EP1932169A1 - Headlight lamp - Google Patents

Headlight lamp

Info

Publication number
EP1932169A1
EP1932169A1 EP06807018A EP06807018A EP1932169A1 EP 1932169 A1 EP1932169 A1 EP 1932169A1 EP 06807018 A EP06807018 A EP 06807018A EP 06807018 A EP06807018 A EP 06807018A EP 1932169 A1 EP1932169 A1 EP 1932169A1
Authority
EP
European Patent Office
Prior art keywords
lamp
headlight
vessel
lamp vessel
luminous flux
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
EP06807018A
Other languages
German (de)
French (fr)
Other versions
EP1932169B1 (en
Inventor
Klaus Knorr
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 EP1932169A1 publication Critical patent/EP1932169A1/en
Application granted granted Critical
Publication of EP1932169B1 publication Critical patent/EP1932169B1/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
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K7/00—Lamps for purposes other than general lighting
    • H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp

Definitions

  • the invention relates to a headlight lamp, insbeson ⁇ particular a halogen incandescent lamp for a vehicle headlight according to the preamble of claim 1.
  • Such a headlamp is disclosed, for example, in EP 0 461 508 A2.
  • This document describes a halogen lamp for a motor vehicle headlight, which has a glass lamp vessel with an attached therein ⁇ arranged filament.
  • the lamp vessel is fixed in egg ⁇ nem metal base, which is equipped with the electrical connections of the lamp.
  • This headlight bulb is a so-called HI bulb.
  • WO 96/05610 Al describes a headlamp type H4 lamp with two incandescent filaments, which are enclosed by a glass lamp vessel, which is fixed in a metal base.
  • the dome of the lamp vessel facing away from the metal base is provided with a black, opaque coating to prevent glare and stray light from the dome.
  • Headlamps has a higher luminance and whose luminous flux does not exceed the permissible upper limit according to ECE regulation 37.
  • the headlight lamp according to the invention has at least one incandescent filament enclosed by a lamp vessel which is constructed such that it generates a luminous flux during lamp operation whose value is greater than a predefined permissible maximum value for the luminous flux of the lamp.
  • the lamp vessel comprises according to the invention a region of reduced Licht manläs ⁇ stechnik on that reduces the outgoing light from the headlight lamp current to a value of less than or equal to the predetermined permissible maximum value for the luminous flux of the lamp during lamp operation.
  • FIG. 1 corresponding comparative values on the example of headlamp ⁇ lamps of the type Hl for a conventional HI-lamp 1 and a HI-lamp 2 according to the invention are shown for illustrative purposes.
  • the conventional HI lamp 1 generates a luminous flux of 1475 Im at a supply voltage of 13.2 V
  • the HI lamp 2 according to the invention generates a luminous flux of 1715 Im at the same supply voltage.
  • the standard mean value of the luminous flux is 1550 Im for HI lamps according to the prior art.
  • the filament is designed so that it generates a luminous flux whose value is significantly greater than the specified according to the standard ECE rule 37 maximum permissible value for the luminous flux of HI lamps of 1782.5 Im.
  • the filament is designed to generate a luminous flux of more than 2000 Im, which by means of the aforesaid lamp vessel area with reduced light transmittance, is less than or equal to the permissible maximum luminous flux value for HI lamps of 1782.5 Im, according to the example in Figure 1 is reduced to a value of 1715 Im. That is, the HI lamp 2 according to the invention produces a light flux which is 16 percent higher than that of the conventional HI lamp 1.
  • Figure 2 shows a comparison of their luminance for these headlamps.
  • the conventional HI lamp 1 has a luminance of 2.3 ⁇ 10 ⁇ cd / m ⁇ and the HI lamp 2 according to the invention has a luminance of 3.7 ⁇ 10 ⁇ cd / m ⁇ . Accordingly, the luminance of the HI lamp 2 according to the invention is 61 percent higher than that of the conventional HI lamp 1. Due to its higher luminance, the headlamp according to the invention is superior to a conventional headlamp lamp both in its use in a low beam headlamp and in a high beam headlamp, because it provides in the important distance points or range values in front of the headlight for a higher illuminance.
  • Figure 3 shows an example of a comparison of the illuminance at the important distances of a passing lamp for legal transactions ge ⁇ the Standard ECE / 324 Regulation No. Gurss 112 with use - A -
  • FIG. 4 shows the same comparison when the same lamps are used as the light source in the low-beam headlamp of another motor vehicle. It can be seen from the comparative values of FIGS. 3 and 4 that the headlamp 2 according to the invention in the dipped-beam headlamps of both vehicle types has a significant increase in illuminance in the important distance points 75R, 5OR, 50V, 25L, 25R and zone IV in comparison to the conventional headlamp 1 ECE / 324 Regulation no. 112 on a screen 25 m away from the headlights.
  • FIG. 5 shows a comparison of the illuminance in the optical axis H / V and in the maximum of the illuminance when using a conventional HI lamp 1 and a HI lamp 2 according to the invention in the high beam headlight of a motor vehicle.
  • Figure 6 shows the same comparison for the same lamps in the high beam headlamp of another motor vehicle. From the comparison values in FIGS. 5 and 6, it can be seen that the HI lamp 2 according to the invention, in comparison to the conventional HI lamp 1 in the high beam headlamp of both motor vehicles, significantly increases the illuminance both in the optical axis H / V and in the maximum of FIG illuminance he ⁇ made possible.
  • the invention can also be applied to other headlamps, which usually have no opaque dome aufwei ⁇ sen, such as applied to H2 and H3 lamps.
  • headlamps which usually have no opaque dome aufwei ⁇ sen
  • the permissible maximum value for the luminous flux according to ECE Rule 37 is at a supply voltage of 13.2 volts, for example 2070 lm, while the permissible maximum value for the luminous flux of H3 lamps according to ECE regulation 37 at a supply voltage of 13.2 V is 1667.5 Im.
