EP2993390B1 - Phare pour un vehicule automobile et vehicule automobile - Google Patents

Phare pour un vehicule automobile et vehicule automobile Download PDF

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Publication number
EP2993390B1
EP2993390B1 EP15002484.2A EP15002484A EP2993390B1 EP 2993390 B1 EP2993390 B1 EP 2993390B1 EP 15002484 A EP15002484 A EP 15002484A EP 2993390 B1 EP2993390 B1 EP 2993390B1
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EP
European Patent Office
Prior art keywords
light
headlight
mirror arrangement
generating device
converter element
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
EP15002484.2A
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German (de)
English (en)
Other versions
EP2993390A1 (fr
Inventor
Jürgen Wilhelmy
Carsten Gut
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.)
Audi AG
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Audi AG
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Filing date
Publication date
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Publication of EP2993390A1 publication Critical patent/EP2993390A1/fr
Application granted granted Critical
Publication of EP2993390B1 publication Critical patent/EP2993390B1/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
    • F21S41/10—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
    • F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
    • 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
    • F21S41/16—Laser 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
    • F21S41/20—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
    • F21S41/30—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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors

Definitions

  • the invention relates to a headlight for a motor vehicle according to the preamble of claim 1. Furthermore, the invention relates to a motor vehicle.
  • the EP 2 706 287 A2 describes a headlight for a motor vehicle with a light generating device and a mirror arrangement which has a multiplicity of micromirror elements. Using this headlight, a light distribution can be generated which has a lower luminance in an edge area than in a central area.
  • the US 2011/0280032 A1 describes a laser headlight with a laser light source and a converter element for a motor vehicle.
  • the DE 10 2008 022 795 A1 describes a motor vehicle headlight with at least one semiconductor laser as the light source of the motor vehicle headlight and at least one light modulator, which changes the emission characteristic of the light emitted by the semiconductor laser in a predetermined manner.
  • a headlight for a motor vehicle with a light generating device and a mirror arrangement, which consists of a plurality of micromirror elements.
  • These micromirror elements can be adjusted independently of one another at least between a reflection position, in which the light generated by the light generating device is reflected by the micromirror element out of the headlight, and an absorber position, in which the light is largely or completely reflected by the micromirror element segment into an absorption region.
  • the light distribution of the headlamp can thus be changed, for example, such that a driver of an oncoming motor vehicle is not dazzled.
  • Such a headlight is in particular that a high electrical power is required.
  • a headlight for a motor vehicle with a light generating device and a mirror arrangement comprising a plurality of LED light sources.
  • Each LED light source is assigned a reflector as an optical element, which together form an optical unit.
  • this is intended to implement a high-beam function of the headlamp, in which the light distribution of the headlamp can be adapted to the requirements of a traffic area.
  • Such a headlamp with one reflector per LED light source is particularly complex and expensive.
  • the US 2012/0106178 A1 describes a headlight for a motor vehicle, in which a laser beam excites a converter element to fluoresce. The light emitted by the fluorescent converter element is reflected out of the headlight by a concave mirror.
  • a plurality of lasers and / or converter elements can also be provided, with each laser and / or converter element then being assigned a concave mirror.
  • a disadvantage of the necessarily used concave mirrors is that they cannot be configured as adjustable mirror elements. This is prevented by the concave shape of the mirror, which is also particularly expensive to manufacture.
  • a digital display device for a vehicle includes an optical machine that includes a light source, a reflection type digital light reflector with a plurality of micromirror elements, a light irradiation unit that radiates reflected light from the reflection type digital light reflector onto a road surface, and the like, and includes an information display unit.
  • a lighting device for vehicles which has a light source and a reflector, through which light is reflected onto a deflection device.
  • the deflection device has a multiplicity of individual reflecting elements which can be moved independently of one another between at least two different positions. By moving the individual elements, parts of the light beam can be switched on or off in a targeted manner and the characteristics of the light beam emerging from the lighting device can thus be changed.
