奥地利专利AT518552A4 Lighting unit for a motor vehicle headlight for generating at least two light distributions

专利PDF首页>>奥地利专利

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:
The invention relates to a lighting unit for a motor vehicle headlight for generating at least two light distributions, the lighting unit comprising: a first light source (1) for generating a first light distribution, a second light source (2) for generating a second light distribution, a reflector (3), an exit lens (4), and collimators (5, 6; 5, 6a, 6b, 6c) into which the light sources (1, 2) can supply light, and wherein the reflector (3) receives the light rays from the collimators ( 5, 6, 5, 6a, 6b, 6c) deflecting light beam (S1, S2) in the direction of the exit lens (4), reflector (3), exit lens (4) and collimators (5, 6, 5, 6a, 6b, 6c) are formed from a light-transmissive body (100), in which light beams (S1, S2) propagate by means of total reflection, the reflector (3) has a first reflector surface region (30), which light exclusively from the at least one first light source ( 1) and the reflector (3) has a second reflector surface region (31) which receives light exclusively from the at least one second light source (2), and wherein the exit lens (4) has a first exit lens region (40) Receiving light exclusively from the first reflector surface region (30), and the exit lens (4) has a second exit lens region (41) which receives light exclusively from the second reflector surface region (31), and via which first exit lens region Area (40) radiated light as the first light distribution and over the second exit lens area (41) emitted light is displayed as a second light distribution.
公开号:AT518552A4
申请号:T50749/2016
申请日:2016-08-19
公开日:2017-11-15
发明作者:Ecker-Endl Markus
申请人:Zkw Group Gmbh；
IPC主号:

专利说明:

Lighting unit for a motor vehicle headlight for generating
AT LEAST TWO LIGHT DISTRIBUTIONS
The invention relates to a lighting unit for a motor vehicle headlight for generating at least two, in particular different, light distributions, the lighting unit comprising: at least a first light source for generating a first light distribution, at least a second light source for generating a second light distribution, a reflector, an exit lens, in particular in the form of a projection lens, collimators into which the light sources can feed light, wherein light from the at least one first light source is aligned by the at least one collimator associated with the at least one first light source to form a first light bundle, and wherein Light of the at least one second light source is aligned by the at least one of the at least one second light source associated collimator to a second light beam, and wherein the reflector, the light beams emerging from the collimators Lichtbün del deflects in the direction of the exit lens, and wherein the exit lens images the light reflected by the reflector light beams in the form of the first and the second light distribution, and wherein
Reflector, exit lens and collimators, from a translucent, preferably one-piece, body are formed, and wherein on a reflector boundary surface of the reflector and preferably on the collimator boundary surfaces of the collimators, which are totally reflected in the light-transmissive body light beams.
Furthermore, the invention relates to a lighting device for a motor vehicle headlight, which comprises one or more lighting units according to the invention.
Finally, the invention also relates to a motor vehicle headlight which comprises at least one illumination unit according to the invention and / or at least one illumination device according to the invention.
A lighting unit or a lighting device in the context of the present invention can be used in a motor vehicle headlight for the realization of one or in particular of two or more light distributions. Examples of such light distributions in the context of the present invention, which can be generated by a lighting unit or lighting device according to the invention, are: high beam distribution, partial high beam distribution, driving direction indicator, daytime running light.
In particular, a lighting unit according to the invention or a lighting device according to the invention can be set up to produce a combination of high beam or partial high beam and direction indicator.
A lighting unit according to the invention or a lighting device according to the invention can be set up to produce a combination of daytime running lights and driving direction indicators.
A lighting unit according to the invention or a lighting device according to the invention can be set up to produce a combination of high beam and daytime running lights. If the daytime running light is operated dimmed in such a lighting unit, then a limiting light can be generated in this way and thus additionally the combination limiting light - high beam can be realized.
Current design trends often require motor vehicle headlights or lighting units or lighting devices for such motor vehicle headlights, which have a compact design and at the same time a good or high efficiency. An illumination unit mentioned in the introduction can also be designed to produce two illumination functions and / or signaling functions with a single translucent body.
It is an object of the invention to provide a lighting unit for a motor vehicle headlight, which fulfills the requirements described above and to improve the known lighting units yet.
This object is achieved with an illumination unit mentioned in the introduction in that, according to the invention, the reflector has a first reflector surface region, which receives light exclusively from the at least one first light source, and the reflector has a second reflector surface region, which light exclusively from the at least one and wherein the exit lens has a first exit lens area which receives light exclusively from the first reflector area area, and the exit lens has a second exit lens area which receives light exclusively from the second reflector area area, and wherein The light emitted from the first exit lens area is imaged as a first light distribution and light emitted via the second exit lens area as a second light distribution.
With the arrangement according to the invention it is possible to optimally coordinate each light distribution independently of the other to the desired and / or necessary requirements, at the same time the arrangement itself remains compact.
Also a segmented light distribution can be generated, i. Each light distribution generated by the lighting unit forms a light segment of a total light distribution. However, the light distribution produced can also be part of an overall light distribution, for example in that each light distribution generates the lorm of the total light distribution, and the totality of all light distributions then supplies the necessary light intensity in the light image.
In particular, these light distributions described above can also be produced when two or more lighting units form a lighting device which can form these light distributions described above.
It can be provided that the light sources in each case comprise one or more LEDs, the light sources (so-called "LED light source") preferably each being single-chip LEDs.
It is preferably provided that the exit lens is formed as a flat or planar surface. The planar surface can also be curved, for example, but preferably without unevenness. It is advantageously provided that the plane surface is at least G-steady.
For a flat surface, the design is easier because only one surface - the reflector surface areas - must be designed.
For example, it is provided that the exit lens extends at an angle of 90 ° to a light exit plane of at least one collimator.
Furthermore, it can be provided that the reflector is designed as a flat surface.
It may be provided that the reflector extends at an angle of 45 ° to a light exit plane of at least one collimator.
The light exit planes of all collimators can run parallel to one another, correspondingly in this case the reflector is arranged at all light exit planes of collimators at 45 °, and the exit lens is arranged at all light exit planes of the collimators at 90 °.
It can be provided that the exit lens extends at an angle of 45 ° to the reflector.
It may be expedient if the first reflector surface region has a structuring, for example by the first reflector surface region being divided into facets, by means of which structuring the light rays reflected by the reflector surface region in the vertical and / or horizontal direction to produce the first light distribution to get distracted.
In this way, the light distribution generated by means of the first reflector surface region [corresponds to light bundle S1 in the figures] can be optimally adapted.
The terms "vertical" and "horizontal" refer to the light image in a screen projection, horizontal means accordingly "in the direction of the H-axis" and vertically "in the direction of the V-axis".
Alternatively or preferably additionally, it may be provided that the second reflector surface region has a structuring, for example in that the second reflector surface region is subdivided into facets, by means of which structuring the light rays reflected by the reflector surface region in the vertical and / or horizontal direction are generated be deflected the second light distribution.
In this way, the light distribution generated by means of the second reflector surface region [corresponds to light bundle S2 in the figures] can be optimally adapted.
In the latter case, that is to say in the case in which both reflector surface regions have structuring, in particular facets, it is preferably provided that the structuring, in particular the facets, of the two reflector surface regions is / are formed differently.
