• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A vehicle headlamp (1) comprising a light source (2), a primary optic (3), a projection optics (4), a control device (5), an output unit, and an optoelectronic component (7) comprising a controllable arrangement of a plurality of individually adjustable optoelectronic elements (8) in the form of a two-dimensional matrix. The vehicle headlamp (1) is configured to emit light from the light source (2) in the direction of the optoelectronic component (7) and to modulate it by means of the optoelectronic component (7) and to radiate it at least partially in the direction of the projection optics (4) and before Vehicle to form a photograph. The control device (5) is connected to the output unit (5). The output unit (6) is connected to the optoelectronic component (7) and can drive the optoelectronic elements (8), wherein in the control device (5) a light model (20) in the form of a plurality of support points (9) is stored, and the Control device (5) is arranged to form from the light model (20) image data (21) in the form of a two-dimensional, matrix-shaped situation light distribution with a situation image resolution. The situation image resolution is much higher than the plurality of support points (9) of the light model (20). The image data (21) are preferably formed by interpolation from the support points (9) and can be imaged on the optoelectronic component (7) by means of the output unit (6).
    公开号:AT518725A1
    申请号:T50532/2016
    申请日:2016-06-13
    公开日:2017-12-15
    发明作者:Lahmer Martin
    申请人:Zkw Group Gmbh；
    IPC主号:
    专利说明:

    vehicle headlights
    The invention relates to a vehicle headlamp comprising at least one light source, at least one projection optics, at least one control device, at least one output unit and at least one optoelectronic component comprising a controllable arrangement of a plurality of individually adjustable optoelectronic elements in the form of a two-dimensional matrix, wherein an image resolution by the product is defined from the number of rows and columns of the matrix, and the vehicle headlight is adapted to emit light from the at least one light source in the direction of the at least one optoelectronic component and to modulate by means of the at least one optoelectronic component and at least partially in the direction of at least one projection optics to radiate and form a light image in front of the vehicle, wherein the at least one control device is connected to the at least one output unit, and the at least one output unit with the at least one optoelectronic component is connected and can drive the optoelectronic elements.
    Furthermore, the invention relates to a method for generating a light distribution in front of a vehicle by a vehicle headlight of the aforementioned type.
    In the development of the current headlamp systems is increasingly the desire in the foreground to project a high-resolution as possible on the road surface, which can be quickly changed and adapted to the respective traffic, road and lighting conditions. The term "carriageway" is used here for a simplified representation, because of course it depends on the local conditions, whether a photo is actually on the roadway or even extends beyond.In principle, the photograph is based on a projection on a vertical surface according to the relevant standards relating to automotive lighting technology.
    In order to meet this stated need, among other things, headlamps have been developed in which a variably controllable reflector surface is formed from a plurality of micromirrors and reflects a light emission generated by a light source in the emission direction of the headlamp. Such lighting devices are in
    Vehicle construction advantageous because of their very flexible light functions, since the illumination intensity can be controlled individually for different light areas and any light functions can be realized with different light distributions, such as a low beam light distribution, a cornering light distribution, a city light distribution, a motorway light distribution, a bend light distribution, a high beam light distribution or the image of glare-free high beam. For the micromirror arrangement, the so-called Digital Light Processing (DLP®) projection technology is used, in which images are generated by modulating a digital image onto a light beam. In this case, the light beam is divided into partial areas by a rectangular arrangement of movable micromirrors, also referred to as pixels, and then reflected pixelwise, either into the projection path or out of the projection path.
    The basis for this technique is an electronic component that contains the rectangular array in the form of a matrix of mirrors and their driving technique and is referred to as "Digital Micromirror Device" (DMD).
