EP1600689A1 - Multifunktions-Scheinwerfer für Kraftfahrzeuge - Google Patents

Multifunktions-Scheinwerfer für Kraftfahrzeuge Download PDF

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Publication number
EP1600689A1
EP1600689A1 EP05291092A EP05291092A EP1600689A1 EP 1600689 A1 EP1600689 A1 EP 1600689A1 EP 05291092 A EP05291092 A EP 05291092A EP 05291092 A EP05291092 A EP 05291092A EP 1600689 A1 EP1600689 A1 EP 1600689A1
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EP
European Patent Office
Prior art keywords
reflector
function
lens
projector according
filament
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
EP05291092A
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English (en)
French (fr)
Other versions
EP1600689B1 (de
Inventor
Antoine De Lamberterie
Sébastien Casenave
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.)
Valeo Vision SAS
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Valeo Vision SAS
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Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP1600689A1 publication Critical patent/EP1600689A1/de
Application granted granted Critical
Publication of EP1600689B1 publication Critical patent/EP1600689B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • 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
    • F21S41/10—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
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • 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
    • F21S41/19—Attachment of light sources or lamp holders
    • 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
    • F21S41/25—Projection lenses
    • F21S41/265—Composite lenses; Lenses with a patch-like shape
    • 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
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/331—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas
    • F21S41/332—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas with continuity at the junction between adjacent areas
    • 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
    • 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 invention relates to a multifunctional light projector for a motor vehicle, of the type that includes a reflector ellipsoid type, two light sources associated respectively with each of the two functions, an optical means located in front of the reflector and a cache located between the light sources and the optical means.
  • the invention relates more particularly, but not exclusively, a luminous headlamp in which the first function is a function code while the second function is a route function.
  • a conventional projector of the elliptical type that is to say with a reflector of ellipsoidal or multi-ellipsoidal type, includes a fixed cover and allows only one function, usually the code function. he then it is necessary to use an additional projector to fill the route function.
  • U.S. Patent No. 4,914,747 discloses a bifunctional floodlight which prevents a movement of the cache.
  • the projector includes a reflector having two parts separated by a meridian plane virtual horizontal passing substantially in the vicinity of at least one of light sources and parallel to the optical axis of the projector. Both parts of the reflector admit different foci staggered according to the direction of the optical axis. A first part of the reflector located first side of the meridian plane is assigned to the first code function, and a second part of the reflector located on the other side of the meridian plane is assigned to the second route function.
  • the optical medium in front of the reflector is constituted by a convex plane lens of revolution, rotating its curved surface to the outside.
  • the invention aims, above all, to provide a light projector multi-function, including bi-function, which ensures at least two functions, including code and route functions, without requiring a movement of the cache, which ensures a luminous flux recovered for the part road sufficiently high and whose optical means, seen by an observer, differs from the usual revolution lens of a projector type elliptical. It is furthermore desirable that the projector remains relatively simple and economical construction.
  • one of the parts of the reflector can also contribute to a function than the one to which it is more precisely dedicated.
  • the first function is an associated code function at the first reflector part
  • the second function is a route function associated with the second reflector portion.
  • one of functions, including the road function may in fact use not only the reflector part dedicated to it, but also the reflector part more particularly adapted to a code function (when a part of light rays emitted by the source on the road transmits towards the two parts of the reflector).
  • the first (or one of) (1.1m) portions of lens is convergent type, and the second (or other) (2.2m) portion of lens is convergent or divergent.
  • the portion adapted to a road will be divergent or convergent, that adapted to a code will preferentially convergent.
  • the meridian plane of separation can be vertical. Both lens portions are placed side by side and joined together according to plan vertical meridian, the foci of the two lens portions are staggered transversely, the focus of the code portion lying on or in the neighborhood the top edge of the cache.
  • the light sources are constituted by two filaments of the same lamp, namely a filament code with a cup located on the opposite side to the reflector associated with the filament code, and a filament route free of any cup.
  • They can also be constituted by two lamps halogen or two xenon lamps, or two diodes electroluminescent, or by two groups of diodes electroluminescent or other lamps. They can also associate two different types of lamp.
