot
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.)
Compagnie Philips Eclairage
Koninklijke Philips NV
Original Assignee
Compagnie Philips Eclairage
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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 Compagnie Philips Eclairage, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Compagnie Philips Eclairage
Publication of EP0235855A1 publication Critical patent/EP0235855A1/en
Application granted granted Critical
Publication of EP0235855B1 publication Critical patent/EP0235855B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap

Definitions

  • Such a lamp of type H 3 , is known inter alia from French patent FR-A 2,341,197.
  • the lamp has a metal casing from which are cut hook-shaped welding tabs curved projecting from the walls of the 'envelope, placed in the slots of the centering base and subject to cut and folded tabs of the base.
  • the tongues of the envelope of relatively thin thickness cover the relatively thick tabs of the centering base on which said tongues are welded.
  • one of the current inputs is connected to an insulated cable, the other being connected to the metal casing.
  • Such an embodiment can only be used for a lamp of the H3 type.
  • the standardization of lamps of the H3 type does not impose a maximum constraint on the distance between the welding tongues of the metal envelope after welding of the latter to the base. This allows the legs of the centering base to be sufficiently thick to withstand a certain mechanical pressure, during spot welding of the tabs of the envelope.
  • a maximum dimension is imposed on the thickness of the metal envelope of the lamp in an area between the metal centering base and the bulb, said area being adjacent to the ambase. It is therefore not possible to use the structure described in the patent cited above, a structure which is only suitable for standardizing lamps of the H3 type.
  • lamps of the H1 type which are commercially available, have a metal envelope, which passes through a base, of which four cut-out folded square are spot welded on the walls of the metal envelope, the part of the envelope adjacent to the base, located opposite the part carrying the bulb containing a conductive pad coated with an insulating resin and crimped by punching.
  • One of the current inputs is connected to this conductive pad, the other to the metal casing.
  • the insulating material which coats the central stud, tends to be replaced by a ceramic material, a more insulating but also more fragile material.
  • This material cannot be used in a known design of a lamp of the H1 type, since a crimping by punching of a ceramic material introduced into the lower part of the envelope would cause its destruction.
  • the invention aims to provide a lamp of the type described in the preamble whose structure allows, while respecting standards, to improve the assembly of the lamp.
  • the invention aims to indicate, for this lamp, a structure which allows improved isolation of the conductive pad from the base.
  • this object is achieved by the fact that the metal base is provided with a sleeve in which is fixed a conductive pad wrapped in insulating material, that the welding tongues extend essentially in the extension of the metal envelope and are welded to said sleeve.
  • the metal base, the conductive pad and its insulating envelope can be brought as a unit, which simplifies the production of the lamp.
  • the structure of the lamp facilitates the application of a ceramic material as an insulating material.
  • the sleeve of the metal base can serve as a matrix in order to introduce, after arrangement of the central stud, a pulverulent material and possibly a binder, from which is formed by heating a ceramic insulating body which is enclosed in the sleeve .
  • the dimension between the filament and the base is fixed by optical adjustment.
  • the welding tongues of the metal casing easily follow the sleeve of the metal base, so as to easily obtain their relative fixing.
  • the close contact between the base and the tabs allows a better diffusion of the heat released by the sealing of the bulb and the lowering of the temperature of said sealing.
  • the lamp according to FIGS. 1 and 2 has a tubular bulb 1 made of gas-tight glass, for example made of quartz glass, one end of which has a seal 2.
  • Current inputs 3, 11, 9 and 4, 10, 8 pass through the wall of the bulb 1.
  • a helical filament 5 is placed in the bulb 1 and each of its ends is connected to a current input 4, 10, 8, respectively 3, 11, 9.
  • the seal 2 of the bulb 1 is inserted into a tubular metal casing 12, which has a practically rectangular section and which is provided with windows 13 and 14, which are cut by stamping.
  • the window 13 reveals the seal 2 and the window 14 allows the part 3 of the current input 3, 11, 9 to be welded to a conductive pad 15 and provides a tab 25 which, by welding with part 4 of the current input 4, 10, 8, makes it possible to obtain an electrical ground contact for the lamp and a rigid connection between the bulb 1 and the envelope 12, the bulb and the envelope then constituting an assembled part.
  • This assembled part 1, 12 is mounted on a metal centering base 16, provided with a sleeve 19 in which is placed a conductive pad 15 which is coated with insulating material 22.
  • the two tongues 18 which are arranged at the end of the part of the casing 12, opposite the bulb 1, pass through the base 16 and are welded to the sleeve 19.
  • Figure 2 is a section II-II of the lamp of Figure 1. It shows the bulb 1 with its seal 2 pressed into the casing 12. The bulb rests on a neck 20, which positions it relative to the casing 12.
  • the conductive pad 15 passes through the base 16.
  • the sleeve 19, of a practically rectangular section, is produced by stamping, during the shaping of the base.
  • the welding tongues 18 of the metal casing 12 pass through the base 16 by two parallel slots 21 and are in contact with and welded to the sleeve 19.
  • the conductive pad 15 is rigidly connected to the sleeve 19 by a ceramic body 22, which is obtained by pressing, followed by sintering, around the conductive pad.
  • the metal base 16 with its sleeve 19, the conductive pad 15 and the ceramic insulating body 22 thus constitute a unit.
  • FIGS. 3 and 5 show the part made up of the base 16 with the sleeve 19, the stud 15 and the ceramic insulating body 22.
  • Figure 4 shows a detail of the part composed of the bulb 1 mounted on the metal casing 12.
  • the casing 12 is cut so that the straight tongues 18 extend, opposite the bulb, in the extension of the envelope.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Description

