EP1892461A1 - Headlamp for a vehicle - Google Patents

Headlamp for a vehicle Download PDF

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Publication number
EP1892461A1
EP1892461A1 EP06119535A EP06119535A EP1892461A1 EP 1892461 A1 EP1892461 A1 EP 1892461A1 EP 06119535 A EP06119535 A EP 06119535A EP 06119535 A EP06119535 A EP 06119535A EP 1892461 A1 EP1892461 A1 EP 1892461A1
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EP
European Patent Office
Prior art keywords
reflector
reflection surface
daytime running
filament
headlamp according
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
EP06119535A
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German (de)
French (fr)
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EP1892461B1 (en
Inventor
Wolfgang Peitz
Michael Burg
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Hella GmbH and Co KGaA
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Hella KGaA Huek and Co
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Application filed by Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Priority to EP06119535A priority Critical patent/EP1892461B1/en
Publication of EP1892461A1 publication Critical patent/EP1892461A1/en
Application granted granted Critical
Publication of EP1892461B1 publication Critical patent/EP1892461B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
    • F21S41/164—Incandescent light sources, e.g. filament or halogen lamps having two or more filaments

Definitions

  • the invention relates to a headlamp for vehicles with a cup-shaped reflector, with a reflector associated with the bulb whose lamp bulb in the light exit direction of the reflector and having a high beam and a daytime running filament, wherein the daytime running filament is disposed between the reflector and the high beam and the high beam filament a Aperture is assigned, shaded by the high beam at a reflector portion which is smaller than half the reflection surface of the reflector.
  • the object of the invention is to make the headlamp described in the preamble of claim 1 in such a way that no light rays are produced by the aperture associated with the high-beam filament, which illuminate the apron of the vehicle disturbing or stained after a further reflection on the reflector.
  • This object is achieved according to the invention in that the diaphragm is arranged above the high beam filament is, wherein the shadable by the aperture reflector portion is disposed in the upper region of the reflector.
  • the light rays of the high-beam filament reflected on the inside of the diaphragm are directed downwards and then reflect upward on the reflector. Upwardly directed light beams are not involved in the illumination of the road, and thus no disturbing light spots in the apron of the vehicle can occur.
  • the shadable by the aperture upper reflector portion has a designed for daytime running reflective surface and the reflector below the designed for daytime running reflection surface designed for high beam lower reflection surface
  • the upper reflection surface for daytime running lights 25th % of the total reflection surface of the reflector or the lamp seen against the light exit direction of the reflector and starting from the center of a vertical middle line has an offset upwards of at least 5%, preferably 8 to 12% of the reflector height or the entire lamp envelope against the light exit direction of the reflector, is arranged in the upper half of the reflector.
  • the reflector can be designed so that as much light power for the high beam, but still enough for the daytime running lights available stands.
  • the upper edge of the reflector is arranged offset from its lower edge to the rear of the reflector to the rear. This is only possible by the off-center offset of the bulb upwards and the shape of the reflector, this can be adjusted with its front edge of the inclination of the lens of the headlamp, which extends obliquely backwards to the rear.
  • the reflector is optically advantageous designed when switched on daytime running the lower reflector portion an arcuate partial light distribution, the arc is opened upwards, and the upper reflector portion generates a partial light distribution, which extends above this and the interior of the arc-shaped partial light distribution fills.
  • the upper reflection surface for daytime running light has a daytime running light scattering optics surface which generates a partial upper light distribution, which together with a lower partial light distribution, which generates the lower reflector portion for high beam, a total light distribution for daytime running lights, the light of the daytime running light at the reflection surface at least between 15 ° and 25 °, preferably between 18 ° to 22 ° scatters.
  • the reflector is torsionally rigid and appealing in appearance when the daytime running surface upper reflecting surface comprises arcuate broad strip portions formed by optical elements and the lower reflecting surface for high beam comprises optical broad strip portions formed by optical elements, the number of adjacent ends being arcuate and vertical extending wide strip portions is the same size.
  • the headlight for vehicles according to Figures 1 and 2 has a cup-shaped housing (not shown) and a front cover of the housing covering translucent cover 16, which is at least partially free of optical elements. Thus, one can see in through the lens 16 through into the interior of the headlight into it.
  • the cover plate 16 is upward to the rear inclined, ie the upper edge of the cover plate 16 is set back relative to the lower edge.
  • a cup-shaped reflector 1 is arranged.
  • the reflector 1 is made of plastic and has at the rear a receiving opening 17 for an incandescent lamp, of which a daytime running light 4, a high-beam filament 3 and a high-beam filament 3 associated trough-shaped aperture 5 is shown.
  • the daytime running filament 4 is arranged between the receiving opening 17 and the high-beam filament 3, wherein the high-beam filament 3 is located on an axis 18, which is the longitudinal axis of the incandescent lamp or the optical axis of the reflector 1, and the daytime running filament 4 is slightly below the axis 18.
  • the trough-shaped aperture 5 is arranged above the high-beam filament 3 and symmetrically to a vertical central line 9.
  • the diaphragm 5 shields an upper reflection surface 7 of an upper reflector section 6.
  • the shielded by the aperture 5 reflection surface 7 is smaller than the reflection surface, which lies above a horizontal surface in which the axis 18 extends.
  • the high beam beams 19 are directed, which collects the lower reflection surface 8 to a reaching far into the light beam.
  • the high beam produces a high beam distribution.
  • the high beam beams 19 are almost parallel except for small angular deviations.
  • the incident on the lower reflection surface 8 light rays 21 of the daytime running light spiral 4 generate because of their defocus to the lower reflection surface 8 an arcuately extending lower partial light distribution 15, wherein the sheet is open upwards.
  • the upper reflection surface 7 is optimally designed for daytime running lights and the light rays impinging on the upper reflection surface 7 generate a partial light distribution 12, which is arranged substantially above the lower partial light distribution 15.
  • the upper partial light distribution 12 fills in a region of the interior of the arc of the lower partial light distribution 12 and has a bar which extends above the ends of the arc of the lower partial light distribution 15.
  • the upper reflection surface 7 of the reflector has a plurality of arcuate optical strip sections 13, whose course is adapted to the course of the outer edge of the reflector 1 and / or surrounding the receiving opening 17 concentrically.
  • the arcuate strip sections 13 are each composed of juxtaposed optical elements.
  • the lower reflection surface 7 has a plurality of vertically extending optical strip sections 14, which approach the arcuate strip sections 13.
  • Each end of the arcuate strip sections 13 is assigned at least one vertical strip section 13.
  • the entire reflection surface of the reflector 1 appears like a torbogen and thus there is a harmonious appearance.
  • a thin-walled reflector made of plastic may have sufficient rigidity and heat resistance.
  • the receiving opening 17 is arranged off-center of the reflector 1.
  • the receiving opening 17 is seen against the light exit direction of the reflector 1 offset upwards offset (10).
  • the outer reflector dimensions are between 90 and 110 mm and the offset 10 is about 8 to 12% of the outer reflector dimension.
  • the offset 10 the entire reflection surface of the reflector 1 can be designed so that the front edge of the reflector 1 as well as the cover plate 16 extends obliquely backwards towards the top. In this case, the front edge of the reflector 1 extend approximately at an equidistant distance from the cover plate 16.
  • the receiving opening 17 is arranged centrally in the reflector 1.

