EP0613172B1 - Single-cap lamp - Google Patents

Single-cap lamp Download PDF

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Publication number
EP0613172B1
EP0613172B1 EP94101619A EP94101619A EP0613172B1 EP 0613172 B1 EP0613172 B1 EP 0613172B1 EP 94101619 A EP94101619 A EP 94101619A EP 94101619 A EP94101619 A EP 94101619A EP 0613172 B1 EP0613172 B1 EP 0613172B1
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EP
European Patent Office
Prior art keywords
cap
lamp
lamp according
electric lamp
bulb
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
EP94101619A
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German (de)
French (fr)
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EP0613172A1 (en
Inventor
Peter Helbig
Ralf Hoffmann
Roland Stark
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
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Publication of EP0613172A1 publication Critical patent/EP0613172A1/en
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Publication of EP0613172B1 publication Critical patent/EP0613172B1/en
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    • 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
    • H01J61/34—Double-wall vessels or containers
    • 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

  • the invention relates to an electric lamp with a base on one side according to the preamble of patent claim 1.
  • a lamp corresponding to the features of the preamble of claim 1 is disclosed, for example, in EP-A 0 498 256.
  • the lamps described in this laid-open document have a lamp holder which consists of an annular or a helically wound metal wire. This metal wire is screwed into the base sleeve of the outer bulb and is welded via an angled end to one of the power leads of the halogen incandescent lamp led out of the lamp bulb.
  • the disadvantage here is that one of the two power supply lines of the halogen incandescent lamp has to assume a holding function. As a result, forces are transmitted to the corresponding pinch seal of the lamp bulb, which, in particular in the event of vibrations during transport, can lead to destruction of the welded connection between the power supply and the molybdenum foil melted into the pinch seal.
  • EP-A 0 435 393 discloses a halogen incandescent lamp which is mounted within a reflector equipped with a screw base.
  • a lamp holder is used to hold the halogen incandescent lamp, which clamps around the pinch foot of the lamp bulb and is fixed to projections in the neck area of the reflector body by means of angled tabs or tongues.
  • This type of anchoring of the lamp holder in the neck area of the reflector has the serious disadvantage that it requires a relatively large overall length of the lamp. Because of this disadvantage, such reflector lamps cannot readily be used as a replacement for general-purpose incandescent lamps in lamps with a screw socket.
  • the halogen incandescent lamp is held within the outer bulb by means of a lamp holder which is formed from a sheet metal part which clamps the lamp bulb of the halogen incandescent lamp and which is fixed in the base on the inner wall of the base sleeve.
  • a lamp holder which is formed from a sheet metal part which clamps the lamp bulb of the halogen incandescent lamp and which is fixed in the base on the inner wall of the base sleeve.
  • these measures enable the halogen incandescent lamp to be held securely in the outer bulb without jarring it, without stressing its power supplies.
  • the lamps according to the invention Due to the fastening of the lamp holder within the base, the lamps according to the invention have a relatively short overall length, which corresponds approximately to that of conventional light bulbs.
  • Suitable bases for the lamps according to the invention are the screw or bayonet bases customary for general-purpose incandescent lamps. Therefore, the lamps of the invention can be used in all lights that were originally only intended for
  • the halogen incandescent lamp is advantageously held by the lamp holder on a pinch seal, since this area of the lamp bulb plays an insignificant role for the light radiation from the lamp and simple installation is possible here.
  • the upper part of the lamp holder facing the lamp bulb has several tabs or holding pliers which enclose the pinch seal of the halogen incandescent lamp with a clamping effect.
  • the tabs or holding tongs of the lamp holder are provided with notches, into which fit-shaped webs of the pinch seal engage, in order to further improve the fixation of the lamp bulb to the lamp holder.
  • the lower part of the lamp holder is tubular, engages in the base and lies against the inner wall of the base sleeve. In this way, a play-free seat of the lamp holder in the base sleeve and a male alignment of the halogen lamp in the outer bulb are guaranteed.
  • the lower part of the lamp holder is welded to the base sleeve, possibly by means of a spacer, or is equipped with a thread that allows the lamp holder to be screwed into the base sleeve.
  • the latter embodiment is particularly suitable for lamps with a screw base.
  • the thread is advantageously formed by isolated, specially shaped knobs or tongues, which are spread apart from the lower part of the lamp holder and claw after screwing into the thread on the inner wall of the base sleeve and thus serve to prevent it from unscrewing.
  • the lamp holder has at least one angled tab, which serves as a depth stop when the lamp holder is screwed into the base sleeve and defines the vertical position of the halogen incandescent lamp in the outer bulb.
  • the lamp holder has a locking device for the outer bulb, which allows the outer bulb to be fixed on the base without cement.
  • the lamp bulb 1 shows a first exemplary embodiment of an electric lamp according to the invention. It consists of a high-voltage halogen incandescent lamp with a lamp bulb 1 made of quartz glass, which is arranged axially within a translucent outer bulb 2.
  • the outer bulb 2 has an open neck area 2a which is cemented into the metallic base sleeve 3a of an E14 screw base 3.
  • the lamp bulb 1 is a soffit, that is to say a tubular vessel with two gas-tightly closed squeezing ends 1a, 1b, in which a plurality of axially aligned incandescent filament sections 4 are enclosed. Both squeezing ends have a weak double T-shaped profile.
  • the halogen lamp is on its lamp bulb 1 by means of a one-piece metallic Lamp holder 5 held in the axial position within the outer bulb 2, so that in this first exemplary embodiment one can speak of a near-socket 1a and a distal 1b pinch end of the lamp bulb 1.
  • a power lead 6a, 6b protrudes from each of the squeezing ends 1a, 1b, which are each electrically conductively connected to the incandescent filament sections 4 via a molybdenum foil melt 7.
  • the power supply 6a close to the base establishes an electrically conductive connection between the filament sections 4 and the ground contact 3b of the screw base 3, while the power supply 6b remote from the base brings about electrical contact between the filament sections 4 and the base sleeve 3a via a return 8 and the lamp holder 5.
  • the return 8 is welded to the lamp holder 5 and an angled end of the power supply 6b remote from the base.
  • the return 8 is designed as a fuse.
  • the lamp holder 5 consists of a stamped sheet metal part made of Hilumin (nickel-plated steel sheet) with a thickness of approx. 0.4 mm.
  • Figure 2a shows the lamp holder 5 immediately after punching out, before the final shaping process.
  • the lamp holder 5 has a tube-shaped lower part 5a, which after installation is completely sunk into the interior of the base 3 and abuts the inner wall of the base sleeve 3a.
  • the upper part of the lamp holder 5 is formed by two holding pliers 5b, 5c, which are integrally formed on the lower part 5a and enclose the narrow end faces of the pinch end 1a close to the base (FIG. 2c).
  • the holding tongs 5b, 5c are each provided with two notches 9 on their edge.
  • notches 9 there are engaging webs 10, which are shaped to fit and run transversely to the lamp axis and are located on the surface of the pinch end 1 a near the base.
  • the pinch end 1a near the base is additionally fixed in the axial direction between the holding pliers 5b, 5c.
  • the outer wall of the tubular lower part 5a has three knobs 5d, which form an interrupted thread matched to the thread pitch of the E14 screw base, and enable the lamp holder 5 to be screwed or screwed into the base sleeve 3a (FIG. 2b).
  • the knobs 5d are rounded in the screwing-in direction in order to facilitate screwing into the base sleeve 3a, while they are delimited by sharp edges in the opposite direction in order to make it difficult to unscrew the lamp holder 5 from the base sleeve 3a.
  • the lower part 5a is provided with three molded, angled tabs 11 which, after the lamp carrier 5 has been screwed into the base sleeve 3a, rest on a shoulder 3c of the base sleeve 3a. These angled tabs 11 together with the paragraph 3c form one Depth stop, which defines the vertical position of the halogen incandescent lamp held in the lamp holder 5 within the outer bulb 2.
  • the shoulder 3c in the interior of the base sleeve 3a serves not only the lamp holder 5, but also the neck region 2a of the outer bulb 2 cemented in the base sleeve 3a as a stop.
  • the dimensions of the outer bulb 2 correspond approximately to the dimensions of a general-purpose incandescent lamp equipped with an E14 screw base.
  • the second exemplary embodiment of the lamp according to the invention differs from the first exemplary embodiment described above only by a detail on the lamp carrier 5 '.
  • the lamp holder 5 '(FIG. 3a) of the second exemplary embodiment has, instead of knobs, three tongues 5d' which are molded onto the tubular lower part 5a 'of the lamp holder 5' and spread outwards. These three tongues 5d 'are arranged along a thread, the pitch of which is matched to that of the E14 thread of the base sleeve 3a. They form an interrupted thread that enables the lamp holder 5 'to be screwed into the base sleeve 3a.
  • the second embodiment corresponds to the first.
  • the lamp holder 5 ' according to the second exemplary embodiment also has two holding pliers 5b' with notches 9 'and tabs 11' angled from the lower part 5a ', the function of which was explained in more detail above in the first exemplary embodiment.
  • FIGS. 4a and 4b show the lamp holder 5 "according to a third embodiment.
  • FIG. 4a shows the punched lamp holder 5" before the final shaping process.