L'invention concerne une lampe à incandescence électrique munie

  • -d'une ampoule tubulaire en verre, étanche au gaz, dont au moins une extrémité présente un scellement,
  • -d'entrées de courant qui traversent la paroi de l'ampoule et qui portent un filament hélicoïdal,
    • - d'une enveloppe métallique de section sensiblement rectangulaire dans laquelle est logé un scellement de l'ampoule, l'enveloppe étant munie de languettes de soudage,
    • - d'une embase métallique de centrage à laquelle sont soudées ces languettes, embase qui comporte un trou central et deux fentes contiguës parallèles, dans lesquelles s'étend une languette de soudage.
The invention relates to an electric incandescent lamp provided
  • -a gas-tight tubular glass bulb, at least one end of which has a seal,
  • -current inputs which pass through the wall of the bulb and which carry a helical filament,
    • - a metal envelope of substantially rectangular section in which is housed a sealing of the bulb, the envelope being provided with welding tongues,
    • - a metal centering base to which these tongues are welded, a base which has a central hole and two contiguous parallel slots, in which a welding tongue extends.

Une telle lampe, de type H3, est connue entre autres du brevet français FR-A 2 341 197. La lampe possède une enveloppe métallique dans laquelle sont découpées des languettes de soudage en forme de crochet et courbées en saillie sur des parois de l'enveloppe, placées dans les fentes de l'embase de centrage et assujetties à des pattes découpées et pliées de l'embase. Ainsi les languettes de l'enveloppe d'épaisseur relativement mince recouvrent les pattes relativement épaisses de l'embase de centrage sur lesquelles sont soudées lesdites languettes.Such a lamp, of type H 3 , is known inter alia from French patent FR-A 2,341,197. The lamp has a metal casing from which are cut hook-shaped welding tabs curved projecting from the walls of the 'envelope, placed in the slots of the centering base and subject to cut and folded tabs of the base. Thus the tongues of the envelope of relatively thin thickness cover the relatively thick tabs of the centering base on which said tongues are welded.

Dans le cas de lampes du genre H3, l'une des entrées de courant est connectée à un cable isolé, l'autre étant connectée à l'enveloppe métallique.In the case of lamps of the H3 type, one of the current inputs is connected to an insulated cable, the other being connected to the metal casing.

