EP3388734B1 - Unité optique primaire pour un module d'éclairage de phare de véhicule - Google Patents

Unité optique primaire pour un module d'éclairage de phare de véhicule Download PDF

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Publication number
EP3388734B1
EP3388734B1 EP18164117.6A EP18164117A EP3388734B1 EP 3388734 B1 EP3388734 B1 EP 3388734B1 EP 18164117 A EP18164117 A EP 18164117A EP 3388734 B1 EP3388734 B1 EP 3388734B1
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EP
European Patent Office
Prior art keywords
light
light conducting
conducting segment
per
module
Prior art date
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Application number
EP18164117.6A
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German (de)
English (en)
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EP3388734A1 (fr
Inventor
Ernst-Olaf Rosenhahn
Daniel Rieger
Christoph Bürker
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 Germany GmbH
Original Assignee
Automotive Lighting Reutlingen GmbH
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Publication of EP3388734A1 publication Critical patent/EP3388734A1/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
    • F21S41/141—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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • 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 - F21S41/2805
    • 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
    • F21S41/60—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

Definitions

  • the invention relates to a light module of a motor vehicle lighting device, as from DE 10 2014 205 994 A1 and EP 2 865 937 A1 famous.
  • a light guide which comprises a number of light guide plates and a light source assigned to the respective light guide plate.
  • the light guide creates a beam of light consisting of a number of vertical pixels. Each vertical pixel can be turned on or off.
  • the focus of the light on a point of the exit surface is more extensive not sufficient near the optical axis.
  • no homogeneous and no soft vertical runout is produced, which leads to an unaesthetic edge in the emitted light distribution.
  • the proposed primary optics unit for a light module of a motor vehicle lighting device comprises a plurality of light-guiding sections, in particular designed like plates, with each light-guiding section being assigned a respective light source.
  • the light guide sections are designed to form a desired intermediate light distribution from light from the plurality of light sources.
  • the respective fiber-optics section is delimited by a first coupling surface in such a way that light generated by the light source assigned to the fiber-optics section can be coupled into the fiber-optics section.
  • the respective fiber-optics section is further such a reflection surface arranged opposite the first coupling-in surface limited, so that the light originating from the first coupling-in surface and impinging on the reflection surface can be deflected in such a way that it can be focused in the region of a coupling-out surface of the fiber-optics section.
  • the respective fiber-optics section is also delimited by a second coupling surface in such a way that light generated by the light source assigned to the fiber-optics section can be coupled into the fiber-optics section.
  • the respective fiber-optics section is additionally delimited by the decoupling surface in such a way that the light deflected by the reflection surface and the light incident from the second coupling-in surface can be coupled out of the fiber-optics section to generate the intermediate light distribution.
  • the purpose of the plurality of fiber-optics sections is to also operate the high beam distribution as a partial high beam or in the form of a matrix function, in that individual light sources can be switched on and off independently of one another.
  • a larger luminous flux can advantageously be coupled into the fiber-optics section and the efficiency is increased.
  • a high illuminance around 0°/0°, ie in the direction of the forward-facing optical axis of the light module is achieved, which provides the vehicle driver with a high visual range.
  • the superimposition of the light beams in the light-guiding section and the subsequent joint decoupling can improve the homogeneity in a vertical run-out of the light distribution.
  • This improvement in homogeneity in the vertical tail of the high beam distribution includes a smooth vertical tail with no transition visible to the vehicle driver.
  • disturbing gradients and unaesthetic sharp edges in the radiated high beam distribution can be avoided in this way.
  • the radiated high beam light distribution is thus improved, as a result of which an improved view is made possible for the vehicle driver. Consequently, road safety is also increased.
  • An advantageous embodiment is characterized in that the reflection surface follows an ellipse at least in sections in a section which runs in an imaginary plate plane of the light-guiding section. This enables the light beams to be focused in the area of the decoupling surface.
  • An advantageous embodiment is characterized in that the decoupling surfaces of the plurality of fiber-optics sections form a common decoupling surface.
  • the common decoupling surface also achieves horizontal homogenization of the emitted high beam distribution.
