EP1832805B1 - Optisches Modul für Autoscheinwerfer, ausgestattet mit einem optischen Ablenkelement - Google Patents

Optisches Modul für Autoscheinwerfer, ausgestattet mit einem optischen Ablenkelement Download PDF

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Publication number
EP1832805B1
EP1832805B1 EP07290235A EP07290235A EP1832805B1 EP 1832805 B1 EP1832805 B1 EP 1832805B1 EP 07290235 A EP07290235 A EP 07290235A EP 07290235 A EP07290235 A EP 07290235A EP 1832805 B1 EP1832805 B1 EP 1832805B1
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EP
European Patent Office
Prior art keywords
optical axis
plane
reflector
lens
optical
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EP07290235A
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English (en)
French (fr)
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EP1832805A1 (de
Inventor
Vincent Godbillon
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Valeo Vision SAS
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Valeo Vision SAS
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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
    • F21S41/30—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
    • 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
    • F21S41/26—Elongated lenses
    • 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
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity 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
    • F21S41/10—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
    • 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
    • F21S41/17—Discharge light sources
    • F21S41/172—High-intensity discharge 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
    • F21S41/30—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
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • 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

Definitions

  • the invention relates to an optical module admitting an optical axis and at least one focal point, and a light source, module intended to be placed in a projector for a motor vehicle.
  • the module comprises a reflector in the vicinity of a focus of the reflector, and a transparent optical deflection element placed in front of a portion of the reflector, this element being constituted by a module comprising a lens called "square lens" and a reflector placed at the rear of said lens, the module being adapted to ensure a substantially horizontal spreading of the light.
  • square lens By the simplifying expression "square lens”, and for the sake of brevity, it is understood in the context of the invention a lens having at least one face (inlet and / or outlet) cylindrical vertical generatrices.
  • the outline of the lens is not limited to the square shape, but can be rectangular, circular, oval, ovoid, ogival, or be of square or rectangular type contour but with rounded edges or cut sides, or any other contour.
  • a projector comprising such a square lens is known from the patent EP 1 243 846 .
  • This projector has the advantage of a depth (that is to say, a size in the direction of the optical axis) relatively small and a large luminous flux.
  • the reflector comprises a notch and at least one additional reflector disposed on the side of the notch, the additional reflector being provided to collect the light from the light source coming out of this notch to produce an additional light beam not intercepted by the lens .
  • the projector thus retains a shallow depth and a large luminous flux, and makes it possible to obtain a large range of the beam and, if desired, to cut the beam inclined to the horizontal, in particular for a code function.
  • the object of the invention is therefore to improve the optical systems of the type mentioned above, in particular in order to better control / exploit the radii bright entering the square lens.
  • the invention firstly relates to a headlamp for a motor vehicle comprising a reflector R admitting an optical axis YY and at least one focus F1, a light source S placed in the vicinity of a focus of the reflector, and a transparent element of optical deflection D placed in front of a portion of the reflector, and comprising a lens called "square lens" L.
  • Said reflector R is placed behind said lens.
  • Said optical deflection element D is capable of ensuring essentially horizontal spreading of the light.
  • the exit face of said "square lens” is chosen tangent to a plane P1 disposed obliquely with respect to said optical axis Y-Y.
  • the solution of the invention is simple. This solution is also very effective because it allows to regain control on the rays emitted by the source, entering the lens but then go back "by reflection" on the inner face of its exit surface, and, in particular, to ensure that these rays come out of the module in a controlled manner, in particular without causing glare when the module performs an optical function with cutoff, oblique cutting type or flat cut (code, anti-fog ).
  • the invention applies equally well to single reflector modules, as described in the patent EP 1 243 846 than modules with additional reflectors as described in the patent EP 1 491 816 .
  • the module reflector wall has at least one indentation on one side of a plane passing through the optical axis of the reflector, and at least one additional reflector is disposed on the side of the notch opposite the optical axis.
  • This or these additional reflector (s) are intended (s) to collect at least a portion of the light from the light source out through the notch, and to produce an additional beam that is not intercepted by the lens.
  • the inclination change of the lens should be adjusted as best as possible.