This makes it even better possible to design the different light distribution independently of each other optimally in accordance with the desired and / or required requirements.
For example, it can be provided that the first reflector surface region has one or more transverse, in particular in the horizontal direction, extending rows of facet elements.
For example, neighboring facet elements of a row and / or facet elements of adjacent rows intermesh discontinuously.
It can be provided that all facet elements are convex or concave, or one part of the facet elements is convex and another part is concave, or at least all facet elements of one row or all facet elements convex or at least all facet elements of one row or all facet elements concave or
Facet elements of at least one row, preferably all rows, are alternately convex-concave.
Alternatively or preferably, it can additionally be provided that the second reflector surface region has one or more rows of facet elements running transversely, in particular in the horizontal direction.
It may be advantageous if adjacent facet elements of a series and / or facet elements of adjacent rows continuously merge into one another.
It can be provided that all facet elements are convex or concave, or one part of the facet elements is convex and another part is concave, or at least all facet elements of one row or all facet elements convex or at least all facet elements of a row or all facet elements concave or the facet elements at least one row, preferably of all rows, are alternately convex-concave.
The emission cone of the emitted light depends on the curvature of the respective facet, a smaller curvature for (in the far field) to a smaller emission cone. Smaller Abstrahlkegel lead to a concentration of the luminous flux, for example in the horizontal direction.
Convex-curved facets can improve the homogeneity of the light distribution, concave-curved facets can be better shaped by injection molding tools.
Furthermore, it can also be advantageously provided that the at least one collimator, which is assigned to the at least one first light source, directs the luminous flux of the first light source substantially parallel, wherein preferably the luminous flux is normal to an exit plane of the collimator.
Alternatively or preferably, in addition to the embodiment described above, it can also be provided that the at least one collimator, which is assigned to the at least one second light source, directs the luminous flux of the second light source in a first, vertical direction substantially parallel, and in a second, fanning out horizontally.
It may be provided that the separation into the first reflector surface region and the second reflector surface region extends horizontally.
Furthermore, the invention relates to a lighting device for a motor vehicle headlight, which comprises one or more lighting units described above.
A lighting unit described above is capable of realizing a variety of combinations of different light distributions. However, it may be the case that the achievable illuminance levels with only one lighting unit are too low to achieve the legally required minimum values. With a lighting device comprising two or more corresponding lighting units, the required values of the illuminance can be realized if the number of lighting units is selected such that they can supply the required luminous flux.
An illumination device with two or more illumination units according to the invention is also expedient if a segmented light distribution is to be generated.
In this case, each LED light source of a lighting unit generates a light segment of a light distribution, wherein either each LED light source of one lighting unit contributes to another segmented (total) light distribution (in this case, the lighting device is adapted to allocate two different segmented total light distributions generate, which in particular can be independently switched on and off), or both / all LED light sources of a lighting unit contribute to a single (total) light distribution, ie the lighting device is set up to produce only a single segmented total light distribution.
Finally, the invention also relates to a motor vehicle headlight with at least one illumination unit described above or with at least one illumination device described above.
In the following the invention is discussed in more detail with reference to the drawing. In this shows
1 shows a lighting unit according to the invention in a perspective view,
2 shows a further illumination unit according to the invention in a perspective view,
FIG. 3 shows the illumination unit of FIG. 2 in a vertical section A-A for illustrating the light beam path of the light emitted by a first light source,
4 shows the illumination unit from FIG. 2 in the vertical section A-A for illustrating the light beam path of the light emitted by a second light source,
5 shows a lighting unit in a perspective view from below,
5 a shows a section through the illumination unit of FIG. 5 in a sectional plane C-C through the reflector surface area for generating a daytime running light light distribution,
5b shows a section through the illumination unit from FIG. 5 in a sectional plane D-D through the reflector surface region for generating a high-beam light distribution,
6 shows another embodiment of the lighting unit in a perspective view from below,
6a shows a section through the illumination unit from FIG. 6 in a sectional plane E-E through the reflector area area for generating a daytime driving light-light distribution,
6b shows a section through the illumination unit from FIG. 6 in a sectional plane F-F through the reflector surface region for generating a high-beam light distribution, and FIG
7 shows an exemplary lighting device with four lighting units according to the invention.
In the context of this description, the terms "top", "bottom", "horizontal", "vertical" are to be understood as indications of the orientation when the unit is arranged in the normal position of use after it has been installed in a vehicle-mounted lighting device.
FIG. 1 shows an illumination unit 100 according to the invention for a motor vehicle headlight for generating two light distributions, in particular of two different light distributions. In the following, it is assumed that the illumination unit 100 shown is configured to generate a first total light distribution in the form of a high beam distribution and a second total light distribution in the form of a daytime running light distribution. Other combinations can be realized with a lighting unit 100 shown, as will be discussed in more detail below.
In the example shown, the illumination unit 100 comprises a first light source 1 for generating the first light distribution, i. the high beam distribution, and three second light sources 2 for generating the second light distribution, i. the daytime running light distribution.
Furthermore, the illumination unit 100 comprises a reflector 3, an exit lens 4, for example in the form of a projection lens, and collimators 5, 6a, 6b, 6c into which the light sources 1, 2 feed light when activated.
In principle, it can be provided in the context of the invention that in the case where two or more light sources are responsible for a specific light distribution, these light sources couple their light into a single, common collimator.
However, it can also be provided that, as shown in the present example, each light source 2 is assigned exactly one collimator 6a, 6b, 6c. Basically, i. In the general scope of the invention, it can be provided that each light source, even if they contribute to the same light distribution, is associated with exactly one collimator, in which the respective light source couples its light.
In the embodiment according to FIG. 1, light of the first light source 1, when switched on, is coupled into the associated collimator 5 and aligned therefrom to form a first light bundle.