  • the light-guiding sections open into a common light-guiding body in the direction of the common decoupling surface. Consequently, it is not necessary for the fiber-optics sections to merge directly into a common decoupling surface, rather the fiber-optics sections can also abut against the common coupling-out surface in order to bring about light transmission.
  • An advantageous embodiment is characterized in that the common decoupling surface of the fiber-optics sections follows a Petzval surface of an associated secondary optics unit. Consequently, the common serves Coupling surface as an image plane and the imaging accuracy is increased.
  • An advantageous embodiment is characterized in that the light source is directed with its main emission direction onto the first coupling surface. This means that a maximum of the luminous flux emitted by the light source is guided into the area of the exit surface for focusing.
  • An advantageous embodiment is characterized in that the first coupling surface delimits the light-guiding section in a convex shape in a section which runs perpendicularly to the course of the associated narrow side of the light-guiding section.
  • the incoming light is parallelized as soon as it is coupled in, which has a positive effect on efficiency.
  • color effects that could arise due to dispersion in the area of the secondary optics unit are prevented or at least reduced.
  • An advantageous embodiment is characterized in that the first coupling surface delimits the light-guiding section in a convex shape in a section which runs in an imaginary plate plane of the light-guiding section. As a result, the coupled-in light can be guided better in the direction of the reflection surface.
  • An advantageous embodiment is characterized in that the second in-coupling surface delimits the light-guiding section in a concave shape in a section which runs perpendicularly to the course of the associated narrow side of the light-guiding section.
  • This concave training allows an expansion of the bundle of rays during coupling in order to fan out the vertical run-out of the emitted high-beam distribution in the sense of a horizontal width.
  • An advantageous embodiment is characterized in that the second in-coupling surface delimits the light-guiding section in a convex shape in a section which runs in the imaginary plate plane of the light-guiding section. This improves the homogeneity of the vertical runout of the emitted high beam distribution.
  • An advantageous embodiment is characterized in that the decoupling surface of a light-guiding section arranged centrally between further light-guiding sections follows, at least in sections, an outer surface of a cylinder in a transverse section. This advantageously reduces the illuminance by 0°/0°, i. H. 0° horizontal and 0° vertical in the direction of the optical axis of the light module.
  • An advantageous embodiment is characterized in that the decoupling surfaces of the fiber-optics sections follow a respective cylinder outer surface at least in sections in a transverse section.
  • the light is bundled in relation to the fiber-optics section and the efficiency is increased since less light is lost.
  • undesirable color effects are reduced or avoided by dispersion.
  • An advantageous embodiment is characterized in that the decoupling surface in a sagittal section of the optical axis of the associated secondary optics unit facing the light-guiding section limited convexly. In this way, light can advantageously be refracted in the direction of the secondary optics unit and is not lost. As a result, this results in an increase in efficiency and an increase in the maximum illuminance.
  • An advantageous embodiment is characterized in that the decoupling surface in the sagittal section facing away from the optical axis of the associated secondary optics unit delimits the light guide section in a concave manner. This has an advantageous effect on the vertical outlet downwards. In particular, a softer and more homogeneous run-out zone can be created.
  • An advantageous embodiment is characterized in that the decoupling surface has a wavy profile in the sagittal section.
  • the wavy profile improves the homogeneity of the high beam distribution emitted by the secondary optics unit, since in particular the light coming from the second coupling surface and the light coming from the reflection surface are more strongly mixed.
  • An advantageous embodiment is characterized in that the respective fiber-optics section is delimited by a third coupling surface in such a way that light generated by the light source assigned to the fiber-optics section can be coupled into the fiber-optics section, with the fiber-optics section being delimited by a further reflection surface arranged opposite the third coupling surface is, so that the light striking the further reflection surface from the third in-coupling surface can be deflected in such a way that it is in the region of a further out-coupling surface of the light-guiding section Generation of partial areas of the intermediate light distribution can be decoupled.
  • This advantageously makes the vertical outlet more homogeneous towards the top. Consequently, the efficiency of the primary optics unit is further increased.
  • the maximum height of the vertical runout in the emitted high beam distribution is increased if the second exit surface is below the light source associated with the light guide section.