  • the plane tangent to the exit face of the "square lens" is inclined at least 1.5 °, in particular at least 2 °, with respect to a plane passing through the normal to the optical axis. and intersecting said plane on said optical axis. More simply expressed, when the module is in the mounting position, the plane tangent to the exit face of the lens can be inclined relative to the vertical of the aforementioned angle. Preferably, this angle is chosen at most 12 °, in particular at most 10 °. It is advantageously between 4 ° and 6 °, for example equal to 5 °.
  • the inclination of the lens has an effect either negligible or a less good effect vis-à-vis the parasitic rays that the configuration perpendicular to the usual optical axis.
  • This selection is in in addition, appropriate to have the lowest possible impact on the style, on the visual appearance of the module, in the off state as in the lit state.
  • the plane tangent to the exit face of the "square lens" is inclined relative to the plane passing through the normal to the optical axis and intersecting said plane on said optical axis, the angular difference being measured positively above of the optical axis.
  • the upper edge of the "square lens" is further ahead than its lower edge with respect to the general direction of travel of the light emitted by the light source, if we consider the module in the position mounting in the vehicle, once integrated into the projector. It turned out that tilting the lens in the other direction did not have the magnitude of the desired impact on the parasitic rays.
  • the lens of the "square" lens type is thus "tilted" without substantially altering the initial geometry: the vertical generatrices of the input face of the lens will preferably be, like the exit face of the lens, in a plane arranged obliquely with respect to the optical axis: any characteristic mentioned in this text relating to this oblique plane can therefore be applied both to the tangent plane of the exit face of the lens and to the vertical generatrices from its entrance face.
  • the lens laterally: the plane tangential to the exit face of the lens is then rotated relative to an axis perpendicularly intersecting the optical axis, particularly with respect to a substantially vertical axis, an angle between 0.5 and 20 °, in particular of the order of 1 to 10 °.
  • the lens compared to its usual configuration, has therefore undergone a slight up / down and / or right / left rotation.
  • the most common configuration of the optical module according to the invention is that the plane normal to the optical axis mentioned above is substantially vertical, considering the module being in the mounting position in the vehicle, once integrated into the projector . Therefore, always in mounting position, the lens has an exit face substantially bent with respect to the vertical, instead of being in a vertical plane or being tangent to a vertical plane.
  • the reflector wall of the module comprises two indentations located on either side of a plane passing through the optical axis, in particular above and below a plane respectively. Horizon passing through the optical axis or respectively to the right and left of a vertical plane passing through the optical axis. At least one additional reflector is associated with each indentation and disposed on the notch side opposite the optical axis to produce an additional bundle that is not intercepted by the lens.
  • the invention also relates to any motor vehicle headlight incorporating an optical module as described above.
  • the wall of the reflector comprises at least one indentation on one side of a plane which is vertical, horizontal or oblique with respect to the vertical and passing through said optical axis.
  • the invention thus provides a number of embodiments, in which the general orientation of the optical system associating the lamp, the reflectors and the indentations can be either vertical or horizontal, or take any desired orientation with respect to the vertical, in particular to take Consider aesthetic considerations or dimensional requirements related to the vehicle that will be equipped with the projector in question.
  • the lamp used may be of filament lamp type whose orientation may be axial, transverse or oblique.
  • the optical axis mentioned above is therefore coincident with the axis of the filament of the lamp when it is chosen to have an axial orientation.
  • the lamp can also be a xenon lamp or a light emitting diode or an assembly of several of these diodes.
  • the spatial references used of the "vertical”, “horizontal”, “lateral” or “oblique” type are to be understood according to the positioning of the considered elements of the module, once the integrated module in a projector mounted in the vehicle.
  • the square lens module is advantageously optimized in total flux collected, as for its horizontal guide curve, for a given depth of the projector and with the greatest possible focal length.
  • the square lens module can also be optimized in total flux collected, as to the height of its vertical section, for a given depth of the projector and with the greatest possible focal length, especially when the indentation or notches are on one side. a vertical or oblique plane passing through the optical axis.
  • the height of the reflector and of the lens facing it is preferably chosen so as to ensure the best possible collection of the luminous flux (for the focal length obtained during the optimization of the vertical generatrix and taking into account the acceptable limit depth, this determines the height of the vertical section of the reflector, this height being the highest of the square lens module whose apparent apparent surface then takes on the appearance of an oval).