  • the at least one incandescent filament which it ⁇ inventive headlight lamp is constructed such that they neriert a luminous flux ge ⁇ during lamp operation which is at least 10 percent sigen above the zuläs ⁇ maximum value is the luminous flux of the lamp, but with the area of reduced light transmittance of the lamp vessel thereto, resulting in the smaller of which he outgoing ⁇ inventive lamp luminous flux to a value equal to or above the permissible maximum value for the luminous flux of the lamp is reduced, and so the requirement in accordance with ECE regulation is maintained 37th
  • the range of the lamp vessel with reduced permeability ⁇ is arranged at the end remote from the lamp base end of the lamp vessel, which is preferably designed as a tip.
  • the area of the lamp vessel with reduced light transmission extends not only over the top of the lamp vessel, but also to ⁇ part of an adjacent to the dome axisymmetric portion of the lamp vessel.
  • the portion of the lamp vessel with reduced permeability ⁇ is advantageously designed as lichtun press ⁇ fäß Kunststoffes permeable coating on the surface of Lampenge-, since this coating is produced with ver ⁇ tively simple means.
  • Coating can be used, for example, carbonyl iron, which is known from the top coating in H4 and H7 lamps.
  • the distance of the region of the lamp vessel with reduced light transmission from a reference plane of the lamp cap, with respect to which the position of the at least one filament is adjusted is 31.50 millimeters ⁇ 0.30 millimeters.
  • Figure 1 shows a comparison of the luminous flux of a fiction, modern ⁇ HI-lamp with a conventional HI-lamp according to the prior art
  • Figure 2 A comparison of the luminance of a HI lamp according to the invention with a conventional HI lamp according to the prior art
  • FIG. 3 shows a comparison of the illuminance when using a HI lamp according to the invention and a conventional HI lamp according to the prior art as a light source in the low-beam headlamp of a motor vehicle
  • FIG. 4 shows a comparison of the illuminance when using a HI lamp according to the invention and a conventional HI lamp according to the prior art Technique as a light source in the low beam headlight of another motor vehicle
  • FIG. 5 shows a comparison of the illuminance at Ver ⁇ application of a HI-lamp according to the invention and a conventional HI-lamp according to the prior art as the light source in the high-beam headlights of a motor vehicle
  • FIG. 6 shows a comparison of the illuminance at Ver ⁇ application of a HI-lamp according to the invention and a conventional HI-lamp according to the prior art as the light source in the beam headlight of another motor vehicle
  • Figure 7 is a side view of a headlight lamp according to the invention in a schematic representation
  • Figure 8 is a side view of the headlight lamp Fi gur ⁇ 7 turned in a 90 degrees about its longitudinal axis ge ⁇ side view schematic representation of
  • FIGS. 7 and 8 show diagrammatically two different side views of a headlight lamp according to the invention.
  • This headlamp is a halogen incandescent lamp type Hl, which has a nominal voltage of 12 volts and an electrical power consumption ⁇ of 55 watts.
  • This headlight lamp loading sits a glass lamp vessel 10 with a draw Together ⁇ th end 101 which is fixed in a metallic base sleeve of the lamp cap 12th
  • the lamp cap 12 is provided with a base flange 13 with respect to which spatial position of the lamp vessel 10 enclosed Glüh ⁇ helix 14 is adjusted.
  • the base flanges plane defines a reference plane for the adjustment of the filament 14.
  • the lamp vessel 10 has a tip 103 opposite its sealed end 101.
  • the portion 102 of the lamp vessel 10 between the sealed end 101 and the tip 13 surrounding the filament 14, is axialsym ⁇ metric, designed, in particular circular cylindrical.
  • the tip 103 and a portion 104 of the adjoining circular-cylindrical lamp vessel portion 102 are on ih ⁇ rer outer surface with an opaque coating-105 provided, for example, from carbonyl iron.
  • the distance of the coating 105 to the base flange 13 of the lamp cap 12 is 31.50 mm ⁇ 0.30 mm.
  • the filament 14 is easily coiled, has 15 Windun ⁇ gen a core diameter of 652.3 microns, a core factor of 3.922, a slope of 288.9 microns, a pitch factor of 1,737, a cold resistance of 102.29 milliohms and an effective length of wire of 39.84 mm.
  • the effective wire length designates the length of the wire of the coiled part of the incandescent filament.
  • Ge ⁇ compared to the conventional HI lamp has in the HI lamp according to the preferred embodiment of the invention, the incandescent filament 14 by about 17.4 percent reduced cold resistance.
  • the filament 14 generates the Be ⁇ the lamp operating with a supply voltage of 13.2 V a luminous flux of 2012 Im by means of the coating 105 is reduced to a value of 1715 Im.
  • the invention is not limited to the above-explained embodiment of the invention, but can also be applied to other headlamps, for example H2 and H3 lamps are used. Furthermore, the invention can also be applied to two-filament lamps, for example to H15 lamps. H15 lamps have an incandescent filament for generating the daytime running light and another filament for generating the high beam.
  • the high beam filament may be designed to generate a luminous flux during operation greater than a predetermined allowable maximum value for the luminous flux of the H15 lamp and, for example, the top of the lamp vessel has a light-impermeable coating, by means of which the luminous flux emanating from the high-beam incandescent filament is reduced to a value of less than or equal to the predetermined permissible maximum value.
  • the invention can also be applied to headlight lamps, which are designed for a different Bordnetznennrati than 12 V, for example for a Bordnetznennrati of 24V.

Abstract

A headlight lamp with at least one incandescent filament, which is surrounded by a lamp vessel. The at least one incandescent filament is constructed in such a way that during lamp operation it generates a luminous flux, the value of which is greater than a predetermined permissible maximum value for the luminous flux of the lamp. The lamp vessel has a region of reduced transparency, with the aid of which the luminous flux emerging from the headlight lamp during lamp operation is reduced to a value of less than or equal to the predetermined permissible maximum value.