  • the light module comprises a further primary optics unit, the secondary optics unit converting a further intermediate light distribution emitted by the further primary optics unit into a low beam distribution emitted by the light module.
  • a low beam and a matrix high beam are thus advantageously integrated in a single light module, with a common secondary optics unit being used.
  • figure 1 1 shows, in schematic form, a primary optics unit 2 which comprises a number of light-guiding sections 4a and 4b.
  • a light source 6a is assigned to the first fiber-optics section 4a.
  • a second light source 6b is assigned to the second fiber-optics section 4b.
  • the light guide sections 4a, 4b are each plate-shaped, with the respective light guide section 4a, 4b spanning an imaginary respective plate plane, which in the present schematic representation is located in the plane of the drawing or approximately parallel thereto.
  • the fiber-optics sections 4a and 4b are each delimited by two lateral fiber-optics surfaces running essentially parallel to one another.
  • the light guide portions 4a, 4b,... are as follows explained, preferably fanned out to one another, ie arranged at an angle to one another.
  • a high beam can be operated as a partial high beam, with light only being radiated into a subset of the existing fiber optic sections 4a, 4b.
  • the light generated by the light source 6a impinges on a first in-coupling surface 8a of the light-guiding section 4a and is thus at least partially coupled into the light-guiding section 4a.
  • the light coupled into the fiber-optics section 4a impinges on a reflection surface 10a, which deflects the light under total reflection in such a way that the deflected light can be focused in the region of a decoupling surface 12a.
  • Light generated by the light source 6a impinges on a second coupling-in surface 14a of the light-guiding section 4a and is coupled into the light-guiding section 4a.
  • the light coupled in via the second coupling-in surface 14a is conducted in the light-guiding section 4a directly to the coupling-out surface 10a.
  • This direct supply means that the light coupled in via the second coupling-in surface 14a is not guided to the coupling-out surface 12a via the reflection surface 10a.
  • the light incident directly from the second coupling-in surface 14a onto the coupling-out surface 12a and the light incident from the reflection surface 10a onto the coupling-out surface 12a is coupled out via the coupling-out surface 12a in such a way that, together with the further Light guide section 4b a common intermediate light distribution 16 is radiated from the primary optics unit 2.
  • a light module 105 is shown in a schematic sagittal section, which includes the primary optics unit 2 .
  • a sagittal section is understood to mean any section which runs parallel to the xy plane shown.
  • the imaginary respective plate plane is located in particular in the middle within the respective light guide section 4a, 4b. Furthermore, the imaginary plane of the plate is equidistant from the delimiting sides. For reasons of clarity, only the light guide section 4a and the associated light source 6a are shown.
  • the rays coming from the reflection surface 10a are focused in a focus area 22, which is arranged in the vicinity of or at the outcoupling surface 12a.
  • the secondary optics unit 18 can also be a biconvex lens or a plano-convex lens.
  • a further primary optics unit 24 is shown, which can emit a further intermediate light distribution 26 in the direction of the secondary optics unit 18 .
  • the further intermediate light distribution 26 is converted into a low beam distribution 28 by the secondary optics unit 18 and emitted by the light module 105 .
  • the secondary optics unit 18 is constructed rotationally symmetrically around an optical axis 30 .
  • a transverse section xy through the optical axis 30 divides the light module space arranged counter to the x-direction into a first half-space 32 oriented counter to the z-direction and a half-space 34 oriented in the z-direction.
  • the primary optics unit 2 for the high beam is located in the ventral hemisphere 32 .
  • the other primary optics unit 24 is located in the dorsal hemisphere 34.
  • the two primary optics units 2 and 24 are separated from one another by a wall 36 .
  • the wall 36 can be designed, for example, in the direction of the primary optics unit 2 as a coated sheet metal in the form of a mirror screen.
  • the wall 36 rests against the narrow side of the number of fiber-optics sections 4 oriented in the z-direction. This means that rays that do not meet the condition for total reflection are also reflected at the upper narrow side.
  • the reflection surface 10a follows an ellipse at least in sections.