Abstract

The headlight has a filament lamp attached to a reflector (1), and a lamp piston pointing in a light emission direction of the reflector. The lamp has a driving light coil (3) and a daytime driving light coil (4) that is arranged between the reflector and the driving light coil, where a screen (5) is attached to the driving light coil. A reflector section, which is smaller than half reflection surface of the reflector, is shadowed by the screen. The screen is arranged above the driving light coilaand the reflector section is arranged in an upper area of the reflector.

Description

Die Erfindung betrifft einen Scheinwerfer für Fahrzeuge mit einem schalenförmigen Reflektor, mit einer dem Reflektor zugeordneten Glühlampe, deren Lampenkolben in Lichtaustrittsrichtung des Reflektors weist und die eine Fernlichtwendel und eine Tagfahrlichtwendel aufweist, wobei die Tagfahrlichtwendel zwischen dem Reflektor und der Fernlichtwendel angeordnet ist und der Fernlichtwendel eine Blende zugeordnet ist, durch die bei Fernlicht ein Reflektorabschnitt abschattbar ist, der kleiner als die halbe Reflexionsfläche des Reflektors ist.The invention relates to a headlamp for vehicles with a cup-shaped reflector, with a reflector associated with the bulb whose lamp bulb in the light exit direction of the reflector and having a high beam and a daytime running filament, wherein the daytime running filament is disposed between the reflector and the high beam and the high beam filament a Aperture is assigned, shaded by the high beam at a reflector portion which is smaller than half the reflection surface of the reflector.

Aus dem Dokument der Economic und Social Council der United Nations ECE/TRANS/WP.29/GRE2006/35 vom 21 Juli 2006 (zu finden unter http://www.unece.org/trans/doc/2006/wp29gre/ECE-TRANS-WP29-GRE-2006-35e.doc) ist eine Glühlampe mit der Bezeichnung H15 für einen Scheinwerfer für Fahrzeuge bekannt. Die Glühlampe weist einen Tagfahrlichtwendel und eine Fernlichtwendel auf. Der Fernlichtwendel ist eine Blende zugeordnet, die zur Abschattung eines Reflektorabschnitts eines Reflektors dient, wobei die Tagfahrlichtwendel zur Ausleuchtung des gesamten Reflektors ausgelegt ist. Bei bekannten Zweifaden-Glühlampen ist eine Blende unterhalb einer Glühwendel angeordnet. Würde bei der H15-Glühlampe die Blende wie sonst üblich unterhalb einer Wendel angeordnet, würden Lichtstrahlen der Fernlichtwendel von der Innenseite der Blende nach oben reflektiert und dann anschließend am Reflektor nach unten reflektiert. Dadurch kann eine als störend empfundene fleckige Ausleuchtung im Vorfeld des Fahrzeuges entstehen.From the document of the Economic and Social Council of the United Nations ECE / TRANS / WP.29 / GRE2006 / 35 of 21 July 2006 (available at http://www.unece.org/trans/doc/2006/wp29gre/ECE- TRANS-WP29-GRE-2006-35e.doc) is an incandescent lamp designated H15 for a headlamp for vehicles known. The light bulb has a daytime running filament and a high beam filament. The high-beam filament is associated with a diaphragm which serves to shadow a reflector portion of a reflector, wherein the daytime running filament is designed to illuminate the entire reflector. In known two-filament incandescent lamps, a diaphragm is arranged below a filament. If the aperture were arranged below a helix in the H15 bulb as usual, light rays from the high-beam coil would be reflected upwards by the inside of the aperture and then reflected downwards at the reflector. As a result, a perceived as annoying spotty illumination in advance of the vehicle arise.