Description

Scheinwerferlampeheadlight bulb
Die Erfindung betrifft eine Scheinwerferlampe, insbeson¬ dere eine Halogenglühlampe für einen Fahrzeugscheinwerfer, gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a headlight lamp, insbeson ¬ particular a halogen incandescent lamp for a vehicle headlight according to the preamble of claim 1.
I . Stand der TechnikI. State of the art
Eine derartige Scheinwerferlampe ist beispielsweise in der EP 0 461 508 A2 offenbart. Diese Schrift beschreibt eine Halogenglühlampe für einen Kraftfahrzeugscheinwerfer, die ein gläsernes Lampengefäß mit einer darin ange¬ ordneten Glühwendel aufweist. Das Lampengefäß ist in ei¬ nem Metallsockel fixiert, der mit den elektrischen An- Schlüssen der Lampe ausgestattet ist. Bei dieser Scheinwerferlampe handelt es sich um eine so genannte HI-Lampe.Such a headlamp is disclosed, for example, in EP 0 461 508 A2. This document describes a halogen lamp for a motor vehicle headlight, which has a glass lamp vessel with an attached therein ¬ arranged filament. The lamp vessel is fixed in egg ¬ nem metal base, which is equipped with the electrical connections of the lamp. This headlight bulb is a so-called HI bulb.
Die WO 96/05610 Al beschreibt eine Scheinwerferlampe vom Typ H4-Lampe mit zwei Glühwendeln, die von einem gläsernen Lampengefäß, das in einem Metallsockel fixiert ist, umschlossen sind. Die vom Metallsockel abgewandte Kuppe des Lampengefäßes ist mit einer schwarzen, lichtundurchlässigen Beschichtung versehen, um Blendlicht und Streulicht von der Kuppe zu vermeiden.WO 96/05610 Al describes a headlamp type H4 lamp with two incandescent filaments, which are enclosed by a glass lamp vessel, which is fixed in a metal base. The dome of the lamp vessel facing away from the metal base is provided with a black, opaque coating to prevent glare and stray light from the dome.
II . Darstellung der ErfindungII. Presentation of the invention
Es ist Aufgabe der Erfindung, eine Scheinwerferlampe be- reitzustellen, die im Vergleich zu den herkömmlichenIt is an object of the invention to provide a headlamp lamp, which compared to the conventional
Scheinwerferlampen eine höhere Leuchtdichte besitzt und deren Lichtstrom die zulässige Obergrenze gemäß ECE-Regel 37 nicht überschreitet.Headlamps has a higher luminance and whose luminous flux does not exceed the permissible upper limit according to ECE regulation 37.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst. Besonders vorteilhafte Ausfüh- rungen der Erfindung sind in den abhängigen Patentansprüchen beschrieben.This object is achieved by the features of claim 1. Particularly advantageous embodiments of the invention are described in the dependent claims.
Die erfindungsgemäße Scheinwerferlampe besitzt mindestens eine von einem Lampengefäß umschlossene Glühwendel die derart konstruiert ist, dass sie während des Lampenbe- triebs einen Lichtstrom generiert, dessen Wert größer ist als ein vorgegebener zulässiger Maximalwert für den Lichtstrom der Lampe. Zusätzlich weist das Lampengefäß erfindungsgemäß einen Bereich verringerter Lichtdurchläs¬ sigkeit auf, der während des Lampenbetriebs den von der Scheinwerferlampe ausgehenden Lichtstrom auf einen Wert von kleiner oder gleich dem vorgegebenen zulässigen Maximalwert für den Lichtstrom der Lampe reduziert. Dadurch wird bei den erfindungsgemäßen Scheinwerferlampen die Leuchtdichte gegenüber den herkömmlichen Scheinwerferlam- pen deutlich gesteigert. In den Figuren 1 und 2 sind entsprechende Vergleichswerte am Beispiel von Scheinwerfer¬ lampen des Typs Hl für eine herkömmliche HI-Lampe 1 und eine erfindungsgemäße HI-Lampe 2 zur Veranschaulichung dargestellt. Gemäß der Figur 1 erzeugt die herkömmliche HI-Lampe 1 bei einer Versorgungsspannung von 13,2 V einen Lichtstrom von 1475 Im, während die erfindungsgemäße HI- Lampe 2 bei derselben Versorgungsspannung einen Lichtstrom von 1715 Im generiert. Der Normmittelwert des Lichtstroms beträgt für HI-Lampen gemäß dem Stand der Technik 1550 Im. Bei der erfindungsgemäßen Hl- Scheinwerferlampe ist die Glühwendel so konstruiert, dass sie einen Lichtstrom generiert, dessen Wert deutlich größer ist als der gemäß der Norm ECE Regel 37 vorgegebene zulässige Maximalwert für den Lichtstrom von HI-Lampen von 1782,5 Im. Vorzugsweise ist bei der erfindungsgemäßen HI-Lampe die Glühwendel so konstruiert, dass sie einen Lichtstrom von mehr als 2000 Im generiert, der mittels des vorgenannten Lampengefäßbereiches mit verringerter Lichtdurchlässigkeit auf einen Wert von kleiner oder gleich dem zulässigen Maximalwert des Lichtstroms für HI- Lampen von 1782,5 Im, gemäß dem Beispiel in Figur 1 auf einen Wert von 1715 Im, reduziert wird. Das heißt, die erfindungsgemäße HI-Lampe 2 erzeugt einen gegenüber der herkömmlichen HI-Lampe 1 um 16 Prozent erhöhten Licht- ström. Die Figur 2 zeigt für diese Scheinwerferlampen einen Vergleich ihrer Leuchtdichte. Die herkömmliche HI- Lampe 1 besitzt eine Leuchtdichte von 2,3 • 10^ cd/m^ und die erfindungsgemäße HI-Lampe 2 weist eine