EP1051720A1 - Electrical lamp for a headlight of a vehicle - Google Patents

Electrical lamp for a headlight of a vehicle

Info

Publication number
EP1051720A1
EP1051720A1 EP99962083A EP99962083A EP1051720A1 EP 1051720 A1 EP1051720 A1 EP 1051720A1 EP 99962083 A EP99962083 A EP 99962083A EP 99962083 A EP99962083 A EP 99962083A EP 1051720 A1 EP1051720 A1 EP 1051720A1
Authority
EP
European Patent Office
Prior art keywords
lamp
light
bulb
plastic
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.)
Granted
Application number
EP99962083A
Other languages
German (de)
French (fr)
Other versions
EP1051720B1 (en
Inventor
Peter Helbig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1051720A1 publication Critical patent/EP1051720A1/en
Application granted granted Critical
Publication of EP1051720B1 publication Critical patent/EP1051720B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • the invention relates to an electric lamp for a vehicle headlight according to the preamble of patent claim 1.
  • Such an electric lamp is disclosed, for example, in international patent application WO 97/25733.
  • This laid-open specification describes an electric light bulb, in particular a motor vehicle headlight lamp, with an incandescent filament enclosed in a glass lamp bulb and a lamp base consisting of metal and plastic parts.
  • the gas-tight pinch base of the lamp bulb is fixed in a metallic holder part, which in turn is connected directly or via an intermediate ring to a metallic, ring-shaped carrier sleeve.
  • the metallic support sleeve is anchored in the plastic base part of the lamp base equipped with the electrical connections of the lamp.
  • the ring-shaped carrier sleeve has three reference lugs which are arranged in one plane and are distributed equidistantly around the circumference of the carrier sleeve and which engage in the lamp mounting opening of the reflector, and a pressure spring acting radially outwards , which rests resiliently on the edge of the lamp mounting opening of the reflector.
  • the mounting opening of the reflector is sealed by means of a silicone or rubber ring which is arranged between the outer wall of the reflector and the annular flange of the plastic base part.
  • a disadvantage of this lamp is that the plastic surface of the flange is accessible through the mounting opening of the reflector for the electromagnetic radiation emitted by the filament. This plastic surface is affected by the infrared radiation emitted by the incandescent filament and additionally by the absorption of the generated light heats and tends to evaporate. In addition, the aforementioned light absorption reduces the efficiency of the headlamp.
  • the vehicle headlight lamp according to the invention has a lamp base, a translucent lamp bulb and at least one illuminant enclosed by the lamp bulb, the lamp base having a plastic base part provided with the electrical connections of the lamp and at least one metallic holder part for the lamp bulb anchored in the plastic base part.
  • the surfaces of the plastic base part facing the lamp bulb are provided with a light-reflecting coating.
  • the light-reflecting coating reduces the light absorption of the plastic base part and thereby reduces its thermal load and thus improves the evaporation behavior of the plastic base part.
  • the light-reflecting coating increases the efficiency of the headlamp, since the light striking the plastic surfaces can now be used by the light-reflecting coating for the headlamp reflector.
  • the light-reflecting coating is advantageously embodied as an aluminum layer, because it has the same high level of light reflection as the headlight reflector and sufficient adhesion to the plastic base part.
  • the aluminum layer is advantageously designed as an aluminum-containing color layer.
  • the aluminum layer can advantageously also consist of an aluminum sheet which covers the lamp bulb. nimble plastic! covers the lamp base and the side facing the lamp bulb is polished.
  • Figure 1 is a schematic, partially sectioned representation of the preferred embodiment of the lamp according to the invention
  • Figure 2 is a plan view of the plastic base part and the support sleeve of the lamp shown in Figure 1
  • the preferred exemplary embodiment of the invention is a single-filament halogen incandescent lamp which is intended for use in a motor vehicle headlight.
  • This lamp has a glass, essentially cylindrical lamp bulb 10 with a gas-tightly closed squeezing foot 10a.
  • the dome 10b of the lamp bulb 10 is provided with a light-absorbing coating.
  • the squeezing foot 10a of the lamp bulb 10 is fixed in a metallic holder, which consists of the cup-like holder part 14a, the intermediate ring 14e and the annular carrier sleeve 14b.
  • the lamp base also has a plastic base part 15 provided with the electrical connections 16, 17 of the lamp, in which the ring-shaped metallic carrier sleeve 14b is anchored.
  • the carrier sleeve 14b has three reference lugs 14c lying in one plane and a pressure spring 14d for mounting the lamp in the reflector 20 of a motor vehicle headlight.
  • the reflector 20 is sealed by means of a silicone sealing ring 19 which bears on the outer wall 20b of the reflector 20 and on the annular flange 15a of the plastic base part 15.
  • a silicone sealing ring 19 which bears on the outer wall 20b of the reflector 20 and on the annular flange 15a of the plastic base part 15.
  • FIG. 1 the structure of the lamp according to the preferred embodiment and its use represented schematically in a headlight.
  • the upper side of the annular flange 15a facing the lamp bulb 10 is printed with a light-reflecting, aluminum-containing color layer 21 (FIG. 2), which has essentially the same light reflectance and the same color tone as the reflector 20.
  • an aluminum layer can also be vapor-deposited on the top of the annular flange 15a.
  • a further alternative to the colored layer consists in covering the upper side of the annular flange 15a with an aluminum sheet, the surface of which facing the lamp bulb is polished.
  • another metallic coating of the top of the annular flange 15a can also be carried out, provided that this has a similarly high degree of reflection as the reflection surface of the headlight reflector.
  • the reflective coating 21 can also consist of a steel sheet which covers the upper side of the annular flange 15a facing the lamp bulb.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention relates to lamp for a headlight of a vehicle comprising a metal-plastic socket. The lamp socket comprises a metallic holder (14a-14e) for the lamp bulb (10) and a plastic socket part (15) which is provided with the electrical contacts (16, 17) of the lamp. The metallic holder (14a-14e) is anchored in said plastic socket part (15). A sealing ring (19) formed of silicone or rubber is used for sealing the reflector opening which is configured as the lamp socket. The sealing ring (19) is arranged between the outer wall of the reflector (20) and the ring-shaped flange (15a) of the plastic socket part (15). According to the invention, the upper surface of the ring-shaped flange facing the lamp bulb (10) is provided with a light-reflecting coating.