  • the two light sources can be two electroluminescent diodes or two groups of diodes electroluminescent ones distributed on both sides of the virtual meridian plane, whatever the orientation of said meridian plane.
  • both light sources are two electroluminescent diodes arranged from and other of the virtual meridian plane, diodes arranged so as to be diametrically opposite to each other or inclined relative to each other the other. The inclination is chosen in particular so that the main axis of light emission from one of the diodes differs from that of the other diode.
  • the diodes are arranged to be inclined by ratio to the virtual meridian plane of an angle between 0 and 60 °, especially 5 and 50 ° .
  • This angle of inclination is understood as the measure the angle between the meridian plane in question and the plane passing through the support of the diode, or between the meridian plane in question and the axis emitting principle of the diode (usually perpendicular to the plane of support of the diode).
  • the meridian separation plane can be horizontal.
  • the two lens portions are united according to the plan horizontal meridian, one portion being located above the other. Faces (convex or concave) lens portions are rotated towards a observer located in front of the projector and the outline of all two portions seen in elevation recalls that of a number 8 or two truncated / contiguous circles.
  • the light sources may consist of two filaments of the same lamp, namely a filament code with a cup located on the opposite side to the reflector associated with the filament code, and a filament route free of any cup.
  • the filament codes may be located on the inside of the vehicle and the associated part of the Reflector is also located towards the inside of the vehicle.
  • the filament the road and the associated part of the reflector are located outside the vehicle. (One understands by "inside” the filament among the two which located closest to the longitudinal axis of the vehicle, once the headlamp mounted in the vehicle).
  • the terms “vertical”, “horizontal”, “lower” or “superior” refer to the configuration of the projector (or its components) in its normal position of use, once mounted in the vehicle.
  • the filament code may be located, with the associated portion of the reflector, on the upper side of the separation plane.
  • the road filament is associated with the lower part of the reflector.
  • the road filament is then advantageously horizontal: it may have a parallel, transverse or oblique orientation with respect to the optical axis of the portion of the lens that is assigned to it.
  • the cache is preferably essentially vertical, in particular transverse.
  • the cover is formed by a plate essentially horizontal, also called folder.
  • the upper face of the plate is advantageously reflecting, in particular aluminized.
  • the focus of the code portion of the lens lies on the front edge of the plate.
  • light sources may be situated on, or in the vicinity of, the median line separating lens portions; the top of the reflector for the code function is then advantageously turned upwards by an angle such that its axis optic meets the horizontal cover on the axis of the portion superior lens.
  • the light sources may be located on, or in the vicinity of, the optical axis of the upper lens portion.
  • the part lower reflector for the route function is then advantageously down an angle such that its optical axis passes below the horizontal cover located on the axis of the upper portion of the lens.
  • the lower portion of the lens, for the road function can be diverging and the lower part of the reflector, for the road function, is turned down from a relatively weak angle.
  • the invention also relates to the vehicle on which is mounted at less a projector described above.
  • Fig.1 of the drawings we can see a section schematic horizontal of a bifunctional light projector, for vehicle automotive, to provide a function code and a route function.
  • the projector comprises an ellipsoid reflector R having two portions R1, R2 virtually separated by a plane vertical meridian P.
  • the reflector R is in one piece, the parts R1 and R2 being integral with one another but having optical characteristics different.
  • Part R1 admits a first home in the vicinity of which is located a first light source L1.
  • This fireplace is located on one side of the plane P, on the left side according to the representation of FIG. 1, considering that the light spreads from left to right.
  • Part R2 admits a first focus displaced transversely on the other side of the plane P, that is to say to the right according to Fig.1, with respect to the direction of propagation of the light.
  • a second light source L2 is located in the vicinity of the first focus of R2.
  • the part R1 of the reflector is assigned to a first function, to know the function code, and form an image of the source L1 at a point Fg, to left of the plane P.
  • the part R2 is assigned to the second function namely the route function, and forms an image of the source L2 at a point Fd on the right of the plane P.
  • the light sources L1, L2 are constituted by the two filaments b1, b2 of a double-filament lamp, by example a H4 or DFCS lamp (Double Filament Complex Shape), schematically represented without its glass envelope or its base.
  • a opaque cup C is arranged on the side of the filament b1 remote from the portion R1 of the reflector. In the example of Fig.1 the cup C is essentially vertical and prevents light rays from the filament b1 to reach the second reflector portion R2.
  • the sources L1, L2 are shifted in the direction of the axis Medium X-X optical projector.
  • the source L2 is behind the source L1, according to the direction of propagation of the light.
