EP2472176B1 - Beleuchtungs- und/oder signalisierungsvorrichtung, insbesondere für kraftfahrzeug - Google Patents

Beleuchtungs- und/oder signalisierungsvorrichtung, insbesondere für kraftfahrzeug Download PDF

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Publication number
EP2472176B1
EP2472176B1 EP11193279.4A EP11193279A EP2472176B1 EP 2472176 B1 EP2472176 B1 EP 2472176B1 EP 11193279 A EP11193279 A EP 11193279A EP 2472176 B1 EP2472176 B1 EP 2472176B1
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European Patent Office
Prior art keywords
cut
branch
elementary
optical axis
sharp
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EP11193279.4A
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English (en)
French (fr)
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EP2472176A3 (de
EP2472176A2 (de
Inventor
Pierre Albou
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Valeo Vision SAS
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Valeo Vision SAS
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Publication of EP2472176A3 publication Critical patent/EP2472176A3/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12—Combinations of only three kinds of elements
    • 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
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • 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
    • 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
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F21W2102/16—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having blurred cut-off lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lighting and/or signaling device, in particular for a motor vehicle.
  • such a lighting and/or signaling device can be in the form of a motor vehicle light projector, with the aim of producing, for example, a code beam.
  • a code beam For such an application, it will be understood that in order to avoid dazzling a motorist arriving in front, it is essential that the projection onto the road of the light beam generated by the lighting and/or signaling device does not exceed one predetermined limit.
  • An already known lighting and/or signaling device is arranged to produce a wide light beam which has a cutoff (namely the transition between an area illuminated by the beam and an area not illuminated by said beam, these areas being arranged in either side of the cut, this transition occurring over a small area) which is both flat and clear.
  • this type of device presents a technical limitation in the sense that the cutoff becomes blurred (by blurred cutoff we mean a luminous transition between the illuminated zone and the unlit zone which occurs over an area greater than the extent of a clean cut) on the edges, which is not desirable for use on a motor vehicle.
  • the flat cut-off portion of the second elementary beam is found in the first elementary beam and, as this flat cut-off portion is sharp, it is visible even while being embedded in the first elementary beam. This is also not desirable for reasons of homogeneity of the overall beam.
  • the object of the present invention is therefore to provide a lighting and/or signaling device which produces a cut-off light beam whose forward projection (in particular on a screen perpendicular to the optical axis of said device) presents a sufficiently clear delimitation which does not extend onto the rest of the road, so that motorists arriving in front are not dazzled, while ensuring that the light intensity distribution of the beam thus produced is otherwise homogeneous.
  • Another object of the present invention is to provide a lighting and/or signaling device whose design and production are both simple and economical.
  • a “blur” is generated at the level of the cutoff branch of the first elementary beam, this blur being hidden in the second elementary beam, so that the homogeneity of the overall beam is not affected. disturbed.
  • the cutoff of the beam may include two branches making a non-zero angle between them, preferably an angle substantially equal to 15°, said branches being sharp.
  • the optical return elements are made up of non-imaging optical elements.
  • the optical return element is made up of an optical imaging element such as a lens.
  • the cutting edge of the folder has, on the side intended to produce the second branch, a main portion, the end of which is in the extension of the side of the cutting edge intended to produce the first branch, and a peripheral portion , the end of which makes an angle with said main portion corresponding to the angle of inclination of said first branch.
  • this part of the device capable of producing the first elementary beam is rotated by an angle of rotation of opposite sign and of absolute value substantially equal to the angle of inclination of the second branch.