Une telle forme de réalisation n'est utilisable que pour une lampe du genre H3. En effet, la normalisation des lampes du genre H3, n'impose pas de contrainte de maximum à la distance comprise entre les languettes de soudage de l'enveloppe métallique après soudage de celle-ci à l'embase. Cela permet de réaliser les pattes de l'embase de centrage suffisamment épaisses pour supporter une certaine pression mécanique, lors du soudage par points des languettes de l'enveloppe.Such an embodiment can only be used for a lamp of the H3 type. In fact, the standardization of lamps of the H3 type does not impose a maximum constraint on the distance between the welding tongues of the metal envelope after welding of the latter to the base. This allows the legs of the centering base to be sufficiently thick to withstand a certain mechanical pressure, during spot welding of the tabs of the envelope.

Pour certains genres de lampe, comme par exemple une lampe du genre H1, une côte maximum est imposée à l'épaisseur de l'enveloppe métallique de la lampe dans une zone comprise entre l'embase métallique de centrage et l'ampoule, ladite zone étant adjacente à l'ambase. Il n'est donc pas possible d'utiliser la structure décrite dans le brevet cité ci-dessus, structure qui ne convient que dans la normalisation de lampes du genre H3.For certain types of lamp, such as for example a lamp of the H1 type, a maximum dimension is imposed on the thickness of the metal envelope of the lamp in an area between the metal centering base and the bulb, said area being adjacent to the ambase. It is therefore not possible to use the structure described in the patent cited above, a structure which is only suitable for standardizing lamps of the H3 type.

Pour satisfaire aux exigences de normalisation, les lampes du genre H1, qui sont disponibles dans le commerce, présentent une enveloppe métallique, qui traverse une embase dont quatre découpes repliées en équerre sont soudées par points sur les parois de l'enveloppe métallique, la partie de l'enveloppe adjacente à l'embase, située à l'opposé de la partie portant l'ampoule contenant un plot conducteur enrobé d'une résine isolante et serti par poinçonnage. L'une des entrées de courant est connectée à ce plot conducteur, l'autre à l'enveloppe métallique.To meet the standardization requirements, lamps of the H1 type, which are commercially available, have a metal envelope, which passes through a base, of which four cut-out folded square are spot welded on the walls of the metal envelope, the part of the envelope adjacent to the base, located opposite the part carrying the bulb containing a conductive pad coated with an insulating resin and crimped by punching. One of the current inputs is connected to this conductive pad, the other to the metal casing.

Ces lampes présentent cependant un inconvénient. Dans les lampes à incandescence électrique utilisées dans des systèmes optiques, la position du filament par rapport au système optique est soumise à des tolérances étroites. Avec les lampes H1 connues, ces tolérances sont difficiles à observer, du fait que l'embase métallique est maintenue sans appui par rapport à l'enveloppe métallique, au moment du soudage par points des quatre découpes, et les découpes sont assez épaisses et rigides.However, these lamps have a drawback. In electric incandescent lamps used in optical systems, the position of the filament relative to the optical system is subject to tight tolerances. With known H1 lamps, these tolerances are difficult to observe, since the metal base is held without support relative to the metal envelope, at the time of spot welding of the four cutouts, and the cutouts are quite thick and rigid .

De plus, le matériau isolant, qui enrobe le plot central, tend à être remplacée par un matériau céramique, matériau plus isolant mais également plus fragile. Ce matériau ne peut pas être utilisé dans une conception connue de lampe du genre H1, car un sertissage par poinçonnage d'un matériau céramique introduit dans la partie inférieure de l'enveloppe entrainerait sa destruction.In addition, the insulating material, which coats the central stud, tends to be replaced by a ceramic material, a more insulating but also more fragile material. This material cannot be used in a known design of a lamp of the H1 type, since a crimping by punching of a ceramic material introduced into the lower part of the envelope would cause its destruction.