  • the reflection surface 10a preferably follows an ellipsoid of revolution at least in sections.
  • the coupling surfaces 8a and 14a adjoin one another and delimit a coupling space 38a with the associated light source 6a.
  • the light source 6a is embodied as a semiconductor light source component, for example.
  • the emission surface of the light source 6a defines a main emission direction, which is oriented in the z-direction here, for example.
  • the main emission direction of the light source 6a is not directed towards the second coupling surface 14a, but towards the first coupling surface 8a.
  • FIG 3 shows the light module 105 in a schematic transverse section.
  • the secondary optics unit 18 defines an imaginary Petzval surface 40 in the area of which the individual decoupling surfaces 12 of the respective fiber-optics sections 4 run.
  • the decoupling surfaces 12 form a common decoupling surface 42 which runs through the imaginary Petzval surface 40 .
  • the individual fiber optic sections 4a to 4j are connected in a common fiber optic body 44.
  • the individual light-guiding sections 4a to 4j protrude individually from the common light-guiding body 44 .
  • the Petzval surface 40 represents an image plane that is imaged on the road in front of the motor vehicle.
  • the secondary optics unit 18 images the gap 46 as a recess in the emitted high beam distribution 20 .
  • FIG 4 an embodiment of the light module 105 is shown in a schematic sagittal section.
  • the narrow side 48 oriented in the z-direction of the representatively illustrated light-conducting section 4a is provided, for example, with the reflective wall 36 .
  • the narrow side 48 can thus also be designated as a further reflection surface.
  • the first coupling surface 8a thus transitions into the third coupling surface 50a.
  • Light coupled in via the third coupling surface 50a, which originates from the associated light source 6a is guided to the narrow side 48 designed as a further reflection surface.
  • the further reflection surface deflects the incident light from the third coupling-in surface 50a in such a way that it is directed to a second coupling-out surface 52a.
  • the second decoupling surface 52a decouples the light incident from the further reflection surface in such a way that its light beams intersect in a region 54 in the sagittal sectional plane shown, this region being located outside of the fiber-optics section 4a.
  • the light decoupled via the second decoupling surface 52a is part of the intermediate light distribution 16.
  • the light is decoupled from the second decoupling surface 52a in such a way that the intermediate light distribution 16 produces a homogeneous vertical runout of the high beam distribution and that it passes through the secondary optics 18.
  • Formations of the first coupling surface 8a are shown in a section which runs perpendicularly to the course of the associated narrow side of the fiber-optics section 4a.
  • the cut is in figure 5 Parabola-shaped and in figure 6 Circular in design, which results in a convex delimitation of the fiber-optics section 4a in the region of the first coupling surface 8a.
  • figure 9 shows the coupling-in region of the light-guiding section 4a in a schematic sagittal section in an enlarged form.
  • the light source 6a is arranged in such a way that its main emission direction 56 is directed onto the first coupling surface 8a, which is convex in the section shown here as an example.
  • the second coupling surface 14a is arranged here, for example, facing away from the main emission direction 56 .
  • FIGs 10-12 each show an embodiment of the common decoupling surface 42 in a schematic transverse section.
  • a central convex curvature 58 is provided, which is assigned to the centrally arranged light guide section 4a.
  • a light guide section 4a other than the centrally arranged light guide section 4a can be responsible for the light generation around 0°/0°, which is why the aforementioned curvature 58 can also be arranged offset from the center.
  • such a convex curvature 58 is assigned to each fiber-optics section 4 .
  • the Figures 13-16 each show an embodiment of the common decoupling surface 42 in a schematic sagittal section.
  • the upper curvature 60 delimits the common light guide body 44 in a convex manner.
  • a middle section 64 lying in between is provided with a wave-shaped profile.
  • the wave-shaped profile is designed, for example, as a sinusoidal shape, a sawtooth shape, or in some other way.
  • a lighting device for motor vehicles is denoted by reference numeral 101 in its entirety.
  • the lighting device 101 is designed as a motor vehicle headlight.
  • the lighting device 101 includes a housing 102, which is preferably made of plastic.
  • the headlight housing 102 has a light exit opening which is closed by a transparent cover plate 104 .
