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EP2465134A1 - Halogen bulb for vehicle headlights - Google Patents

Halogen bulb for vehicle headlights

Info

Publication number
EP2465134A1
EP2465134A1 EP10743086A EP10743086A EP2465134A1 EP 2465134 A1 EP2465134 A1 EP 2465134A1 EP 10743086 A EP10743086 A EP 10743086A EP 10743086 A EP10743086 A EP 10743086A EP 2465134 A1 EP2465134 A1 EP 2465134A1
Authority
EP
European Patent Office
Prior art keywords
filament
halogen incandescent
incandescent lamp
lamp
halogen
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
EP10743086A
Other languages
German (de)
French (fr)
Other versions
EP2465134B1 (en
Inventor
Jenny Trommer
Christoph Hoffmann
Gabriele Wahl
Katja Zeller
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
Osram GmbH
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 Osram GmbH filed Critical Osram GmbH
Publication of EP2465134A1 publication Critical patent/EP2465134A1/en
Application granted granted Critical
Publication of EP2465134B1 publication Critical patent/EP2465134B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape

Definitions

  • the invention relates to a halogen incandescent lamp according to the preamble of patent claim 1.
  • Such a halogen incandescent lamp is disclosed, for example, in WO 96/05610 A1.
  • This document describes a two-filament halogen incandescent lamp for vehicle headlights, in particular a H4 lamp, with two incandescent filaments for generating the low beam or high beam.
  • the low beam filament and the high beam filament of a dual-filament H4, H13 or HB2 halogen bulb which are designed to operate on a nominal 12 V electrical system voltage, shall be tested at a test voltage of 13.2 volts (for H4 and H13 lamps) or 12.8 volts (for HB2 lamps) generate a luminous flux according to the values in Table 1 below.
  • H4 lamp 1000 In ⁇ 15% 1650 In ⁇ 15%
  • the electric power consumption of the low-beam filament of the H4, H13 and HB2 lamps is at 12 volts each 55 watts.
  • the electric power consumption of the high-beam filament of the H4, H13 and HB2 lamps is 60 watts at 12 volts.
  • filament halogen incandescent lamps for vehicle headlamps which can be used in a low beam headlight or in a high beam headlight as a light source.
  • filament halogen incandescent lamps for vehicle headlamps
  • Examples of such single-filament halogen lamps are Hl, H3, H7 and Hll lamps.
  • the filament of a Hl, H3, H7 or Hll lamp intended to be operated on a nominal 12 V electrical system voltage shall, at a test voltage of 13.2 volts, have a luminous flux according to the values in the table below 2 generate.
  • Hll Lamp 1350 10% These H-type, H3-H7 or Hll-type single-filament halogen lamps each have a nominal power consumption of 55 watts.
  • the dipped beam headlamps are usually used to drive in countries where driving is required Prescribe light also during the day, to produce a daytime running light or continuous running light.
  • the conventional halogen incandescent lamps listed above by way of example are not designed for use as continuous running lights or daytime running lights in terms of their electrical power consumption and service life.
  • the halogen incandescent lamp according to the invention for vehicle headlights has at least one filament, which is designed such that it can be used as a light source for generating the low beam or high beam. That is, the filament of the halogen incandescent lamp according to the invention is designed such that it produces a luminous flux during its operation with the test voltage of 13.2 volts or 12.8 volts, which, in the case of a two-filament halogen incandescent lamp, in the range of the luminous flux values of the low-beam filament the conventional H4, HB2 or H13 lamp or, in the case of a single-filament halogen incandescent lamp, in the range of the luminous flux values Filament of conventional Hl, H3, H7 or HIl lamp is located.
  • the filament of the halogen incandescent lamp according to the invention is designed such that it has a lower electrical power consumption during its operation than filaments of conventional halogen incandescent lamps, which can be used for producing low beam or high beam.
  • the filament is designed in such a way that, during its operation with the test voltage of 13.2 volts, a luminous flux in the value range of conventional Hl- , H3, H7 or Hll lamp according to ECE rule 37 as shown in Table 2, but has a lower electrical power consumption.
  • At least the Abbleriumtglühfaden is designed such that during operation with the test voltage of 13.2 volts and 12.8 volts, a luminous flux in the particular case of the versions of the invention two-filament halogen lamps of the type H13, H4 or HB2 Value range of the conventional H13, H4 or HB2 lamp according to ECE Rule 37 or SAE as shown in Table 1, but has a lower electrical power consumption.
  • the halogen incandescent lamps according to the invention cause lower fuel consumption and a correspondingly lower CO 2 emission than conventional halogen incandescent lamps.
  • the halogen incandescent lamps according to the invention are designed such that as far as possible no shortening of the lamp replacement intervals is caused by their aforementioned use and the correspondingly extended operating time.
  • Said filament of the halogen incandescent lamps according to the invention is preferably designed such that its electrical power consumption is at least 5% and preferably even at least 8% lower than the electrical power consumption of the filament of conventional halogen incandescent lamps.
  • the electrical power consumption of the aforementioned filament of the halogen incandescent lamp according to the invention is less than 55 watts and preferably even less than 50 watts when operating on a vehicle electrical system voltage of nominal 12 volts.
  • the helical filament of the inventive versions of the single-filament halogen incandescent lamps and the filament-shaped filament filament of the double-filament halogen incandescent lamp according to the invention preferably has a smaller wire thickness than the incandescent filament of the conventional single-filament halogen lamps or as the low-beam filament of the conventional two-filament halogen incandescent lamps Way to allow a reduced power consumption.
  • the filament is formed as a helix whose helical length is in the range of 4.20 mm to 4.35 mm and whose pitch in the range of 250 microns to 260 microns and whose wire thickness is in the range of 148.9 microns to 153.1 microns.
  • the core factor is preferably in the range of 6.45 to 6.65 and the slope factor in the range of 1.68 to 1.72.
  • the low-beam filament is formed as a helix whose helix length is in the range from 5.40 mm to 5.60 mm and whose pitch in the Range of 265 microns to 285 microns and whose wire thickness is in the range of 159, 6 microns to 164.1 microns.
  • the core factor is preferably in the range of 5.1 to 5.4 and the slope factor in the range of 1.68 to 1.71.
  • the halogen incandescent lamp according to the invention advantageously contains krypton as filling gas in addition to the halogen filling in order to reduce the tungsten evaporation rate of the filament and to extend the service life of the halogen incandescent lamp.
  • the fill gas may also contain xenon to reduce the tungsten vaporization rate of the filament and extend the life of the halogen incandescent lamp. Xenon has a better effect than krypton because of its higher atomic mass, but is more expensive.
  • the halogen incandescent lamp according to the invention has a glass lamp vessel surrounding the at least one filament, which can be provided with a dome formed opaque and light-reflecting in order to increase the useful light component of the lamp.