  • the projection on a screen perpendicular to the optical axis of the cut-off of the second elementary beam is more extensive than the projection on this same screen of the cut-off of the first elementary beam.
  • the diagram of the figure 1 corresponds to a code beam produced by a lighting device of the prior art, as described for example in the document US 6,966,675 .
  • This device which has an optical axis Z-Z', produces a light beam whose projection on a screen (XX';Y-Y') perpendicular to the optical axis ZZ' of the device has a V-shaped cutting edge, this cutting edge comprising a first branch, located at a side of the screen and which is parallel to the horizontal XX', and a second branch, on the other side of the screen and which rises above the horizontal XX' at a non- zero, approximately equal to 15°.
  • the code beam produced by this lighting device of the prior art comprises a central part 1 with more intense lighting limited by a V-shaped cutoff edge 2 whose first branch 2A is substantially horizontal, i.e. i.e. coincident with the axis X-X' of the horizontal plane, and the second branch 2B rises at an angle ⁇ relative to the horizontal, that is to say above this axis X-X' of the horizontal plane.
  • the code beam further comprises a wider part 3, which extends to the right and left of the central part 1.
  • the wide part 3 admits a flat horizontal cutoff 4, located at the same level as the first branch 2A (horizontal) of cutoff 2 in V.
  • the lighting in part 3 is less intense than in part 1, but sufficient to illuminate the side areas.
  • the V cut 2 of the central part 1 of the light beam produced by this type of lighting device has the disadvantage of being blurred when moving away laterally from the optical axis, due to the presence of geometric aberrations. These blurred areas are shown on the figure 1 , for the two branches 2A and 2B of cutoff 2, respectively in 5A and 5B. Due to this blur, a luminous flux rises beyond the cut-off edge 2 in V, which risks at least partially dazzling motorists arriving in front of the vehicle equipped with this device.
  • the invention proposes to eliminate these blurred zones at the cutoff edge 2 of the beam produced by the lighting and/or signaling device.
  • the orthogonal projection on a vertical plane of such a beam, produced by a lighting and/or signaling device according to the invention, is shown on the figure 2 .
  • This beam includes a V-shaped cutting edge 2, the first branch 2A of which (on the left on the figure 2 ) is substantially horizontal and whose second branch 2B (to the right on the figure 2 ) rises at an angle ⁇ close to 15° on the horizontal, these two branches being clear.
  • the portion 6 located under the second branch 2B is blurred.
  • the value of this angle ⁇ is not limiting and can generally be between 10° and 60°.
  • a first part of the lighting device and/or or signaling is schematically represented on the figures 3 And 4 .
  • This first part M comprises a light source S, constituted for example by at least one incandescent lamp, a Xenon lamp or advantageously by at least one light-emitting diode, comprising plane emitters which are located on a single and same plane support in order to facilitate the manufacture of the lighting device and have only one radiator.
  • This source S is arranged so as to illuminate towards the front and upwards.
  • front and rear are to be understood by considering the normal direction of forward movement of the vehicle equipped with the first part M of the lighting device according to the invention.
  • a collector mirror R1 is placed in front of the source S and is turned towards the rear.
  • This mirror R1 comprises a first focus F1 at which (or in the vicinity of which) is placed the center of the source S which illuminates towards the mirror R1, as well as a second focus F2 located on the optical axis ZZ' of the first part M of the device.
  • This first part M also includes a folder P, the upper edge P2 of which constitutes the cutting edge of the beam and passes through (or in the vicinity of) the second focus F2 of the collecting mirror R1.
  • a deflection mirror R2 is located essentially below the collector mirror R1.
  • the reflecting surface of mirror R2 faces forward to produce the cut-off output beam.
  • the deflection mirror R2 admits a focal point coincident with (or in the vicinity of) the second focal point F2 of the collecting mirror R1.
  • the optical axis of the mirror R2 coincides with the optical axis Z-Z' of the device.
  • the edge of the cutoff P2 of the folder P also passes through the focus of the mirror R2 (or in its vicinity).
  • a glass (not shown), made of transparent material, can be placed in front of the elements of the first part M of the lighting device.
  • the surfaces of the collector mirror R1, of the folder P and of the return mirror R2 are conjugate surfaces.
