DE102004043108A1 - Vehicle headlamp comprises a housing containing a light source and a reflector which form one unit together with a light-permeable covering plate - Google Patents

Vehicle headlamp comprises a housing containing a light source and a reflector which form one unit together with a light-permeable covering plate Download PDF

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Publication number
DE102004043108A1
DE102004043108A1 DE102004043108A DE102004043108A DE102004043108A1 DE 102004043108 A1 DE102004043108 A1 DE 102004043108A1 DE 102004043108 A DE102004043108 A DE 102004043108A DE 102004043108 A DE102004043108 A DE 102004043108A DE 102004043108 A1 DE102004043108 A1 DE 102004043108A1
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DE
Germany
Prior art keywords
light
light source
reflector
covering plate
edge
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
DE102004043108A
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German (de)
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DE102004043108B4 (en
Inventor
Christoph Dambowy
Heinz Weinmann
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.)
Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication date
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Priority to DE102004043108A priority Critical patent/DE102004043108B4/en
Publication of DE102004043108A1 publication Critical patent/DE102004043108A1/en
Application granted granted Critical
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Expired - Fee Related legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0029—Spatial arrangement
    • B60Q1/0041—Spatial arrangement of several lamps in relation to each other
    • B60Q1/0052—Spatial arrangement of several lamps in relation to each other concentric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0029—Spatial arrangement
    • B60Q1/0041—Spatial arrangement of several lamps in relation to each other
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255

Abstract

Vehicle headlamp comprises a housing (10) containing a light source (11) and a reflector (12) which form one unit together with a light-permeable covering plate (14). The edge (16) of the covering plate is provided with uneven surfaces for coupling light. Preferred Features: The uneven surfaces form reflection surfaces directly on the edge of the covering plate and are in the form of grooves or notches.

Description

Die Erfindung betrifft eine Kraftfahrzeugleuchte mit einem Gehäuse, in dem mindestens eine Lichtquelle angeordnet ist und zumindest eine Abdeckscheibe.The The invention relates to a motor vehicle light with a housing, in the at least one light source is arranged and at least one Cover plate.

Aus der EP 0 900 694 B1 ist bereits eine Signalleuchte für Fahrzeuge bekannt, bei welcher in einem Gehäuse mindestens eine Lichtquelle angeordnet ist, wobei ein Lichtleiter als Lichtauskoppelelement ausgebildet ist und in dem Gehäuse angeordnet ist. Das Lichtauskoppelelement ist hierbei kreisförmig an dem Scheinwerfer angeordnet, um so durch die randseitige Anordnung des Lichtauskoppelelementes die Lichtfunktion des Scheinwerfers nicht zu beeinträchtigen. Durch die langgestreckte Ausbildung des Lichtauskoppelelementes tritt eine flächenmäßige Vergrößerung des Positionslichtes ein.From the EP 0 900 694 B1 a signal light for vehicles is already known, in which at least one light source is arranged in a housing, wherein a light guide is designed as a light outcoupling element and is arranged in the housing. The light output element is in this case arranged in a circle on the headlight so as not to impair the light function of the headlight by the edge-side arrangement of the light output element. Due to the elongated design of the light output element occurs an areal enlargement of the position light.

Mit der erfindungsgemäßen Anordnung eines Kraftfahrzeugscheinwerfers mit Umrissbeleuchtung mit den kennzeichnenden Merkmalen des Hauptanspruchs wird vorteilhafterweise die Umrissbeleuchtung ohne zusätzliches Element erreicht. Die erfindungsgemäßen Merkmale des Hauptanspruchs, wonach das in die Streuscheibe eingekoppelte Licht durch eine spezielle Ausbildung des Randes der Streuscheibe zu einer Umrissbeleuchtung wieder ausgekoppelt wird, bietet den Vorteil, dass es einfach und kostensparend zu realisieren ist.With the inventive arrangement a motor vehicle headlamp with outline lighting with the characterizing Features of the main claim is advantageously the outline lighting without additional Element reached. The features of the main claim according to the invention, according to which the light coupled into the diffuser by a special Forming the edge of the lens to an outline lighting Being decoupled again offers the advantage of being simple and easy cost saving to realize.

Durch die Merkmale in den abhängigen Ansprüchen sind vorteilhafte Weiterbildungen und Verbesserungen der erfindungsgemäßen Anordnung gegeben.By the characteristics in the dependent claims Advantageous developments and improvements of the inventive arrangement are given.

So wird das Erscheinungsbild durch einen Blendeinsatz, welcher für einen verstärkten Kontrast im Erscheinungsbild sorgt, deutlich verbessert.So The appearance of a glare, which is for a increased Contrast in the appearance ensures significantly improved.