Aufgabe der Erfindung ist es, den im Oberbegriff des Anspruchs 1 beschriebenen Scheinwerfer derart zu gestalten, dass durch die der Fernlichtwendel zugeordnete Blende keine Lichtstrahlen entstehen, die nach einen weiteren Reflexion am Reflektor das Vorfeld des Fahrzeugs störend bzw. fleckig ausleuchten. Diese Aufgabe wird nach der Erfindung dadurch gelöst, dass die Blende oberhalb der Fernlichtwendel angeordnet ist, wobei der durch die Blende abschattbare Reflektorabschnitt im oberen Bereich des Reflektors angeordnet ist. Dadurch sind die an der Innenseite der Blende reflektierten Lichtstrahlen der Fernlichtwendel nach unten gerichtet und reflektieren danach am Reflektor nach oben. Nach oben gerichtete Lichtstrahlen sind an der Fahrbahnausleuchtung nicht beteiligt und es können somit keine als störend empfundene Lichtflecken im Vorfeld des Fahrzeugs.The object of the invention is to make the headlamp described in the preamble of claim 1 in such a way that no light rays are produced by the aperture associated with the high-beam filament, which illuminate the apron of the vehicle disturbing or stained after a further reflection on the reflector. This object is achieved according to the invention in that the diaphragm is arranged above the high beam filament is, wherein the shadable by the aperture reflector portion is disposed in the upper region of the reflector. As a result, the light rays of the high-beam filament reflected on the inside of the diaphragm are directed downwards and then reflect upward on the reflector. Upwardly directed light beams are not involved in the illumination of the road, and thus no disturbing light spots in the apron of the vehicle can occur.

In den meisten Scheinwerfern sind Zweifaden-Glühlampen mittig im Reflektor platziert, wobei die Blende unterhalb einer Glühlampenwendel angeordnet ist. Bei dieser bekannten Anordung würde sich bei der Glühlampe mit einer Fernlichtwendel und Tagfahrlichtwendel (H15-Glühlampe) ein ungünstiges Verhältnis zwischen der nutzbaren Fläche für Fern- und Tagfahrlicht ergeben, d.h. für das Fernlicht steht zuwenig Fläche zur Verfügung, während das Tagfahrlicht mehr Fläche als nötig hat. Bei einem Verschieben der Glühlampe nach unten, um dem Fernlicht mehr Fläche zur Verfügung zu stellen, ist der Reflektor am vorderen Rand so geneigt sein, dass das obere Ende weit nach vorne ragt. Die heute üblichen Abschlussscheibe verlaufen jedoch in entgegengesetzte Richtung geneigt. Eine solche Anordnung ist nur bei entsprechend großen Einbautiefen am Fahrzeug möglich. Bei einer vorteilhaften Weiterbildung der Erfindung können dies Nachteile beseitigt werden, wenn der durch die Blende abschattbare obere Reflektorabschnitt eine für Tagfahrlicht ausgelegte Reflexionsfläche und der Reflektor unterhalb der für Tagfahrlicht ausgelegten Reflexionsfläche eine für Fernlicht ausgelegte untere Reflexionsfläche aufweist, wobei die obere Reflexionsfläche für Tagfahrlicht maximal 25% der gesamten Reflexionsfläche des Reflektors entspricht oder die Lampe entgegen der Lichtaustrittsrichtung des Reflektors gesehen und ausgehend von der Mitte einer vertikalen mittleren Linie einen Versatz nach oben hin von mindestens 5%, vorzugsweise 8 bis 12% der Reflektorhöhe aufweist oder der gesamte Lampenkolben entgegen der Lichtaustrittsrichtung des Reflektors gesehen, in der oberen Hälfte des Reflektors angeordnet ist. Durch eine außermittig die Reflektors angeordnete Position der Lampe kann die Flächenaufteilung zwischen Tagfahrlicht und Fernlicht den lichttechnischen Erfordernissen der Lichtfunktionen genau angepasst werden. Somit kann der Reflektor so gestaltet sein, dass möglichst viel Lichtleistung für das Fernlicht, aber noch genügend für das Tagfahrlicht zur Verfügung steht. In diesem Zusammenhang ist es vorteilhaft, wenn der obere Rand des Reflektors gegenüber seinem unteren Rand zur Rückseite des Reflektors nach hinten zurückversetzt angeordnet ist. Dies ist erst möglich durch den außermittigen Versatz der Glühlampe nach oben hin und die Form des Reflektors kann dieser mit seinem vorderen Rand der Neigung der Abschlussscheibe der Scheinwerfers, die nach oben hin schräg nach hinten verläuft, angepasst werden.In most headlamps, two-filament bulbs are placed in the center of the reflector, with the shutter located below a filament coil. In this known arrangement would result in the incandescent lamp with a high-beam filament and daytime running filament (H15 bulb) an unfavorable ratio between the usable area for daytime and driving lights, ie for the high beam is too little surface available, while the daytime running light more area than necessary Has. When moving the bulb downwards to provide more area for the high beam, the reflector at the front edge is tilted so that the top protrudes far forward. However, the lens used today run inclined in the opposite direction. Such an arrangement is possible only with correspondingly large installation depths on the vehicle. In an advantageous development of the invention, these disadvantages can be eliminated if the shadable by the aperture upper reflector portion has a designed for daytime running reflective surface and the reflector below the designed for daytime running reflection surface designed for high beam lower reflection surface, the upper reflection surface for daytime running lights 25th % of the total reflection surface of the reflector or the lamp seen against the light exit direction of the reflector and starting from the center of a vertical middle line has an offset upwards of at least 5%, preferably 8 to 12% of the reflector height or the entire lamp envelope against the light exit direction of the reflector, is arranged in the upper half of the reflector. By off-center the reflector arranged position of the lamp, the area distribution between daytime running lights and high beam can be adapted to the lighting requirements of lighting functions exactly. Thus, the reflector can be designed so that as much light power for the high beam, but still enough for the daytime running lights available stands. In this context, it is advantageous if the upper edge of the reflector is arranged offset from its lower edge to the rear of the reflector to the rear. This is only possible by the off-center offset of the bulb upwards and the shape of the reflector, this can be adjusted with its front edge of the inclination of the lens of the headlamp, which extends obliquely backwards to the rear.