  • This conjugation may consist in particular in that the collection mirror R1 is designed to transform a spherical wave surface coming from the center of the source S into an arbitrary wave surface reducible to a two-dimensional line P1-P2-P3 .
  • This solution allows an analytical calculation and offers a parameter which facilitates the horizontal spreading corresponding to the major radius of the torus.
  • the deflection mirror R2 is determined to transform this wave surface toric into a cylindrical wave surface with a vertical axis admitting any curve for a straight section.
  • This curve which characterizes the wave emerging from the first part M of the device, is chosen so as to compensate at least in part the horizontal inclination of the plane of the source S relative to the axis ZZ' of the vehicle, and makes it possible to adjust the horizontal spread of the beam.
  • This first part M thus makes it possible to create a wide outgoing beam with a clear cut-off line by using the folder with the line P1-P2-P3 as the cut-off edge, despite the horizontal inclination of the source S.
  • a first side of the folder P1 (on the right on the Figure 3 ) is substantially straight or has a slight curvature
  • the second side (on the left on the Figure 3 ) comprises a first portion P2, close to the center and which extends the right side P1, and finally a zone P4 (or cutting edge portion) which forms a determined angle of inclination with the extension P3 (intangible) of the portions P1 and P2, for example 15°.
  • the width D of the portion P2 is chosen as small as possible such that the rays passing below the cutoff portion P4 are not returned to the opposite side of the axis ZZ' to infinity. To determine the value of this width, it is possible to calculate the normal at any point of the collector reflector by exploiting the following property: a ray coming from the center of the source S and reaching a point of the collector R1 is returned towards the point of the collector folder edge P such that the plane normal to the folder edge at this second point contains the first point.
  • the normal to the collector R1 at the first point is the bisector of the line connecting the first and the second points and of the line passing through the first point and the center of the source S.
  • the abscissa such as the ends at infinity of the largest images and the central directions at the ends of these images at the edge of the folder are on the same side (left or right) of the vertical plane containing the optical axis as the point of the folder. edge of the folder considered are those for which the folder can be cut in order to bring up light without creating glare.
  • FIG. 4A represents the first part M of the device in a section at the level of the portion PA of the cutting edge of the folder P, this portion PA being located at the level of the portions P1 and P2.
  • the ray i1 coming from a point of the source located above its center (and therefore from the first focus F1 of the mirror R1, itself located at the center of the source S), is reflected along a ray which strikes the folder PA above its lower edge, and therefore above the hearth F2. This ray is then reflected along a ray which is itself reflected by the mirror R2 along a descending ray.
  • FIG. 4B represents the first part M of the device in a section at the level of the portion PB of the cutting edge of the folder P, this portion PB being located at the level of the portion P3, itself located in the inclination of the cutting edge of the folder P of an angle ⁇ .
  • This PB portion is distinguished in particular from the PA portion (shown in dotted lines on the figure 4B ) by a different length and possibly by a different angle of inclination relative to the mirror R1, for example lower.
  • Ray i4 coming from the same point as ray i1 of the Figure 4A , is reflected along a ray which, instead of hitting the folder PB above its lower edge as does the ray i1, tangents to said lower edge of the folder PB, without being deviated and is reflected by the mirror R2 along a ascending ray, which corresponds to the cut-off edge 11A of the beam 10 thus produced, which rises above the horizontal.
  • Rays i5 and i6 respectively emitted from the same points as rays i2 and i3 of the figure 4A (that is to say respectively from the center of the source S and from a point of the source S located below its center), are reflected by the mirror R1 along rays which pass below the lower edge of the PA folder. These rays are then reflected by the mirror R2 along respectively horizontal and descending rays.
  • the light beam 10 the projection of which on a plane perpendicular to the optical axis ZZ' is represented on the figure 5 , is thus obtained.
  • This elementary beam 10 has a cutting edge of which a first branch 11A rises at an angle - ⁇ relative to the horizontal and a second branch 11B which is substantially horizontal. Furthermore, the area located under branch 11A is blurred when moving away from the optical axis Z-Z'.