  • the third exemplary embodiment differs from the first two exemplary embodiments only by the lamp holder 5 ".
  • the lamp according to the third exemplary embodiment corresponds to the first two exemplary embodiments described above.
  • the lamp holder 5" here also consists of a stamped sheet metal part. It has a tube-shaped lower part 5a ", which is sunk into the screw base 3 after assembly and on the inner wall the base sleeve 3a rests. Two holding parts 13 are molded onto the lower part 5a ′′ via a connecting web 12 in each case.
  • Each of the two holding parts 13 forms a circular ring segment, the diameter of which corresponds to that of the tubular lower part 5a ′′.
  • Both holding parts 13 each have two inward fastening tabs 14, between which the pinch end 1 a of the high-voltage halogen incandescent lamp which is close to the base is clamped.
  • the fastening tabs 14 are each provided with a notch 9 ′′, which are matched to the webs 10 running transversely to the lamp axis at the pinch end 1 a of the halogen incandescent lamp '' which, after assembly, rest on the shoulder 3c of the base sleeve 3a and serve as a depth stop for the lamp holder 5 ''.
  • these tabs are welded to the socket sleeve 3a, in particular to the heel 3c, after inserting the halogen incandescent lamp held in the lamp holder 5 ′′ into the screw base 3.
  • One of the two holding parts 13 is also welded to the return 8, so that an electrically conductive connection is established between the power supply 6b remote from the base and the base sleeve 3a.
  • FIG. 5 shows a fourth exemplary embodiment of an electric lamp with a base on one side according to the invention.
  • the essential difference from the first three exemplary embodiments is that in this exemplary embodiment, instead of a tubular lamp, a high-voltage halogen incandescent lamp with a lamp bulb 20 that is only pinched on one side is used.
  • the lamp bulb 20 is made of quartz glass and has a gas-tightly closed pinch end 20a.
  • Two power leads 21, 22 protrude from the crimping end 20a, each of which is electrically conductively connected to the luminous element of the halogen incandescent lamp via a molybdenum foil 23 melted into the crimping end 20a.
  • the luminous element consists of a plurality of incandescent filament sections 24 which are connected to one another in an electrically conductive manner.
  • the pinch end 20a has a weakly double T-shaped profile.
  • the halogen incandescent lamp is held in an axial position within the outer bulb 2 by means of a one-piece lamp holder 25, which clamps the pinching end 20a of the lamp bulb 20 and is fixed to the base sleeve.
  • the outer bulb 2 is cemented with its neck region 2a into the metallic base sleeve 3a of an E14 screw base 3.
  • the screw base 3 and the outer bulb 2 of this fourth embodiment correspond to those of the exemplary embodiments described above and therefore have the same reference symbols in FIG.
  • a first power supply line 21 is welded to the lamp support 25 via an angled end and makes electrical contact with the base sleeve 3a, while the other power supply line 22 is electrically conductively connected to the bottom contact 3b of the screw base 3 via a fuse 26.
  • FIGS. 6a and 6b Details of the lamp holder 25 of this fourth exemplary embodiment are shown in FIGS. 6a and 6b.
  • the lamp holder 25 consists of a stamped sheet metal part made of Hilumin (nickel-plated steel sheet).
  • FIG. 6a shows the punched-out lamp holder 25 before the final shaping process.
  • the lamp support 25 has a tubular or circular-cylindrical lower part 25a, which is sunk into the screw base 3 after assembly and bears against the inner wall of the base sleeve 3a.
  • Two holding parts 25b are molded onto the lower part 25a via a connecting web 26 in each case. Both holding parts 25b each form a circular ring segment, the diameter of which corresponds to that of the tubular lower part 25a.
  • each of the two holding parts 25b has two inwardly directed fastening tabs 27, between which the pinch end 20a of the halogen incandescent lamp is clamped.
  • the lower part 25a of the lamp holder 25 has three tongues 28 which are arranged along a thread whose pitch is matched to that of the E14 thread of the base sleeve 3a.
  • the free ends of these tongues 28 point upward when the lamp, as in FIG. 5, is oriented with the screw base 3 downward.
  • the tongues 28 form an interrupted thread that enables the lamp holder 25 to be screwed into the base sleeve 3a.
  • the tapered, sharp-edged free ends of the tongues 28 claw in the thread on the inner wall of the base sleeve 3a, so that unscrewing is made difficult.
  • the lamp support 25 is provided with two angled tabs 29 which, after assembly, rest on the shoulder 3c of the base sleeve 3a and serve as a depth stop.
  • FIG. 7 schematically shows a fifth exemplary embodiment of an electric lamp according to the invention. It consists of a high-voltage halogen incandescent lamp pinched on one side with a lamp bulb 41 made of quartz glass, which is arranged axially within a translucent, cylindrical outer bulb 42.
  • the outer bulb 42 has an open end with a narrowed neck region 42a which is cemented into the socket sleeve 43a of a B22d bayonet socket 43.
  • a luminous element consisting of a plurality of incandescent filament sections 44 which are electrically conductively connected to one another.
  • Two power leads (not visible in FIG.
  • a metal lamp holder 48 in which the pinched end 41a of the halogen lamp is fixed, holds the halogen lamp.
  • the lamp holder 48 consists of a nickel-plated stamped sheet metal part (thickness approx. 0.4 mm) and has a tubular lower part 48a which engages in an annular spacer 49 and is welded to it.
  • the annular spacer 49 has a channel-like profile. Its upward curved outer edge is welded to the base sleeve 43a.
  • the narrowed neck area 42a of the outer bulb 42 lies on the bottom of the spacer 49 and is fastened there by means of putty 50.
  • Two holding parts 51a, 51b each with two fastening tabs 52 directed inwards, are molded onto the tubular lower part 48a of the lamp holder 48.
  • the crimping end 41a of the halogen incandescent lamp is held between the two holding parts 51a, 51b after assembly.
  • the inward fastening tabs 52 press against the broad sides of the pinch end 41a.
  • the fastening tabs 52 have notches 53, into which a web 54, which is integrally formed on the crimping end 41a, engages so that the halogen incandescent lamp is fixed in the axial direction.
  • the holding parts 51a, 51b engage in the double-T-shaped profile of the pinch end 41a in such a way that an axial alignment of the halogen incandescent lamp in the outer bulb 42 is ensured.
  • FIGS. 7, 8a and 8b show a sixth embodiment of an electric lamp according to the invention. This embodiment corresponds in many details to that of the fifth embodiment. For this reason, identical parts in FIGS. 7, 8a and 8b also have the same reference symbols in both exemplary embodiments.
  • the working examples five and six differ only in the base, the lamp holder and the shape of the open end 42a ′ of the outer bulb 42.
  • the base 43 ' is an E27 screw base.
  • One of the current leads protruding from the squeezing end 41a is electrically conductively connected to the metallic base sleeve 43a 'via a fuse 46a and a lead wire 47a, while the other current lead 47b, also via a fuse 46b, is led to the ground contact 43b' of the base 43 '.
  • the high-voltage halogen incandescent lamp is identical to that of the previous exemplary embodiment and is held by the lamp holder 48 '.
  • the lamp holder 48 ' consists of a stamped sheet metal part (thickness: 0.4 mm) and has a tubular lower part 48a', to which two holding parts 51a, 51b are formed, between which the pinch end 41a of the halogen incandescent lamp is fixed. These holding parts 51a, 51b correspond to those of the fifth exemplary embodiment in all details.
  • the lower part 48a 'of the lamp holder 48' engages in the annular spacer 49 'and is welded to it, as already described in the previous exemplary embodiment.
  • the spacer 49 ' also has a channel-like profile here and is also welded to the inner wall of the base sleeve 43a'.
  • the spacer 49 ′ has a horizontally running contact surface 57 for the outer bulb 42.
  • the outer bulb 42 is fastened here in the sixth exemplary embodiment without using cement on the base 43 '.
  • six catch springs 55 are used, which are arranged on the lower part 48a' of the lamp holder 48 'evenly along its circumference. These detent springs 55 protrude from the lateral surface of the lower part 48a '. Since the diameter of the outer bulb opening 42a 'is only slightly larger than the diameter of the lower part 48a', the outer bulb 42 slides over the lamp holder 48 'when it is sockets, briefly presses the detent springs 55 back and snaps between the detent springs 55 and the bearing surface 57 of the spacer 49 'a.
  • the six detent springs 55 of which only three are shown in FIG. 8b, and the contact surface 57 enable a cementless connection between the outer bulb 42 and the base 43 '.
  • the lower part 48a 'of the lamp holder 48' has two lugs 56 protruding from its outer surface and the outer bulb in the region of its opening 42a 'has two Notches matched to the lugs 56, which together form an anti-rotation device for the outer piston 42, so that rotations of the outer piston 42 about its axis are prevented.
  • the invention is not limited to the exemplary embodiments described in more detail above.
  • the lamp holder of the third exemplary embodiment can also be used together with a bayonet base.

Description

Die Erfindung betrifft eine einseitig gesockelte elektrische Lampe gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to an electric lamp with a base on one side according to the preamble of patent claim 1.

Insbesondere handelt es sich hierbei um Hochvolt-Halogenglühlampen, die ohne vorgeschalteten Transformator direkt an der Netzspannung betrieben werden können, und die in einem mit einem Schraub- oder Bajonettsockel ausgestatteten Außenkolben montiert sind. Dadurch können sie in Leuchten eingesetzt werden, die ursprünglich nur für den Betrieb mit Allgebrauchsglühlampen konstruiert worden waren.In particular, these are high-voltage halogen incandescent lamps that can be operated directly from the mains voltage without an upstream transformer, and which are mounted in an outer bulb equipped with a screw or bayonet base. This means that they can be used in luminaires that were originally only designed for use with general-purpose incandescent lamps.

