• 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:
    Lighting device (1) for a vehicle headlight (2), in particular for a motor vehicle headlight, comprising a low beam module (3) for generating a segmented low beam distribution (9b) and a high beam module (4) for generating a segmented high beam distribution (9c), the high beam module (4 ) and the low-beam module (3) each having a plurality of light sources (6) for generating the respective light distribution (9b, 9c), wherein individual light sources (6) for illuminating different segments of the respective light distributions (9b, 9c) are arranged, the Light sources (6) are preferably LEDs, and wherein the low beam module (3) and the high beam module (4) are each associated with a projection lens (3a, 4a).
    公开号:AT517156A1
    申请号:T50370/2015
    申请日:2015-05-06
    公开日:2016-11-15
    发明作者:Riesenhuber Michael；Taudt Lukas；Frank Heimo；Hungendorfer Martin；Plank Josef
    申请人:Zkw Group Gmbh；
    IPC主号:
    专利说明:

    Lighting device for a vehicle headlight
    The invention relates to a lighting device for vehicle headlights, in particular for a motor vehicle headlamp, comprising a low beam module for generating a low beam and a high beam module for generating a high beam distribution, the high beam module and the low beam module each having a plurality of spruce sources for generating the respective spruce distribution, wherein individual light sources for Illumination of different segments of the respective light distributions are set up, wherein the light sources are preferably LEDs.
    Another aspect of the invention relates to a motor vehicle headlight with such a lighting device and to a motor vehicle with at least one lighting device and / or such a motor vehicle headlight.
    For the purposes of this application, the terms "dipped-beam distribution" and "high-beam distribution" are understood to mean a distribution of light that complies with the statutory provisions, in particular the regulations applicable in Austria.
    Illuminating devices of this type have become known, for example, from patent document AT 513 341 A1. The lighting device shown therein includes a low beam module and a high beam module, which are collectively designed as a single integral light module. This module is a single imaging optics, more specifically associated with a lens by means of which a light image can be projected in the desired manner on the front of the lighting device area.
    The known from the prior art lighting devices have the common disadvantage that they have a high space requirement in the installed state in the vertical direction and therefore are not suitable for use in particularly compact vehicle headlamps. This fact runs contrary to the interest the vehicle design, in particular that of lighting devices, largely free to design and limits the possibilities of vehicle design in an undesirable manner.
    It is therefore an object of the invention to provide a lighting device for vehicle headlights, which allows a particularly compact, in particular flat construction of a vehicle headlight. This object is achieved with a lighting device of the type mentioned, in which according to the invention, the low-beam module and the high beam module are formed separately from each other, wherein the low-beam module and the high-beam module is assigned in each case a projection lens. Due to the separate design of the low beam module and the high beam module and the separate assignment of a projection lens, it is possible to make the evening light module and the high beam module and the associated projection lenses more compact, since the individual modules and ones only need to be optimized for a spruce function. For the purposes of this disclosure, the term "separately formed" means an arrangement in which the low-beam module and the high-beam module are not formed in one piece and are therefore offset from each other, the modules being preferably offset from one another at least partially normal to the direction of travel Invention, it is possible to build a headlamp particularly compact.
    The high beam module and the low beam module each have a plurality of spruce sources for generating the respective spruce distribution, wherein the spruce sources are preferably FEDs. The term plurality means a number of at least three, four, ten, twenty or more sources of spruce. By providing a plurality of spruce sources, it is possible to construct the respective spruce distribution from individual image segments, which are combined to form an overall light distribution, whereby each individual segment can preferably be activated or deactivated individually by switching the respective spruce source on or off. The technical design of the respective module defines the resolution of the module together with the number of installed spruce sources. The number of segments of the low beam distribution and / or the high beam distribution is at least three, four, ten or at least twenty segments. Due to the small physical dimensions and the high efficiency of FEDs, these are particularly suitable for the mentioned function. In other words, a vehicle headlight equipped with such a lighting device has a module combination for generating a segmented low and high beam.
