EP3330597B1 - Primäroptik, sekundäroptik, modul, anordnung, fahrzeugscheinwerfer und scheinwerfersystem - Google Patents

Primäroptik, sekundäroptik, modul, anordnung, fahrzeugscheinwerfer und scheinwerfersystem Download PDF

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Publication number
EP3330597B1
EP3330597B1 EP17197505.5A EP17197505A EP3330597B1 EP 3330597 B1 EP3330597 B1 EP 3330597B1 EP 17197505 A EP17197505 A EP 17197505A EP 3330597 B1 EP3330597 B1 EP 3330597B1
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EP
European Patent Office
Prior art keywords
row
input coupling
optical unit
optics
coupling surfaces
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EP17197505.5A
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German (de)
English (en)
French (fr)
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EP3330597A1 (de
Inventor
Thomas Feil
Andreas Hartmann
Eugen PAPPELHEIM
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Osram Beteiligungsverwaltung GmbH
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Osram Beteilungsverwaltung GmbH
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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 optics, in particular primary optics, according to the preamble of claim 1. Furthermore, the invention relates to optics, in particular secondary optics. The invention also provides a module with a radiation source matrix. Furthermore, the invention relates to an arrangement with a plurality of radiation source matrices and optics. A vehicle headlight is also provided.
  • So-called matrix headlights for vehicles are known from the prior art. These have a matrix of light-emitting diodes (LEDs). Each individual LED can be controlled separately and thereby switched on, off and dimmed. The LEDs can be arranged on one or more lines and each form a light pixel.
  • LEDs light-emitting diodes
  • the EP 2 743 567 A1 discloses a lighting device with a light guide array which is connected to a correction optical part with a hemispherical exit surface, wherein the light guide and the correction part form an integral structure and are made of the same material.
  • the object of the present invention is to provide optics, in particular primary optics, for a radiation source matrix, optics, in particular secondary optics, for the radiation source matrix, a module with a radiation source matrix, an arrangement, a To create headlights and a headlight system in order to produce a high-quality light image in an economical manner.
  • the object with regard to the optics, in particular the primary optics, is achieved according to the features of claim 1, with regard to the module according to the features of claim 7, with regard to the arrangement according to the features with claim 8, with regard to the headlamp according to the features with claim 10 and with regard to of the headlight system according to the features of claim 11.
  • optics in particular primary optics, are provided for a radiation source matrix.
  • This has a plurality or a plurality of coupling surfaces arranged in at least one row and at least one coupling surface.
  • at least one of the coupling surfaces which is arranged at a line end of the line formed by the coupling surfaces arranged in at least one line and is also referred to below as a side or edge coupling surface, is widened in the direction of the at least one line.
  • at least one coupling-in area on the edge can be wider than a central coupling-in area.
  • Such optics enable an asymmetrical light distribution and an optimized ratio of light image width to center resolution when used with an upstream radiation source matrix. This is extremely advantageous when using the optics (primary optics) in a vehicle headlight, since a comparatively high resolution is achieved in a cost-effective manner in the center area and a broadened light image is created in the edge area by simply broadened at least one of the edge coupling-in surfaces.
  • both edge coupling-in surfaces or edge pixels or side pixels of the at least one line are widened.
  • the light image can thus have a comparatively large width on both edge sides in a device-technically simple manner, with a high resolution being present in the center.
  • the edge-side coupling surfaces have a different width from one another when viewed in the direction of the at least one line. If the optics are 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-based vehicle or a land-based vehicle.
  • the land vehicle can be a motor vehicle or a rail vehicle or a bicycle.
  • the use of the vehicle headlight in a truck or passenger car or motorcycle is particularly preferred.
  • the coupling surfaces are seen in a plane which extends in the direction of the at least one line and in the direction of the main optical axis of the optics.
  • the coupling surfaces have an arc shape in this plane.
  • the coupling-in surfaces can be elongated or web-like in a direction transverse to the at least one row and transverse to the main optical axis. You can each form part of a cylindrical outer surface.
  • the coupling surfaces preferably lie against one another, with the result that a transition of the coupling surfaces is not or hardly visible in the photograph.
  • the central coupling surfaces are preferably configured identically, which leads to a uniform light image in the central or central area.
  • the middle or central coupling surfaces are preferably all coupling surfaces without the coupling surfaces on the edge.
  • the vertices of the central coupling surfaces preferably lie in a common plane which extends, for example, transversely to the main optical axis and in the direction of the at least one line.
  • a high photographic quality with a high level of economy can be provided if the optics (primary optics) have 6 to 14, in particular 6 to 12, coupling surfaces, which can preferably be provided for a corresponding 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 if a corresponding number of radiation sources is used, and to a light image with a high resolution.
  • At least one lateral coupling surface extends from the adjacent coupling surface to its apex with a first, in particular curved, surface section.
  • This can be set to the main optical axis.
  • a second, in particular curved, surface section can then extend away from the apex, which is preferably positioned in relation to the main optical axis.
  • the second surface section can be wider than the first surface section when viewed in the direction of the line.
  • a depth of the second surface section measured in the direction of the main optical axis is preferably greater than a depth of the central coupling surfaces.
  • a widened coupling surface can thus be implemented in a device-technically simple manner.
  • the decoupling surface of the optics is preferably designed asymmetrically, with which an asymmetrical light image can be formed, which is extremely advantageous for a vehicle headlight.
  • the coupling-out surface is in particular elongated and preferably extends transversely to the main optical axis and in the direction of the at least one line.
  • the decoupling surface can have four corner areas on the circumference. In terms of device technology, at least one corner area or a plurality of corner areas or all corner areas are curved or trimmed or rounded to form the asymmetry. This configuration of the corner area or the corner areas furthermore means that undesired light reflections are prevented and artifact formation in the light distribution is reduced or avoided.
  • the corner areas on one side of the coupling-out area can have a smaller radius than the corner areas on the other side.
  • the corner areas with the large radius are preferably arranged below and the corner areas with the small radius above. By mirroring the secondary lens, the small radius is shown on the street.
  • the optics (primary optics) has a radial collar between the coupling-in surfaces and the coupling-out surface for easy assembly in the direction of the main optical axis. It is thus encompassed by a radial collar over which it can be attached.
  • the main optical axis can extend between two middle coupling surfaces when viewed in the direction of the line.
  • the main optical axis is offset from the center of the line. If, for example, 7 coupling surfaces with 5 central coupling surfaces are provided, the main optical axis can be arranged, for example, between the central coupling surface and the coupling surface adjacent to it.
  • a respective central coupling-in 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 is preferably measured in a plane that lies in the main optical axis and that extends parallel to the direction of extent of the line. When the optics (primary optics) are installed in the headlight, this can be the horizontal plane. Close the angular areas of the coupling surface essentially meet each other, which enables a homogeneous light image.
  • the optics are further configured such that an illuminated angular range in a plane in which the main optical axis lies and which extends parallel to the direction of extension of the line or horizontally is between +/- 20 °, preferably between +/- 40 °, more preferably between -20 ° and + 12 °.
  • the optics are designed such that they are provided for illuminating an angular range of the light image in a plane that extends parallel to the main optical axis and transversely to the direction of extent of the line or vertically, of 7 °. If the main optical axis marks a 0 ° position, the illuminated angular range in this plane can extend, for example, from -2 ° to + 5 °.
  • an optical system in particular a secondary optical system, which is designed, for example, as a lens, is provided for a vehicle headlight.
  • This can have a coupling surface and a coupling surface.
  • a structure is advantageously provided in the coupling-in surface and / or in the coupling-out surface, with which transitions of at least two or a part of or all of the radiation sources are smoothed or blurred or "smoothed". In this way, a uniform light image can be created in a simple manner.
  • the structure of the optics is formed, for example, by lines. These can be in parallel extend to each other. Furthermore, the lines preferably extend transversely to the main optical axis and / or transversely to the row 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 of a respective line of the optics takes place in an angular range in the light image from 0.2 ° to 3 °, preferably from 0.2 ° to 0.8 °, the angular range being seen in a plane in which the main optical axis extends and extends in the direction of the row of the radiation source matrix or in the installed state in the horizontal direction.
  • the optics (secondary optics) preferably have an asymmetrical coupling surface and / or an asymmetrical coupling surface.
  • the coupling-out surface of the optics (secondary optics) and / or the coupling-in surface of the optics (secondary optics) can have an apex, wherein a first surface section and a second surface section can extend away from the apex.
  • the first surface section is preferably longer than the second surface section.
  • an asymmetrical coupling-out area can be created in a simple manner.
  • the main optical axis preferably extends through the apex or apices.
  • the coupling-out surface and / or the coupling-in surface can be configured in a convex or arc-shaped manner in a plane that extends along the main optical axis and that extends along the line of the radiation source matrix or which can extend horizontally when installed.
  • the optics consist of silicone, which leads to a weight advantage.
  • the optics are, for example, a lens. It is conceivable to provide the optics (primary optics, secondary optics) for a high beam function when used in the vehicle headlight.
  • a module with a radiation source matrix and with optics (primary optics) according to one or more of the preceding aspects.
  • This solution has the advantage that, if required, several modules can be combined easily and the light images can be superimposed with little effort. If, for example, a module with 6 to 12 radiation sources arranged in a matrix is provided, a combination of two modules can lead to 12 to 24 pixels or, when three modules are superimposed, can lead to 18 to 36 pixels.
  • the radiation source matrix is formed, for example, from light-emitting diodes (LEDs).
  • An LED or light-emitting diode can be in the form of at least one individually packaged LED or in the form of at least one LED chip which has one or more light-emitting diodes.
  • the at least one LED can be equipped with at least one of its own and / or common optics for beam guidance, for example with at least one Fresnel lens or a collimator.
  • organic LEDs can generally also be used.
  • the LED chips can be directly emitting or have an upstream phosphor.
  • the LED can be a laser diode or a laser diode arrangement. It is also conceivable to provide an OLED luminescent layer or a plurality of OLED luminescent layers or an OLED luminescent area.
  • the emission wavelengths of the LEDs can be in the ultraviolet, visible or infrared spectral range.
  • the LEDs can also be equipped with their own converter.
  • the LED chips preferably emit white light in the standardized ECE white field of the automotive industry, for example implemented by a blue emitter and a yellow / green converter.
  • the module preferably 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. Furthermore, it can be provided that the optics (primary optics) are fixed to the plate, in particular via an optics holder.
  • a compact module can thus be designed in an extremely simple manner in terms of device technology.
  • the optics holder is simply formed by webs. The webs in turn can form a frame that encompasses the radiation sources.
  • the optics (primary optics) can then preferably be attached via their radial collar in the optics holder.
  • a connection can also be provided on the plate for electrical contacting and / or control of the radiation source matrix. This is, for example, a plug or a socket. Furthermore, a so-called “binning resistor” or container resistor can be provided on the plate. It is also conceivable to arrange an NTC (Negative Temperature Coefficient) resistor to avoid overheating of the module on the plate. Furthermore, control electronics can be attached to the plate.
  • NTC Negative Temperature Coefficient
  • a respective group has a radiation source matrix, which is followed by optics (primary optics) according to one or more of the preceding aspects. Furthermore, a respective group has optics (secondary optics) that are designed in particular in accordance with one or more of the preceding aspects and that are connected downstream of the primary optics.
  • the light images of the groups preferably overlap.
  • the arrangement can be used to increase the resolution of the emitted light image of the groups in a simple manner in terms of device technology.
  • 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.
  • device technology can be used simply set the resolution of the emitted photo of the groups.
  • the main optical axis of each group is offset parallel to the main optical axis of the other group.
  • the main optical axes can lie in a plane that extends parallel to the direction of extension of the row of radiation source matrices or that extends horizontally, in particular when a vehicle headlight is installed.
  • the groups are preferably configured identically.
  • a distance between the main optical axes of the groups is preferably selected such that the illuminated angular ranges of the central coupling surfaces overlap uniformly. This can lead to a resolution, which is given by the following formula: "Angular range of an average coupling area / number of groups". If the illuminated angular range (pitch) of a central coupling surface is, for example, 3 °, a resolution of 1.5 ° can be achieved in the region of the central coupling surfaces if two groups are uniformly superimposed. 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 headlight system for a vehicle can be provided that has a left and a right headlight according to the preceding aspect.
  • the illuminated angular ranges of the central coupling surfaces of the module or the arrangement of the left headlight can then be overlapped with the illuminated angular ranges of the central coupling surfaces of the module or the arrangement of the right headlight.
  • the overlap is congruent, for example, or the overlap can be made by an offset.
  • the superimposed area of the two headlights can be offset, for example, by a certain proportion of the pitch, for example by a quarter pitch. This can further increase the resolution.
  • an optics as primary optics 1 is shown in a front view, a coupling-out surface 2 being visible.
  • a coupling-out surface 2 being visible.
  • a radiation source matrix 6 can be seen.
  • Figure 1b a side view of the primary optics 1 is shown.
  • the coupling-out surface 2 has four corner regions 8 to 14. These are rounded.
  • the according Figure 1a Upper corner areas 8 and 10 have a smaller radius than the lower corner areas 12 and 14.
  • the asymmetrical trimming of the coupling-out surface 2 can produce an asymmetrical light image.
  • the primary optics 1 are the primary optics for the left vehicle headlight of a vehicle.
  • the corner areas 8 and 14 are in an installed state inside and the other corner areas 10 and 12 outside. Circumcision or rounding of the corner area 12 is larger than that of the corner area 14.
  • the coupling surface 4 can be seen. Opposite this, the single-line radiation source matrix 6 is shown, which has seven radiation sources in the form of light-emitting diodes (LEDs) 16 to 28.
  • the OSRAM type OSLON Black Flat (LUW HWQP) with a brightness bin of 6N (or higher) and an electrical power consumption of 4.55 W can be used as the LED light source
  • Figure 1b has the coupling-in surface 4 for a respective LED 16 to 28 a segment-like coupling-in surface 30 to 42.
  • the coupling-in surfaces 30 and 42 are arranged on the edge and the coupling-in surfaces 32 to 40 are arranged in the center.
  • the design of the middle coupling surfaces 32 to 40 is the same here.
  • a width of the edge coupling surfaces 30 and 42 in the row direction of the LEDs 16 to 28 is wider than that of the center coupling surfaces 32 to 40.
  • an asymmetrical design is achieved by the corresponding configuration of the coupling surfaces 30 and 42 provided as side segments. This enables an asymmetrical light distribution and an optimized ratio of the photo width to the center resolution.
  • the asymmetry can be made stronger, in particular with fewer LEDs, or less, in particular with many LEDs.
  • the light distribution is then designed such that the central area, in particular with an LED number of less than or equal to 8, provides a uniform pixel distribution and the edge areas provide an asymmetrical light distribution.
  • LEDs 16 to 28 are provided, the greater the asymmetry of the coupling-in surfaces 30 and 42 on the edge can be selected in order to generate a correspondingly broad light distribution.
  • Such a one-line radiation source matrix is managed at OSRAM under the product names SMATRIX or sMArTRIX.
  • the radiation source matrix 6 is shown with the primary optics 1 connected downstream. Furthermore, an optic in the form of a secondary optic 44 is provided, which is connected downstream of the primary optic 1.
  • the secondary optics 44 is also designed asymmetrically. It has an asymmetrical coupling-in surface 46 and an asymmetrical coupling-out surface 48.
  • the coupling-out surface 48 has a structure in the form of lines 50 extending in the vertical direction, of which only one is provided with a reference symbol for the sake of simplicity. Both the coupling-in surface 46 and the coupling-out surface 48 are convex, the optical main axis 56 running through a respective apex 52, 54. This is offset from the center of the secondary optics 44. Furthermore, the main optical axis 56 runs between the coupling surfaces 34 and 36 and thus between the LEDs 20 and 22. It is conceivable to easily adjust the main axis 56 to the line-shaped radiation source matrix 6.
  • FIG. 3 shows an arrangement 58 with a first group 60 and a second group 62.
  • a respective group 60, 62 here has a module 64 which is shown in FIG Figure 4 is shown.
  • a respective group has the secondary optics 44 connected downstream of the module 64.
  • the groups 60 and 62 are 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 circuit board 68 on which the radiation source matrix 6 is attached. Furthermore, an optics holder in the form of a frame 70, which comprises the radiation source matrix 6, is arranged on the printed circuit board 68. The primary optics 1 are held above the frame 70 via their radial collar 72, see also Figure 1b , Furthermore, a connection 74 is provided on the printed circuit board 68.
  • a respective module 64 from FIG. 3 thus has seven LEDs 16 to 28, see also Figure 1b , on. The light image 66 can thus be controlled with a total of 14 LEDs.
  • FIG. 5a shows a front view of the groups 60 and 62.
  • the lines 50 of the secondary optics 44 can be seen here, which extend at a parallel distance from one another and in the vertical direction.
  • 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.
  • the illuminated angular range of the light image 66 is off Figure 3 shown.
  • the middle LEDs 18 to 26 illuminate with the middle coupling surfaces 32 to 40 in the photo 66 Figure 3 each measured an angular range of 3 ° in one plane, which is in accordance with Figure 2 extends in the main optical axis 56 and the row of the radiation source matrix 6.
  • the light images of the modules 64 Figure 3 are then overlapped in such a way that those from the middle LEDs 18 to 24 extend from one another Figure 1b Overlap the illuminated angle areas evenly.
  • a resolution of 1.5 ° is provided in the middle angular range.
  • the 0 ° position marks the position of the main optical axis 56, see also Figure 2 .
  • the middle angular range is thus provided with a resolution of 1.5 ° from -0 ° to + 6 ° and thus extends over a range of 15 ° in total.
  • the angular range on the left which according to Figure 1b with the LEDs 28 and the coupling surfaces 42 of a respective module 64, see Figure 3b is illuminated.
  • the angular range that corresponds to Figure 1b with the LEDs 16 and the coupling surfaces 30 of the modules 64, see Figure 3 is illuminated.
  • the left angular range then extends from -20 ° to -9 ° and the right angular range from + 6 ° to + 12 °.
  • a resolution of the left Angular range is 11 ° and a resolution of the right angular range is 3 °.
  • FIG 8 are the lines of equal light intensity of the photo Figure 3 shown, with all LEDs of the modules 64 are switched on.
  • the main optical axis 56 Figure 2 is located at the intersection of the x and y axes.
  • the outer line 82 has a light intensity of 625 cd, the next inner line 84 a light intensity of 25000 cd, the next inner line 86 a light intensity of 50,000 cd and the inner line 88 a light intensity of 75000 cd.
  • Figure 9 shows various light images 90 to 100 of the arrangement 58 Figure 3 ,
  • the light images 90 to 100 are captured in a plane that extends transversely to the main optical axis 56 Figure 2 extends.
  • the photo 90 all LEDs are switched on.
  • the LEDs 22, see Figure 1b of a respective module 64 Figure 3 switched off, which means that an angular 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 switched off, so that an angular range of 4.5 ° is not illuminated.
  • the LEDs 22 and 24 are then switched off for 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, with the result that an angular range of 9 ° is not illuminated.
  • a primary optic is disclosed with a coupling-out surface and a multiplicity of coupling-in surfaces that lie opposite one another a radiation source matrix can be arranged.
  • the coupling surfaces arranged in a row have, on the one hand, an end coupling surface and, on the other hand, a further coupling surface at the end. At least one of the coupling surfaces at the end 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 Primäroptik, sekundäroptik, modul, anordnung, fahrzeugscheinwerfer und scheinwerfersystem Active EP3330597B1 (de)

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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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EP (1) EP3330597B1 (zh)
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US20180156406A1 (en) 2018-06-07
US10962187B2 (en) 2021-03-30
DE102016223972A1 (de) 2018-06-07
EP3330597A1 (de) 2018-06-06
CN108131636B (zh) 2021-12-21
CN108131636A (zh) 2018-06-08

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