  • the first branch 21A provides below it a blurred zone 22 located entirely below the horizontal.
  • the second branch 21B provides below it a zone 23 intended to contain at least partially another elementary light beam (the beam 30 of the Figure 7 described below).
  • This beam 20 of the Figure 6 superimposed on a beam 30 with flat cutoff such as that of the Figure 7 , whose cut 31 has two branches parallel to the horizontal axis, a first branch 31A (on the left on the Figure 7 ) being clear and the second branch 31B (on the right on the Figure 7 ) being blurred, makes it possible to obtain the resulting beam 40 of the figure 8 .
  • the second part of the lighting and/or signaling device according to the invention which makes it possible to obtain the elementary beam 30 with flat cutoff intended to be superimposed on the elementary beam 20 produced by the first part M of this same device, is a type of module known to those skilled in the art.
  • one way of producing this second part is to use the same system as the first part M which produces the elementary beam 20, but by inverting left and right and by not rotating it by a determined angle around the optical axis Z-Z'.
  • the resulting beam 40 of the figure 8 has a cutoff 41 of which the two branches 41A and 41B are clear, while the beam portions 42 and 43, located respectively under the branches 41A and 41B, are blurred.
  • a beam whose V cut is clear and the light intensity under the cut is homogeneous and without discontinuity, which makes it possible to illuminate as far as possible without exceeding the dazzling limits of motorists arriving in front while ensuring a certain visual comfort.
  • the two parts of the device (the first part M of the figures 4 And 5 , and the second part which produces the beam of the Figure 7 ) which made it possible to obtain the beam of the figure 8 may not consist of any optical imaging element.
  • these two parts can be symmetrical to each other, the first part being rotated by a determined angle relative to the optical axis ZZ' of the device and not the second part.
  • a similar result can be obtained by using an optical projection system such as a non-imaging lens. More precisely, as illustrated in the Figure 9 , it is possible to produce the first part M of the lighting and/or signaling device according to the invention from a concave reflector R1, a light source (not shown) arranged in the concavity of the reflector R1 to illuminate, and a lens L located in front of the reflector R1 and the light source.
  • a concave reflector R1 a light source (not shown) arranged in the concavity of the reflector R1 to illuminate
  • a lens L located in front of the reflector R1 and the light source.
  • the reflector R1 is associated with a folder P, the upper face of which is reflective to fold the beam coming from the reflector, and has a front end edge capable of forming the break in the beam produced, this folder P being able to present for example a form similar to the folder described above and shown in figures 3 And 4 .
  • the lens L is also determined to give from a point on the edge of the folder P, for all the rays contained in the plane perpendicular to the front edge of said folder P at the point considered, an image at the 'infinite in this plane.
  • a device whose first part, with a V-cut, would produce a beam, part of which would go up to the right of the optical axis, without exceeding the V-cut. , and which would not be rotated around its optical axis.
  • 75R photometric value defined at the level of a screen perpendicular to the optical axis of the device and located 25 meters from said device, at a point on this screen located 25 centimeters below and 50 centimeters to the right of the optical axis
  • 75R photometric value defined at the level of a screen perpendicular to the optical axis of the device and located 25 meters from said device, at a point on this screen located 25 centimeters below and 50 centimeters to the right of the optical axis
  • Such a V-cut module can for example produce a beam as shown in the Figure 10 , the central part 50 of which has a cutting edge 51 which comprises, on one side (on the right on the Figure 10 ), a branch 51B, clear, which rises by an angle ⁇ substantially equal to 15° above the horizontal, and, on the other side (to the left on the Figure 10 ), a branch 51A, also clear and horizontal.
  • This beam 50 superimposed on a beam 30 with flat cutoff such as that of the Figure 7 , makes it possible to obtain the resulting beam 60 of the Figure 11 , which has a cut 61 whose two branches 61A and 61B are clear, while the beam portion 62, located under the branch 61B, is blurred.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (8)