Description

Elektrische Lampe für einen FahrzeugscheinwerferElectric lamp for a vehicle headlight
Die Erfindung betrifft eine elektrische Lampe für einen Fahrzeugscheinwerfer gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to an electric lamp for a vehicle headlight according to the preamble of patent claim 1.
I. Stand der TechnikI. State of the art
Eine derartige elektrische Lampe ist beispielsweise in der internationalen Patentanmeldung WO 97/25733 offenbart. Diese Offenlegungsschrift beschreibt eine elektri- sehe Glühlampe, insbesondere eine Kraftfahrzeugscheinwerferlampe, mit einer in einem gläsernen Lampenkolben eingeschlossenen Glühwendel und einem aus Metall- und Kunststoffteilen bestehenden Lampensockel. Der gasdicht verschlossene Quetschfuß des Lampenkolbens ist in einem metallischen Halterteil fixiert, das seinerseits direkt oder über einen Zwischenring mit einer metallischen, ringförmigen Trägerhülse verbunden ist. Die metallische Trägerhülse ist in dem mit den elektrischen Anschlüssen der Lampe ausgestatteten Kunststoffsockelteil des Lampensok- kels verankert. Zur Montage der Lampe in der als Lampenfassung ausgebildeten Öffnung eines Reflektors besitzt die ringförmige Trägerhülse drei in einer Ebene angeordnete, äquidistant über der Umfang der Trägerhülse verteilte Referenznasen, die in die Lampen-Montage-Öffnung des Reflektors eingreifen, und eine radial nach außen wirkende Andruckfeder, die federnd am Rand der Lampen-Montage-Öffnung des Reflektors anliegt. Die Abdichtung der Montage-Öffnung des Reflektors erfolgt mittels eines Silikon- oder Gummiringes, der zwischen der Reflektoraußenwand und dem ringförmigen Flansch des Kunststoffsockelteils angeordnet ist. Ein Nachteil dieser Lampe besteht darin, daß die Kunststoffläche des Flansches durch die Montage-Öffnung des Reflektors für die von der Glühwendel emittierte elektromagnetische Strahlung zugänglich ist. Diese Kunststoffläche wird durch die von der Glühwendel emittierte Infrarotstrahlung und zusätzlich durch die Absorption des von der Glüh- wendel erzeugten Lichts erhitzt und neigt zum Ausdampfen. Außerdem vermindert die vorgenannte Lichtabsorption den Wirkungsgrad des Scheinwerfers.Such an electric lamp is disclosed, for example, in international patent application WO 97/25733. This laid-open specification describes an electric light bulb, in particular a motor vehicle headlight lamp, with an incandescent filament enclosed in a glass lamp bulb and a lamp base consisting of metal and plastic parts. The gas-tight pinch base of the lamp bulb is fixed in a metallic holder part, which in turn is connected directly or via an intermediate ring to a metallic, ring-shaped carrier sleeve. The metallic support sleeve is anchored in the plastic base part of the lamp base equipped with the electrical connections of the lamp. To mount the lamp in the opening of a reflector designed as a lamp holder, the ring-shaped carrier sleeve has three reference lugs which are arranged in one plane and are distributed equidistantly around the circumference of the carrier sleeve and which engage in the lamp mounting opening of the reflector, and a pressure spring acting radially outwards , which rests resiliently on the edge of the lamp mounting opening of the reflector. The mounting opening of the reflector is sealed by means of a silicone or rubber ring which is arranged between the outer wall of the reflector and the annular flange of the plastic base part. A disadvantage of this lamp is that the plastic surface of the flange is accessible through the mounting opening of the reflector for the electromagnetic radiation emitted by the filament. This plastic surface is affected by the infrared radiation emitted by the incandescent filament and additionally by the absorption of the generated light heats and tends to evaporate. In addition, the aforementioned light absorption reduces the efficiency of the headlamp.
II. Darstellung der ErfindungII. Presentation of the invention
Es ist die Aufgabe der Erfindung, eine Fahrzeugscheinwerferlampe bereitzustellen, die beim Einsatz in einem Scheinwerfer ein verringertes Ausdampfverhalten und einen verbesserten Wirkungsgrad gewährleistet.It is the object of the invention to provide a vehicle headlight lamp which, when used in a headlight, ensures reduced evaporation behavior and improved efficiency.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Besonders vorteilhafte Ausführungen der Erfindung sind in den Unteransprüchen beschrieben.This object is achieved by the characterizing features of claim 1. Particularly advantageous embodiments of the invention are described in the subclaims.