Eine den Merkmalen des Oberbegriffs des Patentanspruchs 1 entsprechende Lampe ist beispielsweise in der EP-A 0 498 256 offenbart. Die in dieser Offenlegungsschrift beschriebenen Lampen besitzen einen Lampenträger, der aus einem ringförmigen oder einem schraubenlinienartig gewundenen Metalldraht besteht. Dieser Metalldraht ist in die Sockelhülse des Außenkolbens eingedreht und über ein abgewinkeltes Ende mit einer der aus dem Lampenkolben herausgeführten Stromzuführungen der Halogenglühlampe verschweißt.A lamp corresponding to the features of the preamble of claim 1 is disclosed, for example, in EP-A 0 498 256. The lamps described in this laid-open document have a lamp holder which consists of an annular or a helically wound metal wire. This metal wire is screwed into the base sleeve of the outer bulb and is welded via an angled end to one of the power leads of the halogen incandescent lamp led out of the lamp bulb.

Nachteilig wirkt sich hierbei aus, daß eine der beiden Stromzuführungen der Halogenglühlampe eine Halterungsfunktion übernehmen muß. Dadurch werden Kräfte auf die entsprechende Quetschdichtung des Lampenkolbens übertragen, die, insbesondere bei Erschütterungen wahrend des Transportes, zu einer Zerstörung der Schweißverbindung zwischen der Stromzuführung und der in der Quetschdichtung eingeschmolzenen Molybdänfolie führen können.The disadvantage here is that one of the two power supply lines of the halogen incandescent lamp has to assume a holding function. As a result, forces are transmitted to the corresponding pinch seal of the lamp bulb, which, in particular in the event of vibrations during transport, can lead to destruction of the welded connection between the power supply and the molybdenum foil melted into the pinch seal.

Die EP-A 0 435 393 offenbart eine Halogenglühlampe, die innerhalb eines mit einem Schraubsockel ausgerüsteten Reflektors montiert ist. Zur Halterung der Halogenglühlampe wird ein Lampenträger verwendet, der den Quetschfuß des Lampenkolbens klemmend umschließt und mittels abgewinkelter Laschen oder Zungen an Vorsprüngen im Halsbereich des Reflektorkörpers fixiert ist. Diese Art der Verankerung des Lampenträgers im Halsbereich des Reflektors hat den gravierenden Nachteil, daß sie eine relativ große Baulänge der Lampe erfordert. Aufgrund dieses Nachteils können derartige Reflektorlampen nicht ohne weiteres als Ersatz für Allgebrauchsglühlampen in Leuchten mit Schraubfassung verwendet werden.EP-A 0 435 393 discloses a halogen incandescent lamp which is mounted within a reflector equipped with a screw base. A lamp holder is used to hold the halogen incandescent lamp, which clamps around the pinch foot of the lamp bulb and is fixed to projections in the neck area of the reflector body by means of angled tabs or tongues. This type of anchoring of the lamp holder in the neck area of the reflector has the serious disadvantage that it requires a relatively large overall length of the lamp. Because of this disadvantage, such reflector lamps cannot readily be used as a replacement for general-purpose incandescent lamps in lamps with a screw socket.

Es ist die Aufgabe der Erfindung, eine einseitig gesockelte elektrische Lampe, bestehend aus einer Halogenglühlampe mit Außenkolben und Sockel gemäß dem Oberbegriff des Patentanspruchs 1 bereitzustellen, die der Halogenglühlampe eine möglichst erschütterungssichere Halterung innerhalb des Außenkolbens bietet, ohne deren Stromzuführungen zu belasten, und die als Ersatz für eine Allgebrauchsglühlampe verwendbar ist.It is the object of the invention to provide a capped electric lamp consisting of a halogen incandescent lamp with an outer bulb and base according to the preamble of claim 1, which offers the halogen incandescent holder as vibration-proof as possible within the outer bulb without stressing its power supply lines, and as Can be used as a replacement for an ordinary light bulb.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Besonders vorteilhafte Ausführungen finden sich in den abhängigen Ansprüchen.This object is achieved by the characterizing features of claim 1. Particularly advantageous designs can be found in the dependent claims.

Die Halogenglühlampe wird innerhalb des Außenkolbens mittels eines Lampenträgers gehaltert, der aus einem Blechteil geformt ist, das den Lampenkolben der Halogenglühlampe klemmend umschließt, und das im Sockel, an der Innenwand der Sockelhülse fixiert ist. Diese Maßnahmen ermöglichen bei den erfindungsgemäßen Lampen einen erschütterungssicheren Halt der Halogenglühlampe im Außenkolben, ohne deren Stromzuführungen zu belasten. Durch die Befestigung des Lampenträgers innerhalb des Sockels besitzen die erfindungsgemäßen Lampen eine relativ kurze Baulänge, die ungefähr der von Allgebrauchsglühlampen entspricht. Als Sockel für die erfindungsgemäßen Lampen kommen die für Allgebrauchsglühlampen üblichen Schraub- oder Bajonettsockel in Frage. Deshalb können die erfindungsgemäßen Lampen in allen Leuchten eingesetzt werden, die ursprünglich nur für den Betrieb mit Allgebrauchsglühlampen vorgesehen waren. Die erfindungsgemäßen Lampen bieten gegenüber Allgebrauchsglühlampen eine höhere Lichtausbeute.The halogen incandescent lamp is held within the outer bulb by means of a lamp holder which is formed from a sheet metal part which clamps the lamp bulb of the halogen incandescent lamp and which is fixed in the base on the inner wall of the base sleeve. With the lamps according to the invention, these measures enable the halogen incandescent lamp to be held securely in the outer bulb without jarring it, without stressing its power supplies. Due to the fastening of the lamp holder within the base, the lamps according to the invention have a relatively short overall length, which corresponds approximately to that of conventional light bulbs. Suitable bases for the lamps according to the invention are the screw or bayonet bases customary for general-purpose incandescent lamps. Therefore, the lamps of the invention can be used in all lights that were originally only intended for use with general-purpose incandescent lamps. The lamps according to the invention offer a higher luminous efficacy compared to incandescent lamps.

Vorteilhafterweise wird die Halogenglühlampe vom Lampenträger an einer Quetschdichtung gehaltert, da dieser Bereich des Lampenkolbens für die Lichtabstrahlung der Lampe eine unbedeutende Rolle spielt und hier eine einfache Montage möglich ist.The halogen incandescent lamp is advantageously held by the lamp holder on a pinch seal, since this area of the lamp bulb plays an insignificant role for the light radiation from the lamp and simple installation is possible here.

Das dem Lampenkolben zugewandte Oberteil des Lampenträgers besitzt mehrere Laschen oder Haltezangen, die die Quetschdichtung der Halogenglühlampe mit Klemmwirkung umschließen. Vorteilhafterweise sind die Laschen bzw. Haltezangen des Lampenträgers mit Kerben versehen, in die paßgerecht geformte Stege der Quetschdichtung eingreifen, um so die Fixierung des Lampenkolbens am Lampenträger weiter zu verbessern.The upper part of the lamp holder facing the lamp bulb has several tabs or holding pliers which enclose the pinch seal of the halogen incandescent lamp with a clamping effect. Advantageously, the tabs or holding tongs of the lamp holder are provided with notches, into which fit-shaped webs of the pinch seal engage, in order to further improve the fixation of the lamp bulb to the lamp holder.

Das Unterteil des Lampenträgers ist rohrartig ausgebildet, greift in den Sockel hinein und liegt an der Innenwand der Sockelhülse an. Auf diese Weise werden ein spielfreier Sitz des Lampenträgers in der Sockelhülse und eine male Ausrichtung der Halogenglühlampe im Außenkolben gewährleistet. Zur Verankerung des Lampenträgers in der Sockelhülse ist das Unterteil des Lampenträgers, eventuell mittels eines Abstandshalters, mit der Sockelhülse verschweißt oder aber mit einem Gewindegang ausgestattet, der es erlaubt, den Lampenträger in die Sockelhülse einzuschrauben. Die letztgenannte Ausführungsform eignet sich besonders für Lampen mit Schraubsockel. Der Gewindegang wird dabei vorteilhafterweise von vereinzelten, speziell geformten Noppen oder Zungen gebildet, die vom Unterteil des Lampenträgers abgespreizt sind und sich nach dem Einschrauben im Gewinde an der Innenwand der Sockelhülse verkrallen und so als Ausdrehsicherung dienen.The lower part of the lamp holder is tubular, engages in the base and lies against the inner wall of the base sleeve. In this way, a play-free seat of the lamp holder in the base sleeve and a male alignment of the halogen lamp in the outer bulb are guaranteed. To anchor the lamp holder in the base sleeve, the lower part of the lamp holder is welded to the base sleeve, possibly by means of a spacer, or is equipped with a thread that allows the lamp holder to be screwed into the base sleeve. The latter embodiment is particularly suitable for lamps with a screw base. The thread is advantageously formed by isolated, specially shaped knobs or tongues, which are spread apart from the lower part of the lamp holder and claw after screwing into the thread on the inner wall of the base sleeve and thus serve to prevent it from unscrewing.