  • a horizontal parallel beam is not, or substantially not, vertically deflected.
  • the wall of the reflector comprises two notches located on either side of a plane passing through the optical axis, at least one additional reflector being associated with each notch and disposed on the side of the notch opposite the optical axis to produce an additional beam that is not intercepted by the lens.
  • the indentations will be respectively above and below a selected horizontal plane passing through the optical axis or respectively to the right and left of a selected vertical plane passing through the optical axis.
  • the plan can also be oblique, as already mentioned.
  • the two indentations can be disjointed or, on the contrary, be joined and thus form a single notch, shaped L or T for example. It is then possible to obtain an optical system that is also schematically L-shaped, V-shaped, or T-shaped, and not only of horizontal or vertical "linear" appearance.
  • the limit of the additional reflector (or at least one of them if there are several) on the side of the light source is such that no light is lost between the reflector R and the reflector additional, at the level of the notch.
  • the additional reflector reaches at least the shadow limit created by the reflector R in the beam emitted by the light source.
  • the additional reflector or reflectors are preferably of complex surface. They are intended to increase the range of the light beam.
  • the additional reflector or reflectors are also provided to create a cut of the light beam inclined to the horizontal, in particular at 15 °.
  • the additional reflectors are spaced apart from the lens, in particular vertically or horizontally according to their arrangement, by a distance sufficient to prevent the beam reflected by these reflectors from interfering with the lens.
  • the surfaces of the additional reflectors may be limited by the plane tangent to the exit surface of the lens and orthogonal to the optical axis, so as not to increase the overall depth of the system.
  • At least one space created between an additional reflector and the reflector of the lens is used to perform another lighting or signaling function, without increasing the overall size.
  • a DRL (Day Running Light) function can be installed between an additional top reflector and the top edge of the lens.
  • the illuminating surface, to ensure the DRL function can be increased by at least a portion of the surface of the lens, by illuminating an edge of the lens (in particular its upper edge or its lateral edge depending on whether the reflector arrangement is vertical or horizontal type), using the beam created by the DRL reflector.
  • the additional functions are performed using simple reflectors so that all the reflectors can be made in one piece, which can be demolded in the direction of the optical axis.
  • the additional functions can be envisaged as lantern, direction or ID lights, fog lights or AB lights, fixed cornering lights or FBL (for Fixed Bending Light).
  • said diodes are preferably disposed below a horizontal plane containing the optical axis of the light source providing the code function, to be less exposed to heating.
  • an additional reflector in two parts, namely an extreme part, giving the smallest images, essentially providing a large range and the area inclined cut, and a special part, closer to the optical axis, intended to display its images under the cut towards the tip of the V.
  • a means for vertically moving the light beam from the square lens relative to the beam of additional reflectors A lowering of the beam of the square lens is obtained by a rotation of the exit face of the lens around its upper horizontal edge. This rotation can be provided by an added prism against the exit face of the lens, or by an appropriate definition of the exit face of the lens to achieve the same effect.
  • the top, bottom, or side of the system can be favored for additional reflectors.
  • the system may have an asymmetrical configuration better suited to integration into a given projector.
  • the light source formed by a lamp can then be shifted, in the direction of the additional reflectors, relative to the square lens. Such positioning makes it possible to obtain a more closed surface in the direction opposite to that of the offset.
  • the additional reflectors To maintain a sufficient range of the light beam, it is possible for the additional reflectors to have surfaces which, on the favored side, extend beyond the plane of exit of the lens. The depth along the optical axis of the main reflector is then greater, but this depth following a normal to the oblique exit glass of the projector may be lower.
  • the surfaces of the additional reflectors may comprise ridges delimiting facets, in particular at least one central facet and two lateral facets.
  • an optical module MO for a motor vehicle having a reflector R (common element) admitting an optical axis Y and at least one focus a light source S placed in the vicinity of the focus, and a transparent optical deflection element D placed in front of the main reflector R.
  • the general orientation of the optical system is horizontal, the optical module being arranged in the position provided in the vehicle.