Light from the second light sources 2 is coupled from the second light sources 2 into their associated collimators 6a, 6b, 6c when the light sources 2 are switched on, and aligned in each case into a second light bundle. In the example shown, therefore, three second, preferably superimposing, light beams are generated, with which together the second light distribution is generated.
The reflector 3 deflects the light beams of the light beams emerging from the collimators 5, 6a, 6b, 6c in the direction of the exit lens 4, and the exit lens 4 images the light beams reflected by the reflector 3 in the form of the first and the second light distribution.
In particular, as will be shown later, the exit lens 4 may be flat and it is preferably the rays reflected by the reflector 3 normal to the plane exit lens 4, so that they can pass without further deflection through them.
Preferably, which applies to the most general context of the present invention, light passes through the exit lens 4 only through and is thereby refracted. The actual light shaping takes place through the reflector. With the exit lens, i. by appropriate design of the exit lens 4, but can e.g. the width of the resulting light distribution can be adjusted / adjusted.
Reflector 3, exit lens 4 and collimators 5, 6a, 6b, 6c are made of a translucent, preferably one-piece body 101 - also referred to as "optical body" - formed on the reflector boundary surface 3 'of the reflector 3 and on the collimator boundary surfaces 5 ', 6a', 6b ', 6c' of the collimators 5, 6a, 6b, 6c are totally reflected in the light-transmissive body 101 propagating light rays.
It is envisaged that the reflector 3 has a first reflector surface region 30, which receives light exclusively from the first light source 1, and a second reflector surface region 31, which receives light exclusively from the second light source 2.
The exit lens 4 has a first exit lens area 40, which receives light exclusively from the first reflector area 30, and a second exit area 41, which receives light exclusively from the second reflector area 31.
Preferably, the two reflector surface areas 30, 31 and the two exit lens areas 40, 41 are separated by a horizontally extending separation (dividing line) 300, 400, that is to say vertically, possibly offset, one above the other. Light emitted via the first exit lens area 40 is imaged as a first light distribution, in this example as a high beam distribution, and light emitted via the second exit lens area 41 is imaged as a second light distribution, in this example as a daytime running light distribution.
An advantage of the invention in the general general context, i. is not limited to the present embodiment, is that with a single optical body in which propagated light propagates via total reflection, two or more light distribution can be generated, which are not affected by the inventive design, the different light distributions and are designed independently can.
The light sources Ϊ, 2 preferably each comprise one light emitting diode or a plurality of light emitting diodes, and the light sources 1, 2 for each light distribution can be driven independently of each other, i. especially switched on and off. It can also be provided that the light sources 1, 2 - again not limited to the embodiment shown, but also in the most general sense of the invention -dimmed, in particular can be dimmed independently.
Finally, in general, not limited to the example shown, it may also be provided that in the case - as shown for example in FIG. 1 - that a plurality of light sources 2 contribute to a light distribution, these light sources 2 are driven independently of each other, i. switched on and off and, for example, can be dimmed.
General, i. is not limited to the present embodiment that the translucent material from which the body 100 is formed, e.g. a plastic, preferably having a refractive index greater than that of air. The material contains e.g. PMMA (polymethyl methacrylate) or PC (polycarbonate) and is particularly preferably formed therefrom.
FIG. 2 shows a similar arrangement to that of FIG. 1, and the statements made in connection with FIG. 1 apply. Differences are in the following aspects: • The position of the light source 1 for generating a high beam distribution and those of the light sources 2 for the daytime running light distribution are reversed • Accordingly, the reflector surface areas 30, 31 are reversed, as are the location of the first exit lens area 40 and of the second exit lens area 41 reversed • The three second light sources 2 couple light into a single collimator 6 • The structuring of the reflector surface areas 30, 31 is configured differently in the variant of Figure 2 as that of Figure 1.
In the examples shown in FIGS. 1 and 2, the exit lens 4 is designed as a flat surface
In the examples shown it is provided that the exit lens 4 extends at an angle of 90 ° to at least one light exit plane of a collimator 5, 6a, 6b, 6c and 5, 6, respectively.
Furthermore, it is provided in the embodiment shown that the reflector 3 is formed from its basic shape as a flat surface. On this flat surface, as will be explained later, structuring can be provided.
As shown in FIGS. 1 and 2, it can be provided that the reflector 3 extends at an angle of 45 ° to at least one light exit plane of a collimator 5, 6a, 6b, 6c or 5, 6.
The light exit planes of all collimators may be parallel to each other, as in the embodiments shown, and accordingly, in this case, the reflector is disposed at all light exit planes of collimators at 45 ° and the exit lens is positioned at all light exit planes of the collimators at 90 ° ,
In particular, it is then provided that the exit lens 4 extends at an angle of 45 ° to the reflector 3.
FIGS. 3 and 4 also show, with reference to a section A-A from FIG. 2, the beam path in the optical body 101:
Light of the first light source 1, when turned on, is coupled into the associated collimator 5 and aligned therefrom to a first light beam S1.
In this case, 5 light beams are totally reflected on the boundary surfaces 5 'of the collimator. In a central area, light rays can also enter the collimator directly without prior reflection. Preferably, the light beam S1 generated by the collimator 5 is a light beam of parallel light beams (FIG. 3).
Light of the second light sources 2, when turned on, is coupled into the associated collimator 6 and aligned therefrom to a second light beam S2.
In this case, total light beams are incident on the boundary surfaces 6a ', 6b', 6c 'and 6' of a collimator 6a, 6b, 6c and 6, respectively. In a central area, light rays can also enter the collimator directly without prior reflection. Preferably, the light beam S2 generated by the collimator 6 is a light beam of parallel light beams (Figure 4).
The reflector 3 deflects the light beams of the light beams SI, S2 emerging from the collimators 5, 6 in the direction of the exit lens 4, and the exit lens 4 images the light beams reflected by the reflector 3 in the form of the first and the second light distribution. In this case, the first exit lens region 40 receives light exclusively from the first reflector surface region 30 (FIG. 3), the second exit lens region 41 receives light exclusively from the second reflector surface region 31 (FIG. 4).
In particular, as shown, the exit lens 4 may be planar and it is preferable for the beams reflected by the reflector 3 to impinge normally on the planar exit lens 4 so that they can pass therethrough without further deflection. This function can also be realized in the present text by an exit lens, and the term "imaging" can also be understood in this text to mean that light passes through the exit lens without any further deflection.
However, this relationship only applies if the reflector generates a single parallel beam. In the general case, however, the reflector also emits divergent rays, which then do not impinge at 90 ° on the, in particular flat, interface / exit lens, so that the described relationship that the light beams are not deflected, then does not apply. The exit lens then deflects the beams accordingly and "projects" a light distribution into the traffic area.