Die erfindungsgemäße Fahrzeugscheinwerferlampe besitzt einen Lampensockel, einen lichtdurchlässigen Lampenkolben und mindestens ein von dem Lampenkolben umschlossenes Leuchtmittel, wobei der Lampensockel ein mit den elektrischen Anschlüssen der Lampe versehenes Kunststoffsockelteil und mindestens ein in dem Kunststoffsockelteil verankertes metallisches Halterteil für den Lampenkolben aufweist. Erfindungsgemäß sind die dem Lampenkolben zugewandten Flächen des Kunststoffsockelteils mit einer lichtreflektierenden Beschichtung versehen. Die lichtreflektierende Beschichtung reduziert die Lichtabsorption des Kunststoffsockelteils und vermindert dadurch dessen thermische Belastung und verbessert somit das Ausdampfverhalten des Kunststoffsockelteils. Zusätzlich erhöht die lichtreflektierende Beschichtung die Effizienz des Scheinwerfers, da das auf die Kunststofflächen auftreffende Licht nun durch deren lichtreflektierende Beschichtung für den Scheinwerferreflektor nutzbar gemacht wird.The vehicle headlight lamp according to the invention has a lamp base, a translucent lamp bulb and at least one illuminant enclosed by the lamp bulb, the lamp base having a plastic base part provided with the electrical connections of the lamp and at least one metallic holder part for the lamp bulb anchored in the plastic base part. According to the invention, the surfaces of the plastic base part facing the lamp bulb are provided with a light-reflecting coating. The light-reflecting coating reduces the light absorption of the plastic base part and thereby reduces its thermal load and thus improves the evaporation behavior of the plastic base part. In addition, the light-reflecting coating increases the efficiency of the headlamp, since the light striking the plastic surfaces can now be used by the light-reflecting coating for the headlamp reflector.
Vorteilhafterweise ist die lichtreflektierende Beschichtung als Aluminiumschicht ausgeführt, weil diese einen gleich hohen Lichtreflexiongrad wie der Scheinwerferreflektor und eine ausreichende Haftung auf dem Kunststoffockelteil besitzt. Die Alu- miniumschicht ist aus fertigungstechnischen Gründen vorteilhafterweise als alumini- umhaltige Farbschicht ausgeführt. Alternativ kann die Aluminiumschicht vorteilhafterweise auch aus einem Aluminiumblech bestehen, die die dem Lampenkolben zu- gewandten Kunststoff! ächen des Lampensockels abdeckt und dessen dem Lampenkolben zugewandte Seite poliert ist.The light-reflecting coating is advantageously embodied as an aluminum layer, because it has the same high level of light reflection as the headlight reflector and sufficient adhesion to the plastic base part. For manufacturing reasons, the aluminum layer is advantageously designed as an aluminum-containing color layer. As an alternative, the aluminum layer can advantageously also consist of an aluminum sheet which covers the lamp bulb. nimble plastic! covers the lamp base and the side facing the lamp bulb is polished.
III. Darstellung der ErfindungIII. Presentation of the invention
Nachstehend wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:The invention is explained in more detail below on the basis of a preferred exemplary embodiment. Show it:
Figur 1 eine schematische, teilweise geschnittene Darstellung des bevorzugten Ausführungsbeispiels der erfindungsgemäßen LampeFigure 1 is a schematic, partially sectioned representation of the preferred embodiment of the lamp according to the invention
Figur 2 eine Draufsicht auf das Kunststoffsockelteil und die Trägerhülse der in Figur 1 abgebildeten LampeFigure 2 is a plan view of the plastic base part and the support sleeve of the lamp shown in Figure 1
Bei dem bevorzugten Ausführungsbeispiel der Erfindung handelt es sich um eine Einfaden-Halogenglühlampe, die für den Einsatz in einem Kraftfahrzeugscheinwerfer vorgesehen ist. Diese Lampe besitzt einen gläsernen, im wesentlichen zylindrischen Lampenkolben 10 mit einem gasdicht verschlossenen Quetschfuß 10a. Der Dom 10b des Lampenkolbens 10 ist mit einer lichtabsorbierenden Beschichtung versehen. Als Lichtquelle dient eine parallel zur Lampenkolbenachse ausgerichtete Glühwendel 11, die elektrisch leitend mit zwei aus dem Quetschfuß 10a herausgeführten, aus Molybdändraht bestehenden Stromzuführungen 12, 13 verbunden ist. Der Quetschfuß 10a des Lampenkolbens 10 ist in einer metallischen Halterung, die