Der Reflektor ist optisch vorteilhaft ausgelegt, wenn bei eingeschalteten Tagfahrlicht der untere Reflektorabschnitt eine bogenförmige Teillichtverteilung, deren Bogen nach oben geöffnet ist, und der obere Reflektorabschnitt eine Teillichtverteilung erzeugt, die oberhalb dieser verläuft und das Innere der bogenförmigen Teillichtverteilung ausfüllt. In diesem Zusammenhang ist es vorteilhaft, wenn die obere Reflexionsfläche für Tagfahrlicht eine das Licht der Tagfahrlichtwendel streuende Optikfläche aufweist, die eine obere Teillichtverteilung erzeugt, die zusammen mit einer unteren Teillichtverteilung, die der untere Reflektorabschnitt für Fernlicht erzeugt, eine Gesamtlichtverteilung für Tagfahrlicht ergibt, wobei das Licht der Tagfahrlichtwendel an der Reflexionsfläche mindestens zwischen 15° und 25°, vorzugsweise zwischen 18° bis 22° streut.The reflector is optically advantageous designed when switched on daytime running the lower reflector portion an arcuate partial light distribution, the arc is opened upwards, and the upper reflector portion generates a partial light distribution, which extends above this and the interior of the arc-shaped partial light distribution fills. In this context, it is advantageous if the upper reflection surface for daytime running light has a daytime running light scattering optics surface which generates a partial upper light distribution, which together with a lower partial light distribution, which generates the lower reflector portion for high beam, a total light distribution for daytime running lights, the light of the daytime running light at the reflection surface at least between 15 ° and 25 °, preferably between 18 ° to 22 ° scatters.

Der Reflektor ist Verwindungssteif und ist vom Erscheinungsbild her ansprechend, wenn die obere Reflexionsfläche für Tagfahrlicht von Optikelementen gebildete bogenförmig verlaufende breite Streifenabschnitte und die untere Reflexionsfläche für Fernlicht von Optikelementen gebildete vertikal verlaufende breite Streifenabschnitte aufweist, wobei die Anzahl der angrenzenden Enden von den bogenförmig und vertikal verlaufenden breiten Streifenabschnitten gleich groß ist.The reflector is torsionally rigid and appealing in appearance when the daytime running surface upper reflecting surface comprises arcuate broad strip portions formed by optical elements and the lower reflecting surface for high beam comprises optical broad strip portions formed by optical elements, the number of adjacent ends being arcuate and vertical extending wide strip portions is the same size.

Anhand der beigefügten Zeichnungen wird die Erfindung nachfolgend näher erläutert. Dabei zeigt:

Fig. 1
in einem vertikalen mittleren Teilschnitt durch einen Scheinwerfer für Fahrzeuge einen Reflektor mit einer Tagfahrlicht- und Fernlichtwendel und mit dem Verlauf der Lichtstrahlen der Fernlichtwendel, wobei oberhalb der Fernlichtwendel eine Blende angeordnet ist,
Fig. 2
in einem vertikalen mittleren Teilschnitt den Reflektor der Figur 1 mit dem Verlauf der Lichtstrahlen der Tagfahrlichtwendel,
Fig. 3
in einer Vorderansicht den Reflektor der Figuren 1 und 2 mit einer außermittig angeordneten Aufnahmeöffnung der Glühlampe,
Fig. 4
in einer Vorderansicht einen anderen Reflektor eines Scheinwerfers für Fahrzeuge mit einer mittig angeordneten Aufnahmenöffnung für eine Glühlampe,
Fig. 5
eine untere Teillichtverteilung, die von dem unteren Reflexionsabschnitt des Reflektors der Figuren 1 bis 3 durch die Tagfahrlichtwendel erzeugt wird,
Fig. 6
eine Gesamtlichtverteilung für Tagfahrlicht, die sich aus der unteren Teillichtverteilung und einer oberen Teillichtverteilung zusammensetzt, die von einem oberen Reflexionsabschnitt des Reflektors erzeugt wird,
Fig. 7
eine Lichtverteilung für Fernlicht, die von dem unteren Reflexionsabschnitt des Reflektors der Figuren 1 bis 3 durch die Fernlichtwendel erzeugt wird,
Fig. 8
in einer Vorderansicht den Reflektor der Figuren 1 bis 3 mit bogenförmigen und vertikalen optischen Streifenabschnitten und
Fig. 9
in einer Seitenansicht den Reflektor der Figur 8.
Reference to the accompanying drawings, the invention is explained in more detail below. Showing:
Fig. 1
in a vertical central partial section through a headlight for vehicles, a reflector with a daytime running and high-beam filament and with the course of the light rays of the high-beam filament, wherein above the high-beam filament a diaphragm is arranged,
Fig. 2
in a vertical middle partial section of the reflector of Figure 1 with the course of the light rays of the daytime running filament,
Fig. 3
1 shows a front view of the reflector of Figures 1 and 2 with an off-center receiving opening of the bulb,
Fig. 4
in a front view another reflector of a headlamp for vehicles with a centrally located receiving opening for an incandescent lamp,
Fig. 5
a lower partial light distribution, which is generated by the lower reflection section of the reflector of Figures 1 to 3 by the daytime running filament,
Fig. 6
a total daytime running light distribution composed of the lower partial light distribution and an upper partial light distribution generated by an upper reflecting portion of the reflector,
Fig. 7
a light distribution for high beam, which is generated by the lower reflection section of the reflector of Figures 1 to 3 by the high beam filament,
Fig. 8
in a front view of the reflector of Figures 1 to 3 with arcuate and vertical optical strip portions and
Fig. 9
in a side view of the reflector of Figure 8.