  • the two sources L1, L2 are further offset transversely to the plane P.
  • the lamp double filament is advantageously a halogen lamp.
  • the light sources L1, L2 as illustrated in FIG. FIG. 3 may be constituted by two light-emitting diodes D1, D2 maintained on both sides of the plane P and preferably inclined to illuminate to the corresponding reflector portion R1, R2.
  • the diodes can be arranged symmetrically to the plane P, as shown, but it is not necessary. They are here inclined so as to make an angle relative to the plane P between, for example, 10 and 45 °. This angle is measured between the plane P and the plane passing through the support of the diodes (or, this which returns here to the same, between the plane P and the main axes of emission of light of the diodes, perpendicular to the plane of their respective supports).
  • diodes are possible that the plane P is vertical, horizontal or oblique.
  • the diodes can also be arranged "back to back", that is, arranged so that they emit in two half-spheres complementary.
  • the code function is ensured by the single filament b1, while the road function is provided by the filament b2 or by all of the two filaments b1 and b2.
  • the code function is ensured by a single diode D1 while the route function is provided by the two diodes D1, D2 lighted simultaneously.
  • the optical means A is located in front of the reflector R, according to the direction of light propagation, and in front of a cache M located in front of light sources L1, L2.
  • the cache M shown in elevation on Fig.2 seen from the left by compared to Fig.1, intervenes on the light beams essentially by its the top part.
  • the left side of the upper edge has a segment horizontal m0, which is extended on the right by a line segment m1 amount from left to right at a certain angle relative to the horizontal, for example 15 °.
  • the two segments m0 and m1 define the code cut.
  • the cache M is arranged so that the point Fg, image from the source L1 by R1, is at the vertex K, or in the vicinity of this vertex, the angle formed by the segments m0, m1.
  • the segment m1 is extended, on the right, by a horizontal segment m2 located above the line of cut J shown in dashes.
  • a descending segment m3 follows m2 segment.
  • a horizontal segment m4 located below the line of break J follows the m3 segment.
  • the point Fd, image of L2 by R2 is located in the free space determined by the segments m3, m4, but not necessarily in the plane of the cache M.
  • the beam produced by the source L2 and the part R2 is not cut by the mask M.
  • the optical means A comprises a first lens portion 1 and a second lens portion 2 located on either side of the plane meridian P, and associated respectively with the first part R1 and the second part R2 of reflector.
  • the lens portions 1, 2 are convergent, convex flat, the curved side facing away from the reflector, outward.
  • the outline of the optical medium seen in elevation appears on Fig.4 and resembles at a figure 8 lying horizontally.
  • Lens portions 1 and 2 can be obtained by cutting two convex planar lenses according to a plane orthogonal to the plane face, the two lenses being glued according to their plane cutting.
  • both portions 1, 2 may correspond to two areas of one and the same glass molded part or transparent plastic material.
  • the visible side the optical means A has two convex zones separated by a median depression.
  • the optical axis Y1 of the lens portion 1 passes through the point Fg and is parallel to the average axis X-X.
  • the focus of lens portion 1 is confused with the point Fg or neighbor of this point.
  • the lens portion 2 has an optical axis Y2 parallel to X-X and passing through the point Fd.
  • the focus of lens 2 is confused with Fd or neighbor of this point.
  • the optical means A is somehow formed by a single bi-axis lens that gives the projector, seen by an observer located in before, a very original aspect.
  • the distance between points Fg and Fd determines the separation of functions. For a 60mm diameter lens, the distance separating Fg from Fd can be about 30mm.
  • the Fd point can be find forward or backward from the orthogonal plane to the passing X-X direction by Fg.
  • the filament code b1 is electrically powered so as to illuminate the left part R1 of the reflector.
  • This part consisting of a surface generally of elliptical type, forms an image of the filament code at point Fg located in the plane of the cache M to the left of the meridian plane P.
  • the left zone m0, m1 (Fig.2) of the mask M has a cutout classic to form a projector cutoff code, V cut in the example shown for Europe.
  • the example concerns a type break traffic on the right.
  • the invention also applies to traffic-type cuts left (reverse cut), and flat cuts (like those used for fog lamps). In the case of a projector code for United States of America, the cut would be in the form of a march.
  • the lens portion 1 opposite the point Fg allows training of the beam code.
  • the L2 route filament is not electrically powered.
  • the b2 route filament is powered electrically.
  • the filament b1 is also fed.
  • the right part R2 The reflector forms an image of the road filament at point Fd.
  • the part right 2 of the lens whose focus is at point Fd allows the formation of the beam, essentially from the upper part, which does not undergo cut.
  • the lower part of the road beam is added to the code beam with overlapping part of the bundles to avoid a hole corresponding to the cache area.
  • the bi-axis lens 1.2 is simple to achieve. Just take two classic elliptical lenses from which the two portions are extracted desired.
  • Fig.5 shows, always in section by a horizontal plane as on Fig.1, a set of two projectors for a motor vehicle.