Zusätzlich weisen bei einigen bevorzugten Ausführungsformen die Lampenträger wenigstens eine abgewinkelte Lasche auf, die beim Eindrehen des Lampenträgers in die Sockelhülse als Tiefenanschlag dient und die vertikale Position der Halogenglühlampe im Außenkolben festlegt. Bei einem weiteren bevorzugten Ausführungsbeispiel besitzt der Lampenträger eine Arretiervorrichtung für den Außenkolben, die eine kittlose Fixierung des Außenkolbens am Sockel erlaubt.In addition, in some preferred embodiments, the lamp holder has at least one angled tab, which serves as a depth stop when the lamp holder is screwed into the base sleeve and defines the vertical position of the halogen incandescent lamp in the outer bulb. In a further preferred exemplary embodiment, the lamp holder has a locking device for the outer bulb, which allows the outer bulb to be fixed on the base without cement.

Die Erfindung wird nachstehend anhand mehrerer bevorzugter Ausführungsbeispiele näher erläutert. Es zeigen:

Figur 1
eine Seitenansicht (teilweise geschnitten) einer erfindungsgemäßen Lampe entsprechend einem ersten Ausführungsbeispiel
Figur 2a
den Lampenträger gemäß des ersten Ausführungsbeispiels
Figur 2b
das Unterteil des Lampenträgers gemäß des ersten Ausführungsbeispiels und dessen Fixierung in der Sockelhülse
Figur 2c
einen Querschnitt (A-A) durch das Oberteil des Lampenträgers gemäß des ersten Ausführungsbeispiels und dessen Befestigung am Quetschende der Halogenglühlampe (ohne Außenkolben und Sockel dargestellt)
Figur 3a
den Lampenträger gemäß eines zweiten Ausführungsbeispiels
Figur 3b
das Unterteil des Lampenträgers gemäß des zweiten Ausführungsbeispiels und dessen Fixierung in der Sockelhülse
Figur 4a
den Lampenträger gemäß eines dritten Ausführungsbeispiels
Figur 4b
einen Querschnitt durch das Oberteil des Lampenträgers gemäß des dritten Ausführungsbeispiels und dessen Fixierung am Quetschende der Halogenglühlampe.
Figur 5
eine Seitenansicht (teilweise geschnitten) einer erfindungsgemäßen Lampe entsprechend eines vierten Ausführungsbeispiels
Figur 6a
den Lampenträger gemäß des vierten Ausführungsbeispiels
Figur 6b
einen Querschnitt durch das Oberteil des Lampenträgers gemäß des vierten Ausführungsbeispiels und dessen Fixierung am Quetschende der Halogenglühlampe.
Figur 7
eine Seitenansicht (teilweise geschnitten) einer erfindungsgemäßen Lampe entsprechend eines fünften Ausführungsbeispiels
Figur 8a
eine Seitenansicht (teilweise geschnitten) einer erfindungsgemäßen Lampe entsprechend eines sechsten Ausführungsbeispiels
Figur 8b
den Lampenträger gemäß des sechsten Ausführungsbeispiels
The invention is explained in more detail below on the basis of several preferred exemplary embodiments. Show it:
Figure 1
a side view (partially cut) of a lamp according to the invention according to a first embodiment
Figure 2a
the lamp holder according to the first embodiment
Figure 2b
the lower part of the lamp holder according to the first embodiment and its fixation in the base sleeve
Figure 2c
a cross section (AA) through the upper part of the lamp holder according to the first embodiment and its attachment to the pinch end of the halogen lamp (shown without outer bulb and base)
Figure 3a
the lamp holder according to a second embodiment
Figure 3b
the lower part of the lamp holder according to the second embodiment and its fixation in the base sleeve
Figure 4a
the lamp holder according to a third embodiment
Figure 4b
a cross section through the upper part of the lamp holder according to the third embodiment and its fixation at the pinch end of the halogen lamp.
Figure 5
a side view (partially cut) of a lamp according to the invention according to a fourth embodiment
Figure 6a
the lamp holder according to the fourth embodiment
Figure 6b
a cross section through the upper part of the lamp holder according to the fourth embodiment and its fixation at the pinch end of the halogen lamp.
Figure 7
a side view (partially cut) of a lamp according to the invention according to a fifth embodiment
Figure 8a
a side view (partially cut) of a lamp according to the invention according to a sixth embodiment
Figure 8b
the lamp holder according to the sixth embodiment

In Figur 1 ist ein erstes Ausführungsbeispiel einer erfindungsgemäßen elektrischen Lampe abgebildet. Sie besteht aus einer Hochvolt-Halogenglühlampe mit einem Lampenkolben 1 aus Quarzglas, der axial innerhalb eines lichtdurchlässigen Außenkolbens 2 angeordnet ist. Der Außenkolben 2 besitzt einen offenen Halsbereich 2a, der in die metallische Sockelhülse 3a eines E14-Schraubsockels 3 eingekittet ist. Bei dem Lampenkolben 1 handelt es sich um eine Soffitte, d.h. um ein rohrartiges Gefäß mit zwei gasdicht verschlossenen Quetschenden 1a, 1b, in dem mehrere axial ausgerichtete, untereinander elektrisch leitend verbundene Glühwendelabschnitte 4 eingeschlossen sind. Beide Quetschenden haben ein schwach doppel-T-förmig ausgeprägtes Profil. Die Halogenglühlampe wird an ihrem Lampenkolben 1 mittels eines einteiligen metallischen Lampenträgers 5 innerhalb des Außenkolbens 2 in axialer Lage gehaltert, so daß man bei diesem ersten Ausführungsbeispiel von einem sockelnahen 1a und einem sockelfernen 1b Quetschende des Lampenkolbens 1 sprechen kann. Aus beiden Quetschenden 1a, 1b ragt jeweils eine Stromzuführung 6a, 6b heraus, die über je eine Molybdänfolieneinschmelzung 7 elektrisch leitend mit den Glühwendelabschnitten 4 verbunden sind. Die sockelnahe Stromzuführung 6a stellt eine elektrisch leitende Verbindung zwischen den Glühwendelabschnitten 4 und dem Bodenkontakt 3b des Schraubsockels 3 her, während die sockelferne Stromzuführung 6b über eine Rückführung 8 und den Lampen träger 5 einen elektrischen Kontakt zwischen den Glühwendelabschnitten 4 und der Sockelhülse 3a herbeiführt. Die Rückführung 8 ist mit dem Lampenträger 5 und einem abgewinkelten Ende der sockelfernen Stromzuführung 6b verschweißt. Außerdem ist die Rückführung 8 als Schmelzsicherung ausgebildet.1 shows a first exemplary embodiment of an electric lamp according to the invention. It consists of a high-voltage halogen incandescent lamp with a lamp bulb 1 made of quartz glass, which is arranged axially within a translucent outer bulb 2. The outer bulb 2 has an open neck area 2a which is cemented into the metallic base sleeve 3a of an E14 screw base 3. The lamp bulb 1 is a soffit, that is to say a tubular vessel with two gas-tightly closed squeezing ends 1a, 1b, in which a plurality of axially aligned incandescent filament sections 4 are enclosed. Both squeezing ends have a weak double T-shaped profile. The halogen lamp is on its lamp bulb 1 by means of a one-piece metallic Lamp holder 5 held in the axial position within the outer bulb 2, so that in this first exemplary embodiment one can speak of a near-socket 1a and a distal 1b pinch end of the lamp bulb 1. A power lead 6a, 6b protrudes from each of the squeezing ends 1a, 1b, which are each electrically conductively connected to the incandescent filament sections 4 via a molybdenum foil melt 7. The power supply 6a close to the base establishes an electrically conductive connection between the filament sections 4 and the ground contact 3b of the screw base 3, while the power supply 6b remote from the base brings about electrical contact between the filament sections 4 and the base sleeve 3a via a return 8 and the lamp holder 5. The return 8 is welded to the lamp holder 5 and an angled end of the power supply 6b remote from the base. In addition, the return 8 is designed as a fuse.