Leuchtdichte von 3,7 • 10^ cd/m^ auf. Demzufolge ist die Leuchtdichte der erfindungsgemäßen HI-Lampe 2 um 61 Prozent höher als die der herkömmlichen HI-Lampe 1. Aufgrund ihrer höheren Leuchtdichte ist die erfindungsgemäße Scheinwerferlampe sowohl bei ihrer Verwendung in einem Abblendlichtscheinwerfer als auch in einem Fernlichtscheinwerfer einer her- kömmlichen Scheinwerferlampe überlegen, da sie in den wichtigen Entfernungspunkten bzw. Reichweitewerten vor dem Scheinwerfer für eine höhere Beleuchtungsstärke sorgt. Die Figur 3 zeigt als Beispiel einen Vergleich der Beleuchtungsstärke in den wichtigen Entfernungspunkten eines Abblendlichtscheinwerfers für den Rechtsverkehr ge¬ mäß der Vorschrift ECE/324 Regulation No. 112 bei Verwen- - A -The headlight lamp according to the invention has at least one incandescent filament enclosed by a lamp vessel which is constructed such that it generates a luminous flux during lamp operation whose value is greater than a predefined permissible maximum value for the luminous flux of the lamp. In addition, the lamp vessel comprises according to the invention a region of reduced Lichtdurchläs ¬ sigkeit on that reduces the outgoing light from the headlight lamp current to a value of less than or equal to the predetermined permissible maximum value for the luminous flux of the lamp during lamp operation. As a result, in the case of the headlight lamps according to the invention, the luminance is markedly increased compared to the conventional headlight lamps. In the figures 1 and 2 corresponding comparative values on the example of headlamp ¬ lamps of the type Hl for a conventional HI-lamp 1 and a HI-lamp 2 according to the invention are shown for illustrative purposes. According to FIG. 1, the conventional HI lamp 1 generates a luminous flux of 1475 Im at a supply voltage of 13.2 V, while the HI lamp 2 according to the invention generates a luminous flux of 1715 Im at the same supply voltage. The standard mean value of the luminous flux is 1550 Im for HI lamps according to the prior art. Headlight bulb, the filament is designed so that it generates a luminous flux whose value is significantly greater than the specified according to the standard ECE rule 37 maximum permissible value for the luminous flux of HI lamps of 1782.5 Im. Preferably, in the inventive HI lamp the filament is designed to generate a luminous flux of more than 2000 Im, which by means of the aforesaid lamp vessel area with reduced light transmittance, is less than or equal to the permissible maximum luminous flux value for HI lamps of 1782.5 Im, according to the example in Figure 1 is reduced to a value of 1715 Im. That is, the HI lamp 2 according to the invention produces a light flux which is 16 percent higher than that of the conventional HI lamp 1. Figure 2 shows a comparison of their luminance for these headlamps. The conventional HI lamp 1 has a luminance of 2.3 · 10 ^ cd / m ^ and the HI lamp 2 according to the invention has a luminance of 3.7 · 10 ^ cd / m ^. Accordingly, the luminance of the HI lamp 2 according to the invention is 61 percent higher than that of the conventional HI lamp 1. Due to its higher luminance, the headlamp according to the invention is superior to a conventional headlamp lamp both in its use in a low beam headlamp and in a high beam headlamp, because it provides in the important distance points or range values in front of the headlight for a higher illuminance. Figure 3 shows an example of a comparison of the illuminance at the important distances of a passing lamp for legal transactions ge ¬ the Standard ECE / 324 Regulation No. Mäss 112 with use - A -
dung einer herkömmlichen HI-Lampe und einer erfindungsgemäßen HI-Lampe als Lichtquelle in dem Abblendlichtscheinwerfer eines Kraftfahrzeugs. Die Figur 4 zeigt denselben Vergleich bei Verwendung derselben Lampen als Lichtquelle in dem Abblendlichtscheinwerfer eines anderen Kraftfahrzeugs. Aus den Vergleichswerten der Figuren 3 und 4 ist erkennbar, dass die erfindungsgemäße Scheinwerferlampe 2 in den Abblendlichtscheinwerfern beider Fahrzeugtypen gegenüber der herkömmlichen Scheinwerferlampe 1 eine deut- liehe Erhöhung der Beleuchtungsstärke in den wichtigen Entfernungspunkten 75R, 5OR, 50V, 25L, 25R und Zone IV gemäß ECE/324 Regulation No. 112 auf einem Schirm in 25 m Entfernung vor dem Scheinwerfer gewährleistet. Die Figur 5 zeigt einen Vergleich der Beleuchtungsstärke in der op- tischen Achse H/V und im Maximum der Beleuchtungsstärke bei Verwendung einer herkömmlichen HI-Lampe 1 und einer erfindungsgemäßen HI-Lampe 2 im Fernlichtscheinwerfer eines Kraftfahrzeugs. Figur 6 zeigt denselben Vergleich für dieselben Lampen im Fernlichtscheinwerfer eines anderen Kraftfahrzeugs. Aus den Vergleichswerten in den Figuren 5 und 6 ist erkennbar, dass die erfindungsgemäße HI-Lampe 2 im Vergleich zur herkömmlichen HI-Lampe 1 in dem Fernlichtscheinwerfer beider Kraftfahrzeuge eine deutliche Erhöhung der Beleuchtungsstärke sowohl in der optischen Achse H/V als auch im Maximum der