  • the projector located on the right side of Fig.5 (right side of the vehicle) is identical to the projector of Fig.1.
  • the first part R1 of the reflector is turned towards the longitudinal axis of the vehicle, that is to say inwards, then that the second part R2 is turned outward.
  • the projector located on the left of Fig.5 (left side of vehicle), has a symmetrical arrangement with respect to the longitudinal axis of the vehicle.
  • the first reflector portion R1 ensuring the code function is located on the right while the R2 portion, assigned to the road, is located on the left side of the reflector.
  • the area right of the system performs the function code while the left area fills the road function.
  • the symmetrical arrangement with respect to the longitudinal axis of the vehicle Fig.5 provides a generally symmetrical photometry.
  • each constituent element of a conventional elliptical projector including reflector plus cache plus lens, is divided into two parts by a vertical meridian plane passing substantially in the vicinity of one of the filaments code or road lamp.
  • both parties are separated in width by a vertical plane.
  • the duplication of the projector is no longer in width, but in height in the vertical direction.
  • This type of configuration is well suited to a system using a DFCS lamp whose filament route b2m is transverse, horizontal, perpendicular to the plane of the figure.
  • the filament b2m is, for example, at the same level as the cup C, behind of it.
  • the Mm cache is located in a vertical plane between the sources bright and lens portions.
  • the top edge of the Mm cache, seen from face (Fig.7), includes two horizontal segments offset in height, connected by an inclined segment, which corresponds to the V-cut of the code beam European.
  • the portion R1m of the reflector is intended to form the image of the filament b1m at a point Fh at the upper end of the segment inclined the upper edge of the screen Mm as shown in Fig.7. Point Fh can be only near the Mm cache.
  • the bottom part R2m of the reflector forms the image of the filament b2m at a point Fb located below (Fig.7) of the Mm cache.
  • the light from the reflector R1m and the filament b1m is recovered by the high portion 1m lens opposite the "V" cut Mm cache for the code function.
  • the lens portion 1m has its focus at point Fh or at neighborhood, while the lower portion of 2m lens has its focus located at point Fb.
  • Front view, the bi-axis lens 1m, 2m has the appearance of a figure 8, the 1m portion being located above the 2m portion.
  • the two filaments b1m and b2m are powered so that the upper part of the beam is produced by the filament b2m, the reflector portion R2m and the lens portion 2m.
  • the lower part includes the code part from the b1m filament.
  • the set is intended for the two beams from R2 and R1 have a common range below the horizontal cutoff line of so that there is not an absence of sensible light or a "hole" in the area in front of the cache.
  • a horizontal blade reflective N preferably an aluminized or reflectorized glass slide on its upper face, which is put in place of the cache M or Mm of previous examples.
  • the reflective plate N is also called "Folding". The face of the N blade which is not reflective can be possibly frosted to prevent the passage of parasitic rays.
  • the blade N has the shape of the cut that one wishes to realize for the beam.
  • Fig. 10 shows an open V-shaped blade turning its tip towards the high, for the realization of a European code beam.
  • the upper face 3 is aluminized.
  • Fig.11 illustrates a Na blade whose upper surface 3a presents the shape of the desired cut for a code beam in the United States of America. This form includes two extreme segments horizontally connected by a segment inclined substantially mid-length.
  • the upper portion 1m of the lens is focused on the face 4 of the folder farthest from the filaments of the light sources, plus precisely on the upper edge of this face at a point Fh.
  • the reflective plate N makes it possible to send back into the beam of rays such as 5 that previously fell in the M or Mn cache and who were lost? A significant gain in luminous flux can thus be obtained.
  • 2m When the light sources are on the median axis between the two lens portions 1m, 2m can be rotated slightly angle ⁇ (FIG. 12) towards the top of the reflector portion R1m associated with the function code so that the optical axis of the part R1m meets the cahe N.
  • the angle ⁇ may be of the order of about 12 °.
  • the lower part R2m of the reflector, associated with the road function is inclined downwards by an angle ⁇ with respect to the position of Fig.8 to improve the road function.
  • ⁇ can be for example about 10 °, and may be in particular between 5 and 15 °.
  • Fig.14 shows an alternative embodiment in which the filaments b1m, b2m light sources are aligned on the optical axis of the upper lens portion 1m.
  • the lower part of R2m reflector dashed represents the inclined position of Fig.13.
  • This arrangement makes it possible to limit the inclination of the part lower reflector at the position shown in full line R2m2 corresponding to an angle of inclination ⁇ less than ⁇ .
  • the angle ⁇ can be less than 10 °.
  • the invention makes it possible to ensure two functions, including code and route, without having to move a cache and implement for example an electromagnet or a mechanism, so that the system is economical.
  • the bi-axis lens constituting the means Optical takes an original form while remaining easy to achieve, this which is a significant advantage in style.
  • Fig.14 The last embodiment of Fig.14 is interesting for the luminous flux aspect. It also resolves the distribution problem of light in the side.