With regard to the collimators, regardless of the specific embodiment, but also in conjunction with the embodiments shown in FIGS. 1 and 2, it may be provided that the at least one collimator 5, which is assigned to the at least one first light source 1, the luminous flux of the first light source 1 is directed substantially parallel, wherein preferably the luminous flux is normal to an exit plane of the collimator 5.
Alternatively or preferably, in addition to the embodiment described above, it can also be provided that the at least one collimator 6; 6a, 6b, 6c, which is associated with the at least one second light source 2, the luminous flux of the second light source 2 in a first, vertical direction substantially parallel, and fanned in a second, horizontal direction.
The terms "vertical" and "horizontal" are to be understood to mean that the light beams are influenced in such a way that, when they are irradiated to a region in front of the lighting unit, when the lighting unit is in a position corresponding to the installation position in a motor vehicle, horizontally or horizontally vertically aligned accordingly.
As already mentioned above, it may be advantageous if the reflector 3, i. In particular, the first reflector surface region 30 has a structuring, for example, in that the first reflector surface region 30 is subdivided into facets, by means of which structuring the light rays reflected by the reflector surface region 30 are deflected in the vertical and / or horizontal direction to produce the first light distribution can.
In this way, the light distribution generated by means of the first reflector surface area can be optimally adapted.
The terms "vertical" and "horizontal" refer to the light image in a screen projection, horizontal means accordingly "in the direction of the H-axis" and vertically "in the direction of the V-axis".
Alternatively or preferably additionally, it can be provided that the second reflector surface region 31 has a structuring, for example by the second reflector surface region 31 being divided into facets, by means of which structuring the light rays reflected by the reflector surface region 31 are vertical and / or horizontal Direction to generate the second light distribution are deflected.
In this way, the light distribution generated by means of the second reflector surface area can be optimally adapted.
FIG. 5 shows a first example of such a structuring, in which both reflector surface regions have a structuring, in particular facets, wherein the structurings, in particular the facets, of the two reflector surface regions 30, 31 are designed differently. The amplitudes are emphasized greatly exaggerated both in the figures 5a and 5b.
This makes it even better possible to design the different light distribution independently of each other optimally in accordance with the desired and / or required requirements.
Figure 5 and Figure 5b, which shows the section D-D of Figure 5, show a first reflector surface area 30 with a series of facet elements 30 '(high beam).
FIG. 5 and FIG. 5a, which illustrate section C-C of FIG. 5, show a second reflector surface region 31 with two horizontal rows of facet elements 31 '(daytime running light).
FIG. 6 with the sections E-E (FIG. 6a, daytime running light) and F-F (FIG. 6b, main beam) shows a further basic design possibility.
In summary, it can be stated in the most general scope of the invention that the design of the light image preferably takes place via the reflector and the exit lens preferably serves only as a light exit surface, which allows the light to emerge from the optic body 101 either at the angle of incidence without deflection or with deflection.
In the case of the daytime running light facets with several light coupling areas, the emission cones can be overlapped with concave facets, so that the homogeneity of the light distribution produced increases. This applies both to the light distribution arising in the far field and to the luminous impression that a viewer has of the lighting unit or of the motor vehicle headlight.
Finally, it is also possible to provide the planar lens exit surface with horizontally and / or vertically oriented prisms or corrugations in order to redirect the light in a targeted manner, e.g. to fulfill the requirements for spatial illumination in the case of signal light functions.
With an illumination unit according to the invention, for example as described in the embodiments, but also in the general inventive context, two independent light distributions can be generated with one optical body.
For example, as described in the figures, a combination of high beam and daytime running lights can be generated. A lighting unit can, if the light sources are sufficiently strong, alone generate these light distributions. Otherwise, two or more identical or largely identical lighting units are combined to form a lighting device, which supplies the necessary luminous flux for law-compliant light distributions.
In principle, any desired combinations of light distributions can be generated, for example a combination of high beam direction indicator (turn signal), in particular in the form of a wiper indicator. Preferably, several lighting units are combined here again to form a lighting device, the first light sources generate e.g. the high beam distribution and the second light sources the flashing light, wherein the second light sources can also be switched one behind the other to produce a wiper blinker, with which the direction of the turning process can be displayed.
In such a lighting device, but also in the general context of a lighting device with two or more lighting units can be provided that over each exit lens area the same light distribution is generated, and in sum with the two or more lighting units, the required illuminance is realized. However, it can also be provided that each exit lens area of a light distribution generates only a segment of this light distribution, so that a segmented light distribution, e.g. a segmented high beam distribution can be generated.
The following table also lists possible combinations of light distributions, as can be produced with a lighting unit or lighting device according to the invention:
As already described above, a lighting unit according to the invention is in principle able to realize a multiplicity of combinations of different light distributions. However, it may be the case that the achievable illuminance levels with only one lighting unit are too low to achieve the legally required minimum values. With a lighting device comprising two or more corresponding lighting units, the required values of the illuminance can be realized if the number of lighting units is selected such that they can supply the required luminous flux.
An illumination device with two or more illumination units according to the invention is also expedient if a segmented light distribution is to be generated. In this case, each LED light source of a lighting unit generates a light segment of a light distribution, wherein either each LED light source of one lighting unit contributes to another segmented (total) light distribution (the
Lighting device in this case is adapted to produce two different segmented overall light distributions, which in particular can be switched on and off independently of each other), or both LED light sources of a lighting unit contribute to a single (total) light distribution, i. the lighting device is set up to produce only a single segmented total light distribution.
FIG. 7 shows an example of such an illumination device 1000. In the example shown, this consists of four illumination units 100, which again each have first light sources 1 and second light sources 2 as described above. With such an arrangement, for example, project overlay possibilities described above can be realized.
As shown, preferably no further optical elements are connected downstream of a lighting unit or lighting device according to the invention. However, it can be provided that an additional imaging lens of each or each lighting unit or a lighting device is connected downstream.