    Preferably, the low-beam module and the high-beam module are offset from one another in a state installed in the motor vehicle in the horizontal direction, so that a particularly flat embodiment of the lighting device is made possible.
    In addition, it can be provided that the lighting device further comprises a front-end module for generating an apron light distribution.
    Preferably, the apron module, the low-beam module and the high-beam module can be arranged in a state installed in the motor vehicle and horizontally offset from one another that the modules are arranged in a horizontally oriented row, whereby the entire lighting device can be made particularly compact and flat.
    In order to produce an improved light image with the aid of the illumination device according to the invention, it can be provided that the light distribution of the low beam module at least partially overlaps with the light distribution of the high beam module.
    The low beam module may be configured to activate additional light sources associated with the low beam module upon activation of the high beam module, wherein the light distribution generated by the additional light sources at least partially exceeds a bright and dark boundary of the low beam module and overlaps with the high beam distribution.
    In particular, it may be provided that the high-beam module generates a high-beam distribution which at least partially illuminates an area lying below a bright-dark boundary. Thus, in such an arrangement, the high beam module at least partially radiates in the low beam range of the low beam module, whereby a particularly homogeneous transition between the light images of the high beam module and the low beam module can be ensured. A darkened transition region, which would typically occur in a one-piece construction of low and high beam module, can thus be avoided.
    The low beam and high beam modules may each preferably comprise a light guide unit with a plurality of light guides, each light guide having a light entrance and a light exit surface, each of them
    Light input surface is associated with an LED light source for coupling light and guide the light guides the coupled light on the light exit surface on the respective projection lens. With this structure, a segmented light image can be generated in a particularly favorable manner. The basic structure of such a light guide unit is shown for example in the aforementioned AT 513 341 Al, wherein in the present invention, a significant difference is that the light guide unit of the present invention is provided in each case for a light module. Therefore, in contrast to the light guide unit according to AT 513 341 A1, the light guide unit of the low beam module and that of the high beam module are formed separately from each other. In the case of AT 513 341 A1, by contrast, a single light guide unit is provided for converting both light functions (dipped beam and main beam), the upper lines of the light guide unit being associated with the low beam and the lower lines with the high beam, the light guide unit being associated with only one single lens. In the subject invention, the light guide unit of each module is designed and optimized for the respective light function. Preferably, it may be provided that the LED light sources of the dipped beam module are arranged in two rows arranged one above the other and the LED light sources of the high beam module are arranged in one, preferably in two rows. The arrangement of the light sources of the dipped-beam module in two lines makes it possible to segment the dipped beam distribution in the vertical direction in two superimposed areas. This type of segmentation is not mandatory in the high beam distribution, but can also be used there, if this benefits z.b. in efficiency. Although a reduced in the high beam module compared to the Abblendmodul cutting distance leads to a larger segment width, but this module can be made very compact and flat.
    The projection lenses preferably have a maximum height of 50 mm, this height being measured in the installed state of the lighting device in the vertical direction.
    The invention is explained in more detail below with reference to an exemplary and non-limiting embodiment, which is illustrated in the figures. It shows
    1 shows a perspective view of a lighting device 1, in particular a motor vehicle headlight,
    FIG. 2 shows a schematic representation of the dimming, high beam, and apron module,
    FIG. 3 is a sectional view of one of the low-beam module;
    Figure 4 is a schematic representation of a light image distribution of the lighting device according to the invention in the high beam operation and
    Figure 5 is a schematic representation of a light image distribution of the lighting device according to the invention in the low beam operation.