Beleuchtungsstärke er¬ möglicht .Making a conventional HI lamp and a HI lamp according to the invention as a light source in the low beam headlight of a motor vehicle. FIG. 4 shows the same comparison when the same lamps are used as the light source in the low-beam headlamp of another motor vehicle. It can be seen from the comparative values of FIGS. 3 and 4 that the headlamp 2 according to the invention in the dipped-beam headlamps of both vehicle types has a significant increase in illuminance in the important distance points 75R, 5OR, 50V, 25L, 25R and zone IV in comparison to the conventional headlamp 1 ECE / 324 Regulation no. 112 on a screen 25 m away from the headlights. FIG. 5 shows a comparison of the illuminance in the optical axis H / V and in the maximum of the illuminance when using a conventional HI lamp 1 and a HI lamp 2 according to the invention in the high beam headlight of a motor vehicle. Figure 6 shows the same comparison for the same lamps in the high beam headlamp of another motor vehicle. From the comparison values in FIGS. 5 and 6, it can be seen that the HI lamp 2 according to the invention, in comparison to the conventional HI lamp 1 in the high beam headlamp of both motor vehicles, significantly increases the illuminance both in the optical axis H / V and in the maximum of FIG illuminance he ¬ made possible.
Die Erfindung kann auch auf andere Scheinwerferlampen, die üblicherweise keine lichtundurchlässige Kuppe aufwei¬ sen, wie zum Beispiel auf H2- und H3-Lampen angewandt werden. Für H2-Lampen beträgt der zulässige Maximalwert für den Lichtstrom gemäß ECE Regel 37 bei einer Versor- gungsspannung von 13,2 Volt beispielsweise 2070 Im, während der zulässige Maximalwert für den Lichtstrom von H3- Lampen gemäß ECE Regel 37 bei einer Versorgungsspannung von 13,2 V 1667,5 Im beträgt.The invention can also be applied to other headlamps, which usually have no opaque dome aufwei ¬ sen, such as applied to H2 and H3 lamps. For H2 lamps the permissible maximum value for the luminous flux according to ECE Rule 37 is at a supply voltage of 13.2 volts, for example 2070 lm, while the permissible maximum value for the luminous flux of H3 lamps according to ECE regulation 37 at a supply voltage of 13.2 V is 1667.5 Im.
Vorzugsweise ist die mindestens eine Glühwendel der er¬ findungsgemäßen Scheinwerferlampe derart konstruiert, dass sie während des Lampenbetriebs einen Lichtstrom ge¬ neriert, der um mindestens 10 Prozent oberhalb des zuläs¬ sigen Maximalwerts für den Lichtstrom der Lampe liegt, wobei aber der Bereich mit verringerter Lichtdurchlässigkeit des Lampengefäßes dazu führt, dass der von der er¬ findungsgemäßen Lampe ausgehende Lichtstrom auf einen Wert kleiner oder gleich dem vorgenannten zulässigen Maximalwert für den Lichtstrom der Lampe reduziert ist und somit die Vorschrift gemäß ECE Regel 37 eingehalten wird.Preferably, the at least one incandescent filament which it ¬ inventive headlight lamp is constructed such that they neriert a luminous flux ge ¬ during lamp operation which is at least 10 percent sigen above the zuläs ¬ maximum value is the luminous flux of the lamp, but with the area of reduced light transmittance of the lamp vessel thereto, resulting in the smaller of which he outgoing ¬ inventive lamp luminous flux to a value equal to or above the permissible maximum value for the luminous flux of the lamp is reduced, and so the requirement in accordance with ECE regulation is maintained 37th
Gemäß dem bevorzugten Ausführungsbeispiel der Erfindung ist der Bereich des Lampengefäßes mit verringerter Licht¬ durchlässigkeit an dem vom Lampensockel abgewandten Ende des Lampengefäßes angeordnet, das vorzugsweise als Kuppe ausgebildet ist. Vorzugsweise erstreckt sich der Bereich des Lampengefäßes mit verringerter Lichtdurchlässigkeit nicht nur über die Kuppe des Lampengefäßes, sondern zu¬ sätzlich auch über einen Teil eines an die Kuppe angrenzenden axialsymmetrischen Abschnitts des Lampengefäßes.According to the preferred embodiment of the invention, the range of the lamp vessel with reduced permeability ¬ is arranged at the end remote from the lamp base end of the lamp vessel, which is preferably designed as a tip. Preferably, the area of the lamp vessel with reduced light transmission extends not only over the top of the lamp vessel, but also to ¬ part of an adjacent to the dome axisymmetric portion of the lamp vessel.
Der Bereich des Lampengefäßes mit verringerter Licht¬ durchlässigkeit ist vorteilhafterweise als lichtundurch¬ lässige Beschichtung auf der Oberfläche dieses Lampenge- fäßbereiches ausgebildet, da diese Beschichtung mit ver¬ gleichsweise einfachen Mitteln herstellbar ist. Für diese Beschichtung kann beispielsweise Carbonyleisen verwendet werden, das von der Kuppenbeschichtung bei H4- und H7- Lampen bekannt ist.The portion of the lamp vessel with reduced permeability ¬ is advantageously designed as lichtundurch ¬ fäßbereiches permeable coating on the surface of Lampenge-, since this coating is produced with ver ¬ tively simple means. For this Coating can be used, for example, carbonyl iron, which is known from the top coating in H4 and H7 lamps.
