EP2492580B1 - Dispositif d'éclairage prévu pour l'intégration dans un véhicule automobile - Google Patents

Dispositif d'éclairage prévu pour l'intégration dans un véhicule automobile Download PDF

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Publication number
EP2492580B1
EP2492580B1 EP12152524.0A EP12152524A EP2492580B1 EP 2492580 B1 EP2492580 B1 EP 2492580B1 EP 12152524 A EP12152524 A EP 12152524A EP 2492580 B1 EP2492580 B1 EP 2492580B1
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EP
European Patent Office
Prior art keywords
light
optical element
lighting device
light beams
reflector
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.)
Active
Application number
EP12152524.0A
Other languages
German (de)
English (en)
Other versions
EP2492580A3 (fr
EP2492580A2 (fr
Inventor
Michael Scholl
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.)
Marelli Automotive Lighting Reutlingen Germany GmbH
Original Assignee
Automotive Lighting Reutlingen GmbH
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Publication date
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Publication of EP2492580A2 publication Critical patent/EP2492580A2/fr
Publication of EP2492580A3 publication Critical patent/EP2492580A3/fr
Application granted granted Critical
Publication of EP2492580B1 publication Critical patent/EP2492580B1/fr
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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
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/689—Flaps, i.e. screens pivoting around one of their edges
    • 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
    • F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
    • F21S41/13—Ultraviolet light; Infrared 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
    • F21S41/10—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
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • 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
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24-F21S41/28
    • 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
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • 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
    • F21S41/322—Optical layout thereof the reflector using total internal reflection
    • 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
    • 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
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • 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
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/698—Shaft-shaped screens rotating along its longitudinal axis
    • 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
    • F21W2102/17—Arrangement or contour of the emitted light for regions other than high beam or low beam
    • F21W2102/18—Arrangement or contour of the emitted light for regions other than high beam or low beam for overhead signs

Definitions

  • the present invention relates to a lighting device provided for installation in a motor vehicle.
  • This comprises at least one semiconductor light source for emitting light beams, a primary optics for bundling at least part of the emitted light beams, and a secondary optics consisting of exactly one imaging reflector for imaging at least a portion of the bundled light beams in a light exit direction on a roadway in front of the vehicle to produce a desired light distribution.
  • the at least one semiconductor light source, the primary optics and the imaging reflector are arranged vertically above one another in a vehicle-mounted orientation of the illumination device.
  • Such a lighting device is, for example, from the EP 2 119 959 A1 known.
  • the primary optic is as a Ellipsoid reflector and the secondary optics formed as a paraboloidal reflector.
  • the entire light emitted by the at least one semiconductor light source reaches the paraboloid reflector and is reflected by it to produce a desired light distribution on the road ahead of the motor vehicle.
  • the light emitted by the at least one semiconductor light source reaches the paraboloid reflector either directly or after reflection at the ellipsoid reflector.
  • the known lighting device is formed relatively short construction and therefore particularly suitable for installation in motor vehicles with installation openings for the lighting device with shallow depth.
  • the known illumination device has a relatively low efficiency, since losses, in particular so-called Fresnel losses, occur due to the multiple reflections of the light at the reflection surfaces of the various reflectors. As a result of the light emitted by the at least one light source after reflection at the reflectors, only a part of the originally emitted light is available for generating the desired light distribution.
  • the present invention has the object, to design a lighting device of the type mentioned in such a way and further that their efficiency can be improved.
  • the luminous flux generated by the illumination device for a given electrical power consumption should be increased without impairing the reliability and lifetime of the illumination device.
  • the primary optics comprise at least one intent optics made of a transparent material with totally reflecting properties, comprising at least part of the light beams emitted by the at least one semiconductor light source by means of total reflection and refraction at interfaces of the attachment optics bundles.
  • a lighting device for proposed a motor vehicle in particular in the form of a motor vehicle headlight, which is suitable due to their space-optimized, in particular vertically stacked individual components for installation in an installation opening of a motor vehicle body with low installation depth.
  • the illumination device according to the invention has a particularly high efficiency, since the bundling of the emitted light from the at least one semiconductor light source is not by means of a reflector on conventional reflections, but by means of at least one attachment optics on very low-loss total reflections. In particular, with a total reflection of the light coupled into the at least one optical attachment, there are no or only extremely small Fresnel losses.
  • the lighting device according to the invention generates a particularly high luminous flux for a given electrical power consumption, without affecting the reliability and life of the lighting device. Because of this high efficiency, the lighting device according to the invention is particularly suitable for use in a motor vehicle driven at least at times by electric current. However, even in conventional motor vehicles equipped with an internal combustion engine, a fuel saving can be achieved by the particularly efficient illumination device according to the invention and ultimately a reduction in the CO 2 emitted by the internal combustion engine.
  • the secondary optics comprise exactly one imaging reflector.
  • the secondary optics could also have only a reflector with different areas, sections or reflecting surfaces, but they are all an integral part of the one reflector. In each case specific parts of the desired resulting light distribution of the illumination device can be generated by the different reflection surfaces.