Der Lampenträger 5 besteht aus einem Stanzblechteil aus Hilumin (vernickeltes Stahlblech) mit einer Dicke von ca. 0,4 mm. Figur 2a zeigt den Lampenträger 5 unmittelbar nach dem Ausstanzen, vor dem abschließenden Formgebungsprozeß. Der Lampenträger 5 besitzt ein rohrartig geformtes Unterteil 5a, das nach der Montage vollständig im Innenraum des Sockels 3 versenkt ist und an der Innenwand der Sockelhülse 3a anliegt. Das Oberteil des Lampenträgers 5 wird von zwei Haltezangen 5b, 5c gebildet, die am Unterteil 5a angeformt sind und die schmalen Stirnseiten des sockelnahen Quetschendes 1a klemmend umschließen (Figur 2c). Die Haltezangen 5b, 5c sind an ihrer Kante jeweils mit zwei Kerben 9 versehen. In diese Kerben 9 greifen paßgerecht geformte, quer zur Lampenachse verlaufende Stege 10 ein, die sich auf der Oberfläche des sockelnahen Quetschendes 1a befinden. Dadurch wird das sockelnahe Quetschende 1a zwischen den Haltezangen 5b, 5c in axialer Richtung zusätzlich fixiert. Die Außenwand des rohrartigen Unterteils 5a weist drei Noppen 5d auf, die einen auf die Gewindesteigung des E14-Schraubsockels abgestimmten, unterbrochenen Gewindegang bilden, und ein Eindrehen bzw. Einschrauben des Lampenträgers 5 in die Sockelhülse 3a ermöglichen (Figur 2b). In Einschraubrichtung sind die Noppen 5d, zur Erleichterung des Eindrehens in die Sockelhülse 3a, abgerundet, während sie in Gegenrichtung von scharfen Kanten begrenzt werden, um ein Ausdrehen des Lampenträgers 5 aus der Sockelhülse 3a zu erschweren. Ferner ist das Unterteil 5a mit drei angeformten, abgewinkelten Laschen 11 versehen, die nach dem Eindrehen des Lampenträgers 5 in die Sockelhülse 3a auf einem Absatz 3c der Sockelhülse 3a aufliegen. Diese abgewinkelten Laschen 11 bilden zusammen mit dem Absatz 3c einen Tiefenanschlag, der die vertikale Position der im Lampenträger 5 gehalterten Halogenglühlampe innerhalb des Außenkolbens 2 definiert.The lamp holder 5 consists of a stamped sheet metal part made of Hilumin (nickel-plated steel sheet) with a thickness of approx. 0.4 mm. Figure 2a shows the lamp holder 5 immediately after punching out, before the final shaping process. The lamp holder 5 has a tube-shaped lower part 5a, which after installation is completely sunk into the interior of the base 3 and abuts the inner wall of the base sleeve 3a. The upper part of the lamp holder 5 is formed by two holding pliers 5b, 5c, which are integrally formed on the lower part 5a and enclose the narrow end faces of the pinch end 1a close to the base (FIG. 2c). The holding tongs 5b, 5c are each provided with two notches 9 on their edge. In these notches 9 there are engaging webs 10, which are shaped to fit and run transversely to the lamp axis and are located on the surface of the pinch end 1 a near the base. As a result, the pinch end 1a near the base is additionally fixed in the axial direction between the holding pliers 5b, 5c. The outer wall of the tubular lower part 5a has three knobs 5d, which form an interrupted thread matched to the thread pitch of the E14 screw base, and enable the lamp holder 5 to be screwed or screwed into the base sleeve 3a (FIG. 2b). The knobs 5d are rounded in the screwing-in direction in order to facilitate screwing into the base sleeve 3a, while they are delimited by sharp edges in the opposite direction in order to make it difficult to unscrew the lamp holder 5 from the base sleeve 3a. Furthermore, the lower part 5a is provided with three molded, angled tabs 11 which, after the lamp carrier 5 has been screwed into the base sleeve 3a, rest on a shoulder 3c of the base sleeve 3a. These angled tabs 11 together with the paragraph 3c form one Depth stop, which defines the vertical position of the halogen incandescent lamp held in the lamp holder 5 within the outer bulb 2.

Der Absatz 3c im Innern der Sockelhülse 3a dient nicht nur dem Lampenträger 5, sondern auch dem Halsbereich 2a des in der Sockelhülse 3a eingekitteten Außenkolbens 2 als Anschlag. Die Abmessungen des Außenkolbens 2 entsprechen ungefähr den Abmessungen einer mit einem E14-Schraubsockel ausgestatteten Allgebrauchsglühlampe.The shoulder 3c in the interior of the base sleeve 3a serves not only the lamp holder 5, but also the neck region 2a of the outer bulb 2 cemented in the base sleeve 3a as a stop. The dimensions of the outer bulb 2 correspond approximately to the dimensions of a general-purpose incandescent lamp equipped with an E14 screw base.

Das zweite Ausführungsbeispiel der erfindungsgemäßen Lampe unterscheidet sich vom oben beschriebenen ersten Ausführungsbeispiel nur durch ein Detail am Lampenträger 5'. Der Lampenträger 5' (Figur 3a) des zweiten Ausführungsbeispiels besitzt anstelle von Noppen drei Zungen 5d', die am rohrartigen Unterteil 5a' des Lampenträgers 5' angeformt und nach außen abgespreizt sind. Diese drei Zungen 5d' sind entlang eines Gewindeganges, dessen Steigung auf die des E14-Gewindes der Sockelhülse 3a abgestimmt ist, angeordnet. Sie bilden einen unterbrochenen Gewindegang, der ein Einschrauben des Lampenträgers 5' in die Sockelhülse 3a ermöglicht. Die freien Enden 5e' der Zungen 5d' weisen nach oben, wenn die Lampe wie in Figur 1, mit dem Schraubsockel 3 nach unten, orientiert ist. Beim Einschrauben verkrallen sich die scharfkantig ausgeführten freien Enden 5e' der Zungen 5d' im Gewinde an der Innenwand der Sockelhülse 3a, so daß ein Ausdrehen verhindert wird (Figur 3b).The second exemplary embodiment of the lamp according to the invention differs from the first exemplary embodiment described above only by a detail on the lamp carrier 5 '. The lamp holder 5 '(FIG. 3a) of the second exemplary embodiment has, instead of knobs, three tongues 5d' which are molded onto the tubular lower part 5a 'of the lamp holder 5' and spread outwards. These three tongues 5d 'are arranged along a thread, the pitch of which is matched to that of the E14 thread of the base sleeve 3a. They form an interrupted thread that enables the lamp holder 5 'to be screwed into the base sleeve 3a. The free ends 5e 'of the tongues 5d' point upwards when the lamp is oriented with the screw base 3 downward, as in FIG. When screwing in the sharp-edged free ends 5e 'of the tongues 5d' claw in the thread on the inner wall of the base sleeve 3a, so that unscrewing is prevented (Figure 3b).

In allen anderen Einzelheiten stimmt das zweite Ausführungsbeispiel mit dem ersten überein. Insbesondere besitzt der Lampenträger 5' gemäß des zweiten Ausführungsbeispiels auch zwei Haltezangen 5b' mit Kerben 9' sowie vom Unterteil 5a' abgewinkelte Laschen 11', deren Funktion bereits weiter oben, beim ersten Ausführungsbeispiel näher erläutert wurde.In all other details, the second embodiment corresponds to the first. In particular, the lamp holder 5 'according to the second exemplary embodiment also has two holding pliers 5b' with notches 9 'and tabs 11' angled from the lower part 5a ', the function of which was explained in more detail above in the first exemplary embodiment.

In den Figuren 4a und 4b ist der Lampenträger 5" gemäß eines dritten Ausführungsbeispiels dargestellt. Figur 4a zeigt den ausgestanzten Lampenträger 5" vor dem abschließenden Formgebungsprozeß. Das dritte Ausführungsbeispiel unterscheidet sich von den ersten beiden Ausführungsbeispielen nur durch den Lampenträger 5". In allen anderen Einzelheiten stimmt die Lampe gemäß des dritten Ausführungsbeispiels mit den oben beschriebenen ersten beiden Ausführungsbeispielen überein. Der Lampenträger 5" besteht auch hier aus einem Stanzblechteil. Er besitzt ein rohrartig geformtes Unterteil 5a", das nach der Montage im Schraubsockel 3 versenkt ist und an der Innenwand der Sockelhülse 3a anliegt. An das Unterteil 5a'' sind über jeweils einen Verbindungssteg 12 zwei Halteteile 13 angeformt. Jedes der beiden Halteteile 13 bildet ein Kreisringsegment, dessen Durchmesser mit dem des rohrartigen Unterteils 5a'' übereinstimmt. Beide Halteteile 13 weisen je zwei einwärts gerichtete Befestigungslaschen 14 auf, zwischen denen das sockelnahe Quetschende 1a der Hochvolt-Halogenglühlampe klemmend gehaltert wird. Die Befestigungslaschen 14 sind jeweils mit einer Kerbe 9'' versehen, die paßgerecht auf die quer zur Lampenachse verlaufenden Stege 10 am Quetschende 1a der Halogenglühlampe abgestimmt sind Auf der Höhe der Verbindungsstege 12 ist der Lampenträger 5'' mit zwei abgewinkelten, auswärts gerichteten Laschen 11'' ausgestattet, die nach der Montage auf dem Absatz 3c der Sockelhülse 3a aufliegen und als Tiefenanschlag für den Lampenträger 5'' dienen. Diese Laschen werden bei diesem Ausführungsbeispiel nach dem Einsetzen der im Lampenträger 5'' gehalterten Halogenglühlampe in den Schraubsockel 3 mit der Sokkelhülse 3a, insbesondere mit dem Absatz 3c, verschweißt. Eines der beiden Halteteile 13 ist ferner mit der Rückführung 8 verschweißt, so daß eine elektrisch leitende Verbindung zwischen der sockelfernen Stromzuführung 6b und der Sockelhülse 3a hergestellt wird.FIGS. 4a and 4b show the lamp holder 5 "according to a third embodiment. FIG. 4a shows the punched lamp holder 5" before the final shaping process. The third exemplary embodiment differs from the first two exemplary embodiments only by the lamp holder 5 ". In all other details, the lamp according to the third exemplary embodiment corresponds to the first two exemplary embodiments described above. The lamp holder 5" here also consists of a stamped sheet metal part. It has a tube-shaped lower part 5a ", which is sunk into the screw base 3 after assembly and on the inner wall the base sleeve 3a rests. Two holding parts 13 are molded onto the lower part 5a ″ via a connecting web 12 in each case. Each of the two holding parts 13 forms a circular ring segment, the diameter of which corresponds to that of the tubular lower part 5a ″. Both holding parts 13 each have two inward fastening tabs 14, between which the pinch end 1 a of the high-voltage halogen incandescent lamp which is close to the base is clamped. The fastening tabs 14 are each provided with a notch 9 ″, which are matched to the webs 10 running transversely to the lamp axis at the pinch end 1 a of the halogen incandescent lamp '' which, after assembly, rest on the shoulder 3c of the base sleeve 3a and serve as a depth stop for the lamp holder 5 ''. In this exemplary embodiment, these tabs are welded to the socket sleeve 3a, in particular to the heel 3c, after inserting the halogen incandescent lamp held in the lamp holder 5 ″ into the screw base 3. One of the two holding parts 13 is also welded to the return 8, so that an electrically conductive connection is established between the power supply 6b remote from the base and the base sleeve 3a.