  • Figure 1 is a side view of a filament Halogenglüh- lamp according to the first embodiment of the invention in a schematic representation
  • Figure 2 is a side view of a two-filament Halogenglüh- lamp according to the second embodiment of the
  • FIG. 1 shows a filament halogen incandescent lamp according to the invention of the type H7 lamp according to the first embodiment is shown schematically. It is designed to operate on a vehicle electrical system voltage of nominal 12 volts.
  • This lamp has a glassy, substantially cylindrical lamp vessel 1, which is provided at one end with a base 2. The other end of the lamp vessel 1, that is, the dome 8 of the lamp vessel 1 is provided with an opaque, light-reflecting, silver-colored or green coating.
  • a filament 3 formed as a single-coiled filament is arranged within the lamp vessel 1, a filament 3 formed as a single-coiled filament is arranged. The filament 3 is aligned axially or parallel to the lamp vessel axis.
  • the coiled with a molybdenum tube Wendelab réelle the filament 3 are each welded to a power supply wire 4, 5 welded.
  • the two power supply wires 4, 5 are each electrically connected to an electrical connection 6, 7 of the base 2.
  • the lamp vessel 1 consists of quartz glass or hard glass, for example aluminosilicate glass.
  • the interior of the lamp vessel 1 is filled with gas containing a halogen filling and a noble gas or noble gas mixture with the constituents xenon or or and krypton.
  • the filling gas pressure is at room temperature (22 ° C) in the range of 1.0 megapascals to 1.5 megapascals.
  • This filament halogen incandescent lamp or its filament 3 generates during operation at the test voltage of 13.2 volts, a luminous flux in the range of 1500 Im ⁇ 10%.
  • the electrical power consumption of this lamp or its filament 3 is 44.9 watts when operating at a voltage of 12 volts.
  • the data of the incandescent filament 3 of an H7 halogen incandescent lamp according to the invention are listed in the left-hand column of Table 3 below. In the right-hand column of Table 3, the corresponding data for the filament of a conventional H7 halogen incandescent lamp are listed for comparison.
  • wire gauge refers to the thickness or diameter of the tungsten wire that makes up the filament.
  • core factor denotes the quotient of the inner diameter of the helix to the wire thickness.
  • slope denotes the sum of wire size and the space or distance between two adjacent turns of the helix.
  • gradient factor denotes the quotient of gradient to wire thickness.
  • helix length refers to the spatial extent of the wound part of the helix measured in the direction of its winding axis.
  • FIG. 2 diagrammatically shows a two-filament halogen incandescent lamp according to the invention of the HB2 lamp or H4 lamp type. It is designed to operate on a vehicle electrical system voltage of nominal 12 volts.
  • This vehicle headlight bulb has a glass lamp vessel 22, which is provided with a lamp cap 21, and which is formed substantially axially symmetrically.
  • the interior of the lamp vessel 22 is filled with gas containing a halogen filling and a noble gas or noble gas mixture with the components xenon or or and krypton.
  • the filling gas pressure at room temperature (22 ° C) is in the range of 0.4 megapascals to 1.0 megapascals.
  • each of the power supply wires 25 to 27 is led out of the sealed end of the lamp vessel 22 and each electrically connected to an electrical terminal 29 of the lamp cap 21.
  • the other end of the lamp vessel 22, that is, the top of the lamp vessel 22, is provided with an opaque, light-reflecting silver-colored or green coating 221.
  • the three power supply wires 25, 26 and 27 are arranged in a common plane and the vehicle headlight During operation, the heat lamp is aligned such that the three power supply wires 25 to 27 are arranged one above the other.
  • the first incandescent filament 23 of the HB2 lamp which is used to produce the low beam, has an electrical power consumption of 46.2 watts and a luminous flux of 910 Im ⁇ 10% (measured at a test voltage of 12.8 volts).
  • the pedestal-like first filament outlet of the low-beam filament 23 is connected to the third Stromzut- wire 27.
  • the second remote Wendelabgang the Abblertztglühchtl 23 remote from the base is connected to a, the Abblertztglüh mindfull 23 partially surrounding metallic Abblendkappe 28.
  • the dimming cap 28 is in turn welded to the first power supply wire 25 so that the dipped beam filament 23 is electrically contacted via the power supply wires 25 and 27 as well as via the dimming cap 28.
  • the second incandescent filament 24 of the HB2 lamp which is used to produce a high beam, has an electrical power consumption of nominal 60 watts and a luminous flux of 1500 Im ⁇ 10% (measured at the test voltage of 12.8 volts) when operating at 12 volts. It corresponds to the high-beam filament of a conventional HB2 lamp. Both filaments 23, 24 are designed as single-wound filaments.
  • the sockelnahe first Wendelabgang the high beam filament 24 is connected to the angled end of the second power supply wire 26.
  • the base remote second filament outlet of the high-beam filament 24 is connected to the third Stromzuers- wire 27.
  • the winding axes of the two annealing your 23, 24 are arranged offset parallel to the lamp vessel axis.
  • the incandescent filaments 23 and 24 are usually made of tungsten, while the power supply wires 25, 26 and 27 and the Abblendkappe 28 are made of molybdenum.
  • the connection of the helical outlets of the incandescent filaments 23 and 24 with the power supply wires 25 to 27 and the Abblendkappe 28 is carried out, for example, in the conventional manner by means of molybdenum tubes which surround the Wendelab réelle with a press fit and which are welded to the power supply wires and the Abblendkappe.
  • Table 4 shows a comparison of the helical data.
  • the filament data for the double-filament halogen incandescent lamp of the HB2 lamp type can also be used for double-filament halogen lamps of the H4 lamp type because the two lamp types are very similar structurally and photometrically.
  • the invention is not limited to the exemplary embodiments described in more detail above, but can also be applied to further single-filament or two-filament halogen incandescent lamps.
  • the invention can also be applied to halogen incandescent lamps, which are intended for operation on another vehicle electrical system voltage, for example at a vehicle electrical system voltage of nominally 24 volts or 6 volts.

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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention relates to a halogen bulb for vehicle headlights, comprising at least one filament (3, 23), which is designed such that it can be used as a light source for generating a low-beam or high-beam and during operation has a lower electric power consumption than the filaments of conventional halogen bulbs used to generate a low-beam or high-beam.

Description

Halogenglühlampe für Fahrzeugscheinwerfer Halogen bulb for vehicle headlights
Die Erfindung betrifft eine Halogenglühlampe gemäß dem Oberbegriff des Patentanspruchs 1. The invention relates to a halogen incandescent lamp according to the preamble of patent claim 1.
I . Stand der Technik I. State of the art
Eine derartige Halogenglühlampe ist beispielsweise in der WO 96/05610 Al offenbart. Diese Schrift beschreibt eine Zweifaden-Halogenglühlampe für Fahrzeugscheinwerfer, insbesondere eine H4-Lampe, mit zwei Glühwendeln zum Erzeugen des Abblendlichts bzw. Fernlichts.  Such a halogen incandescent lamp is disclosed, for example, in WO 96/05610 A1. This document describes a two-filament halogen incandescent lamp for vehicle headlights, in particular a H4 lamp, with two incandescent filaments for generating the low beam or high beam.