aus dem napfartigen Halterteil 14a, dem Zwischenring 14e und der ringförmigen Trägerhülse 14b besteht, fixiert. Neben der metallischen Halterung 14a, 14b weist der Lampensockel auch ein mit den elektrischen Anschlüssen 16, 17 der Lampe versehenes Kunststoffsockelteil 15 auf, in dem die ringförmige metallische Trägerhülse 14b verankert ist. Die Trägerhülse 14b besitzt drei in einer Ebene liegende Referenznasen 14c und eine Andruckfeder 14d zur Montage der Lampe in dem Reflektor 20 eines Kraftfahrzeugscheinwerfers. Die Abdichtung des Reflektors 20 erfolgt mittels eines Silikondichtungsringes 19, der an der Außenwand 20b des Reflektors 20 und an dem ringförmigen Flansch 15a des Kunststoffsockelteils 15 anliegt. In Figur 1 ist der Aufbau der Lampe gemäß des bevorzugten Ausführungsbeispiels und ihr Einsatz in einem Scheinwerfer schematisch dargestellt. Die dem Lampenkolben 10 zugewandte Oberseite des ringförmigen Flansches 15a ist mit einer lichtreflektierenden, aluminiumhaltigen Farbschicht 21 bedruckt (Figur 2), die im wesentlichen den gleichen Lichtreflexiongrad und den gleichen Farbton wie der Reflektor 20 besitzt.The preferred exemplary embodiment of the invention is a single-filament halogen incandescent lamp which is intended for use in a motor vehicle headlight. This lamp has a glass, essentially cylindrical lamp bulb 10 with a gas-tightly closed squeezing foot 10a. The dome 10b of the lamp bulb 10 is provided with a light-absorbing coating. An incandescent filament 11, which is aligned parallel to the lamp bulb axis and serves as a light source, is connected in an electrically conductive manner to two current leads 12, 13 made of molybdenum wire and led out of the pinch base 10a. The squeezing foot 10a of the lamp bulb 10 is fixed in a metallic holder, which consists of the cup-like holder part 14a, the intermediate ring 14e and the annular carrier sleeve 14b. In addition to the metallic holder 14a, 14b, the lamp base also has a plastic base part 15 provided with the electrical connections 16, 17 of the lamp, in which the ring-shaped metallic carrier sleeve 14b is anchored. The carrier sleeve 14b has three reference lugs 14c lying in one plane and a pressure spring 14d for mounting the lamp in the reflector 20 of a motor vehicle headlight. The reflector 20 is sealed by means of a silicone sealing ring 19 which bears on the outer wall 20b of the reflector 20 and on the annular flange 15a of the plastic base part 15. In Figure 1, the structure of the lamp according to the preferred embodiment and its use represented schematically in a headlight. The upper side of the annular flange 15a facing the lamp bulb 10 is printed with a light-reflecting, aluminum-containing color layer 21 (FIG. 2), which has essentially the same light reflectance and the same color tone as the reflector 20.
Die Erfindung beschränkt sich nicht auf das oben näher erläuterte Ausführungsbeispiel. Beispielsweise kann statt dem Aufbringen einer Farbschicht auch eine Bedampfung der Oberseite des ringförmigen Flansches 15a mit einer Aluminiumschicht durchgeführt werden. Eine weitere Alternative zur Farbschicht besteht in der Abdek- kung der Oberseite des ringförmigen Flansches 15a mit einem Aluminiumblech, des- sen dem Lampenkolben zugewandte Oberfläche poliert ist. Anstelle einer Aluminiumschicht kann auch eine andere metallische Beschichtung der Oberseite des ringförmigen Flansches 15a durchgeführt werden, sofern diese einen ähnlich hohen Reflexionsgrad wie die Reflexionsfläche des Scheinwerferreflektors aufweist. Beispielsweise kann die reflektierende Beschichtung 21 auch aus einem Stahlblech be- stehen, das die dem Lampenkolben zugewandte Oberseite des ringförmigen Flansches 15a abdeckt. The invention is not limited to the exemplary embodiment explained in more detail above. For example, instead of applying a layer of paint, an aluminum layer can also be vapor-deposited on the top of the annular flange 15a. A further alternative to the colored layer consists in covering the upper side of the annular flange 15a with an aluminum sheet, the surface of which facing the lamp bulb is polished. Instead of an aluminum layer, another metallic coating of the top of the annular flange 15a can also be carried out, provided that this has a similarly high degree of reflection as the reflection surface of the headlight reflector. For example, the reflective coating 21 can also consist of a steel sheet which covers the upper side of the annular flange 15a facing the lamp bulb.