  • the resulting light distribution of the illumination device can either represent a complete total light distribution, for example a low beam distribution, high beam distribution, city light distribution, high street light distribution, motorway light distribution, fog light distribution, bad weather light distribution, adaptive light distribution or any other light distribution. It is also conceivable, however, for the resulting light distribution to be only a part of an overall light distribution, for example to be a broadly scattering basic light distribution of a low beam distribution composed of the base light distribution and a concentrated spotlight distribution with higher light intensity values than the base light distribution.
  • the exactly one reflector or the reflection surfaces of the secondary optics preferably have a parabolic shape. This is preferably formed starting from a paraboloid shape by variations of individual discrete points of the paraboloid shape as a free-form surface.
  • exactly one reflector or the reflection surfaces of the secondary optics form a parabola in a vertical section and an ellipse, a deformed ellipse, a deformed parabola in a horizontal section or a combination of the two.
  • a diaphragm arrangement for shading at least a part of the light rays bundled by the primary optics is arranged in a beam path of the light beams, the secondary optics imaging an edge of the diaphragm arrangement as a light-dark boundary of a dimmed light distribution onto the roadway.
  • the illumination device is suitable for producing a dimmed light distribution, for example dipped beam, city light, high street light or fog light, with a substantially horizontally extending light-dark boundary.
  • a horizontal Patoscuro boundary can either be designed completely as a symmetrical light-dark boundary or with an increase on the own traffic side as an asymmetric light-dark boundary.
  • the transition between a lower section of the light-dark border on the oncoming traffic side and a higher section of the light-dark border on one's own traffic side can be either stepped or oblique.
  • the diaphragm arrangement comprises a roller element rotatable about a horizontal axis of rotation extending transversely to the optical axis of the attachment optics with different contours distributed over the circumferential surface as edges or a planar diaphragm element having a front and / or top edge.
  • the course of the edge of the flat panel element can by suitable measures, such as. From DE 10 2005 012 303 A1 are known to be varied.
  • An aperture arrangement with a rotatable roller element is, for example, from DE 197 39 089 A1 known.
  • a flat panel element can, for example, vertical, parallel or be arranged obliquely to an optical axis of the at least one attachment optics.
  • a diaphragm element arranged perpendicular to the optical axis of the optical attachment an upper edge of the diaphragm element is imaged by the secondary optics for generating the light-dark boundary of the desired light distribution on the roadway in front of the vehicle.
  • a diaphragm element arranged parallel to the optical axis of the attachment optics preferably a front edge of the diaphragm element is imaged by the secondary optics on the roadway.
  • a planar diaphragm element is preferably arranged obliquely to an optical axis of the attachment optics.
  • the flat diaphragm element is arranged at an angle of about 40 to 50 °, preferably at an angle of 45 °, with respect to the optical axis of the at least one attachment optics.
  • the upper or front edge of the areal diaphragm element is imaged by the secondary optics for generating the light-dark boundary of the resulting light distribution on the roadway.
  • the illumination device has an optical element and the diaphragm arrangement at least partially has a reflective coating on a surface facing the at least one optical attachment, the reflective coating reflecting at least part of the part of the light beams shaded by the diaphragm arrangement onto the optical element.
  • the optical element advantageously directs the light rays of the shaded portion of the light rays to the secondary optics, from where they are then reflected onto the roadway as part of the resulting desired light distribution.
  • the reflected from the aperture arrangement Part of the collimated light also for generating a different light function with a deviating from the desired light distribution light distribution, eg. A position light or a daytime running light, are used.
  • electrically separately controllable light sources are required for each individual light function, but they can also be switched on together.
  • the optical element has an at least partially reflecting surface which reflects at least part of the light rays striking the optical element onto the secondary optics.
  • the partially reflecting surface of the optical element reflects a first part of the light rays striking the optical element to the secondary optics and a second part of the light rays striking the optical element is transmitted through the optical element.
  • the light transmitted through the optical element therefore does not leave the illumination device via the secondary optics, but rather via the optical element.
  • the light can be directed to the roadway as part of the resulting desired light distribution.
  • the light transmitted through the optical element can also be used to produce another light function with a light distribution deviating from the desired light distribution, for example a position light or a daytime running light.
  • the light transmitted through the optical element can be used, for example, for expanding the signal image.
  • the signal image expansion has on the one hand a meaning in the night design of the lighting device and on the other a photometric significance, because just small light emission openings, as present in the lighting device according to the invention, subjectively uncomfortable bright oncoming road users. With the Signalkowetzweitung perceive other road users the same amount of light passing through the same light exit opening, as pleasant.
  • targeted overhead values of the light distribution can be operated. For this purpose, further optical elements for deflecting the light can be introduced into this part of the beam path.
  • the light passed by the diaphragm arrangement-either after being bundled by the attachment optics or directly emitted by the at least one semiconductor light source- preferably passes directly and directly onto the secondary optics, preferably as a reflector, from where it generates a first part of the resulting desired light distribution the roadway is reflected in front of the vehicle.
  • the part of the light which is shaded by the diaphragm arrangement-whether after bundling by an attachment optics or immediately after emission by the at least one semiconductor light source- reaches the secondary optics indirectly, for example by deflection at the optical element.
  • the diaphragm arrangement is at least partially provided with a reflective coating which directs the shaded light, for example, onto the optical element.
  • the optical element is designed as a reflector, it can transmit the light which has been shaded by the diaphragm arrangement further onto the secondary optics reflect from where it can be reflected to generate a second part of the resulting desired light distribution of the illumination device on the road ahead of the motor vehicle.