  • the object of the present invention is to provide a headlight for a motor vehicle and a motor vehicle itself which are particularly inexpensive.
  • the light generating device comprises at least one semiconductor light source and at least one converter element arranged in the beam path of the headlamp in front of the mirror arrangement formed from micromirrors and excitable by the semiconductor light source to light up, wherein the converter element is designed to emit the light emitted by it onto the mirror arrangement.
  • a semiconductor light source generates particularly little heat, requires particularly low electrical power and has a particularly long service life.
  • respective other components of the headlight, in particular optical elements are subjected to particularly little thermal stress.
  • the converter element can be formed by a material that can be excited to fluoresce by means of the semiconductor light source. A preferred light distribution of the light emitted by the converter element can thus be generated in a particularly simple and inexpensive manner. Alternatively, it can also be formed, for example, from a material that only scatters the light emitted by the semiconductor light source. No additional heat is generated by the converter element, so that the thermal load on the headlamp is particularly low.
  • the beam path in the headlight is as follows:
  • the semiconductor light source generates light. This light hits the converter element, causing it to glow.
  • the light thus emitted by the converter element then strikes the mirror arrangement, which consists of the adjustable micromirror elements. Depending on the position, the light is then reflected by the micromirror elements out of the headlight or into an absorption area.
  • the absorption range is common formed by a component with a black color surface which absorbs at least a large part of the light.
  • This arrangement has two advantages. First, the mirror assembly is protected from heat generated by the semiconductor light source. The thermally sensitive mirror arrangement is therefore essentially heated only by the light striking it.
  • the advantage of the mirror arrangement with adjustable micromirror elements be used, namely that the light distribution of the headlight can be adjusted.
  • the converter element is arranged in the beam path behind the mirror arrangement, the light distribution of the headlamp can otherwise only be changed to a limited extent.
  • the converter element is designed to emit light with a location-dependent luminance.
  • the light emitted by the converter element can be preformed particularly easily.
  • the optical device for preforming can be formed by the converter element, so that a particularly compact headlight can be realized.
  • the converter element emits light that strikes the edge region of the mirror arrangement with a lower luminance than in the central region of the mirror arrangement.
  • the converter element can, for example, generate a location-dependent luminance by means of a different, location-dependent thickness.
  • a converter element that is thinner in its edge region can emit light with a lower luminance there, for example, than in a thicker central region.
  • the etendue of the converter element is smaller than the etendue of the mirror arrangement.
  • the etendue measures the extent of a beam in the geometrical optics and is composed of a cross-section and a solid angle.
  • the etendue is a preservation factor of the geometrical optics and does not change when a beam passes through an optical system.
  • the Etendue describes how strong the light is already fanned out. Because the etendue of the converter element is less than or equal to the etendue of the mirror arrangement, no light output is lost when the light emitted by the converter element is reflected by the mirror arrangement.
  • the optical device comprises at least one reflector and / or an optical lens.
  • the light emitted by the converter element can thus be preformed in a particularly simple and particularly inexpensive manner.
  • the optical device for preforming is formed by the converter element.
  • the at least one semiconductor light source comprises a light-emitting diode or a laser.
  • Light-emitting diodes are particularly cheap compared to lasers and also generate very little heat.
  • the laser offers the advantage that its luminance can be scaled almost arbitrarily, whereby the luminance can be increased with the same area. This means that with the same luminance of the light emerging from the headlight, a particularly small mirror arrangement can be used when using a laser. As a result, the mirror arrangement is particularly cost-effective and requires very little installation space.
  • the light generating device is designed to generate light with at least two different spectral distributions.
  • the spectral distribution of the light describes the color of the light.
  • the headlight can thus be used in a particularly simple manner to project information for the driver onto the road in front of the motor vehicle. This information can be, for example, the speed of the motor vehicle, route instructions from a navigation system or generally all information that is otherwise given to the driver in the cockpit of the motor vehicle.