Claims

Patentansprüche claims
1. Elektrische Lampe für einen Fahrzeugscheinwerfer mit einem Lampensockel, einem lichtdurchlässigen Lampenkolben (10) und mindestens einem vom Lampenkolben (10) umschlossenen Leuchtmittel (11), wobei der Lampensockel ein mit den elektrischen Anschlüssen (16, 17) der Lampe versehenes Kunststoffsockelteil (15) und mindestens ein in dem Kunststoffsockelteil (15) verankertes metallisches Halterteil (14a-14e) für den Lampenkolben (10) besitzt, dadurch gekennzeichnet, daß die dem Lampenkolben (10) zugewandten Flächen (15a) des Kunststoffsok- kelteils (15) mit einer lichtreflektierenden Beschichtung (21) versehen sind.1. Electric lamp for a vehicle headlight with a lamp base, a translucent lamp bulb (10) and at least one lamp (11) enclosed by the lamp bulb (10), the lamp base being a plastic base part (15) provided with the electrical connections (16, 17) of the lamp ) and at least one metallic holder part (14a-14e) anchored in the plastic base part (15) for the lamp bulb (10), characterized in that the surfaces (15a) of the plastic base part (15) facing the lamp bulb (10) have a light reflecting coating (21) are provided.
2. Elektrische Lampe nach Anspruch 1, dadurch gekennzeichnet, daß die lichtreflektierende Beschichtung (21) eine Aluminiumschicht ist.2. Electric lamp according to claim 1, characterized in that the light-reflecting coating (21) is an aluminum layer.
3. Elektrische Lampe nach Anspruch 2, dadurch gekennzeichnet, daß die lichtreflektierende Beschichtung (21) eine aluminiumhaltige Farbschicht ist.3. Electric lamp according to claim 2, characterized in that the light-reflecting coating (21) is an aluminum-containing color layer.
4. Elektrische Lampe nach Anspruch 2, dadurch gekennzeichnet, daß die lichtre- flektierende Beschichtung (21) ein Aluminiumblech ist, das die dem Lampenkolben zugewandten Kunststofflächen (15a) abdeckt, und dessen dem Lampenkolben zugewandte Seite poliert ist.4. Electric lamp according to claim 2, characterized in that the light-reflecting coating (21) is an aluminum sheet which covers the plastic surfaces facing the lamp bulb (15a), and whose side facing the lamp bulb is polished.
5. Elektrische Lampe nach Anspruch 1, dadurch gekennzeichnet, daß die lichtreflektierende Beschichtung (21) aus einem Stahlblech besteht, das die dem Lampenkolben zugewandten Kunststofflächen (15a) abdeckt. 5. Electric lamp according to claim 1, characterized in that the light-reflecting coating (21) consists of a steel sheet which covers the plastic surfaces facing the lamp bulb (15a).
EP99962083A 1998-12-01 1999-11-26 Electrical lamp for a headlight of a vehicle Expired - Lifetime EP1051720B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19855403A DE19855403A1 (en) 1998-12-01 1998-12-01 Electric lamp for a vehicle headlight
DE19855403 1998-12-01
PCT/DE1999/003762 WO2000033343A1 (en) 1998-12-01 1999-11-26 Electrical lamp for a headlight of a vehicle