Gemäß gesetzlicher Vorschriften, wie beispielsweise ECE Regel 37 oder SAE, müssen die Abblendlichtglühwendel und Fernlichtglühwendel einer Zweifaden-Halogenglühlampe vom Typ H4-, H13- oder HB2-Lampe, die zum Betrieb an einer Bordnetzspannung von nominal 12 Volt vorgesehen sind, bei einer PrüfSpannung von 13,2 Volt (für H4- und H13-Lampen) bzw. 12,8 Volt (bei HB2-Lampen) einen Lichtstrom gemäß den Werten in der nachstehenden Tabelle 1 generieren. In accordance with statutory requirements, such as ECE Regulation 37 or SAE, the low beam filament and the high beam filament of a dual-filament H4, H13 or HB2 halogen bulb, which are designed to operate on a nominal 12 V electrical system voltage, shall be tested at a test voltage of 13.2 volts (for H4 and H13 lamps) or 12.8 volts (for HB2 lamps) generate a luminous flux according to the values in Table 1 below.
Tabelle 1: Table 1:
Lampentyp Lichtstrom der Ab- Lichtstrom der Fernblendlichtglühwende1 lichtglühwendel  Lamp type Luminous flux of the Ab- Luminous flux of the long-distance glare lamp turning 1 lichtglühwendel
H4-Lampe 1000 Im ± 15% 1650 Im ± 15% H4 lamp 1000 In ± 15% 1650 In ± 15%
H13-Lampe 1100 Im ± 15% 1700 Im ± 15% H13 lamp 1100 In ± 15% 1700 In ± 15%
HB2-Lampe 910 Im ± 10% 1500 Im ± 10% HB2 lamp 910 In ± 10% 1500 In ± 10%
Die elektrische Leistungsaufnahme der Abblendlichtglühwendel der H4-, H13- und der HB2-Lampe beträgt bei 12 Volt jeweils 55 Watt. Die elektrische Leistungsaufnahme der Fernlichtglühwendel der H4-, H13- und HB2-Lampe beträgt bei 12 Volt jeweils 60 Watt. The electric power consumption of the low-beam filament of the H4, H13 and HB2 lamps is at 12 volts each 55 watts. The electric power consumption of the high-beam filament of the H4, H13 and HB2 lamps is 60 watts at 12 volts.
Außerdem sind Einfaden-Halogenglühlampen für Fahrzeug- Scheinwerfer bekannt, die in einem Abblendlichtscheinwerfer oder in einem Fernlichtscheinwerfer als Lichtquelle verwendbar sind. Beispiele für solche Einfaden-Halogenglühlampen sind Hl-, H3-, H7- und Hll-Lampen. In addition, filament halogen incandescent lamps for vehicle headlamps are known which can be used in a low beam headlight or in a high beam headlight as a light source. Examples of such single-filament halogen lamps are Hl, H3, H7 and Hll lamps.
Gemäß ECE Regel 37 muss die Glühwendel einer Hl-, H3- H7- oder Hll-Lampe, die zum Betrieb an einer Bordnetzspannung von nominal 12 Volt vorgesehen ist, bei einer Prüfspannung von 13,2 Volt einen Lichtstrom gemäß den Werten in der nachstehenden Tabelle 2 erzeugen. In accordance with ECE Rule 37, the filament of a Hl, H3, H7 or Hll lamp intended to be operated on a nominal 12 V electrical system voltage shall, at a test voltage of 13.2 volts, have a luminous flux according to the values in the table below 2 generate.
Tabelle 2: Table 2:
Lampentyp Lichtstrom  Lamp type luminous flux
HI-Lampe 1550 Im ± 15% HI lamp 1550 In ± 15%
H3-Lampe 1450 Im ± 15% H3 lamp 1450 In ± 15%
H7-Lampe 1500 Im ± 10% H7 lamp 1500 In ± 10%
Hll-Lampe 1350 Im ± 10% Diese Einfaden-Halogenglühlampen vom Typ Hl-, H3- H7- oder Hll-Lampe besitzen jeweils eine elektrische Leistungsaufnahme von nominal 55 Watt. Hll Lamp 1350 ± 10% These H-type, H3-H7 or Hll-type single-filament halogen lamps each have a nominal power consumption of 55 watts.
Bei Fahrzeugen, die keine Tagfahrscheinwerfer besitzen, werden üblicherweise die Lichtquellen der Abblendlicht- Scheinwerfer genutzt, um in Ländern, die ein Fahren mit Licht auch tagsüber vorschreiben, ein Tagfahrlicht oder Dauerfahrlicht zu erzeugen. Die oben beispielhaft aufgeführten konventionellen Halogenglühlampen sind aber hinsichtlich ihrer elektrischen Leistungsaufnahme und Le- bensdauer für den Einsatz als Dauerfahrlicht oder Tagfahrlicht nicht ausgelegt. For vehicles that do not have daytime running lights, the dipped beam headlamps are usually used to drive in countries where driving is required Prescribe light also during the day, to produce a daytime running light or continuous running light. However, the conventional halogen incandescent lamps listed above by way of example are not designed for use as continuous running lights or daytime running lights in terms of their electrical power consumption and service life.
II. Darstellung der ErfindungII. Presentation of the invention
Es ist Aufgabe der Erfindung, eine gattungsgemäße Halogenglühlampe für Fahrzeugscheinwerfer bereitzustellen, die zum Einen die Anforderungen an den Einsatz zum Erzeu- gen des Abblendlicht oder Fernlichts erfüllen und zum Anderen besser geeignet sind, um zusätzlich auch als Tagfahrlicht oder Dauerfahrlicht dienen zu können. It is an object of the invention to provide a generic halogen incandescent lamp for vehicle headlights, on the one hand fulfill the requirements for use for generating the low beam or high beam and on the other hand are better suited to additionally serve as daytime running or permanent running light.
Diese Aufgabe wird erfindungsgemäß durch eine Halogenglühlampe mit den Merkmalen des Patentanspruchs 1 gelöst. Besonders vorteilhafte Ausführungen der Erfindung sind in den abhängigen Patentansprüchen beschrieben. This object is achieved by a halogen incandescent lamp with the features of claim 1. Particularly advantageous embodiments of the invention are described in the dependent claims.