    Figure 1 shows a perspective view of a lighting device 1, which is installed in a motor vehicle headlight 2. The lighting device 1 comprises a low-beam module 3 for generating a low-beam distribution and a high-beam module 4 for generating a high-beam distribution, the low beam module 3 and the high beam module 4 being formed separately from each other, wherein each of the low beam module 3 and the high beam module 4 is associated with a projection lens 3a and 4a , As can be seen in FIG. 1, the dipped-beam module 3 and the high-beam module 4 are mutually offset in the horizontal direction. In addition, in the embodiment shown, the lighting device 1 has a front-end module 5, which is likewise offset in the horizontal direction from the other two modules, wherein the three modules together form a horizontally oriented row. In this case, the apron module 5 is preferably arranged on the inner side of the headlight, that is to say the region facing the center of the vehicle. The dipped-beam module should preferably be arranged on the side of the vehicle headlight facing the vehicle exterior. Between the low beam module 3 and the apron module 5, the high beam module 4 is arranged in the illustrated embodiment. In the vehicle headlight shown in Figure 1 is a left-hand headlight (seen in the direction of travel).
    FIG. 2 shows a schematic representation of the low-beam module 3, the high-beam module 4 and the apron module 5, wherein the apron module 5 is arranged in practice next to the high-beam module 4 and not next to the low-beam module 3. The projection lenses 3a and 4a have a height of at most 50 mm, wherein the height is measured in a vehicle-installed state in the vertical direction.
    FIG. 3 shows a sectional view of the dipped-beam module 3, wherein two superimposed light sources 6 can be seen therein, wherein behind the light sources 6 further light sources are arranged in two horizontal rows. The light sources 6 are arranged on a carrier 7, which is preferably provided with cooling fins. The light sources 6 are set up to couple light into a light guide unit 8, wherein the light guide unit 8 or the light guides has light entry surfaces 8a and light exit surfaces 8b, whereby light is directed via the light exit surface 8b into the downstream projection lens 3a. The embodiment of the light guide unit 8 shown is merely exemplary and can of course also have a structure. For example, the light-guiding unit of the high-beam module is optimized for a single-row arrangement of the light sources 6.
    FIG. 4 shows a schematic illustration of a light distribution of the lighting device 1 according to the invention according to FIG. 1. The lighting device 1 is in the high-beam operation in which both the high-beam module 4 and the low-beam module 3 are fully activated, ie preferably all the light sources 6 for generating the desired light distribution Straight ahead of a vehicle are turned on. The activation of all the light sources of the dipped-beam module 3 (if no blanking of individual segments is required) makes it possible to achieve a particularly homogeneous transition between the high-beam distribution and the dipped-beam distribution. In this way, the dipped-beam module 3 is configured to activate additional light sources 6 associated with the low-beam module 3 when the high-beam module 4 is activated, the light distribution generated by the additional light sources 6 at least partially exceeding a light-dark boundary H of the dipped beam module 4 and communicating with the High beam distribution 9c overlaps. Therein, the apron light distribution 9a of the apron module 5 is shown in a lower area. The low beam module 3 generates the low beam distribution 9b followed by the high beam distribution 9c generated by the high beam module 4. The light distributions of the apron module 5 and the low-beam module 3 overlap each other. In addition, the light distributions of the dipped-beam module 3 and of the high-beam module 4 overlap in the region 9d, so that the overall illumination image of the illumination device according to the invention is largely free from inhomogeneities.
    Figure 5 shows a schematic representation of a light image distribution of the lighting device according to the invention in the low beam operation. Therein are those light sources 6, which are responsible for the illumination of the upper, starting from the vertical axis V to the left (in right-traffic operation) and to the right (left-hand operation) arranged segments, disabled, so as largely the course of a Light-dark border 10 depict.
    The number of light sources 6 depends on the desired resolution of the individual segments of the lighting device. Preferably, the light guide unit 8, the projection lens 3a, 4a and the number of light sources 6 are selected or configured so that a resolution of at least 2 ° per segment in the horizontal direction can be achieved.