权利要求:
Claims (21)
[1]
claims
1. Lighting unit for a motor vehicle headlight for generating at least two light distributions, the lighting unit comprising: - at least one first light source (1) for generating a first light distribution, - at least one second light source (2) for generating a second light distribution, - a reflector ( 3), - an exit lens (4), in particular in the form of a projection lens, - collimators (5, 6, 5, 6a, 6b, 6c), into which the light sources (1, 2) can supply light, wherein light of at least a first light source (1) from which at least one of the at least one first light source (1) associated collimator (5) is aligned to a first light beam (Sl), and wherein • light of the at least one second light source (2) of the at least one of at least one second light source (2) associated collimator (6; 6a, 6b, 6c) is aligned to a second light beam (S2), and wherein the reflector (3), the light rays of the Collimators (5, 6; 5, 6a, 6b, 6c) deflecting light beam (SI, S2) in the direction of the exit lens (4) deflects, and wherein the exit lens (4) of the reflector (3) reflected light beams in Lorm of the first and the second light distribution, and wherein the reflector (3), exit lens (4) and collimators (5, 6; 5, 6a, 6b, 6c) are formed of a transparent body (100), and wherein at a reflector boundary surface of the reflector (3 ') and preferably at the collimator boundary surfaces (5 ', 6', 5 ', 6a', 6b ', 6c') of the collimators (5, 6; 5, 6a, 6b, 6c) located in the translucent body (101 ) reflecting light beams (SI, S2), characterized in that the reflector (3) has a first reflector surface region (30) which receives light exclusively from the at least one first light source (1), and the reflector (3) a second reflector surface region (31), which light exclusively from the zuind est receives a second light source (2), and wherein the exit lens (4) has a first exit lens area (40) which receives light exclusively from the first reflector area (30), and the exit lens (4) has a second exit lens area (40). A region (41) which receives light exclusively from the second reflector surface region (31), and light emitted via the first exit lens region (40) as the first light distribution and light emitted via the second exit lens region (41) as the second Light distribution is displayed.
[2]
2. Lighting unit according to claim 1, characterized in that the light sources each comprise one or more LEDs, wherein it is in the light sources (1, 2) are each preferably single-chip LEDs.
[3]
3. Lighting unit according to claim 1 or 2, characterized in that the exit lens (4) is formed as a flat or planar surface.
[4]
4. Lighting unit according to claim 3, characterized in that the exit lens (4) extends at an angle of 90 ° to a light exit plane of at least one collimator (5, 6; 5, 6a, 6b, 6c).
[5]
5. Lighting unit according to one of claims 1 to 4, characterized in that the reflector (3) is formed as a flat surface.
[6]
6. Lighting unit according to claim 5, characterized in that the reflector (3) extends at an angle of 45 ° to a light exit plane of at least one collimator (5, 6; 5, 6a, 6b, 6c).
[7]
7. Lighting unit according to one of claims 3 to 6, characterized in that the exit lens (4) at an angle of 45 ° to the reflector (3).
[8]
8. Lighting unit according to one of claims 1 to 7, characterized in that the first reflector surface region (30) has a structuring, for example by the first reflector surface region (30) is divided into facets, by means of which structuring of the reflector surface Area (30) reflected light beams in the vertical and / or horizontal direction are deflected to produce the first light distribution.
[9]
9. Lighting unit according to one of claims 1 to 8, characterized in that the second reflector surface region (31) has a structuring, for example by the second reflector surface region (31) is divided into facets, by means of which structuring of the reflector surface Area (31) reflected light rays are deflected in the vertical and / or horizontal direction to produce the second light distribution.
[10]
10. Lighting unit according to claim 8 and 9, characterized in that the structuring, in particular the facets, the two reflector surface areas (30, 31) is / are different.
[11]
11. Lighting unit according to claim 10, characterized in that the first reflector surface region (30) has one or more transversely, in particular in the horizontal direction, extending rows of facet elements (30 ').
[12]
12. Lighting unit according to claim 11, characterized in that adjacent facet elements (30 ') of a row and / or facet elements (30') of adjacent rows discontinuously merge into one another.
[13]
13. Lighting unit according to claim 11 or 12, characterized in that all facet elements are convex or concave or a part of the facet elements convex and another part is concave, or at least all facet elements of a row or all facet elements convex or at least all facet elements of a row or all the facet elements are concave or the facet elements of at least one row, preferably of all rows, are of alternating convex-concave design.
[14]
14. Lighting unit according to claim 9 or 10, characterized in that the second reflector surface region (31) has one or more transversely, in particular in the horizontal direction, extending rows of facet elements (31 ').
[15]
15. Lighting unit according to claim 14, characterized in that adjacent facet elements (31 ') of one row and / or facet elements (31') of adjacent rows merge into one another continuously.
[16]
16. Lighting unit according to one of claims 13 to 15, characterized in that all facet elements are convex or concave or a part of the facet elements convex and another part is concave, or at least all facet elements of a series or all facet elements convex or at least all facet elements a row or all facet elements concave or the facet elements of at least one row, preferably all rows, are alternately convex - concave.
[17]
17. Lighting unit according to one of claims 1 to 16, characterized in that the at least one collimator (5) which is associated with the at least one first light source (1), the luminous flux of the first light source (1) is directed substantially parallel, preferably the luminous flux is normal to an exit plane of the collimator (5).
[18]
18. Lighting unit according to one of claims 1 to 17, characterized in that the at least one collimator (6; 6a, 6b, 6c), which is associated with the at least one second light source (2), the luminous flux of the second light source (2) in directed in a first, vertical direction substantially parallel, and fan out in a second, horizontal direction.
[19]
19. Lighting unit according to one of claims 1 to 18, characterized in that the separation (300) in the first reflector surface region (30) and the second reflector surface region (31) extends horizontally.
[20]
20. Lighting device for a motor vehicle headlight, which comprises one or more lighting units according to one of claims 1 to 19.
[21]
21. Motor vehicle headlight with at least one lighting unit according to one of claims 1 to 19 or with at least one lighting device according to claim 20.