Die erfindungsgemäße Halogenglühlampe für Fahrzeugscheinwerfer weist mindestens einen Glühfaden auf, der derart ausgebildet ist, dass er als Lichtquelle zum Erzeugen des Abblendlichts oder Fernlichts verwendbar ist. Das heißt, der Glühfaden der erfindungsgemäßen Halogenglühlampe ist derart ausgebildet, dass er während seines Betriebs mit der PrüfSpannung von 13,2 Volt bzw. 12,8 Volt einen Lichtstrom erzeugt, der, im Fall einer Zweifaden- Halogenglühlampe, im Bereich der Lichtstromwerte der Abblendlichtglühwendel der konventionellen H4-, HB2- oder H13-Lampe liegt oder, im Fall einer Einfaden- Halogenglühlampe, im Bereich der Lichtstromwerte der Glühwendel der konventionellen Hl-, H3-, H7- oder HIl- Lampe liegt. Zusätzlich ist der Glühfaden der erfindungsgemäßen Halogenglühlampe derart ausgebildet, dass er während seines Betriebs eine niedrigere elektrische Leis- tungsaufnähme besitzt als Glühfäden konventioneller Halogenglühlampen, die zum Erzeugen von Abblendlicht oder Fernlicht verwendbar sind. Insbesondere ist bei den erfindungsgemäßen Versionen der Einfaden-Halogenglühlampen vom Typ Hl-, H3-, H7- oder Hll-Lampe der Glühfaden derart ausgebildet, dass er während seines Betriebs mit der PrüfSpannung von 13,2 Volt einen Lichtstrom im Wertebereich der konventionellen Hl-, H3-, H7- oder Hll-Lampe gemäß ECE Regel 37 wie in Tabelle 2 angegeben erzeugt, aber eine geringere elektrische Leistungsaufnahme be- sitzt. Außerdem ist insbesondere bei den erfindungsgemäßen Versionen der Zweifaden-Halogenglühlampen vom Typ H13-, H4- oder HB2-Lampe zumindest der Abblendlichtglühfaden derart ausgebildet, dass er während des Betriebs mit der PrüfSpannung von 13,2 Volt bzw. 12,8 Volt einen Lichtstrom im Wertebereich der konventionellen H13-, H4- oder HB2-Lampe gemäß ECE Regel 37 bzw. SAE wie in Tabelle 1 angegeben erzeugt, aber eine geringere elektrische Leistungsaufnahme besitzt. Dadurch verursachen die erfindungsgemäßen Halogenglühlampen beim Einsatz als Tagfahr- licht oder Dauerlicht einen geringeren Treibstoffverbrauch und eine entsprechend geringere Cθ2-Emission als konventionelle Halogenglühlampen. Außerdem sind die erfindungsgemäßen Halogenglühlampen derart ausgebildet, dass durch ihren vorgenannten Einsatz und der entspre- chend verlängerten Betriebsdauer möglichst keine Verkürzung der Lampenwechselintervalle verursacht wird. Der besagte Glühfaden der erfindungsgemäßen Halogenglühlampen ist vorzugsweise derart ausgebildet, dass seine elektrische Leistungsaufnahme um mindestens 5% vorzugsweise sogar um mindestens 8% geringer ist als die elekt- rische Leistungsaufnahme des Glühfadens der konventionellen Halogenglühlampen. Die elektrische Leistungsaufnahme des vorgenannten Glühfadens der erfindungsgemäßen Halogenglühlampe ist beim Betrieb an einer Bordnetzspannung von nominal 12 Volt kleiner als 55 Watt und vorzugsweise sogar kleiner als 50 Watt. The halogen incandescent lamp according to the invention for vehicle headlights has at least one filament, which is designed such that it can be used as a light source for generating the low beam or high beam. That is, the filament of the halogen incandescent lamp according to the invention is designed such that it produces a luminous flux during its operation with the test voltage of 13.2 volts or 12.8 volts, which, in the case of a two-filament halogen incandescent lamp, in the range of the luminous flux values of the low-beam filament the conventional H4, HB2 or H13 lamp or, in the case of a single-filament halogen incandescent lamp, in the range of the luminous flux values Filament of conventional Hl, H3, H7 or HIl lamp is located. In addition, the filament of the halogen incandescent lamp according to the invention is designed such that it has a lower electrical power consumption during its operation than filaments of conventional halogen incandescent lamps, which can be used for producing low beam or high beam. In particular, in the versions according to the invention of the single-halogen halogen lamps of the HI, H3, H7 or HII lamp type, the filament is designed in such a way that, during its operation with the test voltage of 13.2 volts, a luminous flux in the value range of conventional Hl- , H3, H7 or Hll lamp according to ECE rule 37 as shown in Table 2, but has a lower electrical power consumption. In addition, at least the Abblendlichtglühfaden is designed such that during operation with the test voltage of 13.2 volts and 12.8 volts, a luminous flux in the particular case of the versions of the invention two-filament halogen lamps of the type H13, H4 or HB2 Value range of the conventional H13, H4 or HB2 lamp according to ECE Rule 37 or SAE as shown in Table 1, but has a lower electrical power consumption. As a result, when used as daytime running light or continuous light, the halogen incandescent lamps according to the invention cause lower fuel consumption and a correspondingly lower CO 2 emission than conventional halogen incandescent lamps. In addition, the halogen incandescent lamps according to the invention are designed such that as far as possible no shortening of the lamp replacement intervals is caused by their aforementioned use and the correspondingly extended operating time. Said filament of the halogen incandescent lamps according to the invention is preferably designed such that its electrical power consumption is at least 5% and preferably even at least 8% lower than the electrical power consumption of the filament of conventional halogen incandescent lamps. The electrical power consumption of the aforementioned filament of the halogen incandescent lamp according to the invention is less than 55 watts and preferably even less than 50 watts when operating on a vehicle electrical system voltage of nominal 12 volts.