Gemäß dem bevorzugten Ausführungsbeispiel der Erfindung beträgt der Abstand des Bereiches des Lampengefäßes mit verringerter Lichtdurchlässigkeit von einer Referenzebene des Lampensockels, gegenüber der die Lage der mindestens einen Glühwendel justiert ist, 31,50 Millimeter ± 0,30 Millimeter.According to the preferred embodiment of the invention, the distance of the region of the lamp vessel with reduced light transmission from a reference plane of the lamp cap, with respect to which the position of the at least one filament is adjusted, is 31.50 millimeters ± 0.30 millimeters.
III. Beschreibung des bevorzugten AusführungsbeispielsIII. Description of the Preferred Embodiment
Nachstehend wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:The invention will be explained in more detail below with reference to a preferred embodiment. Show it:
Figur 1 Einen Vergleich des Lichtstroms einer erfindungs¬ gemäßen HI-Lampe mit einer herkömmlichen HI-Lampe gemäß dem Stand der TechnikFigure 1 shows a comparison of the luminous flux of a fiction, modern ¬ HI-lamp with a conventional HI-lamp according to the prior art
Figur 2 Einen Vergleich der Leuchtdichte einer erfindungsgemäßen HI-Lampe mit einer herkömmlichen HI- Lampe gemäß dem Stand der TechnikFigure 2 A comparison of the luminance of a HI lamp according to the invention with a conventional HI lamp according to the prior art
Figur 3 Einen Vergleich der Beleuchtungsstärke bei Ver- wendung einer erfindungsgemäßen HI-Lampe und einer herkömmlichen HI-Lampe gemäß dem Stand der Technik als Lichtquelle im Abblendlichtscheinwerfer eines KraftfahrzeugsFIG. 3 shows a comparison of the illuminance when using a HI lamp according to the invention and a conventional HI lamp according to the prior art as a light source in the low-beam headlamp of a motor vehicle
Figur 4 Einen Vergleich der Beleuchtungsstärke bei Ver- wendung einer erfindungsgemäßen HI-Lampe und einer herkömmlichen HI-Lampe gemäß dem Stand der Technik als Lichtquelle im Abblendlichtscheinwerfer eines anderen KraftfahrzeugsFIG. 4 shows a comparison of the illuminance when using a HI lamp according to the invention and a conventional HI lamp according to the prior art Technique as a light source in the low beam headlight of another motor vehicle
Figur 5 Einen Vergleich der Beleuchtungsstärke bei Ver¬ wendung einer erfindungsgemäßen HI-Lampe und ei- ner herkömmlichen HI-Lampe gemäß dem Stand der Technik als Lichtquelle im Fernlichtscheinwerfer eines Kraftfahrzeugs5 shows a comparison of the illuminance at Ver ¬ application of a HI-lamp according to the invention and a conventional HI-lamp according to the prior art as the light source in the high-beam headlights of a motor vehicle
Figur 6 Einen Vergleich der Beleuchtungsstärke bei Ver¬ wendung einer erfindungsgemäßen HI-Lampe und ei- ner herkömmlichen HI-Lampe gemäß dem Stand der Technik als Lichtquelle im Fernlichtscheinwerfer eines anderen Kraftfahrzeugs6 shows a comparison of the illuminance at Ver ¬ application of a HI-lamp according to the invention and a conventional HI-lamp according to the prior art as the light source in the beam headlight of another motor vehicle
Figur 7 Eine Seitenansicht einer erfindungsgemäßen Scheinwerferlampe in schematischer DarstellungFigure 7 is a side view of a headlight lamp according to the invention in a schematic representation
Figur 8 Eine Seitenansicht der Scheinwerferlampe aus Fi¬ gur 7 in einer um 90 Grad um ihre Längsachse ge¬ drehten Seitenansicht in schematischer DarstellungFigure 8 is a side view of the headlight lamp Fi gur ¬ 7 turned in a 90 degrees about its longitudinal axis ge ¬ side view schematic representation of
In den Figuren 7 und 8 sind zwei unterschiedliche Seiten- ansichten einer erfindungsgemäßen Scheinwerferlampe schematisch dargestellt. Bei dieser Scheinwerferlampe handelt es sich um eine Halogenglühlampe des Typs Hl, die eine Nennspannung von 12 Volt und eine elektrische Leistungs¬ aufnahme von 55 Watt besitzt. Diese Scheinwerferlampe be- sitzt ein gläsernes Lampengefäß 10 mit einem abgedichte¬ ten Ende 101, das in einer metallischen Sockelhülse des Lampensockels 12 fixiert ist. Der Lampensockel 12 ist mit einem Sockelflansch 13 ausgestattet, bezüglich dem die räumliche Lage der vom Lampengefäß 10 umschlossenen Glüh¬ wendel 14 justiert ist. Die Sockelflanschebene definiert eine Referenzebene für die Justage der Glühwendel 14. Das Lampengefäß 10 weist eine seinem abgedichteten Ende 101 gegenüberliegende Kuppe 103 auf. Der Abschnitt 102 des Lampengefäßes 10 zwischen dem abgedichteten Ende 101 und der Kuppe 13, der die Glühwendel 14 umgibt, ist axialsym¬ metrisch, insbesondere kreiszylindrisch ausgebildet. Die Kuppe 103 und ein Teil 104 des sich daran anschließenden kreiszylindrischen Lampengefäßabschnitts 102 sind auf ih¬ rer äußeren Oberfläche mit einer lichtundurchlässigen Be- schichtung 105 aus zum Beispiel Carbonyleisen versehen. Der Abstand der Beschichtung 105 zu dem Sockelflansch 13 des Lampensockels 12 beträgt 31,50 mm ± 0,30 mm. Die Glühwendel 14 ist einfach gewendelt, besitzt 15 Windun¬ gen, einen Kerndurchmesser von 652,3 Mikrometer, einen Kernfaktor von 3,922, eine Steigung von 288,9 Mikrometer, einen Steigungsfaktor von 1,737, einen Kaltwiderstand von 102,29 Milliohm und eine wirksame Drahtlänge von 39,84 mm. Die wirksame Drahtlänge bezeichnet die Länge des Drahtes des gewendelten Teils der Glühwendel 14. Ge¬ genüber der herkömmlichen HI-Lampe weist bei der HI-Lampe gemäß dem bevorzugten Ausführungsbeispiel der Erfindung die Glühwendel 14 einen um ca. 17,4 Prozent verringerten Kaltwiderstand auf. Die Glühwendel 14 generiert im Be¬ trieb der Lampe mit einer Versorgungsspannung von 13,2 V einen Lichtstrom von 2012 Im, der mittels der Beschichtung 105 auf einen Wert von 1715 Im reduziert wird.FIGS. 7 and 8 show diagrammatically two different side views of a headlight lamp according to the invention. This headlamp is a halogen incandescent lamp type Hl, which has a nominal voltage of 12 volts and an electrical power consumption ¬ of 55 watts. This headlight lamp loading sits a glass lamp vessel 10 with a abgedichte ¬ th end 101 which is fixed in a metallic base sleeve of the lamp cap 12th The lamp cap 12 is provided with a base flange 13 with respect to which spatial position of the lamp vessel 10 enclosed Glüh ¬ helix 14 is adjusted. The base flanges plane defines a reference plane for the adjustment of the filament 14. The lamp vessel 10 has a tip 103 opposite its sealed end 101. The portion 102 of the lamp vessel 10 between the sealed end 101 and the tip 13 surrounding the filament 14, is axialsym ¬ metric, designed, in particular circular cylindrical. The tip 103 and a portion 104 of the adjoining circular-cylindrical lamp vessel portion 102 are on ih ¬ rer outer surface with an opaque coating-105 provided, for example, from carbonyl iron. The distance of the coating 105 to the base flange 13 of the lamp cap 12 is 31.50 mm ± 0.30 mm. The filament 14 is easily coiled, has 15 Windun ¬ gen a core diameter of 652.3 microns, a core factor of 3.922, a slope of 288.9 microns, a pitch factor of 1,737, a cold resistance of 102.29 milliohms and an effective length of wire of 39.84 mm. The effective wire length designates the length of the wire of the coiled part of the incandescent filament. Ge ¬ compared to the conventional HI lamp has in the HI lamp according to the preferred embodiment of the invention, the incandescent filament 14 by about 17.4 percent reduced cold resistance. The filament 14 generates the Be ¬ the lamp operating with a supply voltage of 13.2 V a luminous flux of 2012 Im by means of the coating 105 is reduced to a value of 1715 Im.
Die Erfindung beschränkt sich nicht auf das oben näher erläuterte Ausführungsbeispiel der Erfindung, sondern kann auch auf andere Scheinwerferlampen, beispielsweise H2- und H3-Lampen, angewandt werden. Ferner kann die Erfindung auch auf Zwei-Wendel-Lampen, beispielsweise auf H15-Lampen angewandt werden. H15-Lampen besitzen eine Glühwendel zur Erzeugung des Tagfahrlichts und eine wei- tere Glühwendel zur Erzeugung des Fernlichts. Um die Leuchtdichte für die Fernlichtanwendung zu erhöhen, kann die Fernlichtwendel derart konstruiert sein, dass sie während des Betriebs einen Lichtstrom generiert, dessen Wert größer ist als ein vorgegebener zulässiger Maximal- wert für den Lichtstrom der H15-Lampe, und beispielsweise die Kuppe des Lampengefäßes eine Licht undurchlässige Be- schichtung aufweist, mit deren Hilfe der von der Fernlichtglühwendel ausgehende Lichtstrom auf einen Wert von kleiner oder gleich dem vorgegebenen zulässigen Maximal- wert reduziert wird.The invention is not limited to the above-explained embodiment of the invention, but can also be applied to other headlamps, for example H2 and H3 lamps are used. Furthermore, the invention can also be applied to two-filament lamps, for example to H15 lamps. H15 lamps have an incandescent filament for generating the daytime running light and another filament for generating the high beam. To increase the luminance for the high beam application, the high beam filament may be designed to generate a luminous flux during operation greater than a predetermined allowable maximum value for the luminous flux of the H15 lamp and, for example, the top of the lamp vessel has a light-impermeable coating, by means of which the luminous flux emanating from the high-beam incandescent filament is reduced to a value of less than or equal to the predetermined permissible maximum value.
Außerdem kann die Erfindung auch auf Scheinwerferlampen angewandt werden, die für eine andere Bordnetznennspannung als 12 V, beispielsweise für eine Bordnetznennspannung von 24 V, ausgelegt sind. In addition, the invention can also be applied to headlight lamps, which are designed for a different Bordnetznennspannung than 12 V, for example for a Bordnetznennspannung of 24V.