  1. Beleuchtungs- und/oder Signalisierungsvorrichtung, insbesondere eines Kraftfahrzeugs, die eine optische Achse (Z-Z') hat und eingerichtet ist, um zu erzeugen:
    - einen Strahl (50), dessen Mittelteil auf einem Schirm lotrecht zur optischen Achse (Z-Z') eine Hell-Dunkel-Grenze (51) hat,
    - einen zweiten Elementarstrahl (30), der auf einem Schirm lotrecht zur optischen Achse (Z-Z') eine flache Hell-Dunkel-Grenze (31) hat, die einen ersten unscharfen Zweig (31B) und einen zweiten scharfen Zweig (31A) aufweist,
    dadurch gekennzeichnet, dass:
    - der unscharfe Zweig (31B) der Hell-Dunkel-Grenze (31) des zweiten Elementarstrahls (30) zumindest teilweise im Strahl (50) enthalten ist;
    - der Strahl (50) eine Hell-Dunkel-Grenze (51) hat, die mindestens einen waagrechten scharfen Zweig (51A) hat, welcher scharfe Zweig (51A) im Wesentlichen über mindestens einen Teil seiner Länge mit dem scharfen Zweig (31A) der Hell-Dunkel-Grenze (31) des zweiten Elementarstrahls (30) zusammenfällt.
  2. Beleuchtungs- und/oder Signalisierungsvorrichtung, insbesondere eines Kraftfahrzeugs, die eine optische Achse (Z-Z') hat und eingerichtet ist, um zu erzeugen:
    - einen ersten Elementarstrahl (20), der auf einem Schirm lotrecht zur optischen Achse (Z-Z) eine Hell-Dunkel-Grenze (21) hat, die einen ersten unscharfen Zweig (21A) und einen zweiten scharfen Zweig (21B) aufweist, und
    - einen zweiten Elementarstrahl (30), der vorzugsweise auf einem Schirm lotrecht zur optischen Achse (Z-Z') eine Hell-Dunkel-Grenze (31) hat,
    dadurch gekennzeichnet, dass:
    - der unscharfe Zweig (21A) der Hell-Dunkel-Grenze (21) des ersten Elementarstrahls (20) zumindest teilweise im zweiten Elementarstrahl (30) enthalten ist;
    - der zweite Elementarstrahl (30) eine Hell-Dunkel-Grenze (31) hat, die einen ersten scharfen Zweig (31A) und einen zweiten unscharfen Zweig (31B) aufweist, wobei die scharfen Zweige (21B, 31A) der ersten und zweiten Elementarstrahlen zwischen sich einen Winkel ungleich Null formen, wobei der unscharfe Zweig der Hell-Dunkel-Grenze eines der Elementarstrahlen (20, 30) zumindest teilweise im anderen der Strahlen enthalten ist.
  3. Vorrichtung nach Anspruch 1, wobei die Hell-Dunkel-Grenze (51) des Strahls (50) zwei Zweige aufweist, die zwischen sich einen Winkel ungleich Null bilden, der insbesondere zwischen 10° und 60° liegt, vorzugsweise einen Winkel im Wesentlichen gleich 15°, wobei die Zweige scharf sind.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei der Teil (M) der Vorrichtung, der fähig ist, den ersten Elementarstrahl (20) oder den Strahl (50) zu erzeugen, enthält:
    - eine Lichtquelle (S),
    - ein optisches Sammelelement (R1), das eingerichtet ist, das von der Quelle stammende Licht zu sammeln,
    - eine Biegefläche (P), die eine reflektierende Fläche und eine Hell-Dunkel-Kante (P1, P2, P4) hat, um nur einen Teil des vom optischen Sammelelement kommenden Strahls zu empfangen und um so einen Lichtstrahl mit Hell-Dunkel-Grenze (20) zu erzeugen, und
    - ein optisches Umlenkelement (R2; L), das eingerichtet ist, um den Lichtstrahl mit Hell-Dunkel-Kante (20 ;50) nach vorne zu produzieren.
  5. Vorrichtung nach Anspruch 4, wobei das optische Umlenkelement (R2) ein nicht-abbildendes Element ist.
  6. Vorrichtung nach einem der Ansprüche 4 bis 5, wobei die Hell-Dunkel-Kante (P1, P2, P3) der Biegefläche (P) auf der zur Erzeugung des zweiten Zweigs (21B) bestimmten Seite einen Hauptabschnitt (P2), dessen Ende in der Verlängerung (P1) auf der Seite der Hell-Dunkel-Kante ist, die dazu bestimmt ist, den ersten Zweig (21A) zu erzeugen, und einen Umfangsabschnitt (P4) hat, dessen Ende mit dem Hauptabschnitt (P2) einen Winkel bildet, der dem Neigungswinkel (α) des ersten Zweigs entspricht.
  7. Vorrichtung nach dem vorhergehenden Anspruch, wobei der Teil der Vorrichtung, der fähig ist, den ersten Elementarstrahl (20) zu erzeugen, um einen Drehwinkel (-α) mit umgekehrtem Vorzeichen und mit einem Absolutwert im Wesentlichen gleich dem Neigungswinkel (α) des zweiten Zweigs (21B) gedreht ist.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die Projektion auf einen Schirm lotrecht zur optischen Achse (Z-Z') der Hell-Dunkel-Grenze (31) des zweiten Elementarstrahls (30) weitreichender ist als die Projektion der Hell-Dunkel-Grenze (21) des ersten Elementarstrahls (20) auf diesen gleichen Schirm.
EP11193279.4A 2011-01-03 2011-12-13 Beleuchtungs- und/oder signalisierungsvorrichtung, insbesondere für kraftfahrzeug Active EP2472176B1 (de)