    In view of this teaching, one skilled in the art will be able to arrive at other embodiments of the invention which are not shown. The invention is therefore not limited to the embodiments shown. Also, individual aspects of the invention or the embodiments can be picked up and combined with each other. Essential are the ideas underlying the invention, which can be performed by a person skilled in the knowledge of this description in a variety of ways and still remain maintained as such.
    权利要求:
    Claims (12)
    [1]
    claims
    1. Lighting device (1) for a vehicle headlight (2), in particular for a motor vehicle headlight, comprising a low beam module (3) for generating a segmented low beam distribution (9b) and a high beam module (4) for generating a segmented high beam distribution (9c), the high beam module ( 4) and the low-beam module (3) each having a plurality of light sources (6) for generating the respective light distribution (9b, 9c), wherein individual light sources (6) for illuminating different segments of the respective light distributions (9b, 9c) are arranged, the light sources (6) are preferably LEDs, characterized in that the dipped beam module (3) and the high beam module (4) are formed separately from each other, wherein the low beam module (3) and the high beam module (4) each associated with a projection lens (3a, 4a) is.
    [2]
    2. Lighting device (1) according to claim 1, characterized in that the low beam module (3) and the high beam module (4) are offset in a built-in motor vehicle state in the horizontal direction to each other.
    [3]
    3. Lighting device (1) according to claim 1 or 2, characterized in that the lighting device (1) further comprises a front-end module (5) for generating an apron light distribution (9a).
    [4]
    4. lighting device (1) according to claim 3, characterized in that the apron module (5), the low beam module (3) and the high beam module (4) are arranged in a built-in motor vehicle state and horizontally offset from each other that the modules (3 , 4, 5) are arranged in a horizontally oriented row.
    [5]
    5. Lighting device (1) according to one of claims 1 to 4, characterized in that the light distribution (9b) at least partially overlaps the low beam module (3) with the light distribution (9c) of the high beam module (4).
    [6]
    6. lighting device (1) according to claim 5, characterized in that the low beam module (3) is adapted to additional to the low-beam module (3) associated light sources (6) upon activation of the high beam module (4) to activate, which by the additional light sources (6) generated light distribution at least partially exceeds a light-dark boundary (H) of the low beam module (4) and overlaps with the high beam distribution (9c).
    [7]
    7. Lighting device (1) according to claim 5 or 6, characterized in that the high beam module (4) generates a high beam distribution (9c), which illuminates an area lying below a light-dark boundary area at least partially.
    [8]
    8. lighting device (1) according to one of claims 1 to 7, characterized in that Abblend- (3) and the high beam module (4) each having a light guide unit (8) with a plurality of light guides, each light guide a Lichteintritts- (8a ) and a light exit surface (8b), wherein each light entry surface (8a) is associated with an LED light source (6) for coupling light and the light guides the coupled light on the light exit surface (8b) on the respective projection lens (3a, 4a) ,
    [9]
    9. lighting device (1) according to claim 8, characterized in that the LED light sources (6) of the low-beam module (3) are arranged in two superimposed lines and the LED light sources of the high beam module (4) are arranged in a single row.
    [10]
    10. Lighting device (1) according to one of claims 1 to 9, characterized in that the projection lenses (3a, 4a) have a maximum height of 50mm.
    [11]
    11. Motor vehicle headlight (2) with a lighting device (1) according to one of claims 1 to 10.
    [12]
    12. Motor vehicle with at least one lighting device (1) according to one of claims 1 to 10, in particular with a motor vehicle headlight (2) according to claim 11.