L'invention vise à fournir une lampe du genre décrit dans le préambule dont la structure permet, tout en respectant les normes, d'améliorer l'assemblage de la lampe. De plus, l'invention vise à indiquer, pour cette lampe, une structure qui permet un isolement amélioré du plot conducteur par rapport à l'embase.The invention aims to provide a lamp of the type described in the preamble whose structure allows, while respecting standards, to improve the assembly of the lamp. In addition, the invention aims to indicate, for this lamp, a structure which allows improved isolation of the conductive pad from the base.

Conformément à l'invention, ce but est atteint du fait que l'embase métallique est munie d'un manchon dans lequel est fixé un plot conducteur enveloppé de matériau isolant, que les languettes de soudage s'étendent essentiellement dans le prolongement de l'enveloppe métallique et sont soudées audit manchon.According to the invention, this object is achieved by the fact that the metal base is provided with a sleeve in which is fixed a conductive pad wrapped in insulating material, that the welding tongues extend essentially in the extension of the metal envelope and are welded to said sleeve.

Lors de l'assemblage de la lampe, l'embase métallique, le plot conducteur et son enveloppe isolante peuvent être amenés comme une unité, ce qui simplifie la réalisation de la lampe. De plus, la structure de la lampe facilite l'application d'un matériau céramique comme matériau isolant. En effet, le manchon de l'embase métallique peut servir de matrice afin d'introduire, après disposition du plot central, un matériau pulvérulent et éventuellement un liant, à partir desquels se forme par chauffage un corps isolant céramique qui est enfermé dans le manchon.When assembling the lamp, the metal base, the conductive pad and its insulating envelope can be brought as a unit, which simplifies the production of the lamp. In addition, the structure of the lamp facilitates the application of a ceramic material as an insulating material. Indeed, the sleeve of the metal base can serve as a matrix in order to introduce, after arrangement of the central stud, a pulverulent material and possibly a binder, from which is formed by heating a ceramic insulating body which is enclosed in the sleeve .

Lors de l'assemblage de l'enveloppe munie de son ampoule et de l'embase, avant le soudage, par exemple le soudage par points, la côte entre le filament et l'embase est fixée par réglage optique. Les languettes de soudage de l'enveloppe métallique épousent facilement le manchon de l'embase métallique, de façon à obtenir facilement leur fixation relative. Le contact étroit entre l'embase et les languettes permet une meilleure diffusion de la chaleur dégagée par le scellement de l'ampoule et l'abaissement de la température dudit scellement.When assembling the envelope provided with its bulb and the base, before welding, for example spot welding, the dimension between the filament and the base is fixed by optical adjustment. The welding tongues of the metal casing easily follow the sleeve of the metal base, so as to easily obtain their relative fixing. The close contact between the base and the tabs allows a better diffusion of the heat released by the sealing of the bulb and the lowering of the temperature of said sealing.

La description ci-après, en se référant aux dessins annexés, le tout donné à titre d'exemple non limitatif, fera bien comprendre comment l'invention peut être réalisée.

  • La figure 1 est une vue latérale d'une lampe conforme à l'invention,
  • la figure 2 est une vue suivant la coupe II-II de la lampe de la figure 1,
  • la figure 3 représente l'embase métallique et le plot central,
  • la figure 4 montre l'enveloppe munie de l'ampoule,
  • la figure 5 est une vue en plan de l'embase et du plot enrobé.
The description below, with reference to the accompanying drawings, all given by way of non-limiting example, will make it clear how the invention can be implemented.
  • FIG. 1 is a side view of a lamp according to the invention,
  • FIG. 2 is a view along section II-II of the lamp of FIG. 1,
  • FIG. 3 represents the metal base and the central stud,
  • FIG. 4 shows the envelope provided with the bulb,
  • Figure 5 is a plan view of the base and the coated stud.