  • individual micromirrors of the mirror arrangement are deliberately adjusted between the reflection position and the absorber position.
  • the headlight can take over the function of a turn signal. Accordingly, no additional elements or components are necessary to integrate a turn signal function in the headlamp, which makes such a headlamp particularly economical.
  • the light generating device comprises at least two semiconductor light sources for generating and / or two converter elements for emitting light with the different spectral distributions.
  • This allows light with different spectral distributions to be generated in a particularly simple and inexpensive manner become.
  • it is necessary, for example, to provide a movable wheel in the headlight with different colored covers attached to it in the beam path of the light.
  • This wheel and a controller By means of this wheel and a controller, light with different spectral distributions can then be emitted from the headlight.
  • This solution is known for example from so-called projectors from home use.
  • Such an additional wheel is particularly expensive, requires a particularly large amount of installation space and a particularly complex control device. All of these disadvantages can be avoided by using at least two semiconductor light sources and / or two converter elements. Accordingly, a headlight designed in this way is particularly cost-effective and particularly space-saving.
  • the light generating device comprises a light guide for transporting the light generated by the at least one semiconductor light source to the at least one converter element.
  • the light guide therefore makes it possible that the beam path of the light generated by the at least one semiconductor light source does not have to lead in a straight line to the at least one converter element. Rather, the light generated follows the course of the light guide. This enables a free choice of the position of the at least one semiconductor light source and thus a particularly compact headlight.
  • the light guide also has the advantage that less light is deflected past the mirror arrangement by scattering. Overall, the etendue of the semiconductor light source can be particularly well adapted to the etendue of the converter element and thus also the mirror arrangement. The efficiency of the headlamp designed in this way is particularly high.
  • the headlight comprises an optical device, by means of which a luminance distribution of the light emitted by the converter element is preformed in such a way that the light has a lower luminance when it strikes the mirror arrangement in an edge region of the mirror arrangement than in a central region of the mirror arrangement.
  • the luminance in the edge region should be ten percent lower, in particular twenty percent lower than in the central region of the mirror arrangement.
  • Fig. 1 shows a schematic plan view of a motor vehicle 10 with two headlights 12, which can be controlled by a control device 14.
  • the headlights 12 can be used to generate light which illuminates an area of a road with a light distribution 46 in front of the motor vehicle 10.
  • Each of the headlights 12 can have: a light generating device 18 and a mirror arrangement 28, which consists of a plurality of micromirror elements, which between at least one reflection position, in which the light generated by the light generating device 18 is reflected by the micromirror element out of the headlight 12, and an absorber position in which the light is largely or completely reflected by the micromirror segment into an absorption area, the micromirror elements being adjustable independently of one another.
  • the light generating device 18 comprises at least one semiconductor light source 16 and at least one converter element 24, which is arranged in the beam path of the headlight 12 in front of the mirror arrangement (28) and can be excited by the semiconductor light source 16, the converter element 24 for emitting the light emitted by it onto the mirror arrangement 28 is designed.
  • Fig. 2 shows such a headlight 12 in a schematic illustration, at least in sections Fig. 2
  • three semiconductor light sources 16 of the light generating device 18 each generate a laser beam 20.
  • the semiconductor light sources 16 are thus designed here as lasers 22, which enable the generation of light with a particularly high luminance.
  • the semiconductor light source 16 can also comprise a light emitting diode (LED).
  • the laser beams 20 impinge on the converter element 24 of the light generating device 18.
  • the converter element 24 has a fluorescent material which is stimulated to shine and thus emit light by absorption of the laser beams 20.
  • the converter element 24 can, for example, be designed such that it is excited with a blue or red laser beam 20 to emit white light. Corresponding materials are known from the prior art. The emission of this light is illustrated by the dashed lines 26.
  • the light illustrated by lines 26 also makes it clear that the etendue of converter element 24 is less than or equal to the etendue of mirror arrangement 28.