Ein weiterer Vorteil ergibt sich dadurch dass die Unebenheiten am Lichtscheibenrand (16) sowohl als durchgehende Umrissbeleuchtung oder partiell als Konturbeleuchtung ausbildbar sind.Another advantage arises from the fact that the unevenness at the edge of the lens ( 16 ) can be formed both as continuous outline lighting or partially as contour lighting.

So ist es beispielsweise vorteilhaft, die Lichtauskopplung umlaufend als Umrissbeleuchtung bzw. zur partiell als Konturbeleuchtung auszulegen.So For example, it is advantageous to circulate the light extraction designed as outline lighting or partially as contour lighting.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und im Folgenden näher erläutert.One embodiment The invention is illustrated in the drawings and in the following explained in more detail.

Es zeigenIt demonstrate

1 schematisch eine erfindungsgemäße Anordnung und 1 schematically an arrangement according to the invention and

2 den Schnitt durch den Rand der Streuscheibe. 2 the section through the edge of the lens.

1 zeigt eine schematische Anordnung einer Scheinwerferanordnung mit einem schematisch angedeuteten Gehäuse 10, einer Lichtquelle 11, einem Reflektor 12, wobei der Lichtaustritt 13 mittels Lichtquelle 11 und Reflektor 12 zum Betrachter hin erfolgt. Diese Scheinwerferanordnung ist von einer Streuscheibe 14 abgedeckt, welche üblicherweise für einen Schutz der Lichtanordnung vor Beschädigung sorgt. Das Licht der Lichtquelle 11 tritt hierbei ausgehend von der Lichtquelle durch die Streuscheibe hindurch. Jedoch wird durch den unterschiedlichen Berechnungsindex von Luft und Glas ein Anteil des Lichtes der Lichtquelle 11 in die Streuscheibe 14 eingekoppelt. In der 1 ist dieses eingekoppelte Licht in der Streuscheibe 14 mit dem Bezugszeichen 15 versehen. Bei der erfindungsgemäßen Lösung einer Umrissbeleuchtung wird nun dieses in die Streuscheibe eingekoppelte Licht dahingehend genutzt, dass es über den Streuscheibenrand 16 wieder ausgekoppelt wird. Die Lichtauskoppelstellen sind in der 1 symbolisch mit dem Bezugszeichen 17 angegeben. In der 1 ist zusätzlich zu der üblichen Anordnung von Gehäuse, Lichtquelle, Reflektor und Lichtaustrittsfläche eine Blende 18 vorgesehen. Hier wird deutlich, dass die Streuscheibe 14 flächenmäßig größer gestaltet ist, als die eigentliche Scheinwerferlichtaustrittsfläche 13. Damit ist es möglich, die Umrissbeleuchtung in ihrer Formgebung zu variieren und den nicht aktiv beleuchteten Teil mit einer Blende 18 zu versehen, so dass die Umrissbeleuchtung am Streuscheibenrand vom Betrachter wahrgenommen wird und zusätzlich das Licht des Scheinwerfers, wobei beide in ihrer Formgebung voneinander variieren können. 1 shows a schematic arrangement of a headlamp assembly with a schematically indicated housing 10 , a light source 11 , a reflector 12 , where the light emission 13 by means of light source 11 and reflector 12 takes place towards the viewer. This headlamp assembly is of a lens 14 covered, which usually provides protection of the light assembly from damage. The light of the light source 11 occurs here, starting from the light source through the lens. However, due to the different index of calculation of air and glass, a proportion of the light of the light source 11 in the diffuser 14 coupled. In the 1 is this coupled light in the lens 14 with the reference number 15 Mistake. In the solution according to the invention of an outline illumination, this light coupled into the diffusing screen is now used in such a way that it passes over the diffuser edge 16 is decoupled again. The light extraction points are in the 1 symbolically with the reference numeral 17 specified. In the 1 In addition to the usual arrangement of housing, light source, reflector and light exit surface is a diaphragm 18 intended. Here it becomes clear that the diffuser 14 is made larger in terms of area, as the actual headlight light exit surface 13 , This makes it possible to vary the outline lighting in their shape and the non-actively illuminated part with a panel 18 to be provided so that the outline lighting on the lens edge is perceived by the viewer and in addition the light of the headlamp, both of which can vary in shape from each other.

Der Streuscheibenrand ist in 2 dargestellt, wobei hier deutlich zu sehen ist, dass der Scheibenrand 16 der Streuscheibe 14 mit Unebenheiten versehen ist, die beispielsweise in der Form von Riffeln 20, Kerben 21 oder trapezförmigen Erhebungen 22 ausgeführt sein können. In jedem Fall wird die plane Oberfläche des Randes durchbrochen. Über diese Unebenheiten erfolgt dann die Auskoppelung des Lichtes für die Umrissbeleuchtung.The diffuser edge is in 2 shown here, which clearly shows that the disc edge 16 the diffuser 14 provided with bumps, for example in the form of corrugations 20 , Notches 21 or trapezoidal elevations 22 can be executed. In any case, the flat surface of the edge is broken. The uncoupling of the light for the outline lighting then takes place via these irregularities.