La lampe selon les figures 1 et 2 présente une ampoule tubulaire 1 en verre étanche au gaz, par exemple en verre de quartz, dont une extrémité comporte un scellement 2. Des entrées de courant 3, 11, 9 et 4, 10, 8 traversent la paroi de l'ampoule 1. D'une façon longitudinale, un filament hélicoïdal 5 est disposé dans l'ampoule 1 et chacune de ses extrémités est reliée à une entrée de courant 4, 10, 8, respectivement 3, 11, 9. Le scellement 2 de l'ampoule 1 est inséré dans une enveloppe métallique tubulaire 12, qui présente une section pratiquement rectangulaire et qui est munie de fenêtres 13 et 14, qui sont découpées par emboutissage. La fenêtre 13 laisse apparaître le scellement 2 et la fenêtre 14 permet de souder la partie 3 de l'entrée de courant 3, 11, 9 sur un plot conducteur 15 et fournit une languette 25 qui, par soudage avec une partie 4 de l'entrée de courant 4, 10, 8, permet d'obtenir un contact de masse électrique pour la lampe et une liaison rigide entre l'ampoule 1 et l'enveloppe 12, l'ampoule et l'enveloppe constituant alors une pièce assemblée. Cette pièce assemblée 1, 12 est montée sur une embase métallique de centrage 16, munie d'un manchon 19 dans lequel est placé un plot conducteur 15 qui est enrobé de matériau isolant 22. Les deux languettes 18 qui sont aménagées en bout de la partie de l'enveloppe 12, à l'opposé de l'ampoule 1, traversent l'embase 16 et sont soudées sur le manchon 19.The lamp according to FIGS. 1 and 2 has a tubular bulb 1 made of gas-tight glass, for example made of quartz glass, one end of which has a seal 2. Current inputs 3, 11, 9 and 4, 10, 8 pass through the wall of the bulb 1. In a longitudinal manner, a helical filament 5 is placed in the bulb 1 and each of its ends is connected to a current input 4, 10, 8, respectively 3, 11, 9. The seal 2 of the bulb 1 is inserted into a tubular metal casing 12, which has a practically rectangular section and which is provided with windows 13 and 14, which are cut by stamping. The window 13 reveals the seal 2 and the window 14 allows the part 3 of the current input 3, 11, 9 to be welded to a conductive pad 15 and provides a tab 25 which, by welding with part 4 of the current input 4, 10, 8, makes it possible to obtain an electrical ground contact for the lamp and a rigid connection between the bulb 1 and the envelope 12, the bulb and the envelope then constituting an assembled part. This assembled part 1, 12 is mounted on a metal centering base 16, provided with a sleeve 19 in which is placed a conductive pad 15 which is coated with insulating material 22. The two tongues 18 which are arranged at the end of the part of the casing 12, opposite the bulb 1, pass through the base 16 and are welded to the sleeve 19.

La figure 2 est une coupe II-II de la lampe de la figure 1. Elle représente l'ampoule 1 avec son scellement 2 enfoncé dans l'enveloppe 12. L'ampoule s'appuie sur un col 20, qui la positionne par rapport à l'enveloppe 12. Le plot conducteur 15 traverse l'embase 16. Le manchon 19, d'une section pratiquement rectangulaire, est réalisé par emboutissage, pendant la mise en forme de l'embase. Les languettes de soudage 18 de l'enveloppe métallique 12 traversent l'embase 16 par deux fentes parallèles 21 et sont en contact avec et soudées sur le manchon 19. Le plot conducteur 15 est relié rigidement au manchon 19 par un corps céramique 22, qui est obtenu par pressage, suivi d'un frittage, autour de plot conducteur. L'embase métallique 16 avec son manchon 19, le plot conducteur 15 et le corps isolant céramique 22 constituent ainsi une unité.Figure 2 is a section II-II of the lamp of Figure 1. It shows the bulb 1 with its seal 2 pressed into the casing 12. The bulb rests on a neck 20, which positions it relative to the casing 12. The conductive pad 15 passes through the base 16. The sleeve 19, of a practically rectangular section, is produced by stamping, during the shaping of the base. The welding tongues 18 of the metal casing 12 pass through the base 16 by two parallel slots 21 and are in contact with and welded to the sleeve 19. The conductive pad 15 is rigidly connected to the sleeve 19 by a ceramic body 22, which is obtained by pressing, followed by sintering, around the conductive pad. The metal base 16 with its sleeve 19, the conductive pad 15 and the ceramic insulating body 22 thus constitute a unit.

