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    • 专利摘要:
    The invention relates to a light module (100) for a motor vehicle headlight, wherein the light module (100) is designed to produce a dimmed light distribution (LV) comprising at least one horizontal HD line (HD) and an HD line inclined thereto (FIG. HD '), 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). At least one of the reflectors (2) is of the type HD apron reflector, and at least one further reflector (1) is of the asymmetric reflector type. The at least one LED light source (10) associated with the at 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 HD front-mounted reflector type are fixed to each other arranged, and all reflectors (1, 2) can be arranged in relation to their associated LED light sources (10, 20) in exactly one defined position. Reflectors (1) of the type asymmetry reflector and reflectors (2) of the type HD apron reflector are designed such that in the arrangement of at least one reflector (1) of the asymmetric reflector type in its defined position and at least one reflector (2 ) of the type HD apron reflector in its defined position, the horizontal HD line of the total light distribution (LV) of the horizontal HD line (HD1) of at least one reflector (1) of the type asymmetry reflector and / or from the horizontal HD Line (HD2) of the at least one reflector (2) of the type HD front-end reflector is formed.
    公开号:AT513129A4
    申请号:T50585/2012
    申请日:2012-12-13
    公开日:2014-02-15
    发明作者:Friedrich Bauer；Peter Illmayr
    申请人:Zizala Lichtsysteme Gmbh；
    IPC主号:
    专利说明:

    PI2618
    Light module for a vehicle headlight
    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.
    Furthermore, the invention relates to a vehicle headlamp with at least one above-mentioned light module.
    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 dimensional accuracy 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 HeU-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).
    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 -1-
    P12618 positions the light-dark transitions of the individual light distribution to one another in such a way that a law-compliant overall light distribution results.
    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.
    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.
    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.
    This object is achieved with a light module mentioned above in that according to the invention the at least one reflector of the type asymmetry reflector associated 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, and wherein reflectors of the asymmetric reflector type and reflectors of the type HD front-mounted reflector are designed such that in the arrangement of at least one reflector The type of 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 of the horizontal HD line of at least one reflector of the asymmetric reflector type and / or of the horizontal HD line of the at least one reflector s type HD apron reflector is formed.
    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 which the reflectors are fixed. As a result, complicated setting procedures can be avoided and the costs reduced accordingly.
    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.
    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.
    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.
    The terms like "top", "bottom", "vertical", "horizontal" in the context of a light image, this does not refer to the light projected on a road surface ahead of a vehicle, but to the light projected onto a vertical screen at a defined distance (for example 10 or 25 meters).
    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 PI 2618 lie within a vertical tolerance field, the tolerance field of each reflector type having an upper tolerance field limit and a lower tolerance field limit, respectively.
    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.
    This "tolerance of 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 subject to tolerances.
    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 support plate or the light unit has a defined position for the reflector on.
    In a first such light unit, the light-dark boundary will assume a certain vertical position. For 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).
    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.
    The vertical range within which the generated cut-off is defined as the tolerance field. The " height " the tolerance field, so the vertical extent, can be adjusted primarily on the accuracy of the production of the reflectors. 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 fulfill these conditions, which therefore produce a light-dark boundary lying outside the tolerance field, are not used in series production.
    In 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 associated with these types of reflectors Toleranzfeldem
    In a first embodiment of the invention, it is provided that the at least one reflector of the type H D front reflector and the at least one reflector of the asymmetric reflector type are designed such that in their positions defined with respect to the associated LED light sources Tolerance fields reflectors of the type HD apron reflector and the type asymmetry reflector do not overlap each other in the vertical direction, so that the tolerance field sub-limit of at least one asymmetry reflector above or at the same height of the tolerance field upper limit of the at least one reflector of the type HD apron reflector is located.
    With this realization it can be achieved that-as is fundamentally desirable-the horizontal cut-off of the overall pitch distribution of the dimmed light distribution is generated by at least one reflector of the asymmetric reflector type.
    In the above embodiment, however, with a not inconsiderable number of light modules, there may be the effect of giving rise to vertical light-dark stripes below the uppermost HD line, which is desirable.
    To avoid this, it is provided in another variant, 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 defined in their with respect to the associated LED light sources Positions the tolerance fields of the reflectors of the type HD front reflector and of the asymmetric reflector type overlap each other in the vertical direction, such that the tolerance field lower limit of the at least one asymmetry reflector is below the tolerance field upper limit of the at least one reflector of the type -5- PI2618 HD front reflector and the tolerance field upper limit of at least one reflector of the asymmetric reflector type is above the tolerance field upper limit of the at least one reflector of the type HD apron reflector
    By this "squeezing" and overlapping the tolerance fields, it is tolerated that in some cases the bright-dark boundary of the total light distribution is generated by an HD front-end reflector, but such a light image is better than that with vertical light-dark stripes, and such Light module can usually be used easily.
    Furthermore, it is advantageously provided that the at least one reflector of the near-front reflector type is designed such that the tolerance field upper limit of the tolerance field of the at least one near-field reflector is defined in its position defined with respect to the at least one LED light source assigned to it. Apron reflector below the tolerance field lower limit of the at least one reflector of the type asymmetry reflector hegt.
    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
    It is further noted that the wording that "the tolerance field of the at least one X " does not mean that each reflector type X has its own tolerance field, but that the reflector is designed such that its HD line within the tolerance field of the type X reflectors.
    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.
    Thus, an overlap of the apron light distributions and thus a homogeneous light distribution is additionally achieved. -6- PI 2618
    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.
    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 °.
    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.
    In a concrete Ausführungsfbrm is provided that each LED light source comprises at least one light emitting diode.
    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.
    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.
    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.
    It is typically provided that the frequency distribution of the horizontal HD line locations within the tolerance fields of the reflectors of a distribution curve, for example -7-PI2618, follow a Gaussian distribution curve, the distribution curves each having a distribution maximum.
    In order to obtain the largest possible number of light modules, the light image is lawful, 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.
    Furthermore, it is provided in this connection that the distribution maximum of the tolerance field of the at least one reflector of the asymmetric reflector type lies above the tolerance field upper limit of the tolerance field of the at least one reflector of the type HD apron reflector.
    Finally, it is provided 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.
    In the following the invention is discussed in more detail with reference to the drawing. In this shows
    1 shows a low beam distribution generated with three different reflectors,
    FIG. 2 shows the low-beam distribution from FIG. 1, broken down into its three partial light distributions,
    3 shows a first position according to the invention of the tolerance fields of the three reflectors,
    4 shows a further inventive position of the tolerance fields of the three reflectors,
    5 shows a first exemplary position of the light-dark boundaries in a position of the tolerance fields as shown in FIG. 4, FIG.
    6 shows a further exemplary position of the light-dark boundaries in the case of a position of the tolerance fields as shown in FIG. 4, PI2618
    7 shows an asymmetry light distribution,
    8 shows an HD apron light distribution,
    9 shows a near-apron light distribution,
    10 shows a superimposition of the light distributions from FIGS. 7-9, and
    11 shows a further possible superimposition of the light distributions from FIGS. 7-9.
    FIG. 1 shows a light module 100 for a motor vehicle or for a motor vehicle headlight, wherein the light module 100 is designed to generate a low beam distribution LV, as shown schematically in FIG. 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 the embodiment shown, the light module 100 comprises three reflectors 1, 2, 3, wherein an LED light source 10, 20, 30 is assigned to each reflector 1, 2, 3. Each LED light source 10, 20, 30 comprises 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 partial light distribution into a region 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 shown once again in FIG. 2 and in detail in FIG. -9- P12618
    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 apron light distribution LV2 is shown in Figure 2 and in detail again in Figure 8 represents.
    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 a Nahvorfeldlichtverteilung LV3 is shown in Figure 2 and in detail again in FiguT 9 represents.
    Thus, two reflectors 2, 3 are provided for generating the apron light distribution, the reflector 2 type HD apron reflector producing the upper part of the apron light distribution LV 2 with the upper boundary of the apron light distribution with the horizontal boundary line HD 2 another reflector 3 of the near-front reflector type generates the lower part of the front-end light distribution. 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.
    The terms like "top", "bottom", "vertical", "horizontal" in connection with a photograph, this does not relate to the real image projected onto a roadway in front of a vehicle, but rather to the photograph projected onto a vertical screen at a defined distance (for example, 10 or 25 meters).
    Furthermore, it is provided that, on the one hand, the reflectors 1, 2, 3 to their LED light sources 10, 20, 30 are each fixedly positioned, and, on the other hand, the individual systems consisting of reflector and associated light source are fixedly positioned relative to one another or only in each case exactly In other words, P12618 means that with a light module of a specific type there are no adjustment possibilities of the reflectors to the light sources and the reflectors to each other, so that - 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.
    In order nevertheless to be able to achieve a satisfactory light image with a law-conforming cut-off of the total light distribution with a sufficiently large number of produced light modules, the procedure according to the invention is described with reference to a preferred embodiment of the invention as described below:
    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.
    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.
    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.
    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 shown in FIG. 3 and FIG.
    The tolerance field TF1, TF2, TF3 of each reflector type respectively has an upper tolerance field limit TF1 ', TF2', TF3 'and a lower tolerance field limit TFl ", TF2", TF3 ". on. When doing so in the context of the term "tolerance " or "tolerance field " is spoken by a reflector or reflector type, so is the tolerance or the PI 2618th
    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 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 tolerance, and also the position of the reflectors is tolerant, as already stated above was addressed.
    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.
    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.
    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.
    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 same considerations apply analogously to reflector 2 and LED light source 20 and reflector 3 and LED light source 30.
    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 shown in FIG. 3 and FIG. 4, a distribution curve K1, K2, K3, for example one Gaussian distribution curve, wherein the distribution curves Kl, K2, K3 each have a distribution maximum Klm, K2m, K3m. -12- PI2618
    In a first embodiment of the invention, as shown in FIG. 3, it is provided that the reflector 2 of the type HD front-end reflector and the reflector 1 of the asymmetrical reflector type are designed in such a way that their relative to the associated LED light sources 10 20, the tolerance fields TF1, TF2 of the HD front reflector type reflectors 1, and the asymmetrical reflector type reflectors 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 type HD apron reflector.
    With this realization it can be achieved that-as is fundamentally desirable-the horizontal cut-off of the total light distribution of the dimmed light distribution is generated by the reflector of the type asymmetry reflector.
    In this embodiment, however, with a not inconsiderable number of light modules, the effect may occur that vertical HeU-dark stripes result below the uppermost HD line, which is undesirable.
    To avoid this, it is provided in another variant according to Figure 4, that the reflector 2 type HD-front reflector and the reflector 1 of the type asymmetry reflector are designed such that in their respect to the associated LED light sources 10, 20, the tolerance fields TF1, TF2 of the HD front reflector type reflectors and the asymmetric reflector type reflectors overlap each other in the vertical direction such that the tolerance field lower limit TF1 " of the asymmetry reflector 1 lies below the tolerance field upper limit TF2 'of the reflector 2 type HD front reflector, and the tolerance field upper limit TFT of the reflector 1 type asymmetric reflector 1 above the tolerance field upper limit TF2' of the reflector 2 of the type HD apron reflector is located.
    By this "squeezing" and overlapping the tolerance fields TF1, TF2, it is accepted that in some cases the bright-dark boundary 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. P12618
    Both in the embodiment according to FIG. 3 and in that according to FIG. 4, it is provided that the reflector 3 of the near-front reflector type is designed in such a way that the tolerance field is defined in its position defined with respect to the at least one LED light sources 30 assigned to it Upper limit TF3 'of the tolerance field TF3 of the near-front reflector type reflector 3 below the tolerance field lower limit TF1 " of the reflector 1 of the asymmetry reflector type.
    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.
    It is further noted that the phrase that "the tolerance field of the at least one X " does not mean that each reflector type X has its own tolerance field, but that the reflector is designed such that its HD line is within the tolerance field of the type X reflectors.
    Advantageously, it is further provided that the reflector near-front reflector type 3 is formed such that the tolerance field upper limit TF3J of the reflector near-field reflector 3 below the tolerance field upper limit TF2 'of the reflector 2 type HD -Field reflector and above the tolerance field sub-boundary TF2 " of the reflector 2 type HD apron reflector is located.
    This additionally achieves an overlap of the apron light distributions LV2, LV3 and thus a homogeneous light distribution.
    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 such that the desired or prescribed position of the horizontal HD line HD of FIG Total light distribution LV is within the tolerance field TF1 of the reflector 1 of the asymmetric reflector type.
    Preferably, it is also provided that in an embodiment of the invention according to FIG. 4, the tolerance field TF1 of the asymmetric reflector type reflector 1 and the tolerance field -14- P12618 TF2 of the HD front reflector type reflector 2 are mutually displaced in the vertical direction by 0, Overlap 1 ° -0,2 °.
    The overlap area between the tolerance field upper limit TF2 'of the HD VoTfeld light distribution LV2 and the tolerance field lower limit TF1 " The asymmetry light distribution LV1 thus extends over a range of 0.1 ° - 0.2 ° in the vertical direction.
    As can still be seen from FIG. 3 and FIG. 4, it is provided with preference that, in order to obtain the largest possible number of light modules, whose light image conforms to the law, it is further provided that in their with respect to the associated LED light sources 10, 20 defined positions the distribution maximum Klm of the tolerance field TF1 of the reflector 1 type of asymmetry reflector above the distribution maximum K2m the tolerance field TF2 of the reflector 2 type HD apron reflector is.
    Furthermore, it is provided in this context that the distribution maximum Klm 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
    Finally, it is provided 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 TFT 'of the tolerance field TF1 of the reflector asymmetric type reflector 1.
    Starting from FIG. 4, FIGS. 5 and 6 show two additional extreme situations that may arise when assembling a light module according to the invention.
    In the case of a light module according to FIG. 5, the light-dark boundary HD1 generated by the reflector 1 lies 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.
    Further, in the example shown in FIG. 5, the light-dark boundary HD2 lies at the lowest limit of the tolerance field TF2, while the HD line HD3 of the reflector 3 lies at the uppermost limit of the tolerance field TF3 and thus above the HD line HD2. -15- P12618
    In the case of a light module according to FIG. 6, the light-dark boundary HD1 generated by the reflector 1 lies in the lowermost region of the tolerance field TF1 of the reflectors of the asymmetric 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.
    Returning again to FIGS. 7-9, these show in turn the principal shape of the asymmetry light distribution LV1 (FIG. 7), the HD front-end light distribution (FIG. 8), and the near-front light distribution (FIG. 9).
    FIG. 10 shows in mm a superimposition of the light distributions LV1, LV2, LV3 with the positions of the bright-dark boundaries HD1, HD2, HD3 as shown in FIG. As can be clearly seen, here the bright-dark boundary HD of the total light distribution LV of reflector 1 is formed.
    Finally, FIG. 11 shows a superposition of the light distributions LV1, LV2, LV3 in correspondence with FIG. 6; Here, the light-dark boundary HD of the total light distribution LV of reflector 2 is formed.
    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.
    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% 3 of different types, as described above. -16-
    权利要求:
    Claims (18)
    [1]
    PI 2618 PATENT CLAIMS 1. A light module (100) for a motor vehicle or for a motor vehicle headlamp, wherein the light module (100) for generating a dimmed light distribution (LV) is formed, which at least one horizontal HD line (HD) and a obliquely rising HD line (HD '), and wherein the light module (100) comprises at least two reflectors (1,2,3), and wherein each reflector (1,2,3) at least one LED light source (10,20 , 30), wherein at least one of the reflectors (2) is of the type HD apron reflector, which type is adapted to light its associated at least one LED light source (20) as apron light distribution (LV2) with one in the light image imaging substantially horizontally extending HD line (HD2), and wherein at least one further reflector (1) is of the asymmetric reflector type, which type is adapted to light the associated at least one LED light source (10) as an asymmetry light distribution ( LV1), wherein the asymmetry light distribution (LV1) has a substantially horizontally extending HD line (HD1) and an obliquely rising HD line (HD1 '), characterized in that the at least one reflector (1) of the type At least one LED light source (10) assigned to the asymmetry reflector and the at least one LED light source (20) assigned to the at least one reflector (2) of the type HD front-end reflector are arranged fixedly to one another, all the reflectors (1, 2) in FIG With respect to their associated LED light sources (10,20) can be arranged in exactly one defined position, and wherein reflectors (1) of the asymmetry reflector type and reflectors (2) of the type HD front-end reflector are designed such that at Arrangement of at least one reflector (1) of the type asymmetry reflector in its defined position and at least one reflector (2) of the type HD apron reflector in its defined position, the horizontal HD- 17- P12618 line of Gesamtli distribution (LV) of the horizontal HD line (HD1) of the at least one reflector (1) of the asymmetric reflector type and / or of the horizontal HD line (HD2) of the at least one HD front-end reflector (2). Reflector is formed.
    [2]
    2. Light module according to claim 1, characterized in that for generating the apron light distribution at least two reflectors (2, 3) are provided, at least one reflector (2) of the type HD apron reflector (2) and at least one reflector (3 ) of the near-field reflector type.
    [3]
    3. Light module according to claim 1 or 2, characterized in that 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, so that horizontal HD lines (HD1, HD2, HD3) in the light images (LV1, LV2, LV3) generated by reflectors (1,2,3) of the same type and associated at least one LED light source (10, 20, 30) within a vertical tolerance field (TF1, TF2, TF3), with the tolerance field (TF1, TF2, TF3) of each reflector type each having an upper tolerance field limit (TF1 ", TF2 ", TF3 &min;) and a lower tolerance field limit (TF1 ", TF2 ", TF3 " ) having.
    [4]
    4. Light module according to claim 3, characterized in that the at least one reflector (2) of the type HD front-end reflector and the at least one reflector (1) of the asymmetric reflector type are formed such that in their relative to the associated LED light sources (10, 20) defined positions, the tolerance fields (TF1, TF2) of the reflectors (1, 2) type HD front 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 at least one asymmetry reflector (1) lies above or at the same level as the tolerance field upper limit (TF2 ') of the at least one reflector (2) type HD front-end reflector.
    [5]
    5. Light module according to claim 3, characterized in that the at least one reflector (2) of the type HD apron reflector and the at least one reflector (1) of the asymmetric reflector type are designed such that in their respect to the associated LED light sources (10, 20) defined positions overlap the tolerance fields (TF1, TF2) of the reflectors (1, 2) type HD front reflector and the asymmetric reflector type each other in -18- P12618 vertical direction, such that the Tolerance field lower limit (TFl ") of the at least one asymmetry reflector (1) below the tolerance field upper limit (TF2 ') of the at least one reflector (2) type HD apron reflector and the tolerance field upper limit (TF1') of the at least one reflector (1) of the asymmetric reflector type (1) lies above the tolerance field upper limit (TF2 ') of the at least one reflector (2) of the type HD apron reflector.
    [6]
    6. Light module according to claim 5, characterized in that the at least one reflector (3) of the near-front reflector type is designed such that in its with respect to its associated at least one LED light sources (30) defined position the tolerance field Upper limit (TF3 ') of the tolerance field (TF3) of the at least one reflector (3) of the near-front reflector type lies below the tolerance field lower limit (TFl ") of the at least one asymmetric reflector type reflector (1).
    [7]
    7. Light module according to claim 6, characterized in that the at least one reflector (3) of the near-front reflector type is designed in such a way that the tolerance field upper limit (TF3 ') of the at least one reflector (3) of the near-apron type. Reflector below the tolerance field upper limit (TF2 ') of the at least one reflector (2) of the type HD apron reflector and above the tolerance field lower limit (TF2 ") of the at least one reflector (2) of the type HD apron reflector.
    [8]
    8. Light module according to one of claims 3 to 7, characterized in that the at least one reflector (1) of the type asymmetry reflector is formed such that the horizontal HD line (HD) of the total light distribution (LV) within the tolerance field (TFl ) of the at least one reflector (1) of the asymmetric reflector type.
    [9]
    9. Light module according to one of claims 5 to 8, characterized in that the tolerance fields (TFl) 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 type HD apron reflector each other overlap in the vertical direction by 0.1 ° - 0.2 °.
    [10]
    10. Light module according to one of claims 1 to 9, characterized in that each LED light source (10,20,30) each comprise at least one light emitting diode (LED) -19- PI2618
    [11]
    11. Light module according to one of claims 1 to 10, characterized in that the at least one reflector (1) of the type asymmetry reflector and the at least one reflector (2) of the type HD front-end reflector associated LED light sources (10 , 20) are arranged on a common carrier plate, preferably a common LED board.
    [12]
    12. Light module according to claim 11, characterized in that the at least one reflector (3) of the near-front reflector type associated with at least one LED light source (30) is also positioned on the common support plate, preferably on the common LED board
    [13]
    13. Light module according to one of claims 1 to 12, characterized in 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.
    [14]
    14. Light module according to one of claims 3 to 13, characterized in that the frequency distribution of the position of the horizontal HD lines (HD1, HD2, HD3) within the tolerance fields (TF1, TF2, TF3) of the reflectors (1, 2, 3) a distribution curve (Kl, K2, K3), for example, a Gaussian distribution curve, follow, wherein the distribution curves (Kl, K2, K3) each have a distribution maximum (Klm, K2m, K3m).
    [15]
    15. Light module according to claim 14, characterized in that in their with respect to the associated LED light sources (10, 20) defined positions, the distribution maximum (Klm) of the tolerance field (TF1) of the at least one reflector (1) of the type asymmetry reflector above the distribution maximum (K2m) of the tolerance field (TF2) of the at least one reflector (2) of the type HD apron reflector.
    [16]
    16. Light module according to claim 14 or 15, characterized in that the distribution maximum (Klm) of the tolerance field (TF1) of the at least one reflector (1) of the type asymmetry reflector above the tolerance field upper limit (TF2 ") of the tolerance field (TF2) of at least one reflector (2) of the type HD apron reflector is located.
    [17]
    17. Light module according to one of claims 14 to 16, characterized in that the distribution maximum (K2m) of the tolerance field (TF2) of the at least one reflector (2) of the -20-



    PI 2618 type HD apron reflector below the tolerance field sub-limit (TF1 ") of the tolerance field (TF1) of at least one reflector (1) of the asymmetry reflector type.
    [18]
    18. Fahrzeugscheinwerter with at least one light module according to one of claims 1 to 17. -21-
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    CN105246739A|2016-01-13|
    CN105246739B|2017-05-17|
    MX342169B|2016-09-15|
    BR112015012405A2|2017-07-11|
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    AT513129B1|2014-02-15|
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    EP2931556B1|2016-11-30|
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    JP5752982B2|2011-04-15|2015-07-22|株式会社小糸製作所|Lighting fixtures for vehicles|FR3044386A1|2015-11-27|2017-06-02|Valeo Vision Belgique|MULTI-SOURCE FOG PROJECTOR|
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    法律状态:
    2016-11-15| HC| Change of the firm name or firm address|Owner name: ZKW GROUP GMBH, AT Effective date: 20161014 |
    2018-08-15| MM01| Lapse because of not paying annual fees|Effective date: 20171213 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50585/2012A|AT513129B1|2012-12-13|2012-12-13|Light module for a vehicle headlight|ATA50585/2012A| AT513129B1|2012-12-13|2012-12-13|Light module for a vehicle headlight|
    EP13795411.1A| EP2931556B1|2012-12-13|2013-10-22|Light module for a vehicle headlamp|
    BR112015012405A| BR112015012405A2|2012-12-13|2013-10-22|light module for a vehicle headlight|
    PCT/AT2013/050204| WO2014089585A1|2012-12-13|2013-10-22|Light module for a vehicle headlamp|
    US14/651,301| US9611998B2|2012-12-13|2013-10-22|Light module for a vehicle headlamp|
    CN201380065696.XA| CN105246739B|2012-12-13|2013-10-22|Light module for a vehicle headlamp|
    JP2015546767A| JP6088066B2|2012-12-13|2013-10-22|Light module for vehicle headlight|
    MX2015007592A| MX342169B|2012-12-13|2013-10-22|Light module for a vehicle headlamp.|
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