类似技术:

公开号 | 公开日 | 专利标题

AT518552B1|2017-11-15|Lighting unit for a motor vehicle headlight for generating at least two light distributions

EP2754948B1|2017-10-18|Light module for a motor vehicle headlamp, which is equipped for forming strip-shaped light distributions

EP2799761B1|2020-10-14|Light module for a motor vehicle headlamp

DE102016125887A1|2018-07-05|Light module for motor vehicle headlights

EP3403021B1|2021-10-27|Light module for a vehicle headlamp with a dark-light-boundary

DE202016002197U1|2016-06-06|Direct-emitting LED lamp with anti-glare effect

EP3494343B1|2020-08-05|Vehicle headlamp

EP3112215B1|2021-03-10|Light guidance device for creating at least one illumination function and/or signaling function of a head lamp of a vehicle

DE202016008339U1|2017-08-04|Optical fiber arrangement for generating at least one illumination function and / or signaling function of a motor vehicle headlight

WO2015131212A1|2015-09-11|Light guiding element for an illumination unit

DE102014206593A1|2015-10-08|Motor vehicle light with wiping effect

EP2984397B1|2017-05-31|Lighting unit for a vehicle headlamp

EP3538812A1|2019-09-18|Illumination device, in particular for a motor vehicle

DE102017107781A1|2018-10-11|Primary optical unit for a light module

EP3112216A1|2017-01-04|Light guidance device for creating at least one illumination function and/or signaling function of a head lamp of a vehicle

DE102017115899A1|2019-01-17|Motor vehicle lamp and motor vehicle headlight with such a lamp

EP2835578A1|2015-02-11|Plate-shaped fibre optic element made of transparent material and light module for a motor vehicle illumination device with such a fibre optic element

AT519863A4|2018-11-15|Automotive vehicle lighting device with subdivided micro-optics systems having micro-entry optics

DE102018115229A1|2019-10-02|Light washer for a motor vehicle light

EP3755941B1|2022-03-09|Motor vehicle headlamp with light guides arranged in matrix form

DE102019104722A1|2020-08-27|Headlight with a plurality of semiconductor light sources and a one-piece primary optics field

DE102020110725A1|2021-10-21|Automotive light module

DE102018129596A1|2020-05-28|Lighting device for vehicles

WO2008052635A1|2008-05-08|Vehicle headlight

DE102007025122A1|2008-12-04|Motor vehicle light, has dispersion producing lens divided into pulvinated facets, where facets are designed in photometric manner such that signal patterns and strengths are different during view of light from two defined view directions

同族专利:

公开号 | 公开日

CN109563974B|2021-08-31|

CN109563974A|2019-04-02|

EP3500794A1|2019-06-26|

JP6842532B2|2021-03-17|

EP3500794B1|2021-11-10|

US20190186708A1|2019-06-20|

WO2018032025A1|2018-02-22|

KR102278912B1|2021-07-20|

US10605428B2|2020-03-31|

KR20190040269A|2019-04-17|

AT518552B1|2017-11-15|

JP2019525431A|2019-09-05|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

EP2390561A1|2010-05-28|2011-11-30|Hella KGaA Hueck & Co.|LED projection module for a vehicle headlight|

DE102014205994A1|2014-03-31|2015-10-01|Automotive Lighting Reutlingen Gmbh|Light module with semiconductor light source and attachment optics and motor vehicle headlights with such a light module|FR3077362A1|2018-01-31|2019-08-02|Valeo Vision|LUMINOUS MODULE FOR A MOTOR VEHICLE, AND LIGHTING AND / OR SIGNALING DEVICE EQUIPPED WITH SUCH A MODULE|US4576124A|1984-10-25|1986-03-18|Westinghouse Electric Corp.|Apparatus and method for fluidly connecting a boiler into pressurized steam feed line and combined-cycle steam generator power plant embodying the same|

JPS6326003Y2|1984-12-14|1988-07-15|

DE10234110B4|2002-07-26|2010-04-08|Automotive Lighting Reutlingen Gmbh|Luminaire for vehicles, in particular motor vehicles|

JP2004103503A|2002-09-12|2004-04-02|Ichikoh Ind Ltd|Light guide body and lamp for vehicle having the light guide body|

WO2006033040A1|2004-09-20|2006-03-30|Koninklijke Philips Electronics N.V.|Led collimator element with a semiparabolic reflector|

FR2884899B1|2005-04-21|2007-06-15|Valeo Vision Sa|LIGHTING MODULE PROVIDING A LUMINOUS BEAM WITH CUT FOR A MOTOR VEHICLE PROJECTOR, AND PROJECTOR COMPRISING SUCH A MODULE|