Dabei ist es möglich, die Lichtauskopplung umlaufend als durchgehende Umrissbeleuchtung oder nur partiell als Konturbeleuchtung auszulegen.there Is it possible, the Lichtauskopplung circumferentially as a continuous outline lighting or only partially designed as contour lighting.

In jedem Fall ist für die Umrissbeleuchtung keine zusätzliche Lichtquelle erforderlich.In every case is for the outline lighting no additional Light source required.

Claims (4)

Kraftfahrzeugscheinwerfer mit einem Gehäuse, in dem mindestens eine Lichtquelle (11) und mindestens ein Reflektor (12) angeordnet sind und welches zusammen mit einer lichtdurchlässigen Abdeckscheibe (14) eine Einheit bildet, wobei der Scheibenrand (16) der Abdeckscheibe (14) zur Lichtauskopplung mit Unebenheiten (20, 21, 22) versehen ist.Motor vehicle headlight with a housing in which at least one light source ( 11 ) and at least one reflector ( 12 ) are arranged and which together with a translucent cover ( 14 ) forms a unit, the disk edge ( 16 ) of the cover ( 14 ) for light extraction with bumps ( 20 . 21 . 22 ) is provided. Kraftfahrzeugscheinwerfer nach Anspruch 1, dadurch gekennzeichnet, dass die Unebenheiten am Lichtscheibenrand (16) unmittelbar aneinander anschließende Reflektionsflächen bilden und diese Reflektionsflächen als durchgehende Umrissbeleuchtung oder partiell als Konturbeleuchtung ausgebildet sind.Motor vehicle headlight according to claim 1, characterized in that the unevenness at the lens edge ( 16 ) directly adjoin one another reflection surfaces and these reflection surfaces are formed as a continuous outline lighting or partially as contour lighting. Kraftfahrzeugscheinwerfer nach Anspruch 1, dadurch gekennzeichnet, dass die Unebenheiten in Form von Rillen, Kerben oder trapezförmig gebildet sind.Motor vehicle headlight according to claim 1, characterized characterized in that the bumps in the form of grooves, notches or trapezoidal are formed. Kraftfahrzeugscheinwerfer nach Anspruch 1, dadurch gekennzeichnet, dass das an den Unebenheiten des Scheibenrandes (16) ausgekoppelte Licht der Umrissbeleuchtung der Lichtanteil der Lichtquelle (11) ist, der beim Durchscheinen der Abdeckscheibe an der der Lichtquelle (11) zuwandten Seite der Abdeckscheibe (14) durch den unterschiedlichen Brechungsindex nicht durch die Abdeckscheibe (14) hindurchtritt sondern in diese eingekoppelt wird.Motor vehicle headlight according to claim 1, characterized in that on the unevenness of the disc edge ( 16 ) decoupled light of the outline lighting the light portion of the light source ( 11 ), which, when the cover disc appears on the light source ( 11 ) side of the cover ( 14 ) by the different refractive index not by the cover ( 14 ) but is coupled into this.
DE102004043108A 2004-09-07 2004-09-07 Motor vehicle light with outline lighting Expired - Fee Related DE102004043108B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102004043108A DE102004043108B4 (en) 2004-09-07 2004-09-07 Motor vehicle light with outline lighting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004043108A DE102004043108B4 (en) 2004-09-07 2004-09-07 Motor vehicle light with outline lighting

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DE102004043108B4 DE102004043108B4 (en) 2007-08-02

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19652159A1 (en) * 1996-12-14 1998-06-18 Bosch Gmbh Robert Headlight system for vehicle with optical-fibre elements
DE19838224A1 (en) * 1998-08-22 2000-02-24 Daimler Chrysler Ag Front lamp arrangement for cars has additional lamp devices with optic fibre element conducting light from entry side to exit side around periphery of headlamp unit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19739173A1 (en) * 1997-09-06 1999-03-11 Hella Kg Hueck & Co Signal light for vehicles
JP2002293189A (en) * 2001-03-30 2002-10-09 Toyoda Gosei Co Ltd Headlamp garnish

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19652159A1 (en) * 1996-12-14 1998-06-18 Bosch Gmbh Robert Headlight system for vehicle with optical-fibre elements
DE19838224A1 (en) * 1998-08-22 2000-02-24 Daimler Chrysler Ag Front lamp arrangement for cars has additional lamp devices with optic fibre element conducting light from entry side to exit side around periphery of headlamp unit

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8327 Change in the person/name/address of the patent owner

Owner name: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT, 7, DE

8327 Change in the person/name/address of the patent owner

Owner name: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT, 7, DE

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee