EP2931556B1 - Light module for a vehicle headlamp - Google Patents

Light module for a vehicle headlamp Download PDF

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Publication number
EP2931556B1
EP2931556B1 EP13795411.1A EP13795411A EP2931556B1 EP 2931556 B1 EP2931556 B1 EP 2931556B1 EP 13795411 A EP13795411 A EP 13795411A EP 2931556 B1 EP2931556 B1 EP 2931556B1
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EP
European Patent Office
Prior art keywords
reflector
type
field
tolerance
light
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EP13795411.1A
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German (de)
French (fr)
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EP2931556A1 (en
Inventor
Friedrich Bauer
Peter ILLMAYR
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ZKW Group GmbH
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ZKW Group GmbH
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Publication of EP2931556A1 publication Critical patent/EP2931556A1/en
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    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas

Definitions

  • the invention relates to a light module for a motor vehicle or for a motor vehicle headlight, wherein the light module is designed to produce a dimmed light distribution, which has at least one horizontal HD line and an obliquely increasing HD line, and wherein the light module at least two Reflectors comprises, and wherein each reflector is associated with at least one LED light source, wherein at least one of the reflectors of the type HD apron reflector is which type is adapted to light of its associated at least one LED light source as apron light distribution with one in the light image imaging substantially horizontally extending HD line, and wherein at least one further reflector is of the asymmetric reflector type, which is adapted to image light of the at least one LED light source assigned to it as an asymmetry light distribution, the asymmetry light distribution being in the Essentially horizontal HD Li never and has a sloping HD line.
  • the invention relates to a vehicle headlamp with at least one above-mentioned light module.
  • each reflector is associated with at least one light source, with the above-mentioned problem particularly evident when the light sources are LED light sources.
  • Each reflector is associated with at least one LED light source, each LED light source having one or more light-emitting diodes (LEDs).
  • the construction of corresponding light modules takes place in such a way that the reflectors to the LED light sources, which are positioned on an LED board, are adjustable.
  • the adjustment of the reflectors then takes place in a specially designed system which detects the light distributions generated by the individual reflectors and the reflectors such positioned so that the light-dark transitions of the individual light distribution to each other are aligned so that there is a law-compliant total light distribution.
  • a very exact alignment of the reflectors is therefore of particular importance, since a slight deviation of the relative position of reflector and LED light source to each other by e.g. 0.1mm - 0.2mm already leads to a (vertical / horizontal) shift of the light distribution and to a defocusing and softening of the light-dark boundary in typical light module designs.
  • EP2119957 describes a generic light module according to the preamble of claim 1.
  • the at least one reflector of the type asymmetry reflector associated with at least one LED light source and the at least one reflector of the type HD front-mounted reflector associated with at least one LED light source to each other are arranged, all reflectors with respect to their associated LED light sources can be arranged in exactly one defined position, wherein reflectors of the asymmetry reflector type and reflectors of the type HD front-mounted reflector are designed such that in the arrangement of at least one reflector from Type asymmetry reflector in its defined position and at least one reflector of the type HD apron reflector in its defined position, the horizontal HD line of the total light distribution from the horizontal HD line of at least one reflector of the asymmetry reflector type and / or of the horizontal HD line of the at least one reflector vo m type HD front-end reflector is formed, each system consisting of reflector of a certain type and associated at least one LED light source of a, preferably adjustable, tolerance, so that horizontal HD
  • the reflectors can not be adjusted with respect to their LED light sources, but that a fixed position is provided in FIG which the reflectors are attached. As a result, complicated setting procedures can be avoided and the costs reduced accordingly.
  • the reflectors which are calculated and manufactured in accordance with the defined position with respect to the respective associated LED light sources, are designed such that that the HD line of the total light distribution is generated either by one of the two different reflector types (asymmetry, HD apron) or by both together. It is optimal in this case if the HD line is generated by the at least one asymmetry reflector, but if its HD line is too deep in the light image, this can be formed by the HD front-end reflector.
  • At least two reflectors are provided for generating the apron light distribution, at least one reflector of the type HD apron reflector and at least one reflector of the near-front reflector type.
  • the at least one reflector of the type HD apron reflector generates the upper part of the apron light distribution with the upper boundary of the apron light distribution with the horizontal boundary line, while the at least one reflector of the type near-front reflector the underlying portion of Apron light distribution forms.
  • the two partial light distributions overlap.
  • the horizontal boundary line or HD line forms the HD line of this apron light distribution, but can not be seen in the total light distribution as a light-dark boundary, since it lies within the other partial light distributions.
  • top, bottom, vertical, vertical, horizontal in connection with a photograph do not refer to the real image projected on a roadway ahead of a vehicle, but from a vertical screen in a defined Distance (eg 10 or 25 meters) projected photo.
  • each system consisting of at least one reflector of a certain type and associated at least one LED light source is subject to a preferably adjustable tolerance, so that horizontal HD lines are generated in the light images generated by reflectors of the same type and associated at least one LED light source within a vertical tolerance field, with the tolerance field of each reflector type each having an upper tolerance field boundary and a lower tolerance field boundary.
  • tolerance field is spoken by a reflector or reflector type, so this is the tolerance or the tolerance field of the system reflector - light source meant. For the sake of simplicity, however, only tolerance or tolerance field of the reflector is usually discussed.
  • This "tolerance of a reflector type” or this "tolerance field of a reflector type” results from the fact that reflectors of a certain type are subject to a tolerance, the assigned at least one LED light source itself is subject to a tolerance, the position of the at least one LED Light source is subject to tolerance, and also the position of the reflectors is tolerant.
  • tolerance field now means the following: we consider abstractly a light unit for generating a light distribution with a horizontal bright-dark boundary, the light unit has a defined light source, which is positioned on a support plate at a defined location. The carrier plate or the light unit has a defined position for the reflector.
  • the light-dark boundary In a first such light unit, the light-dark boundary will assume a certain vertical position. In a second light unit constructed with identical components, the light-dark boundary will have a different vertical position, etc. (for the term “vertical”, see also the discussion below).
  • the vertical range within which the generated cut-off is defined as the tolerance field.
  • the "height" of the tolerance field ie the vertical extent, can be set primarily on the accuracy of the production of the reflectors.
  • a defined area that is to say a defined upper and lower limit and thus also a defined height for the tolerance field of a certain type of reflector is specified. Reflectors, which do not meet these conditions, which is an outside of the tolerance field lying light-dark boundary are not used in series production.
  • a light module is composed of two or more such light units. After the LED light sources of all light units sit on a common support plate or at least fixed to each other, and the positions of the associated reflectors is provided fixed, an adjustment of the tolerance fields can only be done on the design of the reflectors. It is therefore no longer referred to in the following light units, but of different types of reflectors and the tolerance fields associated with these types of reflectors
  • the at least one reflector of the type HD front-end reflector and the at least one reflector of the asymmetric reflector type are formed such that in their defined with respect to the associated LED light sources positions the tolerance fields of Reflectors of the type HD apron reflector and the asymmetric reflector type do not overlap one another in the vertical direction, so that the tolerance field lower limit of the at least one asymmetry reflector is above or equal to the tolerance field upper limit of the at least one HD apron type reflector Reflector is located.
  • the at least one reflector of the type HD apron reflector and the at least one reflector of the asymmetric reflector type are designed such that the tolerance fields are defined in their positions defined with respect to the associated LED light sources the reflectors of the type HD front reflector and the type asymmetry reflector overlap each other in the vertical direction, such that the tolerance field lower limit of at least one asymmetry reflector below the tolerance field upper limit of the at least one reflector of the type HD apron reflector is located and the tolerance field upper limit of at least one reflector of the asymmetry reflector type above the tolerance field upper limit of at least one reflector of the type HD apron reflector.
  • the at least one reflector of the near-front reflector type is designed such that in its defined with respect to its associated at least one LED light sources position the tolerance field upper limit of the tolerance field of the at least one reflector of the Nah type Pre-reflector is below the tolerance field lower limit of the at least one reflector of the asymmetry reflector type.
  • the tolerance field of the at least one X-type reflector does not mean that each X-type reflector has its own tolerance field but that the reflector is designed so that its HD line is within the tolerance field the type X reflectors is located.
  • the at least one near-front reflector type reflector is designed in such a way that the tolerance field upper limit of the at least one near-field reflector type reflector is below the tolerance field upper limit of the at least one HD type reflector -Field reflector and above the tolerance field lower limit of at least one reflector of the type HD apron reflector.
  • the at least one reflector of the asymmetric reflector type is designed such that the horizontal HD line of the total light distribution within the tolerance field of the at least one reflector of the asymmetric reflector type.
  • the tolerance fields of the at least one asymmetric reflector type reflector and the tolerance field of the at least one HD front reflector type reflector overlap one another in the vertical direction by 0.1 ° -0.2 °.
  • the overlap area between the tolerance field upper limit of the HD apron light distribution and the tolerance field lower limit of the asymmetry light distribution thus extends over a range of 0.1 ° -0.2 ° in the vertical direction.
  • each LED light source in each case comprises at least one light-emitting diode.
  • the LED light sources assigned to the at least one reflector of the asymmetric reflector type and to the at least one reflector of the type HD front-mounted reflector are mounted on a common carrier plate, preferably a common LED. Board are arranged.
  • the at least one LED light source associated with the at least one near-front reflector type reflector is likewise positioned on the common carrier plate, preferably on the common LED board.
  • fastening means and / or positioning means are provided, by means of which reflectors of the same type on different support plates in the same position with respect to the LED Light sources of the support plate can be positioned and fastened.
  • the frequency distribution of the positions of the horizontal HD lines within the tolerance fields of the reflectors of a distribution curve for example follow a Gaussian distribution curve, the distribution curves each having a distribution maximum.
  • the light image is legally compliant, it is further provided that in their defined with respect to the associated LED light sources positions the distribution maximum of the tolerance field of at least one reflector of the asymmetry reflector type above the distribution maximum of the tolerance field the at least one reflector of the type HD apron reflector is located.
  • the maximum distribution of the tolerance field of the at least one reflector asymmetric reflector above the tolerance field upper limit of the tolerance field of at least one reflector of the type HD front-mounted reflector.
  • the distribution maximum of the tolerance field of the at least one reflector of the type HD apron reflector is below the tolerance field lower limit of the tolerance field of the at least one reflector of the asymmetric reflector type.
  • FIG. 1 shows a light module 100 for a motor vehicle or for a motor vehicle headlight, wherein the light module 100 is formed to produce a low beam distribution LV, as shown in FIG FIG. 1 is shown schematically.
  • a low-beam distribution LV has, in a known manner, a horizontal HD line HD and an HD line HD 'rising at an angle thereto.
  • the light module 100 comprises three reflectors 1, 2, 3, wherein each reflector 1, 2, 3 is associated with an LED light source 10, 20, 30.
  • Each LED light source 10, 20, 30 each includes one or more light emitting diodes.
  • Light of the LED light sources 10, 20, 30 is projected via the associated reflectors 1, 2, 3 in each case as a partial light distribution in an area in front of the vehicle, the superposition of the partial light distribution results in the total light distribution of a headlamp or a light module of a headlamp ,
  • the first reflector 1 is a reflector of the asymmetric reflector type, which is adapted to image light of its associated LED light source 10 as an asymmetry light distribution LV1, the asymmetry light distribution LV1 being a substantially horizontally extending HD Line HD1 and a sloping HD line HD1 'has.
  • Such an asymmetry light distribution LV1 is in FIG. 2 and in detail again in FIG. 7 shown.
  • the second reflector 2 is a reflector of the HD front-surface reflector type, which is adapted to image light of the LED light source 20 assigned to it as apron light distribution LV2 with an HD line HD2 extending substantially horizontally in the light image ,
  • Such an apron light distribution LV2 is in FIG. 2 and in detail again in FIG. 8 shown.
  • the third reflector 3 is a reflector of the near-front reflector type, which is configured to emit light of its associated LED light source 30 as near-front light distribution LV3 with an HD line HD3 extending substantially horizontally in the light image map.
  • Such near-front light distribution LV3 is in FIG. 2 and in detail again in FIG. 9 shown.
  • the reflector 2 of the type HD apron reflector generates the upper part of the apron light distribution LV2 with the upper boundary of the apron light distribution with the horizontal boundary line HD2, the further reflector 3 of the near-front reflector type generates the underlying portion of the Apron light distribution forms.
  • the two partial light distributions LV2, LV3 overlap.
  • the horizontal boundary line or HD line HD3 forms the HD line of this apron light distribution, but can not be seen in the total light distribution as a light-dark boundary, since it lies within the other partial light distributions.
  • top, bottom, vertical, vertical, horizontal in connection with a photograph do not refer to the real image projected on a roadway ahead of a vehicle, but from a vertical screen in a defined Distance (eg 10 or 25 meters) projected photo.
  • the reflectors 1, 2, 3 are fixedly positioned with respect to their LED light sources 10, 20, 30, and on the other hand, the individual system consisting respectively of reflector and associated light source are fixedly positioned relative to one another or only in each case exactly predetermined position can be attached to each other.
  • complicated setting procedures can be avoided and the costs reduced accordingly.
  • This tolerance is basically adjustable and, after frequently the LED light sources are already supplied preassembled on a printed circuit board and also the positions of the reflectors are already predetermined with respect to the circuit boards, usually on the manufacturing accuracy of the reflectors are still affected.
  • the horizontal HD lines HD1, HD2, HD3 of the partial light images LV1, LV2, LV3 generated with reflectors 1, 2, 3 of a specific type and associated LED light source 10, 20, 30 are within vertical tolerance fields TF1, TF2, TF3.
  • Such tolerance fields TF1, TF2, TF3 are in FIG. 3 and FIG. 4 shown.
  • the tolerance field TF1, TF2, TF3 of each reflector type in each case has an upper tolerance field limit TF1 ', TF2', TF3 'and a lower tolerance field limit TF1 ", TF2", TF3 "If, in connection with the term” tolerance "or” Tolerance "is spoken by a reflector or reflector type, so is so the tolerance or the Tolerance field of the system reflector - light source meant. For the sake of simplicity, however, only tolerance or tolerance field of the reflector is usually discussed.
  • This "tolerance of a reflector type” or this "tolerance field of a reflector type” results from the fact that reflectors of a certain type are subject to a tolerance, the associated at least one LED light source itself is subject to a tolerance, the position of the at least one LED Light source is subject to a tolerance, and also the position of the reflectors is tolerant, as already mentioned above.
  • tolerance field now means the following: we consider, for example, the system of reflector 1 and LED light source 10, which generates a light distribution LV1 with a horizontal bright-dark boundary HD1.
  • This system has a defined light source 10, which is positioned on a support plate at a defined location. The system further has a defined position for the reflector 1.
  • the bright-dark boundary HD1 will assume a certain vertical position.
  • the light-dark boundary will have a different vertical position, etc.
  • That vertical area within which the generated light-dark boundary may be located is referred to as tolerance field TF1.
  • Light units with an out-of-tolerance HD line can not be used.
  • the frequency distribution of the position of the horizontal HD lines HD1, HD2, HD3 within the tolerance fields TF1, TF2, TF3 of the different reflector types 1, 2, 3 follows as in FIG. 3 and FIG. 4 shown a distribution curve K1, K2, K3, for example, a Gaussian distribution curve, wherein the distribution curves K1, K2, K3 each have a distribution maximum K1m, K2m, K3m.
  • the reflector 2 type HD front reflector and the reflector 1 of the asymmetry reflector type are formed such that in their positions defined with respect to the associated LED light sources 10, 20, the tolerance fields TF1, TF2 of Reflectors 1, 2 type HD apron reflector and the type asymmetry reflector do not overlap each other in the vertical direction, so that the tolerance field lower limit TF1 "of the asymmetry reflector 1 above or at the same height of the tolerance field upper limit TF2 'of the reflector. 2 of the type HD apron reflector.
  • FIG. 4 provided that the reflector 2 type HD apron reflector and the reflector 1 of the asymmetry reflector type are formed such that in their defined with respect to the associated LED light sources 10, 20, the tolerance fields TF1, TF2 of the reflectors.
  • the reflector near-front reflector type 3 is formed such that in its defined with respect to its associated at least one LED light sources 30 position tolerance field upper limit TF3 'of the tolerance field TF3 of the reflector 3 of the type Nah -Field reflector below the tolerance field lower limit TF1 "of the reflector 1 of the asymmetry reflector type.
  • the tolerance field of the at least one X-type reflector does not mean that each X-type reflector has its own tolerance field but that the reflector is designed so that its HD line is within the tolerance field the type X reflectors is located.
  • the reflector near-front reflector type 3 is formed such that the tolerance field upper limit TF3 'of the reflector near-field reflector type 3 below the tolerance field upper limit TF2' of the reflector 2 of the type HD apron reflector and above the tolerance field lower limit TF2 "of the reflector 2 type HD apron reflector is.
  • the reflector 1 of the asymmetric reflector type is designed in such a way that the position of the horizontal HD line HD of the desired or prescribed position Total light distribution LV is within the tolerance field TF1 of the reflector 1 of the asymmetric reflector type.
  • TF2 of the reflector 2 of the type HD front-end reflector overlap each other in the vertical direction by 0.1 ° - 0.2 °.
  • the overlap area between the tolerance field upper limit TF2 'of the HD front-end light distribution LV2 and the tolerance field lower limit TF1 "of the asymmetry light distribution LV1 thus extends over a range of 0.1 ° -0.2 ° in the vertical direction.
  • FIG. 3 and FIG. 4 Furthermore, it can be seen, is provided in order to obtain the largest possible number of light modules, the light image is legally compliant, further provided that in their defined with respect to the associated LED light sources 10, 20 positions the distribution maximum K1m of Tolerance field TF1 of the reflector 1 of the type asymmetry reflector above the distribution maximum K2m of the tolerance field TF2 of the reflector 2 type HD apron reflector is.
  • the distribution maximum K1m of the tolerance field TF1 of the reflector 1 type asymmetry reflector above the tolerance field upper limit TF2 'of the tolerance field TF2 of the reflector 2 type HD apron reflector is provided in this context according to the invention.
  • the distribution maximum K2m of the tolerance field TF2 of the reflector type HD front reflector reflector 2 is below the tolerance field lower limit TF1 "of the tolerance field TF1 of the reflector type asymmetric reflector.
  • FIGS. 5 and 6 Two more extreme situations that can arise when assembling a light module.
  • FIG. 5 Corresponding to a light module FIG. 5 is the light-dark boundary HD1 generated by the reflector 1 in the uppermost region of the tolerance field TF1 of the reflectors of the asymmetry reflector type. Regardless of where within the tolerance field TF2 of the HD front-end reflectors specifically the bright-dark boundary HD2 of the reflector 2, in this case, the horizontal light-dark line HD of the low beam distribution of the reflector 1 is generated.
  • the bright-dark boundary HD2 at the lowest limit of the tolerance field TF2 while the HD line HD3 of the reflector 3 is at the uppermost limit of the tolerance field TF3 and thus above the HD line HD2.
  • FIG. 6 Corresponding to a light module FIG. 6 is the light-dark boundary HD1 generated by the reflector 1 in the lowermost region of the tolerance field TF1 of the reflectors of the asymmetry reflector type. Furthermore, the bright-dark boundary HD2, which is generated by the reflector 2, here lies in the uppermost region of the tolerance field TF2 of the HD apron reflectors and thus above the cut-off line HD1. Thus, in this example, the horizontal light-dark line HD of the low-beam light distribution is generated by the reflector 2.
  • the asymmetry component HD 'of the low beam distribution LV is generated by the reflector 1 in each case.
  • FIGS. 7 to 9 show them in sequence the principal shape of the asymmetry light distribution LV1 ( FIG. 7 ), the HD apron light distribution ( FIG. 8 ) and the near-apron light distribution ( FIG. 9 ).
  • FIG. 10 now shows a superimposition of the light distributions LV1, LV2, LV3 with the layers of the light-dark boundaries HD1, HD2, HD3 as in FIG. 5 shown. As can be clearly seen, here the bright-dark boundary HD of the total light distribution LV of reflector 1 is formed.
  • FIG. 11 finally shows a superposition of the light distributions LV1, LV2, LV3 in correspondence to FIG. 6 ; Here, the light-dark boundary HD of the total light distribution LV of reflector 2 is formed.
  • each reflector has at least one light source assigned to it. All the reflectors used must each meet the conditions described above with reference to the example of one reflector per sub-light distribution.
  • the apron light distribution is also possible to produce with only a single type of reflector, whereby again exactly one or even two or more reflectors of this type can be used. However, better results are generally achieved if the apron light distribution is generated by means of at least two reflectors 2, 3 of different types, as described above.

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

Die Erfindung betrifft ein Lichtmodul für ein Kraftfahrzeug bzw. für einen Kraftfahrzeug-Scheinwerfer, wobei das Lichtmodul zur Erzeugung einer abgeblendeten Lichtverteilung ausgebildet ist, welche zumindest eine horizontale HD-Linie und eine dazu schräg ansteigende HD-Linie aufweist, und wobei das Lichtmodul zumindest zwei Reflektoren umfasst, und wobei jedem Reflektor zumindest eine LED-Lichtquelle zugeordnet ist, wobei zumindest einer der Reflektoren vom Typ HD-Vorfeld-Reflektor ist, welcher Typ dazu eingerichtet ist, Licht der ihm zugeordneten zumindest einen LED-Lichtquelle als Vorfeldlichtverteilung mit einer im Lichtbild im Wesentlichen horizontal verlaufenden HD-Linie abzubilden, und wobei zumindest ein weiterer Reflektor vom Typ Asymmetrie-Reflektor ist, welcher Typ dazu eingerichtet ist, Licht der ihm zugeordneten zumindest einen LED-Lichtquelle als Asymmetrie-Lichtverteilung abzubilden, wobei die Asymmetrie-Lichtverteilung eine im Wesentlichen horizontal verlaufende HD-Linie und eine schräg ansteigende HD-Linie aufweist.The invention relates to a light module for a motor vehicle or for a motor vehicle headlight, wherein the light module is designed to produce a dimmed light distribution, which has at least one horizontal HD line and an obliquely increasing HD line, and wherein the light module at least two Reflectors comprises, and wherein each reflector is associated with at least one LED light source, wherein at least one of the reflectors of the type HD apron reflector is which type is adapted to light of its associated at least one LED light source as apron light distribution with one in the light image imaging substantially horizontally extending HD line, and wherein at least one further reflector is of the asymmetric reflector type, which is adapted to image light of the at least one LED light source assigned to it as an asymmetry light distribution, the asymmetry light distribution being in the Essentially horizontal HD Li never and has a sloping HD line.

Weiters betrifft die Erfindung einen Fahrzeugscheinwerfer mit zumindest einem oben genannten Lichtmodul.Furthermore, the invention relates to a vehicle headlamp with at least one above-mentioned light module.

Aufgrund der laufenden Verkleinerung der Reflektorsysteme werden die Toleranzanforderungen an die Positioniergenauigkeit der Lichtquellen in Bezug auf den Reflektor, jene der einzelnen Reflektoren zueinander und die Anforderungen an die Formtreue der einzelnen Reflektoren ständig höher. Dies trifft insbesondere dann zu, wenn eine Gesamtlichtverteilung, beispielsweise eine abgeblendete Lichtverteilung, insbesondere eine Abblendlichtverteilung, mit einem definierten Hell-Dunkel-Übergang (HD-Linie), aus zwei oder mehreren Lichtverteilungen, welche mittels zweier oder mehreren Reflektoren erzeugt werden, gebildet wird. Jedem Reflektor ist dabei zumindest eine Lichtquelle zugeordnet, wobei die oben genannte Problematik insbesondere dann zu Tage tritt, wenn die Lichtquellen LED-Lichtquellen sind. Jedem Reflektor ist dabei zumindest eine LED-Lichtquelle zugeordnet, wobei jede LED-Lichtquelle eine oder mehrere Leuchtdioden (LEDs) aufweist.Due to the ongoing reduction of the reflector systems, the tolerance requirements on the positioning accuracy of the light sources with respect to the reflector, those of the individual reflectors to each other and the requirements for the form fidelity of the individual reflectors are constantly higher. This is especially true when an overall light distribution, for example a dimmed light distribution, in particular a low beam distribution, with a defined light-dark transition (HD line), from two or more light distributions, which are generated by means of two or more reflectors is formed , Each reflector is associated with at least one light source, with the above-mentioned problem particularly evident when the light sources are LED light sources. Each reflector is associated with at least one LED light source, each LED light source having one or more light-emitting diodes (LEDs).

Aktuell erfolgt der Aufbau entsprechender Lichtmodule dergestalt, dass die Reflektoren zu den LED-Lichtquellen, welche auf einer LED-Platine positioniert sind, einstellbar sind. Die Einstellung der Reflektoren erfolgt dann in einer eigens dafür ausgelegten Anlage, welche die mit den einzelnen Reflektoren erzeugten Lichtverteilungen erfasst und die Reflektoren derart positioniert, dass die Hell-Dunkel-Übergänge der einzelnen Lichtverteilung zueinander derart ausgerichtet sind, dass sich eine gesetzeskonforme Gesamtlichtverteilung ergibt.Currently, the construction of corresponding light modules takes place in such a way that the reflectors to the LED light sources, which are positioned on an LED board, are adjustable. The adjustment of the reflectors then takes place in a specially designed system which detects the light distributions generated by the individual reflectors and the reflectors such positioned so that the light-dark transitions of the individual light distribution to each other are aligned so that there is a law-compliant total light distribution.

Eine äußerst exakte Ausrichtung der Reflektoren ist dabei deswegen von besonderer Bedeutung, da eine geringfügige Abweichung der Relativposition von Reflektor und LED-Lichtquelle zueinander um z.B. 0,1mm - 0,2mm bei typischen Lichtmodulauslegungen bereits zu einer (vertikalen/horizontalen) Verschiebung der Lichtverteilung und zu einer Defokussierung und Aufweichung der Hell-Dunkel-Grenze führt.A very exact alignment of the reflectors is therefore of particular importance, since a slight deviation of the relative position of reflector and LED light source to each other by e.g. 0.1mm - 0.2mm already leads to a (vertical / horizontal) shift of the light distribution and to a defocusing and softening of the light-dark boundary in typical light module designs.

Die oben beschriebene Methode zur Ausrichtung von Reflektoren in Bezug auf LED-Lichtquellen ist teuer und aufwändig und daher für aktuelle High-Fahrzeugscheinwerfer geeignet. Für kostengünstigere Fahrzeuge ist die Verwendung eines solchen teuren und aufwändigen Verfahrens allerdings nicht konkurrenzfähig zu herkömmlichen, im Einsatz befindlichen Halogen-Fahrzeugscheinwerfem. EP2119957 beschreibt ein gattungsgemäßes Lichtmodul nach dem Oberbegriff des Anspruchs 1.The method described above for aligning reflectors with respect to LED light sources is expensive and expensive and therefore suitable for current high-vehicle headlights. However, for lower cost vehicles, the use of such an expensive and expensive process is not competitive with conventional halogen vehicle headlamps in use. EP2119957 describes a generic light module according to the preamble of claim 1.

Es ist eine Aufgabe der Erfindung, ein Lichtmodul zu schaffen, bei welchem auf wesentlich einfachere und kostengünstigere Art und Weise eine gesetzeskonforme Lichtverteilung mit einer Hell-Dunkel-Grenze mittels zweier oder mehrerer Reflektoren erzeugt werden kann.It is an object of the invention to provide a light module in which in a much simpler and more cost-effective manner, a law-compliant light distribution with a cut-off line can be generated by means of two or more reflectors.

Diese Aufgabe wird mit einem eingangs erwähnten Lichtmodul dadurch gelöst, dass erfindungsgemäß die dem zumindest einen Reflektor vom Typ Asymmetrie-Reflektor zugeordnete zumindest eine LED-Lichtquelle und die dem zumindest einen Reflektor vom Typ HD-Vorfeld-Reflektor zugeordnete zumindest eine LED-Lichtquelle fix zueinander angeordnet sind, alle Reflektoren in Bezug auf die ihnen zugeordneten LED-Lichtquellen in genau einer definierten Position anordenbar sind, wobei Reflektoren vom Typ Asymmetrie-Reflektor und Reflektoren vom Typ HD-Vorfeld-Reflektor derart ausgebildet sind, dass bei Anordnung von zumindest einem Reflektor vom Typ Asymmetrie-Reflektor in seiner definierten Position und zumindest einem Reflektor vom Typ HD-Vorfeld-Reflektor in seiner definierten Position die horizontale HD-Linie der Gesamtlichtverteilung von der horizontalen HD-Linie des zumindest einen Reflektors vom Typ Asymmetrie-Reflektor und/oder von der horizontalen HD-Linie des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor gebildet wird, wobei jedes System bestehend aus Reflektor eines bestimmten Typs und zugeordneter zumindest einer LED-Lichtquelle einer, vorzugsweise einstellbaren, Toleranz unterliegt, sodass horizontale HD-Linien in den von Reflektoren desselben Typs und zugeordneter zumindest einer LED-Lichtquelle erzeugten Lichtbildern innerhalb eines vertikalen Toleranzfeldes liegen, wobei das Toleranzfeld jedes Reflektortyps jeweils eine obere Toleranzfeldgrenze und eine untere Toleranzfeldgrenze aufweist, der zumindest eine Reflektor vom Typ HD-Vorfeld-Reflektor sowie der zumindest eine Reflektor vom Typ Asymmetrie-Reflektor derart ausgebildet sind, dass in ihren in Bezug auf die zugeordneten LED-Lichtquellen definierten Positionen die Toleranzfelder der Reflektoren vom Typ HD-Vorfeld-Reflektor und vom Typ Asymmetrie-Reflektor einander in vertikaler Richtung überlappen, derart dass die Toleranzfeld-Untergrenze des zumindest einen Asymmetrie-Reflektors unterhalb der Toleranzfeld-Obergrenze des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor liegt und die Toleranzfeld-Obergrenze des zumindest einen Reflektors vom Typ Asymmetrie-Reflektor oberhalb der Toleranzfeld-Obergrenze des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor liegt, und die Häufigkeitsverteilung der Lage der horizontalen HD-Linien innerhalb der Toleranzfelder der Reflektoren einer Verteilungskurve, beispielsweise einer Gaußschen Verteilungskurve, folgen, wobei die Verteilungskurven jeweils ein Verteilungsmaximum aufweisen, und wobei das Verteilungsmaximum des Toleranzfeldes des zumindest einen Reflektors vom Typ Asymmetrie-Reflektor oberhalb der Toleranzfeld-Obergrenze des Toleranzfeldes des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor liegt, und/oder das Verteilungsmaximum des Toleranzfeldes des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor unterhalb der Toleranzfeld-Untergrenze des Toleranzfeldes des zumindest einen Reflektors vom Typ Asymmetrie-Reflektor liegt.This object is achieved with an aforementioned light module in that according to the invention the at least one reflector of the type asymmetry reflector associated with at least one LED light source and the at least one reflector of the type HD front-mounted reflector associated with at least one LED light source to each other are arranged, all reflectors with respect to their associated LED light sources can be arranged in exactly one defined position, wherein reflectors of the asymmetry reflector type and reflectors of the type HD front-mounted reflector are designed such that in the arrangement of at least one reflector from Type asymmetry reflector in its defined position and at least one reflector of the type HD apron reflector in its defined position, the horizontal HD line of the total light distribution from the horizontal HD line of at least one reflector of the asymmetry reflector type and / or of the horizontal HD line of the at least one reflector vo m type HD front-end reflector is formed, each system consisting of reflector of a certain type and associated at least one LED light source of a, preferably adjustable, tolerance, so that horizontal HD lines in the reflectors of the same type and associated with at least one LED Light source generated within a vertical tolerance field, wherein the tolerance field of each reflector type each having an upper tolerance field boundary and a lower tolerance field boundary, the at least one reflector of the type HD front-end reflector and the at least one reflector of the asymmetric reflector type are formed such that in their positions defined with respect to the associated LED light sources, the tolerance fields of the HD front reflector and the asymmetric reflector type reflectors overlap one another in the vertical direction such that the lower tolerance limit of the at least one asymmetrical reflector below the Tol Eranzfeld upper limit of the at least one reflector of the type HD apron reflector is and the tolerance field upper limit of at least one reflector of the asymmetry reflector type above the tolerance field upper limit of at least a reflector of the type HD front-end reflector is, and the frequency distribution of the position of the horizontal HD lines within the tolerance fields of the reflectors of a distribution curve, such as a Gaussian distribution curve follow, the distribution curves each having a distribution maximum, and wherein the distribution maximum of the tolerance field of the at least one reflector of the asymmetric reflector type above the tolerance field upper limit of the tolerance field of the at least one reflector of the type HD front reflector, and / or the distribution maximum of the tolerance field of the at least one reflector of the HD front reflector type below the tolerance field -Untergrenze the tolerance field of the at least one reflector of the asymmetry reflector type is.

Entsprechend der Erfindung ist vorgesehen, dass die Reflektoren nicht in Bezug auf ihre LED-Lichtquellen eingestellt werden können, sondern dass eine fixe Position vorgesehen ist, in welcher die Reflektoren befestigt werden. Dadurch lassen sich aufwändige Einstellprozeduren vermeiden und entsprechend die Kosten senken.According to the invention, it is provided that the reflectors can not be adjusted with respect to their LED light sources, but that a fixed position is provided in FIG which the reflectors are attached. As a result, complicated setting procedures can be avoided and the costs reduced accordingly.

Um trotzdem ein zufriedenstellendes Lichtbild mit einer gesetzeskonformen Hell-Dunkel-Grenze der Gesamtlichtverteilung erzielen zu können, ist erfindungsgemäß vorgesehen, dass die Reflektoren, welche entsprechend der definierten Position in Bezug auf die jeweils zugeordneten LED-Lichtquellen berechnet und gefertigt sind, derart ausgestaltet sind, dass die HD-Linie der Gesamtlichtverteilung entweder von einem der beiden unterschiedlichen Reflektortypen (Asymmetrie, HD-Vorfeld) oder von beiden gemeinsam erzeugt wird. Optimal ist es dabei, wenn die HD-Linie von dem zumindest einen Asymmetrie-Reflektor erzeugt wird, liegt dessen HD-Linie im Lichtbild aber zu tief, kann diese von dem HD-Vorfeld-Reflektor gebildet werden.In order nevertheless to be able to achieve a satisfactory light image with a law-compliant cut-off of the total light distribution, it is provided according to the invention that the reflectors, which are calculated and manufactured in accordance with the defined position with respect to the respective associated LED light sources, are designed such that that the HD line of the total light distribution is generated either by one of the two different reflector types (asymmetry, HD apron) or by both together. It is optimal in this case if the HD line is generated by the at least one asymmetry reflector, but if its HD line is too deep in the light image, this can be formed by the HD front-end reflector.

Bei einer vorteilhaften Ausführungsform der Erfindung ist vorgesehen, dass zur Erzeugung der Vorfeld-Lichtverteilung zumindest zwei Reflektoren vorgesehen sind, zumindest ein Reflektor vom Typ HD-Vorfeld-Reflektor sowie zumindest ein Reflektor vom Typ Nah-Vorfeld-Reflektor.In an advantageous embodiment of the invention it is provided that at least two reflectors are provided for generating the apron light distribution, at least one reflector of the type HD apron reflector and at least one reflector of the near-front reflector type.

Der zumindest eine Reflektor vom Typ HD-Vorfeld-Reflekor erzeugt dabei den oberen Teil der Vorfeld-Lichtverteilung mit der oberen Begrenzung der Vorfeld-Lichtverteilung mit der horizontalen Begrenzungslinie, während der zumindest eine Reflektor vom Typ Nah-Vorfeld-Reflektor den darunter liegenden Anteil der Vorfeld-Lichtverteilung bildet. Die beiden Teil-Lichtverteilungen überlappen sich. Die horizontale Begrenzungslinie oder HD-Linie bildet die HD-Linie dieser Vorfeld-Lichtverteilung, ist in der Gesamtlichtverteilung aber nicht als Hell-Dunkel-Grenze zu erkennen, da sie innerhalb der anderen Teil-Lichtverteilungen liegt.The at least one reflector of the type HD apron reflector generates the upper part of the apron light distribution with the upper boundary of the apron light distribution with the horizontal boundary line, while the at least one reflector of the type near-front reflector the underlying portion of Apron light distribution forms. The two partial light distributions overlap. The horizontal boundary line or HD line forms the HD line of this apron light distribution, but can not be seen in the total light distribution as a light-dark boundary, since it lies within the other partial light distributions.

Die Begriffe wie "oben", "unten", "vertikal", "horizontal" in Zusammenhang mit einem Lichtbild beziehen sich dabei nicht auf das real auf eine vor einem Fahrzeug liegende Fahrbahn projizierte Lichtbild, sondern aus das auf einen vertikalen Schirm in einer definierten Entfernung (z.B. 10 oder 25 Meter) projizierte Lichtbild.The terms "top", "bottom", "vertical", "horizontal" in connection with a photograph do not refer to the real image projected on a roadway ahead of a vehicle, but from a vertical screen in a defined Distance (eg 10 or 25 meters) projected photo.

Weiters ist vorgesehen, dass jedes System bestehend aus zumindest einem Reflektor eines bestimmten Typs und zugeordneter zumindest einer LED-Lichtquelle einer, vorzugsweise einstellbaren, Toleranz unterliegt, sodass horizontale HD-Linien in den von Reflektoren desselben Typs und zugeordneter zumindest einer LED-Lichtquelle erzeugten Lichtbildern innerhalb eines vertikalen Toleranzfeldes liegen, wobei das Toleranzfeld jedes Reflektortyps jeweils eine obere Toleranzfeldgrenze und eine untere Toleranzfeldgrenze aufweist.Furthermore, it is envisaged that each system consisting of at least one reflector of a certain type and associated at least one LED light source is subject to a preferably adjustable tolerance, so that horizontal HD lines are generated in the light images generated by reflectors of the same type and associated at least one LED light source within a vertical tolerance field, with the tolerance field of each reflector type each having an upper tolerance field boundary and a lower tolerance field boundary.

Wenn im Folgenden im Zusammenhang mit Toleranz (Toleranzfeld) von einem Reflektoren bzw. Reflektortyp gesprochen wird, so ist damit die Toleranz bzw. das Toleranzfeld des Systems Reflektor - Lichtquelle gemeint. Der Einfachheit halber wird aber zumeist lediglich von Toleranz bzw. Toleranzfeld des Reflektors gesprochen.If in the following in connection with tolerance (tolerance field) is spoken by a reflector or reflector type, so this is the tolerance or the tolerance field of the system reflector - light source meant. For the sake of simplicity, however, only tolerance or tolerance field of the reflector is usually discussed.

Diese "Toleranz eines Reflektor-Typs" bzw. dieses "Toleranzfeld eines Reflektor-Typs" ergibt sich daraus, dass Reflektoren eines bestimmten Typs einer Toleranz unterliegen, die zugeordnete zumindest eine LED-Lichtquelle selbst einer Toleranz unterliegt, die Position der zumindest einen LED-Lichtquelle einer Toleranz unterliegt, und auch die Position der Reflektoren toleranzbehaftet ist.This "tolerance of a reflector type" or this "tolerance field of a reflector type" results from the fact that reflectors of a certain type are subject to a tolerance, the assigned at least one LED light source itself is subject to a tolerance, the position of the at least one LED Light source is subject to tolerance, and also the position of the reflectors is tolerant.

Der Begriff Toleranzfeld bedeutet nun folgendes: wir betrachten abstrakt eine Lichteinheit zur Erzeugung einer Lichtverteilung mit einer horizontalen Hell-Dunkelgrenze, die Lichteinheit weist eine definierte Lichtquelle auf, die auf einer Trägerplatte an definierter Stelle positioniert ist. Die Trägerplatte oder die Lichteinheit weist eine definierte Position für den Reflektor auf.The term tolerance field now means the following: we consider abstractly a light unit for generating a light distribution with a horizontal bright-dark boundary, the light unit has a defined light source, which is positioned on a support plate at a defined location. The carrier plate or the light unit has a defined position for the reflector.

Bei einer ersten solchen Lichteinheit wird die Hell-Dunkelgrenze eine bestimme vertikale Lage einnehmen. Bei einer zweiten, mit baugleichen Bauteilen aufgebauten Lichteinheit wird die Hell-Dunkelgrenze eine andere vertikale Lage aufweisen, usw. (zum Begriff "vertikal" siehe auch die Erörterungen weiter unten).In a first such light unit, the light-dark boundary will assume a certain vertical position. In a second light unit constructed with identical components, the light-dark boundary will have a different vertical position, etc. (for the term "vertical", see also the discussion below).

Betrachtet man eine große Anzahl von Lichteinheiten, so wird sich die Lage der Hell-Dunkelgrenze um eine bestimmte Lage häufen, nach oben und unten hin wird sich die Anzahl der Hell-Dunkel-Grenzen verringern.If one looks at a large number of light units, the position of the light-dark boundary will pile up around a certain position; up and down, the number of light-dark boundaries will decrease.

Jener vertikale Bereich, innerhalb dem die erzeugte Hell-Dunkel-Grenze liegt, wird als Toleranzfeld bezeichnet. Die "Höhe" des Toleranzfeldes, also die vertikale Ausdehnung, kann in erster Linie über die Genauigkeit der Fertigung der Reflektoren eingestellt werden.The vertical range within which the generated cut-off is defined as the tolerance field. The "height" of the tolerance field, ie the vertical extent, can be set primarily on the accuracy of the production of the reflectors.

Üblicherweise wird ein definierter Bereich, das heißt eine definierte obere und untere Grenze und somit auch eine definierte Höhe für das Toleranzfeld eines bestimmten Reflektor-Typs vorgegeben. Reflektoren, welche diese Bedingungen nicht erfüllen, welche also eine außerhalb des Toleranzfeldes liegende Hell-Dunkel-Grenze erzeugen, werden in der Serienfertigung nicht verwendet.Usually, a defined area, that is to say a defined upper and lower limit and thus also a defined height for the tolerance field of a certain type of reflector is specified. Reflectors, which do not meet these conditions, which is an outside of the tolerance field lying light-dark boundary are not used in series production.

Bei der vorliegenden Erfindung wird ein Lichtmodul aus zwei oder mehreren solchen Lichteinheiten aufgebaut. Nachdem die LED-Lichtquellen aller Lichteinheiten auf einer gemeinsamen Trägerplatte sitzen oder zumindest fix zueinander angeordnet sind, und auch die Positionen der zugeordneten Reflektoren fix vorgesehen ist, kann eine Einstellung der Toleranzfelder nur noch über die Ausgestaltung der Reflektoren erfolgen. Es wird daher im weiteren nicht mehr von Lichteinheiten gesprochen, sondern von unterschiedlichen Typen von Reflektoren und den diesen Typen von Reflektoren zugeordneten ToleranzfeldernIn the present invention, a light module is composed of two or more such light units. After the LED light sources of all light units sit on a common support plate or at least fixed to each other, and the positions of the associated reflectors is provided fixed, an adjustment of the tolerance fields can only be done on the design of the reflectors. It is therefore no longer referred to in the following light units, but of different types of reflectors and the tolerance fields associated with these types of reflectors

Bei einer nicht erfindungsgemäßen Ausführungsform ist vorgesehen, dass der zumindest eine Reflektor vom Typ HD-Vorfeld-Reflektor sowie der zumindest eine Reflektor vom Typ Asymmetrie-Reflektor derart ausgebildet sind, dass in ihren in Bezug auf die zugeordneten LED-Lichtquellen definierten Positionen die Toleranzfelder der Reflektoren vom Typ HD-Vorfeld-Reflektor und vom Typ Asymmetrie-Reflektor einander in vertikaler Richtung nicht überlappen, sodass die Toleranzfeld-Untergrenze des zumindest einen Asymmetrie-Reflektors oberhalb oder auf gleicher Höhe der Toleranzfeld-Obergrenze des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektors liegt.In a non-inventive embodiment, it is provided that the at least one reflector of the type HD front-end reflector and the at least one reflector of the asymmetric reflector type are formed such that in their defined with respect to the associated LED light sources positions the tolerance fields of Reflectors of the type HD apron reflector and the asymmetric reflector type do not overlap one another in the vertical direction, so that the tolerance field lower limit of the at least one asymmetry reflector is above or equal to the tolerance field upper limit of the at least one HD apron type reflector Reflector is located.

Mit dieser Realisierung kann erreicht werden, dass - wie dies grundsätzlich wünschenswert ist - die horizontale Hell-Dunkel-Grenze der Gesamtlichtverteilung der abgeblendeten Lichtverteilung von zumindest einem Reflektor vom Typ Asymmetrie-Reflektor erzeugt wird. Bei der oben genannten Ausführungsform kann allerdings bei einer nicht unbeträchtlichen Anzahl an Lichtmodulen der Effekt auftreten, dass sich vertikale Hell-Dunkel-Streifen unterhalb der obersten HD-Linie ergeben, was unerwünscht ist.With this realization can be achieved that - as is basically desirable - the horizontal cut-off of the total light distribution of the dimmed light distribution of at least one reflector of the asymmetric reflector type is generated. In the above-mentioned embodiment, however, with a not inconsiderable number of light modules, the effect that vertical light-dark stripes appear below the uppermost HD line may occur, which is undesirable.

Um dies zu vermeiden, ist erfindungsgemäß vorgesehen, dass der zumindest eine Reflektor vom Typ HD-Vorfeld-Reflektor sowie der zumindest eine Reflektor vom Typ Asymmetrie-Reflektor derart ausgebildet sind, dass in ihren in Bezug auf die zugeordneten LED-Lichtquellen definierten Positionen die Toleranzfelder der Reflektoren vom Typ HD-Vorfeld-Reflektor und vom Typ Asymmetrie-Reflektor einander in vertikaler Richtung überlappen, derart dass die Toleranzfeld-Untergrenze des zumindest einen Asymmetrie-Reflektors unterhalb der Toleranzfeld-Obergrenze des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor liegt und die Toleranzfeld-Obergrenze des zumindest einen Reflektors vom Typ Asymmetrie-Reflektor oberhalb der Toleranzfeld-Obergrenze des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor liegt.In order to avoid this, it is provided according to the invention that the at least one reflector of the type HD apron reflector and the at least one reflector of the asymmetric reflector type are designed such that the tolerance fields are defined in their positions defined with respect to the associated LED light sources the reflectors of the type HD front reflector and the type asymmetry reflector overlap each other in the vertical direction, such that the tolerance field lower limit of at least one asymmetry reflector below the tolerance field upper limit of the at least one reflector of the type HD apron reflector is located and the tolerance field upper limit of at least one reflector of the asymmetry reflector type above the tolerance field upper limit of at least one reflector of the type HD apron reflector.

Durch dieses "Zusammenrücken" und Überlappen der Toleranzfelder nimmt man in Kauf, dass in gewissen Fällen die Hell-Dunkel-Grenze der Gesamtlichtverteilung von einem HD-Vorfeld-Reflektor erzeugt wird, ein solchen Lichtbild ist allerdings besser als jenes mit vertikalen Hell-Dunkel-Streifen, und ein solches Lichtmodul kann in der Regel problemlos verwendet werden.By this "collapse" and overlap of the tolerance fields one accepts that in certain cases the cut-off of the total light distribution is generated by an HD apron reflector, but such a light image is better than that with vertical light-dark Strip, and such a light module can usually be used easily.

Weiters ist vorteilhafterweise vorgesehen, dass der zumindest eine Reflektor vom Typ Nah-Vorfeld-Reflektor derart ausgebildet ist, dass in seiner in Bezug auf die ihm zugeordnete zumindest eine LED-Lichtquellen definierten Position die Toleranzfeld-Obergrenze des Toleranzfeldes des zumindest einen Reflektors vom Typ Nah-Vorfeld-Reflektor unterhalb der Toleranzfeld-Untergrenze des zumindest einen Reflektors vom Typ Asymmetrie-Reflektor liegt.Furthermore, it is advantageously provided that the at least one reflector of the near-front reflector type is designed such that in its defined with respect to its associated at least one LED light sources position the tolerance field upper limit of the tolerance field of the at least one reflector of the Nah type Pre-reflector is below the tolerance field lower limit of the at least one reflector of the asymmetry reflector type.

Auf diese Weise wird zuverlässig vermieden, dass die Hell-Dunkel-Grenze eines Nah-Vorfeld-Reflektors, die in der Regel nicht die geforderte Schärfe, Gradient etc. für eine HD-Linie einer abgeblendeten Lichtverteilung aufweist, zu der HD-Linie der Gesamtlichtverteilung beiträgt.In this way, it is reliably avoided that the cut-off of a near-front reflector, which does not usually have the required sharpness, gradient, etc. for an HD line of dimmed light distribution, to the HD line of the total light distribution contributes.

Weiters wird angemerkt, dass die Formulierung, dass "das Toleranzfeld des zumindest einen Reflektors vom Typ X" nicht bedeutet, dass jeder Reflektor vom Typ X ein eigenes Toleranzfeld hat, sondern dass der Reflektor derart ausgebildet ist, dass seine HD-Linie innerhalb des Toleranzfeldes der Reflektoren vom Typ X liegt.It is further noted that the phrase that "the tolerance field of the at least one X-type reflector" does not mean that each X-type reflector has its own tolerance field but that the reflector is designed so that its HD line is within the tolerance field the type X reflectors is located.

Mit Vorteil ist außerdem vorgesehen, dass der zumindest eine Reflektor vom Typ Nah-Vorfeld-Reflektor derart ausgebildet ist, dass die Toleranzfeld-Obergrenze des zumindest einen Reflektors vom Typ Nah-Vorfeld-Reflektor unterhalb der Toleranzfeld-Obergrenze des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor und oberhalb der Toleranzfeld-Untergrenze des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor liegt.Advantageously, it is also provided that the at least one near-front reflector type reflector is designed in such a way that the tolerance field upper limit of the at least one near-field reflector type reflector is below the tolerance field upper limit of the at least one HD type reflector -Field reflector and above the tolerance field lower limit of at least one reflector of the type HD apron reflector.

Damit wird zusätzlich ein Überlapp der Vorfeld-Lichtverteilungen und somit eine homogene Lichtverteilung erreicht.Thus, an overlap of the apron light distributions and thus a homogeneous light distribution is additionally achieved.

Damit zuverlässig die gewünschte Lage der HD-Linie innerhalb zulässiger Grenzen realisiert werden kann, ist weiters vorteilhafterweise vorgesehen, dass der zumindest eine Reflektor vom Typ Asymmetrie-Reflektor derart ausgebildet ist, dass die horizontale HD-Linie der Gesamtlichtverteilung innerhalb des Toleranzfeldes des zumindest einen Reflektors vom Typ Asymmetrie-Reflektor liegt.In order to reliably realize the desired position of the HD line within admissible limits, it is further advantageously provided that the at least one reflector of the asymmetric reflector type is designed such that the horizontal HD line of the total light distribution within the tolerance field of the at least one reflector of the asymmetric reflector type.

Vorzugsweise ist außerdem vorgesehen, dass das Toleranzfelder des zumindest einen Reflektors vom Typ Asymmetrie-Reflektor und das Toleranzfeld des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor einander in vertikaler Richtung um 0,1° - 0,2° überlappen.Preferably, it is also provided that the tolerance fields of the at least one asymmetric reflector type reflector and the tolerance field of the at least one HD front reflector type reflector overlap one another in the vertical direction by 0.1 ° -0.2 °.

Der Überlappungsbereich zwischen der Toleranzfeld-Obergrenze der HD-Vorfeld-Lichtverteilung und der Toleranzfeld-Untergrenze der Asymmetrie-Lichtverteilung erstreckt sich also über einen Bereich von 0,1° - 0,2° in vertikaler Richtung.The overlap area between the tolerance field upper limit of the HD apron light distribution and the tolerance field lower limit of the asymmetry light distribution thus extends over a range of 0.1 ° -0.2 ° in the vertical direction.

Bei einer konkreten Ausführungsform ist vorgesehen, dass jede LED-Lichtquelle jeweils zumindest eine Leuchtdiode umfasst.In a specific embodiment, it is provided that each LED light source in each case comprises at least one light-emitting diode.

Wie weiter oben schon erwähnt, ist außerdem noch vorgesehen, dass vorzugsweise die dem zumindest einen Reflektor vom Typ Asymmetrie-Reflektor und die dem zumindest einen Reflektor vom Typ HD-Vorfeld-Reflektor zugeordneten LED-Lichtquellen auf einer gemeinsamen Trägerplatte, vorzugsweise einer gemeinsamen LED-Platine angeordnet sind.As already mentioned above, it is additionally provided that preferably the LED light sources assigned to the at least one reflector of the asymmetric reflector type and to the at least one reflector of the type HD front-mounted reflector are mounted on a common carrier plate, preferably a common LED. Board are arranged.

Ebenso ist mit Vorteil vorgesehen, dass die dem zumindest einen Reflektor vom Typ Nah-Vorfeld-Reflektor zugeordnete zumindest eine LED-Lichtquelle ebenfalls auf der gemeinsamen Trägerplatte, vorzugsweise auf der gemeinsamen LED-Platine positioniert ist.Likewise, it is advantageously provided that the at least one LED light source associated with the at least one near-front reflector type reflector is likewise positioned on the common carrier plate, preferably on the common LED board.

Um eine - innerhalb der Toleranzen - von Lichtmodul zu Lichtmodul gleich Position der einzelnen Reflektoren gewährleisten zu können, ist außerdem vorgesehen, dass Befestigungsmittel und/oder Positioniermittel vorgesehen sind, mittels welcher Reflektoren vom selben Typ auf unterschiedlichen Trägerplatten in derselben Position in Bezug auf die LED-Lichtquellen der Trägerplatte positionier- und befestigbar sind.In order to be able to ensure the same position of the individual reflectors within the tolerances of light module to light module, it is additionally provided that fastening means and / or positioning means are provided, by means of which reflectors of the same type on different support plates in the same position with respect to the LED Light sources of the support plate can be positioned and fastened.

Typischerweise ist vorgesehen, dass die Häufigkeitsverteilung der Lagen der horizontalen HD-Linien innerhalb der Toleranzfelder der Reflektoren einer Verteilungskurve, beispielsweise einer Gaußschen Verteilungskurve folgen, wobei die Verteilungskurven jeweils ein Verteilungsmaximum aufweisen.Typically, it is provided that the frequency distribution of the positions of the horizontal HD lines within the tolerance fields of the reflectors of a distribution curve, for example follow a Gaussian distribution curve, the distribution curves each having a distribution maximum.

Um eine möglichst große Anzahl an Lichtmodulen zu erhalten, deren Lichtbild gesetzeskonform ist, ist weiters vorgesehen, dass in ihren in Bezug auf die zugeordneten LED-Lichtquellen definierten Positionen das Verteilungsmaximum des Toleranzfeldes des zumindest einen Reflektors vom Typ Asymmetrie-Reflektor oberhalb des Verteilungsmaximums des Toleranzfeldes des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor liegt.In order to obtain the largest possible number of light modules, the light image is legally compliant, it is further provided that in their defined with respect to the associated LED light sources positions the distribution maximum of the tolerance field of at least one reflector of the asymmetry reflector type above the distribution maximum of the tolerance field the at least one reflector of the type HD apron reflector is located.

Weiters ist in diesem Zusammenhang erfindungsgemäß vorgesehen, dass das Verteilungsmaximum des Toleranzfeldes des zumindest einen Reflektors vom Typ Asymmetrie-Reflektor oberhalb der Toleranzfeld-Obergrenze des Toleranzfeldes des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor liegt.Furthermore, it is provided in this context according to the invention that the maximum distribution of the tolerance field of the at least one reflector asymmetric reflector above the tolerance field upper limit of the tolerance field of at least one reflector of the type HD front-mounted reflector.

Schließlich ist noch erfindungsgemäß vorgesehen, dass das Verteilungsmaximum des Toleranzfeldes des zumindest einen Reflektors vom Typ HD-Vorfeld-Reflektor unterhalb der Toleranzfeld-Untergrenze des Toleranzfeldes des zumindest einen Reflektors vom Typ Asymmetrie-Reflektor liegt.Finally, it is provided according to the invention that the distribution maximum of the tolerance field of the at least one reflector of the type HD apron reflector is below the tolerance field lower limit of the tolerance field of the at least one reflector of the asymmetric reflector type.

Im Folgenden ist die Erfindung an Hand der Zeichnung näher erörtert. In dieser zeigt

  • Fig. 1 eine Abblendlichtverteilung erzeugt mit drei unterschiedlichen Reflektoren,
  • Fig. 2 die Abblendlichtverteilung aus Figur 1, zerlegt in ihre drei Teillichtverteilungen,
  • Fig. 3 eine erste Lage der Toleranzfelder der drei Reflektoren,
  • Fig. 4 eine erfindungsgemäße Lage der Toleranzfelder der drei Reflektoren,
  • Fig. 5 eine erste beispielhafte Lage der Hell-Dunkel-Grenzen bei einer Lage der Toleranzfelder wie in Figur 4 gezeigt,
  • Fig. 6 eine weitere beispielhafte Lage der Hell-Dunkel-Grenzen bei einer Lage der Toleranzfelder wie in Figur 4 gezeigt,
  • Fig. 7 eine Asymmetrie-Lichtverteilung,
  • Fig. 8 eine HD-Vorfeld-Lichtverteilung,
  • Fig. 9 eine Nah-Vorfeld-Lichtverteilung,
  • Fig. 10 eine Überlagerung der Lichtverteilungen aus den Figuren 7 - 9, und
  • Fig. 11 eine weitere mögliche Überlagerung der Lichtverteilungen aus den Figuren 7 - 9.
In the following the invention is discussed in more detail with reference to the drawing. In this shows
  • Fig. 1 a low beam distribution generated with three different reflectors,
  • Fig. 2 the low beam distribution FIG. 1 , broken down into its three partial light distributions,
  • Fig. 3 a first position of the tolerance fields of the three reflectors,
  • Fig. 4 an inventive position of the tolerance fields of the three reflectors,
  • Fig. 5 a first exemplary position of the light-dark boundaries in a position of the tolerance fields as in FIG. 4 shown,
  • Fig. 6 a further exemplary position of the light-dark boundaries in a position of the tolerance fields as in FIG. 4 shown,
  • Fig. 7 an asymmetry light distribution,
  • Fig. 8 an HD apron light distribution,
  • Fig. 9 a near-apron light distribution,
  • Fig. 10 a superposition of the light distributions from the FIGS. 7 to 9 , and
  • Fig. 11 another possible superposition of the light distributions from the FIGS. 7 to 9 ,

Figur 1 zeigt ein Lichtmodul 100 für ein Kraftfahrzeug bzw. für einen Kraftfahrzeug-Scheinwerfer, wobei das Lichtmodul 100 zur Erzeugung einer Abblendlichtverteilung LV ausgebildet ist, wie sie in Figur 1 schematisch dargestellt ist. Eine solche Abblendlichtverteilung LV weist in bekannter Weise eine horizontale HD-Linie HD und eine dazu schräg ansteigende HD-Linie HD' auf. FIG. 1 shows a light module 100 for a motor vehicle or for a motor vehicle headlight, wherein the light module 100 is formed to produce a low beam distribution LV, as shown in FIG FIG. 1 is shown schematically. Such a low-beam distribution LV has, in a known manner, a horizontal HD line HD and an HD line HD 'rising at an angle thereto.

In der gezeigten Ausführungsform umfasst das Lichtmodul 100 drei Reflektoren 1, 2, 3, wobei jedem Reflektor 1, 2, 3 eine LED-Lichtquelle 10, 20, 30 zugeordnet ist. Jede LED-Lichtquelle 10, 20, 30 umfasst jeweils eine oder mehrere Leuchtdioden.In the embodiment shown, the light module 100 comprises three reflectors 1, 2, 3, wherein each reflector 1, 2, 3 is associated with an LED light source 10, 20, 30. Each LED light source 10, 20, 30 each includes one or more light emitting diodes.

Licht der LED-Lichtquellen 10, 20, 30 wird über die zugeordneten Reflektoren 1, 2, 3 jeweils als Teil-Lichtverteilung in einen Bereich vor dem Fahrzeug projiziert, die Überlagerung der Teil-Lichtverteilung ergibt die Gesamtlichtverteilung eines Scheinwerfers bzw. eines Lichtmoduls eines Scheinwerfers.Light of the LED light sources 10, 20, 30 is projected via the associated reflectors 1, 2, 3 in each case as a partial light distribution in an area in front of the vehicle, the superposition of the partial light distribution results in the total light distribution of a headlamp or a light module of a headlamp ,

Bei dem ersten Reflektor 1 handelt es sich um einen Reflektor vom Typ Asymmetrie-Reflektor, welcher Typ dazu eingerichtet ist, Licht der ihm zugeordneten LED-Lichtquelle 10 als Asymmetrie-Lichtverteilung LV1 abzubilden, wobei die Asymmetrie-Lichtverteilung LV1 eine im Wesentlichen horizontal verlaufende HD-Linie HD1 und eine schräg ansteigende HD-Linie HD1' aufweist.The first reflector 1 is a reflector of the asymmetric reflector type, which is adapted to image light of its associated LED light source 10 as an asymmetry light distribution LV1, the asymmetry light distribution LV1 being a substantially horizontally extending HD Line HD1 and a sloping HD line HD1 'has.

Eine solche Asymmetrie-Lichtverteilung LV1 ist in Figur 2 und im Detail noch einmal in Figur 7 dargestellt.Such an asymmetry light distribution LV1 is in FIG. 2 and in detail again in FIG. 7 shown.

Bei dem zweiten Reflektoren 2 handelt es sich um einen Reflektor vom Typ HD-Vorfeld-Reflektor ist, welcher Typ dazu eingerichtet ist, Licht der ihm zugeordneten LED-Lichtquelle 20 als Vorfeldlichtverteilung LV2 mit einer im Lichtbild im Wesentlichen horizontal verlaufenden HD-Linie HD2 abzubilden.The second reflector 2 is a reflector of the HD front-surface reflector type, which is adapted to image light of the LED light source 20 assigned to it as apron light distribution LV2 with an HD line HD2 extending substantially horizontally in the light image ,

Eine solche Vorfeldlichtverteilung LV2 ist in Figur 2 und im Detail noch einmal in Figur 8 dargestellt.Such an apron light distribution LV2 is in FIG. 2 and in detail again in FIG. 8 shown.

Bei dem dritten Reflektor 3 handelt es sich um einen Reflektor vom Typ Nah-Vorfeld-Reflektor, welcher Typ dazu eingerichtet ist, Licht der ihm zugeordneten LED-Lichtquelle 30 als Nah-Vorfeldlichtverteilung LV3 mit einer im Lichtbild im Wesentlichen horizontal verlaufenden HD-Linie HD3 abzubilden.The third reflector 3 is a reflector of the near-front reflector type, which is configured to emit light of its associated LED light source 30 as near-front light distribution LV3 with an HD line HD3 extending substantially horizontally in the light image map.

Eine solche Nah-Vorfeldlichtverteilung LV3 ist in Figur 2 und im Detail noch einmal in Figur 9 dargestellt.Such near-front light distribution LV3 is in FIG. 2 and in detail again in FIG. 9 shown.

Zur Erzeugung der Vorfeld-Lichtverteilung sind also zwei Reflektoren 2, 3 vorgesehen, wobeiTo generate the apron light distribution so two reflectors 2, 3 are provided, wherein

der Reflektor 2 vom Typ HD-Vorfeld-Reflekor den oberen Teil der Vorfeld-Lichtverteilung LV2 mit der oberen Begrenzung der Vorfeld-Lichtverteilung mit der horizontalen Begrenzungslinie HD2 erzeugt, der weitere Reflektor 3 vom Typ Nah-Vorfeld-Reflektor erzeugt den darunter liegenden Anteil der Vorfeld-Lichtverteilung bildet. Die beiden Teil-Lichtverteilungen LV2, LV3 überlappen sich. Die horizontale Begrenzungslinie oder HD-Linie HD3 bildet die HD-Linie dieser Vorfeld-Lichtverteilung, ist in der Gesamtlichtverteilung aber nicht als Hell-Dunkel-Grenze zu erkennen, da sie innerhalb der anderen Teil-Lichtverteilungen liegt.the reflector 2 of the type HD apron reflector generates the upper part of the apron light distribution LV2 with the upper boundary of the apron light distribution with the horizontal boundary line HD2, the further reflector 3 of the near-front reflector type generates the underlying portion of the Apron light distribution forms. The two partial light distributions LV2, LV3 overlap. The horizontal boundary line or HD line HD3 forms the HD line of this apron light distribution, but can not be seen in the total light distribution as a light-dark boundary, since it lies within the other partial light distributions.

Die Begriffe wie "oben", "unten", "vertikal", "horizontal" in Zusammenhang mit einem Lichtbild beziehen sich dabei nicht auf das real auf eine vor einem Fahrzeug liegende Fahrbahn projizierte Lichtbild, sondern aus das auf einen vertikalen Schirm in einer definierten Entfernung (z.B. 10 oder 25 Meter) projizierte Lichtbild.The terms "top", "bottom", "vertical", "horizontal" in connection with a photograph do not refer to the real image projected on a roadway ahead of a vehicle, but from a vertical screen in a defined Distance (eg 10 or 25 meters) projected photo.

Weiters ist vorgesehen, dass einerseits die Reflektoren 1, 2, 3 zu ihren LED-Lichtquellen 10, 20, 30 jeweils fix positioniert sind, und andererseits auch die Einzelsystem bestehend jeweils aus Reflektor und zugeordneter Lichtquelle zueinander fix positioniert sind bzw. nur in jeweils genau vorgegebener Position zueinander anbringbar sind. In anderen Worten bedeutet dies, dass es bei einem Lichtmodul eines konkreten Typs keine Einstellmöglichkeiten der Reflektoren zu den Lichtquellen und der Reflektoren zueinander gibt, sodass - innerhalb der jeweiligen Toleranzen - die Anordnungen quasi deckungsgleich sind, innerhalb der jeweiligen Toleranzen. Dadurch lassen sich aufwändige Einstellprozeduren vermeiden und entsprechend die Kosten senken.Furthermore, it is provided that, on the one hand, the reflectors 1, 2, 3 are fixedly positioned with respect to their LED light sources 10, 20, 30, and on the other hand, the individual system consisting respectively of reflector and associated light source are fixedly positioned relative to one another or only in each case exactly predetermined position can be attached to each other. In other words, this means that there are no adjustment possibilities of the reflectors to the light sources and the reflectors to each other in a light module of a specific type, so - within the respective tolerances - the arrangements are quasi congruent, within the respective tolerances. As a result, complicated setting procedures can be avoided and the costs reduced accordingly.

Um trotzdem ein zufriedenstellendes Lichtbild mit einer gesetzeskonformen Hell-Dunkel-Grenze der Gesamtlichtverteilung bei einer ausreichend großen Anzahl an hergestellten Lichtmodulen erzielen zu können, wird wie im Folgenden beschrieben vorgegangen:

  • Grundsätzlich unterliegt jedes System bestehend aus zumindest einem Reflektor 1, 2, 3 eines bestimmten Typs und zugeordneter LED-Lichtquelle 10, 20, 30 einer Toleranz, welche sich aus den Toleranzen des Reflektors, jenen der LED-Lichtquelle sowie den Toleranzen resultierend aus der Positionierung von Reflektor und LED-Lichtquelle zueinander ergeben.
Nevertheless, in order to be able to achieve a satisfactory light image with a legally compliant cut-off of the total light distribution with a sufficiently large number of produced light modules, the procedure is as follows:
  • In principle, any system consisting of at least one reflector 1, 2, 3 of a specific type and associated LED light source 10, 20, 30 is subject to a tolerance resulting from the tolerances of the reflector, that of the LED light source and the tolerances resulting from the positioning of reflector and LED light source to each other.

Diese Toleranz ist grundsätzlich einstellbar und kann, nachdem häufig die LED-Lichtquellen bereits vormontiert auf einer Leiterplatte geliefert werden und auch die Positionen der Reflektoren in Bezug auf die Leiterplatten bereits vorgegeben sind, üblicherweise über die Fertigungsgenauigkeit der Reflektoren noch beeinflusst werden.This tolerance is basically adjustable and, after frequently the LED light sources are already supplied preassembled on a printed circuit board and also the positions of the reflectors are already predetermined with respect to the circuit boards, usually on the manufacturing accuracy of the reflectors are still affected.

Diese Toleranzen haben dabei in der Regel weniger Einfluss auf die eigentliche Form der jeweils erzeugten Teil-Lichtverteilung, sondern vielmehr auf die Lage und auch die Ausgestaltung der Hell-Dunkel-Grenze bzw. der oberen Begrenzung der Teil-Lichtverteilung, bzw. wirken sich die Toleranzen auf die Hell-Dunkel-Grenze besonders stark aus.These tolerances usually have less influence on the actual shape of the partial light distribution generated in each case, but rather on the position and also the design of the light-dark boundary or the upper limit of the partial light distribution, or affect the Tolerances on the cut-off line are particularly strong.

Bei gegebenen Toleranzen liegen daher die horizontale HD-Linien HD1, HD2, HD3 der mit Reflektoren 1, 2, 3 eines bestimmten Typs und zugeordneter LED-Lichtquelle 10, 20, 30 erzeugten Teil-Lichtbilder LV1, LV2, LV3 innerhalb vertikaler Toleranzfelder TF1, TF2, TF3. Solche Toleranzfelder TF1, TF2, TF3 sind in Figur 3 und Figur 4 gezeigt.Given given tolerances, therefore, the horizontal HD lines HD1, HD2, HD3 of the partial light images LV1, LV2, LV3 generated with reflectors 1, 2, 3 of a specific type and associated LED light source 10, 20, 30 are within vertical tolerance fields TF1, TF2, TF3. Such tolerance fields TF1, TF2, TF3 are in FIG. 3 and FIG. 4 shown.

Das Toleranzfeld TF1, TF2, TF3 eines jeden Reflektortyps weist dabei jeweils eine obere Toleranzfeldgrenze TF1', TF2', TF3' und eine untere Toleranzfeldgrenze TF1", TF2", TF3" auf. Wenn dabei im Zusammenhang mit dem Begriff "Toleranz" oder "Toleranzfeld" von einem Reflektoren bzw. Reflektortyp gesprochen wird, so ist damit die Toleranz bzw. das Toleranzfeld des Systems Reflektor - Lichtquelle gemeint. Der Einfachheit halber wird aber zumeist lediglich von Toleranz bzw. Toleranzfeld des Reflektors gesprochen.The tolerance field TF1, TF2, TF3 of each reflector type in each case has an upper tolerance field limit TF1 ', TF2', TF3 'and a lower tolerance field limit TF1 ", TF2", TF3 "If, in connection with the term" tolerance "or" Tolerance "is spoken by a reflector or reflector type, so is so the tolerance or the Tolerance field of the system reflector - light source meant. For the sake of simplicity, however, only tolerance or tolerance field of the reflector is usually discussed.

Diese "Toleranz eines Reflektor-Typs" bzw. dieses "Toleranzfeld eines Reflektor-Typs" ergibt sich daraus, dass Reflektoren eines bestimmten Typs einer Toleranz unterliegen, die zugeordnete zumindest eine LED-Lichtquelle selbst einer Toleranz unterliegt, die Position der zumindest einen LED-Lichtquelle einer Toleranz unterliegt, und auch die Position der Reflektoren toleranzbehaftet ist, wie dies oben schon angesprochen wurde.This "tolerance of a reflector type" or this "tolerance field of a reflector type" results from the fact that reflectors of a certain type are subject to a tolerance, the associated at least one LED light source itself is subject to a tolerance, the position of the at least one LED Light source is subject to a tolerance, and also the position of the reflectors is tolerant, as already mentioned above.

Der Begriff Toleranzfeld bedeutet nun folgendes: wir betrachten beispielsweise das System aus Reflektor 1 und LED-Lichtquelle 10, welches eine Lichtverteilung LV1 mit einer horizontalen Hell-Dunkelgrenze HD1 erzeugt. Dieses System weist eine definierte Lichtquelle 10 auf, die auf einer Trägerplatte an definierter Stelle positioniert ist. Das System weist weiters eine definierte Position für den Reflektor 1 auf.The term tolerance field now means the following: we consider, for example, the system of reflector 1 and LED light source 10, which generates a light distribution LV1 with a horizontal bright-dark boundary HD1. This system has a defined light source 10, which is positioned on a support plate at a defined location. The system further has a defined position for the reflector 1.

Bei einem ersten solchen System wird die Hell-Dunkelgrenze HD1 eine bestimme vertikale Lage einnehmen. Bei einer zweiten, mit baugleichen Bauteilen aufgebauten Lichteinheit wird die Hell-Dunkelgrenze eine andere vertikale Lage aufweisen, usw.In a first such system, the bright-dark boundary HD1 will assume a certain vertical position. In a second, built with identical components light unit, the light-dark boundary will have a different vertical position, etc.

Betrachtet man eine große Anzahl von Lichteinheiten, so wird sich die Lage der Hell-Dunkelgrenze um eine bestimmte Lage häufen, nach oben und unten hin wird sich die Anzahl der Hell-Dunkel-Grenzen verringern.If one looks at a large number of light units, the position of the light-dark boundary will pile up around a certain position; up and down, the number of light-dark boundaries will decrease.

Jener vertikale Bereich, innerhalb dem die erzeugte Hell-Dunkel-Grenze liegen darf, wird als Toleranzfeld TF1 bezeichnet. Lichteinheiten mit einer außerhalb des Toleranzfeldes liegenden HD-Linie können nicht verwendet werden.That vertical area within which the generated light-dark boundary may be located is referred to as tolerance field TF1. Light units with an out-of-tolerance HD line can not be used.

Dieselben Überlegungen gelten analog auch für Reflektor 2 und LED-Lichtquelle 20 sowie Reflektor 3 und LED-Lichtquelle 30.The same considerations apply analogously to reflector 2 and LED light source 20 and reflector 3 and LED light source 30.

Die Häufigkeitsverteilung der Lage der horizontalen HD-Linien HD1, HD2, HD3 innerhalb der Toleranzfelder TF1, TF2, TF3 der unterschiedlichen Reflektortypen 1, 2, 3 folgt dabei wie in Figur 3 und Figur 4 gezeigt einer Verteilungskurve K1, K2, K3, beispielsweise einer Gaußschen Verteilungskurve, wobei die Verteilungskurven K1, K2, K3 jeweils ein Verteilungsmaximum K1m, K2m, K3m aufweisen.The frequency distribution of the position of the horizontal HD lines HD1, HD2, HD3 within the tolerance fields TF1, TF2, TF3 of the different reflector types 1, 2, 3 follows as in FIG. 3 and FIG. 4 shown a distribution curve K1, K2, K3, for example, a Gaussian distribution curve, wherein the distribution curves K1, K2, K3 each have a distribution maximum K1m, K2m, K3m.

Bei einer Ausführungsform wie in Figur 3 gezeigt ist vorgesehen, dass der Reflektor 2 vom Typ HD-Vorfeld-Reflektor sowie der Reflektor 1 vom Typ Asymmetrie-Reflektor derart ausgebildet sind, dass in ihren in Bezug auf die zugeordneten LED-Lichtquellen 10, 20 definierten Positionen die Toleranzfelder TF1, TF2 der Reflektoren 1, 2 vom Typ HD-Vorfeld-Reflektor und vom Typ Asymmetrie-Reflektor einander in vertikaler Richtung nicht überlappen, sodass die Toleranzfeld-Untergrenze TF1" des Asymmetrie-Reflektors 1 oberhalb oder auf gleicher Höhe der Toleranzfeld-Obergrenze TF2' des Reflektors 2 vom Typ HD-Vorfeld-Reflektors liegt.In an embodiment as in FIG. 3 It is provided that the reflector 2 type HD front reflector and the reflector 1 of the asymmetry reflector type are formed such that in their positions defined with respect to the associated LED light sources 10, 20, the tolerance fields TF1, TF2 of Reflectors 1, 2 type HD apron reflector and the type asymmetry reflector do not overlap each other in the vertical direction, so that the tolerance field lower limit TF1 "of the asymmetry reflector 1 above or at the same height of the tolerance field upper limit TF2 'of the reflector. 2 of the type HD apron reflector.

Mit dieser Realisierung kann erreicht werden, dass die horizontale Hell-Dunkel-Grenze der Gesamtlichtverteilung der abgeblendeten Lichtverteilung von dem Reflektor vom Typ Asymmetrie-Reflektor erzeugt wird.With this realization it can be achieved that the horizontal cut-off of the total light distribution of the dimmed light distribution is generated by the reflector of the type asymmetry reflector.

Bei dieser Ausführungsform kann allerdings bei einer nicht unbeträchtlichen Anzahl an Lichtmodulen der Effekt auftreten, dass sich vertikale Hell-Dunkel-Streifen unterhalb der obersten HD-Linie ergeben, was unerwünscht ist.In this embodiment, however, with a not inconsiderable number of light modules, the effect may arise that vertical light-dark stripes result below the uppermost HD line, which is undesirable.

Um dies zu vermeiden, ist bei einer Variante entsprechend Figur 4 vorgesehen, dass der Reflektor 2 vom Typ HD-Vorfeld-Reflektor sowie der Reflektor 1 vom Typ Asymmetrie-Reflektor derart ausgebildet sind, dass in ihren in Bezug auf die zugeordneten LED-Lichtquellen 10, 20 definierten Positionen die Toleranzfelder TF1, TF2 der Reflektoren 1, 2 vom Typ HD-Vorfeld-Reflektor und vom Typ Asymmetrie-Reflektor einander in vertikaler Richtung überlappen, derart dass die Toleranzfeld-Untergrenze TF1" des Asymmetrie-Reflektors 1 unterhalb der Toleranzfeld-Obergrenze TF2' des Reflektors 2 vom Typ HD-Vorfeld-Reflektors liegt und die Toleranzfeld-Obergrenze TF1' des Reflektors 1 vom Typ Asymmetrie-Reflektor 1 oberhalb der Toleranzfeld-Obergrenze TF2' des Reflektor 2 vom Typ HD-Vorfeld-Reflektor liegt.To avoid this, is in a variant accordingly FIG. 4 provided that the reflector 2 type HD apron reflector and the reflector 1 of the asymmetry reflector type are formed such that in their defined with respect to the associated LED light sources 10, 20, the tolerance fields TF1, TF2 of the reflectors. 1 , 2 of the type HD front reflector and the type asymmetry reflector overlap each other in the vertical direction, so that the tolerance field lower limit TF1 "of the asymmetry reflector 1 below the tolerance field upper limit TF2 'of the reflector 2 type HD apron Reflector is located and the tolerance field upper limit TF1 'of the reflector 1 of the type asymmetry reflector 1 above the tolerance field upper limit TF2' of the reflector 2 type HD apron reflector.

Durch dieses "Zusammenrücken" und Überlappen der Toleranzfelder TF1, TF2 nimmt man in Kauf, dass in gewissen Fällen die Hell-Dunkel-Grenze der Gesamtlichtverteilung von einem HD-Vorfeld-Reflektor 2 erzeugt wird, ein solches Lichtbild ist allerdings besser als jenes mit vertikalen Hell-Dunkel-Streifen, und ein solches Lichtmodul kann in der Regel problemlos verwendet werden.By this "collapse" and overlapping of the tolerance fields TF1, TF2, it is accepted that in some cases the cut-off of the total light distribution is generated by an HD front-end reflector 2, but such a light image is better than that with vertical Light-dark stripes, and such a light module can usually be used easily.

Sowohl bei der Ausführungsform nach Figur 3 als auch jener nach Figur 4 ist vorgesehen, dass der Reflektor 3 vom Typ Nah-Vorfeld-Reflektor derart ausgebildet ist, dass in seiner in Bezug auf die ihm zugeordnete zumindest eine LED-Lichtquellen 30 definierten Position die Toleranzfeld-Obergrenze TF3' des Toleranzfeldes TF3 des Reflektors 3 vom Typ Nah-Vorfeld-Reflektor unterhalb der Toleranzfeld-Untergrenze TF1" des Reflektors 1 vom Typ Asymmetrie-Reflektor liegt.Both in the embodiment according to FIG. 3 as well as those after FIG. 4 it is provided that the reflector near-front reflector type 3 is formed such that in its defined with respect to its associated at least one LED light sources 30 position tolerance field upper limit TF3 'of the tolerance field TF3 of the reflector 3 of the type Nah -Field reflector below the tolerance field lower limit TF1 "of the reflector 1 of the asymmetry reflector type.

Auf diese Weise wird zuverlässig vermieden, dass die Hell-Dunkel-Grenze HD3 eines Nah-Vorfeld-Reflektors 3, die in der Regel nicht die geforderte Schärfe, Gradient etc. für eine HD-Linie einer abgeblendeten Lichtverteilung aufweist, zu der HD-Linie der Gesamtlichtverteilung beiträgt.In this way, it is reliably avoided that the bright-dark boundary HD3 of a near-front reflector 3, which usually does not have the required sharpness, gradient etc. for an HD line of a dimmed light distribution, to the HD line the total light distribution contributes.

Weiters wird angemerkt, dass die Formulierung, dass "das Toleranzfeld des zumindest einen Reflektors vom Typ X" nicht bedeutet, dass jeder Reflektor vom Typ X ein eigenes Toleranzfeld hat, sondern dass der Reflektor derart ausgebildet ist, dass seine HD-Linie innerhalb des Toleranzfeldes der Reflektoren vom Typ X liegt.It is further noted that the phrase that "the tolerance field of the at least one X-type reflector" does not mean that each X-type reflector has its own tolerance field but that the reflector is designed so that its HD line is within the tolerance field the type X reflectors is located.

Mit Vorteil ist außerdem vorgesehen, dass der Reflektor 3 vom Typ Nah-Vorfeld-Reflektor derart ausgebildet ist, dass die Toleranzfeld-Obergrenze TF3' des Reflektors 3 vom Typ Nah-Vorfeld-Reflektor unterhalb der Toleranzfeld-Obergrenze TF2' des Reflektors 2 vom Typ HD-Vorfeld-Reflektor und oberhalb der Toleranzfeld-Untergrenze TF2" des Reflektors 2 vom Typ HD-Vorfeld-Reflektor liegt.Advantageously, it is further provided that the reflector near-front reflector type 3 is formed such that the tolerance field upper limit TF3 'of the reflector near-field reflector type 3 below the tolerance field upper limit TF2' of the reflector 2 of the type HD apron reflector and above the tolerance field lower limit TF2 "of the reflector 2 type HD apron reflector is.

Damit wird zusätzlich ein Überlapp der Vorfeld-Lichtverteilungen LV2, LV3 und somit eine homogene Lichtverteilung erreicht.This additionally achieves an overlap of the apron light distributions LV2, LV3 and thus a homogeneous light distribution.

Damit zuverlässig die gewünschte Lage der HD-Linie innerhalb zulässiger Grenzen realisiert werden kann, ist weiters vorteilhafterweise vorgesehen, dass der Reflektor 1 vom Typ Asymmetrie-Reflektor derart ausgebildet ist, dass die - gewünschte bzw. vorgeschriebene - Lage der horizontalen HD-Linie HD der Gesamtlichtverteilung LV innerhalb des Toleranzfeldes TF1 des Reflektor 1 vom Typ Asymmetrie-Reflektor liegt.In order to reliably realize the desired position of the HD line within permissible limits, it is further advantageously provided that the reflector 1 of the asymmetric reflector type is designed in such a way that the position of the horizontal HD line HD of the desired or prescribed position Total light distribution LV is within the tolerance field TF1 of the reflector 1 of the asymmetric reflector type.

Vorzugsweise ist außerdem vorgesehen, dass bei einer Ausgestaltung der Erfindung nach Figur 4 das Toleranzfeld TF1 des Reflektors 1 vom Typ Asymmetrie-Reflektor und das ToleranzfeldPreferably, it is also provided that in an embodiment of the invention according to FIG. 4 the tolerance field TF1 of the reflector 1 of the type asymmetry reflector and the tolerance field

TF2 des Reflektors 2 vom Typ HD-Vorfeld-Reflektor einander in vertikaler Richtung um 0,1° - 0,2° überlappen.TF2 of the reflector 2 of the type HD front-end reflector overlap each other in the vertical direction by 0.1 ° - 0.2 °.

Der Überlappungsbereich zwischen der Toleranzfeld-Obergrenze TF2' der HD-Vorfeld-Lichtverteilung LV2 und der Toleranzfeld-Untergrenze TF1" der Asymmetrie-Lichtverteilung LV1 erstreckt sich also über einen Bereich von 0,1° - 0,2° in vertikaler Richtung.The overlap area between the tolerance field upper limit TF2 'of the HD front-end light distribution LV2 and the tolerance field lower limit TF1 "of the asymmetry light distribution LV1 thus extends over a range of 0.1 ° -0.2 ° in the vertical direction.

Wie Figur 3 und Figur 4 weiters noch zu entnehmen ist, ist vorgesehen, dass, um eine möglichst große Anzahl an Lichtmodulen zu erhalten, deren Lichtbild gesetzeskonform ist, weiters vorgesehen ist, dass in ihren in Bezug auf die zugeordneten LED-Lichtquellen 10, 20 definierten Positionen das Verteilungsmaximum K1m des Toleranzfeldes TF1 des Reflektors 1 vom Typ Asymmetrie-Reflektor oberhalb des Verteilungsmaximums K2m des Toleranzfeldes TF2 des Reflektors 2 vom Typ HD-Vorfeld-Reflektor liegt.As FIG. 3 and FIG. 4 Furthermore, it can be seen, is provided in order to obtain the largest possible number of light modules, the light image is legally compliant, further provided that in their defined with respect to the associated LED light sources 10, 20 positions the distribution maximum K1m of Tolerance field TF1 of the reflector 1 of the type asymmetry reflector above the distribution maximum K2m of the tolerance field TF2 of the reflector 2 type HD apron reflector is.

Weiters ist in diesem Zusammenhang erfindungsgemäß vorgesehen, dass das Verteilungsmaximum K1m des Toleranzfeldes TF1 des Reflektors 1 vom Typ Asymmetrie-Reflektor oberhalb der Toleranzfeld-Obergrenze TF2' des Toleranzfeldes TF2 des Reflektors 2 vom Typ HD-Vorfeld-Reflektor liegt.Furthermore, it is provided in this context according to the invention that the distribution maximum K1m of the tolerance field TF1 of the reflector 1 type asymmetry reflector above the tolerance field upper limit TF2 'of the tolerance field TF2 of the reflector 2 type HD apron reflector.

Schließlich ist noch erfindungsgemäß vorgesehen, dass das Verteilungsmaximum K2m des Toleranzfeldes TF2 des Reflektors 2 vom Typ HD-Vorfeld-Reflektor unterhalb der Toleranzfeld-Untergrenze TF1" des Toleranzfeldes TF1 des Reflektors 1 vom Typ Asymmetrie-Reflektor liegt.Finally, it is provided according to the invention that the distribution maximum K2m of the tolerance field TF2 of the reflector type HD front reflector reflector 2 is below the tolerance field lower limit TF1 "of the tolerance field TF1 of the reflector type asymmetric reflector.

Ausgehend von Figur 4 zeigen die Figuren 5 und 6 noch zwei Extremsituation, die sich bei einem Zusammenbau eines Lichtmoduls ergeben können.Starting from FIG. 4 show the FIGS. 5 and 6 two more extreme situations that can arise when assembling a light module.

Bei einem Lichtmodul entsprechend Figur 5 liegt die von dem Reflektor 1 erzeugte Hell-Dunkel-Grenze HD1 im obersten Bereich des Toleranzfeldes TF1 der Reflektoren vom Typ Asymmetrie-Reflektor. Unabhängig davon, wo innerhalb des Toleranzfeldes TF2 der HD-Vorfeld-Reflektoren konkret die Hell-Dunkel-Grenze HD2 des Reflektors 2 liegt, wird in diesem Fall die horizontale Hell-Dunkel-Linie HD der Abblendlichtverteilung von dem Reflektor 1 erzeugt.Corresponding to a light module FIG. 5 is the light-dark boundary HD1 generated by the reflector 1 in the uppermost region of the tolerance field TF1 of the reflectors of the asymmetry reflector type. Regardless of where within the tolerance field TF2 of the HD front-end reflectors specifically the bright-dark boundary HD2 of the reflector 2, in this case, the horizontal light-dark line HD of the low beam distribution of the reflector 1 is generated.

Weiters liegt in dem gezeigten Beispiel nach Figur 5 die Hell-Dunkel-Grenze HD2 an der untersten Grenze des Toleranzfeldes TF2, während die HD-Linie HD3 des Reflektors 3 an der obersten Grenze des Toleranzfeldes TF3 und somit oberhalb HD-Linie HD2 liegt.Furthermore lies in the example shown FIG. 5 the bright-dark boundary HD2 at the lowest limit of the tolerance field TF2, while the HD line HD3 of the reflector 3 is at the uppermost limit of the tolerance field TF3 and thus above the HD line HD2.

Bei einem Lichtmodul entsprechend Figur 6 liegt die von dem Reflektor 1 erzeugte Hell-Dunkel-Grenze HD1 im untersten Bereich des Toleranzfeldes TF1 der Reflektoren vom Typ Asymmetrie-Reflektor. Weiters liegt die Hell-Dunkel-Grenze HD2, die von dem Reflektor 2 erzeugt wird, hier im obersten Bereich des Toleranzfeldes TF2 der HD-Vorfeld-Reflektoren und somit oberhalb der Hell-Dunkel-Grenze HD1. Somit wird in diesem Beispiel die horizontale Hell-Dunkel-Linie HD der Abblendlichtverteilung von dem Reflektor 2 erzeugt.Corresponding to a light module FIG. 6 is the light-dark boundary HD1 generated by the reflector 1 in the lowermost region of the tolerance field TF1 of the reflectors of the asymmetry reflector type. Furthermore, the bright-dark boundary HD2, which is generated by the reflector 2, here lies in the uppermost region of the tolerance field TF2 of the HD apron reflectors and thus above the cut-off line HD1. Thus, in this example, the horizontal light-dark line HD of the low-beam light distribution is generated by the reflector 2.

Der Asymmetrie-Anteil HD' der Abblendlichtverteilung LV wird in jedem Fall von dem Reflektor 1 erzeugt.The asymmetry component HD 'of the low beam distribution LV is generated by the reflector 1 in each case.

Noch einmal zurückkommend auf die Figuren 7 - 9 zeigen diesen der Reihe nach die prinzipielle Gestalt der Asymmetrie-Lichtverteilung LV1 (Figur 7), der HD-Vorfeld-Lichtverteilung (Figur 8) und der Nah-Vorfeld-Lichtverteilung (Figur 9).Coming back to the FIGS. 7 to 9 show them in sequence the principal shape of the asymmetry light distribution LV1 ( FIG. 7 ), the HD apron light distribution ( FIG. 8 ) and the near-apron light distribution ( FIG. 9 ).

Figur 10 zeigt nun eine Überlagerung der Lichtverteilungen LV1, LV2, LV3 mit den Lagen der Hell-DunkelGrenzen HD1, HD2, HD3 wie in Figur 5 dargestellt. Wie gut zu erkennen ist, wird hier die Hell-Dunkel-Grenze HD der Gesamtlichtverteilung LV von Reflektor 1 gebildet. FIG. 10 now shows a superimposition of the light distributions LV1, LV2, LV3 with the layers of the light-dark boundaries HD1, HD2, HD3 as in FIG. 5 shown. As can be clearly seen, here the bright-dark boundary HD of the total light distribution LV of reflector 1 is formed.

Figur 11 zeigt schließlich noch eine Überlagerung der Lichtverteilungen LV1, LV2, LV3 in Entsprechung zu Figur 6; hier wird die Hell-Dunkel-Grenze HD der Gesamtlichtverteilung LV von Reflektor 2 gebildet. FIG. 11 finally shows a superposition of the light distributions LV1, LV2, LV3 in correspondence to FIG. 6 ; Here, the light-dark boundary HD of the total light distribution LV of reflector 2 is formed.

Abschließend sei noch darauf hingewiesen, dass in den Figuren zur Erzeugung der Lichtverteilungen LV1, LV2, LV3 jeweils genau ein Reflektor verwendet wird. Es ist aber auch möglich, dass für eine, mehrere oder alle Lichtverteilungen zwei, drei oder mehr Reflektoren (jeweils vom gleichen Typ für eine bestimmte Lichtverteilung) verwendet werden. In diesem Fall verfügt jeder Reflektor über zumindest eine ihm zugeordnete Lichtquelle. Alle verwendeten Reflektoren müssen jeweils die oben an Hand des Beispiels von jeweils einem Reflektor pro Teil-Lichtverteilung beschriebenen Bedingungen erfüllen.Finally, it should be noted that in the figures for generating the light distributions LV1, LV2, LV3 exactly one reflector is used in each case. However, it is also possible for two, three or more reflectors (each of the same type for a specific light distribution) to be used for one, several or all light distributions. In this case, each reflector has at least one light source assigned to it. All the reflectors used must each meet the conditions described above with reference to the example of one reflector per sub-light distribution.

Es ist auch möglich, die Vorfeld-Lichtverteilung nur mit einem einzigen Reflektortyp zu erzeugen, wobei hier wieder genau einer oder auch zwei oder mehrere Reflektoren dieses Typs verwendet werden können. Bessere Ergebnisse werden in der Regel allerdings erzielt, wenn die Vorfeld-Lichtverteilung mittels zumindest zweier Reflektoren 2, 3 unterschiedlichen Typs, wie oben beschrieben, erzeugt wird.It is also possible to produce the apron light distribution with only a single type of reflector, whereby again exactly one or even two or more reflectors of this type can be used. However, better results are generally achieved if the apron light distribution is generated by means of at least two reflectors 2, 3 of different types, as described above.

Claims (12)

  1. A light module (100) for a motor vehicle or for a motor vehicle headlight, wherein the light module (100) is configured to generate a dimmed light distribution (LV) which has at least one horizontal LD line (HD) and an LD line (HD') ascending diagonally with respect thereto,
    and wherein the light module (100) comprises at least two reflectors (1, 2, 3), and wherein each reflector (1, 2, 3) is associated with at least one LED light source (10, 20, 30),
    wherein at least one of the reflectors (2) is of the LD front-field reflector type, this type being designed to project light of the at least one LED light source (20) associated therewith as front-field light distribution (LV2) with an LD line (HD2) running substantially horizontally in the light pattern,
    and wherein at least one further reflector (1) is of the asymmetric reflector type, this type being designed to project light of the at least one LED light source (10) associated therewith as an asymmetric light distribution (LV1), wherein the asymmetric light distribution (LV1) has an LD line (HD1) running substantially horizontally and an LD line (HD1') ascending diagonally,
    wherein
    the at least one LED light source (10) associated with the least one reflector (1) of the asymmetric reflector type and the at least one LED light source (20) associated with the at least one reflector (2) of the LD front-field reflector type are arranged in a manner fixed relative to one another,
    all reflectors (1, 2) are arranged in exactly one defined position with respect to the LED light sources (10,20) associated therewith, and
    wherein reflectors (1) of the asymmetric reflector type and reflectors (2) of the LD front-field reflector type are configured in such a way that, with arrangement of at least one reflector (1) of the asymmetric reflector type in the defined position thereof and with arrangement of at least one reflector (2) of the LD front-field reflector type in the defined position thereof, the horizontal LD line of the overall light distribution (LV) is formed by the horizontal LD line (HD1) of the at least one reflector (1) of the asymmetric reflector type and/or by the horizontal LD line (HD2) of the least one reflector (2) of the LD front-field reflector type, wherein each system consisting of reflector (1, 2, 3) of a certain type and associated at least one LED light source (10, 20, 30) is subject to a preferably adjustable tolerance,
    such that horizontal LD lines (HD1, HD2, HD3) in the light patterns (LV1, LV2, LV3) generated by reflectors (1, 2, 3) of the same type and associated at least one LED light source (10, 20, 30) lie within a vertical tolerance field (TF1, TF2, TF3).
    wherein the tolerance field (TF1, TF2, TF3) of each reflector type in each case has an upper tolerance field boundary (TF1', TF2', TF3') and a lower tolerance field boundary (TF1", TF2", TF3"), the at least one reflector (2) of the LD front-field reflector type and also the at least one reflector (1) of the asymmetric reflector type are configured in such a way that, in the defined positions thereof with respect to the associated LED light sources (10, 20), the tolerance fields (TF1, TF2) of the reflectors (1, 2) of the LD front-field reflector type and of the asymmetric reflector type overlap one another in the vertical direction in such a way that the tolerance field lower boundary (TF1") of the at least one asymmetric reflector (1) lies below the tolerance field upper boundary (TF2') of the at least one reflector (2) of the LD front-field reflector type, and the tolerance field upper boundary (TF1') of the at least one reflector (1) of the asymmetric reflector type (1) lies above the tolerance field upper boundary (TF2') of the at least one reflector (2) of the LD front-field reflector type, and the frequency distribution of the position of the horizontal LD lines (HD1, HD2, HD3) within the tolerance fields (TF1, TF2, TF3) of the reflectors (1, 2, 3) follow a distribution curve (K1, K2, K3), for example a Gaussian distribution curve, wherein the distribution curves (K1, K2, K3) each have a distribution maximum (K1m, K2m, K3m),
    characterized in that
    the distribution maximum (K1m) of the tolerance field (TF1) of the at least one reflector (1) of the asymmetric reflector type lies above the tolerance field upper boundary (TF2') of the tolerance field (TF2) of the at least one reflector (2) of the :D front-field reflector type, and/or the distribution maximum (K2m) of the tolerance field (TF2) of the at least one reflector (2) of the LD front-field reflector type lies below the tolerance field lower boundary (TF1") of the tolerance field (TF1) of the at least one reflector (1) of the asymmetric reflector type.
  2. The light module according to Claim 1, characterised in that at least two reflectors (2, 3) are provided for the generation of the front-field light distribution: at least one reflector (2) of the LD front-field reflector type and at least one reflector (3) of the close front-field reflector type.
  3. The light module according to Claim 1 or 2, characterised in that the at least one reflector (3) of the close front-field reflector type is configured in such a way that, in its defined position with respect to the at least one LED light sources (30) associated therewith, the tolerance field upper boundary (TF3') of the tolerance field (TF3) of the at least one reflector (3) of the close front-field reflector type lies below the tolerance field lower boundary (TF1") of the at least one reflector (1) of the asymmetric reflector type.
  4. The light module according to Claim 3, characterised in that the at least one reflector (3) of the close front-field reflector type is configured in such a way that the tolerance field upper boundary (TF3') of the at least one reflector (3) of the close front-field reflector type lies below the tolerance field upper boundary (TF2') of the at least one reflector (2) of the LD front-field reflector type and above the tolerance field lower boundary (TF2") of the at least one reflector (2) of the LD front-field reflector type.
  5. The light module according to one of Claims 1 to 4, characterised in that the at least one reflector (1) of the asymmetric reflector type is configured in such a way that the horizontal LD line (HD) of the overall light distribution (LV) lies within the tolerance field (TF1) of the at least one reflector (1) of the asymmetric reflector type.
  6. The light module according to one of Claims 1 to 5, characterised in that the tolerance fields (TF1) of the at least one reflector of the asymmetric reflector type and the tolerance field (TF2) of the at least one reflector (2) of the LD front-field reflector type overlap one another in the vertical direction by 0.1° - 0.2°.
  7. The light module according to one of Claims 1 to 6, characterised in that each LED light source (10, 20, 30) comprises at least one light-emitting diode (LED).
  8. The light module according to one of Claims 1 to 7, characterised in that the LED light sources (10, 20) associated with the at least one reflector (1) of the asymmetric reflector type and associated with the at least one reflector (2) of the LD front-field reflector type are preferably arranged on a common carrier plate, preferably a common LED circuit board.
  9. The light module according to Claim 8, characterised in that the at least one LED light source (30) associated with the at least one reflector (3) of the close front-field reflector type is likewise positioned on the common carrier plate, preferably on the common LED circuit board.
  10. The light module according to one of Claims 1 to 9, characterised in that securing means and/or positioning means are provided, by means of which reflectors of the same type can be positioned and secured on different carrier plates in the same position with respect to the LED light sources of the carrier plate.
  11. The light module according to one of Claims 1 to 10, characterised in that the distribution maximum (K1m) of the tolerance field (TF1) of the at least one reflector (1) of the asymmetric reflector type lies, in its defined positions with respect to the associated LED light sources (10, 20), above the distribution maximum (K2m) of the tolerance field (TF2) of the at least one reflector (2) of the LD front-field reflector type.
  12. A vehicle headlight comprising at least one light module according to one of Claims 1 to 11.
EP13795411.1A 2012-12-13 2013-10-22 Light module for a vehicle headlamp Active EP2931556B1 (en)

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ATA50585/2012A AT513129B1 (en) 2012-12-13 2012-12-13 Light module for a vehicle headlight
PCT/AT2013/050204 WO2014089585A1 (en) 2012-12-13 2013-10-22 Light module for a vehicle headlamp

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JP5714346B2 (en) * 2011-01-27 2015-05-07 株式会社小糸製作所 Vehicle headlamp
JP6001238B2 (en) * 2011-02-14 2016-10-05 株式会社小糸製作所 Light distribution control device for vehicle headlamp
JP5752982B2 (en) * 2011-04-15 2015-07-22 株式会社小糸製作所 Lighting fixtures for vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11435047B2 (en) 2018-05-24 2022-09-06 HELLA GmbH & Co. KGaA Front light module

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US20150354773A1 (en) 2015-12-10
AT513129A4 (en) 2014-02-15
BR112015012405A2 (en) 2017-07-11
JP2016503941A (en) 2016-02-08
CN105246739A (en) 2016-01-13
MX342169B (en) 2016-09-15
MX2015007592A (en) 2015-10-22
CN105246739B (en) 2017-05-17
AT513129B1 (en) 2014-02-15
EP2931556A1 (en) 2015-10-21
JP6088066B2 (en) 2017-03-01
US9611998B2 (en) 2017-04-04
WO2014089585A1 (en) 2014-06-19

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