  • the light generating device 18 thus comprises at least one semiconductor light source 16 and at least one converter element 24 which is arranged in the beam path of the headlight 12 and can be excited by the semiconductor light source 16, the converter element 24 being designed to emit the light emitted by it onto the mirror arrangement 28.
  • the mirror arrangement 28 consists of a multiplicity of micromirror elements, which lie between at least one reflection position, in which the light generated by the light generating device 18 is reflected by the micromirror element out of the headlight 12, and an absorber position, in which the light is largely or completely from the micromirror segment is reflected into an absorption area, can be adjusted independently of one another.
  • Such a mirror arrangement 28 with a large number of micromirror elements is also referred to as a digital micromirror device or DMD for short.
  • Each micromirror element can be individually adjusted in its angle and has two stable end states between which the micromirror element can, for example, switch up to 5000 times within one second.
  • a period of time for which the micromirror element remains in the reflection position and / or the absorber position can be varied.
  • the micromirror element usually swings back and forth permanently between these states. Only by changing the length of time for which the micromirror element remains in a position is a perceived reflection strength varied for this viewer in this mirror element. In this case, reflections from the headlight 12 can be generated for the viewer with hardly or no longer perceptible losses up to a no longer perceptible reflection out of the headlight 12 by the micromirror element.
  • the light reflected by the mirror arrangement 28 with the micromirror elements in the reflection position passes through a lens 30, as shown in FIG Fig. 1 is shown, out of the headlight 12.
  • the brightness of individual pixels of the light distribution 46 of the headlight 12 can be specifically set and changed quickly. Accordingly, with the mirror arrangement 28 Individual areas of the light distribution 46 of the headlights 12 are specifically hidden by the individually adjustable micromirror elements. A weakening of individual areas is also possible.
  • Fig. 3 shows a schematic representation of an alternative embodiment of the in Fig. 2 shown headlight 12.
  • the light generating device 18 additionally comprises a light guide 32 for transporting the light generated by the semiconductor light source 16 to the converter element 24.
  • the light guide 32 can particularly reduce losses due to scattering by ensuring that the light generated by the semiconductor light source 16 bundled meets the converter element 24.
  • the semiconductor light source 16 can thus be positioned on the converter element 24 independently of a straight line of sight, since the light generated by the semiconductor light source 16 follows the shape of the light guide 32. This makes it possible to create a particularly compact headlight 12.
  • Positioning the semiconductor light source 16 independently of the position of the converter element 24 by means of the light guide 32 also makes it possible to reduce the heat radiation from the semiconductor light source 16 to thermally sensitive components of the headlight 12.
  • Fig. 4 shows a schematic representation of an alternative embodiment of the in Fig. 2
  • the headlight 12 shown comprising an optical device 34, with which a luminance distribution of the light emitted by the converter element 24 is preformed such that the light, when it hits the mirror arrangement 28, has a lower luminance in an edge region of the mirror arrangement 28 than in a central region of the Has mirror arrangement 28.
  • Fig. 4 shows how the light emitted by the converter element 24 first strikes the optical device 34 and then continues to radiate onto the mirror arrangement 28. The course of the beam path is illustrated here by the dashed lines 36.
  • FIG. 5 An exemplary light distribution 50 generated in this way on the mirror arrangement 28 is in the graph of FIG Fig. 5 shown.
  • the y and x axes designate the surface coordinates on the mirror arrangement 28 relative to a center point.
  • the relative luminance of the light incident on the mirror arrangement 28 over the surface is plotted on the z-axis. The highest value corresponds to the maximum luminance.
  • the central region is identified by the reference symbol 38, while the edge region is identified by the reference symbol 40.
  • Good to see is that the luminosity takes its maximum in the central region 38, while it has a substantially lower luminance in the edge region 40 of the mirror arrangement 28.
  • the light thus preformed is thus optimized for the light distribution 50 of a high beam.
