EP3330597A1 - Optique primaire, optique secondaire, module, dispositif, phares de véhicule automobile et système de phares - Google Patents

Optique primaire, optique secondaire, module, dispositif, phares de véhicule automobile et système de phares Download PDF

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Publication number
EP3330597A1
EP3330597A1 EP17197505.5A EP17197505A EP3330597A1 EP 3330597 A1 EP3330597 A1 EP 3330597A1 EP 17197505 A EP17197505 A EP 17197505A EP 3330597 A1 EP3330597 A1 EP 3330597A1
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EP
European Patent Office
Prior art keywords
optics
coupling
line
coupling surfaces
module
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.)
Granted
Application number
EP17197505.5A
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German (de)
English (en)
Other versions
EP3330597B1 (fr
Inventor
Thomas Feil
Andreas Hartmann
Eugen PAPPELHEIM
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Osram Beteiligungsverwaltung GmbH
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Osram GmbH
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Publication of EP3330597A1 publication Critical patent/EP3330597A1/fr
Application granted granted Critical
Publication of EP3330597B1 publication Critical patent/EP3330597B1/fr
Active legal-status Critical Current
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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]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • 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
    • 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
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/26—Elongated lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/322—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F21W2102/14—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users
    • F21W2102/145—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users wherein the light is emitted between two parallel vertical cutoff lines, e.g. selectively emitted rectangular-shaped high beam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention is based on an optic, in particular a primary optic, according to the preamble of claim 1. Furthermore, the invention relates to an optic, in particular a secondary optics. In addition, the invention provides a module with a radiation source matrix. Furthermore, the invention relates to an arrangement having a plurality of radiation source matrices and optics. In addition, a vehicle headlight is provided.
  • matrix headlights for vehicles are known. These have a matrix of light-emitting diodes (LEDs). In this case, each individual LED can be controlled separately and thereby switched on and off and dimmed.
  • the LEDs can be arranged in single-line or multi-line and each form a light pixel.
  • the object of the present invention is an optics, in particular a primary optics, for a radiation source matrix, an optics, in particular a secondary optics, for the radiation source matrix, a module with a radiation source matrix, an arrangement, a headlight and a headlamp system to create a high quality photograph in a cost effective manner.
  • optics in particular the primary optics
  • optics in particular secondary optics, according to the features of claim 8
  • module in terms of optics, in particular secondary optics, according to the features of claim 9, with respect to the arrangement according to the features of claim 10
  • headlamp according to the features of claim 12
  • headlamp system according to the features of claim 13.
  • an optic in particular a primary optic, is provided for a radiation source matrix.
  • This has a plurality or plurality of arranged in at least one line coupling surfaces and at least one decoupling surface.
  • at least one of the coupling-in surfaces which is arranged at one line end of the line formed by the coupling surfaces arranged in at least one line and is also referred to below as a lateral or edge-side coupling surface, widened in the direction of the at least one line.
  • at least one edge-side coupling surface can be wider than a middle coupling surface.
  • Such optics when used with an upstream radiation source matrix, enable asymmetric light distribution and an optimized ratio of light image width to center resolution. This is extremely advantageous when using the optics (primary optics) in a vehicle headlight of a vehicle, since in a cost effective manner in the center region, a comparatively high resolution is achieved and in the edge region a widened light image is created by simply at least one of the peripheral coupling surfaces is widened.
  • both edge-side coupling surfaces or edge pixels or side pixels of the at least one line are widened.
  • the light image can have a comparatively high width on device-side, simple manner on both edge sides, wherein a high resolution is present in the center.
  • the marginal coupling surfaces in the direction of at least one row have a different width to each other. If the optic is used, for example, in the vehicle headlight, the edge-side coupling surface, which is spaced further from the longitudinal axis of the vehicle, is preferably wider than the inner edge-side coupling surface.
  • the vehicle in which the optics (primary optics) can be used with a headlight can be an aircraft or a water-bound vehicle or a land-bound vehicle.
  • the land-based vehicle may be a motor vehicle or a rail vehicle or a bicycle. Particularly preferred is the use of the vehicle headlight in a truck or passenger car or motorcycle.
  • the coupling surfaces are seen in a plane which extends in the direction of at least one row and in the direction of the optical main axis of the optics, convex.
  • the coupling surfaces in this plane have an arc shape.
  • the coupling surfaces can be designed to be elongated or web-like in a direction transverse to the at least one row and transversely to the main optical axis. They can each form part of a cylindrical lateral surface.
  • the coupling surfaces abut each other, whereby a transition of the coupling surfaces in the photograph is not or hardly visible.