    A DMD microsystem is a spatial light modulator (SLM) which consists of matrix-shaped micro-mirror actuators, that is to say tiltable reflecting surfaces, for example with an edge length of approximately 16 gm. The mirror surfaces are designed in such a way that they pass through the action of electrostatic fields are mobile. Each micromirror is individually adjustable in angle and usually has two stable end states, which can be changed within a second up to 5000 times. For example, the individual micromirrors can each be controlled by a pulse width modulation (PWM) in order to image further states of the micromirrors in the main beam direction of the DMD arrangement whose time-averaged reflectivity lies between the two stable states of the DMD. The number of mirrors corresponds to the resolution of the projected image, where a mirror can represent one or more pixels. Meanwhile, DMD chips with high resolutions in the megapixel range are available. The underlying technology for adjustable mirrors is Micro-Electro-Mechanical Systems (MEMS) technology. While the DMD technology has two stable mirror states, and by modulating between both stable states, the reflection factor can be set, the "Analog Micromirror Device" (AMD) technology has the property that the individual mirrors can be set in variable mirror positions. which are each in a stable state
    In such vehicle headlights, which can project several different high-resolution light distributions on the road ahead of the vehicle, there is a significant need for storage. Micromirror array controllers are often implemented as "embedded systems." Often, such embedded systems are specifically tailored to a task, and for cost reasons, an optimized, mixed hardware-software implementation is chosen, so in practice, computing power and available memory are often limited. It is often unfavorable to use an additional external memory, since not only the memory itself causes costs, but also the complexity of the "embedded system" is significantly increased, or in the certification required for automotive applications is not available on the market.
    It is an object of the invention to overcome the disadvantages mentioned.
    The object is achieved by a headlamp of the type mentioned in that according to the invention in at least one control device at least one light model is stored in the form of a plurality of nodes, and the at least one control device is arranged from the at least one light model image data in the form a two-dimensional, matrix-like situation light distribution with a situation image resolution, which is defined by the product of the number of rows and columns of the situation light distribution to form, the situation image resolution is much higher, preferably at least a hundred times, more preferably at least ten thousand times as high as the plurality of support points of the light model and the image data are preferably formed by interpolation from the interpolation points and the image data can be imaged on the at least one optoelectronic component by means of the at least one output unit.
    By using a light model in the form of a plurality of support points, the required storage space for storing one or more light distributions can be significantly reduced. Light distributions can have simple gradients of brightness, which can be described very simply by means of two-dimensionally curved surfaces. These surfaces, in turn, can be described by a multiplicity of interpolation points, the number of which and consequently the storage requirements thereof is significantly lower than that of the light distribution which is described by way of image data in high resolution. This results in a drastically reduced memory requirement, which can be served, for example, by a conventional "embedded system" as a control device It is clear that the required memory can be located both on a microprocessor chip and on a separate memory chip.
    The interpolation points can be defined for example in the form of a two-dimensional matrix. If the number of interpolation points is selected to be at least a factor of ten in each case with respect to the rows and columns of the matrix less than the number of rows and columns of the situation light distribution, the required memory requirement is reduced by at least a factor of one hundred. If the number of nodes is chosen to be at least a factor of one hundred lower than the number of rows and columns of the situation light distribution, the result is a reduction of the required memory requirement, at least by a factor of ten thousand.
    Furthermore, the object is achieved by a method of the type mentioned above, that according to the invention, a pig launcher as described above generates a light distribution of the type mentioned. The advantages resulting from the method correspond to those of the vehicle headlight according to the invention, so that only the advantages of the vehicle headlight are subsequently implemented and the advantages achieved also apply correspondingly to the method according to the invention.
    In order to calculate the required image data in high resolution from interpolation points, it is expedient for the interpolation of values between interpolation points to be linear, since the calculation can then be carried out particularly simply and be carried out, for example, by a commercially available, cost-effective "embedded system" It is clear that the calculation of the image data can be carried out for example by one or more processors or arithmetic units, in other words, the calculation can be carried out on a single microprocessor or even on a logical arithmetic unit organized as a distributed system architecture.
    If particularly uniform light distributions are required in special applications, or if the formation of, for example, a sharp cut-off line of a low beam is required, other interpolation methods, such as polynomial trains (splines) or piecewise interpolations, can also be used. Likewise, simpler interpolation methods are conceivable, such as, for example, a constant course starting from a support point until immediately before the next support point.
    It is very advantageous if the interpolation points are defined by reflection values or transmission values of the optoelectronic elements. As a result, the image data can be used directly for controlling the output unit, without having to convert or adapt, for example, absolute or relative brightness values, and to save computing time.
    The calculation methods within the control unit can be kept simple if the distances between support points are the same, since the respective distance of the calculated points for image data in high resolution between the support points has to be calculated only once. In other words, the support points are transformed by a simple linear image transformation to the image resolution of the optoelectronic component in the form of a one-time calculation (for example, a linear interpolation) by determining the increments in the row and column direction only for a support point, which then for all other support points also apply. As a result, both computing time and programming effort can be kept low.
    It is particularly advantageous if the situation light distribution is a light distribution of a low beam or high beam, since the light distributions are defined in advance by relevant standards and, where appropriate, differences of different national standards can be easily taken into account.
    In a favorable further development of the invention, the output unit is set up to transmit image data by means of at least one data signal, wherein the at least one
    Data signal comprises a time window in which image information of the image data is transmitted and the time window is limited by a rear signal shoulder of the image information and a front signal shoulder of the subsequent image information, and the calculation of the situation light distribution is performed in this time window.
    The calculation of the situation light distribution takes place in a time interval in which the occupancy of the control unit is optimally positioned by the calculation of the image information and the control unit outside this time window can be used for other calculations or controls of the vehicle headlight.
    It is extremely advantageous if the at least one light source comprises a semiconductor light emitting diode, in particular a high current light emitting diode or a laser diode, since a small size can be achieved in the vehicle headlight. In addition, the light is generated with high efficiency and reduces the waste heat of the light source, which is very important especially when using temperature-sensitive AMDs or DMDs.
    The invention and its advantages are described in more detail below with reference to non-limiting exemplary embodiments, which are illustrated in the accompanying drawings. The drawings show in:
    1 is a perspective view of a first embodiment of a vehicle headlamp according to the invention,
    2 is a perspective view of a second embodiment of a vehicle headlamp according to the invention,
    3 is a front view of an optoelectronic component with an enlarged detail representation contained optoelectronic elements,
    4 shows a block diagram of a vehicle headlight according to the invention,
    5 shows a time profile of signals for controlling the optoelectronic component according to FIG. 4, FIG.
    6 is a perspective view of a calculated light distribution of a vehicle headlamp according to the invention,
    7 is an illustration of a light distribution of a vehicle headlight according to the invention.
    With reference to FIGS. 1 to 7, embodiments of the invention will now be explained in more detail. In particular, important parts are shown for the invention in a headlamp, it being understood that a headlamp contains many other, not shown parts that allow a meaningful use in a motor vehicle, in particular a car or motorcycle. For clarity, therefore, for example, cooling devices for components, control electronics, other optical elements, mechanical adjustment or brackets are not shown.
    The embodiments also illustrate the inventive method for generating a light distribution in front of a vehicle by a vehicle headlamp of the type described here.
    It is clear that the embodiments and their features both individually represent the invention, as well as can be combined with each other.
    Fig. 1 shows a first embodiment of a Fahrzugscheinwerfers 1 according to the invention. A light source 2, which may contain, for example, a light-emitting diode or power LED and a primary optics 3 for focusing a light beam, is set up to illuminate an optoelectronic component 7.
    The optoelectronic component 7 may comprise a plurality of optoelectronic elements 8 arranged in a two-dimensional matrix. In this first embodiment, the optoelectronic elements 8 are individually controllable micromirrors, in which the reflection effect of each individual element of the matrix is variably adjustable (for example, an AMD or DMD).
    The optoelectronic component 7 can reflect the incident light in the direction of a projection optical system 4, wherein the controlled matrix elements individually adjust their reflection factor by modulation of the angles of the micromirrors and modulate a desired light distribution onto the incident light beam. The projection optics 4 is oriented in the emission direction of the vehicle headlight 1 and thus produces the desired light distribution in front of the vehicle.
    The control of the optoelectronic component 7 is effected by the drive unit 10, in which a desired light distribution can be calculated and output to the required control of the optoelectronic elements 8 in the form of control signals to the optoelectronic component 7.
    Fig. 2 shows a second embodiment of a Fahrzugscheinwerfers 11 according to the invention. A light source 12, which may contain, for example, a light-emitting diode, high-current LED (power LED) or a laser diode and a primary optics 13 for focusing the light beam emanating from the light source 12, is set up to illuminate an optoelectronic component 17.
    The optoelectronic component 17 comprises a plurality of optoelectronic elements arranged in a two-dimensional matrix. In this second embodiment, the optoelectronic elements 8 are individually controllable translucent elements, in which the light transmission effect of each individual element of the matrix is variably adjustable (for example, an LCD).
    The optoelectronic component 17 can transmit the incident light in the direction of a projection optical system 14, wherein the controlled matrix elements individually adjust their light transmission and modulate a desired light distribution onto the incident light beam. The projection optics 14 is oriented in the emission direction of the vehicle headlight 11 and thus produces the desired light distribution in front of the vehicle.
    The control of the optoelectronic component 17 is effected by the control unit 10a, in which a light distribution can be calculated and the necessary control of the optoelectronic elements, for example the pixels of an LCD, are output to the optoelectronic component 17 in the form of control signals
    In addition to the variants of the optoelectronic component 7, 17 shown in FIG. 1 and FIG. 2, it is of course also possible to use other technologies which enable a corresponding modulation of the light. For the sake of completeness, LCoS systems (LCoS, "Liquid Crystal on Silicon") should therefore also be mentioned.
    The modulation of the light allows a segmentation of the light distribution on the road, that is, the light distribution projected onto the roadway can be controlled individually for different solid angles. For a light image projected on a roadway, the number of segments that can be controlled individually by a vehicle headlight according to the invention is important in order to generate light distributions that are individually adapted for different driving situations. The number of these segments depends, for example, on the number of micromirrors and is, for example, 854 × 480 micromirrors or pixels in a rectangular matrix arrangement.
    If two headlights are used for vehicles, the segments can be strung together and the number of segments doubled. Usually, in the installation position of the vehicle headlamp more segments in the horizontal direction than in the vertical direction are needed. For this reason, in practice, the light distributions segmented by the optoelectronic components are frequently strung together by two vehicle headlights on the short sides of the matrix arrangement, thus doubling the horizontal resolution.
    It is also a complete or even partial overlay or overlap of two or more light distributions possible, for example, to achieve a stronger contrast in image areas.
    FIG. 3 shows an example of an optoelectronic component 7 in the form of a DMD in front view. An enlarged image section shows optoelectronic elements 8 arranged in matrix form, which comprise individually controllable micromirrors, in which example every second micromirror is tilted.
    FIG. 4 shows an electrical block diagram of the vehicle headlight 1 according to the invention. A control device 5 can calculate a light distribution in the form of image data 21 from a light model 20 and output it to the optoelectronic component 7 via an output unit 6 in the form of video signals 22. The control device 5 forms, together with the output unit 6, the drive unit 10 to which the optoelectronic component 7 is connected. The memory required by the controller 5 may be located both on a microprocessor chip and on a separate chip or memory chip. In addition, the control device 5 may comprise an interface via which, for example, light models 20 can be transmitted to the control device 5.
    FIG. 5 shows signal curves in the time domain for a data signal S1 and a V-sync control signal S2 with synchronization pulses VI, VI 'of a video signal. The control device 5 repeatedly performs recalculations of the desired light distribution in order to cope with the respective driving situation of the vehicle and to calculate the respectively required light distribution. The control device 5 transmits the calculated light distribution in the form of image data 21 to the output unit 6, which in turn transmits the image data in the form of video signals 22 comprising a data signal S1 and a V-sync signal S2 to the optoelectronic component 7. Often, video signals 22 have a signal frequency to achieve, for example, a refresh rate of, for example, 25 frames per second. For illustration, two consecutive time windows TI and T2 are shown in FIG. The time window TI starts with an end of transmission of image information and lasts until the beginning of the transmission of subsequent image information of the image data 21 in the data signal S1. The time window T2 begins after the end of the time window TI and lasts until the end of the transmission of image information from the image data 21 in the data signal S1.
    In other words, the output unit 6 is adapted to transmit image signals by means of at least one data signal Sl to the optoelectronic component 7,17 and the at least one data signal Sl includes a time window T2 which is between a front signal shoulder PI and a rear signal shoulder P2 the picture information PIC is located in the data signal Sl. The time window TI is located between a rear signal shoulder P2 of the image information PIC and a front signal shoulder PI 'of the subsequent image information PIC' in the data signal S1. Any driving situation may require a recalculation of the light distribution, for example when a driver of a vehicle changes from a low beam function to a high beam function of the vehicle headlight. This change must take place very rapidly, whereby the computing capacity of the control device 5 required for this process should be taken into account. It is particularly advantageous if the calculation of the situation light distribution in the time window TI is performed, since at this time no image data is transmitted and computing capacity can be available on the part of the control device 5. The time window TI is between each rear signal shoulder P2 ("back porch") and front signal shoulder PI '("front porch"). Depending on a desired image refresh rate, only a few milliseconds remain in the time window TI for calculating the light distribution. For example, for a video signal comprising 640x480 pixel image information and having an image refresh rate of 60 Hz, the time window TI is approximately 1.4 ms between the back signal shoulder P2 of the image information PIC and the front signal shoulder PI 'of the subsequent image information PIC '.
    FIG. 6 shows a spatial representation of an example of a calculated light distribution, for example that of a high beam. On the axes of the coordinate system shown, the horizontal and vertical positions of the respective brightness value (or dimming value) plotted on the axis ZA are shown on the axes XA and YA.
    Other light distributions are just as possible as the light distribution of a low beam, a cornering light, etc.
    The light distribution can be described by support points 9. Each support point 9 includes, for example, a data set (X, Y, Z), where Z is the desired brightness value in the position (X, Y). By interpolation between the interpolation points further brightness values can be calculated. There are different interpolation possible. When using a linear interpolation, the slopes between the nodes 9 are calculated and in the calculation of points that lie between the individual nodes 9, the respective equal slopes are used to keep the calculation itself particularly simple. This may be necessary if the computing capacity of the control device 5 is limited. The time window TI is particularly favorable for the calculation and can be advantageously used by performing calculations for light distributions in the time window TI.
    The values of the individual matrix elements of the optoelectronic component 7, 17 can correspond to an absolute or relative brightness in the calculated light distribution. Furthermore, the values may correspond to a setting value of a respective optoelectronic element 8, for example values between 0 and 255, the reflection factor or brightness values or dimming values between 0% for dark or 100% for light.
    Depending on the definition of these values, which is predetermined by the DMD system, it may be necessary for the optoelectronic component 7 to adapt to setting ranges of the optoelectronic elements 8.
    In some DMD systems, the modulation of the light by high-frequency tilting of the respective micromirrors takes place in the sense of pulse width modulation (PWM), wherein the duty cycle is adjusted, for example, for a dimming of 70%, the micromirrors in tact 70 / Alternatively, the setting values of the individual matrix elements of the optoelectronic component 7, 17 can correspond to the positions of micromirrors or tilting frequencies of the micromirrors.
    FIG. 7 shows, by way of example, a high-resolution light distribution of a low beam on a road produced by the arrangement according to the invention, dark areas being shown for areas of high brightness. The illustration shown is therefore inverse to a brightness distribution.
    List of reference numbers: 1.11 Vehicle headlights 2.12 Light source 3.13 Primary optics 4.14 Projection optics 5 Control device 6 Output unit 7, 17 optoelectronic component 8 optoelectronic element 9 support point 10, 10a activation unit 20 light model 21 image data 22 video signal 51 data signal 52 V sync signal TI time window 1 T2 time window 2 PI , PI 'Front porch P2 Rear back porch VI, VI' Video sync pulse PIC, PIC 'Image information X, Y, Z Coordinates XA, YA, ZA Axis
    权利要求:
    Claims (13)
    [1]
    claims
    1. A vehicle headlight (1,11), comprising at least one light source (2,12), at least one projection optics (4,14), at least one control device (5), at least one output unit (6), and at least one optoelectronic component (7, 17) comprising a controllable arrangement of a plurality of individually adjustable optoelectronic elements (8) in the form of a two-dimensional matrix, an image resolution being defined by the product of the number of rows and columns of the matrix, and the vehicle headlamps (1,11) is configured to emit light from the at least one light source (2, 12) in the direction of the at least one optoelectronic component (7, 17) and to modulate it by means of the at least one optoelectronic component (7, 17) and at least partially in the direction of the at least one Projection optics (4, 14) to illuminate and form a light image in front of the vehicle, wherein the at least one control device (5) with the at least one output unit (6) is connected, the at least one output unit (6) with the at least one optoelectronic component (7,17) for driving the optoelectronic elements (8) is connected, characterized in that on the part of at least one control device (5) at least one light model (20) in the form of a plurality of support points (9) is stored, and the at least one control device (5) is adapted to from the at least one light model (20) image data (21) in the form of a two-dimensional, matrix-like situation light distribution with a situation image resolution, which is defined by the product of the number of rows and columns of the situation light distribution, the situation image resolution being substantially higher, preferably at least one hundred times, particularly preferably at least ten thousand times as high as the plurality of support points (9) of the light model and the image data ( 21) are preferably formed by interpolation from the support points (9), and the image data (21) are transmitted from the at least one control device (5) to the at least one optoelectronic component (7, 17) by means of the at least one output unit (6).
    [2]
    2. Vehicle headlight (1,11) according to claim 1, characterized in that the interpolation of values between each adjacent support points (9) is linear.
    [3]
    3. Vehicle headlight (1,11) according to claim 1 or 2, characterized in that the support points (9) are defined by reflection values or transmission values of the optoelectronic elements (8).
    [4]
    4. Vehicle headlight (1,11) according to one of claims 1 to 3, characterized in that the distances between each adjacent support points (9) are equal.
    [5]
    5. Vehicle headlight (1,11) according to one of claims 1 to 4, characterized in that the situation light distribution is a light distribution of a low beam or a high beam of a vehicle.
    [6]
    6. Vehicle headlight (1,11) according to one of claims 1 to 5, characterized in that the output unit (6) is arranged to transmit image data (21) by means of at least one data signal (Sl) to the optoelectronic component (7,17) and the at least one data signal (Sl) includes a time window (TI) located between a rear signal shoulder (P2) of the image information PIC and a front signal shoulder (PI ') of the subsequent image information PIC' in the data signal (S1) , wherein the calculation of the situation light distribution in the time window (TI) is performed.
    [7]
    7. Vehicle headlight (1,11) according to one of claims 1 to 6, characterized in that the at least one light source (2) comprises a semiconductor light emitting diode, in particular a high current light emitting diode or a laser diode.
    [8]
    8. A method for generating at least one light distribution with a vehicle headlight (1,11) comprising at least one light source (2,12), at least one projection optics (4,14), at least one control device (5), at least one output unit (6), and at least one optoelectronic component (7, 17) comprising a controllable arrangement of a plurality of individually adjustable optoelectronic elements (8) in the form of a two-dimensional matrix, wherein an image resolution is defined by the product of the number of rows and columns of the matrix, and the vehicle headlight (1, 11) is set up to emit light from the at least one light source (2, 12) in the direction of the at least one optoelectronic component (7, 17) and to modulate it by means of the at least one optoelectronic component (7, 17) and at least partially in the direction of the at least one projection optics (4, 14) to illuminate and in front of the vehicle to form a light image, wherein the at least a control device (5) is connected to the at least one output unit (6), the at least one output unit (6) is connected to the at least one optoelectronic component (7, 17) and drives the optoelectronic elements (8), characterized in that the at least one control device (5) at least one light model (20) is stored, and the at least one control device (5) from at least one light model (20), which in the form of a plurality of support points (9) in one of the control device (5) Memory is stored by the control device, image data (21) in the form of a two-dimensional, matrix-like situation light distribution with a situation image resolution, which is defined by the product of the number of rows and columns of the situation light distribution to form, the situation image resolution much higher, preferably at least a hundred times , particularly preferably at least ten thousand times as high a ls the plurality of support points (9) of the light model and the image data (21) preferably by interpolation from the support points (9) are formed, and the image data (21) by means of the at least one output unit (6) on the at least one optoelectronic component (7 , 17).
    [9]
    9. The method according to claim 8, characterized in that the interpolation of values between respectively adjacent support points (9) takes place linearly.
    [10]
    10. The method according to claim 8 or 9, characterized in that the support points (9) by reflection values or transmission values of the optoelectronic elements (8) are defined.
    [11]
    11. The method according to any one of claims 8 to 10, characterized in that the distances between each adjacent support points (9) are equal.
    [12]
    12. The method according to any one of claims 8 to 11, characterized in that the situation light distribution is a light distribution of a low beam or a high beam of a vehicle.
    [13]
    13. The method according to any one of claims 8 to 12, characterized in that the output unit (6) image data (21) by means of at least one data signal (Sl) to the optoelectronic component (7,17) transmits, and the at least one data signal (Sl) a time window (TI) located between a rear signal shoulder (P2) of the image information PIC and a front signal shoulder (PI ') of the image information PIC in the data signal (S1), the calculation of the situation light distribution in the time window (TI ) is carried out.
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    同族专利:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50532/2016A|AT518725B1|2016-06-13|2016-06-13|Device and method for generating a light distribution with a vehicle headlight|ATA50532/2016A| AT518725B1|2016-06-13|2016-06-13|Device and method for generating a light distribution with a vehicle headlight|
    JP2019517126A| JP6792071B2|2016-06-13|2017-05-22|Vehicle floodlight|
    KR1020187037208A| KR20190011269A|2016-06-13|2017-05-22|Vehicle headlight|
    CN201780036632.5A| CN109311417B|2016-06-13|2017-05-22|Vehicle headlight|
    US16/308,500| US10391927B2|2016-06-13|2017-05-22|Vehicle headlight|
    PCT/AT2017/060135| WO2017214649A1|2016-06-13|2017-05-22|Vehicle headlight|
    EP17730352.6A| EP3468839B1|2016-06-13|2017-05-22|Vehicle headlight|
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