Publications (2)

Publication Number Publication Date
EP1051720A1 true EP1051720A1 (en) 2000-11-15
EP1051720B1 EP1051720B1 (en) 2005-07-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99962083A Expired - Lifetime EP1051720B1 (en) 1998-12-01 1999-11-26 Electrical lamp for a headlight of a vehicle

Country Status (11)

Country Link
EP (1) EP1051720B1 (en)
JP (1) JP4436570B2 (en)
KR (1) KR100669555B1 (en)
CN (1) CN1289446A (en)
AT (1) ATE299615T1 (en)
CA (1) CA2318850A1 (en)
DE (2) DE19855403A1 (en)
ES (1) ES2244234T3 (en)
HU (1) HU225579B1 (en)
TW (1) TW432444B (en)
WO (1) WO2000033343A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4068124B2 (en) 2004-10-04 2008-03-26 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Lamp socket with improved heat conduction
DE102005007048A1 (en) * 2005-02-15 2006-08-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lamp base and electric lamp
US9285093B2 (en) * 2013-03-15 2016-03-15 Federal-Mogul Corporation Self-locating light source module

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8001833A (en) * 1980-03-28 1981-10-16 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
DE8337093U1 (en) * 1983-12-23 1985-05-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München INTERMEDIATE BASE FOR A SINGLE-SIDED BASED DISCHARGE LAMP
DE8337094U1 (en) * 1983-12-23 1985-05-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München BASE FOR A SINGLE-SIDED BASED DISCHARGE LAMP
FR2590725B1 (en) * 1985-06-27 1988-06-17 Elf Aquitaine FLUORESCENT TUBE LAMP
JP3828931B2 (en) * 1994-08-26 2006-10-04 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Reflective lamp
US5506474A (en) * 1995-03-31 1996-04-09 General Electric Company Compact fluorescent lamp using a light reflecting adhesive material
DE19546198A1 (en) * 1995-12-11 1997-06-12 Holzer Walter Prof Dr H C Ing Compact lamp
CN1097283C (en) * 1996-01-11 2002-12-25 电灯专利信托有限公司 Electric lamp with uncemented base
JPH09320527A (en) * 1996-05-31 1997-12-12 Toko Inc Fluorescent tube for portable lamp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0033343A1 *

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Publication number Publication date
ES2244234T3 (en) 2005-12-01
HU225579B1 (en) 2007-03-28
CN1289446A (en) 2001-03-28
CA2318850A1 (en) 2000-06-08
HUP0100213A2 (en) 2001-05-28
TW432444B (en) 2001-05-01
KR100669555B1 (en) 2007-01-15
WO2000033343A1 (en) 2000-06-08
JP2002531917A (en) 2002-09-24
ATE299615T1 (en) 2005-07-15
DE19855403A1 (en) 2000-06-08
KR20010040526A (en) 2001-05-15
HUP0100213A3 (en) 2001-06-28
DE59912266D1 (en) 2005-08-18
EP1051720B1 (en) 2005-07-13
JP4436570B2 (en) 2010-03-24

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