Les figures 3 et 5 montrent la pièce composée de l'embase 16 avec le manchon 19, du plot 15 et du corps isolant céramique 22.FIGS. 3 and 5 show the part made up of the base 16 with the sleeve 19, the stud 15 and the ceramic insulating body 22.

La figure 4 montre un détail de la pièce composée de l'ampoule 1 montée sur l'enveloppe métallique 12. L'enveloppe 12 est découpée de façon que les languettes droites 18 s'étendent, à l'opposé de l'ampoule, dans le prolongement de l'enveloppe.Figure 4 shows a detail of the part composed of the bulb 1 mounted on the metal casing 12. The casing 12 is cut so that the straight tongues 18 extend, opposite the bulb, in the extension of the envelope.

Claims (2)

1. An electric incandescent lamp provided with
- a tubular gas-tight glass bulb (1), of which at least one end has a seal (2),
- current supply conductors (8, 9) traversing the wall of the bulb and carrying a helical filament (5),
- a metallic envelope (12) having a substantially rectangular cross-section, in which the seal (2) of the bulb is accommodated, the envelope being provided with welding tongues (18),
- a metallic centering base plate (16) to which these tongues are welded and which has a central hole and two contiguous parallel gaps (21) in each of which a welding tongue extends,
characterized in that the metallic base plate is provided with a sleeve (19) in which a conducting contact (15) is fixed, which is enveloped in an insulating material (22), while the welding tongues (18) extend mainly in the prolonged part of the metallic envelope (12) and are welded to the said sleeve.
2. An incandescent lamp as claimed in claim 1, characterized in that the insulating material enveloping the conducting contact is a ceramic material.
EP87200277A 1986-02-25 1987-02-20 Electric incandescent lamp Expired - Lifetime EP0235855B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8602569 1986-02-25
FR8602569A FR2595006B1 (en) 1986-02-25 1986-02-25 ELECTRIC INCANDESCENT LAMP

Publications (2)

Publication Number Publication Date
EP0235855A1 EP0235855A1 (en) 1987-09-09
EP0235855B1 true EP0235855B1 (en) 1990-05-16

Family

ID=9332499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87200277A Expired - Lifetime EP0235855B1 (en) 1986-02-25 1987-02-20 Electric incandescent lamp

Country Status (5)

Country Link
US (1) US4843276A (en)
EP (1) EP0235855B1 (en)
JP (1) JPS62200650A (en)
DE (1) DE3762786D1 (en)
FR (1) FR2595006B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921726A1 (en) * 1989-07-01 1991-01-10 Philips Patentverwaltung ELECTRIC BULB
FR2661276A1 (en) * 1990-04-24 1991-10-25 Philips Eclairage Lamp with a luminous body fitted into a case
HU205491B (en) * 1990-04-28 1992-04-28 Tungsram Reszvenytarsasag Light source provided with reflector
DE19602625A1 (en) * 1996-01-25 1997-07-31 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric lamp
DE102004006439A1 (en) * 2004-02-09 2005-08-25 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Vehicle headlight lamp
DE102004006438A1 (en) 2004-02-09 2005-08-25 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Vehicle headlamp
DE102007003491B4 (en) * 2007-01-24 2017-11-16 Osram Gmbh lamp
DE102018201068B4 (en) * 2018-01-24 2020-08-20 Osram Gmbh BULB FOR VEHICLE HEADLIGHTS AND MANUFACTURING PROCESSES