  • the light distribution 50 can also be preformed for a low beam or other functions. It is therefore no longer necessary to adjust individual micromirror elements of the mirror arrangement 28 in the absorber position in the edge region 40 of the mirror arrangement 28 for a particularly long time, in order to generate the desired light distribution 46 of the headlights 12 when the light is reflected by the mirror arrangement 28. Accordingly, less light is lost in the absorption region of the headlights 12 when the light distribution 46 is generated by the headlights 12, so that the headlight 12 is particularly efficient.
  • Fig. 6 shows a schematic representation of a further alternative embodiment of the in Fig. 2 shown headlight 12.
  • the light generating device 18 is designed here to generate light with at least two different spectral distributions.
  • the example shown is a combination of the semiconductor light source 16 with the converter element 24 designed to generate white light.
  • a further semiconductor light source 16 with a further converter element 24 is designed to generate yellow light.
  • the light generated in this way with different spectral distributions strikes different areas of the mirror arrangement 28, so that the light distribution of these two different spectral distributions can be adjusted particularly easily when generating the light distribution 46 on the street.
  • Fig. 1 shown an example.
  • the white light is used to illuminate a large portion 42 of the street.
  • the yellow light is used to illuminate only a small partial area 44 of the street or the light distribution 46 in relation to the vehicle at the front left. This allows, for example, a clearly visible turn signal to be projected onto the road for other road users.
  • two different semiconductor light sources 16 to excite only one converter element 24 for emitting light with different spectral distributions.
  • only one semiconductor light source 16 it is alternatively possible for only one semiconductor light source 16 to have two different converter elements 24, each for emitting light with a different one Stimulates spectral distribution.
  • the light with different spectral distributions does not have to strike different areas of the mirror arrangement 28, but can alternatively also radiate onto the entire mirror arrangement 28.
  • all of the alternatives mentioned require intelligent control of the light generating device 18 and / or the mirror arrangement 28, for example to illuminate the subregions 42 and 44 of the light distribution 46 with light with a different spectral distribution in each case. If necessary, however, it is possible to implement a particularly compact headlight 12.
  • the life of the headlamp 12 is particularly long. There is a particularly low heat input to the mirror arrangement 28, so that it is heated particularly little and a particularly long service life and high efficiency of the mirror arrangement 28 is ensured. A particularly low cooling effort is required for the headlight 12, which is particularly important in the automotive field.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Claims (7)

  1. Phare (12) pour un véhicule automobile (10), avec un dispositif de génération de lumière (18) et un agencement de miroir (28), qui présente une pluralité d'éléments micromiroirs, qui peuvent être déplacés entre au moins une position de réflexion, dans laquelle la lumière générée par le dispositif de génération de lumière (18) est réfléchie hors du phare (12) par l'élément micromiroir, et une position d'absorption, dans laquelle la lumière est en grande partie ou entièrement réfléchie par le segment à micromiroir dans une zone d'absorption, sont réglables indépendamment les uns des autres, le phare (12) comprenant un dispositif optique (34), moyennant quoi une répartition de la luminance de la lumière émise est préformée de sorte que la lumière, lorsqu'elle frappe l'agencement de miroir (28), présente une luminance plus faible dans une zone de bord (40) du dispositif à miroir (28) que dans une zone centrale (38) de l'agencement de miroir (28), le dispositif de génération de lumière (18) comprenant au moins une source de lumière à semi-conducteur (16),
    caractérisé en ce que
    le dispositif de génération de lumière (18) comprend en outre au moins un élément convertisseur (24) disposé dans le trajet du faisceau du phare (12) devant le dispositif de génération de lumière (28) et pouvant être excité par la source de lumière à semi-conducteur (16) pour émettre de la lumière, l'élément convertisseur (24) étant conçu pour rayonner la lumière qu'il émet sur l'agencement de miroir (28),
    l'élément convertisseur (24) étant conçu pour émettre de la lumière avec une luminance dépendant du lieu,
    l'étendue de l'élément convertisseur (24) étant plus petite que l'étendue de l'agencement de miroir (28), et
    le dispositif optique (34) comprenant au moins un réflecteur et/ou une lentille optique.