Der Scheinwerfer für Fahrzeuge nach den Figuren 1 und 2 weist ein topfförmiges Gehäuse (nicht dargestellt) und ein die Vorderseite des Gehäuse abdeckende lichtdurchlässige Abschlussscheibe 16 auf, die zumindest abschnittsweise frei von Optikelementen ist. Somit kann man in durch die Abschlussscheibe 16 hindurch in das Innere des Scheinwerfer hinein sehen. Die Abschlussscheibe 16 ist nach oben hin nach hinten geneigt, d.h. der oberen Rand der Abschlussscheibe 16 ist gegenüber dem unteren Rand nach hinten zurückversetzt.The headlight for vehicles according to Figures 1 and 2 has a cup-shaped housing (not shown) and a front cover of the housing covering translucent cover 16, which is at least partially free of optical elements. Thus, one can see in through the lens 16 through into the interior of the headlight into it. The cover plate 16 is upward to the rear inclined, ie the upper edge of the cover plate 16 is set back relative to the lower edge.

Hinter der schräg verlaufenden Abschlussscheibe 16 ist ein schalenförmiger Reflektor 1 angeordnet. Der Reflektor 1 besteht aus Kunststoff und weist im hinteren Bereich eine Aufnahmeöffnung 17 für eine Glühlampe auf, von der eine Tagfahrlichtwendel 4, eine Fernlichtwendel 3 und eine der Fernlichtwendel 3 zugeordnete wannenförmige Blende 5 dargestellt ist. Die Tagfahrlichtwendel 4 ist zwischen der Aufnahmeöffnung 17 und der Fernlichtwendel 3 angeordnet, wobei die Fernlichtwendel 3 auf einer Achse 18 liegt, die die Längsachse der Glühlampe bzw. die optische Achse des Reflektors 1 ist, und die Tagfahrlichtwendel 4 etwas unterhalb der Achse 18 liegt. Die wannenförmige Blende 5 ist oberhalb der Fernlichtwendel 3 und symmetrisch zur einer vertikalen mittleren Linie 9 angeordnet ist. Die Blende 5 schirmt eine obere Reflexionsfläche 7 eines oberen Reflektorabschnitts 6 ab. Die durch die Blende 5 abgeschirmte Reflexionsfläche 7 ist kleiner als die Reflexionsfläche, die oberhalb einer horizontalen Fläche liegt, in der die Achse 18 verläuft. Auf die an die obere Reflexionsfläche 7 angrenzende untere Reflexionsfläche 8, die als Freiformfläche ausgebildet sein kann, sind die Fernlichtstrahlen 19 gerichtet, die die untere Reflexionsfläche 8 zu einem weit in die Ferne reichendem Lichtbündel sammelt. Das Fernlichtbündel erzeugt eine Fernlichtverteilung. Die Fernlichtstrahlen 19 verlaufen bis auf kleine Winkelabweichungen nahezu parallel.Behind the oblique cover plate 16, a cup-shaped reflector 1 is arranged. The reflector 1 is made of plastic and has at the rear a receiving opening 17 for an incandescent lamp, of which a daytime running light 4, a high-beam filament 3 and a high-beam filament 3 associated trough-shaped aperture 5 is shown. The daytime running filament 4 is arranged between the receiving opening 17 and the high-beam filament 3, wherein the high-beam filament 3 is located on an axis 18, which is the longitudinal axis of the incandescent lamp or the optical axis of the reflector 1, and the daytime running filament 4 is slightly below the axis 18. The trough-shaped aperture 5 is arranged above the high-beam filament 3 and symmetrically to a vertical central line 9. The diaphragm 5 shields an upper reflection surface 7 of an upper reflector section 6. The shielded by the aperture 5 reflection surface 7 is smaller than the reflection surface, which lies above a horizontal surface in which the axis 18 extends. On the adjacent to the upper reflection surface 7 lower reflection surface 8, which may be formed as a free-form surface, the high beam beams 19 are directed, which collects the lower reflection surface 8 to a reaching far into the light beam. The high beam produces a high beam distribution. The high beam beams 19 are almost parallel except for small angular deviations.