  • the deflection element D is constituted by a square lens having at least one cylindrical face with vertical generatrices, suitable for ensuring a horizontal spread of the light, without significant influence in the vertical direction.
  • One of the faces of the lens, the outlet face FS facing towards the front, is plane, orthogonal to the optical axis Y.
  • the other face, turned towards the rear and constituting the entrance face FE, is of cylindrical shape with vertical generatrices based on a horizontal directional curve.
  • the director may include a convex central portion forwards between two concave parts.
  • the outline of the lens is generally rectangular or square, but this lens could be cut in a circular outline or other. In this example, the contour of the lens is substantially rectangular, the longest side of the rectangle being disposed substantially vertically.
  • the lens D is secured to the reflector R by a not shown element which surrounds entirely its periphery. A lens of this type is described in EP-A-1,243,846 , to which we will refer for more details on the geometry of the
  • the reflector R constitutes a substantially convergent mirror (the edges may be parabolic, and the reflector may therefore have locally non-convergent zones), whereas the lens D is partially divergent.
  • the light source S is here an incandescent lamp, filament aligned with the Y axis. It could also be a gas discharge lamp called xenon lamp.
  • the module is intended to be integrated in a B projector box closed at the front by a mirror G ( Fig.3 ).
  • the reflector R has two notches in which are disposed two additional reflectors R1, R2 of horizontal orientation.
  • additional reflectors R1, R2 of horizontal orientation.
  • the additional reflector R1 of complex surface type, is intended to improve comfort, that is to say to increase the illumination provided by the module 30 meters from the vehicle, at medium distance therefore.
  • the additional reflector R2 of the invention is intended to make the scope, that is to say to increase the illumination beyond 35 meters.
  • the main reflector R associated with the lens D is intended to create a wide beam and high luminous flux.
  • focal lengths of the additional reflectors R1 and R2 is best adjusted according to the present invention: for the reflector R2 scope, a focal length of about 22 to 26 mm is appropriate, which allows to sufficiently flare this sector parabolic to have small images and create the maximum concentration area and the part of the beam corresponding to the V of cutting of a break of the European code type.
  • the focal length is preferably lower than that of R2, in particular of the order of 15 to 20 mm, which makes it possible to "close” again the reflector R1: with an equal optical module width, one recovers more luminous flux, or, by reducing the size of the module, a satisfactory level of luminous flux is maintained.
  • focal lengths for R1 and R2 are chosen which remain at least 10 mm (in particular between 15 and 28 mm): this choice makes it possible to leave in the shade all the connection zones between the reflectors R, R1 and R2 relative to the source S (light cone whose summit starts from the source S and resting on the edge of the main reflector R). Using such small focal lengths is usually difficult for conventional reflectors. This is possible in the context of the present invention, insofar as the width of the beam of the module is here obtained by the lens D associated with the main reflector, the surfaces of the reflectors R1 and R2 can be closed without the risk of intercepting them. rays from the main reflector.
  • the figure 2a represents the isolux obtained with the main reflector R, with a clear horizontal cut (measured at 25 m).
  • the figure 2b represents the isolux obtained with the reflector R2 (measured at 25 m).
  • the Figure 2c represents the isolux obtained with the reflector R1 (measured at 25 m).
  • the superposition of the isolux of these three isolux corresponds to the overall beam emitted by the module, a 15 ° oblique cut code beam.
  • the lens D is therefore vertical, that is to say that the exit face of the lens is in a vertical plane, which is perpendicular to the optical axis Y of the reflector R.
  • This second source is in fact a very distorted image of the filament of the real light source S (zone lying at the intersection of the two radii r1 and r2 at the figure 3b ), which is below the horizontal plane containing the filament of the lamp S, which itself is in the focus of the reflector R.
  • the parasitic rays then leave the module above the cut, above the horizontal represented by the two lines I1, I2 of the figure 3b .
  • the code function obtained is therefore not optimal, since it has radii above the oblique cut at 15 ° regulatory.
  • the figure 4 illustrates the corresponding isolux curves, as measured at 25 meters at the front of the module. In the axis of the target, light levels above 0.7 lux are noted.
  • the upper edge of the lens D is inclined slightly towards the front.