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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)
EP05291092.4A 2004-05-25 2005-05-20 Multifunktions-Scheinwerfer für Kraftfahrzeuge Not-in-force EP1600689B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0405647 2004-05-25
FR0405647A FR2870799B1 (fr) 2004-05-25 2004-05-25 Projecteur lumineux multifonction pour vehicule automobile

Publications (2)

Publication Number Publication Date
EP1600689A1 true EP1600689A1 (de) 2005-11-30
EP1600689B1 EP1600689B1 (de) 2016-06-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05291092.4A Not-in-force EP1600689B1 (de) 2004-05-25 2005-05-20 Multifunktions-Scheinwerfer für Kraftfahrzeuge

Country Status (3)

Country Link
EP (1) EP1600689B1 (de)
JP (1) JP2005340209A (de)
FR (1) FR2870799B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
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WO2009104115A1 (en) * 2008-02-20 2009-08-27 Philips Intellectual Property & Standards Gmbh Automotive front lighting system with adaptive arc shaping
CN103090286A (zh) * 2011-10-27 2013-05-08 汽车照明罗伊特林根有限公司 用于机动车的前大灯投影模块
WO2014130957A1 (en) * 2013-02-25 2014-08-28 Rensselaer Polytechnic Institute Low luminance lighting
WO2015071529A1 (en) * 2013-11-12 2015-05-21 Ledil Oy A low-beam headlight element for a vehicle
US10260697B2 (en) 2016-02-18 2019-04-16 Koito Manufacturing Co., Ltd. Vehicle lamp having integral projection lenses and a primary array of light emitting elements arranged on common support with apertures and a secondary array of light emitting elements arranged behind apertures