  • the middle coupling surfaces are designed the same, resulting in a uniform light image in the middle or central area.
  • the middle or central coupling surfaces are preferably all coupling surfaces without the edge-side coupling surfaces. Vertexes of the middle coupling surfaces are preferably in a common plane which extends, for example, transversely to the main optical axis and in the direction of the at least one row.
  • a high quality of light image with high cost-effectiveness can be given if the optics (primary optics) 6 to 14, in particular 6 to 12, coupling surfaces, which may preferably be provided for corresponding to 6 to 14, in particular 6 to 12, radiation sources.
  • the optics (primary optics) such a number of coupling surfaces leads to low energy consumption when a corresponding number of radiation sources are used, and to a high-resolution light image.
  • At least one lateral coupling surface extends from the adjacent coupling surface towards its vertex with a first, in particular curved, area section. This can be made to the main optical axis. From the apex may then extend a second, in particular curved, surface portion away, which is preferably employed to the main optical axis. The second surface portion may be seen as wider in the direction of the line than the first surface portion. Furthermore, a depth of the second surface section in the direction of the main optical axis measured is preferably greater than a depth of the central coupling surfaces.
  • a widened coupling surface can be implemented on device technology simple way.
  • the decoupling surface of the optics is designed asymmetrically, with which an asymmetrical light image can be formed, which is extremely advantageous for a vehicle headlight.
  • the decoupling surface is in particular elongated and preferably extends transversely to the main optical axis and in the direction of the at least one row.
  • the decoupling surface can have four corner areas on the circumference.
  • device technology is simply at least one corner region or are a plurality of corner regions or all corner regions are curved or trimmed or rounded. This configuration of the corner region or of the corner regions furthermore leads to the fact that unwanted light reflections are suppressed and artefact formation in the light distribution is reduced or avoided.
  • the corner regions on the one side of the decoupling surface can in this case have a smaller radius than the corner regions of the other side.
  • the corner areas with the large radius are preferably located below and the corner areas with the small radius at the top. By mirroring the secondary lens, the small radius is displayed on the road.
  • the optics (primary optics) has a radial collar between the coupling surfaces and the decoupling surface for easy mounting in the direction of the main optical axis. It is thus covered by a radial collar over which it can be attached.
  • the main optical axis in the direction of the line can extend between two central coupling surfaces.
  • the main optical axis is arranged offset from the center of the line. If, for example, 7 coupling surfaces with 5 central coupling surfaces are provided, then the main optical axis can be arranged, for example, between the central coupling surface and the coupling surface adjacent thereto.
  • a respective average coupling surface is designed such that it can be used to illuminate an angular range of a light image of less than or equal to 3 °.
  • the angular range here is preferably measured in a plane which lies in the main optical axis and which extends parallel to the direction of extension of the line. In the installed state of the optics (primary optics) in the headlight, this may be the horizontal plane. Close the angular ranges of the coupling surface essentially abutting each other, thus allowing a homogeneous light image.
  • the optics are further configured such that an illuminated angle range in a plane in which the main optical axis lies and which extends parallel to the extension direction of the line or horizontally between +/- 20 °, preferably between +/- 40 °, more preferably between -20 ° and + 12 °.
  • the optics primary optics
  • the optics may be designed such that it illuminates an angular range of the light image in a plane which extends parallel to the main optical axis and transversely to the extension direction of the line or vertically, by 7 °. If the main optical axis marks a 0 ° position, then the illuminated angular range in this plane can extend, for example, from -2 ° to + 5 °.
  • an optic in particular a secondary optic, which is embodied for example as a lens, is provided for a vehicle headlight.
  • This can have a coupling surface and a decoupling surface.
  • a structure is provided at the coupling-in surface and / or at the decoupling surface, with which transitions of at least two or some or all of the radiation sources are smoothed or blurred or "smoothed". This can be easily created a uniform photo.
  • the structure of the optics is formed for example by lines. These can be in parallel distance extend to each other. Furthermore, the lines preferably extend transversely to the main optical axis and / or transversely to the line of the radiation source matrix. In the installed state of the optics (secondary optics), for example in the vehicle headlight, the lines can extend in the vertical direction.
  • the smoothing at a respective line of optics takes place in an angle range in the light image of 0.2 ° to 3 °, preferably from 0.2 ° to 0.8 °, the angle range is seen in a plane in which the main optical axis extends and extends in the direction of the line of the radiation source matrix or in the installed state in the horizontal direction.