  • the cover plate 104 is made of colorless plastic or glass.
  • the pane 104 can be designed as a so-called clear pane without optically effective profiles (for example prisms).
  • the pane 104 can be provided, at least in regions, with optically effective profiles which, in particular, cause the light passing through to be scattered.
  • two light modules 105, 106 are arranged in the illustrated embodiment.
  • headlight range control can be implemented.
  • more or fewer than the two light modules 105, 106 shown can also be provided in the headlight housing 102.
  • the proposed light module 105 it is possible in particular to reduce the number of light modules integrated in a headlight housing 102 by integrating a plurality of light functions. In this way, in particular, the installation space of the headlight is reduced overall without having to do without a matrix headlight function.
  • a control unit 107 is arranged in a control unit housing 108 on the outside of the headlight housing 102 .
  • the control device 107 can also be arranged at any other location of the lighting device 101 .
  • each of the light modules 105, 106 can have its own control unit, it being possible for the control units to be an integral part of the light modules 105, 106.
  • the control device 107 can also be arranged at a distance from the lighting device 101 .
  • Control unit 107 is used, in particular in combination with a camera unit, to control and/or regulate light modules 105, 106 or subcomponents of light modules 105, 106, such as light sources of light modules 105, 106, in order to combine light module 105, 106 in one to operate in partial high beam mode. In this partial high beam mode, only some of the existing light sources for generating a high beam are operated to generate light.
  • the light modules 105, 106 or the subcomponents are controlled by the control unit 107 via connecting lines 110, which are shown in figure 1 are represented only symbolically by a dashed line.
  • the light modules 105 , 106 are supplied with electrical energy via the lines 110 .
  • the lines 110 are routed through an opening in the headlight housing 102 into the control unit housing 108 led and connected there to the circuit of the control unit 107. If several control units are provided as an integral part of the light modules 105, 106, the lines 110 and the opening in the headlight housing 102 can be omitted.

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

Claims (19)

  1. Module d'éclairage (105) d'un dispositif d'éclairage de véhicule automobile (101), comprenant une unité optique primaire (2) et une unité optique secondaire (18), l'unité optique secondaire (18) transformant une répartition lumineuse intermédiaire (16) émise par l'unité optique primaire (2) en une répartition lumineuse pour feu de route (20) émise par le module d'éclairage (105),
    - l'unité optique primaire (2) comprenant une pluralité de sections de conduction lumineuse (4a, 4b, ...),
    - une source lumineuse (6a, 6b, ...) respective étant associée à chaque section de conduction lumineuse (4a, 4b, ...),
    - les sections de conduction lumineuse (4a, 4b, ...) étant conçues pour former la répartition lumineuse intermédiaire (16) souhaitée à partir de la lumière de la pluralité de sources lumineuse (6a, 6b, ...),
    - la section de conduction lumineuse (4a; 4b; ...) respective étant délimitée par une première surface de couplage (8a; 8b; ...) de telle manière que de la lumière générée par la source lumineuse (6a; 6b; ...) associée à la section de conduction lumineuse (4a; 4b; ...) soit couplée dans la section de conduction lumineuse (4a; 4b; ...) en traversant la première surface de couplage (8a; 8b; ...),
    - la section de conduction lumineuse (4a; 4b; ...) respective étant délimitée par une surface de réflexion (10a; 10b; ...) agencée vis-à-vis de la première surface de couplage (8a; 8b; ...) de telle manière que de la lumière provenant de la première surface de couplage (8a; 8b; ...) et frappant la surface de réflexion (10a; 10b; ...) est déviée de sorte qu'elle soit focalisée dans la région d'une surface de découplage (12a; 12b; ...),
    - la section de conduction lumineuse (4a; 4b; ...) respective étant délimitée par une seconde surface de couplage (14a; 14b; ...) de telle manière que de la lumière générée par la source lumineuse (6a; 6b; ...) associée à la section de conduction lumineuse (4a; 4b; ...) soit couplée dans la section de conduction lumineuse (4a; 4b; ...) en traversant la seconde surface de couplage (14a; 14b; ...), et
    - la section de conduction lumineuse (4a; 4b; ...) respective étant délimitée par la surface de découplage (12a; 12b; ...) de telle manière que la lumière déviée par la surface de réflexion (10a; 10b; ...) et la lumière provenant de la seconde surface de couplage (14a; 14b; ...) soient découplées de la section de conduction lumineuse (4a; 4b; ...) afin de générer la répartition lumineuse intermédiaire (16).