Der als Wendel ausgebildete Glühfaden der erfindungsgemäßen Versionen der Einfaden-Halogenglühlampen und der als Wendel ausgebildete Abblendlichtglühfaden der erfindungsgemäßen Zweifaden-Halogenglühlampen besitzt vorzugsweise eine geringere Drahtstärke als die Glühwendel der konventionellen Einfaden-Halogenglühlampen bzw. als die Abblendlichtglühwendel der konventionellen Zweifaden-Halogenglühlampen, um auf einfache Weise eine reduzierte Leistungsaufnahme zu ermöglichen. Gemäß einem bevorzugten Ausführungsbeispiel einer erfindungsgemäßen Einfaden-Halogenglühlampe, insbesondere einer erfindungsgemäßen Version einer H7-Lampe, ist der Glühfaden als Wendel ausgebildet, deren Wendellänge im Bereich von 4,20 mm bis 4,35 mm liegt und deren Steigung im Bereich von 250 μm bis 260 μm liegt und deren Drahtstärke im Bereich von 148,9 μm bis 153,1 μm liegt. Der Kernfaktor liegt vorzugsweise im Bereich von 6,45 bis 6,65 und der Steigungsfaktor im Bereich von 1,68 bis 1,72. Gemäß einem bevorzugten Ausführungsbeispiel einer erfindungsgemäßen Zweifaden-Halogenglühlampe, insbesondere einer erfindungsgemäßen Version einer HB2- oder H4-Lampe, ist der Abblendlichtglühfaden als Wendel ausgebildet, de- ren Wendellänge im Bereich von 5,40 mm bis 5,60 mm liegt und deren Steigung im Bereich von 265 μm bis 285 μm liegt und deren Drahtstärke im Bereich von 159, 6 μm bis 164,1 μm liegt. Der Kernfaktor liegt vorzugsweise im Bereich von 5,1 bis 5,4 und der Steigungsfaktor im Bereich von 1, 68 bis 1, 71. The helical filament of the inventive versions of the single-filament halogen incandescent lamps and the filament-shaped filament filament of the double-filament halogen incandescent lamp according to the invention preferably has a smaller wire thickness than the incandescent filament of the conventional single-filament halogen lamps or as the low-beam filament of the conventional two-filament halogen incandescent lamps Way to allow a reduced power consumption. According to a preferred embodiment of a filament halogen incandescent lamp according to the invention, in particular a version of an H7 lamp according to the invention, the filament is formed as a helix whose helical length is in the range of 4.20 mm to 4.35 mm and whose pitch in the range of 250 microns to 260 microns and whose wire thickness is in the range of 148.9 microns to 153.1 microns. The core factor is preferably in the range of 6.45 to 6.65 and the slope factor in the range of 1.68 to 1.72. According to a preferred embodiment of a two-filament halogen incandescent lamp according to the invention, in particular a version of an HB2 or H4 lamp according to the invention, the low-beam filament is formed as a helix whose helix length is in the range from 5.40 mm to 5.60 mm and whose pitch in the Range of 265 microns to 285 microns and whose wire thickness is in the range of 159, 6 microns to 164.1 microns. The core factor is preferably in the range of 5.1 to 5.4 and the slope factor in the range of 1.68 to 1.71.
Die erfindungsgemäße Halogenglühlampe enthält vorteilhafterweise als Füllgas zusätzlich zur Halogenfüllung Krypton, um die Wolframverdampfungsrate des Glühfadens zu verringern und die Lebensdauer der Halogenglühlampe zu verlängern. Weiterhin kann das Füllgas zusätzlich zum Krypton oder anstelle von Krypton auch Xenon enthalten, um die Wolframverdampfungsrate des Glühfadens zu verringern und die Lebensdauer der Halogenglühlampe zu verlängern. Xenon hat aufgrund seiner höheren Atommasse einen besseren Effekt als Krypton, ist aber dafür kostspieliger . The halogen incandescent lamp according to the invention advantageously contains krypton as filling gas in addition to the halogen filling in order to reduce the tungsten evaporation rate of the filament and to extend the service life of the halogen incandescent lamp. Further, in addition to krypton or instead of krypton, the fill gas may also contain xenon to reduce the tungsten vaporization rate of the filament and extend the life of the halogen incandescent lamp. Xenon has a better effect than krypton because of its higher atomic mass, but is more expensive.
Die erfindungsgemäße Halogenglühlampe besitzt ein gläsernes, den mindestens einen Glühfaden umschließendes Lampengefäß, das mit einer lichtundurchlässig und lichtre- flektierend ausgebildeten Kuppe versehen sein kann, um den Nutzlichtanteil der Lampe zu erhöhen. The halogen incandescent lamp according to the invention has a glass lamp vessel surrounding the at least one filament, which can be provided with a dome formed opaque and light-reflecting in order to increase the useful light component of the lamp.
III. Beschreibung der bevorzugten AusführungsbeispieleIII. Description of the preferred embodiments
Nachstehend wird die Erfindung anhand von bevorzugten Ausführungsbeispielen näher erläutert. Es zeigen: Figur 1 Eine Seitenansicht einer Einfaden-Halogenglüh- lampe gemäß dem ersten Ausführungsbeispiel der Erfindung in schematischer Darstellung The invention will be explained in more detail below with reference to preferred exemplary embodiments. Show it: Figure 1 is a side view of a filament Halogenglüh- lamp according to the first embodiment of the invention in a schematic representation
Figur 2 Eine Seitenansicht einer Zweifaden-Halogenglüh- lampe gemäß dem zweiten Ausführungsbeispiel derFigure 2 is a side view of a two-filament Halogenglüh- lamp according to the second embodiment of the
Erfindung in schematischer Darstellung Invention in a schematic representation
In Figur 1 ist eine erfindungsgemäße Einfaden-Halogen- glühlampe vom Typ H7-Lampe gemäß dem ersten Ausführungsbeispiel schematisch abgebildet. Sie ist für den Betrieb an einer Fahrzeugbordnetzspannung von nominal 12 Volt vorgesehen. Diese Lampe besitzt ein gläsernes, im wesentlichen zylindrisches Lampengefäß 1, das an einem Ende mit einem Sockel 2 versehen ist. Das andere Ende des Lampengefäßes 1, das heißt die Kuppe 8 des Lampengefäßes 1 ist mit einer lichtundurchlässigen, lichtreflektierenden, silberfarbenen oder grünen Beschichtung versehen. Innerhalb des Lampengefäßes 1 ist ein als einfach gewickelte Wendel (single coiled filament) ausgebildeter Glühfaden 3 angeordnet. Die Glühwendel 3 ist axial bzw. parallel zur Lampengefäßachse ausgerichtet. Die mit einem Molybdän- röhrchen umhüllten Wendelabgänge der Glühwendel 3 sind jeweils mit einem Stromzuführungsdraht 4, 5 verschweißt. Die beiden Stromzuführungsdrähte 4, 5 sind jeweils elektrisch leitend mit einem elektrischen Anschluss 6, 7 des Sockels 2 verbunden. Das Lampengefäß 1 besteht aus Quarzglas oder Hartglas, beispielsweise Alumosilikatglas . Der Innenraum des Lampengefäßes 1 ist mit Gas gefüllt, das eine Halogenfüllung und ein Edelgas oder Edelgasgemisch mit den Bestandteilen Xenon oder bzw. und Krypton ent- hält. Der Füllgasdruck bei Zimmertemperatur (22°C) liegt im Bereich von 1,0 Megapascal bis 1,5 Megapascal. Diese Einfaden-Halogenglühlampe bzw. ihre Glühwendel 3 erzeugt während des Betriebs an der PrüfSpannung von 13,2 Volt einen Lichtstrom im Bereich von 1500 Im ±10%. Die elekt- rische Leistungsaufnahme dieser Lampe bzw. ihrer Glühwendel 3 beträgt beim Betrieb mit einer Spannung von 12 Volt 44,9 Watt. Die Daten der Glühwendel 3 einer erfindungsgemäßen H7-Halogenglühlampe sind in der linken Spalte der nachstehenden Tabelle 3 aufgelistet. In der rechten Spal- te der Tabelle 3 sind zum Vergleich die entsprechenden Daten der Glühwendel einer konventionellen H7-Halogen- glühlampe aufgelistet. 1 shows a filament halogen incandescent lamp according to the invention of the type H7 lamp according to the first embodiment is shown schematically. It is designed to operate on a vehicle electrical system voltage of nominal 12 volts. This lamp has a glassy, substantially cylindrical lamp vessel 1, which is provided at one end with a base 2. The other end of the lamp vessel 1, that is, the dome 8 of the lamp vessel 1 is provided with an opaque, light-reflecting, silver-colored or green coating. Within the lamp vessel 1, a filament 3 formed as a single-coiled filament is arranged. The filament 3 is aligned axially or parallel to the lamp vessel axis. The coiled with a molybdenum tube Wendelabgänge the filament 3 are each welded to a power supply wire 4, 5 welded. The two power supply wires 4, 5 are each electrically connected to an electrical connection 6, 7 of the base 2. The lamp vessel 1 consists of quartz glass or hard glass, for example aluminosilicate glass. The interior of the lamp vessel 1 is filled with gas containing a halogen filling and a noble gas or noble gas mixture with the constituents xenon or or and krypton. The filling gas pressure is at room temperature (22 ° C) in the range of 1.0 megapascals to 1.5 megapascals. This filament halogen incandescent lamp or its filament 3 generates during operation at the test voltage of 13.2 volts, a luminous flux in the range of 1500 Im ± 10%. The electrical power consumption of this lamp or its filament 3 is 44.9 watts when operating at a voltage of 12 volts. The data of the incandescent filament 3 of an H7 halogen incandescent lamp according to the invention are listed in the left-hand column of Table 3 below. In the right-hand column of Table 3, the corresponding data for the filament of a conventional H7 halogen incandescent lamp are listed for comparison.