  • the figure 5a superimposes the vertical configuration of the lens (comparative module) and the inclination of an angle alpha thereof according to the invention.
  • the angle alpha is measured by the angular spacing of the plane of the output face FS of the lens relative to the vertical.
  • the output face FS of the lens is tangent to the plane P1 making an angle alpha with respect to the plane P0 which is normal to the optical axis YY and, in fact, vertical.
  • Figures 6a, 6b, 6c represent the isolux curves obtained from the code functions, always measured at 25 meters at the front of the optical module with, for the figure 6a , an alpha angle of 2 °, for the figure 6b an angle alpha of 4 °, and for the Figure 6c an alpha angle of 5 °. From an inclination of 2 ° ( figure 6a ), we see an improvement compared to a standard vertical positioning of the lens ( figure 4 ): the value in the axis is just below the regulatory 0.7 lux threshold.
  • the virtual light source still exists, but it is this time above the horizontal plane containing the filament of the lamp S.
  • the parasitic rays then come out of the module below the cut: on the one hand we avoid glare in code-type cut-off beam position, and on the other hand we recover more light to make this same beam code.
  • the figure 7 shows the evolution of the quantity of parasitic rays arriving above the cut of a code beam (y axis in lux) generated by an optical module as described above, as a function of the chosen alpha angle (x axis in degrees): we check that the angle alpha is preferably at least 2 ° or 3 ° to be really effective. In addition, it has been shown that an inclination of 10 or 12 ° maximum is recommended, because beyond the edges of the beam tend to "go up".
  • the figure 8a represents a front view of two adjacent cavities of a projector (cavities shown separately for convenience, but which are in fact contiguous): the cavity on the right of the figure is that containing the square lens and its two reflectors R1 and R2 of the type described above.
  • the figure 8b is a perspective view of the two cavities
  • Figure 8c is a section of the right-hand cavity passing through the lamp, which shows the inclination of the square lens at an angle of about 5 °, so that its upper edge is more forward than its lower edge.
  • Another example according to the invention consists in slightly rotating the lens with respect to a substantially vertical axis perpendicular to the optical axis: this rotation also makes it possible to absorb parasitic rays. It is preferably done, in top view, in the counterclockwise direction for a code beam adapted to traffic on the right, and in the clockwise direction for a code beam adapted to traffic on the left. This rotation can be about 1 to 5 °. The direction of rotation can be reversed in some configurations.

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

Claims (13)

  1. Optikmodul für Kraftfahrzeugscheinwerfer, mit einem eine optische Achse (Y-Y) und wenigstens einen Brennpunkt aufweisenden Reflektor (R), einer in der Nähe eines Brennpunkts des Reflektors angeordneten Lichtquelle (S) und einem durchsichtigen optischen Ablenkelement (D), das vor einem Teil des Reflektors angeordnet ist und eine sogenannte "quadratische Linse" (D) umfasst, die wenigstens eine zylindrische Fläche mit senkrechten Erzeugenden aufweist, wobei der Reflektor (R) hinter der Linse platziert ist, wobei das optische Ablenkelement (D) eine im Wesentlichen horizontale Auffächerung des Lichts zu gewährleisten vermag, dadurch gekennzeichnet, dass die Austrittsfläche der "quadratischen Linse" eine bezüglich der optischen Achse (Y-Y) schräg angeordnete Ebene (P1) tangiert, wobei die senkrechten Erzeugenden der Eintrittsfläche der Linse in einer bezüglich der optischen Achse (Y-Y) schräg angeordneten Ebene angeordnet sind.
  2. Optikmodul nach dem vorhergehenden Anspruch,
    dadurch gekennzeichnet, dass die Wand des Reflektors (R) wenigstens einen Ausschnitt auf einer Seite einer durch die optische Achse (Y-Y) des Reflektors verlaufenden Ebene aufweist, und dass wenigstens ein Zusatzreflektor (R1, R2) auf der der optischen Achse (Y-Y) entgegengesetzten Seite des Ausschnitts angeordnet ist, wobei der Zusatzreflektor dazu vorgesehen ist, wenigstens einen Teil des von der Lichtquelle (S) stammenden, durch den Ausschnitt austretenden Lichts aufzunehmen und ein Zusatzlichtbündel zu erzeugen, das von der Linse (D) nicht abgefangen wird.