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JP5719671B2 (ja) * 2010-11-05 2015-05-20 株式会社小糸製作所 車両用灯具
JPWO2012176652A1 (ja) * 2011-06-21 2015-02-23 コニカミノルタ株式会社 車両用前照灯
FR2984456B1 (fr) * 2011-12-19 2015-08-21 Valeo Vision Systeme d'eclairage pour projecteur notamment de vehicule automobile
US9400090B2 (en) 2013-05-31 2016-07-26 Panasonic Intellectual Property Management Co., Ltd. Light source unit and vehicle front lamp using the light source unit
CN108278572A (zh) * 2018-02-23 2018-07-13 重庆舜辉庆驰光电科技有限公司 Led双焦点双光透镜汽车前大灯

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US4851968A (en) * 1987-09-29 1989-07-25 Koito Seisakusho Co., Ltd. Automotive projector type headlight
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US4953063A (en) * 1988-09-27 1990-08-28 Koito Manufacturing Co., Ltd. Vehicular headlamp
FR2839139A1 (fr) * 2002-04-25 2003-10-31 Valeo Vision Module d'eclairage elliptique sans cache realisant un faisceau d'eclairage a coupure et projecteur comportant un tel module

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DE3530002A1 (de) * 1985-08-22 1987-02-26 Bosch Gmbh Robert Scheinwerfer-einheit fuer kraftfahrzeuge
US4851968A (en) * 1987-09-29 1989-07-25 Koito Seisakusho Co., Ltd. Automotive projector type headlight
US4862329A (en) * 1988-03-11 1989-08-29 Koito Seisakusho Co., Ltd. Vehicular headlamp
US4914747A (en) * 1988-06-28 1990-04-03 Koito Seisakusho Co, Ltd. Vehicular headlamp
US4953063A (en) * 1988-09-27 1990-08-28 Koito Manufacturing Co., Ltd. Vehicular headlamp
FR2839139A1 (fr) * 2002-04-25 2003-10-31 Valeo Vision Module d'eclairage elliptique sans cache realisant un faisceau d'eclairage a coupure et projecteur comportant un tel module

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009104115A1 (en) * 2008-02-20 2009-08-27 Philips Intellectual Property & Standards Gmbh Automotive front lighting system with adaptive arc shaping
CN103090286A (zh) * 2011-10-27 2013-05-08 汽车照明罗伊特林根有限公司 用于机动车的前大灯投影模块
CN103090286B (zh) * 2011-10-27 2015-04-08 汽车照明罗伊特林根有限公司 用于机动车的前大灯投影模块
WO2014130957A1 (en) * 2013-02-25 2014-08-28 Rensselaer Polytechnic Institute Low luminance lighting
US10696210B2 (en) 2013-02-25 2020-06-30 Rensselaer Polytechnic Institute Low luminance lighting
WO2015071529A1 (en) * 2013-11-12 2015-05-21 Ledil Oy A low-beam headlight element for a vehicle
US9822942B2 (en) 2013-11-12 2017-11-21 Ledil Oy Low-beam headlight element for a vehicle
US10260697B2 (en) 2016-02-18 2019-04-16 Koito Manufacturing Co., Ltd. Vehicle lamp having integral projection lenses and a primary array of light emitting elements arranged on common support with apertures and a secondary array of light emitting elements arranged behind apertures

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FR2870799B1 (fr) 2007-08-17
JP2005340209A (ja) 2005-12-08
FR2870799A1 (fr) 2005-12-02
EP1600689B1 (de) 2016-06-08

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