Die auf die untere Reflexionsfläche 8 auftreffenden Lichtstrahlen 21 der Tagfahrlichtwendel 4 erzeugen wegen ihrer Defokussierung zur unteren Reflexionsfläche 8 eine bogenförmig verlaufende untere Teillichtverteilung 15, wobei der Bogen nach oben geöffnet ist. Die obere Reflexionsfläche 7 ist für Tagfahrlicht optimal ausgelegt und die auf die obere Reflexionsfläche 7 auftreffenden Lichtstrahlen erzeugen eine Teillichtverteilung 12, die im wesentlichen oberhalb der unteren Teillichtverteilung 15 angeordnet ist. Die obere Teillichtverteilung 12 füllt mit einem Bereich das Innere des Bogens der unteren Teillichtverteilung 12 aus und weist einen Balken auf, der oberhalb der Enden des Bogens der unteren Teillichtverteilung 15 verläuft.The incident on the lower reflection surface 8 light rays 21 of the daytime running light spiral 4 generate because of their defocus to the lower reflection surface 8 an arcuately extending lower partial light distribution 15, wherein the sheet is open upwards. The upper reflection surface 7 is optimally designed for daytime running lights and the light rays impinging on the upper reflection surface 7 generate a partial light distribution 12, which is arranged substantially above the lower partial light distribution 15. The upper partial light distribution 12 fills in a region of the interior of the arc of the lower partial light distribution 12 and has a bar which extends above the ends of the arc of the lower partial light distribution 15.

Die obere Reflexionsfläche 7 des Reflektors weist mehrere bogenförmige optische Streifenabschnitte 13 auf, deren Verlauf dem Verlauf des äußeren Randes des Reflektors 1 angepasst ist und/oder die die Aufnahmeöffnung 17 konzentrisch umgeben. Die bogenförmigen Streifenabschnitte 13 setzten sich jeweils aus nebeneinander angeordneten Optikelementen zusammen. Die untere Reflexionsfläche 7 weist mehrere vertikal verlaufende optische Streifenabschnitte 14 auf, die bis an die bogenförmigen Streifenabschnitte 13 herangehen. Jedem Ende der bogenförmigen Streifenabschnitte 13 ist zumindest ein vertikaler Streifenabschnitt 13 zugeordnet. Für den Betrachter erscheint die gesamte Reflexionsfläche des Reflektors 1 torbogenartig und somit besteht ein harmonisches Erscheinungsbild. Durch eine entsprechende Ausbildung der Streifenabschnitte kann ein aus Kunststoff bestehender dünnwandiger Reflektor eine ausreichende Steifigkeit und Wärmebeständigkeit aufweisen.The upper reflection surface 7 of the reflector has a plurality of arcuate optical strip sections 13, whose course is adapted to the course of the outer edge of the reflector 1 and / or surrounding the receiving opening 17 concentrically. The arcuate strip sections 13 are each composed of juxtaposed optical elements. The lower reflection surface 7 has a plurality of vertically extending optical strip sections 14, which approach the arcuate strip sections 13. Each end of the arcuate strip sections 13 is assigned at least one vertical strip section 13. For the viewer, the entire reflection surface of the reflector 1 appears like a torbogen and thus there is a harmonious appearance. By appropriate formation of the strip portions, a thin-walled reflector made of plastic may have sufficient rigidity and heat resistance.

Bei dem Reflektor 1 nach den Figuren 1, 2 , 8 und 9 ist die Aufnahmeöffnung 17 außermittig des Reflektors 1 angeordnet. Die Aufnahmeöffnung 17 ist entgegen der Lichtaustrittsrichtung des Reflektors 1 gesehen nach oben hin versetzt (Versatz 10) angeordnet. Die äußeren Reflektorabmessungen liegen zwischen 90 und 110 mm und der Versatz 10 beträgt etwa 8 bis 12 % der äußeren Reflektorabmessung. Durch den Versatz 10 kann die gesamte Reflexionsfläche des Reflektors 1 so ausgelegt werden, dass der vordere Rand des Reflektors 1 ebenso wie die Abschlussscheibe 16 nach oben hin schräg nach hinten verläuft. Dabei kann der vordere Rand des Reflektors 1 etwa in einem äquidistanten Abstand zur Abschlussscheibe 16 verlaufen.In the reflector 1 according to Figures 1, 2, 8 and 9, the receiving opening 17 is arranged off-center of the reflector 1. The receiving opening 17 is seen against the light exit direction of the reflector 1 offset upwards offset (10). The outer reflector dimensions are between 90 and 110 mm and the offset 10 is about 8 to 12% of the outer reflector dimension. By the offset 10, the entire reflection surface of the reflector 1 can be designed so that the front edge of the reflector 1 as well as the cover plate 16 extends obliquely backwards towards the top. In this case, the front edge of the reflector 1 extend approximately at an equidistant distance from the cover plate 16.