In Figur 5 zeigt ein viertes Ausführungsbeispiel einer erfindungsgemäßen einseitig gesockelten elektrischen Lampe. Der wesentliche Unterschied zu den ersten drei Ausführungsbeispielen besteht darin, daß hier bei diesem Ausführungsbeispiel anstelle einer Soffittenlampe eine Hochvolt-Halogenglühlampe mit einem nur einseitig gequetschten Lampenkolben 20 verwendet wird. Der Lampenkolben 20 ist aus Quarzglas gefertigt und besitzt ein gasdicht verschlossenes Quetschende 20a. Aus dem Quetschende 20a ragen zwei Stromzuführungen 21, 22 heraus, die über jeweils eine im Quetschende 20a eingeschmolzene Molybdänfolie 23 elektrisch leitend mit dem Leuchtkörper der Halogenglühlampe verbunden sind. Der Leuchtkörper besteht aus mehreren Glühwendelabschnitten 24, die untereinander elektrisch leitend verbunden sind. Das Quetschende 20a weist ein schwach doppel-T-förmig ausgeprägtes Profil auf. Die Halogenglühlampe wird mittels eines einteiligen Lampenträgers 25, der das Quetschende 20a des Lampenkolbens 20 klemmend umschließt und an der Sockelhülse fixiert ist, in axialer Lage innerhalb des Außenkolbens 2 gehaltert. Der Außenkolben 2 ist, wie bereits bei den vorherigen Ausführungsbeispielen erläutert, mit seinem Halsbereich 2a in die metallische Sockelhülse 3a eines E14-Schraubsockels 3 eingekittet. Der Schraubsockel 3 und der Außenkolben 2 dieses vierten Ausführungsbeispiels entsprechen denen der oben beschriebenen Ausführungsbeispiele und tragen daher in Figur 5 dieselben Bezugszeichen.FIG. 5 shows a fourth exemplary embodiment of an electric lamp with a base on one side according to the invention. The essential difference from the first three exemplary embodiments is that in this exemplary embodiment, instead of a tubular lamp, a high-voltage halogen incandescent lamp with a lamp bulb 20 that is only pinched on one side is used. The lamp bulb 20 is made of quartz glass and has a gas-tightly closed pinch end 20a. Two power leads 21, 22 protrude from the crimping end 20a, each of which is electrically conductively connected to the luminous element of the halogen incandescent lamp via a molybdenum foil 23 melted into the crimping end 20a. The luminous element consists of a plurality of incandescent filament sections 24 which are connected to one another in an electrically conductive manner. The pinch end 20a has a weakly double T-shaped profile. The halogen incandescent lamp is held in an axial position within the outer bulb 2 by means of a one-piece lamp holder 25, which clamps the pinching end 20a of the lamp bulb 20 and is fixed to the base sleeve. As already explained in the previous exemplary embodiments, the outer bulb 2 is cemented with its neck region 2a into the metallic base sleeve 3a of an E14 screw base 3. The screw base 3 and the outer bulb 2 of this fourth embodiment correspond to those of the exemplary embodiments described above and therefore have the same reference symbols in FIG.

Eine erste Stromzuführung 21 ist über ein abgewinkeltes Ende mit dem Lampenträger 25 verschweißt und stellt einen elektrischen Kontakt zur Sockelhülse 3a her, während die andere Stromzuführung 22 über eine Schmelzsicherung 26 elektrisch leitend mit dem Bodenkontakt 3b des Schraubsockels 3 verbunden ist.A first power supply line 21 is welded to the lamp support 25 via an angled end and makes electrical contact with the base sleeve 3a, while the other power supply line 22 is electrically conductively connected to the bottom contact 3b of the screw base 3 via a fuse 26.

Details des Lampenträgers 25 dieses vierten Ausführungsbeispiels sind in den Figuren 6a und 6b abgebildet. Der Lampenträger 25 besteht aus einem Stanzblechteil aus Hilumin (vernickeltes Stahlblech). Figur 6a zeigt den ausgestanzten Lampenträger 25 noch vor dem abschließenden Formgebungsprozeß. Der Lampenträger 25 besitzt ein rohrförmig oder kreiszylindrisch gebogenes Unterteil 25a, das nach der Montage im Schraubsockel 3 versenkt ist und an der Innenwand der Sockelhülse 3a anliegt. An das Unterteil 25a sind über jeweils einen Verbindungssteg 26 zwei Halteteile 25b angeformt. Beide Halteteile 25b bilden jeweils ein Kreisringsegment, dessen Durchmesser mit dem des rohrartigen Unterteils 25a übereinstimmt. Außerdem weisen beide Halteteile 25b je zwei einwärts gerichtete Befestigungslaschen 27 auf, zwischen denen das Quetschende 20a der Halogenglühlampe klemmend gehaltert wird.Details of the lamp holder 25 of this fourth exemplary embodiment are shown in FIGS. 6a and 6b. The lamp holder 25 consists of a stamped sheet metal part made of Hilumin (nickel-plated steel sheet). FIG. 6a shows the punched-out lamp holder 25 before the final shaping process. The lamp support 25 has a tubular or circular-cylindrical lower part 25a, which is sunk into the screw base 3 after assembly and bears against the inner wall of the base sleeve 3a. Two holding parts 25b are molded onto the lower part 25a via a connecting web 26 in each case. Both holding parts 25b each form a circular ring segment, the diameter of which corresponds to that of the tubular lower part 25a. In addition, each of the two holding parts 25b has two inwardly directed fastening tabs 27, between which the pinch end 20a of the halogen incandescent lamp is clamped.

Das Unterteil 25a des Lampenträgers 25 besitzt drei Zungen 28, die entlang eines Gewindeganges, dessen Steigung auf die des E14-Gewindes der Sockelhülse 3a abgestimmt ist, angeordnet sind. Die freien Enden dieser Zungen 28 zeigen nach oben, wenn die Lampe, wie in Figur 5, mit dem Schraubsockel 3 nach unten, orientiert ist. Die Zungen 28 bilden einen unterbrochenen Gewindegang, der ein Einschrauben des Lampenträgers 25 in die Sockelhülse 3a ermöglicht. Beim Einschrauben verkrallen sich die angeschrägten, scharfkantig ausgeführten freien Enden der Zungen 28 im Gewinde an der Innenwand der Sockelhülse 3a, so daß ein Ausdrehen erschwert wird. Auf Höhe der Stege 26 ist der Lampenträger 25 mit zwei abgewinkelten Laschen 29 versehen, die nach der Montage auf dem Absatz 3c der Sockelhülse 3a aufliegen und als Tiefenanschlag dienen.The lower part 25a of the lamp holder 25 has three tongues 28 which are arranged along a thread whose pitch is matched to that of the E14 thread of the base sleeve 3a. The free ends of these tongues 28 point upward when the lamp, as in FIG. 5, is oriented with the screw base 3 downward. The tongues 28 form an interrupted thread that enables the lamp holder 25 to be screwed into the base sleeve 3a. When screwing in, the tapered, sharp-edged free ends of the tongues 28 claw in the thread on the inner wall of the base sleeve 3a, so that unscrewing is made difficult. At the level of the webs 26, the lamp support 25 is provided with two angled tabs 29 which, after assembly, rest on the shoulder 3c of the base sleeve 3a and serve as a depth stop.

In Figur 7 ist ein fünftes Ausführungsbeispiel einer erfindungsgemäßen elektrischen Lampe schematisch dargestellt. Sie besteht aus einer einseitig gequetschten Hochvolt-Halogenglühlampe mit einem Lampenkolben 41 aus Quarzglas, der axial innerhalb eines lichtdurchlässigen, zylindrischen Außenkolbens 42 angeordnet ist. Der Außenkolben 42 besitzt ein offenes Ende mit einem verengten Halsbereich 42a, der in die Sockelhülse 43a eines B22d-Bajonettsockels 43 eingekittet ist. Innerhalb einseitig gequetschten Lampenkolbens 41 befindet sich ein Leuchtkörper, bestehend aus mehreren untereinander elektrisch leitend verbundenen Glühwendelabschnitten 44. Aus dem Quetschende 41a, das ein schwach doppel-T-förmig ausgeprägtes Profil aufweist, ragen zwei Stromzuführungen (nicht sichtbar in Fig. 7) heraus, die über jeweils eine im Quetschende 41a eingeschmolzene Molybdänfolie 45 elektrisch leitend mit dem Leuchtkörper der Halogenglühlampe verbunden sind. Die beiden Stromzuführungen sind ihrerseits über jeweils eine Schmelzsicherung 46 und einen Zuleitungsdraht 47 zu je einem Bodenkontakt 43b des Sockels 43 geführt.FIG. 7 schematically shows a fifth exemplary embodiment of an electric lamp according to the invention. It consists of a high-voltage halogen incandescent lamp pinched on one side with a lamp bulb 41 made of quartz glass, which is arranged axially within a translucent, cylindrical outer bulb 42. The outer bulb 42 has an open end with a narrowed neck region 42a which is cemented into the socket sleeve 43a of a B22d bayonet socket 43. Inside the lamp bulb 41, which is pinched on one side, there is a luminous element, consisting of a plurality of incandescent filament sections 44 which are electrically conductively connected to one another. Two power leads (not visible in FIG. 7) protrude from the pinch end 41a, which has a weakly double-T-shaped profile. which are electrically conductively connected to the luminous element of the halogen incandescent lamp via a molybdenum foil 45 which is melted into the pinch end 41a. The two power supply lines in turn are each led via a fuse 46 and a lead wire 47 to a ground contact 43b of the base 43.