  2. Module d'éclairage (105) selon la revendication 1, la section de conduction lumineuse (4a; 4b; ...) respective étant délimitée par la seconde surface de couplage (14a; 14b; ...) et la surface de découplage (12a; 12b; ...) de telle manière que la lumière couplée par l'intermédiaire de la seconde surface de couplage (14a) soit guidée dans la section de conduction lumineuse (4a) directement vers la surface de découplage (10a).
  3. Module d'éclairage (105) selon la revendication 1 ou 2, les sections de conduction lumineuse (4a; 4b; ...) étant conçues en forme de plaque.
  4. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, la surface de réflexion (10a; 10b; ...) décrivant au moins par sections une ellipse au sein d'une coupe s'étendant dans un plan de plaque imaginaire de la section de conduction lumineuse (4a; 4b; ...).
  5. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, les surfaces de découplage (12a, 12b, ...) de la pluralité de sections de conduction lumineuse (4a, 4b, ...) formant une surface de découplage (42) commune.
  6. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, les sections de conduction lumineuse (4a, 4b, ...) débouchant, en direction de la surface de découplage (42) commune, dans un corps de conduction lumineuse (44) commun.
  7. Module d'éclairage (105) selon la revendication 5 ou 6, la surface de découplage (42) commune des sections de conduction lumineuse (4a, 4b, ...) décrivant une surface de Petzval (40) d'une unité optique secondaire (18) associée.
  8. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, la direction d'émission principale (56) de la source lumineuse (6a; 6b; ...) respective étant orientée vers la première surface de couplage (8a; 8b; ...) .
  9. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, la première surface de couplage (8a; 8b; ...) respective délimitant une forme convexe de la section de conduction lumineuse (4a; 4b; ...) au sein d'une coupe s'étendant perpendiculairement au tracé du côté étroit associé de la section de conduction lumineuse (4a; 4b; ...) .
  10. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, la première surface de couplage (8a; 8b; ...) respective délimitant une forme convexe de la section de conduction lumineuse (4a; 4b; ...) au sein d'une coupe s'étendant dans un plan de plaque imaginaire de la section de conduction lumineuse (4a; 4b; ...).
  11. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, la seconde surface de couplage (14a; 14b; ...) respective délimitant une forme concave de la section de conduction lumineuse (4a; 4b; ...) au sein d'une coupe s'étendant perpendiculairement au tracé du côté étroit associé de la section de conduction lumineuse (4a; 4b; ...) .
  12. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, la seconde surface de couplage (14a; 14b; ...) respective délimitant une forme convexe de la section de conduction lumineuse (14a; 14b; ...) au sein d'une coupe s'étendant dans le plan de plaque imaginaire de la section de conduction lumineuse (14a; 14b; ...) .
  13. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, la surface de découplage (42; 12a) d'une section de conduction lumineuse (4a) agencée de manière centrale entre d'autres sections de conduction lumineuse (4b, ..., 4f, ...) décrivant au moins par sections une surface extérieure cylindrique en coupe transversale (xy) .
  14. Module d'éclairage (105) selon l'une quelconque des revendications 1 à 11, les surfaces de découplage (42; 12a, 12b, ...) des sections de conduction lumineuse (4a, 4b, ...) décrivant une surface extérieure cylindrique respective au moins par sections en coupe transversale.
  15. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, la surface de découplage (42, 12a, 12b, ...) délimitant de manière convexe la section de conduction lumineuse (4a; 4b; ...) lorsqu'elle est tournée, en coupe sagittale, vers l'axe optique (30) de l'unité optique secondaire (18) associée.