  3. Optikmodul nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die die Austrittsfläche und/oder die senkrechten Erzeugenden der Eintrittsfläche der "quadratischen Linse" tangierende Ebene (P1) mindestens um 1,5°, insbesondere um mindestens 2° bezüglich einer durch die Normale der optischen Achse (Y-Y) verlaufenden und die Ebene (P1) auf der optischen Achse (Y-Y) schneidenden Ebene (P0) geneigt ist.
  4. Optikmodul nach dem vorhergehenden Anspruch,
    dadurch gekennzeichnet, dass die die Austrittsfläche der "quadratischen Linse" und/oder die senkrechten Erzeugenden ihrer Eintrittsfläche tangierende Ebene (P1) um höchstens 12°, insbesondere um höchstens 10° bezüglich einer durch die Normale der optischen Achse (Y-Y) verlaufenden und die Ebene (P1) auf der optischen Achse (Y-Y) schneidenden Ebene (P0) geneigt ist.
  5. Optikmodul nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die die Austrittsfläche der "quadratischen Linse" und/oder die senkrechten Erzeugenden ihrer Eintrittsfläche tangierende Ebene (P1) in einem Winkel zwischen 4° und 6° bezüglich der durch die Normale der optischen Achse (Y-Y) verlaufenden und die Ebene (P1) auf der optischen Achse (Y-Y) schneidenden Ebene (P0) geneigt ist.
  6. Optikmodul nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die die Austrittsfläche und/oder die senkrechten Erzeugenden der Eintrittsfläche der "quadratischen Linse" tangierende Ebene (P1) bezüglich der durch die Normale der optischen Achse (Y-Y) verlaufenden und die Ebene (P1) auf der optischen Achse (Y-Y) schneidenden Ebene (P0) geneigt ist, wobei der Winkelabstand (P1-P0) über der optischen Achse (Y-Y) positiv gemessen wird.
  7. Optikmodul nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die auf der optischen Achse (Y-Y) normal stehende Ebene (P0) im Wesentlichen vertikal ist, wobei sich das Modul in der Montagestellung im Fahrzeug befindet.
  8. Optikmodul nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass der obere Rand der "quadratischen Linse" weiter vorne liegt als ihr unterer Rand bezogen auf die allgemeine Richtung des Wegs des von der Lichtquelle (S) emittierten Lichts, wobei sich das Modul in der Montagestellung im Fahrzeug befindet.
  9. Optikmodul nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass einer der seitlichen Ränder der "quadratischen Linse" weiter vorne liegt als der entgegengesetzte seitliche Rand bezogen auf die allgemeine Richtung des Wegs des von der Lichtquelle (S) emittierten Lichts, wobei sich das Modul in der Montagestellung im Fahrzeug befindet.
  10. Optikmodul nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die Wand des Reflektors (R) zwei Ausschnitte aufweist, die beidseits einer durch die optische Achse verlaufenden Ebene, insbesondere über bzw. unter einer durch die optische Achse verlaufenden horizontalen Ebene oder rechts bzw. links einer durch die optische Achse verlaufenden vertikalen Ebene liegen, wobei wenigstens ein Zusatzreflektor (R1, R2) einem jeden Ausschnitt zugeordnet und auf der der optischen Achse entgegengesetzten Seite des Ausschnitts angeordnet ist, um ein Zusatzlichtbündel zu erzeugen, das von der Linse (D) nicht abgefangen wird.
  11. Optikmodul nach einem der vorhergehenden Ansprüche 2 oder 10,
    dadurch gekennzeichnet, dass jeder Ausschnitt einem Zusatzreflektor (R1, R2) zugeordnet ist, wobei die beiden Zusatzreflektoren asymmetrisch sind.
  12. Optikmodul nach einem der vorhergehenden Ansprüche 2, 10 oder 11,
    dadurch gekennzeichnet, dass die Zusatzreflektoren (R1, R2) unterschiedliche Brennweiten und/oder Brennweiten von wenigstens 10 mm oder 15 mm haben.
  13. Kraftfahrzeugscheinwerfer, der ein Optikmodul nach einem der vorhergehenden Ansprüche umfasst.
EP07290235A 2006-03-07 2007-02-22 Optisches Modul für Autoscheinwerfer, ausgestattet mit einem optischen Ablenkelement Active EP1832805B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0602026A FR2898402B1 (fr) 2006-03-07 2006-03-07 Module optique pour projecteur automobile muni d'un element de deviation optique

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EP1832805A1 EP1832805A1 (de) 2007-09-12
EP1832805B1 true EP1832805B1 (de) 2010-06-16

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CN (1) CN101067482B (de)
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* Cited by examiner, † Cited by third party
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DE102005014754A1 (de) * 2005-03-31 2006-10-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH KFZ-Scheinwerfer
CN101398492A (zh) * 2007-09-24 2009-04-01 深圳市九洲光电子有限公司 一种光学透镜
JP5255301B2 (ja) * 2008-03-12 2013-08-07 株式会社小糸製作所 車両用前照灯装置
WO2015087838A1 (ja) 2013-12-12 2015-06-18 三菱電機株式会社 前照灯モジュール及び前照灯装置

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US4087682A (en) * 1976-03-15 1978-05-02 Kolodziej Henry W Illuminating device
JPS5679801A (en) * 1979-12-03 1981-06-30 Ichikoh Industries Ltd Lamp for vehicle
DE3036987C2 (de) * 1980-10-01 1994-02-10 Bosch Gmbh Robert Streuscheibe für einen Scheinwerfer für Kraftfahrzeuge
JPH0731921B2 (ja) 1988-01-20 1995-04-10 市光工業株式会社 プロジェクタ型の前照灯
DE4315393C2 (de) * 1993-05-08 2002-10-31 Bosch Gmbh Robert Kraftfahrzeugscheinwerfer mit einem Reflektor und einer Streulinse
DE4417695C2 (de) * 1994-05-20 1998-01-29 Reitter & Schefenacker Gmbh Kraftfahrzeugleuchte
US6441943B1 (en) * 1997-04-02 2002-08-27 Gentex Corporation Indicators and illuminators using a semiconductor radiation emitter package
DE19851174B4 (de) * 1998-11-06 2006-04-13 Reitter & Schefenacker Gmbh & Co. Kg Signalleuchte, insbesondere Heckleuchte, von Fahrzeugen, vorzugsweise von Kraftfahrzeugen
JP2000348532A (ja) * 1999-06-03 2000-12-15 Plus Property Corp ランプ装置用放熱・冷却構造
JP3964089B2 (ja) * 2000-01-12 2007-08-22 株式会社小糸製作所 車両用前照灯
JP3390413B2 (ja) * 2000-08-07 2003-03-24 株式会社キャットアイ ヘッドランプ
JP2002122865A (ja) * 2000-10-19 2002-04-26 Hitachi Ltd 光源装置およびこれを用いた投射型ディスプレイ装置
FR2822550B1 (fr) * 2001-03-21 2003-05-16 Valeo Vision Projecteur de vehicule automobile a miroir et element de deviation conjugues
FR2824513B1 (fr) * 2001-05-11 2003-07-25 Valeo Vision Dispositif d'eclairage en virage pour un vehicule automobile
JP2003123519A (ja) * 2001-10-15 2003-04-25 Honda Motor Co Ltd プロジェクタ型ヘッドランプ
ATE408090T1 (de) * 2003-06-27 2008-09-15 Valeo Vision Kfz-scheinwerfer mit einem spiegel und einem optischen umlenkelement

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CN101067482B (zh) 2011-06-29
DE602007007134D1 (de) 2010-07-29
AR059747A1 (es) 2008-04-23
BRPI0700644A (pt) 2008-03-04
US7503679B2 (en) 2009-03-17
JP2007242618A (ja) 2007-09-20
ATE471484T1 (de) 2010-07-15
EP1832805A1 (de) 2007-09-12
JP5085161B2 (ja) 2012-11-28
FR2898402B1 (fr) 2015-01-23
FR2898402A1 (fr) 2007-09-14
US20070211485A1 (en) 2007-09-13
CN101067482A (zh) 2007-11-07

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