    类似技术:
    公开号 | 公开日 | 专利标题
    AT517156B1|2017-05-15|Lighting device for a vehicle headlight
    EP2893249B1|2016-10-12|Lighting unit for a headlight
    EP3343091B1|2021-02-17|Light module for motor vehicle headlamps
    DE102010046571B3|2012-03-08|Headlight for a motor vehicle and motor vehicle
    AT517699B1|2017-04-15|Light source arrangement in a pixel light light module
    EP2892759B1|2020-04-22|Headlight for vehicles
    EP2984396B1|2019-05-22|Lamp unit comprising a shield having at least one light window
    DE102011053225A1|2012-06-14|Headlight for a vehicle
    DE102010047697A1|2012-04-12|Lighting device for generating a glare-free high beam function
    DE102013216318A1|2015-02-19|A method of controlling a headlamp assembly for a vehicle and headlamp assembly
    DE102009008418A1|2010-08-12|Lighting device for automobile, has filter that is transparent for infrared radiation of light source and is reflected for radiation of another light source, and ray of light emitting from latter source is alignable
    DE102017206274A1|2018-10-18|Method for generating a total light distribution of a motor vehicle and high beam module, headlights and motor vehicle for carrying out the method
    WO2018086829A1|2018-05-17|Illumination device, in particular for a motor vehicle
    DE202015009210U1|2016-11-24|Rotatable lighting and / or signaling module
    DE102016124863A1|2018-06-21|A system, method, computer program product and computer-readable medium for light-shaping a vehicle exterior light
    EP3356728B1|2019-06-26|Lighting device for a motor vehicle headlight
    WO2017191044A1|2017-11-09|Led lighting module for a headlight for generating a high beam and a low beam
    DE102014102871A1|2015-09-24|Lighting device for vehicles
    AT519125B1|2018-04-15|Lighting device for a motor vehicle headlight and motor vehicle headlights
    DE102019125571A1|2021-03-25|Lighting device for a motor vehicle
    DE102013216075A1|2015-02-19|Lighting device for installation in a motor vehicle
    DE102019107825A1|2020-10-01|Lighting device for a motor vehicle
    DE102017011327A1|2019-06-13|Headlight for a vehicle
    DE202016106194U1|2016-12-22|Bicycle light
    DE102012103312A1|2013-10-17|Light module for headlight of vehicle, has light source for generating light function with multiple light segments that are arranged next to each other, where each light segment has illuminant
    同族专利:
    公开号 | 公开日
    AT517156B1|2017-05-15|
    CN206130784U|2017-04-26|
    DE102016107252A1|2016-11-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2013043623A|2011-08-26|2013-03-04|Stanley Electric Co Ltd|Lighting control device of vehicle headlamp, and vehicle headlamp system|
    AT513341B1|2012-09-03|2015-06-15|Zizala Lichtsysteme Gmbh|Lighting unit for a headlight|
    KR101398225B1|2012-12-27|2014-05-23|현대모비스 주식회사|Head lamp for vehicle|
    JP6218499B2|2013-08-23|2017-10-25|スタンレー電気株式会社|Lighting control device for vehicle headlamp, vehicle headlamp system|DE102017206274A1|2017-04-12|2018-10-18|Volkswagen Aktiengesellschaft|Method for generating a total light distribution of a motor vehicle and high beam module, headlights and motor vehicle for carrying out the method|
    KR102109136B1|2017-06-13|2020-05-11|주식회사 아모센스|Lens cover and led light apparatus having the same|
    JP2019096486A|2017-11-22|2019-06-20|スタンレー電気株式会社|Vehicular lighting tool|
    FR3090816B1|2018-12-19|2021-07-02|Valeo Vision|Lighting device for motor vehicle|
    WO2021036215A1|2019-08-23|2021-03-04|华域视觉科技有限公司|Miniature vehicle lamp module|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50370/2015A|AT517156B1|2015-05-06|2015-05-06|Lighting device for a vehicle headlight|ATA50370/2015A| AT517156B1|2015-05-06|2015-05-06|Lighting device for a vehicle headlight|
    DE102016107252.4A| DE102016107252A1|2015-05-06|2016-04-19|Lighting device for a vehicle headlight|
    CN201620403126.8U| CN206130784U|2015-05-06|2016-05-06|A lighting device , motor vehicle spotlight and motor vehicle for vehicle spotlight|
    [返回顶部]