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Application Number Priority Date Filing Date Title
FR1150008A FR2970061B1 (fr) 2011-01-03 2011-01-03 Dispositif d'eclairage et/ou de signalisation, notamment pour vehicule automobile

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EP2472176A2 EP2472176A2 (de) 2012-07-04
EP2472176A3 EP2472176A3 (de) 2017-10-04
EP2472176B1 true EP2472176B1 (de) 2023-11-22

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KR102004686B1 (ko) * 2013-04-08 2019-07-29 현대모비스 주식회사 컷오프 라인을 구현하는 멀티 어레이 엘이디 칩 및 이를 구비하는 헤드 램프
DE102014226646A1 (de) * 2014-12-19 2016-06-23 Osram Gmbh Beleuchtungseinrichtung
JP6751307B2 (ja) 2016-05-17 2020-09-02 スタンレー電気株式会社 車両用灯具

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US20080310180A1 (en) * 2007-06-15 2008-12-18 Hideyasu Shoji Vehicle lamp
US20100309680A1 (en) * 2009-06-04 2010-12-09 Takashi Akutagawa Vehicle headlight

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JP4080780B2 (ja) * 2002-04-23 2008-04-23 株式会社小糸製作所 光源ユニット
FR2849158B1 (fr) * 2002-12-20 2005-12-09 Valeo Vision Module d'eclairage pour projecteur de vehicule
JP5524470B2 (ja) * 2008-11-12 2014-06-18 株式会社小糸製作所 車両用灯具ユニット及び車両用灯具

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US20080310180A1 (en) * 2007-06-15 2008-12-18 Hideyasu Shoji Vehicle lamp
US20100309680A1 (en) * 2009-06-04 2010-12-09 Takashi Akutagawa Vehicle headlight

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EP2472176A3 (de) 2017-10-04
FR2970061B1 (fr) 2020-03-06
EP2472176A2 (de) 2012-07-04
FR2970061A1 (fr) 2012-07-06

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