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EP0108915A1 - Non-dazzling headlamp for motor vehicles - Google Patents

Non-dazzling headlamp for motor vehicles Download PDF

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Publication number
EP0108915A1
EP0108915A1 EP83109995A EP83109995A EP0108915A1 EP 0108915 A1 EP0108915 A1 EP 0108915A1 EP 83109995 A EP83109995 A EP 83109995A EP 83109995 A EP83109995 A EP 83109995A EP 0108915 A1 EP0108915 A1 EP 0108915A1
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EP
European Patent Office
Prior art keywords
lens
diaphragm
focal point
reflector
edges
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.)
Withdrawn
Application number
EP83109995A
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German (de)
French (fr)
Inventor
Wilhelm Röhling
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.)
Westfaelische Metall Industrie KG Hueck and Co
Original Assignee
Westfaelische Metall Industrie KG Hueck and Co
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 Westfaelische Metall Industrie KG Hueck and Co filed Critical Westfaelische Metall Industrie KG Hueck and Co
Publication of EP0108915A1 publication Critical patent/EP0108915A1/en
Withdrawn legal-status Critical Current

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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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof

Definitions

  • the invention relates to a dimmed headlight for motor vehicles with an ellipsoidal reflector that bundles the light into a focal spot, a light source arranged in the inner focal point of the reflector, a projection lens arranged with its focal point in the outer focal point of the reflector, and a diaphragm arranged in the focal spot, the two of which are located as a horizontally extending light-dark boundary that lies at the height of the optical axis of the reflector.
  • An incandescent lamp with an incandescent filament is used as the light source. Due to the size of the filament (no point light source), the light in the outer focal point of the reflector is not collected to a focal point but to a focal spot.
  • the diaphragm edge which runs essentially horizontally and is to be imaged as a light-dark boundary, has a step or a kink that is also to be imaged
  • the collection of the light by the reflector to a focal spot and not to a focal point is advantageous.
  • the reflector produces a light spot in its outer focal point, which reflects a longer section of the substantially horizontal diaphragm edge as a light-dark boundary.
  • This light spot is advantageously designed in that the reflector is made wider in the horizontal section than in the vertical section. As a result, the focal spot is stretched in the horizontal direction, whereby a longer aperture edge section can be imaged.
  • the object of the invention is to shield the spectral rays going up beyond the light-dark boundary.
  • This object is achieved in that the diaphragm has two - viewed in the light exit direction - mutually spaced edges and the distance of the diaphragm edges is equal or slightly larger than the distance of the focal points from the outermost blue and the outermost red spectral rays, which is the Aperture edge facing away from the lens is arranged in or - seen in the light exit direction - slightly in front of the lens focal point of the red spectral beam and the other diaphragm edge is arranged in or slightly behind the lens focal point of the blue spectral beam.
  • Such an aperture only lets light fall on the upper half of the projection lens, the red spectral colors of which emerge parallel or converging to the horizontal plane and such light falls on the lower half of the projection lens, whose blue spectral colors emerge parallel or diverging to the horizontal plane.