Tabelle 3: Table 3:
Erfindungsgemäße Konventionelle Conventional according to the invention
H7-Lampe H7-Lampe H7 lamp H7 lamp
Kernfaktor 6,557 6,396 Core factor 6.557 6.396
Drahtstärke 151 μm 159,5 μm Wire thickness 151 μm 159.5 μm
Wendellänge 4,27 mm 4,37 mm Spiral length 4.27 mm 4.37 mm
Steigung 257 μm 263 μm Gradient 257 μm 263 μm
Steigungsfaktor 1,704 1, 649 Gradient factor 1.704 1, 649
Leistungsaufnahme 44, 9 W 55 W Power consumption 44, 9 W 55 W
Der Begriff Drahtstärke bezeichnet die Dicke bzw. den Durchmesser des Wolframdrahtes, aus dem die Glühwendel besteht. Der Begriff Kernfaktor bezeichnet den Quotienten von Innendurchmesser der Wendel zur Drahtstärke. Der Begriff Steigung bezeichnet die Summe aus Drahtstärke und dem Zwischenraum bzw. Abstand zwischen zwei benachbarten Windungen der Wendel. Der Begriff Steigungsfaktor bezeichnet den Quotienten von Steigung zu Drahtstärke. Der Begriff Wendellänge bezeichnet die räumliche Ausdehnung des gewickelten Teils der Wendel in Richtung ihrer Wickelachse gemessen. The term wire gauge refers to the thickness or diameter of the tungsten wire that makes up the filament. The term core factor denotes the quotient of the inner diameter of the helix to the wire thickness. The term slope denotes the sum of wire size and the space or distance between two adjacent turns of the helix. The term gradient factor denotes the quotient of gradient to wire thickness. The term helix length refers to the spatial extent of the wound part of the helix measured in the direction of its winding axis.
In Figur 2 ist eine erfindungsgemäße Zweifaden-Halogen- glühlampe vom Typ HB2-Lampe oder H4-Lampe schematisch dargestellt. Sie ist für den Betrieb an einer Fahrzeug- bordnetzspannung von nominal 12 Volt vorgesehen. Diese Fahrzeugscheinwerferlampe besitzt ein mit einem Lampensockel 21 versehenes, gläsernes Lampengefäß 22, das im wesentlichen axialsymmetrisch ausgebildet ist. Der Innenraum des Lampengefäßes 22 ist mit Gas gefüllt, das eine Halogenfüllung und ein Edelgas oder Edelgasgemisch mit den Bestandteilen Xenon oder bzw. und Krypton enthält. Der Füllgasdruck bei Zimmertemperatur (22°C) liegt im Bereich von 0,4 Megapascal bis 1,0 Megapascal. Innerhalb des Lampengefäßes 22 sind zwei Glühwendeln 23, 24 ange- ordnet, die mit Hilfe von drei Stromzuführungsdrähten 25, 26 und 27 elektrisch kontaktiert und fixiert sind. Jeder der Stromzuführungsdrähte 25 bis 27 ist aus dem abgedichteten Ende des Lampengefäßes 22 herausgeführt und jeweils mit einem elektrischen Anschluss 29 des Lampensockels 21 elektrisch leitend verbunden. Das andere Ende des Lampengefäßes 22, das heißt, die Kuppe des Lampengefäßes 22, ist mit einer lichtundurchlässigen, lichtreflektierenden silberfarbenen oder grünen Beschichtung 221 versehen. Die drei Stromzuführungsdrähte 25, 26 und 27 sind in einer gemeinsamen Ebene angeordnet und die Fahrzeugscheinwer- ferlampe ist während ihres Betriebs so ausgerichtet, dass die drei Stromzuführungsdrähte 25 bis 27 übereinander angeordnet sind. Die erste Glühwendel 23 der HB2-Lampe, die zur Erzeugung des Abblendlichts dient, besitzt beim Be- trieb mit einer Spannung von 12 Volt eine elektrische Leistungsaufnahme von 46,2 Watt und einen Lichtstrom von 910 Im ±10% (gemessen bei einer Prüfspannung von 12,8 Volt). Der sockelnahe erste Wendelabgang der Abblendlichtglühwendel 23 ist mit dem dritten Stromzufüh- rungsdraht 27 verbunden. Der sockelferne zweite Wendelabgang der Abblendlichtglühwendel 23 ist mit einer, die Abblendlichtglühwendel 23 teilweise umgebenden, metallischen Abblendkappe 28 verbunden. Die Abblendkappe 28 ist ihrerseits mit dem ersten Stromzuführungsdraht 25 ver- schweißt, so dass die Abblendlichtglühwendel 23 über die Stromzuführungsdrähte 25 und 27 sowie über die Abblendkappe 28 elektrisch kontaktiert ist. FIG. 2 diagrammatically shows a two-filament halogen incandescent lamp according to the invention of the HB2 lamp or H4 lamp type. It is designed to operate on a vehicle electrical system voltage of nominal 12 volts. This vehicle headlight bulb has a glass lamp vessel 22, which is provided with a lamp cap 21, and which is formed substantially axially symmetrically. The interior of the lamp vessel 22 is filled with gas containing a halogen filling and a noble gas or noble gas mixture with the components xenon or or and krypton. The filling gas pressure at room temperature (22 ° C) is in the range of 0.4 megapascals to 1.0 megapascals. Within the lamp vessel 22 two filaments 23, 24 are arranged, which are electrically contacted and fixed by means of three power supply wires 25, 26 and 27. Each of the power supply wires 25 to 27 is led out of the sealed end of the lamp vessel 22 and each electrically connected to an electrical terminal 29 of the lamp cap 21. The other end of the lamp vessel 22, that is, the top of the lamp vessel 22, is provided with an opaque, light-reflecting silver-colored or green coating 221. The three power supply wires 25, 26 and 27 are arranged in a common plane and the vehicle headlight During operation, the heat lamp is aligned such that the three power supply wires 25 to 27 are arranged one above the other. The first incandescent filament 23 of the HB2 lamp, which is used to produce the low beam, has an electrical power consumption of 46.2 watts and a luminous flux of 910 Im ± 10% (measured at a test voltage of 12.8 volts). The pedestal-like first filament outlet of the low-beam filament 23 is connected to the third Stromzufüh- wire 27. The second remote Wendelabgang the Abblendlichtglühwendel 23 remote from the base is connected to a, the Abblendlichtglühwendel 23 partially surrounding metallic Abblendkappe 28. The dimming cap 28 is in turn welded to the first power supply wire 25 so that the dipped beam filament 23 is electrically contacted via the power supply wires 25 and 27 as well as via the dimming cap 28.