Bei dem Reflektor 1 der Figur 3 ist die Aufnahmeöffnung 17 mittig im Reflektor 1 angeordnet.In the reflector 1 of Figure 3, the receiving opening 17 is arranged centrally in the reflector 1.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1.1.
Reflektorreflector
2.Second
Glühlampelight bulb
3.Third
FernlichtwendelHigh beam filament
4.4th
Tagfahrlichtwendeldaytime running Wendel
5.5th
Blendecover
6.6th
oberer Reflektorabschnittupper reflector section
7.7th
obere Reflexionsflächeupper reflection surface
8.8th.
untere Reflexionsflächelower reflection surface
9.9th
vertikale Linievertical line
10.10th
Versatzoffset
11.11th
oberer Randupper edge
12.12th
obere Teillichtverteilungupper partial light distribution
13.13th
bogenförmige Streifenabschnittearcuate strip sections
14.14th
vertikale Streifenabschnittevertical strip sections
15.15th
untere Teillichtverteilunglower partial light distribution
16.16th
Abschlussscheibelens
17.17th
Aufnahmeöffnungreceiving opening
18.18th
Achseaxis
19.19th
FernlichtstrahlenHigh beam radiation
20.20th
FernlichtverteilungBeam light distribution
21.21st
Lichtstrahlenlight rays
22.22nd
Lichtstrahlenlight rays

Claims (13)

Scheinwerfer für Fahrzeuge mit einem schalenförmigen Reflektor (1), mit einer dem Reflektor (1) zugeordneten Glühlampe (2), deren Lampenkolben in Lichtaustrittsrichtung des Reflektors (1) weist und die eine Fernlichtwendel (3) und eine Tagfahrlichtwendel (4) aufweist, wobei die Tagfahrlichtwendel (4) zwischen dem Reflektor (1) und der Fernlichtwendel (3) angeordnet ist und der Fernlichtwendel (3) eine Blende (5) zugeordnet ist, durch die bei Fernlicht ein Reflektorabschnitt (6) abschattbar ist, der kleiner als die halbe Reflexionsfläche des Reflektors (1) ist, dadurch gekennzeichnet, dass die Blende (5) oberhalb der Fernlichtwendel (3) angeordnet ist, wobei der durch die Blende (5) abschattbare Reflektorabschnitt (6) im oberen Bereich des Reflektors (1) angeordnet ist.Headlamp for vehicles with a dish-shaped reflector (1), with an incandescent lamp (2) associated with the reflector (1) whose lamp bulb points in the light exit direction of the reflector (1) and which has a high-beam filament (3) and a daytime running filament (4) the daytime running light coil (4) is arranged between the reflector (1) and the high-beam filament (3) and the high-beam filament (3) is associated with a diaphragm (5) through which a reflector section (6) can be shaded in the case of high-beam illumination, which is smaller than half Reflection surface of the reflector (1) is, characterized in that the diaphragm (5) above the high-beam coil (3) is arranged, wherein the by the aperture (5) shadable reflector portion (6) in the upper region of the reflector (1) is arranged. Scheinwerfer nach Anspruch 1, dadurch gekennzeichnet, dass der durch die Blende (5) abschattbare obere Reflektorabschnitt (6) eine für Tagfahrlicht ausgelegte Reflexionsfläche (7) aufweist.Headlight according to Claim 1, characterized in that the upper reflector section (6) which can be shaded by the diaphragm (5) has a reflection surface (7) designed for daytime running lights. Scheinwerfer nach Anspruch 2, dadurch gekennzeichnet, dass der Reflektor unterhalb der für Tagfahrlicht ausgelegten Reflexionsfläche eine für Fernlicht ausgelegte untere Reflexionsfläche (8) aufweist.Headlight according to Claim 2, characterized in that the reflector has a lower reflection surface (8) designed for high-beam, below the reflection surface designed for daytime running lights. Scheinwerfer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die obere Reflexionsfläche (6) für Tagfahrlicht maximal 25% der gesamten Reflexionsfläche des Reflektors (1) entspricht.Headlamp according to one of claims 1 to 3, characterized in that the upper reflection surface (6) for daytime running lights corresponds to a maximum of 25% of the total reflection surface of the reflector (1). Scheinwerfer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Glühlampe (2) entgegen der Lichtaustrittsrichtung des Reflektors (1) gesehen und ausgehend von der Mitte einer vertikalen mittleren Linie (9) einen Versatz (10) nach oben hin von mindestens 5% der Reflektorhöhe aufweist.Headlamp according to one of claims 1 to 4, characterized in that the incandescent lamp (2) seen against the light exit direction of the reflector (1) and starting from the center of a vertical middle line (9) an offset (10) towards the top of at least 5 % of the reflector height. Scheinwerfer nach Anspruch 5, dadurch gekennzeichnet, dass die Lampe vorzugsweise um 8 bis 12 % nach oben versetzt angeordnet ist.Headlamp according to claim 5, characterized in that the lamp is preferably arranged offset by 8 to 12% upwards. Scheinwerfer nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass entgegen der Lichtaustrittsrichtung des Reflektors (1) gesehen, der gesamte Lampenkolben in der oberen Hälfte des Reflektors (1) angeordnet ist.Headlamp according to one of claims 1 to 6, characterized in that , viewed against the light exit direction of the reflector (1), the entire lamp envelope in the upper half of the reflector (1) is arranged. Scheinwerfer nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der obere Rand (11) des Reflektors (1) gegenüber seinem unteren Rand (12) zur Rückseite des Reflektors (1) nach hinten zurückversetzt angeordnet ist.Headlamp according to one of claims 1 to 7, characterized in that the upper edge (11) of the reflector (1) with respect to its lower edge (12) to the back of the reflector (1) is set back set back. Scheinwerfer nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass bei eingeschalteten Tagfahrlicht die untere Reflexionsfläche (8) eine bogenförmige Teillichtverteilung (15), deren Bogen nach oben geöffnet ist, und die obere Reflexionsfläche (7) eine obere Teillichtverteilung (12) erzeugt, die oberhalb dieser verläuft und das Innere des Bogens der unteren Teillichtverteilung (15) ausfüllt.Headlamp according to one of claims 1 to 8, characterized in that when the daytime running lights the lower reflection surface (8) an arcuate partial light distribution (15), the arc is opened upwards, and the upper reflection surface (7) generates an upper partial light distribution (12) , which runs above this and the interior of the arc of the lower partial light distribution (15) fills. Scheinwerfer nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die obere Reflexionsfläche (7) für Tagfahrlicht eine das Licht der Tagfahrlichtwendel (4) streuende Optikfläche aufweist, die eine obere Teillichtverteilung (12) erzeugt, die zusammen mit einer unteren Teillichtverteilung (1), die die untere Reflexionsfläche (8) für Fernlicht erzeugt, eine Gesamtlichtverteilung für Tagfahrlicht ergibt.Headlamp according to one of claims 1 to 9, characterized in that the upper reflection surface (7) for daytime running a light of the daytime running filament (4) scattering optical surface which generates an upper partial light distribution (12), which together with a lower partial light distribution (1 ), which generates the lower reflecting surface (8) for high beam, gives a total light distribution for daytime running lights. Scheinwerfer nach Anspruch 10, dadurch gekennzeichnet, dass das Licht der Tagfahrlichtwendel (4) an der oberen Reflexionsfläche (6) mindestens zwischen 15° und 25°, vorzugsweise zwischen 18° bis 22° streut.Headlight according to claim 10, characterized in that the light of the daytime running light coil (4) at the upper reflection surface (6) at least between 15 ° and 25 °, preferably between 18 ° to 22 ° scatters. Scheinwerfer nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die obere Reflexionsfläche (7) für Tagfahrlicht von Optikelementen gebildete bogenförmig verlaufende breite Streifenabschnitte (13) und die untere Reflexionsfläche (8) für Fernlicht von Optikelementen gebildete vertikal verlaufende breite Streifenabschnitte (14) aufweist.Headlamp according to one of claims 1 to 11, characterized in that the upper reflection surface (7) for daytime running light formed by optical elements arcuate broad strip portions (13) and the lower reflection surface (8) for high beam formed by optical elements vertically extending broad strip portions (14) having. Scheinwerfer nach Anspruch 12, dadurch gekennzeichnet, dass die Anzahl der angrenzenden Enden von den bogenförmig und vertikal verlaufenden breiten Streifenabschnitten (13 und 14) gleich groß ist.Headlamp according to claim 12, characterized in that the number of adjacent ends of the arcuate and vertically extending wide strip portions (13 and 14) is equal.
EP06119535A 2006-08-25 2006-08-25 Headlamp for a vehicle Active EP1892461B1 (en)