  • the diaphragm is made in one piece and has a fillet between the two imaging edges.
  • This embodiment has the advantage that the distance between the diaphragm edges is fixed and can only be changed by force.
  • the fillet prevents reflections from occurring on a surface lying between the two edges of the diaphragm.
  • the screen consists of two individual lamellae arranged one behind the other.
  • Such an embodiment has the advantage that by arranging spacers of different thicknesses between the slats, an aperture for different versions of the Projection lenses can be created. It has proven to be advantageous to arrange the diaphragm edges at a distance of approximately 2.5 mm for a glass lens with a focal length of 35 mm.
  • the two diaphragm edges arranged at a distance from one another run in an arc shape with an arc that is open to the light source.
  • the helical light source 3 which runs horizontally and transversely to the optical axis 1 of the reflector 2, is arranged in the inner reflector focal point 4.
  • the rays 5, 6 emerging from the direction of the reflector focal point 4 from the incandescent filament 3 meet in the outer reflector focal point 7 and are directed by the projection lens 8 in such a way that they emerge from the lens parallel to the central axis 1.
  • the light beam is split into its spectral beams.
  • Three of these spectral beams are shown in FIG. 1, namely the red spectral beam 9, the blue spectral beam 11 and the one approximately in the center the green spectral beam 10 running therebetween.
  • the green spectral beam 10 would emerge from the lens approximately parallel to the optical axis 1, while the red spectral beams 9 emerge diverging and the blue spectral beams 11 converging to the central axis 1.
  • the red spectral rays 9 generated by the upper lens half and the blue spectral rays 11 generated by the lower lens half emerge from the headlamp with respect to the road and are visible above the light-dark boundary.
  • the beam 12 generated by such spiral parts, which lie between the inner focal point 4 and the apex 13 of the reflector 2 is not shielded by the diaphragm 14. These rays 12 are so diverging from the optical axis 1 that the blue spectral colors emerge inclined to the road.
  • the beam 16 is shielded from the diaphragm 14, while the beam 15 strikes the lens 8 at such an angle that even the red spectral beam emerges in a manner converging with the optical axis 1.
  • FIG. 2 shows a headlight which differs from the headlight in FIG. 1 only by the aperture 17.
  • the diaphragm 17 has two diaphragm edges 18 and 19 lying one behind the other in the direction of the optical axis.
  • the diaphragm edges are arranged opposite the outer reflector focal point 7 in such a way that all the rays from the lower reflector half whose red spectral beam 9 and all the rays from the upper reflector half whose blue spectral beam 11 emerge from the lens 8 rising relative to the horizontal plane are shielded.
  • FIG. 4 gives an explanation of the exact location of the two diaphragm edges 18, 19.
  • a beam incident on the lens 8 from the outside parallel to the optical axis 1 is broken down into the spectral beams 9, 10 and 11.
  • the point at which the red spectral beam 9 intersects with the optical axis is the lens focal point of the red one Spectral beam, and the point at which the blue spectral beam 11 intersects with the optical axis 1 is the lens focal point of the blue spectral beam.
  • the diaphragm 17 with its diaphragm edges 18, 19 is arranged to run.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

In a projection lamp for motor vehicles, consisting of an ellipsoid reflector, a light source arranged at the internal focal point of the reflector, a projector lens arranged with its focal point at the external reflector focal point, and a stop, which is arranged in the region of the external reflector focal point and whose stop edge is imaged as a bright/dark boundary, the stop has two stop edges, which extend - seen in the direction of the light beam - at a distance from one another, of which one is arranged at the lens focal point of the blue spectral beam, and the other is arranged at the lens focal point of the red spectral beam of a beam impinging from outside on the external edge region of the lens and extending parallel to the optical axis. <IMAGE>

Description

Die Erfindung bezieht sich auf einen abgeblendeten Scheinwerfer für Kraftfahrzeuge mit einem das Licht zu einem Brennfleck bündelnden ellipsoidförmigen Reflektor, einer im inneren Brennpunkt des Reflektors angeordneten Lichtquelle, einer mit ihrem Brennpunkt im äußeren Brennpunkt des Reflektors angeordneten Projektionslinse und einer im Brennfleck angeordneten Blende, deren sich als horizontal verlaufende Hell-Dunkel-Grenze abbildende Kante in Höhe der optischen Achse des Reflektors liegt. Als Lichtquelle wird eine Glühlampe mit einer Glühwendel verwendet. Aufgrund der Größe der Wendel (keine punktförmige Lichtquelle) wird das Licht in dem äußeren Brennpunkt des Reflektors nicht zu einem Brennpunkt sondern zu einem Brennfleck gesammelt. Da die im wesentlichen horizontal verlaufende und als Hell-Dunkel-Grenze abzubildende Blendenkante eine Stufe oder eine Abknickung aufweist, die mitabgebildet werden soll, ist die Sammlung des Lichts durch den Reflektor zu einem Brennfleck und nicht zu einem Brennpunkt vorteilhaft. Bei dem in der DE-OS 24 46 521 dargestellten und beschriebenen Scheinwerfer erzeugt der Reflektor in seinem äußeren Brennpunkt einen Lichtfleck, der einen längeren Abschnitt der im wesentlichen horizontal verlaufenden Blendenkante als Hell-Dunkel-Grenze abbildet. Dieser Lichtfleck wird dadurch vorteilhaft ausgestaltet, daß der Reflektor im horizontalen Schnitt breiter ausgeführt ist als im vertikalen Schnitt. Dadurch wird der Brennfleck in horizontaler Richtung gestreckt, wodurch ein längerer Blendenkantenabschnitt abgebildet werden kann.The invention relates to a dimmed headlight for motor vehicles with an ellipsoidal reflector that bundles the light into a focal spot, a light source arranged in the inner focal point of the reflector, a projection lens arranged with its focal point in the outer focal point of the reflector, and a diaphragm arranged in the focal spot, the two of which are located as a horizontally extending light-dark boundary that lies at the height of the optical axis of the reflector. An incandescent lamp with an incandescent filament is used as the light source. Due to the size of the filament (no point light source), the light in the outer focal point of the reflector is not collected to a focal point but to a focal spot. Since the diaphragm edge, which runs essentially horizontally and is to be imaged as a light-dark boundary, has a step or a kink that is also to be imaged, the collection of the light by the reflector to a focal spot and not to a focal point is advantageous. In the headlamp shown and described in DE-OS 24 46 521, the reflector produces a light spot in its outer focal point, which reflects a longer section of the substantially horizontal diaphragm edge as a light-dark boundary. This light spot is advantageously designed in that the reflector is made wider in the horizontal section than in the vertical section. As a result, the focal spot is stretched in the horizontal direction, whereby a longer aperture edge section can be imaged.

Die bisher bekannten, nach dem Projektionsprinzip arbeitenden Scheinwerfer weisen jedoch den Nachteil auf, daß insbesondere oberhalb der Hell-Dunkel-Grenze durch die Projektionslinse erzeugte Spektralfarben sichtbar werden.However, the previously known headlights working according to the projection principle have the disadvantage that spectral colors generated by the projection lens become visible in particular above the light-dark boundary.

Aufgabe der Erfindung ist es, die über die Hell-Dunkel-Grenze nach oben hinausgehenden Spektralstrahlen abzuschirmen. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Blende zwei - in Lichtaustrittsrichtung gesehen - im Abstand zueinander verlaufende Kanten aufweist und der Abstand der Blendenkanten gleich oder geringfügig größer ist als der Abstand der Brennpunkte von den äußersten blauen und den äußersten roten Spektralstrahlen, wobei die der Linse abgewandte Blendenkante im oder - in Lichtaustrittsrichtung gesehen - geringfügig vor dem Linsenbrennpunkt des roten und die andere Blendenkante im oder geringfügig hinter dem Linsenbrennpunkt des blauen Spektralstrahls angeordnet ist. Eine derartige Blende läßt nur solches Licht auf die obere Hälfte der Projektionslinse fallen, dessen rote Spektralfarben parallel oder konvergierend zur Horizontalebene austreten und solches Licht auf die untere Hälfte der Projektionslinse fallen, dessen blaue Spektralfarben parallel oder divergierend zu der Horizontalebene austreten.The object of the invention is to shield the spectral rays going up beyond the light-dark boundary. This object is achieved in that the diaphragm has two - viewed in the light exit direction - mutually spaced edges and the distance of the diaphragm edges is equal or slightly larger than the distance of the focal points from the outermost blue and the outermost red spectral rays, which is the Aperture edge facing away from the lens is arranged in or - seen in the light exit direction - slightly in front of the lens focal point of the red spectral beam and the other diaphragm edge is arranged in or slightly behind the lens focal point of the blue spectral beam. Such an aperture only lets light fall on the upper half of the projection lens, the red spectral colors of which emerge parallel or converging to the horizontal plane and such light falls on the lower half of the projection lens, whose blue spectral colors emerge parallel or diverging to the horizontal plane.

Bei einer vorteilhaften Ausführungsform der Erfindung ist die Blende einteilig ausgeführt und weist zwischen den beiden Abbildungskanten eine Hohlkehle auf. Diese Ausführungsform hat den Vorteil, daß der Abstand der Blendenkanten fest vorgegeben ist und nur gewaltsam zu ändern ist. Die Hohlkehle verhindert, daß Spiegelungen an einer zwischen den beiden Blendenkanten liegenden Fläche auftreten.In an advantageous embodiment of the invention, the diaphragm is made in one piece and has a fillet between the two imaging edges. This embodiment has the advantage that the distance between the diaphragm edges is fixed and can only be changed by force. The fillet prevents reflections from occurring on a surface lying between the two edges of the diaphragm.

Bei einer anderen Ausführungsform besteht die Blende aus zwei hintereinander angeordneten Einzellamellen. Eine solche Ausführungsform hat den Vorteil, daß durch Anordnung verschieden dicker Zwischenstücke zwischen den Lamellen eine Blende für verschiedene Ausführungen der Projektionslinsen geschaffen werden kann. Es hat sich als vorteilhaft herausgestellt, bei einer Glaslinse mit der Brennweite von 35 mm die Blendenkanten in einem Abstand von etwa 2,5 mm anzuordnen.In another embodiment, the screen consists of two individual lamellae arranged one behind the other. Such an embodiment has the advantage that by arranging spacers of different thicknesses between the slats, an aperture for different versions of the Projection lenses can be created. It has proven to be advantageous to arrange the diaphragm edges at a distance of approximately 2.5 mm for a glass lens with a focal length of 35 mm.

Um die bei einer Linse auftretende Bildfeldwölbung zu korrigieren, verlaufen die beiden im Abstand zueinander angeordneten Blendenkanten bogenförmig mit einem zur Lichtquelle hin offenen Bogen.In order to correct the field curvature that occurs with a lens, the two diaphragm edges arranged at a distance from one another run in an arc shape with an arc that is open to the light source.

Die Erfindung ist in der Zeichnung dargestellt.

  • Figur 1 zeigt den Strahlenverlauf bei einem vertikal geschnittenen Scheinwerfer mit einer bisher bekannten Blende, während
  • Figur 2 den Strahlenverlauf bei einem Scheinwerfer im vertikalen Schnitt mit der erfindungsgemäßen Blende mit Doppelkante darstellt.
  • Figur 3 zeigt den Verlauf der Blendenkanten aus der Ansicht X und
  • Figur 4 zeigt die Aufteilung eines von außen auf die Linse auftreffenden und parallel zur optischen Achse des Scheinwerfers verlaufenden Strahls in einzelne Spektralstrahlen.
The invention is shown in the drawing.
  • Figure 1 shows the beam path in a vertically cut headlight with a previously known aperture, while
  • Figure 2 shows the beam path in a headlamp in vertical section with the diaphragm according to the invention with a double edge.
  • FIG. 3 shows the course of the diaphragm edges from view X and
  • FIG. 4 shows the division of a beam that strikes the lens from the outside and runs parallel to the optical axis of the headlight into individual spectral beams.

In Figur 1 ist die horizontal und quer zur optischen Achse 1 des Reflektors 2 verlaufende wendelförmige Lichtquelle 3 im inneren Reflektorbrennpunkt 4 angeordnet. Die aus Richtung des Reflektorbrennpunktes 4 aus der Glühwendel 3 austretenden Strahlen 5, 6 treffen sich in dem äußeren Reflektorbrennpunkt 7 und werden von der Projektionslinse 8 so gerichtet, daß sie zur Mittelachse 1 parallelverlaufend aus der Linse austreten. Beim Durchgang der Linse wird der Lichtstrahl in seine Spektralstrahlen aufgeteilt. In der Figur 1 sind drei dieser Spektralstrahlen dargestellt, und zwar der rote Spektralstrahl 9, der blaue Spektralstrahl 11 und der etwa mittig hierzwischen verlaufende grüne Spektralstrahl 10. Bei dem Scheinwerfer gemäß Figur 1 würde der grüne Spektralstrahl 10 in etwa parallel zur optischen Achse 1 aus der Linse ausfallen, während die roten Spektralstrahlen 9 divergierend und die blauen Spektralstrahlen 11 konvergierend zur Mittelachse 1 austreten. Das bedeutet, daß in den Randbereichen der Linse 8 die durch die obere Linsenhälfte erzeugten roten Spektralstrahlen 9 und die von der unteren Linsenhälfte erzeugten blauen Spektralstrahlen 11 in bezug auf die Fahrbahn ansteigend aus dem Scheinwerfer austreten und oberhalb der Hell-Dunkel-Grenze sichtbar sind. Der von solchen Wendelteilen erzeugte Strahl 12, die zwischen dem inneren Brennpunkt 4 und dem Scheitelpunkt 13 des Reflektors 2 liegen, wird nicht von der Blende 14 abgeschirmt. Diese Strahlen 12 fallen so stark divergierend zur optischen Achse 1 aus, daß auch die blauen Spektralfarben geneigt zur Fahrbahn austreten. Von den dargestellten Strahlen 15 und 16 wird der Strahl 16 von der Blende 14 abgeschirmt, während der Strahl 15 in einem solchen Winkel auf die Linse 8 auftrifft, daß selbst der rote Spektralstrahl noch konvergierend zu der optischen Achse 1 austritt.In FIG. 1, the helical light source 3, which runs horizontally and transversely to the optical axis 1 of the reflector 2, is arranged in the inner reflector focal point 4. The rays 5, 6 emerging from the direction of the reflector focal point 4 from the incandescent filament 3 meet in the outer reflector focal point 7 and are directed by the projection lens 8 in such a way that they emerge from the lens parallel to the central axis 1. As the lens passes, the light beam is split into its spectral beams. Three of these spectral beams are shown in FIG. 1, namely the red spectral beam 9, the blue spectral beam 11 and the one approximately in the center the green spectral beam 10 running therebetween. In the headlamp according to FIG. 1, the green spectral beam 10 would emerge from the lens approximately parallel to the optical axis 1, while the red spectral beams 9 emerge diverging and the blue spectral beams 11 converging to the central axis 1. This means that in the edge regions of the lens 8, the red spectral rays 9 generated by the upper lens half and the blue spectral rays 11 generated by the lower lens half emerge from the headlamp with respect to the road and are visible above the light-dark boundary. The beam 12 generated by such spiral parts, which lie between the inner focal point 4 and the apex 13 of the reflector 2, is not shielded by the diaphragm 14. These rays 12 are so diverging from the optical axis 1 that the blue spectral colors emerge inclined to the road. Of the beams 15 and 16 shown, the beam 16 is shielded from the diaphragm 14, while the beam 15 strikes the lens 8 at such an angle that even the red spectral beam emerges in a manner converging with the optical axis 1.

In Figur 2 ist ein Scheinwerfer dargestellt, der sich gegenüber dem Scheinwerfer in Figur 1 lediglich durch die Blende 17 unterscheidet. Die Blende 17 weist zwei in Richtung der optischen Achse hintereinanderliegende Blendenkanten 18 und 19 auf. Die Blendenkanten sind so gegenüber dem äußeren Reflektorbrennpunkt 7 angeordnet, daß alle die Strahlen aus der unteren Reflektorhälfte abgeschirmt werden, deren roter Spektralstrahl 9 und alle die Strahlen aus der oberen Reflektorhälfte, deren blauer Spektralstrahl 11 gegenüber der Horizontalebene ansteigend aus der Linse 8 austreten. Zur genauen Festlegung der Lagepunkte der beiden Blendenkanten 18, 19 gibt die Figur 4 eine Erläuterung. Ein parallel zur optischen Achse 1 von außen auf die Linse 8 auftreffender Strahl wird in die Spektralstrahlen 9, 10 und 11 zerlegt. Der Punkt, in dem sich der rote Spektralstrahl 9 mit der optischen Achse schneidet, ist der Linsenbrennpunkt des roten Spektralstrahls, und der Punkt, in dem sich der blaue Spektralstrahl 11 mit der optischen Achse 1 schneidet, ist der Linsenbrennpunkt des blauen Spektralstrahls. In jeweils diesen Schnittpunkten ist die Blende 17 mit ihren Blendenkanten 18, 19 verlaufend angeordnet.FIG. 2 shows a headlight which differs from the headlight in FIG. 1 only by the aperture 17. The diaphragm 17 has two diaphragm edges 18 and 19 lying one behind the other in the direction of the optical axis. The diaphragm edges are arranged opposite the outer reflector focal point 7 in such a way that all the rays from the lower reflector half whose red spectral beam 9 and all the rays from the upper reflector half whose blue spectral beam 11 emerge from the lens 8 rising relative to the horizontal plane are shielded. FIG. 4 gives an explanation of the exact location of the two diaphragm edges 18, 19. A beam incident on the lens 8 from the outside parallel to the optical axis 1 is broken down into the spectral beams 9, 10 and 11. The point at which the red spectral beam 9 intersects with the optical axis is the lens focal point of the red one Spectral beam, and the point at which the blue spectral beam 11 intersects with the optical axis 1 is the lens focal point of the blue spectral beam. In each of these intersections, the diaphragm 17 with its diaphragm edges 18, 19 is arranged to run.

Aus Figur 3 ist ersichtlich, daß die Blendenkanten 18 und 19 in einem zur Linse 8 offenen Bogen verlaufen. Dies ist notwendig, weil die Brennpunkte der schräg gerichteten Lichtstrahlen auf einer gewölbten Schale liegen. Für jeden Punkt der Doppelblende muß die Bedingung erfüllt werden, daß die vordere Blende im Brennpunkt des blauen Lichtes (ca. 404 µm), die hintere Blende im Brennpunkt des roten Lichtes (ca. 720 jum) liegt.From Figure 3 it can be seen that the diaphragm edges 18 and 19 run in an arc open to the lens 8. This is necessary because the focal points of the obliquely directed light rays lie on a curved bowl. For each point of the double diaphragm, the condition must be met that the front diaphragm lies in the focal point of the blue light (approx. 404 µm), the rear diaphragm lies in the focal point of the red light (approx. 720 jum).

Claims (5)

1. Abgeblendeter Scheinwerfer für Kraftfahrzeuge mit einem das Licht zu einem Brennfleck bündelnden ellipsoidförmigen Reflektor, einer im inneren Brennpunkt des Reflektors angeordneten Lichtquelle, einer mit ihrem Brennpunkt im äußeren Brennpunkt des Reflektors angeordneten Projektionslinse und einer im Brennfleck angeordneten Blende, deren sich als horizontal verlaufende Hell-Dunkel-Grenze abbildende Kante in Höhe der optischen Achse des Reflektors liegt, dadurch gekennzeichnet, daß die Blende (17) in Lichtaustrittsrichtung gesehen zwei im Abstand zueinander verlaufende Kanten (18, 19) aufweist und der Abstand der Blendenkanten (18, 19) zueinander gleich oder geringfügig größer ist als der Abstand der Brennpunkte von den äußersten blauen (11) und den äußersten roten (9) Spektralstrahlen, wobei die der Linse (8) abgewandte Blendenkante (18) im oder - in Lichtstrahlrichtung gesehen - geringfügig vor dem Linsenbrennpunkt des roten (9) und die andere Blendenkante (19) im oder geringfügig hinter dem Linsenbrennpunkt des blauen (11) Spektralstrahls angeordnet ist.1.Dimmed headlights for motor vehicles with an ellipsoidal reflector that bundles the light into a focal spot, a light source arranged in the inner focal point of the reflector, a projection lens arranged with its focal point in the outer focal point of the reflector, and an aperture arranged in the focal spot, the brightness of which extends as a horizontal -Edge forming the dark boundary lies at the level of the optical axis of the reflector, characterized in that the diaphragm (17), viewed in the light exit direction, has two edges (18, 19) running at a distance from one another and the distance between the diaphragm edges (18, 19) is equal to or slightly larger than the distance of the focal points from the outermost blue (11) and outermost red (9) spectral rays, the diaphragm edge (18) facing away from the lens (8) in or - viewed in the direction of the light beam - slightly before the lens focal point of the red (9) and the other diaphragm edge (19) in or slightly is arranged behind the lens focal point of the blue (11) spectral beam. 2. Scheinwerfer nach Anspruch 1, dadurch gekennzeichnet, daß die Blende (17) einteilig ausgeführt ist und zwischen den beiden Abbildungskanten (18, 19) eine Hohlkehle aufweist.2. Headlight according to claim 1, characterized in that the diaphragm (17) is made in one piece and has a fillet between the two imaging edges (18, 19). 3. Scheinwerfer nach Anspruch 1, dadurch gekennzeichnet, daß die Blende (17) aus zwei hintereinander angeordneten einzelnen Lamellen besteht.3. Headlight according to claim 1, characterized in that the diaphragm (17) consists of two individual slats arranged one behind the other. 4. Scheinwerfer nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Abstand der Blendenkanten (18, 1'9) bei einer Linse aus Glas mit der Brennweite von 35 mm etwa 2,5 mm beträgt.4. Headlight according to one of the preceding claims, characterized in that the distance between the diaphragm edges (18, 1'9) for a lens made of glass with a focal length of 35 mm is approximately 2.5 mm. 5. Scheinwerfer nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Blendenkanten (18, 19) bogenförmig mit einem zur Linse (8) hin offenen Bogen verläuft.5. Headlight according to one of the preceding claims, characterized in that the diaphragm edges (18, 19) runs in an arc shape with an open towards the lens (8).
EP83109995A 1982-11-11 1983-10-06 Non-dazzling headlamp for motor vehicles Withdrawn EP0108915A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823241713 DE3241713A1 (en) 1982-11-11 1982-11-11 DIMMED HEADLIGHT FOR MOTOR VEHICLES
DE3241713 1982-11-11

Publications (1)

Publication Number Publication Date
EP0108915A1 true EP0108915A1 (en) 1984-05-23

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EP83109995A Withdrawn EP0108915A1 (en) 1982-11-11 1983-10-06 Non-dazzling headlamp for motor vehicles

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EP (1) EP0108915A1 (en)
JP (1) JPS5999601A (en)
AU (1) AU2070083A (en)
DD (1) DD213981A5 (en)
DE (1) DE3241713A1 (en)
ES (1) ES284463Y (en)

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FR2754039A1 (en) * 1996-10-02 1998-04-03 Valeo Vision ELLIPTICAL GENERATOR PROJECTOR FOR A MOTOR VEHICLE HAVING AN IMPROVED CUTTING COVER, AND METHOD OF MANUFACTURING THE CACHE
EP1584862A1 (en) * 2004-04-09 2005-10-12 Valeo Vision Headlight for low beam with dimmer screen
EP1170547B2 (en) † 2000-07-07 2011-12-14 Valeo Vision Elliptical-type headlight for road lighting with improved low photometry
AT516836B1 (en) * 2015-04-10 2016-09-15 Zizala Lichtsysteme Gmbh Lighting device with beam diaphragm and motor vehicle headlights
EP2244007B1 (en) 2009-04-24 2017-03-15 Valeo Vision Optical device for an automobile
WO2018069235A1 (en) * 2016-10-14 2018-04-19 Covestro Deutschland Ag Device for reducing color fringing
CN108139061A (en) * 2015-10-23 2018-06-08 Zkw集团有限责任公司 For the micro projection optical module for light distribution of the generation without image error of motor-driven vehicle headlight adapter
DE102005005562B4 (en) * 2004-03-02 2021-04-01 Zkw Group Gmbh Vehicle headlights for cornering lights
EP4390220A4 (en) * 2021-08-20 2024-12-25 Koito Manufacturing Co., Ltd. DRAWING LAMP

