EP2840298B1 - Module lumineux en courbe sans mécanique - Google Patents

Module lumineux en courbe sans mécanique Download PDF

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Publication number
EP2840298B1
EP2840298B1 EP14177201.2A EP14177201A EP2840298B1 EP 2840298 B1 EP2840298 B1 EP 2840298B1 EP 14177201 A EP14177201 A EP 14177201A EP 2840298 B1 EP2840298 B1 EP 2840298B1
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EP
European Patent Office
Prior art keywords
light
optical element
facets
light source
semiconductor light
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.)
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Application number
EP14177201.2A
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German (de)
English (en)
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EP2840298A1 (fr
Inventor
Matthias Brendle
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
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Automotive Lighting Reutlingen GmbH
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Publication of EP2840298A1 publication Critical patent/EP2840298A1/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
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—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
    • F21S41/25—Projection lenses
    • F21S41/265—Composite lenses; Lenses with a patch-like shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/27—Thick lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment 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
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings

Definitions

  • the invention relates to a light module, according to the preamble of claim 1.
  • Such a light module has an optical system which has a light source assembly with a primary optic and a secondary optic having an optical axis, wherein the light source assembly has at least one row of n semiconductor light sources arranged side by side in a straight line on a circuit board whose luminous flux can be controlled individually or in groups and abgresbar, and wherein the primary optics is adapted to generate from the light emanating from the light sources, an intermediate light distribution having a straight edge, and wherein the primary optics is adapted to illuminate a light entrance surface of the secondary optics.
  • Such a light module generates a pivotable light beam a rule-conforming headlight light distribution of a road vehicle, wherein a pivoting of the light beam by changing a power allocation to individual semiconductor light sources, which are arranged in a matrix next to each other.
  • Such a light module is from the DE 10 2011 077 636 A1 known.
  • the DE 10 2009 021 046 A1 shows largely the features of the preamble except for the arrangement of the semiconductor light sources on a circuit board.
  • the facet sections of the secondary optics embodied as lenses are directed with the focus on the intermediate light distribution.
  • the facets are assigned to different primary optics.
  • the DE 20 2010 003 058 U1 shows an embodiment of a secondary optics facet reflector.
  • the EP 2 237 080 A1 shows an embodiment of a secondary optics as a facet lens.
  • each of the semiconductor light sources is arranged on a light entrance side of an optical element.
  • the optical element is set up to refract the light bundle emanating from the semiconductor light source by refraction and internal total reflections in such a way that light emerging from the light exit surface of the optical element has a smaller opening angle than the light entering the respective optical element.
  • the light exit surfaces of the optical elements are arranged in a matrix-like manner and adjacent to one another in the light module, so that a coherent light exit surface results, which emerges from the light exit surfaces of the individual Optical elements composed.
  • the totality of the individual optical elements is also referred to here as primary optics.
  • the light module has a secondary optics, which is arranged by their arrangement and their optical properties to image the intermediate light distribution in an apron of the light module, the apron is at a proper use of the light module as part of a motor vehicle headlight in front of the vehicle. In this way, the apron is illuminated with a light distribution, which consists of individual, adjacent pixels. Each pixel is the image of a light exit surface of a single optical element.
  • the spatial distribution of the light in the headlight apron can be adapted to the respective traffic conditions.
  • Illuminating the apron with such a light distribution is also called a light function.
  • Examples of such light functions are low-beam light functions as well as high-beam and split-beam light functions, without this enumeration being to be understood as an exhaustive enumeration.
  • the division of the high beam has now established in several light stripes, which in a proper Use are vertically aligned.
  • the control of the semiconductor light sources, one of which illuminates a strip takes place, for example, by a control device which evaluates signals from sensors monitoring the apron. This evaluation allows, for example, a detection and localization of oncoming traffic. When oncoming traffic is detected, there is a reduction in the brightness of the light stripe in which the oncoming traffic was located.
  • a dynamic curve light function is here understood to mean a light function in which the main emission direction of the light module follows the steering angle, so that the light beam is swiveled to the right in a right-hand curve and to the left in a left-hand curve.
  • All previously known proposals provide light distributions consisting of a multiplicity of square, diamond-shaped or triangular pixel-like individual light distributions.
  • the individual light distributions are generated in predetermined patterns in order to give rise to a cumulative light distribution composed of the individual light distributions in a pixel-like manner.
  • the area of the light distribution which lies asymmetrically above the horizon, has to be shifted very far to its own side of the road in order to avoid dazzling oncoming traffic, which undesirably reduces the range of the dipped beam in the middle of the road.
  • the object of the invention in the specification of a light module that realizes a working without mechanical adjustment dynamic Kurvenlichtfunktion with a significantly reduced cost of light sources and optics and the low beam cornering light distribution with a lying between 20 ° and 30 ° rise angle the light-dark boundary in the asymmetrical part of the low beam distribution allowed. This object is achieved with the features of claim 1.
  • the subject matter of claim 1 differs from the known light module in that the secondary optics has at least two facets which are both focused on the intermediate light distribution, wherein each of the two facets has a sectional plane parallel to the optical axis with a maximum refractive power for the respective facet and a thereto vertical sectional plane parallel to the optical axis with a minimum refractive power for the respective facet, and wherein the sectional planes of maximum refractive power of the different facets are rotated by a first angle relative to each other about the optical axis and wherein the sectional planes of minimum refractive power of the different facets to each other around the optical axis Axis are twisted around the first angle.
  • Each facet generates its own light spot, which is limited by a cut-off line.
  • the light-dark boundaries of the spots against each other are also rotated by the first angle. In the superimposition of the spots of the facets, therefore, forms a Abknick Vietnamese having cumulative light distribution.
  • the angle of elevation can be set to any value when designing the secondary optics.
  • the optical system of the light module is set up by the faceted realization of the secondary optics to a low beam spot with a partially horizontal light-dark boundary and a partially obliquely to the horizon on the horizon rising light-dark boundary and a to create as a point of intersection of these two cut-off lines resulting breakpoint.
  • the light module according to the invention produces many similar, strongly overlapping dipped-beam spotlight light distributions, which are each shifted by small angles relative to one another when the light module is used as intended, the small angles lying in a horizontal plane.
  • the low beam spot is moved by turning on and off or driving up and down (dimming) the brightness of individual low beam spotlight light distributions.
  • the secondary optics is a lens or a concave mirror reflector.
  • the central semiconductor light source is the semiconductor light source through which the optical axis 22 of the secondary optics 16 passes.
  • a further preferred refinement is characterized in that at least one of the facets is adapted to image a straight edge of the intermediate light distribution as a first light-dark boundary and at least one other of the facets is adapted to use the straight edge as a second light-dark boundary. To represent the dark boundary, where the cut the two Corposcuro borders, including the first angle.
  • optical axis crosses the line of the semiconductor light sources.
  • the at least two facets are both adapted to focus on the centroid of the intermediate light distribution generated by the primary optics.
  • a further preferred refinement is characterized in that the number n of semiconductor light sources lying next to one another in a row is greater than or equal to 10, in particular greater than or equal to 15, and less than or equal to 40, in particular less than or equal to 30.
  • the optics formed from the primary optics and the secondary optics is adapted to distribute the light from a semiconductor light source to an area which extends from the point of breakage in the horizontal direction by 6 ° to 10 ° to the opposite side of the traffic and is also in horizontal direction extends by 2 ° to 4 ° to the own lane side.
  • the light module is set up such that a semiconductor light source located to the left of a first semiconductor light source and adjacent to the first semiconductor light source generates a spot with a breakpoint that is approximately 1 ° to 3 °, preferably 1 ° to 1.5 horizontally to the right offset to the Abknick Vietnamese the spot of the first semiconductor light source is, and that the light module is adapted to that a right of the first semiconductor light source and the first semiconductor light source adjacent semiconductor light source generates a spot with a Abknick Vietnamese that is about 1 ° to 3 °, preferably 1 ° to 1.5 horizontally offset to the left of the Abknickddling the spot of the first semiconductor light source.
  • a further preferred embodiment is characterized in that the secondary optics has three facets.
  • An alternative preferred embodiment is characterized in that the secondary optics has five facets.
  • each facet has a toric surface, wherein a toric surface is a curved, non-rotationally symmetric surface having different curvatures in differently oriented cutting planes, wherein in two mutually perpendicular sections a profile plane with a maximum curvature and a profile plane with a curvature minimum finds.
  • the secondary optics is a lens and the toric surfaces lie on the light entry side of the lens facing the primary optics.
  • a first toric surface lies on the left side of the light entry surface
  • a second toric surface lies on the right side of the light entry surface
  • a third toric surface lies between the first toric surface and the second toric surface
  • the first toric surface a first, vertically extending profile with a minimum amount of convex curvature
  • the first toric surface has a second, horizontally extending profile of maximum convex curvature perpendicular to the first profile
  • the second toric surface is a first, vertically extending profile having at least minimal convex curvature and having a second, horizontally extending profile of maximum concave curvature perpendicular to the first
  • the third toric surface has a first profile of minimum convex curvature and a second profile of maximum magnitude concave curvature, which is perpendicular to the first profile.
  • FIG. 1 shows an optical system of a first embodiment of a light module according to the invention 10.
  • the optical system consists of a light source assembly 12 with a primary optics 13 and realized here as a lens 15 secondary optics 16.
  • the semiconductor light sources are preferably light emitting diodes (LEDs), in particular SMD LEDs, wherein the abbreviation SMD stands for Surface Mounted Device.
  • the printed circuit board 18 is fastened with its side facing away from the light source line on a heat sink 20, the heat generated during operation of the semiconductor light sources 14.i in the chips of the LEDs via a thermal contact of the semiconductor light sources with the board and a thermal contact of the board to the heat sink absorbs and releases into the environment.
  • the line of semiconductor light sources 14.i is at a proper use of the light module in a vehicle that is standing or driving on a level surface, preferably parallel to the horizon. If in this application of a horizontal orientation, orientation or location is mentioned, this should always refer to the intended use as defined. This applies analogously for Location information as above or below.
  • the number m of the collecting lenses is at least as large as the number n of the semiconductor light sources.
  • a converging lens is arranged in the main emission of each semiconductor light source close to the semiconductor light source.
  • a dense arrangement is here understood to mean an arrangement at a distance which is at most 1 to 2 and typically just under one millimeter, the light exit surfaces of the semiconductor light sources, however, not to touch the light entry surfaces of the collecting lenses.
  • the collecting lenses are preferably realized as subregions of a one-piece cohesively connected transparent base body, which simplifies the alignment of the collecting lens subregions relative to the semiconductor light sources and with each other and permits fast, accurate and reliable assembly.
  • Each individual collecting lens subarea preferably has a flat light entrance surface facing its semiconductor light source and a convex light exit surface facing the secondary optic 16 following in the beam path.
  • the secondary optics 16 has an optical axis 22 and is arranged so that the optical axis 22 crosses the line of the semiconductor light sources 14.i.
  • the row direction of the horizontally disposed semiconductor light sources 14.i and the optical axis 22 span an imaginary horizontal Mid-plane 24 up.
  • An imaginary vertical center plane 26 is perpendicular to the horizontal center plane 26 so as to intersect the horizontal center plane along the optical axis 24.
  • Angular deviations from the optical axis 22 in the horizontal direction are plotted on the horizontally lying H-axis of this screen 28.
  • Angular deviations from the optical axis 22 in the vertical direction are plotted on the vertically oriented V-axis of the screen.
  • the vertex of the angle is in each case in the headlight, or in the light module 10th
  • the secondary optics 16 is realized as a converging lens 15. In an alternative embodiment, the secondary optics is realized as a faceted concave mirror.
  • the lens 15 has a center, which is defined as the center of the largest sphere which can be thoughtfully accommodated in the lens.
  • the realized as a lens 15 secondary optics 16 is a at least two facets 30, 32 having convex lens. Each facet has one of the primary optics 13 facing light entrance surface and a light exit surface.
  • the facets 30, 32 differ in the embodiment according to FIG. 1 by differently shaped light entry surfaces.
  • each of the facets 30, 32 is preferably on the optical axis 22.
  • Each facet focusses preferably on the light exit surface of the primary optics 13 or a plane lying in the transparent main body of the primary optics 13 and not on the light exit surface in the light path the primary optics 13 lying semiconductor light sources 14.i. In this plane, an intermediate light distribution of the light emitted by the light sources is formed.
  • the lens 15 of the light module according to the invention is adapted to generate from the primary optics forthcoming light a light distribution having at least two intersecting light-dark boundaries. The crossing point of the light-dark boundaries forms the turning point of an asymmetrical low-beam distribution.
  • the facets 30, 32 are distinguished by the fact that each of the facets has a focal line located at a great distance from the lens 15 in the light path behind the lens 15 (ie in the advance of the light module).
  • a focal line is understood to mean a line which results as the image of a point which lies on the light exit surface of the primary optics 13.
  • the at least two facets 30, 32 are preferably both adapted to the centroid of the Focusing light exit surface of the primary optics 13 and this focal point 33 each image in a faceted individual focal line.
  • the at least two facets 30, 32 are further arranged to cross their focal lines resulting in the image of a dot at a great distance.
  • a point is imaged as a line by optics if all the optical paths between the object-side point and the image-side focal line are equal in length.
  • the optical paths are then the same length if, for each beam between the object point and the image line in the beam path, the products of the geometric path lengths traversed by light in the various media and the refractive indices of these media are constant in their sum for all beams ,
  • the media are the material of the lens as well as the surrounding air.
  • the s k are the respective path lengths in the different media and the l k are the refractive indices of the media.
  • the optical system of the light module is in particular by the faceted realization of the secondary optics set up a Abbleriumtspot 34 with a partially horizontally extending light-dark boundary 36 and a partially obliquely to the horizon on the horizon rising light-dark boundary 37 and a as an intersection of these two light-dark boundaries resulting Abknickddling 38 to produce.
  • FIG. 2 shows a typical low beam distribution of a low beam spot 34 for right-hand traffic.
  • Low beam distribution is characterized by a bright area, the left of the vertical V has a horizontally extending light-dark boundary and right of the vertical V one with a positive slope angle, for example, 30 ° to the horizontal to the right rising light-dark boundary 37 ,
  • the curved lines running below the cut-off lines are lines along which the brightness is constant. From line to line, the brightness decreases from the HV junction point to the outside.
  • the number n of adjacent LEDs in a row is greater than or equal to 10 and less than or equal to 40. More preferably, n is a number that is greater than or equal to 15 and less than or equal to 30. These values are not to be seen as sharp limits.
  • the invention can also be realized with less than 10 light sources. However, then turns on a pivoting of the light beam auf Kunststoffn and Ab Kunststoffn the luminous flux of individual LEDs clearly noticeable, which could be perceived by the driver as disturbing.
  • the invention can also be implemented with more than 40 LEDs. However, then the cost advantages mentioned above, which the invention has in comparison to matrix LED headlights, are correspondingly lower.
  • the light module 10 is preferably set up to produce a low beam spot.
  • a supplementary light module is preferably present, which produces a broad basic light distribution, the bright area of which in any case does not lie above the horizon.
  • These two light modules are pairwise preferred in a motor vehicle both right and left available. At the Switching on the low beam then both modules of a page are operated together. The complete low-beam distribution results as a superposition of the broad basic light distribution with the low-beam spot.
  • Each LED of Abblelichtspotmoduls 10 off Fig. 1 generates for itself a low beam spot with a light-dark boundary, which has at least one Abknick Vietnamese 38, so that the own road side is further illuminated as the road side of oncoming traffic.
  • the central LED is, for example, the LED through which the optical axis 22 of the secondary optics 16 of the FIG. 1 passes through.
  • the optics formed from the primary optics 13 and the secondary optics 16 is preferably adapted to distribute the light of the LED to an area extending from the Abknick Vietnamese in the horizontal direction by 6 ° to 10 ° to the opposite side and in a likewise horizontal direction extends by 2 ° to 4 ° to the own lane side. This applies at least approximately for each spot of a single LED 14.i from the series. Smaller deviations of the horizontal angular width of the individual spots can result from the different distances of their main emission directions to the optical axis of the secondary optics and can be accepted.
  • a LED located to the left of the central LED and adjacent to the central LED produces a spot with a turn-off point which is offset approximately 1 ° to 3 °, preferably 1 ° to 1.5, horizontally to the right.
  • the rise of The light-dark boundary of this spot is then in the bright area of the spotlight of the central LED and is therefore at best perceivable as a comparatively small brightness difference, but not as a pronounced light-dark boundary.
  • the spot When driving through a right-hand bend, the spot is swiveled to the right and when driving through a left-hand bend, the spot is swiveled to the left.
  • the sensor technology required for this and the generation of control signals is known, for example, from the control of mechanically pivotable light modules from series use, and therefore requires no further explanation here.
  • panning of the spot based on such signals is accomplished by turning on and off LEDs, or more generally, by driving (zooming) in and out (decreasing) the luminous flux of LEDs.
  • the spot is generated by a number of r simultaneously driven LEDs, all in a row.
  • driving through a right-hand bend one of these groups on the left-hand side is switched on or turned on.
  • This LED produces a spot with one around the mentioned 1 ° up to 3 ° further to the right, the break point of the cut-off line.
  • the spot is swiveled to the right, as it were, electronically and without any mechanical pivoting movement, and is guided along the curve.
  • FIG. 3 shows a perspective view of such realized here as a convergent lens secondary optics, which has three facets here.
  • This collecting lens 15, which serves as secondary optics, is set up and arranged within the optical system of the light module 10 in such a way that it is focused on the light exit surfaces of the primary optics.
  • the faceted lens used according to the invention designs a light distribution with at least two intersecting light-dark boundaries 36, 37, wherein the intersection of the light-dark boundaries defines the inflection point 38 in FIG FIG. 2 represents dipped beam distribution 34.
  • FIG. 3 in particular, shows a three-faceted lens 15.
  • Each lens facet has toric surfaces.
  • a toric surface is generally understood to mean a curved, non-rotationally symmetrical surface, which has different curvatures in differently oriented cutting planes, whereby a profile plane with a maximum of curvature and a profile plane with a minimum of curvature are found in two mutually perpendicular sections.
  • This definition is expressly intended to include non-circular profiles whose curvature is therefore not constant over the arc length.
  • the toric surfaces are preferably on the light entrance side of the lens.
  • a first toric surface 40 lies on the left side of the light entry surface.
  • a second toric surface 42 lies on the right side of the light entry surface.
  • a third toric surface 44 is located between the first toric surface 40 and the second toric surface 42.
  • a profile is understood to mean a space curve running in a plane. For each cutting plane parallel to the optical axis, each profile defines such a cutting plane.
  • the first toric surface 40 has a first, vertically extending profile 40.1 with an absolute minimum curvature. This first profile is convexly curved.
  • the first toric surface has a second, horizontally extending profile 40.2 with the maximum curvature in terms of magnitude. This second profile is also convexly curved.
  • the first profile 40.1 and the second profile 40.2 are perpendicular to each other.
  • the second toric surface 42 has a first, vertically extending profile 42.1 with an absolute minimum curvature. This profile is convex curved.
  • the second toric surface 42 has a second, horizontally extending profile 42.2 with an absolute maximum curvature. This second profile is concavely curved.
  • the first profile 42.1 and the second profile 42.2 are perpendicular to each other.
  • the third toric surface 44 has a first profile 44.1 with an absolute minimum curvature. This profile is convex curved.
  • the third toric surface 44 has a second profile 44.2 with an absolute maximum curvature. This second profile is concavely curved.
  • the first profile 44.1 and the second profile 44.2 are perpendicular to each other.
  • the first profile 44.1 of the third toric surface 44 encloses, with the first profile 40.1 of the first toric surface 40 and the first profile 42.1 of the second toric surface 42, an angle which corresponds to the desired angle of rise of the light-dark boundary in the inflection point 38 of the asymmetrical low-beam distribution 34 corresponds.
  • the second profile 44.2 of the third toric surface 44 also includes the second profile 40.2 of the first toric surface 40 and the second profile 42.2 of the second toric surface 42. These are in the embodiment of FIG. 2 each 30 °.
  • FIG. 4 shows in FIG. 4a a plan view of the light entry surface of the faceted lens 15 from the FIG. 3 , FIG.
  • FIG. 4b shows a side view of the lens 15
  • Figure 4c shows a section through the lens 15, the in a normal use when used horizontally sectional plane along the line AA FIG. 4a he follows. All facets have different profile curvatures at different angles of intersection.
  • the sectional planes of maximum and minimum curvature are perpendicular to each other within a facet.
  • the curvature of the more vertically oriented profiles visible there as the right edges is comparatively small.
  • the curvatures of the profiles of the first toric surface and the second toric surface visible there as lower edges are comparatively large.
  • the curvatures of the Figure 4c are compared with the curvatures in FIG. 4b maximum. This can be generalized so that the cutting planes of maximum curvature and minimum curvature of a facet in the lens are perpendicular to each other.
  • the position of the profile planes of the curvature extremes depends on the position of the light-dark boundaries generated thereby. Facets which generate differently inclined light-dark boundaries have at the same angle around the optical axis against each other twisted profile planes of maximum or minimum curvature. In the example shown, this is 30 degrees.
  • the drawn 30 degree angle is in FIG. 4a between the plane 44.2 maximum profile curvature of the middle, third facet 44 and the plane 42.2 maximum profile curvature of the right, second facet 42nd
  • FIG. 5 shows a lens 15 of another embodiment. The correspond in the FIG. 5 shown views of the respective viewing direction forth in the FIG. 4 represented views.
  • FIG. 5a shows a plan view of the light entrance surface of the faceted lens.
  • FIG. 5b shows a side view and
  • FIG. 5c shows a section in a horizontal plane of use when used properly along the line BB FIG. 5a he follows. All facets have different profile curvatures at different angles of intersection.
  • the lens 15 of the embodiment of the FIG. 5 is different from the ones in the Figures 3 and 4 shown lenses 15 in that it has five instead of three different facets. Each facet is bounded on its primary optics facing light entrance side of a toric surface.
  • a first toric surface 40 lies on the left side of the light entry surface.
  • a second toric surface 42 lies on the right side of the light entry surface.
  • An imaginary horizontal section, along the line BB in the FIG. 5a lies, divides the lens into an upper part and a lower part.
  • a third toric surface 44 lies between the first toric surface 40 and a fourth toric surface 52.
  • the fourth toric surface 52 lies there between the third toric surface 44 and the second toric surface 42.
  • a fifth toric surface 54 lies between the first toric surface 40 and the third toric surface 44.
  • the third toric surface 44 lies there between the fifth toric surface 54 and the second toric surface 48.
  • the first toric surface 40 has a first, vertically extending profile 40.1 with an absolute minimum curvature. This first profile is convexly curved. In addition, the first toric surface has a second, horizontally extending profile 40.2 with the maximum curvature in terms of magnitude. This second profile is also convexly curved. The first profile and the second profile are perpendicular to each other.
  • the second toric surface 42 has a first, vertically extending profile 42.1 with an absolute minimum curvature. This profile is convex curved.
  • the second toric surface 42 has a second, horizontally extending profile 42.2 with an absolute maximum curvature. This second profile is concavely curved.
  • the first profile and the second profile are perpendicular to each other.
  • the third toric surface 44 has a first profile 44.1 with an absolute minimum curvature. This profile is convex curved.
  • the third toric surface 44 has a second profile 44.2 with an absolute maximum curvature. This second profile is concavely curved.
  • the first profile and the second profile are perpendicular to each other.
  • the first profile 44. 1 of the third toric surface 44 encloses, with the first profile 40. 1 of the first toric surface 40 and the first profile 42. 1 of the second toric surface 42, an angle which corresponds to the desired angle of rise in an inflection point 38 of the asymmetrical low-beam distribution 34.
  • the second profile 44.2 of the third toric surface 44 also includes the second profile 40.2 of the first toric surface 40 and the second profile 42.2 of the second toric surface 42. These are in the embodiment of FIG. 5 each 30 °.
  • the 30 ° angle is a first angle in the sense of the claims.
  • the fourth toric surface 52 and the fifth toric surface 54 each have a first profile 52.1 or 54.1 with an absolute minimum curvature. This profile is convex curved.
  • the fourth toric surface 52 and the fifth toric surface 54 each have a second profile 52. 2 or 54. 2 with an absolute maximum curvature. This second profile is concavely curved.
  • the first profile 52.1 or 54.1 and the second profile 52.2 or 54.2 of a toric surface 52 or 54 are perpendicular to one another.
  • the first profile 52.1 of the fourth toric surface 52 and the first profile 54.1 of the fifth toric surface 54 includes an angle with the first profile 40.1 of the first toric surface 40 and the first profile 42.1 of the second toric surface 42, which corresponds to the desired angle of rise in FIG a break point 38 of the asymmetric low beam distribution 34 corresponds.
  • the respective second profile 52.2, 54.2 of the fourth toric surface 54 and the fifth toric surface 54 also includes the second profile 40.2 of the first toric surface 40 and the second profile 42.2 of the second toric surface 42. These are in the embodiment of FIG. 5 each - 8 °.
  • the lens facets delimited by the toric surfaces 40, 42, 44, 52, 54 have different imaging properties and thus produce differently inclined regions and light-dark boundaries of the light distribution.
  • the two outer lens facets, of which the left is delimited by the first toric surface 40 and the other of which is delimited by the second toric surface 42 produce the horizontal cut-off line.
  • the central lens facet delimited by the third toric surface 44 produces the 30 ° increase in the light-dark boundary.
  • sectional planes of maximum and minimum curvature are perpendicular to each other within a facet, or within a toric surface.
  • the position of the profile planes of the curvature extremes depends on the position of the light-dark boundaries generated thereby. Facets that produce differently inclined light-dark boundaries have at the same angle against each other twisted profile levels maximum or minimum curvature.
  • the drawn 30 ° angle is in FIG. 5a between the plane 44.1 of minimum profile curvature of the middle, third facet 44 and the plane 40.1 of minimum profile curvature of the left, first facet 40 and also the right, second facet 42.
  • FIG. 5a An indicated 8 ° angle is in FIG. 5a between the plane 52.1 minimum profile curvature of the fourth facet 52 and the plane 40.1 minimum profile curvature of the left, first facet 40 and also the right, second facet 42.
  • Analog is a marked 8 ° angle in FIG. 5a between the minimum profile curvature plane 54.1 of the fifth facet 54 and the minimum profile curvature plane 40.1 of the left, first facet 40 and also the right, second facet 42.
  • the five facets produce three different light-dark boundaries in the light distribution. Corresponding to the drawn angles, these are a horizontally running light-dark boundary for the 0 degree angle, a light-dark boundary tilted by -8 degrees with respect to the horizontal light-dark boundary and one tilted by +30 degrees with respect to the horizontal light-dark boundary.
  • the illumination of this area is comparatively weak because the area of this facet is smaller compared to the areas of the other facets.
  • FIG. 6 shows an embodiment of a light source assembly 12, which already mentioned Board 18 mounted thereon with semiconductor light sources in the form of SMD LEDs 14.i, an integrally realized, Sammellinsenteil Suitee 13.j having primary optics 13 and the heat sink 20 has.
  • a connector element 56 connected to the printed circuit board 18 serves for making electrical contact with the printed circuit board and for electrical connection to a power supply and control system.
  • the semiconductor light sources preferably have a rectangular or square and planar light exit surface with an edge length of 0.3 mm up to about 2 mm. They are preferably arranged directly adjacent to one another in a straight line. Each semiconductor light source has a light exit surface. In front of each light exit surface in each case a converging lens of the primary optics is arranged.
  • FIG. 7 shows various views of the board 18 with the light sources and the primary optics 13th
  • FIG. 7b shows a perspective view of the assembly of the board 18 with the male member 56 and the primary optics 13, which cover the associated LEDs.
  • Figure 7a shows a first section through this assembly, which runs in the direction of the series arrangement.
  • FIG. 7d shows a second section through this assembly, which extends transversely to the array and
  • FIG. 7c shows a plan view and a position of said first cut and second cut.
  • Each SMD LED is assigned to each one Sammellinsenteil Scheme as LED-individual primary optics, which collects the light 60 of this LED and directed to the secondary optics in the beam path.
  • the collecting lens subregions are realized here as part regions of an integral transparent base body, which adjoin one another without any spacing, as the primary optics 13.
  • the integral body preferably consists of an organic or inorganic glass.
  • the secondary optics and the individual collecting lens subareas are dimensioned and arranged so that the light entrance surface of the secondary optics is illuminated as far as possible and that at the same time, however, as little light as possible gets past the light entry surface of the secondary optics.
  • Each collecting lens subregion preferably has a flat light entry surface and a convex light exit surface.
  • the collecting lens subarea 13.j serving as LED-individual primary optics is arranged with respect to its associated LED 14.i such that the optical axis 58 of the collecting lens subarea passes through the center of the LED 14.i and that the main emission direction of each individual LED on the optical axis 58 of its associated collection lens portion 13.j is located.
  • the center points of the light exit surfaces of the collector lens subareas serving as LED-individual primary optics and the centers of the light exit surfaces of the LEDs have equal spacings T.
  • the row arrangement of these collective lens subregions 13j therefore has the same pitch as the row arrangement of the LEDs 14i.
  • the primary body 13 serving as a transparent base body has a bridge shape, which spans the mounted on the board 18 and electrically contacted via the board LEDs.
  • the bridge has lateral supports 62, with which it is mounted on the board 18.
  • the LED-individual collective lens subregions and their one uniquely associated light sources are arranged in a row. This is the preferred embodiment.
  • the LED's are individual Sammellinsenteil Schemee and each uniquely associated light sources arranged in several rows. Then the individual rows of light sources are parallel to each other.
  • the LED-individual collecting lens sub-areas are equal to each other and their light exit surfaces adjoin one another without spacing.
  • One longitudinal side of the row arrangement is imaged by the subsequent secondary optics as a cut-off line.
  • the collecting lens subregions preferably have a straight boundary surface. This preferably forms an internally totally reflecting mirror surface and thereby generates a sharply delimited intermediate light distribution, which facilitates the generation of sharp light-dark boundaries in advance of the light module.
  • a further embodiment provides that the light emission on this longitudinal side is limited by a separate diaphragm edge.
  • Fig. 7a shows in particular the focal plane 64 of the secondary optics, which lies in a plane with the intermediate light distribution, which is established when the LEDs are switched on in the primary optics.
  • the intermediate light distribution is preferably in the region of the lens body and thus in the interior of the transparent primary optics in the case of the primary optics implemented by converging lenses or collecting lens subregions.
  • FIG. 7b shows a perspective view of the assembly of the board 18 with the electrically contacting plug member 56 and the primary optics 13, which covers the underneath and on the board 18 arranged LEDs.
  • Figure 7a shows the first section through this assembly, which runs in the direction of the series arrangement.
  • FIG. 7d shows the second section through this assembly, which is transverse to the array, and
  • FIG. 7c shows a plan view of this assembly and a location of said sections.
  • the first cut is the cut AA and the second cut is the cut BB.
  • Each LED light source 14.i is uniquely associated with a collection lens subregion 13.j.
  • the focal point 33 of the secondary optics is preferably in the centroid of the light exit surface of the primary optics 13. Compare Fig. 7c ,
  • the converging lens portions 13j are equal to each other and their light exit surfaces adjoin one another without spacing.
  • FIG. 8 shows an arrangement of a pair of one of several semiconductor light sources in the form of an LED chip 14 and a light 60 of this chip collecting collection lens portion 13.j of the primary optics 13.
  • a division of the primary optics 13 is denoted by T.
  • the pitch T corresponds to the width of the individual collective lens subareas 13.j as well as to the spacing of the centers of adjacent LED chips 14.i.
  • B LED denotes an edge length of the LED chip 14.j.
  • a virtual LED chip is labeled 14.i '.
  • the edge length of the virtual LED chip 14.i ' is denoted by B' LED .
  • An object-side focal point of the collection lens portion 13.j is denoted by F and a major point of the collection lens portion 13.j is denoted by H.
  • the principal point H of a lens is defined as the intersection of a principal plane of the lens with the optical axis 58.
  • the secondary optics 16 of the light module 10 according to the invention is preferably focused on a main point H of one of the collecting lens subregions 13.j, preferably on the main point H of the collecting lens subregion 13.j located in the vicinity of an optical axis 22 of the light module 10.
  • Reference f denotes the focal length of the collective lens portion 13.j
  • S F denotes a focal length of the Collection lens section 13.j.
  • a distance between the LED chip 14.i and the light entrance surface of the collection lens portion 13.j is S 1
  • a distance between the virtual chip image 14.i 'and the light entrance surface of the collection lens portion 13.j is designated by S 2 .
  • the LED chip 14.i is located between the collecting lens portion 13.j and its object-side focal point F.
  • the LED chip 14.i is enlarged by the collecting lens portion 13.j so that the (upright) virtual image 14.i 'of the chip (in the light exit direction in front of the object-side lens focal point F) is approximately the same size as the collecting lens portion 13.j, ie B ' LED ⁇ T.
  • the collective lens subareas 13.j of the primary optics 13 do not serve to produce real intermediate images of the light sources 14.i, but merely form an illuminated surface on the light exit side of the collective lens subregions 13.j.
  • the light sources 14.i are arranged between the light entry surfaces of the collection lens subregions 13.j and the object side focuses F of the collection lens subregions 13.j such that the edges of the light sources 14.i lie on geometrical connections from the focal points F to the lens edges.
  • the Radiating surfaces of the light sources 14.i are arranged perpendicular to the optical axes of the collective lens subregions 13.j.
  • the secondary optics From these intermediate light distributions, the secondary optics generate the light distribution which occurs in advance of the light module on the road.
  • this light distribution is not an angle-accurate picture of the intermediate light distribution.
  • the light distribution which arises on the road or on a screen in front of the vehicle has, in particular as a consequence of the faceted secondary optics, light-dark boundaries extending at different angles to the horizontal, which is not the case with the intermediate light distribution.
  • the optical axes of the individual collecting lens subregions 13j of the primary optics 13 all run in one plane, preferably they are parallel to one another.
  • the optical axis 22 of the secondary optics is on the side facing the primary optics 13, parallel to the axis of at least one of the collecting lens portions 13.j.
  • the LEDs are arranged between their respective collecting lens part region and its focal point in such a way that a gap-free intermediate light distribution arises, which is composed of the virtual images of the light exit surfaces of the individual chips. It should be noted that the light exits from the LED first in air and only then incident on the associated collection lens portion. This is a difference from the prior art, where LEDs are transparent Vergussmassen be used, wherein the potting unfolds possibly a lens effect.
  • the primary optics used is an array of light guides which have conically widening cross sections to the light exit, which are oriented perpendicular to the main propagation direction of the light in the light guides and thus perpendicular to the respective optical axis and which are rectangular, in particular are square.
  • the light exit surfaces of the individual light guides line up seamlessly and limit the luminous surface with sharp, straight edges.
  • Each LED is assigned one light guide one-unique.
  • each light guide is preferably flat and is parallel in front of the LED chip.
  • the light guides are arranged as the associated light sources in a row, so that the light exit surfaces are in turn limited by at least one straight line.
  • the light exit surface is preferably convex.
  • the light guide array is preferably made of one of the abovementioned transparent materials, that is to say in particular of an organic or an inorganic glass.
  • the light guide array is preferably manufactured as a one-piece base body, which has the light guides as light-conducting subregions.
  • a further embodiment provides as primary optics an arrangement of concave mirror reflectors.
  • the concave reflectors for example, have the shape of a truncated pyramid, which widens towards the light exit. Again, every LED is just such a reflector one-unique is assigned.
  • the primary optics array as an array of reflector subregions, condenser lens subregions and light guide subregions, the sum of the light exit surfaces of the respective subregions forms the coherently connected intermediate light distribution.

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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 (15)

  1. Module lumineux (10) pour un projecteur de véhicule automobile, avec un système optique qui comprend une unité de sources de lumière (12) avec une optique primaire (13) et une optique secondaire (16) comportant un axe optique (22), l'unité de sources de lumière (12) comprenant au moins une ligne de n sources de lumière à semi-conducteur (14.i avec i = 1, 2, ..., n) disposées les unes à côté des autres en une ligne droite sur une platine (18), dont le flux lumineux est susceptible d'être commandé individuellement ou par groupes en augmentation ou en diminution, l'optique primaire (13) étant agencée pour pouvoir engendrer, à partir de la lumière émise par les sources de lumière (14.i avec i = 1, 2, ..., n), une répartition intermédiaire de lumière qui comporte un bord droit et pour éclairer une surface d'entrée de lumière de l'optique secondaire (16), caractérisé en ce que l'optique secondaire (16) comporte au moins deux facettes (30, 32) qui sont, toutes les deux, focalisées sur la répartition intermédiaire de lumière, chacune des deux facettes (30, 32) comportant un plan de coupe parallèle à l'axe optique (22) avec une puissance de réfringence maximale pour la facette respective (30, 32) et un plan de coupe perpendiculaire à ce dernier et parallèle à l'axe optique (22) avec une puissance de réfringence minimale pour la facette respective (30, 32), les plans de coupe avec puissance de réfringence maximale des différentes facettes (30, 32) étant tournés les uns par rapport aux autres autour de l'axe optique (22) d'un premier angle et les plans de coupe avec puissance de réfringence minimale des différentes facettes (30, 32) étant tournés les uns par rapport aux autres autour de l'axe optique (22) du premier angle.
  2. Module lumineux (10) selon la revendication 1, caractérisé en ce que l'optique secondaire (16) est une lentille (15) ou un réflecteur à miroir concave.
  3. Module lumineux (10) selon la revendication 1 ou 2, caractérisé en ce que les facettes (30, 32) de l'optique secondaire (16) sont agencées pour former, en image, un point de la répartition intermédiaire de lumière comme une ligne sur un écran dressé devant le module lumineux (10) dont la surface est perpendiculaire à l'axe optique (22) de l'optique secondaire (16), la ligne produite par l'une des facettes enfermant avec la ligne produite par l'autre facette le premier angle, et en ce qu'une source de lumière à semi-conducteur centrale parmi la ligne de sources de lumière à semi-conducteur produit sur l'écran un spot avec un point de décrochage (38) au point H = V = 0 ou faiblement en-dessous de celui-ci, le point H = V = 0 étant déterminé comme le point de passage de l'axe optique (22) à travers l'écran.
  4. Module lumineux (10) selon la revendication 3, caractérisé en ce que la source de lumière à semi-conducteur centrale est la source de lumière à semi-conducteur par laquelle passe l'axe optique (22) de l'optique secondaire (16).
  5. Module lumineux (10) selon l'une des revendications précédentes, caractérisé en ce qu'au moins une des facettes est agencée pour former, en image, un bord droit de la répartition intermédiaire de lumière comme une première limite clair/foncé et en ce qu'au moins une autre des facettes est agencée pour former, en image, le bord droit comme une deuxième limite clair/foncé (37), les deux limites clair/foncé (36, 37) coupant l'une l'autre et enfermant entre elles le premier angle.
  6. Module lumineux (10) selon l'une des revendications précédentes, caractérisé en ce que l'axe optique (22) croise la ligne de sources de lumière à semi-conducteur (14.i avec i = 1, 2, ..., n).
  7. Module lumineux (10) selon l'une des revendications précédentes, caractérisé en ce que lesdites au moins deux facettes (30, 32) sont agencées toutes les deux pour focaliser sur le barycentre de surface de la répartition intermédiaire de lumière produite par l'optique primaire (13).
  8. Module lumineux (10) selon l'une des revendications précédentes, caractérisé en ce que le nombre n des sources de lumière à semi-conducteur (14.i avec i = 1, 2, ..., n) disposées les unes à côté des autres en une ligne est supérieur ou égal à 10, notamment supérieur ou égal à 15, et inférieur ou égal à 40, notamment inférieur ou égal à 30.
  9. Module lumineux (10) selon l'une des revendications précédentes, caractérisé en ce que l'optique formée par l'optique primaire (13) et l'optique secondaire (16) est agencée pour répartir la lumière d'une source de lumière à semi-conducteur (14.i) sur une zone qui s'étend du point de décrochage (38) en direction horizontale de 6° à 10° vers le côté de la circulation inverse et qui s'étend également en direction horizontale de 2° à 4° vers le côté de sa propre voie de circulation.
  10. Module lumineux (10) selon l'une des revendications précédentes, caractérisé en ce que le module lumineux (10) est agencé de façon qu'une source de lumière à semi-conducteur située à gauche de, et avoisinante à, la première source de lumière à semi-conducteur forme un spot avec un point de décrochage qui est décalé horizontalement vers la droite d'environ 1° à 3°, de préférence de 1° à 1,5°, par rapport au point de décrochage du spot de la première source de lumière à semi-conducteur et en ce que le module lumineux (10) est agencé de façon qu'une source de lumière à semi-conducteur située à droite de, et avoisinante à, la première source de lumière à semi-conducteur forme un spot avec un point de décrochage qui est décalé horizontalement vers la gauche d'environ 1° à 3°, de préférence de 1° à 1,5°, par rapport au point de décrochage du spot de la première source de lumière à semi-conducteur.
  11. Module lumineux (10) selon l'une des revendications précédentes, caractérisé en ce que l'optique secondaire (16) comprend trois facettes.
  12. Module lumineux (10) selon l'une des revendications précédentes, caractérisé en ce que l'optique secondaire (16) comprend cinq facettes.
  13. Module lumineux (10) selon l'une des revendications précédentes, caractérisé en ce que chaque facette présente une surface torique, une surface torique étant une surface courbe non symétrique en rotation qui présente des courbures différentes dans des plans de coupe orientés différemment, où l'on trouve sur deux coupes perpendiculaires l'une à l'autre un plan de profil avec une courbure maximale et un plan de profil avec une courbure minimale.
  14. Module lumineux (10) selon la revendication 13, caractérisé en ce que l'optique secondaire (16) est une lentille (15) et que les surfaces toriques sont situées sur le côté d'entrée de lumière de la lentille (15) orienté vers l'optique primaire (13).
  15. Module lumineux (10) selon l'une des revendications 13 ou 14, caractérisé en ce qu'une première surface torique (40) est située sur le côté gauche de la surface d'entrée de lumière, qu'une deuxième surface torique (42) est située sur le côté droit de la surface d'entrée de lumière, qu'une troisième surface torique (44) est située entre la première surface torique (40) et la deuxième surface torique (42), la première surface torique (40) présentant un premier profil (40.1) s'étendant verticalement avec une courbure convexe quantitativement minimale, et que la première surface torique (40) présente un deuxième profil (40.2) s'étendant horizontalement avec une courbure convexe quantitativement maximale, qui est perpendiculaire au premier profil (40.1), et la deuxième surface torique (42) présentant un premier profil (42.1) s'étendant verticalement avec une courbure convexe quantitativement minimale et un deuxième profil (42.2) s'étendant horizontalement avec une courbure concave quantitativement maximale, qui est perpendiculaire au premier (42.1), et la troisième surface torique (44) présentant un premier profil (44.1) avec une courbure convexe quantitativement minimale et un deuxième profil (44.2) avec une courbure concave quantitativement maximale, qui est perpendiculaire au premier profil (44.1).
EP14177201.2A 2013-08-05 2014-07-16 Module lumineux en courbe sans mécanique Active EP2840298B1 (fr)

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Publication number Priority date Publication date Assignee Title
FR3041072B1 (fr) * 2015-09-14 2020-01-17 Valeo Vision Module d'eclairage de projecteur de vehicule automobile et projecteur associe
DE102017220488B4 (de) 2016-11-24 2023-02-16 Wuhan Tongchang Automotive Lighting Co., Ltd. Scheinwerfer für Fahrzeuge
FR3084723B1 (fr) 2018-07-31 2020-08-28 Valeo Vision Module lumineux comportant une matrice de sources lumineuses et un systeme optique bifocal
DE102019102475A1 (de) 2019-01-31 2020-08-06 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für ein Kraftfahrzeug, insbesondere hochauflösender Scheinwerfer
KR20240071020A (ko) 2022-11-15 2024-05-22 현대모비스 주식회사 램프 및 그것의 동작 방법
KR20240084325A (ko) * 2022-12-06 2024-06-13 현대모비스 주식회사 차량용 램프 모듈

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DE102005030932B4 (de) * 2005-06-30 2022-01-13 HELLA GmbH & Co. KGaA Scheinwerfer für Fahrzeuge
DE102006006635A1 (de) * 2006-02-14 2007-08-16 Schefenacker Vision Systems Germany Gmbh Abblendlichtscheinwerfer, der einen kontraststark ausgebildeten Cut-off erzeugt
JP2009283408A (ja) * 2008-05-26 2009-12-03 Koito Mfg Co Ltd 車両用前照灯
FR2943799B1 (fr) * 2009-03-31 2011-09-02 Valeo Vision Sas "lentille pour module d'eclairage pour vehicule automobile".
DE202010003058U1 (de) * 2010-03-03 2010-05-20 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugscheinwerfer mit einer Lichtquelle und wenigstens zwei Licht verteilenden optischen Elementen
DE102011077636A1 (de) * 2011-04-27 2011-11-03 Automotive Lighting Reutlingen Gmbh Lichtmodul eines Kraftfahrzeugs zur Erzeugung einer Spotverteilung einer Fernlicht-Lichtverteilung und Kraftfahrzeugscheinwerfer mit einem solchen Modul
JP5719697B2 (ja) * 2011-06-10 2015-05-20 株式会社小糸製作所 車両の前照灯装置
DE102011085315A1 (de) * 2011-10-27 2013-05-02 Automotive Lighting Reutlingen Gmbh Scheinwerferprojektionsmodul für ein Kraftfahrzeug

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