JP4468857B2|2005-05-17|2010-05-26|株式会社小糸製作所|Lighting fixtures for vehicles|

JP4979565B2|2007-12-14|2012-07-18|株式会社小糸製作所|Vehicle lighting|

JP5516854B2|2009-10-08|2014-06-11|スタンレー電気株式会社|Vehicle lighting|

JP5501878B2|2010-07-08|2014-05-28|株式会社小糸製作所|Lamp unit|

JP5707661B2|2011-03-25|2015-04-30|スタンレー電気株式会社|VEHICLE LIGHT UNIT AND LIGHT GUIDE USED FOR VEHICLE LIGHT|

EP2737246A1|2011-07-25|2014-06-04|OSRAM GmbH|A light source, for example for lighting surfaces|

JP2013047091A|2011-07-25|2013-03-07|Sharp Corp|Lighting device and vehicle headlamp including the same|

AT512468B1|2012-02-13|2014-01-15|Zizala Lichtsysteme Gmbh|LIGHTING MODULE FOR A MOTOR VEHICLE|

DE102012202290B4|2012-02-15|2014-03-27|Automotive Lighting Reutlingen Gmbh|Light module for a glare-free motor vehicle high beam|

DE102012205438A1|2012-04-03|2013-10-10|Bayerische Motoren Werke Aktiengesellschaft|Lighting device for a motor vehicle|

US9291806B2|2012-06-21|2016-03-22|Qualcomm Mems Technologies, Inc.|Beam pattern projector with modulating array of light sources|

FR2992711B1|2012-06-28|2018-08-10|Valeo Vision|OPTICAL DEVICE FOR A MOTOR VEHICLE WITH DIOPTERIC ELEMENTS INTEGRATED WITH THE LIGHT PIPE|

US9308858B2|2012-07-13|2016-04-12|Lg Innotek Co., Ltd.|Lamp unit and lighting system for vehicle|

JP5911397B2|2012-07-31|2016-04-27|スタンレー電気株式会社|Vehicle headlamp|

CZ306672B6|2012-08-22|2017-05-03|Varroc Lighting Systems, s.r.o.|A headlight of a motor vehicle|

AT513816B1|2012-12-20|2015-11-15|Zizala Lichtsysteme Gmbh|Light guide unit for a lighting unit of a headlamp and lighting unit and headlamp|

AT514121B1|2013-04-12|2015-06-15|Zizala Lichtsysteme Gmbh|Lighting unit for a vehicle headlight and vehicle headlights|

JP6164464B2|2013-04-25|2017-07-19|スタンレー電気株式会社|Vehicle lighting|

CN105408678B|2013-08-09|2018-05-22|株式会社小糸制作所|Lamps apparatus for vehicle|

WO2015178155A1|2014-05-23|2015-11-26|スタンレー電気株式会社|Lens body, combined lens body, and vehicular lamp fitting|

JP6643645B2|2015-02-17|2020-02-12|スタンレー電気株式会社|Vehicle lighting|

DE102016106244A1|2016-04-06|2017-10-12|Hella Kgaa Hueck & Co.|Light source for a lighting device and lighting device with such a light source|DE102018201533A1|2018-02-01|2019-08-01|Bayerische Motoren Werke Aktiengesellschaft|Lighting device for a motor vehicle|

FR3079598B1|2018-03-30|2021-04-30|Valeo Vision|LIGHTING MODULE WITH MULTISOURCE OPTICAL ELEMENT WITH SMOOTH EXIT FACE|

EP3572719A1|2018-05-25|2019-11-27|ZKW Group GmbH|Light module for a motor vehicle headlamp|

KR20200143576A|2019-06-13|2020-12-24|현대자동차주식회사|Slim type lamp apparatus for vehicle|

KR102347922B1|2019-12-06|2022-01-06|이소영|Lighting optical lens and lighting device using the same|

KR20210097969A|2020-01-31|2021-08-10|현대모비스 주식회사|Apparatus for multi-function operating using micro lens array|

法律状态:

优先权:

申请号 | 申请日 | 专利标题

ATA50749/2016A|AT518552B1|2016-08-19|2016-08-19|Lighting unit for a motor vehicle headlight for generating at least two light distributions|ATA50749/2016A| AT518552B1|2016-08-19|2016-08-19|Lighting unit for a motor vehicle headlight for generating at least two light distributions|

JP2019509533A| JP6842532B2|2016-08-19|2017-07-31|Lighting unit for automatic vehicle floodlights that generate at least two light distributions|

CN201780050824.1A| CN109563974B|2016-08-19|2017-07-31|Lighting unit for a motor vehicle headlight for generating at least two light distributions|

EP17757667.5A| EP3500794B1|2016-08-19|2017-07-31|Lighting module for a vehicle headlamp creating at least two light distributions|

US16/326,271| US10605428B2|2016-08-19|2017-07-31|Lighting unit for a motor vehicle headlight for generating at least two light distributions|

KR1020197007777A| KR102278912B1|2016-08-19|2017-07-31|Lighting unit for a motor vehicle headlight for generating at least two light distributions|

PCT/AT2017/060193| WO2018032025A1|2016-08-19|2017-07-31|Lighting unit for a motor vehicle headlight for generating at least two light distributions|

[返回顶部]