Claims

Patentansprüche claims
1. Scheinwerferlampe mit mindestens einer Glühwendel (14), die von einem Lampengefäß (10) umschlossen ist, dadurch gekennzeichnet, dass die mindestens eine Glühwendel (14) derart konstruiert ist, dass sie während des Lampenbetriebs einen Lichtstrom gene¬ riert, dessen Wert größer ist als ein vorgegebener zulässiger Maximalwert für den Lichtstrom der Lampe, und das Lampengefäß (10) einen Bereich (103, 104) verringerter Lichtdurchlässigkeit aufweist, mit dessen Hilfe der während des Lampenbetriebs von der Scheinwerferlampe ausgehende Lichtstrom auf ei¬ nen Wert von kleiner oder gleich dem vorgegebenen zulässigen Maximalwert reduziert wird.1. Headlight lamp having at least one incandescent filament (14), which is surrounded by a lamp vessel (10), characterized in that a filament (14) is constructed at least in that, they are fo- a luminous flux generated ¬ during lamp operation, whose value is greater than a predetermined permissible maximum value for the luminous flux of the lamp, and the lamp vessel (10) having a portion (103, 104) of reduced light transmittance, by means of which the outgoing during lamp operation from the headlight bulb luminous flux on ei ¬ NEN value of less than or equal is reduced to the predetermined permissible maximum value.
2. Scheinwerferlampe nach Anspruch 1, dadurch gekennzeichnet, dass die Scheinwerferlampe einen Lampen¬ sockel (12) aufweist und der Bereich (103, 104) des Lampengefäßes (10) mit verringerter Lichtdurchläs¬ sigkeit an dem vom Lampensockel (12) abgewandten Ende des Lampengefäßes (10) angeordnet ist.2. Headlight lamp according to claim 1, characterized in that the headlight lamp has a lamp base ¬ (12) and the region (103, 104) of the lamp vessel (10) with reduced Lichtdurchläs ¬ sigkeit on the lamp base (12) facing away from the end of the lamp vessel (10) is arranged.
3. Scheinwerferlampe nach Anspruch 2, dadurch gekennzeichnet, dass der Bereich des Lampengefäßes mit verringerter Lichtdurchlässigkeit die dem Lampenso¬ ckel (12) gegenüber liegende Kuppe (103) des Lam- pengefäßes (10) bildet.That the area of the lamp vessel (12) 3. Headlight lamp according to Claim 2, characterized with a reduced light transmittance of the lamp base opposite tip (103) of the lamp vessel (10).
4. Scheinwerferlampe nach Anspruch 3, dadurch gekennzeichnet, dass der Bereich des Lampengefäßes (10) mit verringerter Lichtdurchlässigkeit sich zusätz¬ lich auf einen an die Kuppe (103) angrenzenden Teil (104) eines axialsymmetrischen Abschnitt (102) des Lampengefäßes (10) erstreckt.4. Headlight lamp according to claim 3, characterized in that the region of the lamp vessel (10) is zusätz ¬ an axially symmetric section (102) with reduced light transmissivity Lich to a adjacent to the tip (103) part (104) of the lamp vessel (10).
5. Scheinwerferlampe nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Lampengefäß (10) ein im Lampensockel (12) fixiertes abgedichtetes Ende (101) und eine diesem abgedich¬ teten Ende (101) gegenüberliegende Kuppe (103) so- wie einen zwischen der Kuppe (103) und dem abge¬ dichteten Ende (101) angeordneten axialsymmetrischen Lampengefäßabschnitt (102) aufweist, wobei der Bereich des Lampengefäßes mit verringerter Lichtdurchlässigkeit sich über die Kuppe (103) und über einen daran angrenzenden Teil (104) des axialsymmetrischen Lampengefäßabschnitts (102) er¬ streckt .5. Headlight lamp according to one or more of claims 1 to 4, characterized in that the lamp vessel (10) in the lamp base (12) fixed sealed end (101) and this abgedich ¬ ended end (101) opposite tip (103) so - has such a compacted between the dome (103) and the abge ¬ end (101) arranged axially symmetrical lamp vessel section (102), wherein the region of the lamp vessel with reduced light transmission over the dome (103) and an adjacent part (104) of the axisymmetric lamp vessel section (102) it stretches ¬ .
6. Scheinwerferlampe nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Bereich (103, 104) des Lampengefäßes (10) mit verringerter Lichtdurchlässigkeit von einer lichtundurchlässigen Beschich- tung (105) auf der Oberfläche dieses Bereiches (103, 104) des Lampengefäßes (10) gebildet ist.6. Headlamp according to one of claims 1 to 5, characterized in that the region (103, 104) of the lamp vessel (10) with reduced light transmittance of an opaque coating (105) on the surface of this area (103, 104) of the Lamp vessel (10) is formed.
7. Scheinwerferlampe nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass der Abstand des Berei¬ ches (103, 104)) des Lampengefäßes (10) mit verrin¬ gerter Lichtdurchlässigkeit von einer Referenzebene des Lampensockels (12), gegenüber der die Lage der mindestens einen Glühwendel (14) justiert ist, ei- nen Wert im Bereich von 31,50 Millimeter ± 0,30 Millimeter besitzt.7. Headlight lamp according to one of claims 2 to 6, characterized in that the distance of the preparation ¬ ches (103, 104)) of the lamp vessel (10) with verrin ¬ gerter light transmission from a reference plane of the lamp cap (12), relative to the position the at least one filament (14) is adjusted, an has a value in the range of 31.50 millimeters ± 0.30 millimeters.
8. Scheinwerferlampe nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die mindestens eine Glühwendel (14) derart dimensio¬ niert ist, dass sie während des Betriebs einen Lichtstrom generiert, dessen Wert um mindestens 10 Prozent oberhalb des vorgegebenen zulässigen Maxi¬ malwerts liegt. 8. Headlight lamp according to one or more of claims 1 to 7, characterized in that the dimensio ¬ is defined at least one incandescent filament (14) such that it generates a luminous flux during the operation, the value of at least 10 percent above the predetermined allowable Maxi ¬ value is.
EP06807018A 2005-10-07 2006-10-05 Headlight lamp of the type H1 Not-in-force EP1932169B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005048444A DE102005048444A1 (en) 2005-10-07 2005-10-07 headlight bulb
PCT/EP2006/067115 WO2007042464A1 (en) 2005-10-07 2006-10-05 Headlight lamp

Publications (2)

Publication Number Publication Date
EP1932169A1 true EP1932169A1 (en) 2008-06-18
EP1932169B1 EP1932169B1 (en) 2011-04-27

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US (1) US8093792B2 (en)
EP (1) EP1932169B1 (en)
JP (1) JP5145232B2 (en)
KR (1) KR101282234B1 (en)
CN (1) CN101278373B (en)
AT (1) ATE507577T1 (en)
CA (1) CA2624860A1 (en)
DE (2) DE102005048444A1 (en)
ES (1) ES2364080T3 (en)
WO (1) WO2007042464A1 (en)

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DE102007049568A1 (en) 2007-10-16 2009-04-23 Osram Gesellschaft mit beschränkter Haftung Lamp e.g. halogen lamp, for use as low beam headlamp of vehicle, has cylindrical shaped lamp tube whose section includes upper surface that is roughened with laser, acid, base or sandblast, before applying coating on section
DE102007055172A1 (en) 2007-11-19 2009-05-20 Osram Gesellschaft mit beschränkter Haftung Lamp e.g. halogen one vehicle lamp, has receptacle fixed to socket and exhibiting section with reduced transparency, where section is designed as matting which are formed by radiation or mechanical or chemical treatment of receptacle
DE102008056174A1 (en) 2008-11-06 2010-05-12 Osram Gesellschaft mit beschränkter Haftung Halogen bulb for vehicle headlights and vehicle headlights
DE102009037577A1 (en) * 2009-08-14 2011-02-17 Osram Gesellschaft mit beschränkter Haftung Halogen bulb for vehicle headlights
DE102011004290A1 (en) 2011-02-17 2012-08-23 Osram Ag Halogen bulb for vehicle headlights and vehicle headlights

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US8093792B2 (en) 2012-01-10
WO2007042464A1 (en) 2007-04-19
ATE507577T1 (en) 2011-05-15
CN101278373A (en) 2008-10-01
CA2624860A1 (en) 2007-04-19
EP1932169B1 (en) 2011-04-27
KR101282234B1 (en) 2013-07-10
KR20080066779A (en) 2008-07-16
JP5145232B2 (en) 2013-02-13
US20090066213A1 (en) 2009-03-12
JP2009512125A (en) 2009-03-19
ES2364080T3 (en) 2011-08-24
DE502006009408D1 (en) 2011-06-09
CN101278373B (en) 2011-09-07
DE102005048444A1 (en) 2007-04-12

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