Die zweite Glühwendel 24 der HB2-Lampe, die zur Erzeugung eines Fernlichts dient, besitzt beim Betrieb mit 12 Volt eine elektrische Leistungsaufnahme von nominal 60 Watt und einen Lichtstrom von 1500 Im ±10% (gemessen bei der Prüfspannung von 12,8 Volt) . Sie entspricht der Fernlichtglühwendel einer konventionellen HB2-Lampe. Beide Glühwendeln 23, 24 sind als einfach gewickelte Glühwen- dein (single coiled filament) ausgebildet. Der sockelnahe erste Wendelabgang der Fernlichtglühwendel 24 ist mit dem abgewinkelten Ende des zweiten Stromzuführungsdrahtes 26 verbunden. Der sockelferne zweite Wendelabgang der Fernlichtglühwendel 24 ist mit dem dritten Stromzuführungs- draht 27 verbunden. Die Wickelachsen der beiden Glühwen- dein 23, 24 sind parallel versetzt zur Lampengefäßachse angeordnet. Die Glühwendeln 23 und 24 bestehen üblicherweise aus Wolfram, während die Stromzuführungsdrähte 25, 26 und 27 sowie die Abblendkappe 28 aus Molybdän gefer- tigt sind. Die Verbindung der Wendelabgänge der Glühwendeln 23 und 24 mit den Stromzuführungsdrähten 25 bis 27 bzw. der Abblendkappe 28 wird beispielsweise auf die konventionelle Weise mit Hilfe von Molybdänröhrchen durchgeführt, welche die Wendelabgänge mit Klemmsitz umgeben und die mit den Stromzuführungsdrähten bzw. der Abblendkappe verschweißt sind. Tabelle 4 zeigt einen Vergleich der Wendeldaten . The second incandescent filament 24 of the HB2 lamp, which is used to produce a high beam, has an electrical power consumption of nominal 60 watts and a luminous flux of 1500 Im ± 10% (measured at the test voltage of 12.8 volts) when operating at 12 volts. It corresponds to the high-beam filament of a conventional HB2 lamp. Both filaments 23, 24 are designed as single-wound filaments. The sockelnahe first Wendelabgang the high beam filament 24 is connected to the angled end of the second power supply wire 26. The base remote second filament outlet of the high-beam filament 24 is connected to the third Stromzuführungs- wire 27. The winding axes of the two annealing your 23, 24 are arranged offset parallel to the lamp vessel axis. The incandescent filaments 23 and 24 are usually made of tungsten, while the power supply wires 25, 26 and 27 and the Abblendkappe 28 are made of molybdenum. The connection of the helical outlets of the incandescent filaments 23 and 24 with the power supply wires 25 to 27 and the Abblendkappe 28 is carried out, for example, in the conventional manner by means of molybdenum tubes which surround the Wendelabgänge with a press fit and which are welded to the power supply wires and the Abblendkappe. Table 4 shows a comparison of the helical data.
Tabelle 4: Table 4:
Abblendlichtglüh- Abblendlichtglüh- wendel der erfinwendel der kondungsgemäßen HB2- ventionellen HB2- Low-beam filament low-voltage filament of the inventive HB2 conventional HB2-
Lampe Lampe Lamp lamp
Kernfaktor 5,251 5, 849 Nuclear factor 5.251 5, 849
Drahtstärke 161, 9 μm 188,1 μm Wire thickness 161, 9 μm 188.1 μm
Wendellänge 5,51 mm 5,78 mm Spiral length 5,51 mm 5,78 mm
Steigung 274 μm 320 μm Gradient 274 μm 320 μm
Steigungsfaktor 1, 695 1,70 Gradient factor 1, 695 1.70
Leistungsaufnahme 46,2 W 55 W Power consumption 46.2 W 55 W
In der linken Spalte der Tabelle 4 sind die Daten der Ab- blendlichtglühwendel 23 der erfindungsgemäßen HB2-Lampe aufgelistet. In der rechten Spalte der Tabelle 4 sind zum Vergleich die entsprechenden Daten der Abblendlichtglühwendel konventioneller HB2-Lampen aufgelistet. In the left column of Table 4, the data of the Ablichtlichtglühwendel 23 of the HB2 lamp according to the invention are listed. In the right column of Table 4 are for Compare the corresponding data of the low beam filament conventional HB2 lamps listed.
Die Wendeldaten für die Zweifaden-Halogenglühlampe vom Typ HB2-Lampe können auch für Zweifaden-Halogenglühlampen vom Typ H4-Lampe verwendet werden, weil die beiden Lampentypen baulich und lichttechnisch sehr ähnlich sind. The filament data for the double-filament halogen incandescent lamp of the HB2 lamp type can also be used for double-filament halogen lamps of the H4 lamp type because the two lamp types are very similar structurally and photometrically.
Die Erfindung beschränkt sich nicht auf die oben näher beschriebenen Ausführungsbeispiele, sondern kann auch auf weitere Einfaden- oder Zweifaden-Halogenglühlampen ange- wandt werden. Außerdem kann die Erfindung auch auf Halogenglühlampen angewandt werden, die für den Betrieb an einer anderen Bordnetzspannung vorgesehen sind, beispielsweise an einer Bordnetzspannung von nominal 24 Volt oder 6 Volt. The invention is not limited to the exemplary embodiments described in more detail above, but can also be applied to further single-filament or two-filament halogen incandescent lamps. In addition, the invention can also be applied to halogen incandescent lamps, which are intended for operation on another vehicle electrical system voltage, for example at a vehicle electrical system voltage of nominally 24 volts or 6 volts.