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DE3516812A1 (en) * 1985-05-10 1986-11-13 Hella KG Hueck & Co, 4780 Lippstadt Dimmed vehicle headlights
DE3525041C2 (en) * 1985-07-13 1994-06-16 Bosch Gmbh Robert Low beam or fog lights for motor vehicles
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JP2691712B2 (en) * 1987-06-17 1997-12-17 日産自動車 株式会社 Projector type vehicle headlight
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DE4141717A1 (en) * 1991-12-18 1993-07-01 Bayerische Motoren Werke Ag Vehicle headlamp with enhanced illumination when dipped - has filter to remove UV B and to project UV A beyond normal light spread to illuminate fluorescent road markings
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DE102013106569B4 (en) * 2013-06-24 2024-03-28 HELLA GmbH & Co. KGaA Headlights for vehicles with a rotatable aperture shaft that has correction edges to compensate for aberrations in a lens

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FR2754039A1 (en) * 1996-10-02 1998-04-03 Valeo Vision ELLIPTICAL GENERATOR PROJECTOR FOR A MOTOR VEHICLE HAVING AN IMPROVED CUTTING COVER, AND METHOD OF MANUFACTURING THE CACHE
EP1170547B2 (en) † 2000-07-07 2011-12-14 Valeo Vision Elliptical-type headlight for road lighting with improved low photometry
DE102005005562B4 (en) * 2004-03-02 2021-04-01 Zkw Group Gmbh Vehicle headlights for cornering lights
EP1584862A1 (en) * 2004-04-09 2005-10-12 Valeo Vision Headlight for low beam with dimmer screen
FR2868828A1 (en) * 2004-04-09 2005-10-14 Valeo Vision Sa LUMINOUS PROJECTOR FOR A MOTOR VEHICLE WITH A CUT-OFF BEAM, AND A CACHE ASSEMBLY FOR SUCH A PROJECTOR
US7347602B2 (en) 2004-04-09 2008-03-25 Valeo Vision Headlight for a motor vehicle with a cut-off beam, and a shield assembly for such a headlight
CN100559068C (en) * 2004-04-09 2009-11-11 瓦雷欧·维申公司 Be used for the head lamp of motor vehicle and the protective acoustic cover assembly of this head lamp
EP2244007B1 (en) 2009-04-24 2017-03-15 Valeo Vision Optical device for an automobile
AT516836A4 (en) * 2015-04-10 2016-09-15 Zizala Lichtsysteme Gmbh Lighting device with beam diaphragm and motor vehicle headlights
AT516836B1 (en) * 2015-04-10 2016-09-15 Zizala Lichtsysteme Gmbh Lighting device with beam diaphragm and motor vehicle headlights
CN108139061A (en) * 2015-10-23 2018-06-08 Zkw集团有限责任公司 For the micro projection optical module for light distribution of the generation without image error of motor-driven vehicle headlight adapter
CN108139061B (en) * 2015-10-23 2020-07-10 Zkw集团有限责任公司 Miniature projection light module for a motor vehicle headlight for generating an image-error-free light distribution
WO2018069235A1 (en) * 2016-10-14 2018-04-19 Covestro Deutschland Ag Device for reducing color fringing
CN109996990A (en) * 2016-10-14 2019-07-09 科思创德国股份有限公司 For reducing the device of color fringe
US10619815B2 (en) 2016-10-14 2020-04-14 Covestro Deutschland Ag Device for reducing color fringing
CN109996990B (en) * 2016-10-14 2021-12-28 科思创德国股份有限公司 Device for reducing color fringing
EP4390220A4 (en) * 2021-08-20 2024-12-25 Koito Manufacturing Co., Ltd. DRAWING LAMP

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Publication number Publication date
AU2070083A (en) 1984-05-17
JPS5999601A (en) 1984-06-08
ES284463U (en) 1985-06-01
ES284463Y (en) 1986-01-16
DE3241713A1 (en) 1984-05-17
DD213981A5 (en) 1984-09-26

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