Die Halterung der Halogenglühlampe übernimmt ein metallischer Lampenträger 48, in dem das Quetschende 41a der Halogenglühlampe fixiert ist. Der Lampenträger 48 besteht aus einem vernickelten Stanzblechteil (Dicke ca. 0,4 mm) und besitzt ein rohrartiges Unterteil 48a, das in einen ringförmigen Abstandshalter 49 hineingreift und mit diesem verschweißt ist. Der ringförmige Abstandshalter 49 weist ein rinnenartiges Profil auf. Sein aufwärts gebogener Außenrand ist mit der Sockelhülse 43a verschweißt. Der verengte Halsbereich 42a des Außenkolbens 42 liegt auf dem Boden des Abstandshalters 49 auf und ist dort mittels Kitt 50 befestigt.A metal lamp holder 48, in which the pinched end 41a of the halogen lamp is fixed, holds the halogen lamp. The lamp holder 48 consists of a nickel-plated stamped sheet metal part (thickness approx. 0.4 mm) and has a tubular lower part 48a which engages in an annular spacer 49 and is welded to it. The annular spacer 49 has a channel-like profile. Its upward curved outer edge is welded to the base sleeve 43a. The narrowed neck area 42a of the outer bulb 42 lies on the bottom of the spacer 49 and is fastened there by means of putty 50.

An das rohrartige Unterteil 48a des Lampenträgers 48 sind zwei Halteteile 51a, 51b mit jeweils zwei einwärts gerichteten Befestigungslaschen 52 angeformt. Das Quetschende 41a der Halogenglühlampe wird nach der Montage zwischen den beiden Halteteilen 51a, 51b gehaltert. Dabei drücken die einwärts gerichteten Befestigungslaschen 52 klemmend gegen die Breitseiten des Quetschendes 41a. Außerdem weisen die Befestigungslaschen 52 Kerben 53 auf, in die ein paßgerecht am Quetschende 41a angeformter Steg 54 hinterrastet, so daß die Halogenglühlampe in axialer Richtung fixiert ist. Ferner greifen die Halteteile 51a, 51b derart in das doppel-T-förmige Profil des Quetschendes 41a ein, daß eine axiale Ausrichtung der Halogenglühlampe im Außenkolben 42 gewährleistet ist.Two holding parts 51a, 51b, each with two fastening tabs 52 directed inwards, are molded onto the tubular lower part 48a of the lamp holder 48. The crimping end 41a of the halogen incandescent lamp is held between the two holding parts 51a, 51b after assembly. The inward fastening tabs 52 press against the broad sides of the pinch end 41a. In addition, the fastening tabs 52 have notches 53, into which a web 54, which is integrally formed on the crimping end 41a, engages so that the halogen incandescent lamp is fixed in the axial direction. Furthermore, the holding parts 51a, 51b engage in the double-T-shaped profile of the pinch end 41a in such a way that an axial alignment of the halogen incandescent lamp in the outer bulb 42 is ensured.

Figur 8a zeigt ein sechstes Ausführungsbeispiel einer erfindungsgemäßen elektrischen Lampe. Dieses Ausführungsbeispiel stimmt in vielen Details mit denen des fünften Ausführungsbeispiels überein. Deshalb tragen bei beiden Ausführungsbeispielen identische Teile in den Figuren 7, 8a und 8b auch dieselben Bezugszeichen. Die Ausführungsbeispiele fünf und sechs unterscheiden sich nur durch den Sockel, den Lampenträger sowie die Form des offenen Endes 42a' des Außenkolbens 42.Figure 8a shows a sixth embodiment of an electric lamp according to the invention. This embodiment corresponds in many details to that of the fifth embodiment. For this reason, identical parts in FIGS. 7, 8a and 8b also have the same reference symbols in both exemplary embodiments. The working examples five and six differ only in the base, the lamp holder and the shape of the open end 42a ′ of the outer bulb 42.

Der Sockel 43' ist hier beim sechsten Ausführungsbeispiel ein E27-Schraubsockel. Eine der aus dem Quetschende 41a herausragenden Stromzuführungen ist über eine Schmelzsicherung 46a und einen Zuleitungsdraht 47a mit der metallischen Sockelhülse 43a' elektrisch leitend verbunden, während die andere Stromzuführung 47b, ebenfalls über eine Schmelzsicherung 46b, zum Bodenkontakt 43b' des Sockels 43' geführt ist.In the sixth exemplary embodiment, the base 43 'is an E27 screw base. One of the current leads protruding from the squeezing end 41a is electrically conductively connected to the metallic base sleeve 43a 'via a fuse 46a and a lead wire 47a, while the other current lead 47b, also via a fuse 46b, is led to the ground contact 43b' of the base 43 '.

Die Hochvolt-Halogenglühlampe ist identisch zu der des vorherigen Ausführungsbeispiels und wird vom Lampenträger 48' gehaltert. Der Lampenträger 48' besteht aus einem Stanzblechteil (Dicke: 0,4 mm) und besitzt ein rohrartiges Unterteil 48a', an das zwei Halteteile 51a, 51b angeformt sind, zwischen denen das Quetschende 41a der Halogenglühlampe fixiert ist. Diese Halteteile 51a, 51b stimmen mit denen des fünften Ausführungsbeispiels in allen Details überein. Das Unterteil 48a' des Lampenträgers 48' greift in den ringförmigen Abstandshalter 49' ein und ist mit diesem verschweißt, wie bereits beim vorhergehenden Ausführungsbeispiel beschrieben. Der Abstandshalter 49' besitzt auch hier ein rinnenartiges Profil und ist ebenfalls mit der Innenwand der Sockelhülse 43a' verschweißt. Außerdem weist der Abstandshalter 49', im Unterschied zum vorhergehenden Ausführungsbeispiel, eine horizontal verlaufende Auflagefläche 57 für den Außenkolben 42 auf.The high-voltage halogen incandescent lamp is identical to that of the previous exemplary embodiment and is held by the lamp holder 48 '. The lamp holder 48 'consists of a stamped sheet metal part (thickness: 0.4 mm) and has a tubular lower part 48a', to which two holding parts 51a, 51b are formed, between which the pinch end 41a of the halogen incandescent lamp is fixed. These holding parts 51a, 51b correspond to those of the fifth exemplary embodiment in all details. The lower part 48a 'of the lamp holder 48' engages in the annular spacer 49 'and is welded to it, as already described in the previous exemplary embodiment. The spacer 49 'also has a channel-like profile here and is also welded to the inner wall of the base sleeve 43a'. In addition, in contrast to the previous exemplary embodiment, the spacer 49 ′ has a horizontally running contact surface 57 for the outer bulb 42.

Der Außenkolben 42 wird hier beim sechsten Ausführungsbeispiel ohne Verwendung von Kitt am Sockel 43' besfestigt. Zur Fixierung des Außenkolben 42 am Sockel 43' dienen hier sechs Rastfedern 55, die am Unterteil 48a' des Lampenträgers 48' gleichmäßig entlang seins Umfanges angeordnet sind. Diese Rastfedern 55 ragen aus der Mantelfläche des Unterteils 48a' hervor. Da der Durchmesser der Außenkolbenöffnung 42a' nur geringfügig größer als der Durchmesser des Unterteils 48a' ist, gleitet der Außenkolben 42 beim Aufsockeln über den Lampenträger 48', drückt die Rastfedern 55 dabei kurzzeitig zurück und rastet zwischen den Rastfedern 55 und der Auflagefläche 57 des Abstandshalters 49' ein. Auf diese Weise ermöglichen die sechs Rastfedern 55, von denen in der Figur 8b nur drei dargestellt sind, und die Auflagefläche 57 eine kittlose Verbindung zwischen Außenkolben 42 und Sockel 43'. Zusätzlich besitzt das Unterteil 48a' des Lampenträgers 48' zwei aus seiner Mantelfläche hervorstehende Nasen 56 und der Außenkolben im Bereich seiner Öffnung 42a' zwei paßgerecht auf die Nasen 56 abgestimmte Einkerbungen, die zusammen eine Verdrehsicherung für den Außenkolben 42 bilden, so daß Drehungen des Außenkolbens 42 um seine Achse verhindert werden.The outer bulb 42 is fastened here in the sixth exemplary embodiment without using cement on the base 43 '. To fix the outer bulb 42 to the base 43 ', six catch springs 55 are used, which are arranged on the lower part 48a' of the lamp holder 48 'evenly along its circumference. These detent springs 55 protrude from the lateral surface of the lower part 48a '. Since the diameter of the outer bulb opening 42a 'is only slightly larger than the diameter of the lower part 48a', the outer bulb 42 slides over the lamp holder 48 'when it is sockets, briefly presses the detent springs 55 back and snaps between the detent springs 55 and the bearing surface 57 of the spacer 49 'a. In this way, the six detent springs 55, of which only three are shown in FIG. 8b, and the contact surface 57 enable a cementless connection between the outer bulb 42 and the base 43 '. In addition, the lower part 48a 'of the lamp holder 48' has two lugs 56 protruding from its outer surface and the outer bulb in the region of its opening 42a 'has two Notches matched to the lugs 56, which together form an anti-rotation device for the outer piston 42, so that rotations of the outer piston 42 about its axis are prevented.