  • the optics (secondary optics) preferably have an asymmetrical coupling-in surface and / or an asymmetrical coupling-out surface.
  • the coupling-out surface of the optics (secondary optics) and / or the coupling-in surface of the optics (secondary optics) can have a vertex, wherein a first surface section and a second surface section can extend away from the vertex.
  • the first surface portion is preferably longer than the second surface portion.
  • an asymmetrical decoupling surface can be created in a simple manner.
  • the major optical axis preferably extends through the vertex (s).
  • the decoupling surface and / or the coupling-in surface can be designed convex or arc-shaped in a plane which extends along the main optical axis and which extends along the line of the radiation source matrix or which can extend in the installed state in the horizontal direction.
  • the optics (primary optics, secondary optics) consists of silicone, which leads to a weight advantage.
  • optics are, for example, a lens. It is conceivable to provide the optics (primary optics, secondary optics) when used in the vehicle headlight for a high beam function.
  • a module with a radiation source matrix and with an optics (primary optics) according to one or more of the preceding aspects.
  • This solution has the advantage that when needed with little device complexity simply combined several modules and the photos can be superimposed. If, for example, a module with 6 to 12 radiation sources arranged in the form of a matrix is provided, then a combination of two modules can lead to 12 to 24 pixels or, in the superposition of three modules, to 18 to 36 pixels.
  • the radiation source matrix is formed, for example, from light-emitting diodes (LEDs).
  • An LED or light emitting diode may be in the form of at least one individually packaged LED or in the form of at least one LED chip having one or more light emitting diodes.
  • the at least one LED can be equipped with at least one own and / or common optics for beam guidance, for example with at least one Fresnel lens or a collimator.
  • LEDs instead of or in addition to inorganic LEDs, for example based on AlInGaN or InGaN or AlIn-GaP, it is generally also possible to use organic LEDs (OLEDs, eg polymer OLEDs).
  • OLEDs organic LEDs
  • the LED chips can be directly emitting or have an upstream phosphor.
  • the LED may be a laser diode or a laser diode array.
  • the emission wavelengths of the LED can be in the ultraviolet, visible or infrared spectral range.
  • the LEDs can additionally be equipped with their own converter.
  • the LED chips emit white light in the standardized ECE white field of the automotive industry, for example realized by a blue emitter and a yellow / green converter.
  • the module has a plate or printed circuit board or Metal Core Printed Circuit Board (MCPCB) or an AL MCPCB to which the radiation sources are attached in one or more rows.
  • the optics in particular via an optic holder, are fixed to the plate.
  • the optical holder is for example simply formed by webs. The webs in turn may form a frame comprising the radiation sources.
  • the optics (primary optics) can then preferably be attached via their radial collar in the optics holder.
  • a connection can furthermore be provided on the plate.
  • This is, for example, a plug or a socket.
  • a so-called “binning resistor” or container resistance can be provided on the plate.
  • a NTC (Negative Temperature Coefficient) resistor to prevent overheating of the module on the plate.
  • a drive electronics can be mounted on the plate.
  • a respective group has a radiation source matrix, which is followed in each case by an optical system (primary optics) according to one or more of the preceding aspects.
  • a respective group has an optic (secondary optics), which is designed in particular according to one or more of the preceding aspects, and which is connected downstream of the primary optics.
  • the light images of the groups overlap.
  • the respective radiation source matrix with the associated optics can each be designed as a module according to one or more of the preceding aspects.
  • the main optical axis of a respective group is offset parallel to the main optical axis of the respective other group.
  • the main optical axes may in this case lie in a plane which extends parallel to the direction of extension of the line of the radiation source matrices or which extends horizontally, in particular in the installed state of a vehicle headlight.
  • the groups are the same.
  • a distance of the optical main axes of the groups is preferably selected such that the illuminated angle ranges of the central coupling surfaces overlap uniformly. This can lead to a resolution which is given by the following formula: "Angle range of a middle coupling surface / number of groups". If the illuminated angle range (pitch) of a central coupling surface is, for example, 3 °, a resolution of 1.5 ° in the region of the middle coupling surfaces can be achieved with uniform superposition of two groups. Two groups can thus overlap with half a pitch.
  • a headlight in particular for a vehicle, is provided with a module or an arrangement according to one or more of the preceding aspects.
  • a headlamp system for a vehicle may be provided which has a left and a right headlamp according to the preceding aspect.
  • the illuminated angle ranges of the central coupling surfaces of the module or the arrangement of the left headlamp can then be overlapped with the illuminated angle ranges of the central coupling surfaces of the module or the arrangement of the right headlamp.
  • the overlap for example, congruent or overlap can be done by an offset.
  • the superimposed area of both headlights can be offset, for example, by a certain proportion of the pitch, for example by a quarter pitch. The resolution can be further increased thereby.
  • FIG. 1a an optic is shown as a primary optic 1 in a front view, wherein a decoupling surface 2 can be seen.
  • a decoupling surface 2 can be seen due to the transparent design of the primary optics 1 is a structure of a rear coupling surface 4, see also FIG. 1b , and a radiation source matrix 6 can be seen.
  • FIG. 1b a side view of the primary optic 1 is shown.
  • the decoupling surface 2 has four corner regions 8 to 14. These are rounded off.
  • the according to FIG. 1a Upper corner regions 8 and 10 in this case have a smaller radius than the lower corner regions 12 and 14.
  • the corner regions 8 and 10 are also seen in the vertical direction arranged above. Due to the asymmetric trimming of the decoupling surface 2, an asymmetrical light image can be generated.
  • Primary optics 1 is the primary optic for the left vehicle headlight of a vehicle.
  • the corner regions 8 and 14 lie in an installed state inside and the other corner regions 10 and 12 outside. A trimming or rounding of the corner region 12 is greater than that of the corner region 14.
  • FIG. 1b is, as already explained above, the coupling surface 4 can be seen.
  • the single-row radiation source matrix 6 which has seven radiation sources in the form of light-emitting diodes (LEDs) 16 to 28.
  • the OSRAM type OSLON Black Flat (LUW HWQP) can be used as LED light source with a brightness bin of 6N (or higher) and with an electrical power consumption of 4.55 W.
  • FIG. 1b has the coupling surface 4 for a respective LED 16 to 28, a segment-like coupling surface 30 to 42.
  • the coupling surfaces 30 and 42 edge and the coupling surfaces 32 to 40 are arranged centrally.
  • the design of the middle coupling surfaces 32 to 40 is the same here.
  • a width of the edge-side coupling surfaces 30 and 42 seen in the row direction of the LEDs 16 to 28 is wider than that of the central coupling surfaces 32 to 40.
  • 30 and 42 provided by the corresponding design of the side segments provided as coupling surfaces an asymmetric design.
  • an asymmetric light distribution and an optimized ratio of light image width to center resolution are possible.
  • the asymmetry may be stronger, especially with fewer LEDs, or less, especially with many LEDs formed.
  • the light distribution is then designed so that the central region, in particular with an LED number of less than or equal to 8, provides a uniform pixel distribution, and the edge regions provide an asymmetrical light distribution.
  • Such a single-line radiation source matrix is managed by OSRAM under the product name SMATRIX or sMArTRIX.
  • FIG. 2 is the radiation source matrix 6 with the downstream primary optics 1 shown. Furthermore, an optic in the form of a secondary optics 44 is provided, which is connected downstream of the primary optics 1.
  • the secondary optics 44 is also designed asymmetrically. It has an asymmetric coupling-in surface 46 and an asymmetrical coupling-out surface 48.
  • the coupling-out surface 48 has a structure in the form of vertically extending lines 50, of which only one is provided with a reference numeral for the sake of simplicity.
  • Both the coupling surface 46 and the decoupling surface 48 are convex, with the main optical axis 56 passing through a respective vertex 52, 54. This is offset in this case to the center of the secondary optics 44.
  • the main optical axis 56 extends between the coupling surfaces 34 and 36 and thus between the LEDs 20 and 22. It is conceivable to make the main axis 56 to the line-shaped radiation source matrix 6 easy.
  • FIG. 3 shows an assembly 58 with a first group 60 and a second group 62.
  • a respective group 60, 62 in this case has a module 64 which in FIG. 4 is shown. Furthermore, a respective group has the secondary optics 44 connected downstream of the module 64.
  • the groups 60 and 62 are in this case arranged in such a way that their light images overlap and form a common light image 66, which preferably fulfills the ECE standard for vehicle headlights.
  • the module 64 has a printed circuit board 68 on which the radiation source matrix 6 is mounted. Furthermore, an optical holder in the form of a frame 70, which comprises the radiation source matrix 6, is arranged on the printed circuit board 68. Above the frame 70, the primary optic 1 is supported by its radial collar 72, see also FIG. 1b , Furthermore, a connection 74 is provided on the printed circuit board 68.
  • a respective module 64 of Figure 3 thus has seven LEDs 16 to 28, see also FIG. 1b , on. Thus, the light image 66 can be controlled with a total of 14 LEDs.
  • FIG. 5a the groups 60 and 62 are shown in which the secondary optics 44 and the modules 64 are arranged side by side.
  • the arrangement of the groups 60 and 62 in FIG. 3 offset each other.
  • Figure 5b shows a front view of the groups 60 and 62.
  • the lines 50 of the secondary optics 44 can be seen, which extend at a parallel distance from each other and in the vertical direction.
  • the radiation source arrays 6 of the modules 64 of the groups 60 and 62 are off FIG. 5a shown.
  • a binning resistor 76 and an NTC resistor 78 are provided for a respective printed circuit board 68.
  • a control module (LED Driver Module (LDM)) 80 is provided for controlling the individual LEDs.
  • FIG. 7 is the illuminated angle range of the light image 66 off FIG. 3 shown.
  • the middle LEDs 18 to 26 with the central coupling surfaces 32 to 40 in the light image 66 light off FIG. 3 each measured an angular range of 3 ° in a plane that is in accordance with FIG. 2 in the main optical axis 56 and the line of the radiation source matrix 6 extends.
  • the photographs of the modules 64 off FIG. 3 are then overlapped such that the from the middle LEDs 18 to 24 off FIG. 1b evenly overlap illuminated illumination areas.
  • a resolution of 1.5 ° is provided in the middle angle range.
  • the 0 ° position marks the position of the main optical axis 56, see also FIG.
  • the average angular range is provided with the resolution of 1.5 ° from -0 ° to + 6 ° and thus extends over a range of 15 °.
  • the angle range on the left which follows FIG. 1b with the LEDs 28 and the coupling surfaces 42 of a respective module 64, see FIG. 3b , is lit.
  • the angle range closes according to FIG. 1b with the LEDs 16 and the coupling surfaces 30 of the modules 64, see FIG. 3 is lit.
  • the left angle range then extends from -20 ° to -9 ° and the right angle range from + 6 ° to + 12 °.
  • a resolution of the left Angle range is 11 ° and a resolution of the right angle range 3 °.
  • FIG. 8 are the lines of the same light intensity of the light image off FIG. 3 shown, with all the LEDs of the modules 64 are turned on.
  • the main optical axis 56 from FIG. 2 is located at the intersection of the axes x and y.
  • the outer line 82 has a luminous intensity of 625 cd, the next inner line 84 a luminous intensity of 25,000 cd, the next inner line 86 a luminous intensity of 50,000 cd and the inner line 88 a luminous intensity of 75,000 cd.
  • FIG. 9 shows various photographs 90 to 100 of the arrangement 58 from FIG. 3 ,
  • the light images 90 to 100 are detected in a plane extending transversely to the main optical axis 56 FIG. 2 extends.
  • all LEDs are turned on.
  • the LEDs 22, see FIG. 1b of a respective module 64 FIG. 3 switched off, whereby an angle range of 3 ° is no longer illuminated.
  • two LEDs 22 and 24 in one of the modules 64 and one LED 22 in the other module 64 are turned off, whereby an angular range of 4.5 ° is not illuminated.
  • the LEDs 22 and 24 are then switched off in the case of a respective module 64.
  • the LED 26 is additionally switched off in one of the modules 64.
  • the LEDs 22 to 26 are switched off in both modules 64, so that an angle range of 9 ° is not illuminated.
  • a primary optic with a decoupling surface and a plurality of coupling surfaces, the opposite a radiation source matrix can be arranged.
  • the line-shaped coupling surfaces have, on the one hand, an end-side coupling-in surface and, on the other hand, a further end-side coupling-in surface. At least one of the end-side coupling surfaces is widened in comparison to a respective central coupling surface.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP17197505.5A 2016-12-01 2017-10-20 Optique primaire, optique secondaire, module, dispositif, phares de véhicule automobile et système de phares Active EP3330597B1 (fr)

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DE102016223972.4A DE102016223972A1 (de) 2016-12-01 2016-12-01 Primäroptik, sekundäroptik, modul, anordnung, fahrzeugscheinwerfer und scheinwerfersystem

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EP3330597A1 true EP3330597A1 (fr) 2018-06-06
EP3330597B1 EP3330597B1 (fr) 2020-02-19

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US (1) US10962187B2 (fr)
EP (1) EP3330597B1 (fr)
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Also Published As

Publication number Publication date
DE102016223972A1 (de) 2018-06-07
CN108131636B (zh) 2021-12-21
US10962187B2 (en) 2021-03-30
CN108131636A (zh) 2018-06-08
US20180156406A1 (en) 2018-06-07
EP3330597B1 (fr) 2020-02-19

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