Claims

Ansprüche claims
1. Halogenglühlampe für Fahrzeugscheinwerfer mit mindestens einem Glühfaden (3, 23) , der derart ausgebildet ist, dass er als Lichtquelle zum Erzeugen des Abblendlichts oder Fernlichts verwendbar ist, dadurch gekennzeichnet, dass 1. Halogen incandescent lamp for vehicle headlamp with at least one filament (3, 23) which is designed such that it can be used as a light source for generating the low beam or high beam, characterized in that
der Glühfaden (3, 23) derart ausgebildet ist, dass er während seines Betriebs eine niedrigere elektrische Leistungsaufnahme besitzt als Glühfäden konventioneller Halogenglühlampen, die zum Erzeugen von Abblendlicht oder Fernlicht verwendbar sind.  the filament (3, 23) is designed such that during its operation it has a lower electrical power consumption than filaments of conventional halogen incandescent lamps, which can be used for producing low beam or high beam.
2. Halogenglühlampe nach Anspruch 1, wobei der Glühfaden (3, 23) eine um mindestens 10 Prozent geringere elektrische Leistungsaufnahme als die Glühfäden der konventionellen Halogenglühlampen besitzt. 2. Halogen incandescent lamp according to claim 1, wherein the filament (3, 23) has an at least 10 percent lower electrical power consumption than the filaments of conventional halogen incandescent lamps.
3. Halogenglühlampe nach Anspruch 1 oder 2, wobei der Glühfaden (3, 23) bei seinem Betrieb an einer Fahrzeugbordnetzspannung von nominal 12 Volt eine elektrische Leistungsaufnahme von kleiner als 55 Watt, vorzugsweise kleiner als 50 Watt, besitzt. 3. Halogen incandescent lamp according to claim 1 or 2, wherein the filament (3, 23) in its operation on a vehicle electrical system voltage of nominal 12 volts, an electrical power consumption of less than 55 watts, preferably less than 50 watts, has.
4. Halogenglühlampe nach einem der Ansprüche 1 bis 3, wobei der Glühfaden (3, 23) als Wendel ausgebildet ist, die eine geringere Drahtstärke als die Glühfäden der konventionellen Halogenglühlampen besitzt. 4. Halogen incandescent lamp according to one of claims 1 to 3, wherein the filament (3, 23) is formed as a helix, which has a smaller wire thickness than the filaments of the conventional halogen incandescent lamps.
5. Halogenglühlampe nach einem der Ansprüche 1 bis 4, wobei die Halogenglühlampe als Einfaden-Halogen- glühlampe ausgebildet ist. 5. Halogen incandescent lamp according to one of claims 1 to 4, wherein the halogen incandescent lamp is designed as a filament halogen incandescent lamp.
6. Halogenglühlampe nach Anspruch 5, wobei der Glühfaden (3) der Einfaden-Halogenglühlampe als Wendel ausgebildet ist, deren Wendellänge im Bereich von 4,20 mm bis 4,35 mm liegt und deren Steigung im Be- reich von 250 μm bis 260 μm liegt und deren Drahtstärke im Bereich von 148,9 μm bis 153,1 μm liegt. 6. Halogen incandescent lamp according to claim 5, wherein the filament (3) of the single-filament halogen incandescent lamp is formed as a helix whose helical length is in the range of 4.20 mm to 4.35 mm and whose pitch in the range of 250 .mu.m to 260 .mu.m and whose wire thickness is in the range of 148.9 microns to 153.1 microns.
7. Halogenglühlampe nach einem der Ansprüche 1 bis 4, ausgebildet als Zweifaden-Halogenglühlampe mit jeweils einem Glühfaden (23, 24) zum Erzeugen von Ab- blendlicht und Fernlicht, wobei der besagte Glühfaden (23) der Glühfaden zum Erzeugen des Abblendlichts ist. 7. Halogen incandescent lamp according to one of claims 1 to 4, designed as a two-filament halogen incandescent lamp each having a filament (23, 24) for generating low beam and high beam, said filament (23) is the filament for generating the low beam.
8. Halogenglühlampe nach Anspruch 7, wobei der Glühfaden (23) zum Erzeugen des Abblendlichts als Wendel (23) ausgebildet ist, deren Wendellänge im Bereich von 5,40 mm bis 5,60 mm liegt und deren Steigung im Bereich von 265 μm bis 285 μm liegt und deren Drahtstärke im Bereich von 159,6 μm bis 164,1 μm liegt . 8. Halogen incandescent lamp according to claim 7, wherein the filament (23) for generating the low beam as a helix (23) is formed, whose helical length is in the range of 5.40 mm to 5.60 mm and the slope in the range of 265 microns to 285th microns and whose wire thickness is in the range of 159.6 microns to 164.1 microns.
9. Halogenglühlampe nach einem der Ansprüche 1 bis 8, wobei die Halogenglühlampe als Füllgas zusätzlich zur Halogenfüllung Krypton enthält. 9. Halogen incandescent lamp according to one of claims 1 to 8, wherein the halogen incandescent lamp contains in addition to the halogen filling krypton as filling gas.
10. Halogenglühlampe nach Anspruch 9, wobei das Füllgas zusätzlich Xenon enthält. 10. Halogen incandescent lamp according to claim 9, wherein the filling gas additionally contains xenon.
11. Halogenglühlampe nach einem der Ansprüche 1 bis 10, wobei die Halogenglühlampe ein gläsernes, den mindestens einen Glühfaden (3, 23) umschließendes Lampengefäß (1, 22) mit einer lichtundurchlässig und lichtreflektierend ausgebildeten Kuppe (8, 221) besitzt . 11. Halogen incandescent lamp according to one of claims 1 to 10, wherein the halogen incandescent lamp a glass, the at least one filament (3, 23) enclosing the lamp vessel (1, 22) with an opaque and has light-reflecting formed dome (8, 221).
EP10743086.0A 2009-08-14 2010-08-09 Halogen bulb for vehicle headlights Not-in-force EP2465134B1 (en)

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DE (1) DE102009037577A1 (en)
HU (1) HUE029064T2 (en)
WO (1) WO2011018427A1 (en)

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JP6368356B2 (en) 2013-05-13 2018-08-01 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Double filament incandescent lamp for automotive front illumination

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US5883468A (en) 1997-07-24 1999-03-16 Osram Sylvania Inc. Tungsten halogen lamp with specific fill material, fill pressure, and filament coil parameters
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DE102009037577A1 (en) 2011-02-17
US20120146495A1 (en) 2012-06-14
EP2465134B1 (en) 2016-02-17
US8692462B2 (en) 2014-04-08
WO2011018427A1 (en) 2011-02-17
HUE029064T2 (en) 2017-01-30

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