Die Erfindung beschränkt sich nicht auf die oben näher beschriebenen Ausführungsbeispiele. Es sind auch andere Lampenträger-Sockel Kombinationen, als die in den Figuren dargestellten möglich. So kann beispielsweise der Lampenträger des dritten Ausführungsbeispiels auch zusammen mit einem Bajonettsockel verwendet werden. Außerdem ist es beispielsweise möglich, die abgewinkelten, als Tiefenanschlag dienenden Laschen 11 nicht an das Unterteil 5a des Lampenträgers, sondern an die die Halogenglühlampe tragenden Halteteile 5b, 5c des Lampenträgers anzuformen.The invention is not limited to the exemplary embodiments described in more detail above. There are also other lamp carrier-base combinations possible than those shown in the figures. For example, the lamp holder of the third exemplary embodiment can also be used together with a bayonet base. In addition, it is possible, for example, to form the angled tabs 11 serving as depth stops not on the lower part 5a of the lamp holder, but on the holding parts 5b, 5c of the lamp holder supporting the halogen incandescent lamp.

Claims (28)

  1. Single-cap electric lamp having the following features:
    - a transparent outer bulb (2, 42) which carries a cap (3, 43, 43') which is standard for general-purpose incandescent lamps and has a cap shell (3a, 43a, 43a'),
    - a high-voltage halogen incandescent lamp arranged inside the outer bulb (2, 42),
    - a metallic lamp support (5, 5', 5", 25, 48, 48') for holding the high-voltage halogen incandescent lamp in the outer bulb,
    - supply leads (6a, 6b, 21, 22) which project from the lamp bulb (1, 20, 41) of the high-voltage halogen incandescent lamp and are connected in an electrically conductive fashion to parts of the cap (3, 43, 43'),
    characterized in that the lamp support (5, 5', 5", 25, 48, 48') comprises a sheet-metal part and surrounds the lamp bulb (1, 41) of the high-voltage halogen incandescent lamp in a clamping fashion and is fixed on the inner wall of the cap shell (3a, 43a, 43a').
  2. Single-cap electric lamp according to Claim 1, characterized in that the lamp bulb (1, 20, 41) has a pinch (la, 20a, 41a) which is fixed in the lamp support (5, 5', 5", 25, 48, 48') in a clamping fashion.
  3. Single-cap electric lamp according to Claim 1, characterized in that the lamp support (5, 5', 5", 25) has a tubular lower part (5a, 5a', 5a", 25a) which engages in the interior of the cap shell (3a) and bears in a clamping fashion against the inner wall of the cap shell (3a).
  4. Single-cap electric lamp according to Claim 1, characterized in that the lamp support (48, 48') is fastened to the inner wall of the cap shell (43a, 43a') by means of a spacer (49, 49').
  5. Single-cap electric lamp according to Claim 4, characterized in that the spacer (49, 49') is designed like a ring, has a trough-like profile, bears against the inner wall of the cap shell (43a, 43a') and is welded or soldered to the latter.
  6. Single-cap electric lamp according to Claims 4 and 5, characterized in that the lamp support (48, 48') has a tubular lower part (48a, 48a') which is inserted into the ring-like spacer (49, 49') and is welded to the latter.
  7. Single-cap electric lamp according to one or more of Claims 1 to 6, characterized in that the lamp support (5; 5') has an upper part which comprises two retaining pincers (5b, 5c; 5b', 5c') in which the pinch (1a) of the lamp bulb (1) is fixed in a clamping fashion.
  8. Single-cap electric lamp according to one of Claims 3 or 6, characterized in that the lower part (5a", 25a, 48a, 48a') has integrally formed retaining parts (13, 25a, 25b, 51a, 51b) with inwardly directed fastening lugs (14, 27, 52) between which a pinch end (1a, 20a, 41a) of the lamp bulb (1, 20, 41) is held in a clamping fashion.
  9. Single-cap electric lamp according to Claims 1, 2 and 7, characterized in that the pinch (1a) has one or more webs (10) and the retaining pincers (5b, 5c; 5b', 5c') has notches (9; 9') adapted thereto in which the webs (10) are arranged.
  10. Single-cap electric lamp according to Claims 1, 2 and 8, characterized in that the pinch (1a, 41a) has one or more webs (10, 54) and the fastening lugs (14, 52) of the lamp support (5", 48, 48') have notches (9", 53) adapted thereto in which the webs (10, 54) are arranged.
  11. Single-cap electric lamp according to Claims 1 and 3, characterized in that the cap (3, 43') is a screw cap.
  12. Single-cap electric lamp according to Claims 1 and 3, characterized in that the lower part (5a, 5a', 5a", 25a) of the lamp support (5, 5', 5", 25) is turned into the cap shell (3a).
  13. Single-cap electric lamp according to Claims 11 and 12, characterized in that the lower part (5a; 5a', 25a) of the lamp support (5; 5', 25a) is provided with a screw-in device (5d; 5d', 28) which comprises only one thread, the lead of which is adapted to the thread lead of the cap shell (3a).
  14. Single-cap electric lamp according to Claim 13, characterized in that the screw-in device comprises a plurality of knobs (5d) which form on the outer wall of the tubular lower part (5a) an interrupted thread and engage in the thread on the inner wall of the cap shell (3a).
  15. Single-cap electric lamp according to Claim 14, characterized in that the knobs (5d) are rounded off in the screwing-in direction and are constructed with sharp-edged boundaries in the opposite direction.
  16. Single-cap electric lamp according to Claim 13, characterized in that the screw-in device comprises a plurality of tongues (5d', 28) which are arranged on the tubular lower part (5a', 25a) along a thread, spread outwards and are hooked in the thread of the cap shell (3a).
  17. Single-cap electric lamp according to Claim 1, characterized in that the lamp support (5, 5'; 5", 25) has at least one angular lug (11, 11'; 11", 29) which is seated on a step in the interior of the cap shell (3a) and serves as a depth stop.
  18. Single-cap electric lamp according to Claim 17, characterized in that the angular lugs (11") are welded to the cap shell (3a).
  19. Single-cap electric lamp according to Claim 1, characterized in that the lamp support (48, 48') has a mechanical locking device (55) for the outer bulb (42).
  20. Single-cap electric lamp according to Claim 19, characterized in that the locking device (55) has at least one latching spring (55), integrally formed on the lamp support (48, 48'), behind which the outer bulb wall latches.
  21. Single-cap electric lamp according to Claims 19 and 20, characterized in that the lamp support has a depth stop for the outer bulb.
  22. Single-cap electric lamp according to Claims 19 and 20, characterized in that the outer bulb (2) is seated on the cap shell (3a), and the latter (3a) serves as a depth stop for the outer bulb (2).
  23. Single-cap electric lamp according to Claims 4, 19 and 20, characterized in that the outer bulb (42) rests on the spacer (49, 49') and the latter serves as a depth stop for the outer bulb (42).
  24. Single-cap electric lamp according to Claim 19, characterized in that the outer bulb (42) and the lamp support (48, 48') have an anti-rotation device (53, 56) adapted to them which prevents axial rotation of the outer bulb (42).
  25. Single-cap electric lamp according to Claim 24, characterized in that the anti-rotation device (56) comprises at least one notch in the outer bulb wall and at least one nose (56) which projects from the lamp support (48, 48') and engages in the notch.
  26. Single-cap electric lamp according to Claim 1, characterized in that the cap (43) is a bayonet cap.
  27. Single-cap electric lamp according to Claim 1, characterized in that the lamp bulb (1) is constructed as a tubular filament lamp having a pinch end (1a) near the cap and a pinch end (1b) remote from the cap, from which pinch ends the supply leads (6a, 6b) project, the supply lead (6b) projecting from the pinch end (1b) remote from the cap being connected in an electrically conductive fashion to the lamp support (5; 5'; 5") via a feedback path (8), and the supply lead (6a) projecting from the pinch end (la) near the cap being guided to the contact plate (3b) of the cap (3).
  28. Single-cap electric lamp according to Claim 1, characterized in that the halogen lamp has a lamp bulb (20, 41) pinched at one end.
EP94101619A 1993-02-23 1994-02-02 Single-cap lamp Expired - Lifetime EP0613172B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4305503 1993-02-23
DE4305503A DE4305503A1 (en) 1993-02-23 1993-02-23 Electric lamp with base on one side

Publications (2)

Publication Number Publication Date
EP0613172A1 EP0613172A1 (en) 1994-08-31
EP0613172B1 true EP0613172B1 (en) 1996-07-17

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US (1) US5453655A (en)
EP (1) EP0613172B1 (en)
JP (1) JP3283685B2 (en)
KR (1) KR100282092B1 (en)
DE (2) DE4305503A1 (en)

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DE9101460U1 (en) * 1991-02-08 1991-05-02 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen, De
MX9202270A (en) * 1991-05-31 1992-11-01 Philips Nv ELECTRIC REFLECTOR LAMP.

Also Published As

Publication number Publication date
KR100282092B1 (en) 2001-03-02
EP0613172A1 (en) 1994-08-31
DE4305503A1 (en) 1994-08-25
JP3283685B2 (en) 2002-05-20
US5453655A (en) 1995-09-26
JPH06260151A (en) 1994-09-16
KR940020462A (en) 1994-09-16
DE59400420D1 (en) 1996-08-22

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