  16. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, la surface de découplage (42, 12a, 12b, ...), en coupe sagittale et en se détournant de l'axe optique (30) de l'unité optique secondaire (18) associée, délimitant de manière concave la section de conduction lumineuse (4a; 4b; ...) .
  17. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, la surface de découplage (42, 12a, 12b, ...), en coupe sagittale, présentant un profil en forme d'onde.
  18. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, la section de conduction lumineuse (4a; 4b; ...) respective étant délimitée par une troisième surface de couplage (50a; 50b; ...) de telle manière que la lumière générée par la source lumineuse (6a; 6b; ...) associée à la section de conduction lumineuse (4a; 4b; ...) soit couplée dans la section de conduction lumineuse (4a; 4b; ...), la section de conduction lumineuse (4a; 4b; ...) respective étant délimitée par une surface de réflexion (48a; 48b; ...) supplémentaire agencée à l'opposé de la troisième surface de couplage (50a; 50b; ...) de telle manière que la lumière provenant de la troisième surface de couplage (50a; 50b; ...) et frappant la surface de réflexion (48a; 48b; ...) supplémentaire soit déviée de sorte qu'elle soit découplée dans la région d'une surface de découplage (52a; 52b; ...) supplémentaire de la section de conduction lumineuse (4a; 4b; ...) afin de générer des sous-régions de la répartition lumineuse intermédiaire (16) .
  19. Module d'éclairage (105) selon l'une quelconque des revendications précédentes, le module d'éclairage (105) comprenant une unité optique primaire (24) supplémentaire, et l'unité optique secondaire (18) transformant une répartition lumineuse intermédiaire (26) supplémentaire émise par l'unité optique primaire (24) supplémentaire en une répartition lumineuse phare baissé (28) émise par le module d'éclairage (105).
EP18164117.6A 2017-04-11 2018-03-27 Unité optique primaire pour un module d'éclairage de phare de véhicule Active EP3388734B1 (fr)

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JP7002046B2 (ja) * 2017-12-25 2022-02-04 パナソニックＩｐマネジメント株式会社 車両用前照灯
WO2020069916A1 (fr) * 2018-10-02 2020-04-09 Lumileds Holding B.V. Élément optique pour dispositif d'éclairage
DE102019107825A1 (de) * 2019-03-27 2020-10-01 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für ein Kraftfahrzeug
DE102020107075A1 (de) * 2020-03-15 2021-09-16 Docter Optics Se Scheinwerferlinse für einen Fahrzeugscheinwerfer
DE102020124423A1 (de) * 2020-09-18 2022-03-24 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für ein Kraftfahrzeug
EP4123217A1 (fr) * 2021-07-20 2023-01-25 ZKW Group GmbH Dispositif d'éclairage pour un phare de véhicule automobile
US12344159B2 (en) 2022-03-23 2025-07-01 Docter Optics Se Vehicle headlight

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US7918583B2 (en) * 2006-08-16 2011-04-05 Rpc Photonics, Inc. Illumination devices
DE102009053581B3 (de) * 2009-10-05 2011-03-03 Automotive Lighting Reutlingen Gmbh Lichtmodul für eine Beleuchtungseinrichtung eines Kraftfahrzeugs
JP5589930B2 (ja) * 2011-03-30 2014-09-17 豊田合成株式会社 照明装置
FR3012203B1 (fr) 2013-10-23 2015-10-30 Valeo Vision Dispositif d'eclairage comportant un guide de rayons lumineux
DE102014102496B4 (de) * 2014-02-26 2026-04-23 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für Fahrzeuge
DE102014205994B4 (de) * 2014-03-31 2023-02-02 Automotive Lighting Reutlingen Gmbh Lichtmodul mit Halbleiterlichtquelle und Vorsatzoptik und Kraftfahrzeugscheinwerfer mit einem solchen Lichtmodul
JP6340751B2 (ja) * 2014-08-25 2018-06-13 スタンレー電気株式会社 レンズ体及び車両用灯具
FR3032517B1 (fr) * 2015-02-05 2018-06-29 Valeo Vision Dispositif lumineux de vehicule
CN106090783B (zh) * 2016-08-04 2019-02-12 上海小糸车灯有限公司 一种近光车灯模组

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