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EP06119535A EP1892461B1 (en) 2006-08-25 2006-08-25 Headlamp for a vehicle

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072888A3 (en) * 2007-12-21 2010-04-14 Hella KG Hueck & Co. Headlamp for vehicles
EP2075500A3 (en) * 2007-12-27 2010-04-28 Koito Manufacturing Co., Ltd. Vehicle headlamp
DE102009039786A1 (en) 2009-09-02 2011-03-03 Osram Gesellschaft mit beschränkter Haftung Headlight for vehicle e.g. car, has two filaments and screen that is arranged laterally beside one of filaments such that screen lies between filament and section of reflector that is shaded by screen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1825084A (en) * 1927-08-15 1931-09-29 Delco Remy Corp Reflector for automobile headlamps
FR2390671A1 (en) 1977-05-10 1978-12-08 Bayerische Motoren Werke Ag DRIVING LIGHTS AND ROAD LIGHTING FOR MOTOR VEHICLES
US6354718B1 (en) * 1999-05-27 2002-03-12 Koito Manufacturing Co., Ltd. Vehicular headlamp having improved low-beam light distribution pattern
DE20210171U1 (en) * 2002-07-02 2002-09-05 Automotive Lighting Reutlingen Headlights for motor vehicles
EP1382900A1 (en) * 2002-07-15 2004-01-21 Valeo Vision Motor vehicle headlamp with a double filament lamp
EP1667205A2 (en) 2004-11-03 2006-06-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Vehicle headlight lamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1825084A (en) * 1927-08-15 1931-09-29 Delco Remy Corp Reflector for automobile headlamps
FR2390671A1 (en) 1977-05-10 1978-12-08 Bayerische Motoren Werke Ag DRIVING LIGHTS AND ROAD LIGHTING FOR MOTOR VEHICLES
US6354718B1 (en) * 1999-05-27 2002-03-12 Koito Manufacturing Co., Ltd. Vehicular headlamp having improved low-beam light distribution pattern
DE20210171U1 (en) * 2002-07-02 2002-09-05 Automotive Lighting Reutlingen Headlights for motor vehicles
EP1382900A1 (en) * 2002-07-15 2004-01-21 Valeo Vision Motor vehicle headlamp with a double filament lamp
EP1667205A2 (en) 2004-11-03 2006-06-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Vehicle headlight lamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072888A3 (en) * 2007-12-21 2010-04-14 Hella KG Hueck & Co. Headlamp for vehicles
EP2075500A3 (en) * 2007-12-27 2010-04-28 Koito Manufacturing Co., Ltd. Vehicle headlamp
DE102009039786A1 (en) 2009-09-02 2011-03-03 Osram Gesellschaft mit beschränkter Haftung Headlight for vehicle e.g. car, has two filaments and screen that is arranged laterally beside one of filaments such that screen lies between filament and section of reflector that is shaded by screen

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