  2. Phare (12) pour un véhicule automobile (10), avec un dispositif de génération de lumière (18) et un agencement de miroir (28), qui présente une pluralité d'éléments micromiroirs, qui peuvent être déplacés entre au moins une position de réflexion, dans laquelle la lumière générée par le dispositif de génération de lumière (18) est réfléchie hors du phare (12) par l'élément micromiroir, et une position d'absorption, dans laquelle la lumière est en grande partie ou entièrement réfléchie par le segment à micromiroir dans une zone d'absorption, sont réglables indépendamment les uns des autres, le phare (12) comprenant un dispositif optique (34), moyennant quoi une répartition de la luminance de la lumière émise est préformée de sorte que la lumière, lorsqu'elle frappe l'agencement de miroir (28), présente une luminance plus faible dans une zone de bord (40) du dispositif à miroir (28) que dans une zone centrale (38) de l'agencement de miroir (28), le dispositif de génération de lumière (18) comprenant au moins une source de lumière à semi-conducteur (16),
    caractérisé en ce que
    le dispositif de génération de lumière (18) comprend en outre au moins un élément convertisseur (24) disposé dans le trajet du faisceau du phare (12) devant le dispositif de génération de lumière (28) et pouvant être excité par la source de lumière à semi-conducteur (16) pour émettre de la lumière, l'élément convertisseur (24) étant conçu pour rayonner la lumière qu'il émet sur l'agencement de miroir (28),
    l'élément convertisseur (24) étant conçu pour émettre de la lumière avec une luminance dépendant du lieu,
    le dispositif optique de préformage étant formé par l'élément convertisseur (24).
  3. Phare (12) selon la revendication 1 ou 2,
    caractérisé en ce que
    l'au moins une source de lumière à semi-conducteur (16) comprend une diode électroluminescente ou un laser (20).
  4. Phare (12) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif de génération de lumière (18) est conçu pour générer de la lumière avec au moins deux répartitions spectrales différentes.
  5. Phare (12) selon la revendication 4,
    caractérisé en ce que
    le dispositif de génération de lumière (18) comprend au moins deux sources de lumière à semi-conducteur (16) pour la génération et/ou deux éléments convertisseur (24) pour l'émission de lumière avec les différentes répartitions spectrales.
  6. Phare (12) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif de génération de lumière (18) comprend un guide de lumière (32) pour transporter la lumière générée par l'au moins une source de lumière à semi-conducteur (16) vers l'au moins un élément convertisseur (24).
  7. Véhicule automobile (10) avec au moins un phare (12) selon l'une quelconque des revendications 1 à 6.
EP15002484.2A 2014-09-06 2015-08-21 Phare pour un vehicule automobile et vehicule automobile Active EP2993390B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014013202.1A DE102014013202B3 (de) 2014-09-06 2014-09-06 Scheinwerfer für einen Kraftwagen sowie ein Kraftwagen

Publications (2)

Publication Number Publication Date
EP2993390A1 EP2993390A1 (fr) 2016-03-09
EP2993390B1 true EP2993390B1 (fr) 2020-06-17

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EP (1) EP2993390B1 (fr)
DE (1) DE102014013202B3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017162760A (ja) * 2016-03-11 2017-09-14 スタンレー電気株式会社 車両用前照灯装置
CN109827144B (zh) * 2018-10-23 2023-09-26 华域视觉科技(上海)有限公司 用于灯具同一功能区域实现两种均匀发光效果的光学***
EP3819534A1 (fr) 2019-11-08 2021-05-12 ZKW Group GmbH Dispositif d'éclairage pour un phare de véhicule automobile

Citations (8)

* Cited by examiner, † Cited by third party
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US20020008972A1 (en) * 1999-12-28 2002-01-24 Dewald Duane Scott Combining two lamps for use with a rod integrator projection system
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