  • the resulting, desired light distribution of the illumination device can be generated by a superposition of the two parts of the light distribution.
  • the first part of the light distribution is a concentrated spotlight distribution with a sharp asymmetric upper bright-dark boundary, which is generated by the light beams passing by the diaphragm arrangement.
  • the second part of the light distribution may be a base light distribution having a relatively large horizontal dispersion but no distinct illuminance maxima, from which the diaphragm arrangement is shadowed and part of the light emitted by the semiconductor light sources is indirectly formed.
  • a superposition of the spotlight distribution and the basic light distribution results, for example, in a low-beam distribution.
  • part of the light beams emitted by the at least one semiconductor light source pass the secondary optics past the attachment optics, and that the secondary optics reflect this part of the light beams in front of the vehicle in the light exit direction.
  • the secondary optics reflect this part of the light beams in front of the vehicle in the light exit direction.
  • the illumination device may have an optical element, wherein the part of the light beams passing the attachment optics strikes the optical element and the optical element directs this part of the light beams onto the secondary optics.
  • the optical element to which the light which has passed the attachment optics passes may be the same optical element to which the light reflected by the diaphragm arrangement is also directed. Alternatively, it may also be different optical elements.
  • the additionally provided optical element to which the light which has passed the attachment optics passes can, for example, be designed as a reflector which reflects the light incident on it and past the attachment optics to the secondary optics.
  • the light passed by the attachment optics can, if present, be used after deflection through the optical element and after reflection at the secondary optics formed from exactly one imaging reflector for generating a first part of the resulting desired light distribution of the illumination device.
  • a second part of the resulting light distribution could then be generated by the light bundled by the attachment optics, if present, after deflection through the optical element and after reflection at the secondary optics formed from exactly one imaging reflector.
  • a superposition of the first and the second part of the light distribution then gives the resulting desired light distribution of Lighting device.
  • the optical element has an at least partially reflecting surface, which reflects at least a part of the light rays striking the optical element onto the secondary optics.
  • the partially reflective surface of the optical element reflects a first portion of the light rays striking the optical element onto the secondary optics and transmits a second portion of the light rays incident on the optical element through the optical element.
  • the optical element consists of a transparent material, for example a transparent plastic or glass, and has a partially reflecting coating.
  • the second part of the light beams transmitted through the optical element can exit the illumination device via the optical element.
  • a light exit surface of the optical element is coated with scattering structures (eg prisms, cylindrical lenses, a microstructure or the like), which causes a scattering of the light emerging from the optical element.
  • the second part of the light beams transmitted through the optical element exits the illumination device in the light exit direction.
  • the emerging from the optical element part of the light rays generated in accordance with a preferred embodiment non-focused scattered light to enlarge a signal image of the imaged by the secondary optics light distribution.
  • the part of the light beams emerging from the optical element contribute to the resulting, desired light distribution of the illumination device makes.
  • the part of the light beams emerging from the optical element illuminates a region of the light distribution above a light-dark boundary of the light distribution for a desired dimmed light distribution.
  • the named range above the light-dark limit of the light distribution is also referred to as the overhead range. Illuminating this area at a relatively low intensity so as to avoid dazzling oncoming road users and to comply with the legal requirements for the maximum illuminance values in the overhead area may result in improved recognition of traffic signs and other objects located above the roadside on their own traffic side ,
  • the present invention relates to a lighting device for motor vehicles, which is described in more detail below with reference to the example of a motor vehicle headlight is explained.
  • the invention is not limited to headlights, but can equally well for any vehicle lights, especially front, side and rear lights, are used.
  • FIG. 1 a lighting device according to the invention in the form of a motor vehicle headlamp is designated in its entirety by the reference numeral 1.
  • the headlight 1 is installed in the front region of a motor vehicle.
  • two of the headlights 1 shown are usually arranged in the front area of the motor vehicle, in each case laterally in the vicinity of the vehicle outer sides, in corresponding mounting openings provided in a vehicle body, fastened therein and electrically contacted, ie with the motor vehicle electrical system and / or a control unit connected.
  • a motorcycle designed as a motor vehicle preferably only one headlight 1 is arranged, preferably centrally in the front region of the vehicle.
  • the light-emitting diode 5 is preferably arranged on a carrier element 7, which in turn may be arranged on a heat sink (not shown).
  • the carrier element 7 may be equipped with printed conductors and electronic components as well as plugs.
  • heat can be transmitted either directly or indirectly via the carrier element 7 to the heat sink, which emits the heat to the environment in order to avoid overheating of the light-emitting diode 5.
  • the light-emitting diode 5 usually transmits in a 180.degree. Half-space formed above the surface extension of the support element 7, as stated above, in the main exit direction 6.
  • the light emitted by the at least one light-emitting diode 5 is bundled by at least one primary optics 8 designed as an optical attachment.
  • the attachment optics 8 consists of a transparent material, preferably of a plastic.
  • An optical axis of the attachment optics 8 preferably extends either congruently or parallel to the main exit direction 6 of the light-emitting diode 5.
  • the light emitted by the light-emitting diode 5 is transmitted via light entry surfaces 9 (cf. FIG. 6 ) coupled into the attachment optics 8. At least part of the coupled-in light is totally reflected at least once at outer boundary surfaces 10 of the optical attachment 8. Via a light exit surface 11, the light is then extracted from the optical attachment 8.
  • the intent optics 8 provides by refraction of the light at the entrance surfaces 9 and the exit surface 11 and by total reflection of the light at the oblique boundary surfaces 10 for a bundling of the light beams.
  • the light bundled by the attachment optics 8 reaches one of exactly one imaging element Reflector trained secondary optics 12, the at least a portion of the collimated light in a light exit direction 32 (see FIGS. 2 to 5 ) on a roadway in front of the vehicle to produce a desired light distribution maps.
  • the reflector 12 may have a plurality of partially differently shaped reflection surfaces, which are an integral part of the reflector 12. In the illustrated embodiment FIG.
  • the reflector 12 comprises a central first reflection surface 13, two second reflection surfaces 14 arranged laterally therefrom and a third reflection surface 15 arranged above the central reflection surface 13.
  • a third reflection surface 15 arranged above the central reflection surface 13.
  • the reflection surfaces 13 to 15 are in FIG. 1
  • lines separated from each other These lines may correspond to steps, edges and / or kinks between the reflection surfaces 13 to 15, so that they can be seen with the naked eye on the reflector 12.
  • the reflection surfaces 13 to 15 can also be flush with each other without steps, edges and kinks, so that they may not be visible to the naked eye.
  • the reflection surfaces 13 to 15 preferably generate different parts of the resulting, desired total light distribution of the illumination device 1.
  • the central reflection surface 13 has a relatively highly concentrated spotlight distribution with a relatively small horizontal Extension and a clearly formed upper Patoscuro limit generated.
  • the lateral reflection surfaces 14 can produce a broadly scattering base light distribution without pronounced intensity maxima and with a straight upper bright-dark boundary.
  • a superposition of the spotlight distribution and the basic light distribution then forms the resulting, desired total light distribution of the illumination device 1, which is embodied, for example, as a low-beam light distribution.
  • an area above the light-dark boundary of the low-beam light distribution can be generated to achieve overhead lighting.
  • a diaphragm arrangement 16 can be arranged in the beam path, which shadows at least a part of the light bundled by the optical attachment 8.
  • An upper or front edge 17 of the diaphragm arrangement 16 is reflected by the reflector 12 as a light-dark boundary of the desired light distribution of the headlight 1 on the road ahead of the vehicle.
  • the diaphragm edge 17 is preferably horizontal and perpendicular to the beam path.
  • the diaphragm edge 17 may have a straight course (cf., for example. FIGS. 2 to 5 ). Preferably, however, it comprises, as in FIG.
  • the diaphragm arrangement 16 comprises a simple edge 17 or two edges 17 arranged in succession in the light propagation direction (so-called double diaphragm).
  • the two edges 17 may, for example, be formed by a large thickness of the panel material (edge on the front side and edge on the rear side of the panel) or by two screens 16 arranged one behind the other with two separate edges 17.
  • the aperture itself also be bent.
  • the contour of such a curved aperture corresponds to the contour of the described planar aperture arrangement 16 as viewed in the light propagation direction. If the curved aperture along the main light propagation direction is projected into a plane which is perpendicular to the main exit direction, an edge profile comparable to the profile of the edge 17 of FIG
  • the diaphragm arrangement 16 can also be configured as a variable diaphragm, for example as a hinged diaphragm or as a roller diaphragm.
  • the headlight 1 may have an optical element 18, the functionality of which will be explained in detail below.
  • the optical element 18 through the cover 4 through visible.
  • the diaphragm assembly 16 is disposed substantially behind the optical element 18 and therefore not visible and in FIG. 1 shown only by dashed lines.
  • the visible through the cover 4 areas outside of the optical element 18 and the reflector 12 may be provided with a cover 19, which is for example mirrored.
  • FIGS. 2 to 5 When installed in the motor vehicle headlight 1 are essentially only the cover 4 and visible through these components of the lighting device 1, in particular the reflector 12 and the optical element 18, visible.
  • the essential components of the headlamp according to the invention are shown in various embodiments in a perspective view. Especially clear is the basis of the FIGS. 2 to 5 the vertical arrangement one above the other of the components of the headlight 1, ie the at least one light emitting diode 5, the at least one attachment optics 8, the - if present - diaphragm assembly 16, - if present - optical element 18 and the reflector 12. Overall, this results in a Compared to conventional lighting devices, where these components are arranged in a horizontal plane one behind the other, particularly short-lighting device 1.
  • FIGS. 2 to 5 those components of a lighting device 1 according to the invention are shown, which may be part of a headlight module. These are in particular one or more light sources 5, in particular one or more LEDs, one or more primary optics 8, in particular auxiliary optics, a secondary optics 12, exactly one reflector, one Aperture arrangement 16 and / or an optical element 18, in particular a reflector, which at least partially reflects visible light.
  • the aperture arrangement 16 is shown only schematically.
  • the aperture assembly 16 of the headlamp modules of FIGS. 2 to 5 Can the above regarding the FIG. 1 described asymmetrical course of the diaphragm edge 17, although this in the FIGS. 2 to 5 not shown.
  • the light emitted by the at least one light-emitting diode 5 is bundled by the attachment optics 8 and directed essentially in the direction of the upper or front edge 17 of the aperture arrangement 16.
  • a first part 20 of the collimated light beams passes the edge 17 of the diaphragm assembly 16 and impinges directly on one or more of the reflection surfaces 13 to 15 of the reflector 12. From there, the first part 20 of the light beams to produce a first part of the resulting, desired total light distribution of the lighting device 1 is reflected on the road ahead of the vehicle.
  • a second part 21 of the collimated light beams strikes the shade assembly 16 and is shadowed by this.
  • the diaphragm arrangement 16 is formed on one of the at least one attachment optics 8 facing side 22 at least partially reflective, for example, provided with a reflective coating.
  • the diaphragm arrangement 16 is arranged and aligned in the beam path such that light rays striking the reflective surface 22 of the diaphragm arrangement 16 are reflected in the direction of the optical element 18.
  • the optical element 18 is in the in FIG. 2 shown embodiment formed as a reflector, the is formed and arranged in the beam path, that the second part 21 of the incident on the reflector 18 light rays is reflected in the direction of the reflector 12, from where he to generate a second part of the resulting desired total light distribution of the headlamp 1 on the road ahead of the vehicle is reflected.
  • a superimposition of the different parts 20, 21 of the light rays reflected by the reflector 12 produces the resulting, desired total light distribution of the headlight 1.
  • the total light distribution is, for example, in FIG. 7 shown how it results on a at a distance to the headlight 1, for example, at a distance of 25 meters, arranged measuring screen.
  • a horizontal HH and vertical vertical W is located on this a horizontal HH and vertical vertical W.
  • a concentrated area in the form of a spotlight distribution produced by the first part 20 of the light beams reflected by the reflector 12 is designated by the reference numeral 23.
  • the spotlight distribution 23 has a relatively high concentration, ie a small extent, in both the horizontal and the vertical direction.
  • the upper side of the spotlight distribution 23 forms a relatively sharply demarcated asymmetrical light-dark boundary 24.
  • This comprises a horizontal section 25 arranged on the oncoming traffic side below the horizontal HH and a higher section 26 arranged on its own traffic side and rising obliquely above the horizontal HH.
  • the spotlight distribution 23 has a pronounced intensity maximum, in particular in the center immediately below the light-dark boundary 24.
  • FIG. 7 A region in the form of a basic light distribution generated by the second part 21 of the light beams reflected by the reflector 12 is shown in FIG FIG. 7 denoted by the reference numeral 27.
  • the base light distribution 27 has a straight horizontal light-dark boundary 28 on its upper side. This preferably runs slightly below the bright-dark boundary 24 of the spotlight distribution 23. Furthermore, the base light distribution 27 has a relatively large extent in the vertical direction, but especially in the horizontal direction. Furthermore, the basic light distribution 27 has intensity peaks which are less pronounced than the spotlight distribution 23. A superimposing of the base light distribution 27 and the spotlight distribution 23 results in a low-beam distribution that satisfies the legal requirements for a low-beam distribution and particularly well suited to the customer's wishes as the resulting, desired total light distribution.
  • the first part 20 of the collimated light beams may impinge on a first region of the reflector 12, for example on the central reflection surface 13, and the second part 21 of the light rays collimated by the attachment optics 8 may strike other regions of the reflector 12, for example the lateral reflection surfaces 14 and from there then reflected in the desired manner on the road ahead of the vehicle.
  • the first part 20 and the second part 21 of the collimated light beams may strike different areas of the reflector 12, for example both the central reflection surface 13 and the lateral reflection surfaces 14.
  • the light emitted from the at least one light emitting diode 5 is split not only in the first part 20 and the second part 21 of the light beams, but also in a third part 33rd Der Third Part 33 of the at least one Light emitting diode 5 emitted light rays preferably comprises those light rays that are not coupled via one of the entry surfaces 9 in the attachment optics 8 after the emission by the at least one light-emitting diode 5.
  • the third part 33 of the light beams from the at least one light emitting diode 5 from directly on the reflector 12 meet (in FIG. 3 not shown).
  • the third part 33 of the light beams emitted by the at least one light-emitting diode 5 at least partially strikes an optical element, for example the optical element 18, and is deflected by it in the direction of the reflector 12.
  • the optical element 18, which is hit by the third part 33 of the light rays may be the same optical element 18, which also comprises at least a part of the second part 21 of the light rays reflected at the surface 22 of the aperture arrangement 16 in the direction of the reflector 12 turns. But it is also conceivable that they are different optical elements.
  • the optical element 18, which is hit by the light rays 33 passing past the attachment optics 8, is preferably designed as a reflector.
  • the different parts 20, 21, 33 of the light beams emitted by the at least one light-emitting diode 5 strike different areas of the reflector 12.
  • the first part 20 of the light beams bundled by the attachment optics 8 to act on the central reflection surface 13, the second part 21 of the focused light rays for lateral reflection surfaces 14, and the third part 33 for the light rays emitted by the at least one light-emitting diode 5 an upper reflection surface 15 strikes, from where the light beams are respectively reflected to generate the resulting, desired total light distribution in a light exit direction 32 on the road ahead of the vehicle.
  • the different parts 20, 21, 33 of the light beams each hit several of the reflection surfaces 13 to 15.
  • a through the headlight 1 according to the embodiment of FIG. 3 generated light distribution is exemplary in FIG. 8 shown.
  • the first part 20 of the light beams can still generate the spotlight distribution 23 and the second part 21 of the light beams can generate the basic light distribution 27.
  • the third part 33 of the light beams emitted by the at least one light-emitting diode 5 can serve for targeted additional illumination of the lateral regions of the low-beam light distribution 23, 27. With such a resulting total light distribution, the road edges and persons, objects and traffic signs located there are better visible to the driver of the motor vehicle.
  • the third part 33 of the light beams therefore generates the dipped beam distribution 23, 27 on one or both sides arranged side illumination areas 29, which overlap the low beam distribution 23, 27 to improve the illumination of the road edges.
  • FIG. 9 An alternative embodiment of the headlight 1 according to FIG. 3 realized light distribution is exemplary in FIG. 9 shown.
  • an overhead region 30 above the light-dark boundary 24 of the low-beam light distribution 23, 27 is illuminated by the third part 33 of the light beams emitted by the at least one light-emitting diode.
  • an overhead area 30 on the own traffic side in right traffic so right of the vertical W, illuminated. Through the illuminated overhead area 30 traffic signs and other objects that are located above the roadway at the edge of the road on the own traffic side can be better recognized by the driver of the motor vehicle.
  • the light resulting from the third part 33 of the light rays after reflection by the reflector 12 simply for amplifying certain portions of the low beam distribution 23, 27, for example, the spotlight 23 or the base light 27 is used.
  • a first light-emitting diode 5.1 is arranged directly below the attachment optics 8.
  • the third part 33 of the light beams emitted by the at least one light-emitting diode 5 could, for example, be emitted by a further light-emitting diode 5.2 arranged not directly below the attachment optics 8 but offset from it.
  • a further light-emitting diode 5.2 arranged not directly below the attachment optics 8 but offset from it.
  • Light-emitting diodes 5.1 are arranged below the attachment optics 8, so that the light emitted by this at least one light-emitting diode 5.1 would pass through the attachment optics 8 to the first and second parts 20, 21 of the bundled light beams.
  • the light emitted by the at least one further light-emitting diode 5.2 would form the third part 33 of the light rays emitted by the at least one light-emitting diode 5, which light passes past the attachment optics 8.
  • the housing 2 are pulled further upwards, so that the optical element 18 can not be seen through the cover plate 4 when looking into the headlight 1 against the light exit direction 32, but through the housing 2 which is pulled up to close to the reflection surface 12 is covered.
  • the entire area of the headlight 1 could be hidden below the reflector 12 of the vehicle body or corresponding aperture or decorative elements or the headlight housing 2. Visible from the outside would then be only the cover 4 with the reflector 12 located behind it.
  • FIG. 1 shown embodiment of the headlamp 1 with a visible through the cover 4 through optical element 18 is an embodiment of the components of the headlamp 1 according to the embodiments of FIGS. 4 or 5 especially advantageous.
  • the embodiment of the FIG. 4 corresponds essentially to the embodiment already described above FIG. 2 .
  • An essential difference to the Embodiment from FIG. 2 consists in that the optical element 18 is designed partially reflecting, so that it reflects only a part of the incident on the optical element 18 light rays and transmits another part of the light rays. In this way, the light emitted by the at least one light-emitting diode 5 and concentrated by the optical attachment 8 could be split into another part 31.
  • the further part 31 of the light beams can be refracted when passing through the optical element 18 at the interfaces between air and the material of the optical element 18. Due to the arrangement of optically active elements (not shown) on the light exit side of the optical element 18, for example. In the form of scattering structures (prisms, cylindrical lenses, a microstructure, etc.), shape, direction, luminous intensity distribution among others by the third part 31 of Light beams generated light beam can be adjusted in the desired manner.
  • the further part 31 of the light beams could be used to support the resulting total light distribution generated by the first and second parts 20, 21 of the light beams after reflection at the secondary optics 12.
  • the further part 31 of the light beams could also be used to increase the signal image of the resulting total light distribution produced by the first and second parts 20, 21 of the light beams in order to subjectively reduce the glare effect for oncoming traffic participants.
  • the luminous surface of the illumination device 1 is increased since light is no longer emitted only by the reflector 12, but in addition also by the optical element 18.
  • the other part 31 of the Light beams for generating an additional light function is used, which can optionally be generated via one or more separately controllable light sources.
  • this can be formed, for example, from a transparent material, in particular plastic, and provided on at least one side with a partially reflecting coating.
  • This coating is designed to reflect a part of the light rays impinging on it (the part 21 of the light rays directed toward the reflector 12) and another part of the light rays impinging on them (the other part 31 of the light rays).
  • the partially reflecting coating can be designed such that the light beams incident on it are reflected or transmitted in a wavelength-selective manner. It would be conceivable, for example, for light to be reflected in a wavelength range visible to the human eye in the direction of the reflector 12 and for light to be transmitted in a wavelength range which is invisible to the human eye, for example an infrared wavelength range.
  • the further part 31 of the light beams would essentially comprise only infrared (IR) radiation, which could be used, for example, for illuminating the roadway area in front of the motor vehicle, in particular above a light-dark boundary 24.
  • IR infrared
  • the illuminated with the IR radiation remote area could then be detected by an IR-sensitive camera and output to the driver of the motor vehicle either on a separate screen or as a projection on the windshield.
  • an IR-sensitive camera could then be detected by an IR-sensitive camera and output to the driver of the motor vehicle either on a separate screen or as a projection on the windshield.
  • the inventive Spotlight 1 realize the function of an IR radiator for a night vision system of a motor vehicle in a simple and cost-effective manner.
  • the further part 31 of the light beams also includes light visible to the human eye.
  • a light exit surface of the optical element 18 could be provided at least in regions with scattering elements, for example in the form of cylindrical lenses, prisms or a microstructure.
  • the partially reflective coating of the optical element 18 could also be designed such that its reflective or transmitting properties can be varied by the application of electrical energy to the coating.
  • the degree of reflection or transmission of the coating and thus also of the optical element 18 could be adjusted as desired in order to reflect or transmit more or less light.
  • the further part 31 of the light beams could even be used for generating light functions which can be activated or deactivated independently of an activation of the resulting total light distribution produced by the first and second part 20, 21 of the light beams, such as a flashing light function.
  • the material of the optical element 18 may also be colored yellow, orange and / or amber.
  • Headlamps 1 is described below with reference to FIG. 5 explained in more detail.
  • the components shown there and the function of the headlight 1 substantially correspond to the embodiment FIG. 3 ,
  • the optical element 18 is configured partially reflecting. This means that light incident on the optical element 18 is at least partially transmitted (further part 31 of the light beams). This applies both to light rays of the second part 21 (after reflection by the surface 22 of the diaphragm arrangement 16) and to light rays of the third part 33 (passing the attachment optics 8) of the light rays emitted by the at least one light-emitting diode 5.
  • the described headlight 1 can be arranged in its entirety about a horizontal axis 34 and / or a vertical axis 35 pivotally mounted in the vehicle body.
  • a headlamp module (cf. FIGS. 2 to 5 ) comprising the at least one light source 5, the at least one primary optics 8, the diaphragm assembly 16, the optical element 18 and the secondary optics 12 or only parts of the headlamp module are pivotable about a horizontal axis 34 and / or a vertical axis 35 relative to the headlamp housing 2 arranged.
  • a headlight range adjustment can be realized.
  • the vertical axis of rotation 35 preferably runs parallel to the main emission direction 6 of the light sources 5 in the region of the diaphragm arrangement 16.
  • the vertical pivot axis 35 of the headlight module or of parts thereof is preferred arranged such that the pivot axis 35 coincides with a longitudinal axis of an enveloping cylinder of the module, wherein the enveloping cylinder largely encloses the headlamp module.
  • the horizontal pivot axis 34 and the vertical pivot axis 35 may be offset from each other or intersect (eg in a gimbal mounting).

Claims (17)

  1. Dispositif d'éclairage (1) prévu pour le montage dans un véhicule automobile, comprenant au moins une source lumineuse à semi-conducteurs (5) pour émettre des rayons lumineux, une optique primaire pour focaliser au moins une partie des rayons lumineux émis, et une optique secondaire (12) consistant en exactement un réflecteur de représentation (12) destiné à reproduire au moins une partie des rayons lumineux focalisés dans une direction de sortie de lumière (32) sur une chaussée devant le véhicule afin de générer une répartition lumineuse désirée, la source lumineuse à semi-conducteurs (5), au moins au nombre de une, l'optique primaire et le réflecteur de représentation (12) étant disposés verticalement les uns au-dessus des autres selon un alignement du dispositif d'éclairage (1) monté dans le véhicule, caractérisé en ce que l'otique primaire comprend au moins une optique additionnelle (8) en matériau transparent doté de propriétés totalement réfléchissantes, qui focalise au moins une partie des rayons lumineux émis par la source lumineuse à semi-conducteurs (5), au moins au nombre de une, par réflexion totale et réfraction au niveau des interfaces (10) de l'optique additionnelle (8).
  2. Dispositif d'éclairage (1) selon la revendication 1, caractérisé en ce qu'est disposée, dans une trajectoire des rayons lumineux, une structure à diaphragme (16) destinée à occulter au moins une partie (21) des rayons lumineux focalisés par l'optique primaire (8), le réflecteur de représentation (12) reproduisant sur la chaussée un bord (17) de la structure à diaphragme (16) en tant que limite clair-obscur (24) d'une répartition lumineuse (23, 27) diaphragmée.
  3. Dispositif d'éclairage (1) selon la revendication 2, caractérisé en ce que la structure à diaphragme (16) présente un élément en forme de cylindre pouvant tourner autour d'un axe de rotation horizontal, s'étendant transversalement à la direction de sortie de la lumière, et ayant différents contours sous la forme de bords (17), ou un élément de diaphragme plat présentant un bord avant et/ou supérieur (17).
  4. Dispositif d'éclairage (1) selon la revendication 2 ou 3, caractérisé en ce que le dispositif d'éclairage (1) comporte un élément optique (18) et la structure à diaphragme présente, au moins par zones, sur une surface (22) orientée vers l'optique additionnelle, au moins au nombre de une, un revêtement réfléchissant, lequel revêtement réfléchissant réfléchit sur l'élément optique (18) au moins une partie (21) de la partie (21) des rayons lumineux occultée par la structure à diaphragme (16).
  5. Dispositif d'éclairage (1) selon la revendication 4, caractérisé en ce que l'élément optique (18) dirige les rayons lumineux de la partie occultée (21) des rayons lumineux sur le réflecteur de représentation (12).
  6. Dispositif d'éclairage (1) selon la revendication 4 ou 5, caractérisé en ce que l'élément optique (18) présente une surface au moins en partie réfléchissante qui réfléchit sur le réflecteur de représentation (12) au moins une partie (21) des rayons lumineux qui frappent l'élément optique (18).
  7. Dispositif d'éclairage (1) selon la revendication 6, caractérisé en ce que la surface partiellement réfléchissante de l'élément optique (18) réfléchit une première partie (21) des rayons lumineux qui frappent l'élément optique (18) sur le réflecteur de représentation (12), et transmet une seconde partie (31) des rayons lumineux qui frappent l'élément optique (18) à travers l'élément optique (18).
  8. Dispositif d'éclairage (1) selon l'une des revendications 1 à 7, caractérisé en ce qu'une partie (33) des rayons lumineux émis par la source lumineuse à semi-conducteurs (5), au moins au nombre de une, parvient au réflecteur de représentation (12) en passant au niveau de l'optique additionnelle (8) et que le réflecteur de représentation (12) réfléchit devant le véhicule cette partie (33) des rayons lumineux dans la direction de sortie de la lumière.
  9. Dispositif d'éclairage (1) selon la revendication 8, caractérisé en ce que la partie (33) des rayons lumineux parvenue en passant au niveau de l'optique additionnelle (8) arrive directement sur le réflecteur de représentation (12).
  10. Dispositif d'éclairage (1) selon la revendication 8, caractérisé en ce que le dispositif d'éclairage (1) présente un élément optique (18), la partie (33) des rayons lumineux parvenue en passant au niveau de l'optique additionnelle (8) atteignant l'élément optique (18), et l'élément optique (18) dirigeant cette partie (33) des rayons lumineux sur le réflecteur de représentation (12).
  11. Dispositif d'éclairage (1) selon la revendication 10, caractérisé en ce que l'élément optique (18) présente une surface au moins partiellement réfléchissante qui réfléchit sur le réflecteur de représentation (12) au moins une partie (33) des rayons lumineux qui frappent l'élément optique (18).
  12. Dispositif d'éclairage (1) selon la revendication 11, caractérisé en ce que la surface partiellement réfléchissante de l'élément optique (18) réfléchit une première partie (33) des rayons lumineux qui frappent l'élément optique (18) sur le réflecteur de représentation (12), et transmet une seconde partie (31) des rayons lumineux qui frappent l'élément optique (18) à travers l'élément optique (18).
  13. Dispositif d'éclairage (1) selon la revendication 12, caractérisé en ce que la seconde partie (31) des rayons lumineux transmise par l'élément optique (18) sort de l'élément optique (18) dans la direction de sortie de la lumière.
  14. Dispositif d'éclairage (1) selon la revendication 13, caractérisé en ce que la partie (31) des rayons lumineux sortant de l'élément optique (18) sort également du dispositif d'éclairage (1) et forme une lumière diffusée non focalisée permettant d'agrandir une image de signal de la répartition lumineuse reproduite par le réflecteur de représentation (12) afin que d'autres usagers de la route ne perçoivent pas de manière subjective la répartition de la lumière générée comme désagréablement lumineuse.
  15. Dispositif d'éclairage (1) selon la revendication 13, caractérisé en ce que la partie (31) des rayons lumineux sortant de l'élément optique (18) contribue à la répartition lumineuse désirée.
  16. Dispositif d'éclairage (1) selon la revendication 14 ou 15, caractérisé en ce que la partie (31) des rayons lumineux sortant de l'élément optique (18) éclaire, lors d'une répartition lumineuse (23, 27) diaphragmée, une zone (30) de la répartition lumineuse (23, 27) au-dessus d'une limite clair-obscur (24).
  17. Dispositif d'éclairage (1) selon l'une des revendications 1 à 16, caractérisé en ce qu'un module lumineux du dispositif d'éclairage (1) comprend la source lumineuse à semi-conducteurs (5), au moins au nombre de une, l'optique primaire (8), au moins au nombre de une, le réflecteur de représentation (12), la structure à diaphragme (16) et/ou l'élément optique (18), et en ce que le module lumineux ou simplement des parties du module lumineux sont disposés de façon à pouvoir pivoter autour d'un axe horizontal (34) et/ou d'un axe vertical (35) par rapport à un boîtier (2) du dispositif d'éclairage (1).
EP12152524.0A 2011-02-23 2012-01-25 Dispositif d'éclairage prévu pour l'intégration dans un véhicule automobile Active EP2492580B1 (fr)

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CN113790403B (zh) * 2021-08-16 2024-02-13 惠州市西顿工业发展有限公司 一种模拟自然光照的灯具
CN117730230A (zh) * 2021-09-18 2024-03-19 华域视觉科技(上海)有限公司 用于车灯照明装置的光学反射系统和车灯照明装置

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CN102705765A (zh) 2012-10-03
DE102011004569A1 (de) 2012-08-23
EP2492580A3 (fr) 2016-01-20
EP2492580A2 (fr) 2012-08-29
CN102705765B (zh) 2016-12-14

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