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1379369A (en) * 1963-01-11 1964-11-20 Philips Nv Electric lamp fitted with an alignment ring
DE2605433C3 (en) * 1976-02-12 1979-01-25 Philips Patentverwaltung Gmbh, 2000 Hamburg Electric light bulb with centering ring
DE8121528U1 (en) * 1981-07-22 1982-11-18 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München TWO-THREAD HALOGEN BULB FOR MOTOR VEHICLE HEADLIGHTS
DE3221290A1 (en) * 1982-06-05 1983-12-08 Philips Patentverwaltung Gmbh, 2000 Hamburg ELECTRIC LAMP WITH A SOCKET-BASED BASE
US4622486A (en) * 1983-10-31 1986-11-11 Ichikoh Industries, Limited Halogen lamp device for headlamp

Also Published As

Publication number Publication date
DE3762786D1 (en) 1990-06-21
JPS62200650A (en) 1987-09-04
FR2595006A1 (en) 1987-08-28
EP0235855A1 (en) 1987-09-09
FR2595006B1 (en) 1988-05-06
US4843276A (en) 1989-06-27

Similar Documents

Publication Publication Date Title
EP0235855B1 (en) Electric incandescent lamp
FR2510824A1 (en) ADAPTER FOR LOW VOLTAGE LAMP
WO1996030773A1 (en) Electrical current sensor
US4370587A (en) Lamp/reflector unit
US6005336A (en) Electric vehicle lamp with inserted insulation plug
FR2747848A1 (en) PLUG CONNECTOR FOR A CABLE TO AT LEAST ONE CONDUCTOR
FR2772983A1 (en) ELECTRIC DISCHARGE BULB DEVICE
EP0619626A1 (en) Electrical connector with a number of connection modules
EP0229549A1 (en) Hermetic coaxial connector
EP0309041B1 (en) Capped electric lamp
EP0378635B1 (en) Ultrastable oscillator operating at atmospheric pressure and in vacuo
FR2628567A3 (en) LOW PRESSURE DISCHARGE LAMP
FR2510317A1 (en) IGNITION CANDLE AND METHOD FOR FIXING RESISTANCE AND CENTRAL ELECTRODE
JPS6196650A (en) Lamp with cap
FR2467485A1 (en) ELECTRIC LAMP COMPRISING A SLEEVE SHAFT
FR2515788A1 (en) ELECTRODE SYSTEM FOR A FUEL OR GAS BURNER
FR2602374A1 (en) Electrical connector
WO2011042283A1 (en) Through-connector for a metal structure, and associated insulating component and metal structure
FR2541816A1 (en) ELECTRIC LAMP HAVING A SELF-FIXABLE SUPPORT AND METHOD FOR MANUFACTURING THE SAME
FR2623021A1 (en) Earthing device for receiver or transmitter antenna of electromagnetic waves, especially for car radio and antenna equipped with such an earthing device
FR2729006A3 (en) ELECTRIC LAMP FOR SECTOR VOLTAGE AND SOCKET FOR THIS LAMP
FR2520943A1 (en) SPARK PLUG WITH OXYGEN DETECTOR
FR2646554A1 (en) MEANS FOR CONNECTING THE PRIMARY WINDINGS OF AN IGNITION COIL, PARTICULARLY FOR AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE
FR2537791A1 (en) Branch-off device for electrical cables
FR2599194A1 (en) INSULATION SLEEVE FOR ELECTRICALLY CONDUCTIVE UNIPOLAR END

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: A1

Designated state(s): BE DE FR GB NL

17P Request for examination filed

Effective date: 19880301

17Q First examination report despatched

Effective date: 19890712

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: N.V. PHILIPS' GLOEILAMPENFABRIEKEN

Owner name: COMPAGNIE PHILIPS ECLAIRAGE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB NL

REF Corresponds to:

Ref document number: 3762786

Country of ref document: DE

Date of ref document: 19900621

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910220

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

Ref country code: BE

Effective date: 19910228

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

Ref country code: NL

Effective date: 19910901

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19911031

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

Ref country code: DE

Effective date: 19911101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST